Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1 | //===-- LegalizeDAG.cpp - Implement SelectionDAG::Legalize ----------------===// |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 2 | // |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
Chris Lattner | 4ee451d | 2007-12-29 20:36:04 +0000 | [diff] [blame] | 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 7 | // |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 8 | //===----------------------------------------------------------------------===// |
| 9 | // |
| 10 | // This file implements the SelectionDAG::Legalize method. |
| 11 | // |
| 12 | //===----------------------------------------------------------------------===// |
| 13 | |
| 14 | #include "llvm/CodeGen/SelectionDAG.h" |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 15 | #include "llvm/CodeGen/MachineFunction.h" |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 16 | #include "llvm/CodeGen/MachineFrameInfo.h" |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 17 | #include "llvm/CodeGen/MachineJumpTableInfo.h" |
Chris Lattner | 84bc542 | 2007-12-31 04:13:23 +0000 | [diff] [blame] | 18 | #include "llvm/CodeGen/MachineModuleInfo.h" |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 19 | #include "llvm/CodeGen/PseudoSourceValue.h" |
Evan Cheng | 61bbbab | 2007-08-16 23:50:06 +0000 | [diff] [blame] | 20 | #include "llvm/Target/TargetFrameInfo.h" |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 21 | #include "llvm/Target/TargetLowering.h" |
Chris Lattner | e1bd822 | 2005-01-11 05:57:22 +0000 | [diff] [blame] | 22 | #include "llvm/Target/TargetData.h" |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 23 | #include "llvm/Target/TargetMachine.h" |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 24 | #include "llvm/Target/TargetOptions.h" |
Dan Gohman | 707e018 | 2008-04-12 04:36:06 +0000 | [diff] [blame] | 25 | #include "llvm/Target/TargetSubtarget.h" |
Chris Lattner | adf6a96 | 2005-05-13 18:50:42 +0000 | [diff] [blame] | 26 | #include "llvm/CallingConv.h" |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 27 | #include "llvm/Constants.h" |
Reid Spencer | c103057 | 2007-01-19 21:13:56 +0000 | [diff] [blame] | 28 | #include "llvm/DerivedTypes.h" |
Chris Lattner | 5e46a19 | 2006-04-02 03:07:27 +0000 | [diff] [blame] | 29 | #include "llvm/Support/CommandLine.h" |
Chris Lattner | a4f0b3a | 2006-08-27 12:54:02 +0000 | [diff] [blame] | 30 | #include "llvm/Support/Compiler.h" |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 31 | #include "llvm/Support/MathExtras.h" |
Chris Lattner | 7971514 | 2007-02-03 01:12:36 +0000 | [diff] [blame] | 32 | #include "llvm/ADT/DenseMap.h" |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 33 | #include "llvm/ADT/SmallVector.h" |
Chris Lattner | 00755df | 2007-02-04 00:27:56 +0000 | [diff] [blame] | 34 | #include "llvm/ADT/SmallPtrSet.h" |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 35 | #include <map> |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 36 | using namespace llvm; |
| 37 | |
| 38 | //===----------------------------------------------------------------------===// |
| 39 | /// SelectionDAGLegalize - This takes an arbitrary SelectionDAG as input and |
| 40 | /// hacks on it until the target machine can handle it. This involves |
| 41 | /// eliminating value sizes the machine cannot handle (promoting small sizes to |
| 42 | /// large sizes or splitting up large values into small values) as well as |
| 43 | /// eliminating operations the machine cannot handle. |
| 44 | /// |
| 45 | /// This code also does a small amount of optimization and recognition of idioms |
| 46 | /// as part of its processing. For example, if a target does not support a |
| 47 | /// 'setcc' instruction efficiently, but does support 'brcc' instruction, this |
| 48 | /// will attempt merge setcc and brc instructions into brcc's. |
| 49 | /// |
| 50 | namespace { |
Chris Lattner | 360e820 | 2006-06-28 21:58:30 +0000 | [diff] [blame] | 51 | class VISIBILITY_HIDDEN SelectionDAGLegalize { |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 52 | TargetLowering &TLI; |
| 53 | SelectionDAG &DAG; |
| 54 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 55 | // Libcall insertion helpers. |
| 56 | |
| 57 | /// LastCALLSEQ_END - This keeps track of the CALLSEQ_END node that has been |
| 58 | /// legalized. We use this to ensure that calls are properly serialized |
| 59 | /// against each other, including inserted libcalls. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 60 | SDValue LastCALLSEQ_END; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 61 | |
| 62 | /// IsLegalizingCall - This member is used *only* for purposes of providing |
| 63 | /// helpful assertions that a libcall isn't created while another call is |
| 64 | /// being legalized (which could lead to non-serialized call sequences). |
| 65 | bool IsLegalizingCall; |
| 66 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 67 | enum LegalizeAction { |
Chris Lattner | 68a17fe | 2006-01-29 08:42:06 +0000 | [diff] [blame] | 68 | Legal, // The target natively supports this operation. |
| 69 | Promote, // This operation should be executed in a larger type. |
Chris Lattner | d74ea2b | 2006-05-24 17:04:05 +0000 | [diff] [blame] | 70 | Expand // Try to expand this to other ops, otherwise use a libcall. |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 71 | }; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 72 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 73 | /// ValueTypeActions - This is a bitvector that contains two bits for each |
| 74 | /// value type, where the two bits correspond to the LegalizeAction enum. |
| 75 | /// This can be queried with "getTypeAction(VT)". |
Chris Lattner | 68a17fe | 2006-01-29 08:42:06 +0000 | [diff] [blame] | 76 | TargetLowering::ValueTypeActionImpl ValueTypeActions; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 77 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 78 | /// LegalizedNodes - For nodes that are of legal width, and that have more |
| 79 | /// than one use, this map indicates what regularized operand to use. This |
| 80 | /// allows us to avoid legalizing the same thing more than once. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 81 | DenseMap<SDValue, SDValue> LegalizedNodes; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 82 | |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 83 | /// PromotedNodes - For nodes that are below legal width, and that have more |
| 84 | /// than one use, this map indicates what promoted value to use. This allows |
| 85 | /// us to avoid promoting the same thing more than once. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 86 | DenseMap<SDValue, SDValue> PromotedNodes; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 87 | |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 88 | /// ExpandedNodes - For nodes that need to be expanded this map indicates |
| 89 | /// which which operands are the expanded version of the input. This allows |
| 90 | /// us to avoid expanding the same node more than once. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 91 | DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedNodes; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 92 | |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 93 | /// SplitNodes - For vector nodes that need to be split, this map indicates |
| 94 | /// which which operands are the split version of the input. This allows us |
| 95 | /// to avoid splitting the same node more than once. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 96 | std::map<SDValue, std::pair<SDValue, SDValue> > SplitNodes; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 97 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 98 | /// ScalarizedNodes - For nodes that need to be converted from vector types to |
| 99 | /// scalar types, this contains the mapping of ones we have already |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 100 | /// processed to the result. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 101 | std::map<SDValue, SDValue> ScalarizedNodes; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 102 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 103 | void AddLegalizedOperand(SDValue From, SDValue To) { |
Chris Lattner | 69a889e | 2005-12-20 00:53:54 +0000 | [diff] [blame] | 104 | LegalizedNodes.insert(std::make_pair(From, To)); |
| 105 | // If someone requests legalization of the new node, return itself. |
| 106 | if (From != To) |
| 107 | LegalizedNodes.insert(std::make_pair(To, To)); |
Chris Lattner | 8afc48e | 2005-01-07 22:28:47 +0000 | [diff] [blame] | 108 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 109 | void AddPromotedOperand(SDValue From, SDValue To) { |
Dan Gohman | 6b345ee | 2008-07-07 17:46:23 +0000 | [diff] [blame] | 110 | bool isNew = PromotedNodes.insert(std::make_pair(From, To)).second; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 111 | assert(isNew && "Got into the map somehow?"); |
Chris Lattner | 69a889e | 2005-12-20 00:53:54 +0000 | [diff] [blame] | 112 | // If someone requests legalization of the new node, return itself. |
| 113 | LegalizedNodes.insert(std::make_pair(To, To)); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 114 | } |
Chris Lattner | 8afc48e | 2005-01-07 22:28:47 +0000 | [diff] [blame] | 115 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 116 | public: |
Dan Gohman | 1002c02 | 2008-07-07 18:00:37 +0000 | [diff] [blame] | 117 | explicit SelectionDAGLegalize(SelectionDAG &DAG); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 118 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 119 | /// getTypeAction - Return how we should legalize values of this type, either |
| 120 | /// it is already legal or we need to expand it into multiple registers of |
| 121 | /// smaller integer type, or we need to promote it to a larger type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 122 | LegalizeAction getTypeAction(MVT VT) const { |
Chris Lattner | 68a17fe | 2006-01-29 08:42:06 +0000 | [diff] [blame] | 123 | return (LegalizeAction)ValueTypeActions.getTypeAction(VT); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 124 | } |
| 125 | |
| 126 | /// isTypeLegal - Return true if this type is legal on this target. |
| 127 | /// |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 128 | bool isTypeLegal(MVT VT) const { |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 129 | return getTypeAction(VT) == Legal; |
| 130 | } |
| 131 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 132 | void LegalizeDAG(); |
| 133 | |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 134 | private: |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 135 | /// HandleOp - Legalize, Promote, or Expand the specified operand as |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 136 | /// appropriate for its type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 137 | void HandleOp(SDValue Op); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 138 | |
| 139 | /// LegalizeOp - We know that the specified value has a legal type. |
| 140 | /// Recursively ensure that the operands have legal types, then return the |
| 141 | /// result. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 142 | SDValue LegalizeOp(SDValue O); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 143 | |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 144 | /// UnrollVectorOp - We know that the given vector has a legal type, however |
| 145 | /// the operation it performs is not legal and is an operation that we have |
| 146 | /// no way of lowering. "Unroll" the vector, splitting out the scalars and |
| 147 | /// operating on each element individually. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 148 | SDValue UnrollVectorOp(SDValue O); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 149 | |
| 150 | /// PerformInsertVectorEltInMemory - Some target cannot handle a variable |
| 151 | /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it |
| 152 | /// is necessary to spill the vector being inserted into to memory, perform |
| 153 | /// the insert there, and then read the result back. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 154 | SDValue PerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, |
| 155 | SDValue Idx); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 156 | |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 157 | /// PromoteOp - Given an operation that produces a value in an invalid type, |
| 158 | /// promote it to compute the value into a larger type. The produced value |
| 159 | /// will have the correct bits for the low portion of the register, but no |
| 160 | /// guarantee is made about the top bits: it may be zero, sign-extended, or |
| 161 | /// garbage. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 162 | SDValue PromoteOp(SDValue O); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 163 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 164 | /// ExpandOp - Expand the specified SDValue into its two component pieces |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 165 | /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, |
| 166 | /// the LegalizeNodes map is filled in for any results that are not expanded, |
| 167 | /// the ExpandedNodes map is filled in for any results that are expanded, and |
| 168 | /// the Lo/Hi values are returned. This applies to integer types and Vector |
| 169 | /// types. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 170 | void ExpandOp(SDValue O, SDValue &Lo, SDValue &Hi); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 171 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 172 | /// SplitVectorOp - Given an operand of vector type, break it down into |
| 173 | /// two smaller values. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 174 | void SplitVectorOp(SDValue O, SDValue &Lo, SDValue &Hi); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 175 | |
Dan Gohman | 89b20c0 | 2007-06-27 14:06:22 +0000 | [diff] [blame] | 176 | /// ScalarizeVectorOp - Given an operand of single-element vector type |
| 177 | /// (e.g. v1f32), convert it into the equivalent operation that returns a |
| 178 | /// scalar (e.g. f32) value. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 179 | SDValue ScalarizeVectorOp(SDValue O); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 180 | |
Duncan Sands | d038e04 | 2008-07-21 10:20:31 +0000 | [diff] [blame] | 181 | /// isShuffleLegal - Return non-null if a vector shuffle is legal with the |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 182 | /// specified mask and type. Targets can specify exactly which masks they |
| 183 | /// support and the code generator is tasked with not creating illegal masks. |
| 184 | /// |
| 185 | /// Note that this will also return true for shuffles that are promoted to a |
| 186 | /// different type. |
| 187 | /// |
| 188 | /// If this is a legal shuffle, this method returns the (possibly promoted) |
| 189 | /// build_vector Mask. If it's not a legal shuffle, it returns null. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 190 | SDNode *isShuffleLegal(MVT VT, SDValue Mask) const; |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 191 | |
Chris Lattner | c9cf4f1 | 2006-07-26 23:55:56 +0000 | [diff] [blame] | 192 | bool LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, |
Chris Lattner | 00755df | 2007-02-04 00:27:56 +0000 | [diff] [blame] | 193 | SmallPtrSet<SDNode*, 32> &NodesLeadingTo); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 194 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 195 | void LegalizeSetCCOperands(SDValue &LHS, SDValue &RHS, SDValue &CC); |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 196 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 197 | SDValue ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, bool isSigned, |
| 198 | SDValue &Hi); |
| 199 | SDValue ExpandIntToFP(bool isSigned, MVT DestTy, SDValue Source); |
Chris Lattner | cad063f | 2005-07-16 00:19:57 +0000 | [diff] [blame] | 200 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 201 | SDValue EmitStackConvert(SDValue SrcOp, MVT SlotVT, MVT DestVT); |
| 202 | SDValue ExpandBUILD_VECTOR(SDNode *Node); |
| 203 | SDValue ExpandSCALAR_TO_VECTOR(SDNode *Node); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 204 | SDValue LegalizeINT_TO_FP(SDValue Result, bool isSigned, MVT DestTy, SDValue Op); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 205 | SDValue ExpandLegalINT_TO_FP(bool isSigned, SDValue LegalOp, MVT DestVT); |
| 206 | SDValue PromoteLegalINT_TO_FP(SDValue LegalOp, MVT DestVT, bool isSigned); |
| 207 | SDValue PromoteLegalFP_TO_INT(SDValue LegalOp, MVT DestVT, bool isSigned); |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 208 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 209 | SDValue ExpandBSWAP(SDValue Op); |
| 210 | SDValue ExpandBitCount(unsigned Opc, SDValue Op); |
| 211 | bool ExpandShift(unsigned Opc, SDValue Op, SDValue Amt, |
| 212 | SDValue &Lo, SDValue &Hi); |
| 213 | void ExpandShiftParts(unsigned NodeOp, SDValue Op, SDValue Amt, |
| 214 | SDValue &Lo, SDValue &Hi); |
Chris Lattner | b9fa3bc | 2005-05-12 04:49:08 +0000 | [diff] [blame] | 215 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 216 | SDValue ExpandEXTRACT_SUBVECTOR(SDValue Op); |
| 217 | SDValue ExpandEXTRACT_VECTOR_ELT(SDValue Op); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 218 | }; |
| 219 | } |
| 220 | |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 221 | /// isVectorShuffleLegal - Return true if a vector shuffle is legal with the |
| 222 | /// specified mask and type. Targets can specify exactly which masks they |
| 223 | /// support and the code generator is tasked with not creating illegal masks. |
| 224 | /// |
| 225 | /// Note that this will also return true for shuffles that are promoted to a |
| 226 | /// different type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 227 | SDNode *SelectionDAGLegalize::isShuffleLegal(MVT VT, SDValue Mask) const { |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 228 | switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE, VT)) { |
| 229 | default: return 0; |
| 230 | case TargetLowering::Legal: |
| 231 | case TargetLowering::Custom: |
| 232 | break; |
| 233 | case TargetLowering::Promote: { |
| 234 | // If this is promoted to a different type, convert the shuffle mask and |
| 235 | // ask if it is legal in the promoted type! |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 236 | MVT NVT = TLI.getTypeToPromoteTo(ISD::VECTOR_SHUFFLE, VT); |
Duncan Sands | d038e04 | 2008-07-21 10:20:31 +0000 | [diff] [blame] | 237 | MVT EltVT = NVT.getVectorElementType(); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 238 | |
| 239 | // If we changed # elements, change the shuffle mask. |
| 240 | unsigned NumEltsGrowth = |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 241 | NVT.getVectorNumElements() / VT.getVectorNumElements(); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 242 | assert(NumEltsGrowth && "Cannot promote to vector type with fewer elts!"); |
| 243 | if (NumEltsGrowth > 1) { |
| 244 | // Renumber the elements. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 245 | SmallVector<SDValue, 8> Ops; |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 246 | for (unsigned i = 0, e = Mask.getNumOperands(); i != e; ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 247 | SDValue InOp = Mask.getOperand(i); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 248 | for (unsigned j = 0; j != NumEltsGrowth; ++j) { |
| 249 | if (InOp.getOpcode() == ISD::UNDEF) |
Duncan Sands | d038e04 | 2008-07-21 10:20:31 +0000 | [diff] [blame] | 250 | Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 251 | else { |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 252 | unsigned InEltNo = cast<ConstantSDNode>(InOp)->getZExtValue(); |
Duncan Sands | d038e04 | 2008-07-21 10:20:31 +0000 | [diff] [blame] | 253 | Ops.push_back(DAG.getConstant(InEltNo*NumEltsGrowth+j, EltVT)); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 254 | } |
| 255 | } |
| 256 | } |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 257 | Mask = DAG.getNode(ISD::BUILD_VECTOR, NVT, &Ops[0], Ops.size()); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 258 | } |
| 259 | VT = NVT; |
| 260 | break; |
| 261 | } |
| 262 | } |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 263 | return TLI.isShuffleMaskLegal(Mask, VT) ? Mask.getNode() : 0; |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 264 | } |
| 265 | |
Chris Lattner | 9c32d3b | 2005-01-23 04:42:50 +0000 | [diff] [blame] | 266 | SelectionDAGLegalize::SelectionDAGLegalize(SelectionDAG &dag) |
| 267 | : TLI(dag.getTargetLoweringInfo()), DAG(dag), |
| 268 | ValueTypeActions(TLI.getValueTypeActions()) { |
Nate Begeman | 6a64861 | 2005-11-29 05:45:29 +0000 | [diff] [blame] | 269 | assert(MVT::LAST_VALUETYPE <= 32 && |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 270 | "Too many value types for ValueTypeActions to hold!"); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 271 | } |
| 272 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 273 | void SelectionDAGLegalize::LegalizeDAG() { |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 274 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 275 | IsLegalizingCall = false; |
| 276 | |
Chris Lattner | ab510a7 | 2005-10-02 17:49:46 +0000 | [diff] [blame] | 277 | // The legalize process is inherently a bottom-up recursive process (users |
| 278 | // legalize their uses before themselves). Given infinite stack space, we |
| 279 | // could just start legalizing on the root and traverse the whole graph. In |
| 280 | // practice however, this causes us to run out of stack space on large basic |
Chris Lattner | 32fca00 | 2005-10-06 01:20:27 +0000 | [diff] [blame] | 281 | // blocks. To avoid this problem, compute an ordering of the nodes where each |
| 282 | // node is only legalized after all of its operands are legalized. |
Dan Gohman | 3200d92 | 2008-08-26 21:42:18 +0000 | [diff] [blame] | 283 | std::vector<SDNode *> TopOrder; |
| 284 | unsigned N = DAG.AssignTopologicalOrder(TopOrder); |
| 285 | for (unsigned i = N; i != 0; --i) |
| 286 | HandleOp(SDValue(TopOrder[i-1], 0)); |
| 287 | TopOrder.clear(); |
Chris Lattner | 32fca00 | 2005-10-06 01:20:27 +0000 | [diff] [blame] | 288 | |
| 289 | // Finally, it's possible the root changed. Get the new root. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 290 | SDValue OldRoot = DAG.getRoot(); |
Chris Lattner | 32fca00 | 2005-10-06 01:20:27 +0000 | [diff] [blame] | 291 | assert(LegalizedNodes.count(OldRoot) && "Root didn't get legalized?"); |
| 292 | DAG.setRoot(LegalizedNodes[OldRoot]); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 293 | |
| 294 | ExpandedNodes.clear(); |
| 295 | LegalizedNodes.clear(); |
Chris Lattner | 71c42a0 | 2005-01-16 01:11:45 +0000 | [diff] [blame] | 296 | PromotedNodes.clear(); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 297 | SplitNodes.clear(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 298 | ScalarizedNodes.clear(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 299 | |
| 300 | // Remove dead nodes now. |
Chris Lattner | 190a418 | 2006-08-04 17:45:20 +0000 | [diff] [blame] | 301 | DAG.RemoveDeadNodes(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 302 | } |
| 303 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 304 | |
| 305 | /// FindCallEndFromCallStart - Given a chained node that is part of a call |
| 306 | /// sequence, find the CALLSEQ_END node that terminates the call sequence. |
| 307 | static SDNode *FindCallEndFromCallStart(SDNode *Node) { |
| 308 | if (Node->getOpcode() == ISD::CALLSEQ_END) |
| 309 | return Node; |
| 310 | if (Node->use_empty()) |
| 311 | return 0; // No CallSeqEnd |
| 312 | |
| 313 | // The chain is usually at the end. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 314 | SDValue TheChain(Node, Node->getNumValues()-1); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 315 | if (TheChain.getValueType() != MVT::Other) { |
| 316 | // Sometimes it's at the beginning. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 317 | TheChain = SDValue(Node, 0); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 318 | if (TheChain.getValueType() != MVT::Other) { |
| 319 | // Otherwise, hunt for it. |
| 320 | for (unsigned i = 1, e = Node->getNumValues(); i != e; ++i) |
| 321 | if (Node->getValueType(i) == MVT::Other) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 322 | TheChain = SDValue(Node, i); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 323 | break; |
| 324 | } |
| 325 | |
| 326 | // Otherwise, we walked into a node without a chain. |
| 327 | if (TheChain.getValueType() != MVT::Other) |
| 328 | return 0; |
| 329 | } |
| 330 | } |
| 331 | |
| 332 | for (SDNode::use_iterator UI = Node->use_begin(), |
| 333 | E = Node->use_end(); UI != E; ++UI) { |
| 334 | |
| 335 | // Make sure to only follow users of our token chain. |
Dan Gohman | 8968450 | 2008-07-27 20:43:25 +0000 | [diff] [blame] | 336 | SDNode *User = *UI; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 337 | for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i) |
| 338 | if (User->getOperand(i) == TheChain) |
| 339 | if (SDNode *Result = FindCallEndFromCallStart(User)) |
| 340 | return Result; |
| 341 | } |
| 342 | return 0; |
| 343 | } |
| 344 | |
| 345 | /// FindCallStartFromCallEnd - Given a chained node that is part of a call |
| 346 | /// sequence, find the CALLSEQ_START node that initiates the call sequence. |
| 347 | static SDNode *FindCallStartFromCallEnd(SDNode *Node) { |
| 348 | assert(Node && "Didn't find callseq_start for a call??"); |
| 349 | if (Node->getOpcode() == ISD::CALLSEQ_START) return Node; |
| 350 | |
| 351 | assert(Node->getOperand(0).getValueType() == MVT::Other && |
| 352 | "Node doesn't have a token chain argument!"); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 353 | return FindCallStartFromCallEnd(Node->getOperand(0).getNode()); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 354 | } |
| 355 | |
| 356 | /// LegalizeAllNodesNotLeadingTo - Recursively walk the uses of N, looking to |
| 357 | /// see if any uses can reach Dest. If no dest operands can get to dest, |
| 358 | /// legalize them, legalize ourself, and return false, otherwise, return true. |
Chris Lattner | c9cf4f1 | 2006-07-26 23:55:56 +0000 | [diff] [blame] | 359 | /// |
| 360 | /// Keep track of the nodes we fine that actually do lead to Dest in |
| 361 | /// NodesLeadingTo. This avoids retraversing them exponential number of times. |
| 362 | /// |
| 363 | bool SelectionDAGLegalize::LegalizeAllNodesNotLeadingTo(SDNode *N, SDNode *Dest, |
Chris Lattner | 00755df | 2007-02-04 00:27:56 +0000 | [diff] [blame] | 364 | SmallPtrSet<SDNode*, 32> &NodesLeadingTo) { |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 365 | if (N == Dest) return true; // N certainly leads to Dest :) |
| 366 | |
Chris Lattner | c9cf4f1 | 2006-07-26 23:55:56 +0000 | [diff] [blame] | 367 | // If we've already processed this node and it does lead to Dest, there is no |
| 368 | // need to reprocess it. |
| 369 | if (NodesLeadingTo.count(N)) return true; |
| 370 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 371 | // If the first result of this node has been already legalized, then it cannot |
| 372 | // reach N. |
| 373 | switch (getTypeAction(N->getValueType(0))) { |
| 374 | case Legal: |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 375 | if (LegalizedNodes.count(SDValue(N, 0))) return false; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 376 | break; |
| 377 | case Promote: |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 378 | if (PromotedNodes.count(SDValue(N, 0))) return false; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 379 | break; |
| 380 | case Expand: |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 381 | if (ExpandedNodes.count(SDValue(N, 0))) return false; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 382 | break; |
| 383 | } |
| 384 | |
| 385 | // Okay, this node has not already been legalized. Check and legalize all |
| 386 | // operands. If none lead to Dest, then we can legalize this node. |
| 387 | bool OperandsLeadToDest = false; |
| 388 | for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) |
| 389 | OperandsLeadToDest |= // If an operand leads to Dest, so do we. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 390 | LegalizeAllNodesNotLeadingTo(N->getOperand(i).getNode(), Dest, NodesLeadingTo); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 391 | |
Chris Lattner | c9cf4f1 | 2006-07-26 23:55:56 +0000 | [diff] [blame] | 392 | if (OperandsLeadToDest) { |
| 393 | NodesLeadingTo.insert(N); |
| 394 | return true; |
| 395 | } |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 396 | |
| 397 | // Okay, this node looks safe, legalize it and return false. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 398 | HandleOp(SDValue(N, 0)); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 399 | return false; |
| 400 | } |
| 401 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 402 | /// HandleOp - Legalize, Promote, or Expand the specified operand as |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 403 | /// appropriate for its type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 404 | void SelectionDAGLegalize::HandleOp(SDValue Op) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 405 | MVT VT = Op.getValueType(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 406 | switch (getTypeAction(VT)) { |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 407 | default: assert(0 && "Bad type action!"); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 408 | case Legal: (void)LegalizeOp(Op); break; |
| 409 | case Promote: (void)PromoteOp(Op); break; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 410 | case Expand: |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 411 | if (!VT.isVector()) { |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 412 | // If this is an illegal scalar, expand it into its two component |
| 413 | // pieces. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 414 | SDValue X, Y; |
Chris Lattner | 09ec1b0 | 2007-08-25 01:00:22 +0000 | [diff] [blame] | 415 | if (Op.getOpcode() == ISD::TargetConstant) |
| 416 | break; // Allow illegal target nodes. |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 417 | ExpandOp(Op, X, Y); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 418 | } else if (VT.getVectorNumElements() == 1) { |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 419 | // If this is an illegal single element vector, convert it to a |
| 420 | // scalar operation. |
| 421 | (void)ScalarizeVectorOp(Op); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 422 | } else { |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 423 | // Otherwise, this is an illegal multiple element vector. |
| 424 | // Split it in half and legalize both parts. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 425 | SDValue X, Y; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 426 | SplitVectorOp(Op, X, Y); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 427 | } |
| 428 | break; |
| 429 | } |
| 430 | } |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 431 | |
Evan Cheng | 9f87788 | 2006-12-13 20:57:08 +0000 | [diff] [blame] | 432 | /// ExpandConstantFP - Expands the ConstantFP node to an integer constant or |
| 433 | /// a load from the constant pool. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 434 | static SDValue ExpandConstantFP(ConstantFPSDNode *CFP, bool UseCP, |
Evan Cheng | 279101e | 2006-12-12 22:19:28 +0000 | [diff] [blame] | 435 | SelectionDAG &DAG, TargetLowering &TLI) { |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 436 | bool Extend = false; |
| 437 | |
| 438 | // If a FP immediate is precise when represented as a float and if the |
| 439 | // target can do an extending load from float to double, we put it into |
| 440 | // the constant pool as a float, even if it's is statically typed as a |
Chris Lattner | aa2acbb | 2008-03-05 06:46:58 +0000 | [diff] [blame] | 441 | // double. This shrinks FP constants and canonicalizes them for targets where |
| 442 | // an FP extending load is the same cost as a normal load (such as on the x87 |
| 443 | // fp stack or PPC FP unit). |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 444 | MVT VT = CFP->getValueType(0); |
Dan Gohman | 4fbd796 | 2008-09-12 18:08:03 +0000 | [diff] [blame] | 445 | ConstantFP *LLVMC = const_cast<ConstantFP*>(CFP->getConstantFPValue()); |
Evan Cheng | 9f87788 | 2006-12-13 20:57:08 +0000 | [diff] [blame] | 446 | if (!UseCP) { |
Dale Johannesen | 9e3d3ab | 2007-09-14 22:26:36 +0000 | [diff] [blame] | 447 | if (VT!=MVT::f64 && VT!=MVT::f32) |
| 448 | assert(0 && "Invalid type expansion"); |
Dan Gohman | 6cf9b8a | 2008-03-11 00:11:06 +0000 | [diff] [blame] | 449 | return DAG.getConstant(LLVMC->getValueAPF().convertToAPInt(), |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 450 | (VT == MVT::f64) ? MVT::i64 : MVT::i32); |
Evan Cheng | 279101e | 2006-12-12 22:19:28 +0000 | [diff] [blame] | 451 | } |
| 452 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 453 | MVT OrigVT = VT; |
| 454 | MVT SVT = VT; |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 455 | while (SVT != MVT::f32) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 456 | SVT = (MVT::SimpleValueType)(SVT.getSimpleVT() - 1); |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 457 | if (CFP->isValueValidForType(SVT, CFP->getValueAPF()) && |
| 458 | // Only do this if the target has a native EXTLOAD instruction from |
| 459 | // smaller type. |
Evan Cheng | 6fd599f | 2008-03-05 01:30:59 +0000 | [diff] [blame] | 460 | TLI.isLoadXLegal(ISD::EXTLOAD, SVT) && |
Chris Lattner | aa2acbb | 2008-03-05 06:46:58 +0000 | [diff] [blame] | 461 | TLI.ShouldShrinkFPConstant(OrigVT)) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 462 | const Type *SType = SVT.getTypeForMVT(); |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 463 | LLVMC = cast<ConstantFP>(ConstantExpr::getFPTrunc(LLVMC, SType)); |
| 464 | VT = SVT; |
| 465 | Extend = true; |
| 466 | } |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 467 | } |
| 468 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 469 | SDValue CPIdx = DAG.getConstantPool(LLVMC, TLI.getPointerTy()); |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 470 | unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 471 | if (Extend) |
| 472 | return DAG.getExtLoad(ISD::EXTLOAD, OrigVT, DAG.getEntryNode(), |
Dan Gohman | 3069b87 | 2008-02-07 18:41:25 +0000 | [diff] [blame] | 473 | CPIdx, PseudoSourceValue::getConstantPool(), |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 474 | 0, VT, false, Alignment); |
Evan Cheng | ef12057 | 2008-03-04 08:05:30 +0000 | [diff] [blame] | 475 | return DAG.getLoad(OrigVT, DAG.getEntryNode(), CPIdx, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 476 | PseudoSourceValue::getConstantPool(), 0, false, Alignment); |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 477 | } |
| 478 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 479 | |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 480 | /// ExpandFCOPYSIGNToBitwiseOps - Expands fcopysign to a series of bitwise |
| 481 | /// operations. |
| 482 | static |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 483 | SDValue ExpandFCOPYSIGNToBitwiseOps(SDNode *Node, MVT NVT, |
| 484 | SelectionDAG &DAG, TargetLowering &TLI) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 485 | MVT VT = Node->getValueType(0); |
| 486 | MVT SrcVT = Node->getOperand(1).getValueType(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 487 | assert((SrcVT == MVT::f32 || SrcVT == MVT::f64) && |
| 488 | "fcopysign expansion only supported for f32 and f64"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 489 | MVT SrcNVT = (SrcVT == MVT::f64) ? MVT::i64 : MVT::i32; |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 490 | |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 491 | // First get the sign bit of second operand. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 492 | SDValue Mask1 = (SrcVT == MVT::f64) |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 493 | ? DAG.getConstantFP(BitsToDouble(1ULL << 63), SrcVT) |
| 494 | : DAG.getConstantFP(BitsToFloat(1U << 31), SrcVT); |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 495 | Mask1 = DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Mask1); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 496 | SDValue SignBit= DAG.getNode(ISD::BIT_CONVERT, SrcNVT, Node->getOperand(1)); |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 497 | SignBit = DAG.getNode(ISD::AND, SrcNVT, SignBit, Mask1); |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 498 | // Shift right or sign-extend it if the two operands have different types. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 499 | int SizeDiff = SrcNVT.getSizeInBits() - NVT.getSizeInBits(); |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 500 | if (SizeDiff > 0) { |
| 501 | SignBit = DAG.getNode(ISD::SRL, SrcNVT, SignBit, |
| 502 | DAG.getConstant(SizeDiff, TLI.getShiftAmountTy())); |
| 503 | SignBit = DAG.getNode(ISD::TRUNCATE, NVT, SignBit); |
Chris Lattner | c563e1d | 2008-07-10 23:46:13 +0000 | [diff] [blame] | 504 | } else if (SizeDiff < 0) { |
| 505 | SignBit = DAG.getNode(ISD::ZERO_EXTEND, NVT, SignBit); |
| 506 | SignBit = DAG.getNode(ISD::SHL, NVT, SignBit, |
| 507 | DAG.getConstant(-SizeDiff, TLI.getShiftAmountTy())); |
| 508 | } |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 509 | |
| 510 | // Clear the sign bit of first operand. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 511 | SDValue Mask2 = (VT == MVT::f64) |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 512 | ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) |
| 513 | : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); |
| 514 | Mask2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask2); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 515 | SDValue Result = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); |
Evan Cheng | 068c5f4 | 2007-01-05 21:31:51 +0000 | [diff] [blame] | 516 | Result = DAG.getNode(ISD::AND, NVT, Result, Mask2); |
| 517 | |
| 518 | // Or the value with the sign bit. |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 519 | Result = DAG.getNode(ISD::OR, NVT, Result, SignBit); |
| 520 | return Result; |
| 521 | } |
| 522 | |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 523 | /// ExpandUnalignedStore - Expands an unaligned store to 2 half-size stores. |
| 524 | static |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 525 | SDValue ExpandUnalignedStore(StoreSDNode *ST, SelectionDAG &DAG, |
| 526 | TargetLowering &TLI) { |
| 527 | SDValue Chain = ST->getChain(); |
| 528 | SDValue Ptr = ST->getBasePtr(); |
| 529 | SDValue Val = ST->getValue(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 530 | MVT VT = Val.getValueType(); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 531 | int Alignment = ST->getAlignment(); |
| 532 | int SVOffset = ST->getSrcValueOffset(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 533 | if (ST->getMemoryVT().isFloatingPoint() || |
| 534 | ST->getMemoryVT().isVector()) { |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 535 | // Expand to a bitconvert of the value to the integer type of the |
| 536 | // same size, then a (misaligned) int store. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 537 | MVT intVT; |
| 538 | if (VT.is128BitVector() || VT == MVT::ppcf128 || VT == MVT::f128) |
Dale Johannesen | 8155d64 | 2008-02-27 22:36:00 +0000 | [diff] [blame] | 539 | intVT = MVT::i128; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 540 | else if (VT.is64BitVector() || VT==MVT::f64) |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 541 | intVT = MVT::i64; |
| 542 | else if (VT==MVT::f32) |
| 543 | intVT = MVT::i32; |
| 544 | else |
Dale Johannesen | cd9f174 | 2008-02-28 18:36:51 +0000 | [diff] [blame] | 545 | assert(0 && "Unaligned store of unsupported type"); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 546 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 547 | SDValue Result = DAG.getNode(ISD::BIT_CONVERT, intVT, Val); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 548 | return DAG.getStore(Chain, Result, Ptr, ST->getSrcValue(), |
| 549 | SVOffset, ST->isVolatile(), Alignment); |
| 550 | } |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 551 | assert(ST->getMemoryVT().isInteger() && |
| 552 | !ST->getMemoryVT().isVector() && |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 553 | "Unaligned store of unknown type."); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 554 | // Get the half-size VT |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 555 | MVT NewStoredVT = |
| 556 | (MVT::SimpleValueType)(ST->getMemoryVT().getSimpleVT() - 1); |
| 557 | int NumBits = NewStoredVT.getSizeInBits(); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 558 | int IncrementSize = NumBits / 8; |
| 559 | |
| 560 | // Divide the stored value in two parts. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 561 | SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); |
| 562 | SDValue Lo = Val; |
| 563 | SDValue Hi = DAG.getNode(ISD::SRL, VT, Val, ShiftAmount); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 564 | |
| 565 | // Store the two parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 566 | SDValue Store1, Store2; |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 567 | Store1 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Lo:Hi, Ptr, |
| 568 | ST->getSrcValue(), SVOffset, NewStoredVT, |
| 569 | ST->isVolatile(), Alignment); |
| 570 | Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, |
| 571 | DAG.getConstant(IncrementSize, TLI.getPointerTy())); |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 572 | Alignment = MinAlign(Alignment, IncrementSize); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 573 | Store2 = DAG.getTruncStore(Chain, TLI.isLittleEndian()?Hi:Lo, Ptr, |
| 574 | ST->getSrcValue(), SVOffset + IncrementSize, |
| 575 | NewStoredVT, ST->isVolatile(), Alignment); |
| 576 | |
| 577 | return DAG.getNode(ISD::TokenFactor, MVT::Other, Store1, Store2); |
| 578 | } |
| 579 | |
| 580 | /// ExpandUnalignedLoad - Expands an unaligned load to 2 half-size loads. |
| 581 | static |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 582 | SDValue ExpandUnalignedLoad(LoadSDNode *LD, SelectionDAG &DAG, |
| 583 | TargetLowering &TLI) { |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 584 | int SVOffset = LD->getSrcValueOffset(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 585 | SDValue Chain = LD->getChain(); |
| 586 | SDValue Ptr = LD->getBasePtr(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 587 | MVT VT = LD->getValueType(0); |
| 588 | MVT LoadedVT = LD->getMemoryVT(); |
| 589 | if (VT.isFloatingPoint() || VT.isVector()) { |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 590 | // Expand to a (misaligned) integer load of the same size, |
Dale Johannesen | 8155d64 | 2008-02-27 22:36:00 +0000 | [diff] [blame] | 591 | // then bitconvert to floating point or vector. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 592 | MVT intVT; |
| 593 | if (LoadedVT.is128BitVector() || |
Dale Johannesen | 3c8b59c | 2008-03-01 03:40:57 +0000 | [diff] [blame] | 594 | LoadedVT == MVT::ppcf128 || LoadedVT == MVT::f128) |
Dale Johannesen | 8155d64 | 2008-02-27 22:36:00 +0000 | [diff] [blame] | 595 | intVT = MVT::i128; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 596 | else if (LoadedVT.is64BitVector() || LoadedVT == MVT::f64) |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 597 | intVT = MVT::i64; |
Chris Lattner | e400af8 | 2007-11-19 21:38:03 +0000 | [diff] [blame] | 598 | else if (LoadedVT == MVT::f32) |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 599 | intVT = MVT::i32; |
| 600 | else |
Dale Johannesen | 8155d64 | 2008-02-27 22:36:00 +0000 | [diff] [blame] | 601 | assert(0 && "Unaligned load of unsupported type"); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 602 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 603 | SDValue newLoad = DAG.getLoad(intVT, Chain, Ptr, LD->getSrcValue(), |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 604 | SVOffset, LD->isVolatile(), |
| 605 | LD->getAlignment()); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 606 | SDValue Result = DAG.getNode(ISD::BIT_CONVERT, LoadedVT, newLoad); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 607 | if (VT.isFloatingPoint() && LoadedVT != VT) |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 608 | Result = DAG.getNode(ISD::FP_EXTEND, VT, Result); |
| 609 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 610 | SDValue Ops[] = { Result, Chain }; |
Duncan Sands | 4bdcb61 | 2008-07-02 17:40:58 +0000 | [diff] [blame] | 611 | return DAG.getMergeValues(Ops, 2); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 612 | } |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 613 | assert(LoadedVT.isInteger() && !LoadedVT.isVector() && |
Chris Lattner | e400af8 | 2007-11-19 21:38:03 +0000 | [diff] [blame] | 614 | "Unaligned load of unsupported type."); |
| 615 | |
Dale Johannesen | 8155d64 | 2008-02-27 22:36:00 +0000 | [diff] [blame] | 616 | // Compute the new VT that is half the size of the old one. This is an |
| 617 | // integer MVT. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 618 | unsigned NumBits = LoadedVT.getSizeInBits(); |
| 619 | MVT NewLoadedVT; |
| 620 | NewLoadedVT = MVT::getIntegerVT(NumBits/2); |
Chris Lattner | e400af8 | 2007-11-19 21:38:03 +0000 | [diff] [blame] | 621 | NumBits >>= 1; |
| 622 | |
| 623 | unsigned Alignment = LD->getAlignment(); |
| 624 | unsigned IncrementSize = NumBits / 8; |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 625 | ISD::LoadExtType HiExtType = LD->getExtensionType(); |
| 626 | |
| 627 | // If the original load is NON_EXTLOAD, the hi part load must be ZEXTLOAD. |
| 628 | if (HiExtType == ISD::NON_EXTLOAD) |
| 629 | HiExtType = ISD::ZEXTLOAD; |
| 630 | |
| 631 | // Load the value in two parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 632 | SDValue Lo, Hi; |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 633 | if (TLI.isLittleEndian()) { |
| 634 | Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), |
| 635 | SVOffset, NewLoadedVT, LD->isVolatile(), Alignment); |
| 636 | Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, |
| 637 | DAG.getConstant(IncrementSize, TLI.getPointerTy())); |
| 638 | Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), |
| 639 | SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 640 | MinAlign(Alignment, IncrementSize)); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 641 | } else { |
| 642 | Hi = DAG.getExtLoad(HiExtType, VT, Chain, Ptr, LD->getSrcValue(), SVOffset, |
| 643 | NewLoadedVT,LD->isVolatile(), Alignment); |
| 644 | Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, |
| 645 | DAG.getConstant(IncrementSize, TLI.getPointerTy())); |
| 646 | Lo = DAG.getExtLoad(ISD::ZEXTLOAD, VT, Chain, Ptr, LD->getSrcValue(), |
| 647 | SVOffset + IncrementSize, NewLoadedVT, LD->isVolatile(), |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 648 | MinAlign(Alignment, IncrementSize)); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 649 | } |
| 650 | |
| 651 | // aggregate the two parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 652 | SDValue ShiftAmount = DAG.getConstant(NumBits, TLI.getShiftAmountTy()); |
| 653 | SDValue Result = DAG.getNode(ISD::SHL, VT, Hi, ShiftAmount); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 654 | Result = DAG.getNode(ISD::OR, VT, Result, Lo); |
| 655 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 656 | SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 657 | Hi.getValue(1)); |
| 658 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 659 | SDValue Ops[] = { Result, TF }; |
Duncan Sands | 4bdcb61 | 2008-07-02 17:40:58 +0000 | [diff] [blame] | 660 | return DAG.getMergeValues(Ops, 2); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 661 | } |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 662 | |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 663 | /// UnrollVectorOp - We know that the given vector has a legal type, however |
| 664 | /// the operation it performs is not legal and is an operation that we have |
| 665 | /// no way of lowering. "Unroll" the vector, splitting out the scalars and |
| 666 | /// operating on each element individually. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 667 | SDValue SelectionDAGLegalize::UnrollVectorOp(SDValue Op) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 668 | MVT VT = Op.getValueType(); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 669 | assert(isTypeLegal(VT) && |
| 670 | "Caller should expand or promote operands that are not legal!"); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 671 | assert(Op.getNode()->getNumValues() == 1 && |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 672 | "Can't unroll a vector with multiple results!"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 673 | unsigned NE = VT.getVectorNumElements(); |
| 674 | MVT EltVT = VT.getVectorElementType(); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 675 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 676 | SmallVector<SDValue, 8> Scalars; |
| 677 | SmallVector<SDValue, 4> Operands(Op.getNumOperands()); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 678 | for (unsigned i = 0; i != NE; ++i) { |
| 679 | for (unsigned j = 0; j != Op.getNumOperands(); ++j) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 680 | SDValue Operand = Op.getOperand(j); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 681 | MVT OperandVT = Operand.getValueType(); |
| 682 | if (OperandVT.isVector()) { |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 683 | // A vector operand; extract a single element. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 684 | MVT OperandEltVT = OperandVT.getVectorElementType(); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 685 | Operands[j] = DAG.getNode(ISD::EXTRACT_VECTOR_ELT, |
| 686 | OperandEltVT, |
| 687 | Operand, |
| 688 | DAG.getConstant(i, MVT::i32)); |
| 689 | } else { |
| 690 | // A scalar operand; just use it as is. |
| 691 | Operands[j] = Operand; |
| 692 | } |
| 693 | } |
| 694 | Scalars.push_back(DAG.getNode(Op.getOpcode(), EltVT, |
| 695 | &Operands[0], Operands.size())); |
| 696 | } |
| 697 | |
| 698 | return DAG.getNode(ISD::BUILD_VECTOR, VT, &Scalars[0], Scalars.size()); |
| 699 | } |
| 700 | |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 701 | /// GetFPLibCall - Return the right libcall for the given floating point type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 702 | static RTLIB::Libcall GetFPLibCall(MVT VT, |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 703 | RTLIB::Libcall Call_F32, |
| 704 | RTLIB::Libcall Call_F64, |
| 705 | RTLIB::Libcall Call_F80, |
| 706 | RTLIB::Libcall Call_PPCF128) { |
| 707 | return |
| 708 | VT == MVT::f32 ? Call_F32 : |
| 709 | VT == MVT::f64 ? Call_F64 : |
| 710 | VT == MVT::f80 ? Call_F80 : |
| 711 | VT == MVT::ppcf128 ? Call_PPCF128 : |
| 712 | RTLIB::UNKNOWN_LIBCALL; |
| 713 | } |
| 714 | |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 715 | /// PerformInsertVectorEltInMemory - Some target cannot handle a variable |
| 716 | /// insertion index for the INSERT_VECTOR_ELT instruction. In this case, it |
| 717 | /// is necessary to spill the vector being inserted into to memory, perform |
| 718 | /// the insert there, and then read the result back. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 719 | SDValue SelectionDAGLegalize:: |
| 720 | PerformInsertVectorEltInMemory(SDValue Vec, SDValue Val, SDValue Idx) { |
| 721 | SDValue Tmp1 = Vec; |
| 722 | SDValue Tmp2 = Val; |
| 723 | SDValue Tmp3 = Idx; |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 724 | |
| 725 | // If the target doesn't support this, we have to spill the input vector |
| 726 | // to a temporary stack slot, update the element, then reload it. This is |
| 727 | // badness. We could also load the value into a vector register (either |
| 728 | // with a "move to register" or "extload into register" instruction, then |
| 729 | // permute it into place, if the idx is a constant and if the idx is |
| 730 | // supported by the target. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 731 | MVT VT = Tmp1.getValueType(); |
| 732 | MVT EltVT = VT.getVectorElementType(); |
| 733 | MVT IdxVT = Tmp3.getValueType(); |
| 734 | MVT PtrVT = TLI.getPointerTy(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 735 | SDValue StackPtr = DAG.CreateStackTemporary(VT); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 736 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 737 | int SPFI = cast<FrameIndexSDNode>(StackPtr.getNode())->getIndex(); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 738 | |
| 739 | // Store the vector. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 740 | SDValue Ch = DAG.getStore(DAG.getEntryNode(), Tmp1, StackPtr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 741 | PseudoSourceValue::getFixedStack(SPFI), 0); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 742 | |
| 743 | // Truncate or zero extend offset to target pointer type. |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 744 | unsigned CastOpc = IdxVT.bitsGT(PtrVT) ? ISD::TRUNCATE : ISD::ZERO_EXTEND; |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 745 | Tmp3 = DAG.getNode(CastOpc, PtrVT, Tmp3); |
| 746 | // Add the offset to the index. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 747 | unsigned EltSize = EltVT.getSizeInBits()/8; |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 748 | Tmp3 = DAG.getNode(ISD::MUL, IdxVT, Tmp3,DAG.getConstant(EltSize, IdxVT)); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 749 | SDValue StackPtr2 = DAG.getNode(ISD::ADD, IdxVT, Tmp3, StackPtr); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 750 | // Store the scalar value. |
| 751 | Ch = DAG.getTruncStore(Ch, Tmp2, StackPtr2, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 752 | PseudoSourceValue::getFixedStack(SPFI), 0, EltVT); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 753 | // Load the updated vector. |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 754 | return DAG.getLoad(VT, Ch, StackPtr, |
| 755 | PseudoSourceValue::getFixedStack(SPFI), 0); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 756 | } |
| 757 | |
Dan Gohman | a346615 | 2007-07-13 20:14:11 +0000 | [diff] [blame] | 758 | /// LegalizeOp - We know that the specified value has a legal type, and |
| 759 | /// that its operands are legal. Now ensure that the operation itself |
| 760 | /// is legal, recursively ensuring that the operands' operations remain |
| 761 | /// legal. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 762 | SDValue SelectionDAGLegalize::LegalizeOp(SDValue Op) { |
Chris Lattner | 09ec1b0 | 2007-08-25 01:00:22 +0000 | [diff] [blame] | 763 | if (Op.getOpcode() == ISD::TargetConstant) // Allow illegal target nodes. |
| 764 | return Op; |
| 765 | |
Chris Lattner | c9c60f6 | 2005-08-24 16:35:28 +0000 | [diff] [blame] | 766 | assert(isTypeLegal(Op.getValueType()) && |
Chris Lattner | e3304a3 | 2005-01-08 20:35:13 +0000 | [diff] [blame] | 767 | "Caller should expand or promote operands that are not legal!"); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 768 | SDNode *Node = Op.getNode(); |
Chris Lattner | e3304a3 | 2005-01-08 20:35:13 +0000 | [diff] [blame] | 769 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 770 | // If this operation defines any values that cannot be represented in a |
Chris Lattner | e3304a3 | 2005-01-08 20:35:13 +0000 | [diff] [blame] | 771 | // register on this target, make sure to expand or promote them. |
Chris Lattner | 45982da | 2005-05-12 16:53:42 +0000 | [diff] [blame] | 772 | if (Node->getNumValues() > 1) { |
| 773 | for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 774 | if (getTypeAction(Node->getValueType(i)) != Legal) { |
| 775 | HandleOp(Op.getValue(i)); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 776 | assert(LegalizedNodes.count(Op) && |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 777 | "Handling didn't add legal operands!"); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 778 | return LegalizedNodes[Op]; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 779 | } |
| 780 | } |
| 781 | |
Chris Lattner | 45982da | 2005-05-12 16:53:42 +0000 | [diff] [blame] | 782 | // Note that LegalizeOp may be reentered even from single-use nodes, which |
| 783 | // means that we always must cache transformed nodes. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 784 | DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); |
Chris Lattner | e1bd822 | 2005-01-11 05:57:22 +0000 | [diff] [blame] | 785 | if (I != LegalizedNodes.end()) return I->second; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 786 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 787 | SDValue Tmp1, Tmp2, Tmp3, Tmp4; |
| 788 | SDValue Result = Op; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 789 | bool isCustom = false; |
| 790 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 791 | switch (Node->getOpcode()) { |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 792 | case ISD::FrameIndex: |
| 793 | case ISD::EntryToken: |
| 794 | case ISD::Register: |
| 795 | case ISD::BasicBlock: |
| 796 | case ISD::TargetFrameIndex: |
Nate Begeman | 37efe67 | 2006-04-22 18:53:45 +0000 | [diff] [blame] | 797 | case ISD::TargetJumpTable: |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 798 | case ISD::TargetConstant: |
Chris Lattner | 3181a77 | 2006-01-29 06:26:56 +0000 | [diff] [blame] | 799 | case ISD::TargetConstantFP: |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 800 | case ISD::TargetConstantPool: |
| 801 | case ISD::TargetGlobalAddress: |
Lauro Ramos Venancio | b3a0417 | 2007-04-20 21:38:10 +0000 | [diff] [blame] | 802 | case ISD::TargetGlobalTLSAddress: |
Bill Wendling | 056292f | 2008-09-16 21:48:12 +0000 | [diff] [blame] | 803 | case ISD::TargetExternalSymbol: |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 804 | case ISD::VALUETYPE: |
| 805 | case ISD::SRCVALUE: |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 806 | case ISD::MEMOPERAND: |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 807 | case ISD::CONDCODE: |
Duncan Sands | 276dcbd | 2008-03-21 09:14:45 +0000 | [diff] [blame] | 808 | case ISD::ARG_FLAGS: |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 809 | // Primitives must all be legal. |
Duncan Sands | a7c97a7 | 2007-10-16 09:07:20 +0000 | [diff] [blame] | 810 | assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 811 | "This must be legal!"); |
| 812 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 813 | default: |
Chris Lattner | d73cc5d | 2005-05-14 06:34:48 +0000 | [diff] [blame] | 814 | if (Node->getOpcode() >= ISD::BUILTIN_OP_END) { |
| 815 | // If this is a target node, legalize it by legalizing the operands then |
| 816 | // passing it through. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 817 | SmallVector<SDValue, 8> Ops; |
Chris Lattner | c5d7d7c | 2006-05-17 18:00:08 +0000 | [diff] [blame] | 818 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) |
Chris Lattner | d73cc5d | 2005-05-14 06:34:48 +0000 | [diff] [blame] | 819 | Ops.push_back(LegalizeOp(Node->getOperand(i))); |
Chris Lattner | c5d7d7c | 2006-05-17 18:00:08 +0000 | [diff] [blame] | 820 | |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 821 | Result = DAG.UpdateNodeOperands(Result.getValue(0), &Ops[0], Ops.size()); |
Chris Lattner | d73cc5d | 2005-05-14 06:34:48 +0000 | [diff] [blame] | 822 | |
| 823 | for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) |
| 824 | AddLegalizedOperand(Op.getValue(i), Result.getValue(i)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 825 | return Result.getValue(Op.getResNo()); |
Chris Lattner | d73cc5d | 2005-05-14 06:34:48 +0000 | [diff] [blame] | 826 | } |
| 827 | // Otherwise this is an unhandled builtin node. splat. |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 828 | #ifndef NDEBUG |
Dan Gohman | 3983358 | 2007-06-04 16:17:33 +0000 | [diff] [blame] | 829 | cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 830 | #endif |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 831 | assert(0 && "Do not know how to legalize this operator!"); |
| 832 | abort(); |
Lauro Ramos Venancio | 0d3b678 | 2007-04-20 23:02:39 +0000 | [diff] [blame] | 833 | case ISD::GLOBAL_OFFSET_TABLE: |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 834 | case ISD::GlobalAddress: |
Lauro Ramos Venancio | b3a0417 | 2007-04-20 21:38:10 +0000 | [diff] [blame] | 835 | case ISD::GlobalTLSAddress: |
Bill Wendling | 056292f | 2008-09-16 21:48:12 +0000 | [diff] [blame] | 836 | case ISD::ExternalSymbol: |
Nate Begeman | 37efe67 | 2006-04-22 18:53:45 +0000 | [diff] [blame] | 837 | case ISD::ConstantPool: |
| 838 | case ISD::JumpTable: // Nothing to do. |
Chris Lattner | 0c8fbe3 | 2005-11-17 06:41:44 +0000 | [diff] [blame] | 839 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
| 840 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 841 | case TargetLowering::Custom: |
| 842 | Tmp1 = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 843 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 948c1b1 | 2006-01-28 08:31:04 +0000 | [diff] [blame] | 844 | // FALLTHROUGH if the target doesn't want to lower this op after all. |
Chris Lattner | 0c8fbe3 | 2005-11-17 06:41:44 +0000 | [diff] [blame] | 845 | case TargetLowering::Legal: |
Chris Lattner | 0c8fbe3 | 2005-11-17 06:41:44 +0000 | [diff] [blame] | 846 | break; |
| 847 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 848 | break; |
Nate Begeman | bcc5f36 | 2007-01-29 22:58:52 +0000 | [diff] [blame] | 849 | case ISD::FRAMEADDR: |
| 850 | case ISD::RETURNADDR: |
| 851 | // The only option for these nodes is to custom lower them. If the target |
| 852 | // does not custom lower them, then return zero. |
| 853 | Tmp1 = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 854 | if (Tmp1.getNode()) |
Nate Begeman | bcc5f36 | 2007-01-29 22:58:52 +0000 | [diff] [blame] | 855 | Result = Tmp1; |
| 856 | else |
| 857 | Result = DAG.getConstant(0, TLI.getPointerTy()); |
| 858 | break; |
Anton Korobeynikov | 055c544 | 2007-08-29 23:18:48 +0000 | [diff] [blame] | 859 | case ISD::FRAME_TO_ARGS_OFFSET: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 860 | MVT VT = Node->getValueType(0); |
Anton Korobeynikov | 066f7b4 | 2007-08-29 19:28:29 +0000 | [diff] [blame] | 861 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 862 | default: assert(0 && "This action is not supported yet!"); |
| 863 | case TargetLowering::Custom: |
| 864 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 865 | if (Result.getNode()) break; |
Anton Korobeynikov | 066f7b4 | 2007-08-29 19:28:29 +0000 | [diff] [blame] | 866 | // Fall Thru |
| 867 | case TargetLowering::Legal: |
| 868 | Result = DAG.getConstant(0, VT); |
| 869 | break; |
| 870 | } |
Anton Korobeynikov | 055c544 | 2007-08-29 23:18:48 +0000 | [diff] [blame] | 871 | } |
Anton Korobeynikov | 066f7b4 | 2007-08-29 19:28:29 +0000 | [diff] [blame] | 872 | break; |
Jim Laskey | 2bc210d | 2007-02-22 15:37:19 +0000 | [diff] [blame] | 873 | case ISD::EXCEPTIONADDR: { |
| 874 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 875 | MVT VT = Node->getValueType(0); |
Jim Laskey | 2bc210d | 2007-02-22 15:37:19 +0000 | [diff] [blame] | 876 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 877 | default: assert(0 && "This action is not supported yet!"); |
| 878 | case TargetLowering::Expand: { |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 879 | unsigned Reg = TLI.getExceptionAddressRegister(); |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 880 | Result = DAG.getCopyFromReg(Tmp1, Reg, VT); |
Jim Laskey | 2bc210d | 2007-02-22 15:37:19 +0000 | [diff] [blame] | 881 | } |
| 882 | break; |
| 883 | case TargetLowering::Custom: |
| 884 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 885 | if (Result.getNode()) break; |
Jim Laskey | 2bc210d | 2007-02-22 15:37:19 +0000 | [diff] [blame] | 886 | // Fall Thru |
Chris Lattner | eb7f34f | 2007-04-27 17:12:52 +0000 | [diff] [blame] | 887 | case TargetLowering::Legal: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 888 | SDValue Ops[] = { DAG.getConstant(0, VT), Tmp1 }; |
Duncan Sands | 4bdcb61 | 2008-07-02 17:40:58 +0000 | [diff] [blame] | 889 | Result = DAG.getMergeValues(Ops, 2); |
Jim Laskey | 2bc210d | 2007-02-22 15:37:19 +0000 | [diff] [blame] | 890 | break; |
| 891 | } |
| 892 | } |
Chris Lattner | eb7f34f | 2007-04-27 17:12:52 +0000 | [diff] [blame] | 893 | } |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 894 | if (Result.getNode()->getNumValues() == 1) break; |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 895 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 896 | assert(Result.getNode()->getNumValues() == 2 && |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 897 | "Cannot return more than two values!"); |
| 898 | |
| 899 | // Since we produced two values, make sure to remember that we |
| 900 | // legalized both of them. |
| 901 | Tmp1 = LegalizeOp(Result); |
| 902 | Tmp2 = LegalizeOp(Result.getValue(1)); |
| 903 | AddLegalizedOperand(Op.getValue(0), Tmp1); |
| 904 | AddLegalizedOperand(Op.getValue(1), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 905 | return Op.getResNo() ? Tmp2 : Tmp1; |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 906 | case ISD::EHSELECTION: { |
| 907 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 908 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 909 | MVT VT = Node->getValueType(0); |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 910 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 911 | default: assert(0 && "This action is not supported yet!"); |
| 912 | case TargetLowering::Expand: { |
| 913 | unsigned Reg = TLI.getExceptionSelectorRegister(); |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 914 | Result = DAG.getCopyFromReg(Tmp2, Reg, VT); |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 915 | } |
| 916 | break; |
| 917 | case TargetLowering::Custom: |
| 918 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 919 | if (Result.getNode()) break; |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 920 | // Fall Thru |
Chris Lattner | eb7f34f | 2007-04-27 17:12:52 +0000 | [diff] [blame] | 921 | case TargetLowering::Legal: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 922 | SDValue Ops[] = { DAG.getConstant(0, VT), Tmp2 }; |
Duncan Sands | 4bdcb61 | 2008-07-02 17:40:58 +0000 | [diff] [blame] | 923 | Result = DAG.getMergeValues(Ops, 2); |
Jim Laskey | 8782d48 | 2007-02-28 20:43:58 +0000 | [diff] [blame] | 924 | break; |
| 925 | } |
| 926 | } |
Chris Lattner | eb7f34f | 2007-04-27 17:12:52 +0000 | [diff] [blame] | 927 | } |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 928 | if (Result.getNode()->getNumValues() == 1) break; |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 929 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 930 | assert(Result.getNode()->getNumValues() == 2 && |
Duncan Sands | b027fa0 | 2007-12-31 18:35:50 +0000 | [diff] [blame] | 931 | "Cannot return more than two values!"); |
| 932 | |
| 933 | // Since we produced two values, make sure to remember that we |
| 934 | // legalized both of them. |
| 935 | Tmp1 = LegalizeOp(Result); |
| 936 | Tmp2 = LegalizeOp(Result.getValue(1)); |
| 937 | AddLegalizedOperand(Op.getValue(0), Tmp1); |
| 938 | AddLegalizedOperand(Op.getValue(1), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 939 | return Op.getResNo() ? Tmp2 : Tmp1; |
Nick Lewycky | 6d4b711 | 2007-07-14 15:11:14 +0000 | [diff] [blame] | 940 | case ISD::EH_RETURN: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 941 | MVT VT = Node->getValueType(0); |
Anton Korobeynikov | 2365f51 | 2007-07-14 14:06:15 +0000 | [diff] [blame] | 942 | // The only "good" option for this node is to custom lower it. |
| 943 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 944 | default: assert(0 && "This action is not supported at all!"); |
| 945 | case TargetLowering::Custom: |
| 946 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 947 | if (Result.getNode()) break; |
Anton Korobeynikov | 2365f51 | 2007-07-14 14:06:15 +0000 | [diff] [blame] | 948 | // Fall Thru |
| 949 | case TargetLowering::Legal: |
| 950 | // Target does not know, how to lower this, lower to noop |
| 951 | Result = LegalizeOp(Node->getOperand(0)); |
| 952 | break; |
| 953 | } |
Nick Lewycky | 6d4b711 | 2007-07-14 15:11:14 +0000 | [diff] [blame] | 954 | } |
Anton Korobeynikov | 2365f51 | 2007-07-14 14:06:15 +0000 | [diff] [blame] | 955 | break; |
Chris Lattner | 08951a3 | 2005-09-02 01:15:01 +0000 | [diff] [blame] | 956 | case ISD::AssertSext: |
| 957 | case ISD::AssertZext: |
| 958 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 959 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Chris Lattner | 08951a3 | 2005-09-02 01:15:01 +0000 | [diff] [blame] | 960 | break; |
Chris Lattner | 308575b | 2005-11-20 22:56:56 +0000 | [diff] [blame] | 961 | case ISD::MERGE_VALUES: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 962 | // Legalize eliminates MERGE_VALUES nodes. |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 963 | Result = Node->getOperand(Op.getResNo()); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 964 | break; |
Chris Lattner | 69a5215 | 2005-01-14 22:38:01 +0000 | [diff] [blame] | 965 | case ISD::CopyFromReg: |
| 966 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 967 | Result = Op.getValue(0); |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 968 | if (Node->getNumValues() == 2) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 969 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 970 | } else { |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 971 | assert(Node->getNumValues() == 3 && "Invalid copyfromreg!"); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 972 | if (Node->getNumOperands() == 3) { |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 973 | Tmp2 = LegalizeOp(Node->getOperand(2)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 974 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); |
| 975 | } else { |
| 976 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
| 977 | } |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 978 | AddLegalizedOperand(Op.getValue(2), Result.getValue(2)); |
| 979 | } |
Chris Lattner | 13c184d | 2005-01-28 06:27:38 +0000 | [diff] [blame] | 980 | // Since CopyFromReg produces two values, make sure to remember that we |
| 981 | // legalized both of them. |
| 982 | AddLegalizedOperand(Op.getValue(0), Result); |
| 983 | AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 984 | return Result.getValue(Op.getResNo()); |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 985 | case ISD::UNDEF: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 986 | MVT VT = Op.getValueType(); |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 987 | switch (TLI.getOperationAction(ISD::UNDEF, VT)) { |
Nate Begeman | ea19cd5 | 2005-04-02 00:41:14 +0000 | [diff] [blame] | 988 | default: assert(0 && "This action is not supported yet!"); |
| 989 | case TargetLowering::Expand: |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 990 | if (VT.isInteger()) |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 991 | Result = DAG.getConstant(0, VT); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 992 | else if (VT.isFloatingPoint()) |
| 993 | Result = DAG.getConstantFP(APFloat(APInt(VT.getSizeInBits(), 0)), |
Dale Johannesen | f41db21 | 2007-09-26 17:26:49 +0000 | [diff] [blame] | 994 | VT); |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 995 | else |
| 996 | assert(0 && "Unknown value type!"); |
| 997 | break; |
Nate Begeman | ea19cd5 | 2005-04-02 00:41:14 +0000 | [diff] [blame] | 998 | case TargetLowering::Legal: |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 999 | break; |
| 1000 | } |
| 1001 | break; |
| 1002 | } |
Chris Lattner | d1f04d4 | 2006-03-24 02:26:29 +0000 | [diff] [blame] | 1003 | |
Chris Lattner | 48b61a7 | 2006-03-28 00:40:33 +0000 | [diff] [blame] | 1004 | case ISD::INTRINSIC_W_CHAIN: |
| 1005 | case ISD::INTRINSIC_WO_CHAIN: |
| 1006 | case ISD::INTRINSIC_VOID: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1007 | SmallVector<SDValue, 8> Ops; |
Chris Lattner | d1f04d4 | 2006-03-24 02:26:29 +0000 | [diff] [blame] | 1008 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) |
| 1009 | Ops.push_back(LegalizeOp(Node->getOperand(i))); |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1010 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 10d7fa6 | 2006-03-26 09:12:51 +0000 | [diff] [blame] | 1011 | |
| 1012 | // Allow the target to custom lower its intrinsics if it wants to. |
Chris Lattner | 48b61a7 | 2006-03-28 00:40:33 +0000 | [diff] [blame] | 1013 | if (TLI.getOperationAction(Node->getOpcode(), MVT::Other) == |
Chris Lattner | 10d7fa6 | 2006-03-26 09:12:51 +0000 | [diff] [blame] | 1014 | TargetLowering::Custom) { |
| 1015 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1016 | if (Tmp3.getNode()) Result = Tmp3; |
Chris Lattner | 13fc2f1 | 2006-03-27 20:28:29 +0000 | [diff] [blame] | 1017 | } |
| 1018 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1019 | if (Result.getNode()->getNumValues() == 1) break; |
Chris Lattner | 13fc2f1 | 2006-03-27 20:28:29 +0000 | [diff] [blame] | 1020 | |
| 1021 | // Must have return value and chain result. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1022 | assert(Result.getNode()->getNumValues() == 2 && |
Chris Lattner | 13fc2f1 | 2006-03-27 20:28:29 +0000 | [diff] [blame] | 1023 | "Cannot return more than two values!"); |
| 1024 | |
| 1025 | // Since loads produce two values, make sure to remember that we |
| 1026 | // legalized both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1027 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 1028 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1029 | return Result.getValue(Op.getResNo()); |
Chris Lattner | d1f04d4 | 2006-03-24 02:26:29 +0000 | [diff] [blame] | 1030 | } |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1031 | |
Dan Gohman | 7f46020 | 2008-06-30 20:59:49 +0000 | [diff] [blame] | 1032 | case ISD::DBG_STOPPOINT: |
| 1033 | assert(Node->getNumOperands() == 1 && "Invalid DBG_STOPPOINT node!"); |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1034 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input chain. |
| 1035 | |
Dan Gohman | 7f46020 | 2008-06-30 20:59:49 +0000 | [diff] [blame] | 1036 | switch (TLI.getOperationAction(ISD::DBG_STOPPOINT, MVT::Other)) { |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1037 | case TargetLowering::Promote: |
| 1038 | default: assert(0 && "This action is not supported yet!"); |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1039 | case TargetLowering::Expand: { |
Jim Laskey | 44c3b9f | 2007-01-26 21:22:28 +0000 | [diff] [blame] | 1040 | MachineModuleInfo *MMI = DAG.getMachineModuleInfo(); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1041 | bool useDEBUG_LOC = TLI.isOperationLegal(ISD::DEBUG_LOC, MVT::Other); |
Dan Gohman | 4406604 | 2008-07-01 00:05:16 +0000 | [diff] [blame] | 1042 | bool useLABEL = TLI.isOperationLegal(ISD::DBG_LABEL, MVT::Other); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1043 | |
Dan Gohman | 7f46020 | 2008-06-30 20:59:49 +0000 | [diff] [blame] | 1044 | const DbgStopPointSDNode *DSP = cast<DbgStopPointSDNode>(Node); |
Jim Laskey | 44c3b9f | 2007-01-26 21:22:28 +0000 | [diff] [blame] | 1045 | if (MMI && (useDEBUG_LOC || useLABEL)) { |
Dan Gohman | 7f46020 | 2008-06-30 20:59:49 +0000 | [diff] [blame] | 1046 | const CompileUnitDesc *CompileUnit = DSP->getCompileUnit(); |
| 1047 | unsigned SrcFile = MMI->RecordSource(CompileUnit); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1048 | |
Dan Gohman | 7f46020 | 2008-06-30 20:59:49 +0000 | [diff] [blame] | 1049 | unsigned Line = DSP->getLine(); |
| 1050 | unsigned Col = DSP->getColumn(); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1051 | |
| 1052 | if (useDEBUG_LOC) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1053 | SDValue Ops[] = { Tmp1, DAG.getConstant(Line, MVT::i32), |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1054 | DAG.getConstant(Col, MVT::i32), |
| 1055 | DAG.getConstant(SrcFile, MVT::i32) }; |
| 1056 | Result = DAG.getNode(ISD::DEBUG_LOC, MVT::Other, Ops, 4); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1057 | } else { |
Evan Cheng | a647c92 | 2008-02-01 02:05:57 +0000 | [diff] [blame] | 1058 | unsigned ID = MMI->RecordSourceLine(Line, Col, SrcFile); |
Dan Gohman | 4406604 | 2008-07-01 00:05:16 +0000 | [diff] [blame] | 1059 | Result = DAG.getLabel(ISD::DBG_LABEL, Tmp1, ID); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1060 | } |
Jim Laskey | e81aecb | 2005-12-21 20:51:37 +0000 | [diff] [blame] | 1061 | } else { |
| 1062 | Result = Tmp1; // chain |
| 1063 | } |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1064 | break; |
Chris Lattner | e773673 | 2005-12-18 23:54:29 +0000 | [diff] [blame] | 1065 | } |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1066 | case TargetLowering::Legal: { |
| 1067 | LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); |
| 1068 | if (Action == Legal && Tmp1 == Node->getOperand(0)) |
| 1069 | break; |
| 1070 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1071 | SmallVector<SDValue, 8> Ops; |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1072 | Ops.push_back(Tmp1); |
| 1073 | if (Action == Legal) { |
| 1074 | Ops.push_back(Node->getOperand(1)); // line # must be legal. |
| 1075 | Ops.push_back(Node->getOperand(2)); // col # must be legal. |
| 1076 | } else { |
| 1077 | // Otherwise promote them. |
| 1078 | Ops.push_back(PromoteOp(Node->getOperand(1))); |
| 1079 | Ops.push_back(PromoteOp(Node->getOperand(2))); |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1080 | } |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1081 | Ops.push_back(Node->getOperand(3)); // filename must be legal. |
| 1082 | Ops.push_back(Node->getOperand(4)); // working dir # must be legal. |
| 1083 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1084 | break; |
| 1085 | } |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1086 | } |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1087 | break; |
Evan Cheng | a844bde | 2008-02-02 04:07:54 +0000 | [diff] [blame] | 1088 | |
| 1089 | case ISD::DECLARE: |
| 1090 | assert(Node->getNumOperands() == 3 && "Invalid DECLARE node!"); |
| 1091 | switch (TLI.getOperationAction(ISD::DECLARE, MVT::Other)) { |
| 1092 | default: assert(0 && "This action is not supported yet!"); |
| 1093 | case TargetLowering::Legal: |
| 1094 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1095 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. |
| 1096 | Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the variable. |
| 1097 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
| 1098 | break; |
Chris Lattner | e07415d | 2008-02-28 05:53:40 +0000 | [diff] [blame] | 1099 | case TargetLowering::Expand: |
| 1100 | Result = LegalizeOp(Node->getOperand(0)); |
| 1101 | break; |
Evan Cheng | a844bde | 2008-02-02 04:07:54 +0000 | [diff] [blame] | 1102 | } |
| 1103 | break; |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1104 | |
| 1105 | case ISD::DEBUG_LOC: |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1106 | assert(Node->getNumOperands() == 4 && "Invalid DEBUG_LOC node!"); |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1107 | switch (TLI.getOperationAction(ISD::DEBUG_LOC, MVT::Other)) { |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1108 | default: assert(0 && "This action is not supported yet!"); |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1109 | case TargetLowering::Legal: { |
| 1110 | LegalizeAction Action = getTypeAction(Node->getOperand(1).getValueType()); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1111 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1112 | if (Action == Legal && Tmp1 == Node->getOperand(0)) |
| 1113 | break; |
| 1114 | if (Action == Legal) { |
| 1115 | Tmp2 = Node->getOperand(1); |
| 1116 | Tmp3 = Node->getOperand(2); |
| 1117 | Tmp4 = Node->getOperand(3); |
| 1118 | } else { |
| 1119 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the line #. |
| 1120 | Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the col #. |
| 1121 | Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize the source file id. |
| 1122 | } |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1123 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1124 | break; |
| 1125 | } |
Evan Cheng | 71e8685 | 2008-07-08 20:06:39 +0000 | [diff] [blame] | 1126 | } |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1127 | break; |
| 1128 | |
Dan Gohman | 4406604 | 2008-07-01 00:05:16 +0000 | [diff] [blame] | 1129 | case ISD::DBG_LABEL: |
| 1130 | case ISD::EH_LABEL: |
| 1131 | assert(Node->getNumOperands() == 1 && "Invalid LABEL node!"); |
| 1132 | switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { |
Jim Laskey | abf6d17 | 2006-01-05 01:25:28 +0000 | [diff] [blame] | 1133 | default: assert(0 && "This action is not supported yet!"); |
| 1134 | case TargetLowering::Legal: |
| 1135 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Dan Gohman | 4406604 | 2008-07-01 00:05:16 +0000 | [diff] [blame] | 1136 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1137 | break; |
Chris Lattner | a9569f1 | 2007-03-03 19:21:38 +0000 | [diff] [blame] | 1138 | case TargetLowering::Expand: |
| 1139 | Result = LegalizeOp(Node->getOperand(0)); |
| 1140 | break; |
Jim Laskey | f5395ce | 2005-12-16 22:45:29 +0000 | [diff] [blame] | 1141 | } |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 1142 | break; |
Chris Lattner | 36ce691 | 2005-11-29 06:21:05 +0000 | [diff] [blame] | 1143 | |
Evan Cheng | 27b7db5 | 2008-03-08 00:58:38 +0000 | [diff] [blame] | 1144 | case ISD::PREFETCH: |
| 1145 | assert(Node->getNumOperands() == 4 && "Invalid Prefetch node!"); |
| 1146 | switch (TLI.getOperationAction(ISD::PREFETCH, MVT::Other)) { |
| 1147 | default: assert(0 && "This action is not supported yet!"); |
| 1148 | case TargetLowering::Legal: |
| 1149 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1150 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the address. |
| 1151 | Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the rw specifier. |
| 1152 | Tmp4 = LegalizeOp(Node->getOperand(3)); // Legalize locality specifier. |
| 1153 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4); |
| 1154 | break; |
| 1155 | case TargetLowering::Expand: |
| 1156 | // It's a noop. |
| 1157 | Result = LegalizeOp(Node->getOperand(0)); |
| 1158 | break; |
| 1159 | } |
| 1160 | break; |
| 1161 | |
Andrew Lenharth | 22c5c1b | 2008-02-16 01:24:58 +0000 | [diff] [blame] | 1162 | case ISD::MEMBARRIER: { |
| 1163 | assert(Node->getNumOperands() == 6 && "Invalid MemBarrier node!"); |
Andrew Lenharth | d497d9f | 2008-02-16 14:46:26 +0000 | [diff] [blame] | 1164 | switch (TLI.getOperationAction(ISD::MEMBARRIER, MVT::Other)) { |
| 1165 | default: assert(0 && "This action is not supported yet!"); |
| 1166 | case TargetLowering::Legal: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1167 | SDValue Ops[6]; |
Andrew Lenharth | d497d9f | 2008-02-16 14:46:26 +0000 | [diff] [blame] | 1168 | Ops[0] = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Duncan Sands | e90a615 | 2008-02-27 08:53:44 +0000 | [diff] [blame] | 1169 | for (int x = 1; x < 6; ++x) { |
| 1170 | Ops[x] = Node->getOperand(x); |
| 1171 | if (!isTypeLegal(Ops[x].getValueType())) |
| 1172 | Ops[x] = PromoteOp(Ops[x]); |
| 1173 | } |
Andrew Lenharth | d497d9f | 2008-02-16 14:46:26 +0000 | [diff] [blame] | 1174 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], 6); |
| 1175 | break; |
| 1176 | } |
| 1177 | case TargetLowering::Expand: |
| 1178 | //There is no libgcc call for this op |
| 1179 | Result = Node->getOperand(0); // Noop |
| 1180 | break; |
| 1181 | } |
Andrew Lenharth | 22c5c1b | 2008-02-16 01:24:58 +0000 | [diff] [blame] | 1182 | break; |
| 1183 | } |
| 1184 | |
Dale Johannesen | e00a8a2 | 2008-08-28 02:44:49 +0000 | [diff] [blame] | 1185 | case ISD::ATOMIC_CMP_SWAP_8: |
| 1186 | case ISD::ATOMIC_CMP_SWAP_16: |
| 1187 | case ISD::ATOMIC_CMP_SWAP_32: |
| 1188 | case ISD::ATOMIC_CMP_SWAP_64: { |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1189 | unsigned int num_operands = 4; |
| 1190 | assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1191 | SDValue Ops[4]; |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1192 | for (unsigned int x = 0; x < num_operands; ++x) |
Andrew Lenharth | 26ed869 | 2008-03-01 21:52:34 +0000 | [diff] [blame] | 1193 | Ops[x] = LegalizeOp(Node->getOperand(x)); |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1194 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); |
| 1195 | |
| 1196 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
| 1197 | default: assert(0 && "This action is not supported yet!"); |
| 1198 | case TargetLowering::Custom: |
| 1199 | Result = TLI.LowerOperation(Result, DAG); |
| 1200 | break; |
| 1201 | case TargetLowering::Legal: |
| 1202 | break; |
| 1203 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1204 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 1205 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1206 | return Result.getValue(Op.getResNo()); |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 1207 | } |
Dale Johannesen | e00a8a2 | 2008-08-28 02:44:49 +0000 | [diff] [blame] | 1208 | case ISD::ATOMIC_LOAD_ADD_8: |
| 1209 | case ISD::ATOMIC_LOAD_SUB_8: |
| 1210 | case ISD::ATOMIC_LOAD_AND_8: |
| 1211 | case ISD::ATOMIC_LOAD_OR_8: |
| 1212 | case ISD::ATOMIC_LOAD_XOR_8: |
| 1213 | case ISD::ATOMIC_LOAD_NAND_8: |
| 1214 | case ISD::ATOMIC_LOAD_MIN_8: |
| 1215 | case ISD::ATOMIC_LOAD_MAX_8: |
| 1216 | case ISD::ATOMIC_LOAD_UMIN_8: |
| 1217 | case ISD::ATOMIC_LOAD_UMAX_8: |
| 1218 | case ISD::ATOMIC_SWAP_8: |
| 1219 | case ISD::ATOMIC_LOAD_ADD_16: |
| 1220 | case ISD::ATOMIC_LOAD_SUB_16: |
| 1221 | case ISD::ATOMIC_LOAD_AND_16: |
| 1222 | case ISD::ATOMIC_LOAD_OR_16: |
| 1223 | case ISD::ATOMIC_LOAD_XOR_16: |
| 1224 | case ISD::ATOMIC_LOAD_NAND_16: |
| 1225 | case ISD::ATOMIC_LOAD_MIN_16: |
| 1226 | case ISD::ATOMIC_LOAD_MAX_16: |
| 1227 | case ISD::ATOMIC_LOAD_UMIN_16: |
| 1228 | case ISD::ATOMIC_LOAD_UMAX_16: |
| 1229 | case ISD::ATOMIC_SWAP_16: |
| 1230 | case ISD::ATOMIC_LOAD_ADD_32: |
| 1231 | case ISD::ATOMIC_LOAD_SUB_32: |
| 1232 | case ISD::ATOMIC_LOAD_AND_32: |
| 1233 | case ISD::ATOMIC_LOAD_OR_32: |
| 1234 | case ISD::ATOMIC_LOAD_XOR_32: |
| 1235 | case ISD::ATOMIC_LOAD_NAND_32: |
| 1236 | case ISD::ATOMIC_LOAD_MIN_32: |
| 1237 | case ISD::ATOMIC_LOAD_MAX_32: |
| 1238 | case ISD::ATOMIC_LOAD_UMIN_32: |
| 1239 | case ISD::ATOMIC_LOAD_UMAX_32: |
| 1240 | case ISD::ATOMIC_SWAP_32: |
| 1241 | case ISD::ATOMIC_LOAD_ADD_64: |
| 1242 | case ISD::ATOMIC_LOAD_SUB_64: |
| 1243 | case ISD::ATOMIC_LOAD_AND_64: |
| 1244 | case ISD::ATOMIC_LOAD_OR_64: |
| 1245 | case ISD::ATOMIC_LOAD_XOR_64: |
| 1246 | case ISD::ATOMIC_LOAD_NAND_64: |
| 1247 | case ISD::ATOMIC_LOAD_MIN_64: |
| 1248 | case ISD::ATOMIC_LOAD_MAX_64: |
| 1249 | case ISD::ATOMIC_LOAD_UMIN_64: |
| 1250 | case ISD::ATOMIC_LOAD_UMAX_64: |
| 1251 | case ISD::ATOMIC_SWAP_64: { |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1252 | unsigned int num_operands = 3; |
| 1253 | assert(Node->getNumOperands() == num_operands && "Invalid Atomic node!"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1254 | SDValue Ops[3]; |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1255 | for (unsigned int x = 0; x < num_operands; ++x) |
| 1256 | Ops[x] = LegalizeOp(Node->getOperand(x)); |
| 1257 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], num_operands); |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 1258 | |
Andrew Lenharth | 26ed869 | 2008-03-01 21:52:34 +0000 | [diff] [blame] | 1259 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 1260 | default: assert(0 && "This action is not supported yet!"); |
Andrew Lenharth | 26ed869 | 2008-03-01 21:52:34 +0000 | [diff] [blame] | 1261 | case TargetLowering::Custom: |
| 1262 | Result = TLI.LowerOperation(Result, DAG); |
| 1263 | break; |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1264 | case TargetLowering::Expand: |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1265 | Result = SDValue(TLI.ReplaceNodeResults(Op.getNode(), DAG),0); |
Mon P Wang | 63307c3 | 2008-05-05 19:05:59 +0000 | [diff] [blame] | 1266 | break; |
Andrew Lenharth | 26ed869 | 2008-03-01 21:52:34 +0000 | [diff] [blame] | 1267 | case TargetLowering::Legal: |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 1268 | break; |
| 1269 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1270 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 1271 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1272 | return Result.getValue(Op.getResNo()); |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 1273 | } |
Scott Michel | c1513d2 | 2007-08-08 23:23:31 +0000 | [diff] [blame] | 1274 | case ISD::Constant: { |
| 1275 | ConstantSDNode *CN = cast<ConstantSDNode>(Node); |
| 1276 | unsigned opAction = |
| 1277 | TLI.getOperationAction(ISD::Constant, CN->getValueType(0)); |
| 1278 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1279 | // We know we don't need to expand constants here, constants only have one |
| 1280 | // value and we check that it is fine above. |
| 1281 | |
Scott Michel | c1513d2 | 2007-08-08 23:23:31 +0000 | [diff] [blame] | 1282 | if (opAction == TargetLowering::Custom) { |
| 1283 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1284 | if (Tmp1.getNode()) |
Scott Michel | c1513d2 | 2007-08-08 23:23:31 +0000 | [diff] [blame] | 1285 | Result = Tmp1; |
| 1286 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1287 | break; |
Scott Michel | c1513d2 | 2007-08-08 23:23:31 +0000 | [diff] [blame] | 1288 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1289 | case ISD::ConstantFP: { |
| 1290 | // Spill FP immediates to the constant pool if the target cannot directly |
| 1291 | // codegen them. Targets often have some immediate values that can be |
| 1292 | // efficiently generated into an FP register without a load. We explicitly |
| 1293 | // leave these constants as ConstantFP nodes for the target to deal with. |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1294 | ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); |
| 1295 | |
Chris Lattner | 3181a77 | 2006-01-29 06:26:56 +0000 | [diff] [blame] | 1296 | switch (TLI.getOperationAction(ISD::ConstantFP, CFP->getValueType(0))) { |
| 1297 | default: assert(0 && "This action is not supported yet!"); |
Nate Begeman | e179584 | 2008-02-14 08:57:00 +0000 | [diff] [blame] | 1298 | case TargetLowering::Legal: |
| 1299 | break; |
Chris Lattner | 3181a77 | 2006-01-29 06:26:56 +0000 | [diff] [blame] | 1300 | case TargetLowering::Custom: |
| 1301 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1302 | if (Tmp3.getNode()) { |
Chris Lattner | 3181a77 | 2006-01-29 06:26:56 +0000 | [diff] [blame] | 1303 | Result = Tmp3; |
| 1304 | break; |
| 1305 | } |
| 1306 | // FALLTHROUGH |
Nate Begeman | e179584 | 2008-02-14 08:57:00 +0000 | [diff] [blame] | 1307 | case TargetLowering::Expand: { |
| 1308 | // Check to see if this FP immediate is already legal. |
| 1309 | bool isLegal = false; |
| 1310 | for (TargetLowering::legal_fpimm_iterator I = TLI.legal_fpimm_begin(), |
| 1311 | E = TLI.legal_fpimm_end(); I != E; ++I) { |
| 1312 | if (CFP->isExactlyValue(*I)) { |
| 1313 | isLegal = true; |
| 1314 | break; |
| 1315 | } |
| 1316 | } |
| 1317 | // If this is a legal constant, turn it into a TargetConstantFP node. |
| 1318 | if (isLegal) |
| 1319 | break; |
Evan Cheng | 279101e | 2006-12-12 22:19:28 +0000 | [diff] [blame] | 1320 | Result = ExpandConstantFP(CFP, true, DAG, TLI); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1321 | } |
Nate Begeman | e179584 | 2008-02-14 08:57:00 +0000 | [diff] [blame] | 1322 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1323 | break; |
| 1324 | } |
Chris Lattner | 040c11c | 2005-11-09 18:48:57 +0000 | [diff] [blame] | 1325 | case ISD::TokenFactor: |
| 1326 | if (Node->getNumOperands() == 2) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1327 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 1328 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 1329 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 1330 | } else if (Node->getNumOperands() == 3) { |
| 1331 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 1332 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 1333 | Tmp3 = LegalizeOp(Node->getOperand(2)); |
| 1334 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | 040c11c | 2005-11-09 18:48:57 +0000 | [diff] [blame] | 1335 | } else { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1336 | SmallVector<SDValue, 8> Ops; |
Chris Lattner | 040c11c | 2005-11-09 18:48:57 +0000 | [diff] [blame] | 1337 | // Legalize the operands. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1338 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) |
| 1339 | Ops.push_back(LegalizeOp(Node->getOperand(i))); |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1340 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | a385e9b | 2005-01-13 17:59:25 +0000 | [diff] [blame] | 1341 | } |
Chris Lattner | a385e9b | 2005-01-13 17:59:25 +0000 | [diff] [blame] | 1342 | break; |
Chris Lattner | fdfded5 | 2006-04-12 16:20:43 +0000 | [diff] [blame] | 1343 | |
| 1344 | case ISD::FORMAL_ARGUMENTS: |
Chris Lattner | f4ec817 | 2006-05-16 22:53:20 +0000 | [diff] [blame] | 1345 | case ISD::CALL: |
Chris Lattner | fdfded5 | 2006-04-12 16:20:43 +0000 | [diff] [blame] | 1346 | // The only option for this is to custom lower it. |
Chris Lattner | b248e16 | 2006-05-17 17:55:45 +0000 | [diff] [blame] | 1347 | Tmp3 = TLI.LowerOperation(Result.getValue(0), DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1348 | assert(Tmp3.getNode() && "Target didn't custom lower this node!"); |
Dale Johannesen | 0ea0356 | 2008-03-05 19:14:03 +0000 | [diff] [blame] | 1349 | // A call within a calling sequence must be legalized to something |
| 1350 | // other than the normal CALLSEQ_END. Violating this gets Legalize |
| 1351 | // into an infinite loop. |
| 1352 | assert ((!IsLegalizingCall || |
| 1353 | Node->getOpcode() != ISD::CALL || |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1354 | Tmp3.getNode()->getOpcode() != ISD::CALLSEQ_END) && |
Dale Johannesen | 0ea0356 | 2008-03-05 19:14:03 +0000 | [diff] [blame] | 1355 | "Nested CALLSEQ_START..CALLSEQ_END not supported."); |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1356 | |
| 1357 | // The number of incoming and outgoing values should match; unless the final |
| 1358 | // outgoing value is a flag. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1359 | assert((Tmp3.getNode()->getNumValues() == Result.getNode()->getNumValues() || |
| 1360 | (Tmp3.getNode()->getNumValues() == Result.getNode()->getNumValues() + 1 && |
| 1361 | Tmp3.getNode()->getValueType(Tmp3.getNode()->getNumValues() - 1) == |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1362 | MVT::Flag)) && |
Chris Lattner | b248e16 | 2006-05-17 17:55:45 +0000 | [diff] [blame] | 1363 | "Lowering call/formal_arguments produced unexpected # results!"); |
Chris Lattner | e2e4173 | 2006-05-16 05:49:56 +0000 | [diff] [blame] | 1364 | |
Chris Lattner | f4ec817 | 2006-05-16 22:53:20 +0000 | [diff] [blame] | 1365 | // Since CALL/FORMAL_ARGUMENTS nodes produce multiple values, make sure to |
Chris Lattner | e2e4173 | 2006-05-16 05:49:56 +0000 | [diff] [blame] | 1366 | // remember that we legalized all of them, so it doesn't get relegalized. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1367 | for (unsigned i = 0, e = Tmp3.getNode()->getNumValues(); i != e; ++i) { |
| 1368 | if (Tmp3.getNode()->getValueType(i) == MVT::Flag) |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1369 | continue; |
Chris Lattner | b248e16 | 2006-05-17 17:55:45 +0000 | [diff] [blame] | 1370 | Tmp1 = LegalizeOp(Tmp3.getValue(i)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1371 | if (Op.getResNo() == i) |
Chris Lattner | e2e4173 | 2006-05-16 05:49:56 +0000 | [diff] [blame] | 1372 | Tmp2 = Tmp1; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1373 | AddLegalizedOperand(SDValue(Node, i), Tmp1); |
Chris Lattner | e2e4173 | 2006-05-16 05:49:56 +0000 | [diff] [blame] | 1374 | } |
| 1375 | return Tmp2; |
Christopher Lamb | 557c363 | 2007-07-26 07:34:40 +0000 | [diff] [blame] | 1376 | case ISD::EXTRACT_SUBREG: { |
| 1377 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 1378 | ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(1)); |
| 1379 | assert(idx && "Operand must be a constant"); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1380 | Tmp2 = DAG.getTargetConstant(idx->getAPIntValue(), idx->getValueType(0)); |
Christopher Lamb | 557c363 | 2007-07-26 07:34:40 +0000 | [diff] [blame] | 1381 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 1382 | } |
| 1383 | break; |
| 1384 | case ISD::INSERT_SUBREG: { |
| 1385 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 1386 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 1387 | ConstantSDNode *idx = dyn_cast<ConstantSDNode>(Node->getOperand(2)); |
| 1388 | assert(idx && "Operand must be a constant"); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1389 | Tmp3 = DAG.getTargetConstant(idx->getAPIntValue(), idx->getValueType(0)); |
Christopher Lamb | 557c363 | 2007-07-26 07:34:40 +0000 | [diff] [blame] | 1390 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
| 1391 | } |
| 1392 | break; |
Chris Lattner | b2827b0 | 2006-03-19 00:52:58 +0000 | [diff] [blame] | 1393 | case ISD::BUILD_VECTOR: |
| 1394 | switch (TLI.getOperationAction(ISD::BUILD_VECTOR, Node->getValueType(0))) { |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1395 | default: assert(0 && "This action is not supported yet!"); |
| 1396 | case TargetLowering::Custom: |
| 1397 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1398 | if (Tmp3.getNode()) { |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1399 | Result = Tmp3; |
| 1400 | break; |
| 1401 | } |
| 1402 | // FALLTHROUGH |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 1403 | case TargetLowering::Expand: |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1404 | Result = ExpandBUILD_VECTOR(Result.getNode()); |
Chris Lattner | b2827b0 | 2006-03-19 00:52:58 +0000 | [diff] [blame] | 1405 | break; |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1406 | } |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1407 | break; |
| 1408 | case ISD::INSERT_VECTOR_ELT: |
| 1409 | Tmp1 = LegalizeOp(Node->getOperand(0)); // InVec |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1410 | Tmp3 = LegalizeOp(Node->getOperand(2)); // InEltNo |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1411 | |
| 1412 | // The type of the value to insert may not be legal, even though the vector |
| 1413 | // type is legal. Legalize/Promote accordingly. We do not handle Expand |
| 1414 | // here. |
| 1415 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
| 1416 | default: assert(0 && "Cannot expand insert element operand"); |
| 1417 | case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; |
| 1418 | case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; |
| 1419 | } |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1420 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
| 1421 | |
| 1422 | switch (TLI.getOperationAction(ISD::INSERT_VECTOR_ELT, |
| 1423 | Node->getValueType(0))) { |
| 1424 | default: assert(0 && "This action is not supported yet!"); |
| 1425 | case TargetLowering::Legal: |
| 1426 | break; |
| 1427 | case TargetLowering::Custom: |
Nate Begeman | 2281a99 | 2008-01-05 20:47:37 +0000 | [diff] [blame] | 1428 | Tmp4 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1429 | if (Tmp4.getNode()) { |
Nate Begeman | 2281a99 | 2008-01-05 20:47:37 +0000 | [diff] [blame] | 1430 | Result = Tmp4; |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1431 | break; |
| 1432 | } |
| 1433 | // FALLTHROUGH |
| 1434 | case TargetLowering::Expand: { |
Chris Lattner | 8d5a894 | 2006-04-17 19:21:01 +0000 | [diff] [blame] | 1435 | // If the insert index is a constant, codegen this as a scalar_to_vector, |
| 1436 | // then a shuffle that inserts it into the right position in the vector. |
| 1437 | if (ConstantSDNode *InsertPos = dyn_cast<ConstantSDNode>(Tmp3)) { |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1438 | // SCALAR_TO_VECTOR requires that the type of the value being inserted |
| 1439 | // match the element type of the vector being created. |
| 1440 | if (Tmp2.getValueType() == |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1441 | Op.getValueType().getVectorElementType()) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1442 | SDValue ScVec = DAG.getNode(ISD::SCALAR_TO_VECTOR, |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1443 | Tmp1.getValueType(), Tmp2); |
| 1444 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1445 | unsigned NumElts = Tmp1.getValueType().getVectorNumElements(); |
| 1446 | MVT ShufMaskVT = |
| 1447 | MVT::getIntVectorWithNumElements(NumElts); |
| 1448 | MVT ShufMaskEltVT = ShufMaskVT.getVectorElementType(); |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1449 | |
| 1450 | // We generate a shuffle of InVec and ScVec, so the shuffle mask |
| 1451 | // should be 0,1,2,3,4,5... with the appropriate element replaced with |
| 1452 | // elt 0 of the RHS. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1453 | SmallVector<SDValue, 8> ShufOps; |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1454 | for (unsigned i = 0; i != NumElts; ++i) { |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1455 | if (i != InsertPos->getZExtValue()) |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1456 | ShufOps.push_back(DAG.getConstant(i, ShufMaskEltVT)); |
| 1457 | else |
| 1458 | ShufOps.push_back(DAG.getConstant(NumElts, ShufMaskEltVT)); |
| 1459 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1460 | SDValue ShufMask = DAG.getNode(ISD::BUILD_VECTOR, ShufMaskVT, |
Nate Begeman | 0325d90 | 2008-02-13 06:43:04 +0000 | [diff] [blame] | 1461 | &ShufOps[0], ShufOps.size()); |
| 1462 | |
| 1463 | Result = DAG.getNode(ISD::VECTOR_SHUFFLE, Tmp1.getValueType(), |
| 1464 | Tmp1, ScVec, ShufMask); |
| 1465 | Result = LegalizeOp(Result); |
| 1466 | break; |
Chris Lattner | 8d5a894 | 2006-04-17 19:21:01 +0000 | [diff] [blame] | 1467 | } |
Chris Lattner | 8d5a894 | 2006-04-17 19:21:01 +0000 | [diff] [blame] | 1468 | } |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 1469 | Result = PerformInsertVectorEltInMemory(Tmp1, Tmp2, Tmp3); |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 1470 | break; |
| 1471 | } |
| 1472 | } |
| 1473 | break; |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 1474 | case ISD::SCALAR_TO_VECTOR: |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1475 | if (!TLI.isTypeLegal(Node->getOperand(0).getValueType())) { |
| 1476 | Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); |
| 1477 | break; |
| 1478 | } |
| 1479 | |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 1480 | Tmp1 = LegalizeOp(Node->getOperand(0)); // InVal |
| 1481 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 1482 | switch (TLI.getOperationAction(ISD::SCALAR_TO_VECTOR, |
| 1483 | Node->getValueType(0))) { |
| 1484 | default: assert(0 && "This action is not supported yet!"); |
| 1485 | case TargetLowering::Legal: |
| 1486 | break; |
Chris Lattner | 4d3abee | 2006-03-19 06:47:21 +0000 | [diff] [blame] | 1487 | case TargetLowering::Custom: |
| 1488 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1489 | if (Tmp3.getNode()) { |
Chris Lattner | 4d3abee | 2006-03-19 06:47:21 +0000 | [diff] [blame] | 1490 | Result = Tmp3; |
| 1491 | break; |
| 1492 | } |
| 1493 | // FALLTHROUGH |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1494 | case TargetLowering::Expand: |
| 1495 | Result = LegalizeOp(ExpandSCALAR_TO_VECTOR(Node)); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 1496 | break; |
| 1497 | } |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 1498 | break; |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 1499 | case ISD::VECTOR_SHUFFLE: |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 1500 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the input vectors, |
| 1501 | Tmp2 = LegalizeOp(Node->getOperand(1)); // but not the shuffle mask. |
| 1502 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
| 1503 | |
| 1504 | // Allow targets to custom lower the SHUFFLEs they support. |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1505 | switch (TLI.getOperationAction(ISD::VECTOR_SHUFFLE,Result.getValueType())) { |
| 1506 | default: assert(0 && "Unknown operation action!"); |
| 1507 | case TargetLowering::Legal: |
| 1508 | assert(isShuffleLegal(Result.getValueType(), Node->getOperand(2)) && |
| 1509 | "vector shuffle should not be created if not legal!"); |
| 1510 | break; |
| 1511 | case TargetLowering::Custom: |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1512 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1513 | if (Tmp3.getNode()) { |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1514 | Result = Tmp3; |
| 1515 | break; |
| 1516 | } |
| 1517 | // FALLTHROUGH |
| 1518 | case TargetLowering::Expand: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1519 | MVT VT = Node->getValueType(0); |
| 1520 | MVT EltVT = VT.getVectorElementType(); |
| 1521 | MVT PtrVT = TLI.getPointerTy(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1522 | SDValue Mask = Node->getOperand(2); |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1523 | unsigned NumElems = Mask.getNumOperands(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1524 | SmallVector<SDValue,8> Ops; |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1525 | for (unsigned i = 0; i != NumElems; ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1526 | SDValue Arg = Mask.getOperand(i); |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1527 | if (Arg.getOpcode() == ISD::UNDEF) { |
| 1528 | Ops.push_back(DAG.getNode(ISD::UNDEF, EltVT)); |
| 1529 | } else { |
| 1530 | assert(isa<ConstantSDNode>(Arg) && "Invalid VECTOR_SHUFFLE mask!"); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1531 | unsigned Idx = cast<ConstantSDNode>(Arg)->getZExtValue(); |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1532 | if (Idx < NumElems) |
| 1533 | Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp1, |
| 1534 | DAG.getConstant(Idx, PtrVT))); |
| 1535 | else |
| 1536 | Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, EltVT, Tmp2, |
| 1537 | DAG.getConstant(Idx - NumElems, PtrVT))); |
| 1538 | } |
| 1539 | } |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 1540 | Result = DAG.getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size()); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1541 | break; |
Evan Cheng | 18dd6d0 | 2006-04-05 06:07:11 +0000 | [diff] [blame] | 1542 | } |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1543 | case TargetLowering::Promote: { |
| 1544 | // Change base type to a different vector type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1545 | MVT OVT = Node->getValueType(0); |
| 1546 | MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1547 | |
| 1548 | // Cast the two input vectors. |
| 1549 | Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); |
| 1550 | Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); |
| 1551 | |
| 1552 | // Convert the shuffle mask to the right # elements. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1553 | Tmp3 = SDValue(isShuffleLegal(OVT, Node->getOperand(2)), 0); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1554 | assert(Tmp3.getNode() && "Shuffle not legal?"); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 1555 | Result = DAG.getNode(ISD::VECTOR_SHUFFLE, NVT, Tmp1, Tmp2, Tmp3); |
| 1556 | Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); |
| 1557 | break; |
| 1558 | } |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 1559 | } |
| 1560 | break; |
Chris Lattner | 384504c | 2006-03-21 20:44:12 +0000 | [diff] [blame] | 1561 | |
| 1562 | case ISD::EXTRACT_VECTOR_ELT: |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 1563 | Tmp1 = Node->getOperand(0); |
Chris Lattner | 384504c | 2006-03-21 20:44:12 +0000 | [diff] [blame] | 1564 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 1565 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 1566 | Result = ExpandEXTRACT_VECTOR_ELT(Result); |
Chris Lattner | 384504c | 2006-03-21 20:44:12 +0000 | [diff] [blame] | 1567 | break; |
| 1568 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 1569 | case ISD::EXTRACT_SUBVECTOR: |
| 1570 | Tmp1 = Node->getOperand(0); |
| 1571 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 1572 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 1573 | Result = ExpandEXTRACT_SUBVECTOR(Result); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 1574 | break; |
| 1575 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1576 | case ISD::CALLSEQ_START: { |
| 1577 | SDNode *CallEnd = FindCallEndFromCallStart(Node); |
| 1578 | |
| 1579 | // Recursively Legalize all of the inputs of the call end that do not lead |
| 1580 | // to this call start. This ensures that any libcalls that need be inserted |
| 1581 | // are inserted *before* the CALLSEQ_START. |
Chris Lattner | 00755df | 2007-02-04 00:27:56 +0000 | [diff] [blame] | 1582 | {SmallPtrSet<SDNode*, 32> NodesLeadingTo; |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1583 | for (unsigned i = 0, e = CallEnd->getNumOperands(); i != e; ++i) |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1584 | LegalizeAllNodesNotLeadingTo(CallEnd->getOperand(i).getNode(), Node, |
Chris Lattner | c9cf4f1 | 2006-07-26 23:55:56 +0000 | [diff] [blame] | 1585 | NodesLeadingTo); |
| 1586 | } |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1587 | |
| 1588 | // Now that we legalized all of the inputs (which may have inserted |
| 1589 | // libcalls) create the new CALLSEQ_START node. |
| 1590 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1591 | |
| 1592 | // Merge in the last call, to ensure that this call start after the last |
| 1593 | // call ended. |
Chris Lattner | c5d7d7c | 2006-05-17 18:00:08 +0000 | [diff] [blame] | 1594 | if (LastCALLSEQ_END.getOpcode() != ISD::EntryToken) { |
Chris Lattner | b248e16 | 2006-05-17 17:55:45 +0000 | [diff] [blame] | 1595 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1596 | Tmp1 = LegalizeOp(Tmp1); |
| 1597 | } |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1598 | |
| 1599 | // Do not try to legalize the target-specific arguments (#1+). |
| 1600 | if (Tmp1 != Node->getOperand(0)) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1601 | SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1602 | Ops[0] = Tmp1; |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1603 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1604 | } |
| 1605 | |
| 1606 | // Remember that the CALLSEQ_START is legalized. |
Chris Lattner | 4b653a0 | 2006-02-14 00:55:02 +0000 | [diff] [blame] | 1607 | AddLegalizedOperand(Op.getValue(0), Result); |
| 1608 | if (Node->getNumValues() == 2) // If this has a flag result, remember it. |
| 1609 | AddLegalizedOperand(Op.getValue(1), Result.getValue(1)); |
| 1610 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1611 | // Now that the callseq_start and all of the non-call nodes above this call |
| 1612 | // sequence have been legalized, legalize the call itself. During this |
| 1613 | // process, no libcalls can/will be inserted, guaranteeing that no calls |
| 1614 | // can overlap. |
| 1615 | assert(!IsLegalizingCall && "Inconsistent sequentialization of calls!"); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1616 | // Note that we are selecting this call! |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1617 | LastCALLSEQ_END = SDValue(CallEnd, 0); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1618 | IsLegalizingCall = true; |
| 1619 | |
| 1620 | // Legalize the call, starting from the CALLSEQ_END. |
| 1621 | LegalizeOp(LastCALLSEQ_END); |
| 1622 | assert(!IsLegalizingCall && "CALLSEQ_END should have cleared this!"); |
| 1623 | return Result; |
| 1624 | } |
Chris Lattner | 16cd04d | 2005-05-12 23:24:06 +0000 | [diff] [blame] | 1625 | case ISD::CALLSEQ_END: |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1626 | // If the CALLSEQ_START node hasn't been legalized first, legalize it. This |
| 1627 | // will cause this node to be legalized as well as handling libcalls right. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1628 | if (LastCALLSEQ_END.getNode() != Node) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1629 | LegalizeOp(SDValue(FindCallStartFromCallEnd(Node), 0)); |
| 1630 | DenseMap<SDValue, SDValue>::iterator I = LegalizedNodes.find(Op); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1631 | assert(I != LegalizedNodes.end() && |
| 1632 | "Legalizing the call start should have legalized this node!"); |
| 1633 | return I->second; |
| 1634 | } |
| 1635 | |
| 1636 | // Otherwise, the call start has been legalized and everything is going |
| 1637 | // according to plan. Just legalize ourselves normally here. |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 1638 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | 70814bc | 2006-01-29 07:58:15 +0000 | [diff] [blame] | 1639 | // Do not try to legalize the target-specific arguments (#1+), except for |
| 1640 | // an optional flag input. |
| 1641 | if (Node->getOperand(Node->getNumOperands()-1).getValueType() != MVT::Flag){ |
| 1642 | if (Tmp1 != Node->getOperand(0)) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1643 | SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); |
Chris Lattner | 70814bc | 2006-01-29 07:58:15 +0000 | [diff] [blame] | 1644 | Ops[0] = Tmp1; |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1645 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 70814bc | 2006-01-29 07:58:15 +0000 | [diff] [blame] | 1646 | } |
| 1647 | } else { |
| 1648 | Tmp2 = LegalizeOp(Node->getOperand(Node->getNumOperands()-1)); |
| 1649 | if (Tmp1 != Node->getOperand(0) || |
| 1650 | Tmp2 != Node->getOperand(Node->getNumOperands()-1)) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1651 | SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); |
Chris Lattner | 70814bc | 2006-01-29 07:58:15 +0000 | [diff] [blame] | 1652 | Ops[0] = Tmp1; |
| 1653 | Ops.back() = Tmp2; |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1654 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 70814bc | 2006-01-29 07:58:15 +0000 | [diff] [blame] | 1655 | } |
Chris Lattner | 6a54289 | 2006-01-24 05:48:21 +0000 | [diff] [blame] | 1656 | } |
Chris Lattner | 4b653a0 | 2006-02-14 00:55:02 +0000 | [diff] [blame] | 1657 | assert(IsLegalizingCall && "Call sequence imbalance between start/end?"); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1658 | // This finishes up call legalization. |
| 1659 | IsLegalizingCall = false; |
Chris Lattner | 4b653a0 | 2006-02-14 00:55:02 +0000 | [diff] [blame] | 1660 | |
| 1661 | // If the CALLSEQ_END node has a flag, remember that we legalized it. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1662 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
Chris Lattner | 4b653a0 | 2006-02-14 00:55:02 +0000 | [diff] [blame] | 1663 | if (Node->getNumValues() == 2) |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1664 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1665 | return Result.getValue(Op.getResNo()); |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1666 | case ISD::DYNAMIC_STACKALLOC: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1667 | MVT VT = Node->getValueType(0); |
Chris Lattner | fa404e8 | 2005-01-09 19:03:49 +0000 | [diff] [blame] | 1668 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1669 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the size. |
| 1670 | Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the alignment. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1671 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | fa404e8 | 2005-01-09 19:03:49 +0000 | [diff] [blame] | 1672 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1673 | Tmp1 = Result.getValue(0); |
Chris Lattner | 5f65229 | 2006-01-15 08:43:08 +0000 | [diff] [blame] | 1674 | Tmp2 = Result.getValue(1); |
Evan Cheng | 61bbbab | 2007-08-16 23:50:06 +0000 | [diff] [blame] | 1675 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1676 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 903d278 | 2006-01-15 08:54:32 +0000 | [diff] [blame] | 1677 | case TargetLowering::Expand: { |
| 1678 | unsigned SPReg = TLI.getStackPointerRegisterToSaveRestore(); |
| 1679 | assert(SPReg && "Target cannot require DYNAMIC_STACKALLOC expansion and" |
| 1680 | " not tell us which reg is the stack pointer!"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1681 | SDValue Chain = Tmp1.getOperand(0); |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1682 | |
| 1683 | // Chain the dynamic stack allocation so that it doesn't modify the stack |
| 1684 | // pointer when other instructions are using the stack. |
| 1685 | Chain = DAG.getCALLSEQ_START(Chain, |
| 1686 | DAG.getConstant(0, TLI.getPointerTy())); |
| 1687 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1688 | SDValue Size = Tmp2.getOperand(1); |
| 1689 | SDValue SP = DAG.getCopyFromReg(Chain, SPReg, VT); |
Evan Cheng | 61bbbab | 2007-08-16 23:50:06 +0000 | [diff] [blame] | 1690 | Chain = SP.getValue(1); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1691 | unsigned Align = cast<ConstantSDNode>(Tmp3)->getZExtValue(); |
Evan Cheng | 61bbbab | 2007-08-16 23:50:06 +0000 | [diff] [blame] | 1692 | unsigned StackAlign = |
| 1693 | TLI.getTargetMachine().getFrameInfo()->getStackAlignment(); |
| 1694 | if (Align > StackAlign) |
Evan Cheng | 3e20bba | 2007-08-17 18:02:22 +0000 | [diff] [blame] | 1695 | SP = DAG.getNode(ISD::AND, VT, SP, |
| 1696 | DAG.getConstant(-(uint64_t)Align, VT)); |
Evan Cheng | 61bbbab | 2007-08-16 23:50:06 +0000 | [diff] [blame] | 1697 | Tmp1 = DAG.getNode(ISD::SUB, VT, SP, Size); // Value |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1698 | Chain = DAG.getCopyToReg(Chain, SPReg, Tmp1); // Output chain |
| 1699 | |
| 1700 | Tmp2 = |
| 1701 | DAG.getCALLSEQ_END(Chain, |
| 1702 | DAG.getConstant(0, TLI.getPointerTy()), |
| 1703 | DAG.getConstant(0, TLI.getPointerTy()), |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1704 | SDValue()); |
Bill Wendling | 0f8d9c0 | 2007-11-13 00:44:25 +0000 | [diff] [blame] | 1705 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1706 | Tmp1 = LegalizeOp(Tmp1); |
| 1707 | Tmp2 = LegalizeOp(Tmp2); |
Chris Lattner | 903d278 | 2006-01-15 08:54:32 +0000 | [diff] [blame] | 1708 | break; |
| 1709 | } |
| 1710 | case TargetLowering::Custom: |
Chris Lattner | 5f65229 | 2006-01-15 08:43:08 +0000 | [diff] [blame] | 1711 | Tmp3 = TLI.LowerOperation(Tmp1, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1712 | if (Tmp3.getNode()) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1713 | Tmp1 = LegalizeOp(Tmp3); |
| 1714 | Tmp2 = LegalizeOp(Tmp3.getValue(1)); |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1715 | } |
Chris Lattner | 903d278 | 2006-01-15 08:54:32 +0000 | [diff] [blame] | 1716 | break; |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1717 | case TargetLowering::Legal: |
Chris Lattner | 903d278 | 2006-01-15 08:54:32 +0000 | [diff] [blame] | 1718 | break; |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1719 | } |
Chris Lattner | 903d278 | 2006-01-15 08:54:32 +0000 | [diff] [blame] | 1720 | // Since this op produce two values, make sure to remember that we |
| 1721 | // legalized both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1722 | AddLegalizedOperand(SDValue(Node, 0), Tmp1); |
| 1723 | AddLegalizedOperand(SDValue(Node, 1), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1724 | return Op.getResNo() ? Tmp2 : Tmp1; |
Evan Cheng | a7dce3c | 2006-01-11 22:14:47 +0000 | [diff] [blame] | 1725 | } |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1726 | case ISD::INLINEASM: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1727 | SmallVector<SDValue, 8> Ops(Node->op_begin(), Node->op_end()); |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1728 | bool Changed = false; |
| 1729 | // Legalize all of the operands of the inline asm, in case they are nodes |
| 1730 | // that need to be expanded or something. Note we skip the asm string and |
| 1731 | // all of the TargetConstant flags. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1732 | SDValue Op = LegalizeOp(Ops[0]); |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1733 | Changed = Op != Ops[0]; |
| 1734 | Ops[0] = Op; |
| 1735 | |
| 1736 | bool HasInFlag = Ops.back().getValueType() == MVT::Flag; |
| 1737 | for (unsigned i = 2, e = Ops.size()-HasInFlag; i < e; ) { |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 1738 | unsigned NumVals = cast<ConstantSDNode>(Ops[i])->getZExtValue() >> 3; |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1739 | for (++i; NumVals; ++i, --NumVals) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1740 | SDValue Op = LegalizeOp(Ops[i]); |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1741 | if (Op != Ops[i]) { |
| 1742 | Changed = true; |
| 1743 | Ops[i] = Op; |
| 1744 | } |
| 1745 | } |
Chris Lattner | ce7518c | 2006-01-26 22:24:51 +0000 | [diff] [blame] | 1746 | } |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1747 | |
| 1748 | if (HasInFlag) { |
| 1749 | Op = LegalizeOp(Ops.back()); |
| 1750 | Changed |= Op != Ops.back(); |
| 1751 | Ops.back() = Op; |
| 1752 | } |
| 1753 | |
| 1754 | if (Changed) |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 1755 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | ce7518c | 2006-01-26 22:24:51 +0000 | [diff] [blame] | 1756 | |
| 1757 | // INLINE asm returns a chain and flag, make sure to add both to the map. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1758 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 1759 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1760 | return Result.getValue(Op.getResNo()); |
Chris Lattner | 25a022c | 2006-07-11 01:40:09 +0000 | [diff] [blame] | 1761 | } |
Chris Lattner | c7af179 | 2005-01-07 22:12:08 +0000 | [diff] [blame] | 1762 | case ISD::BR: |
| 1763 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1764 | // Ensure that libcalls are emitted before a branch. |
| 1765 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1766 | Tmp1 = LegalizeOp(Tmp1); |
| 1767 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 1768 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1769 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Chris Lattner | c7af179 | 2005-01-07 22:12:08 +0000 | [diff] [blame] | 1770 | break; |
Nate Begeman | 37efe67 | 2006-04-22 18:53:45 +0000 | [diff] [blame] | 1771 | case ISD::BRIND: |
| 1772 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1773 | // Ensure that libcalls are emitted before a branch. |
| 1774 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1775 | Tmp1 = LegalizeOp(Tmp1); |
| 1776 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 1777 | |
| 1778 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
| 1779 | default: assert(0 && "Indirect target must be legal type (pointer)!"); |
| 1780 | case Legal: |
| 1781 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. |
| 1782 | break; |
| 1783 | } |
| 1784 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 1785 | break; |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1786 | case ISD::BR_JT: |
| 1787 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 1788 | // Ensure that libcalls are emitted before a branch. |
| 1789 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1790 | Tmp1 = LegalizeOp(Tmp1); |
| 1791 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 1792 | |
| 1793 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the jumptable node. |
| 1794 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
| 1795 | |
| 1796 | switch (TLI.getOperationAction(ISD::BR_JT, MVT::Other)) { |
| 1797 | default: assert(0 && "This action is not supported yet!"); |
| 1798 | case TargetLowering::Legal: break; |
| 1799 | case TargetLowering::Custom: |
| 1800 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1801 | if (Tmp1.getNode()) Result = Tmp1; |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1802 | break; |
| 1803 | case TargetLowering::Expand: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1804 | SDValue Chain = Result.getOperand(0); |
| 1805 | SDValue Table = Result.getOperand(1); |
| 1806 | SDValue Index = Result.getOperand(2); |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1807 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1808 | MVT PTy = TLI.getPointerTy(); |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 1809 | MachineFunction &MF = DAG.getMachineFunction(); |
| 1810 | unsigned EntrySize = MF.getJumpTableInfo()->getEntrySize(); |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1811 | Index= DAG.getNode(ISD::MUL, PTy, Index, DAG.getConstant(EntrySize, PTy)); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1812 | SDValue Addr = DAG.getNode(ISD::ADD, PTy, Index, Table); |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 1813 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1814 | SDValue LD; |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 1815 | switch (EntrySize) { |
| 1816 | default: assert(0 && "Size of jump table not supported yet."); break; |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 1817 | case 4: LD = DAG.getLoad(MVT::i32, Chain, Addr, |
Dan Gohman | 3069b87 | 2008-02-07 18:41:25 +0000 | [diff] [blame] | 1818 | PseudoSourceValue::getJumpTable(), 0); break; |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 1819 | case 8: LD = DAG.getLoad(MVT::i64, Chain, Addr, |
Dan Gohman | 3069b87 | 2008-02-07 18:41:25 +0000 | [diff] [blame] | 1820 | PseudoSourceValue::getJumpTable(), 0); break; |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 1821 | } |
| 1822 | |
Evan Cheng | cc41586 | 2007-11-09 01:32:10 +0000 | [diff] [blame] | 1823 | Addr = LD; |
Jim Laskey | acd80ac | 2006-12-14 19:17:33 +0000 | [diff] [blame] | 1824 | if (TLI.getTargetMachine().getRelocationModel() == Reloc::PIC_) { |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1825 | // For PIC, the sequence is: |
| 1826 | // BRIND(load(Jumptable + index) + RelocBase) |
Evan Cheng | cc41586 | 2007-11-09 01:32:10 +0000 | [diff] [blame] | 1827 | // RelocBase can be JumpTable, GOT or some sort of global base. |
| 1828 | if (PTy != MVT::i32) |
| 1829 | Addr = DAG.getNode(ISD::SIGN_EXTEND, PTy, Addr); |
| 1830 | Addr = DAG.getNode(ISD::ADD, PTy, Addr, |
| 1831 | TLI.getPICJumpTableRelocBase(Table, DAG)); |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1832 | } |
Evan Cheng | cc41586 | 2007-11-09 01:32:10 +0000 | [diff] [blame] | 1833 | Result = DAG.getNode(ISD::BRIND, MVT::Other, LD.getValue(1), Addr); |
Evan Cheng | 3d4ce11 | 2006-10-30 08:00:44 +0000 | [diff] [blame] | 1834 | } |
| 1835 | } |
| 1836 | break; |
Chris Lattner | c18ae4c | 2005-01-07 08:19:42 +0000 | [diff] [blame] | 1837 | case ISD::BRCOND: |
| 1838 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1839 | // Ensure that libcalls are emitted before a return. |
| 1840 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1841 | Tmp1 = LegalizeOp(Tmp1); |
| 1842 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 1843 | |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 1844 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
| 1845 | case Expand: assert(0 && "It's impossible to expand bools"); |
| 1846 | case Legal: |
| 1847 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the condition. |
| 1848 | break; |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 1849 | case Promote: { |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 1850 | Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the condition. |
Chris Lattner | f990817 | 2006-11-27 04:39:56 +0000 | [diff] [blame] | 1851 | |
| 1852 | // The top bits of the promoted condition are not necessarily zero, ensure |
| 1853 | // that the value is properly zero extended. |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 1854 | unsigned BitWidth = Tmp2.getValueSizeInBits(); |
Dan Gohman | ea859be | 2007-06-22 14:59:07 +0000 | [diff] [blame] | 1855 | if (!DAG.MaskedValueIsZero(Tmp2, |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 1856 | APInt::getHighBitsSet(BitWidth, BitWidth-1))) |
Chris Lattner | f990817 | 2006-11-27 04:39:56 +0000 | [diff] [blame] | 1857 | Tmp2 = DAG.getZeroExtendInReg(Tmp2, MVT::i1); |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 1858 | break; |
| 1859 | } |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 1860 | } |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1861 | |
| 1862 | // Basic block destination (Op#2) is always legal. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1863 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
Nate Begeman | 7cbd525 | 2005-08-16 19:49:35 +0000 | [diff] [blame] | 1864 | |
| 1865 | switch (TLI.getOperationAction(ISD::BRCOND, MVT::Other)) { |
| 1866 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1867 | case TargetLowering::Legal: break; |
| 1868 | case TargetLowering::Custom: |
| 1869 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1870 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1871 | break; |
Nate Begeman | 7cbd525 | 2005-08-16 19:49:35 +0000 | [diff] [blame] | 1872 | case TargetLowering::Expand: |
| 1873 | // Expand brcond's setcc into its constituent parts and create a BR_CC |
| 1874 | // Node. |
| 1875 | if (Tmp2.getOpcode() == ISD::SETCC) { |
| 1876 | Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, Tmp2.getOperand(2), |
| 1877 | Tmp2.getOperand(0), Tmp2.getOperand(1), |
| 1878 | Node->getOperand(2)); |
| 1879 | } else { |
| 1880 | Result = DAG.getNode(ISD::BR_CC, MVT::Other, Tmp1, |
| 1881 | DAG.getCondCode(ISD::SETNE), Tmp2, |
| 1882 | DAG.getConstant(0, Tmp2.getValueType()), |
| 1883 | Node->getOperand(2)); |
| 1884 | } |
| 1885 | break; |
Nate Begeman | 7cbd525 | 2005-08-16 19:49:35 +0000 | [diff] [blame] | 1886 | } |
| 1887 | break; |
| 1888 | case ISD::BR_CC: |
| 1889 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 1890 | // Ensure that libcalls are emitted before a branch. |
| 1891 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 1892 | Tmp1 = LegalizeOp(Tmp1); |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 1893 | Tmp2 = Node->getOperand(2); // LHS |
| 1894 | Tmp3 = Node->getOperand(3); // RHS |
| 1895 | Tmp4 = Node->getOperand(1); // CC |
| 1896 | |
| 1897 | LegalizeSetCCOperands(Tmp2, Tmp3, Tmp4); |
Evan Cheng | 722cb36 | 2006-12-18 22:55:34 +0000 | [diff] [blame] | 1898 | LastCALLSEQ_END = DAG.getEntryNode(); |
| 1899 | |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 1900 | // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, |
| 1901 | // the LHS is a legal SETCC itself. In this case, we need to compare |
| 1902 | // the result against zero to select between true and false values. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1903 | if (Tmp3.getNode() == 0) { |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 1904 | Tmp3 = DAG.getConstant(0, Tmp2.getValueType()); |
| 1905 | Tmp4 = DAG.getCondCode(ISD::SETNE); |
Chris Lattner | 181b7a3 | 2005-12-17 23:46:46 +0000 | [diff] [blame] | 1906 | } |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 1907 | |
| 1908 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp4, Tmp2, Tmp3, |
| 1909 | Node->getOperand(4)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1910 | |
Chris Lattner | 181b7a3 | 2005-12-17 23:46:46 +0000 | [diff] [blame] | 1911 | switch (TLI.getOperationAction(ISD::BR_CC, Tmp3.getValueType())) { |
| 1912 | default: assert(0 && "Unexpected action for BR_CC!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1913 | case TargetLowering::Legal: break; |
| 1914 | case TargetLowering::Custom: |
| 1915 | Tmp4 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1916 | if (Tmp4.getNode()) Result = Tmp4; |
Chris Lattner | 181b7a3 | 2005-12-17 23:46:46 +0000 | [diff] [blame] | 1917 | break; |
Nate Begeman | 7cbd525 | 2005-08-16 19:49:35 +0000 | [diff] [blame] | 1918 | } |
Chris Lattner | c18ae4c | 2005-01-07 08:19:42 +0000 | [diff] [blame] | 1919 | break; |
Evan Cheng | f3fd9fe | 2005-12-23 07:29:34 +0000 | [diff] [blame] | 1920 | case ISD::LOAD: { |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1921 | LoadSDNode *LD = cast<LoadSDNode>(Node); |
| 1922 | Tmp1 = LegalizeOp(LD->getChain()); // Legalize the chain. |
| 1923 | Tmp2 = LegalizeOp(LD->getBasePtr()); // Legalize the base pointer. |
Andrew Lenharth | 2d86ea2 | 2005-04-27 20:10:01 +0000 | [diff] [blame] | 1924 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1925 | ISD::LoadExtType ExtType = LD->getExtensionType(); |
| 1926 | if (ExtType == ISD::NON_EXTLOAD) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1927 | MVT VT = Node->getValueType(0); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1928 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); |
| 1929 | Tmp3 = Result.getValue(0); |
| 1930 | Tmp4 = Result.getValue(1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1931 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1932 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 1933 | default: assert(0 && "This action is not supported yet!"); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 1934 | case TargetLowering::Legal: |
| 1935 | // If this is an unaligned load and the target doesn't support it, |
| 1936 | // expand it. |
| 1937 | if (!TLI.allowsUnalignedMemoryAccesses()) { |
| 1938 | unsigned ABIAlignment = TLI.getTargetData()-> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1939 | getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 1940 | if (LD->getAlignment() < ABIAlignment){ |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1941 | Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), DAG, |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 1942 | TLI); |
| 1943 | Tmp3 = Result.getOperand(0); |
| 1944 | Tmp4 = Result.getOperand(1); |
Dale Johannesen | 907f28c | 2007-09-08 19:29:23 +0000 | [diff] [blame] | 1945 | Tmp3 = LegalizeOp(Tmp3); |
| 1946 | Tmp4 = LegalizeOp(Tmp4); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 1947 | } |
| 1948 | } |
| 1949 | break; |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1950 | case TargetLowering::Custom: |
| 1951 | Tmp1 = TLI.LowerOperation(Tmp3, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 1952 | if (Tmp1.getNode()) { |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1953 | Tmp3 = LegalizeOp(Tmp1); |
| 1954 | Tmp4 = LegalizeOp(Tmp1.getValue(1)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 1955 | } |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1956 | break; |
| 1957 | case TargetLowering::Promote: { |
| 1958 | // Only promote a load of vector type to another. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1959 | assert(VT.isVector() && "Cannot promote this load!"); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1960 | // Change base type to a different vector type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1961 | MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), VT); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1962 | |
| 1963 | Tmp1 = DAG.getLoad(NVT, Tmp1, Tmp2, LD->getSrcValue(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 1964 | LD->getSrcValueOffset(), |
| 1965 | LD->isVolatile(), LD->getAlignment()); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1966 | Tmp3 = LegalizeOp(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp1)); |
| 1967 | Tmp4 = LegalizeOp(Tmp1.getValue(1)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 1968 | break; |
Andrew Lenharth | 9d416f7 | 2005-06-30 19:22:37 +0000 | [diff] [blame] | 1969 | } |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1970 | } |
| 1971 | // Since loads produce two values, make sure to remember that we |
| 1972 | // legalized both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1973 | AddLegalizedOperand(SDValue(Node, 0), Tmp3); |
| 1974 | AddLegalizedOperand(SDValue(Node, 1), Tmp4); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 1975 | return Op.getResNo() ? Tmp4 : Tmp3; |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 1976 | } else { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1977 | MVT SrcVT = LD->getMemoryVT(); |
| 1978 | unsigned SrcWidth = SrcVT.getSizeInBits(); |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 1979 | int SVOffset = LD->getSrcValueOffset(); |
| 1980 | unsigned Alignment = LD->getAlignment(); |
| 1981 | bool isVolatile = LD->isVolatile(); |
| 1982 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1983 | if (SrcWidth != SrcVT.getStoreSizeInBits() && |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 1984 | // Some targets pretend to have an i1 loading operation, and actually |
| 1985 | // load an i8. This trick is correct for ZEXTLOAD because the top 7 |
| 1986 | // bits are guaranteed to be zero; it helps the optimizers understand |
| 1987 | // that these bits are zero. It is also useful for EXTLOAD, since it |
| 1988 | // tells the optimizers that those bits are undefined. It would be |
| 1989 | // nice to have an effective generic way of getting these benefits... |
| 1990 | // Until such a way is found, don't insist on promoting i1 here. |
| 1991 | (SrcVT != MVT::i1 || |
| 1992 | TLI.getLoadXAction(ExtType, MVT::i1) == TargetLowering::Promote)) { |
| 1993 | // Promote to a byte-sized load if not loading an integral number of |
| 1994 | // bytes. For example, promote EXTLOAD:i20 -> EXTLOAD:i24. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 1995 | unsigned NewWidth = SrcVT.getStoreSizeInBits(); |
| 1996 | MVT NVT = MVT::getIntegerVT(NewWidth); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 1997 | SDValue Ch; |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 1998 | |
| 1999 | // The extra bits are guaranteed to be zero, since we stored them that |
| 2000 | // way. A zext load from NVT thus automatically gives zext from SrcVT. |
| 2001 | |
| 2002 | ISD::LoadExtType NewExtType = |
| 2003 | ExtType == ISD::ZEXTLOAD ? ISD::ZEXTLOAD : ISD::EXTLOAD; |
| 2004 | |
| 2005 | Result = DAG.getExtLoad(NewExtType, Node->getValueType(0), |
| 2006 | Tmp1, Tmp2, LD->getSrcValue(), SVOffset, |
| 2007 | NVT, isVolatile, Alignment); |
| 2008 | |
| 2009 | Ch = Result.getValue(1); // The chain. |
| 2010 | |
| 2011 | if (ExtType == ISD::SEXTLOAD) |
| 2012 | // Having the top bits zero doesn't help when sign extending. |
| 2013 | Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), |
| 2014 | Result, DAG.getValueType(SrcVT)); |
| 2015 | else if (ExtType == ISD::ZEXTLOAD || NVT == Result.getValueType()) |
| 2016 | // All the top bits are guaranteed to be zero - inform the optimizers. |
| 2017 | Result = DAG.getNode(ISD::AssertZext, Result.getValueType(), Result, |
| 2018 | DAG.getValueType(SrcVT)); |
| 2019 | |
| 2020 | Tmp1 = LegalizeOp(Result); |
| 2021 | Tmp2 = LegalizeOp(Ch); |
| 2022 | } else if (SrcWidth & (SrcWidth - 1)) { |
| 2023 | // If not loading a power-of-2 number of bits, expand as two loads. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2024 | assert(SrcVT.isExtended() && !SrcVT.isVector() && |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2025 | "Unsupported extload!"); |
| 2026 | unsigned RoundWidth = 1 << Log2_32(SrcWidth); |
| 2027 | assert(RoundWidth < SrcWidth); |
| 2028 | unsigned ExtraWidth = SrcWidth - RoundWidth; |
| 2029 | assert(ExtraWidth < RoundWidth); |
| 2030 | assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && |
| 2031 | "Load size not an integral number of bytes!"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2032 | MVT RoundVT = MVT::getIntegerVT(RoundWidth); |
| 2033 | MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2034 | SDValue Lo, Hi, Ch; |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2035 | unsigned IncrementSize; |
| 2036 | |
| 2037 | if (TLI.isLittleEndian()) { |
| 2038 | // EXTLOAD:i24 -> ZEXTLOAD:i16 | (shl EXTLOAD@+2:i8, 16) |
| 2039 | // Load the bottom RoundWidth bits. |
| 2040 | Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, |
| 2041 | LD->getSrcValue(), SVOffset, RoundVT, isVolatile, |
| 2042 | Alignment); |
| 2043 | |
| 2044 | // Load the remaining ExtraWidth bits. |
| 2045 | IncrementSize = RoundWidth / 8; |
| 2046 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
| 2047 | DAG.getIntPtrConstant(IncrementSize)); |
| 2048 | Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, |
| 2049 | LD->getSrcValue(), SVOffset + IncrementSize, |
| 2050 | ExtraVT, isVolatile, |
| 2051 | MinAlign(Alignment, IncrementSize)); |
| 2052 | |
| 2053 | // Build a factor node to remember that this load is independent of the |
| 2054 | // other one. |
| 2055 | Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), |
| 2056 | Hi.getValue(1)); |
| 2057 | |
| 2058 | // Move the top bits to the right place. |
| 2059 | Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, |
| 2060 | DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); |
| 2061 | |
| 2062 | // Join the hi and lo parts. |
| 2063 | Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2064 | } else { |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2065 | // Big endian - avoid unaligned loads. |
| 2066 | // EXTLOAD:i24 -> (shl EXTLOAD:i16, 8) | ZEXTLOAD@+2:i8 |
| 2067 | // Load the top RoundWidth bits. |
| 2068 | Hi = DAG.getExtLoad(ExtType, Node->getValueType(0), Tmp1, Tmp2, |
| 2069 | LD->getSrcValue(), SVOffset, RoundVT, isVolatile, |
| 2070 | Alignment); |
| 2071 | |
| 2072 | // Load the remaining ExtraWidth bits. |
| 2073 | IncrementSize = RoundWidth / 8; |
| 2074 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
| 2075 | DAG.getIntPtrConstant(IncrementSize)); |
| 2076 | Lo = DAG.getExtLoad(ISD::ZEXTLOAD, Node->getValueType(0), Tmp1, Tmp2, |
| 2077 | LD->getSrcValue(), SVOffset + IncrementSize, |
| 2078 | ExtraVT, isVolatile, |
| 2079 | MinAlign(Alignment, IncrementSize)); |
| 2080 | |
| 2081 | // Build a factor node to remember that this load is independent of the |
| 2082 | // other one. |
| 2083 | Ch = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), |
| 2084 | Hi.getValue(1)); |
| 2085 | |
| 2086 | // Move the top bits to the right place. |
| 2087 | Hi = DAG.getNode(ISD::SHL, Hi.getValueType(), Hi, |
| 2088 | DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); |
| 2089 | |
| 2090 | // Join the hi and lo parts. |
| 2091 | Result = DAG.getNode(ISD::OR, Node->getValueType(0), Lo, Hi); |
| 2092 | } |
| 2093 | |
| 2094 | Tmp1 = LegalizeOp(Result); |
| 2095 | Tmp2 = LegalizeOp(Ch); |
| 2096 | } else { |
| 2097 | switch (TLI.getLoadXAction(ExtType, SrcVT)) { |
| 2098 | default: assert(0 && "This action is not supported yet!"); |
| 2099 | case TargetLowering::Custom: |
| 2100 | isCustom = true; |
| 2101 | // FALLTHROUGH |
| 2102 | case TargetLowering::Legal: |
| 2103 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, LD->getOffset()); |
| 2104 | Tmp1 = Result.getValue(0); |
| 2105 | Tmp2 = Result.getValue(1); |
| 2106 | |
| 2107 | if (isCustom) { |
| 2108 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2109 | if (Tmp3.getNode()) { |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2110 | Tmp1 = LegalizeOp(Tmp3); |
| 2111 | Tmp2 = LegalizeOp(Tmp3.getValue(1)); |
| 2112 | } |
| 2113 | } else { |
| 2114 | // If this is an unaligned load and the target doesn't support it, |
| 2115 | // expand it. |
| 2116 | if (!TLI.allowsUnalignedMemoryAccesses()) { |
| 2117 | unsigned ABIAlignment = TLI.getTargetData()-> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2118 | getABITypeAlignment(LD->getMemoryVT().getTypeForMVT()); |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2119 | if (LD->getAlignment() < ABIAlignment){ |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2120 | Result = ExpandUnalignedLoad(cast<LoadSDNode>(Result.getNode()), DAG, |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2121 | TLI); |
| 2122 | Tmp1 = Result.getOperand(0); |
| 2123 | Tmp2 = Result.getOperand(1); |
| 2124 | Tmp1 = LegalizeOp(Tmp1); |
| 2125 | Tmp2 = LegalizeOp(Tmp2); |
| 2126 | } |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2127 | } |
| 2128 | } |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2129 | break; |
| 2130 | case TargetLowering::Expand: |
| 2131 | // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND |
| 2132 | if (SrcVT == MVT::f32 && Node->getValueType(0) == MVT::f64) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2133 | SDValue Load = DAG.getLoad(SrcVT, Tmp1, Tmp2, LD->getSrcValue(), |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2134 | LD->getSrcValueOffset(), |
| 2135 | LD->isVolatile(), LD->getAlignment()); |
| 2136 | Result = DAG.getNode(ISD::FP_EXTEND, Node->getValueType(0), Load); |
| 2137 | Tmp1 = LegalizeOp(Result); // Relegalize new nodes. |
| 2138 | Tmp2 = LegalizeOp(Load.getValue(1)); |
| 2139 | break; |
| 2140 | } |
| 2141 | assert(ExtType != ISD::EXTLOAD &&"EXTLOAD should always be supported!"); |
| 2142 | // Turn the unsupported load into an EXTLOAD followed by an explicit |
| 2143 | // zero/sign extend inreg. |
| 2144 | Result = DAG.getExtLoad(ISD::EXTLOAD, Node->getValueType(0), |
| 2145 | Tmp1, Tmp2, LD->getSrcValue(), |
| 2146 | LD->getSrcValueOffset(), SrcVT, |
| 2147 | LD->isVolatile(), LD->getAlignment()); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2148 | SDValue ValRes; |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2149 | if (ExtType == ISD::SEXTLOAD) |
| 2150 | ValRes = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), |
| 2151 | Result, DAG.getValueType(SrcVT)); |
| 2152 | else |
| 2153 | ValRes = DAG.getZeroExtendInReg(Result, SrcVT); |
| 2154 | Tmp1 = LegalizeOp(ValRes); // Relegalize new nodes. |
| 2155 | Tmp2 = LegalizeOp(Result.getValue(1)); // Relegalize new nodes. |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 2156 | break; |
| 2157 | } |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 2158 | } |
Duncan Sands | f9c98e6 | 2008-01-23 20:39:46 +0000 | [diff] [blame] | 2159 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 2160 | // Since loads produce two values, make sure to remember that we legalized |
| 2161 | // both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2162 | AddLegalizedOperand(SDValue(Node, 0), Tmp1); |
| 2163 | AddLegalizedOperand(SDValue(Node, 1), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2164 | return Op.getResNo() ? Tmp2 : Tmp1; |
Chris Lattner | 01ff721 | 2005-04-10 22:54:25 +0000 | [diff] [blame] | 2165 | } |
Chris Lattner | 01ff721 | 2005-04-10 22:54:25 +0000 | [diff] [blame] | 2166 | } |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2167 | case ISD::EXTRACT_ELEMENT: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2168 | MVT OpTy = Node->getOperand(0).getValueType(); |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2169 | switch (getTypeAction(OpTy)) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2170 | default: assert(0 && "EXTRACT_ELEMENT action for type unimplemented!"); |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2171 | case Legal: |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 2172 | if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) { |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2173 | // 1 -> Hi |
| 2174 | Result = DAG.getNode(ISD::SRL, OpTy, Node->getOperand(0), |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2175 | DAG.getConstant(OpTy.getSizeInBits()/2, |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2176 | TLI.getShiftAmountTy())); |
| 2177 | Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Result); |
| 2178 | } else { |
| 2179 | // 0 -> Lo |
| 2180 | Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), |
| 2181 | Node->getOperand(0)); |
| 2182 | } |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2183 | break; |
| 2184 | case Expand: |
| 2185 | // Get both the low and high parts. |
| 2186 | ExpandOp(Node->getOperand(0), Tmp1, Tmp2); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 2187 | if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2188 | Result = Tmp2; // 1 -> Hi |
| 2189 | else |
| 2190 | Result = Tmp1; // 0 -> Lo |
| 2191 | break; |
| 2192 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2193 | break; |
Nate Begeman | 5dc897b | 2005-10-19 00:06:56 +0000 | [diff] [blame] | 2194 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2195 | |
| 2196 | case ISD::CopyToReg: |
| 2197 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 2198 | |
Chris Lattner | c9c60f6 | 2005-08-24 16:35:28 +0000 | [diff] [blame] | 2199 | assert(isTypeLegal(Node->getOperand(2).getValueType()) && |
Chris Lattner | d5d0f9b | 2005-08-16 21:55:35 +0000 | [diff] [blame] | 2200 | "Register type must be legal!"); |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 2201 | // Legalize the incoming value (must be a legal type). |
Chris Lattner | d5d0f9b | 2005-08-16 21:55:35 +0000 | [diff] [blame] | 2202 | Tmp2 = LegalizeOp(Node->getOperand(2)); |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 2203 | if (Node->getNumValues() == 1) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2204 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2); |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 2205 | } else { |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 2206 | assert(Node->getNumValues() == 2 && "Unknown CopyToReg"); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2207 | if (Node->getNumOperands() == 4) { |
Chris Lattner | f1a47c3 | 2005-12-18 15:36:21 +0000 | [diff] [blame] | 2208 | Tmp3 = LegalizeOp(Node->getOperand(3)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2209 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1), Tmp2, |
| 2210 | Tmp3); |
| 2211 | } else { |
| 2212 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1),Tmp2); |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 2213 | } |
| 2214 | |
| 2215 | // Since this produces two values, make sure to remember that we legalized |
| 2216 | // both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2217 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 2218 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2219 | return Result; |
Chris Lattner | 7310fb1 | 2005-12-18 15:27:43 +0000 | [diff] [blame] | 2220 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2221 | break; |
| 2222 | |
| 2223 | case ISD::RET: |
| 2224 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 2225 | |
| 2226 | // Ensure that libcalls are emitted before a return. |
| 2227 | Tmp1 = DAG.getNode(ISD::TokenFactor, MVT::Other, Tmp1, LastCALLSEQ_END); |
| 2228 | Tmp1 = LegalizeOp(Tmp1); |
| 2229 | LastCALLSEQ_END = DAG.getEntryNode(); |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2230 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2231 | switch (Node->getNumOperands()) { |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2232 | case 3: // ret val |
Evan Cheng | 98f8aeb | 2006-04-11 06:33:39 +0000 | [diff] [blame] | 2233 | Tmp2 = Node->getOperand(1); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2234 | Tmp3 = Node->getOperand(2); // Signness |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2235 | switch (getTypeAction(Tmp2.getValueType())) { |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2236 | case Legal: |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2237 | Result = DAG.UpdateNodeOperands(Result, Tmp1, LegalizeOp(Tmp2), Tmp3); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2238 | break; |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2239 | case Expand: |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2240 | if (!Tmp2.getValueType().isVector()) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2241 | SDValue Lo, Hi; |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2242 | ExpandOp(Tmp2, Lo, Hi); |
Chris Lattner | edf2e8d | 2007-03-06 20:01:06 +0000 | [diff] [blame] | 2243 | |
| 2244 | // Big endian systems want the hi reg first. |
Duncan Sands | 0753fc1 | 2008-02-11 10:37:04 +0000 | [diff] [blame] | 2245 | if (TLI.isBigEndian()) |
Chris Lattner | edf2e8d | 2007-03-06 20:01:06 +0000 | [diff] [blame] | 2246 | std::swap(Lo, Hi); |
| 2247 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2248 | if (Hi.getNode()) |
Evan Cheng | 13acce3 | 2006-12-11 19:27:14 +0000 | [diff] [blame] | 2249 | Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); |
| 2250 | else |
| 2251 | Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3); |
Chris Lattner | f921a51 | 2006-08-21 20:24:53 +0000 | [diff] [blame] | 2252 | Result = LegalizeOp(Result); |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2253 | } else { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2254 | SDNode *InVal = Tmp2.getNode(); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2255 | int InIx = Tmp2.getResNo(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2256 | unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); |
| 2257 | MVT EVT = InVal->getValueType(InIx).getVectorElementType(); |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2258 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2259 | // Figure out if there is a simple type corresponding to this Vector |
Reid Spencer | ac9dcb9 | 2007-02-15 03:39:18 +0000 | [diff] [blame] | 2260 | // type. If so, convert to the vector type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2261 | MVT TVT = MVT::getVectorVT(EVT, NumElems); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2262 | if (TLI.isTypeLegal(TVT)) { |
Reid Spencer | ac9dcb9 | 2007-02-15 03:39:18 +0000 | [diff] [blame] | 2263 | // Turn this into a return of the vector type. |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2264 | Tmp2 = LegalizeOp(Tmp2); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2265 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2266 | } else if (NumElems == 1) { |
| 2267 | // Turn this into a return of the scalar type. |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2268 | Tmp2 = ScalarizeVectorOp(Tmp2); |
| 2269 | Tmp2 = LegalizeOp(Tmp2); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2270 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | b49e52c | 2006-04-11 02:00:08 +0000 | [diff] [blame] | 2271 | |
| 2272 | // FIXME: Returns of gcc generic vectors smaller than a legal type |
| 2273 | // should be returned in integer registers! |
| 2274 | |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2275 | // The scalarized value type may not be legal, e.g. it might require |
| 2276 | // promotion or expansion. Relegalize the return. |
| 2277 | Result = LegalizeOp(Result); |
| 2278 | } else { |
Chris Lattner | b49e52c | 2006-04-11 02:00:08 +0000 | [diff] [blame] | 2279 | // FIXME: Returns of gcc generic vectors larger than a legal vector |
| 2280 | // type should be returned by reference! |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2281 | SDValue Lo, Hi; |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2282 | SplitVectorOp(Tmp2, Lo, Hi); |
Chris Lattner | fea997a | 2007-02-01 04:55:59 +0000 | [diff] [blame] | 2283 | Result = DAG.getNode(ISD::RET, MVT::Other, Tmp1, Lo, Tmp3, Hi,Tmp3); |
Chris Lattner | f87324e | 2006-04-11 01:31:51 +0000 | [diff] [blame] | 2284 | Result = LegalizeOp(Result); |
| 2285 | } |
| 2286 | } |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 2287 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2288 | case Promote: |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 2289 | Tmp2 = PromoteOp(Node->getOperand(1)); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2290 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2291 | Result = LegalizeOp(Result); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 2292 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2293 | } |
| 2294 | break; |
| 2295 | case 1: // ret void |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2296 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2297 | break; |
| 2298 | default: { // ret <values> |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2299 | SmallVector<SDValue, 8> NewValues; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2300 | NewValues.push_back(Tmp1); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2301 | for (unsigned i = 1, e = Node->getNumOperands(); i < e; i += 2) |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2302 | switch (getTypeAction(Node->getOperand(i).getValueType())) { |
| 2303 | case Legal: |
Chris Lattner | 4e6c746 | 2005-01-08 19:27:05 +0000 | [diff] [blame] | 2304 | NewValues.push_back(LegalizeOp(Node->getOperand(i))); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2305 | NewValues.push_back(Node->getOperand(i+1)); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2306 | break; |
| 2307 | case Expand: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2308 | SDValue Lo, Hi; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2309 | assert(!Node->getOperand(i).getValueType().isExtended() && |
Chris Lattner | b49e52c | 2006-04-11 02:00:08 +0000 | [diff] [blame] | 2310 | "FIXME: TODO: implement returning non-legal vector types!"); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2311 | ExpandOp(Node->getOperand(i), Lo, Hi); |
| 2312 | NewValues.push_back(Lo); |
Evan Cheng | 8e7d056 | 2006-05-26 23:09:09 +0000 | [diff] [blame] | 2313 | NewValues.push_back(Node->getOperand(i+1)); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2314 | if (Hi.getNode()) { |
Evan Cheng | 13acce3 | 2006-12-11 19:27:14 +0000 | [diff] [blame] | 2315 | NewValues.push_back(Hi); |
| 2316 | NewValues.push_back(Node->getOperand(i+1)); |
| 2317 | } |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 2318 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2319 | } |
| 2320 | case Promote: |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 2321 | assert(0 && "Can't promote multiple return value yet!"); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2322 | } |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2323 | |
| 2324 | if (NewValues.size() == Node->getNumOperands()) |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 2325 | Result = DAG.UpdateNodeOperands(Result, &NewValues[0],NewValues.size()); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2326 | else |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 2327 | Result = DAG.getNode(ISD::RET, MVT::Other, |
| 2328 | &NewValues[0], NewValues.size()); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2329 | break; |
| 2330 | } |
| 2331 | } |
Evan Cheng | 17c428e | 2006-01-06 00:41:43 +0000 | [diff] [blame] | 2332 | |
Chris Lattner | 6862dbc | 2006-01-29 21:02:23 +0000 | [diff] [blame] | 2333 | if (Result.getOpcode() == ISD::RET) { |
| 2334 | switch (TLI.getOperationAction(Result.getOpcode(), MVT::Other)) { |
| 2335 | default: assert(0 && "This action is not supported yet!"); |
| 2336 | case TargetLowering::Legal: break; |
| 2337 | case TargetLowering::Custom: |
| 2338 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2339 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 6862dbc | 2006-01-29 21:02:23 +0000 | [diff] [blame] | 2340 | break; |
| 2341 | } |
Evan Cheng | 17c428e | 2006-01-06 00:41:43 +0000 | [diff] [blame] | 2342 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2343 | break; |
Evan Cheng | f3fd9fe | 2005-12-23 07:29:34 +0000 | [diff] [blame] | 2344 | case ISD::STORE: { |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2345 | StoreSDNode *ST = cast<StoreSDNode>(Node); |
| 2346 | Tmp1 = LegalizeOp(ST->getChain()); // Legalize the chain. |
| 2347 | Tmp2 = LegalizeOp(ST->getBasePtr()); // Legalize the pointer. |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2348 | int SVOffset = ST->getSrcValueOffset(); |
| 2349 | unsigned Alignment = ST->getAlignment(); |
| 2350 | bool isVolatile = ST->isVolatile(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2351 | |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2352 | if (!ST->isTruncatingStore()) { |
Chris Lattner | d93d46e | 2006-12-12 04:18:56 +0000 | [diff] [blame] | 2353 | // Turn 'store float 1.0, Ptr' -> 'store int 0x12345678, Ptr' |
| 2354 | // FIXME: We shouldn't do this for TargetConstantFP's. |
| 2355 | // FIXME: move this to the DAG Combiner! Note that we can't regress due |
| 2356 | // to phase ordering between legalized code and the dag combiner. This |
| 2357 | // probably means that we need to integrate dag combiner and legalizer |
| 2358 | // together. |
Dale Johannesen | 9e3d3ab | 2007-09-14 22:26:36 +0000 | [diff] [blame] | 2359 | // We generally can't do this one for long doubles. |
Chris Lattner | 2b4c279 | 2007-10-13 06:35:54 +0000 | [diff] [blame] | 2360 | if (ConstantFPSDNode *CFP = dyn_cast<ConstantFPSDNode>(ST->getValue())) { |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2361 | if (CFP->getValueType(0) == MVT::f32 && |
| 2362 | getTypeAction(MVT::i32) == Legal) { |
Dan Gohman | 6cf9b8a | 2008-03-11 00:11:06 +0000 | [diff] [blame] | 2363 | Tmp3 = DAG.getConstant(CFP->getValueAPF(). |
| 2364 | convertToAPInt().zextOrTrunc(32), |
Dale Johannesen | 3f6eb74 | 2007-09-11 18:32:33 +0000 | [diff] [blame] | 2365 | MVT::i32); |
Dale Johannesen | 9e3d3ab | 2007-09-14 22:26:36 +0000 | [diff] [blame] | 2366 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2367 | SVOffset, isVolatile, Alignment); |
| 2368 | break; |
| 2369 | } else if (CFP->getValueType(0) == MVT::f64) { |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2370 | // If this target supports 64-bit registers, do a single 64-bit store. |
| 2371 | if (getTypeAction(MVT::i64) == Legal) { |
| 2372 | Tmp3 = DAG.getConstant(CFP->getValueAPF().convertToAPInt(). |
Dan Gohman | 6cf9b8a | 2008-03-11 00:11:06 +0000 | [diff] [blame] | 2373 | zextOrTrunc(64), MVT::i64); |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2374 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2375 | SVOffset, isVolatile, Alignment); |
| 2376 | break; |
Duncan Sands | d4b9c17 | 2008-06-13 19:07:40 +0000 | [diff] [blame] | 2377 | } else if (getTypeAction(MVT::i32) == Legal && !ST->isVolatile()) { |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2378 | // Otherwise, if the target supports 32-bit registers, use 2 32-bit |
| 2379 | // stores. If the target supports neither 32- nor 64-bits, this |
| 2380 | // xform is certainly not worth it. |
Dan Gohman | 6cf9b8a | 2008-03-11 00:11:06 +0000 | [diff] [blame] | 2381 | const APInt &IntVal =CFP->getValueAPF().convertToAPInt(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2382 | SDValue Lo = DAG.getConstant(APInt(IntVal).trunc(32), MVT::i32); |
| 2383 | SDValue Hi = DAG.getConstant(IntVal.lshr(32).trunc(32), MVT::i32); |
Duncan Sands | 0753fc1 | 2008-02-11 10:37:04 +0000 | [diff] [blame] | 2384 | if (TLI.isBigEndian()) std::swap(Lo, Hi); |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2385 | |
| 2386 | Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), |
| 2387 | SVOffset, isVolatile, Alignment); |
| 2388 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 2389 | DAG.getIntPtrConstant(4)); |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2390 | Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset+4, |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 2391 | isVolatile, MinAlign(Alignment, 4U)); |
Chris Lattner | 3cb9351 | 2007-10-15 05:46:06 +0000 | [diff] [blame] | 2392 | |
| 2393 | Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); |
| 2394 | break; |
| 2395 | } |
Chris Lattner | d93d46e | 2006-12-12 04:18:56 +0000 | [diff] [blame] | 2396 | } |
Chris Lattner | d93d46e | 2006-12-12 04:18:56 +0000 | [diff] [blame] | 2397 | } |
| 2398 | |
Dan Gohman | b625f2f | 2008-01-30 00:15:11 +0000 | [diff] [blame] | 2399 | switch (getTypeAction(ST->getMemoryVT())) { |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2400 | case Legal: { |
| 2401 | Tmp3 = LegalizeOp(ST->getValue()); |
| 2402 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, |
| 2403 | ST->getOffset()); |
Evan Cheng | f3fd9fe | 2005-12-23 07:29:34 +0000 | [diff] [blame] | 2404 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2405 | MVT VT = Tmp3.getValueType(); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2406 | switch (TLI.getOperationAction(ISD::STORE, VT)) { |
| 2407 | default: assert(0 && "This action is not supported yet!"); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2408 | case TargetLowering::Legal: |
| 2409 | // If this is an unaligned store and the target doesn't support it, |
| 2410 | // expand it. |
| 2411 | if (!TLI.allowsUnalignedMemoryAccesses()) { |
| 2412 | unsigned ABIAlignment = TLI.getTargetData()-> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2413 | getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2414 | if (ST->getAlignment() < ABIAlignment) |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2415 | Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), DAG, |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2416 | TLI); |
| 2417 | } |
| 2418 | break; |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2419 | case TargetLowering::Custom: |
| 2420 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2421 | if (Tmp1.getNode()) Result = Tmp1; |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2422 | break; |
| 2423 | case TargetLowering::Promote: |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2424 | assert(VT.isVector() && "Unknown legal promote case!"); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2425 | Tmp3 = DAG.getNode(ISD::BIT_CONVERT, |
| 2426 | TLI.getTypeToPromoteTo(ISD::STORE, VT), Tmp3); |
| 2427 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2428 | ST->getSrcValue(), SVOffset, isVolatile, |
| 2429 | Alignment); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2430 | break; |
| 2431 | } |
| 2432 | break; |
| 2433 | } |
| 2434 | case Promote: |
| 2435 | // Truncate the value and store the result. |
| 2436 | Tmp3 = PromoteOp(ST->getValue()); |
| 2437 | Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
Dan Gohman | b625f2f | 2008-01-30 00:15:11 +0000 | [diff] [blame] | 2438 | SVOffset, ST->getMemoryVT(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2439 | isVolatile, Alignment); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2440 | break; |
| 2441 | |
| 2442 | case Expand: |
| 2443 | unsigned IncrementSize = 0; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2444 | SDValue Lo, Hi; |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2445 | |
| 2446 | // If this is a vector type, then we have to calculate the increment as |
| 2447 | // the product of the element size in bytes, and the number of elements |
| 2448 | // in the high half of the vector. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2449 | if (ST->getValue().getValueType().isVector()) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2450 | SDNode *InVal = ST->getValue().getNode(); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2451 | int InIx = ST->getValue().getResNo(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2452 | MVT InVT = InVal->getValueType(InIx); |
| 2453 | unsigned NumElems = InVT.getVectorNumElements(); |
| 2454 | MVT EVT = InVT.getVectorElementType(); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2455 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2456 | // Figure out if there is a simple type corresponding to this Vector |
Reid Spencer | ac9dcb9 | 2007-02-15 03:39:18 +0000 | [diff] [blame] | 2457 | // type. If so, convert to the vector type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2458 | MVT TVT = MVT::getVectorVT(EVT, NumElems); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 2459 | if (TLI.isTypeLegal(TVT)) { |
Reid Spencer | ac9dcb9 | 2007-02-15 03:39:18 +0000 | [diff] [blame] | 2460 | // Turn this into a normal store of the vector type. |
Dan Gohman | 21be384 | 2008-02-15 18:11:59 +0000 | [diff] [blame] | 2461 | Tmp3 = LegalizeOp(ST->getValue()); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2462 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2463 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2464 | Result = LegalizeOp(Result); |
| 2465 | break; |
| 2466 | } else if (NumElems == 1) { |
| 2467 | // Turn this into a normal store of the scalar type. |
Dan Gohman | 21be384 | 2008-02-15 18:11:59 +0000 | [diff] [blame] | 2468 | Tmp3 = ScalarizeVectorOp(ST->getValue()); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2469 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2470 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2471 | // The scalarized value type may not be legal, e.g. it might require |
| 2472 | // promotion or expansion. Relegalize the scalar store. |
| 2473 | Result = LegalizeOp(Result); |
| 2474 | break; |
| 2475 | } else { |
Dan Gohman | 21be384 | 2008-02-15 18:11:59 +0000 | [diff] [blame] | 2476 | SplitVectorOp(ST->getValue(), Lo, Hi); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2477 | IncrementSize = Lo.getNode()->getValueType(0).getVectorNumElements() * |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2478 | EVT.getSizeInBits()/8; |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2479 | } |
| 2480 | } else { |
Dan Gohman | 21be384 | 2008-02-15 18:11:59 +0000 | [diff] [blame] | 2481 | ExpandOp(ST->getValue(), Lo, Hi); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2482 | IncrementSize = Hi.getNode() ? Hi.getValueType().getSizeInBits()/8 : 0; |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2483 | |
Duncan Sands | 0753fc1 | 2008-02-11 10:37:04 +0000 | [diff] [blame] | 2484 | if (TLI.isBigEndian()) |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2485 | std::swap(Lo, Hi); |
| 2486 | } |
| 2487 | |
| 2488 | Lo = DAG.getStore(Tmp1, Lo, Tmp2, ST->getSrcValue(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2489 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 7b2b5c8 | 2006-12-12 19:53:13 +0000 | [diff] [blame] | 2490 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2491 | if (Hi.getNode() == NULL) { |
Evan Cheng | 7b2b5c8 | 2006-12-12 19:53:13 +0000 | [diff] [blame] | 2492 | // Must be int <-> float one-to-one expansion. |
| 2493 | Result = Lo; |
| 2494 | break; |
| 2495 | } |
| 2496 | |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2497 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 2498 | DAG.getIntPtrConstant(IncrementSize)); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2499 | assert(isTypeLegal(Tmp2.getValueType()) && |
| 2500 | "Pointers must be legal!"); |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2501 | SVOffset += IncrementSize; |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 2502 | Alignment = MinAlign(Alignment, IncrementSize); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2503 | Hi = DAG.getStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 2504 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2505 | Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); |
| 2506 | break; |
| 2507 | } |
| 2508 | } else { |
Chris Lattner | ddf8956 | 2008-01-17 19:59:44 +0000 | [diff] [blame] | 2509 | switch (getTypeAction(ST->getValue().getValueType())) { |
| 2510 | case Legal: |
| 2511 | Tmp3 = LegalizeOp(ST->getValue()); |
| 2512 | break; |
| 2513 | case Promote: |
| 2514 | // We can promote the value, the truncstore will still take care of it. |
| 2515 | Tmp3 = PromoteOp(ST->getValue()); |
| 2516 | break; |
| 2517 | case Expand: |
| 2518 | // Just store the low part. This may become a non-trunc store, so make |
| 2519 | // sure to use getTruncStore, not UpdateNodeOperands below. |
| 2520 | ExpandOp(ST->getValue(), Tmp3, Tmp4); |
| 2521 | return DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2522 | SVOffset, MVT::i8, isVolatile, Alignment); |
| 2523 | } |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 2524 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2525 | MVT StVT = ST->getMemoryVT(); |
| 2526 | unsigned StWidth = StVT.getSizeInBits(); |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2527 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2528 | if (StWidth != StVT.getStoreSizeInBits()) { |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2529 | // Promote to a byte-sized store with upper bits zero if not |
| 2530 | // storing an integral number of bytes. For example, promote |
| 2531 | // TRUNCSTORE:i1 X -> TRUNCSTORE:i8 (and X, 1) |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2532 | MVT NVT = MVT::getIntegerVT(StVT.getStoreSizeInBits()); |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2533 | Tmp3 = DAG.getZeroExtendInReg(Tmp3, StVT); |
| 2534 | Result = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2535 | SVOffset, NVT, isVolatile, Alignment); |
| 2536 | } else if (StWidth & (StWidth - 1)) { |
| 2537 | // If not storing a power-of-2 number of bits, expand as two stores. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2538 | assert(StVT.isExtended() && !StVT.isVector() && |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2539 | "Unsupported truncstore!"); |
| 2540 | unsigned RoundWidth = 1 << Log2_32(StWidth); |
| 2541 | assert(RoundWidth < StWidth); |
| 2542 | unsigned ExtraWidth = StWidth - RoundWidth; |
| 2543 | assert(ExtraWidth < RoundWidth); |
| 2544 | assert(!(RoundWidth % 8) && !(ExtraWidth % 8) && |
| 2545 | "Store size not an integral number of bytes!"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2546 | MVT RoundVT = MVT::getIntegerVT(RoundWidth); |
| 2547 | MVT ExtraVT = MVT::getIntegerVT(ExtraWidth); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2548 | SDValue Lo, Hi; |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2549 | unsigned IncrementSize; |
| 2550 | |
| 2551 | if (TLI.isLittleEndian()) { |
| 2552 | // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 X, TRUNCSTORE@+2:i8 (srl X, 16) |
| 2553 | // Store the bottom RoundWidth bits. |
| 2554 | Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2555 | SVOffset, RoundVT, |
| 2556 | isVolatile, Alignment); |
| 2557 | |
| 2558 | // Store the remaining ExtraWidth bits. |
| 2559 | IncrementSize = RoundWidth / 8; |
| 2560 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
| 2561 | DAG.getIntPtrConstant(IncrementSize)); |
| 2562 | Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, |
| 2563 | DAG.getConstant(RoundWidth, TLI.getShiftAmountTy())); |
| 2564 | Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), |
| 2565 | SVOffset + IncrementSize, ExtraVT, isVolatile, |
| 2566 | MinAlign(Alignment, IncrementSize)); |
| 2567 | } else { |
| 2568 | // Big endian - avoid unaligned stores. |
| 2569 | // TRUNCSTORE:i24 X -> TRUNCSTORE:i16 (srl X, 8), TRUNCSTORE@+2:i8 X |
| 2570 | // Store the top RoundWidth bits. |
| 2571 | Hi = DAG.getNode(ISD::SRL, Tmp3.getValueType(), Tmp3, |
| 2572 | DAG.getConstant(ExtraWidth, TLI.getShiftAmountTy())); |
| 2573 | Hi = DAG.getTruncStore(Tmp1, Hi, Tmp2, ST->getSrcValue(), SVOffset, |
| 2574 | RoundVT, isVolatile, Alignment); |
| 2575 | |
| 2576 | // Store the remaining ExtraWidth bits. |
| 2577 | IncrementSize = RoundWidth / 8; |
| 2578 | Tmp2 = DAG.getNode(ISD::ADD, Tmp2.getValueType(), Tmp2, |
| 2579 | DAG.getIntPtrConstant(IncrementSize)); |
| 2580 | Lo = DAG.getTruncStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), |
| 2581 | SVOffset + IncrementSize, ExtraVT, isVolatile, |
| 2582 | MinAlign(Alignment, IncrementSize)); |
Lauro Ramos Venancio | f3c13c8 | 2007-08-01 19:34:21 +0000 | [diff] [blame] | 2583 | } |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2584 | |
| 2585 | // The order of the stores doesn't matter. |
| 2586 | Result = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo, Hi); |
| 2587 | } else { |
| 2588 | if (Tmp1 != ST->getChain() || Tmp3 != ST->getValue() || |
| 2589 | Tmp2 != ST->getBasePtr()) |
| 2590 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp3, Tmp2, |
| 2591 | ST->getOffset()); |
| 2592 | |
| 2593 | switch (TLI.getTruncStoreAction(ST->getValue().getValueType(), StVT)) { |
| 2594 | default: assert(0 && "This action is not supported yet!"); |
| 2595 | case TargetLowering::Legal: |
| 2596 | // If this is an unaligned store and the target doesn't support it, |
| 2597 | // expand it. |
| 2598 | if (!TLI.allowsUnalignedMemoryAccesses()) { |
| 2599 | unsigned ABIAlignment = TLI.getTargetData()-> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2600 | getABITypeAlignment(ST->getMemoryVT().getTypeForMVT()); |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2601 | if (ST->getAlignment() < ABIAlignment) |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2602 | Result = ExpandUnalignedStore(cast<StoreSDNode>(Result.getNode()), DAG, |
Duncan Sands | 7e85720 | 2008-01-22 07:17:34 +0000 | [diff] [blame] | 2603 | TLI); |
| 2604 | } |
| 2605 | break; |
| 2606 | case TargetLowering::Custom: |
| 2607 | Result = TLI.LowerOperation(Result, DAG); |
| 2608 | break; |
| 2609 | case Expand: |
| 2610 | // TRUNCSTORE:i16 i32 -> STORE i16 |
| 2611 | assert(isTypeLegal(StVT) && "Do not know how to expand this store!"); |
| 2612 | Tmp3 = DAG.getNode(ISD::TRUNCATE, StVT, Tmp3); |
| 2613 | Result = DAG.getStore(Tmp1, Tmp3, Tmp2, ST->getSrcValue(), SVOffset, |
| 2614 | isVolatile, Alignment); |
| 2615 | break; |
| 2616 | } |
Evan Cheng | f3fd9fe | 2005-12-23 07:29:34 +0000 | [diff] [blame] | 2617 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2618 | } |
| 2619 | break; |
Evan Cheng | f3fd9fe | 2005-12-23 07:29:34 +0000 | [diff] [blame] | 2620 | } |
Andrew Lenharth | 9576212 | 2005-03-31 21:24:06 +0000 | [diff] [blame] | 2621 | case ISD::PCMARKER: |
| 2622 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2623 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Andrew Lenharth | 9576212 | 2005-03-31 21:24:06 +0000 | [diff] [blame] | 2624 | break; |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2625 | case ISD::STACKSAVE: |
| 2626 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2627 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 2628 | Tmp1 = Result.getValue(0); |
| 2629 | Tmp2 = Result.getValue(1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2630 | |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2631 | switch (TLI.getOperationAction(ISD::STACKSAVE, MVT::Other)) { |
| 2632 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2633 | case TargetLowering::Legal: break; |
| 2634 | case TargetLowering::Custom: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2635 | Tmp3 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2636 | if (Tmp3.getNode()) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2637 | Tmp1 = LegalizeOp(Tmp3); |
| 2638 | Tmp2 = LegalizeOp(Tmp3.getValue(1)); |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2639 | } |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2640 | break; |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2641 | case TargetLowering::Expand: |
Chris Lattner | 4f0d8e4 | 2006-01-13 17:48:44 +0000 | [diff] [blame] | 2642 | // Expand to CopyFromReg if the target set |
| 2643 | // StackPointerRegisterToSaveRestore. |
| 2644 | if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2645 | Tmp1 = DAG.getCopyFromReg(Result.getOperand(0), SP, |
Chris Lattner | 4f0d8e4 | 2006-01-13 17:48:44 +0000 | [diff] [blame] | 2646 | Node->getValueType(0)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2647 | Tmp2 = Tmp1.getValue(1); |
Chris Lattner | 4f0d8e4 | 2006-01-13 17:48:44 +0000 | [diff] [blame] | 2648 | } else { |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2649 | Tmp1 = DAG.getNode(ISD::UNDEF, Node->getValueType(0)); |
| 2650 | Tmp2 = Node->getOperand(0); |
Chris Lattner | 4f0d8e4 | 2006-01-13 17:48:44 +0000 | [diff] [blame] | 2651 | } |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2652 | break; |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2653 | } |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2654 | |
| 2655 | // Since stacksave produce two values, make sure to remember that we |
| 2656 | // legalized both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2657 | AddLegalizedOperand(SDValue(Node, 0), Tmp1); |
| 2658 | AddLegalizedOperand(SDValue(Node, 1), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2659 | return Op.getResNo() ? Tmp2 : Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2660 | |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2661 | case ISD::STACKRESTORE: |
| 2662 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 2663 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2664 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2665 | |
| 2666 | switch (TLI.getOperationAction(ISD::STACKRESTORE, MVT::Other)) { |
| 2667 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2668 | case TargetLowering::Legal: break; |
| 2669 | case TargetLowering::Custom: |
| 2670 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2671 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2672 | break; |
| 2673 | case TargetLowering::Expand: |
Chris Lattner | 4f0d8e4 | 2006-01-13 17:48:44 +0000 | [diff] [blame] | 2674 | // Expand to CopyToReg if the target set |
| 2675 | // StackPointerRegisterToSaveRestore. |
| 2676 | if (unsigned SP = TLI.getStackPointerRegisterToSaveRestore()) { |
| 2677 | Result = DAG.getCopyToReg(Tmp1, SP, Tmp2); |
| 2678 | } else { |
| 2679 | Result = Tmp1; |
| 2680 | } |
Chris Lattner | 140d53c | 2006-01-13 02:50:02 +0000 | [diff] [blame] | 2681 | break; |
| 2682 | } |
| 2683 | break; |
| 2684 | |
Andrew Lenharth | 51b8d54 | 2005-11-11 16:47:30 +0000 | [diff] [blame] | 2685 | case ISD::READCYCLECOUNTER: |
| 2686 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2687 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Evan Cheng | f0b3ba6 | 2006-11-29 08:26:18 +0000 | [diff] [blame] | 2688 | switch (TLI.getOperationAction(ISD::READCYCLECOUNTER, |
| 2689 | Node->getValueType(0))) { |
| 2690 | default: assert(0 && "This action is not supported yet!"); |
Evan Cheng | 6a16c5a | 2006-11-29 19:13:47 +0000 | [diff] [blame] | 2691 | case TargetLowering::Legal: |
| 2692 | Tmp1 = Result.getValue(0); |
| 2693 | Tmp2 = Result.getValue(1); |
| 2694 | break; |
Evan Cheng | f0b3ba6 | 2006-11-29 08:26:18 +0000 | [diff] [blame] | 2695 | case TargetLowering::Custom: |
| 2696 | Result = TLI.LowerOperation(Result, DAG); |
Evan Cheng | 6a16c5a | 2006-11-29 19:13:47 +0000 | [diff] [blame] | 2697 | Tmp1 = LegalizeOp(Result.getValue(0)); |
| 2698 | Tmp2 = LegalizeOp(Result.getValue(1)); |
Evan Cheng | f0b3ba6 | 2006-11-29 08:26:18 +0000 | [diff] [blame] | 2699 | break; |
| 2700 | } |
Andrew Lenharth | 49c709f | 2005-12-02 04:56:24 +0000 | [diff] [blame] | 2701 | |
| 2702 | // Since rdcc produce two values, make sure to remember that we legalized |
| 2703 | // both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2704 | AddLegalizedOperand(SDValue(Node, 0), Tmp1); |
| 2705 | AddLegalizedOperand(SDValue(Node, 1), Tmp2); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2706 | return Result; |
Andrew Lenharth | f70e30b | 2005-11-20 21:32:07 +0000 | [diff] [blame] | 2707 | |
Chris Lattner | 2ee743f | 2005-01-14 22:08:15 +0000 | [diff] [blame] | 2708 | case ISD::SELECT: |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 2709 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 2710 | case Expand: assert(0 && "It's impossible to expand bools"); |
| 2711 | case Legal: |
| 2712 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the condition. |
| 2713 | break; |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 2714 | case Promote: { |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 2715 | Tmp1 = PromoteOp(Node->getOperand(0)); // Promote the condition. |
Chris Lattner | b6c8060 | 2006-11-28 01:03:30 +0000 | [diff] [blame] | 2716 | // Make sure the condition is either zero or one. |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 2717 | unsigned BitWidth = Tmp1.getValueSizeInBits(); |
Dan Gohman | ea859be | 2007-06-22 14:59:07 +0000 | [diff] [blame] | 2718 | if (!DAG.MaskedValueIsZero(Tmp1, |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 2719 | APInt::getHighBitsSet(BitWidth, BitWidth-1))) |
Chris Lattner | b6c8060 | 2006-11-28 01:03:30 +0000 | [diff] [blame] | 2720 | Tmp1 = DAG.getZeroExtendInReg(Tmp1, MVT::i1); |
Chris Lattner | 47e9223 | 2005-01-18 19:27:06 +0000 | [diff] [blame] | 2721 | break; |
| 2722 | } |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 2723 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2724 | Tmp2 = LegalizeOp(Node->getOperand(1)); // TrueVal |
Chris Lattner | 2ee743f | 2005-01-14 22:08:15 +0000 | [diff] [blame] | 2725 | Tmp3 = LegalizeOp(Node->getOperand(2)); // FalseVal |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2726 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2727 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2728 | |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2729 | switch (TLI.getOperationAction(ISD::SELECT, Tmp2.getValueType())) { |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2730 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2731 | case TargetLowering::Legal: break; |
| 2732 | case TargetLowering::Custom: { |
| 2733 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2734 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2735 | break; |
| 2736 | } |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 2737 | case TargetLowering::Expand: |
| 2738 | if (Tmp1.getOpcode() == ISD::SETCC) { |
| 2739 | Result = DAG.getSelectCC(Tmp1.getOperand(0), Tmp1.getOperand(1), |
| 2740 | Tmp2, Tmp3, |
| 2741 | cast<CondCodeSDNode>(Tmp1.getOperand(2))->get()); |
| 2742 | } else { |
| 2743 | Result = DAG.getSelectCC(Tmp1, |
| 2744 | DAG.getConstant(0, Tmp1.getValueType()), |
| 2745 | Tmp2, Tmp3, ISD::SETNE); |
| 2746 | } |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2747 | break; |
| 2748 | case TargetLowering::Promote: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2749 | MVT NVT = |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2750 | TLI.getTypeToPromoteTo(ISD::SELECT, Tmp2.getValueType()); |
| 2751 | unsigned ExtOp, TruncOp; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2752 | if (Tmp2.getValueType().isVector()) { |
Evan Cheng | 41f6cbb | 2006-04-12 16:33:18 +0000 | [diff] [blame] | 2753 | ExtOp = ISD::BIT_CONVERT; |
| 2754 | TruncOp = ISD::BIT_CONVERT; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2755 | } else if (Tmp2.getValueType().isInteger()) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2756 | ExtOp = ISD::ANY_EXTEND; |
| 2757 | TruncOp = ISD::TRUNCATE; |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2758 | } else { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2759 | ExtOp = ISD::FP_EXTEND; |
| 2760 | TruncOp = ISD::FP_ROUND; |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2761 | } |
| 2762 | // Promote each of the values to the new type. |
| 2763 | Tmp2 = DAG.getNode(ExtOp, NVT, Tmp2); |
| 2764 | Tmp3 = DAG.getNode(ExtOp, NVT, Tmp3); |
| 2765 | // Perform the larger operation, then round down. |
| 2766 | Result = DAG.getNode(ISD::SELECT, NVT, Tmp1, Tmp2,Tmp3); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 2767 | if (TruncOp != ISD::FP_ROUND) |
| 2768 | Result = DAG.getNode(TruncOp, Node->getValueType(0), Result); |
| 2769 | else |
| 2770 | Result = DAG.getNode(TruncOp, Node->getValueType(0), Result, |
| 2771 | DAG.getIntPtrConstant(0)); |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 2772 | break; |
| 2773 | } |
| 2774 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2775 | break; |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2776 | case ISD::SELECT_CC: { |
| 2777 | Tmp1 = Node->getOperand(0); // LHS |
| 2778 | Tmp2 = Node->getOperand(1); // RHS |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 2779 | Tmp3 = LegalizeOp(Node->getOperand(2)); // True |
| 2780 | Tmp4 = LegalizeOp(Node->getOperand(3)); // False |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2781 | SDValue CC = Node->getOperand(4); |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 2782 | |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2783 | LegalizeSetCCOperands(Tmp1, Tmp2, CC); |
| 2784 | |
| 2785 | // If we didn't get both a LHS and RHS back from LegalizeSetCCOperands, |
| 2786 | // the LHS is a legal SETCC itself. In this case, we need to compare |
| 2787 | // the result against zero to select between true and false values. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2788 | if (Tmp2.getNode() == 0) { |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2789 | Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); |
| 2790 | CC = DAG.getCondCode(ISD::SETNE); |
| 2791 | } |
| 2792 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, Tmp4, CC); |
| 2793 | |
| 2794 | // Everything is legal, see if we should expand this op or something. |
| 2795 | switch (TLI.getOperationAction(ISD::SELECT_CC, Tmp3.getValueType())) { |
| 2796 | default: assert(0 && "This action is not supported yet!"); |
| 2797 | case TargetLowering::Legal: break; |
| 2798 | case TargetLowering::Custom: |
| 2799 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2800 | if (Tmp1.getNode()) Result = Tmp1; |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 2801 | break; |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 2802 | } |
| 2803 | break; |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2804 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2805 | case ISD::SETCC: |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2806 | Tmp1 = Node->getOperand(0); |
| 2807 | Tmp2 = Node->getOperand(1); |
| 2808 | Tmp3 = Node->getOperand(2); |
| 2809 | LegalizeSetCCOperands(Tmp1, Tmp2, Tmp3); |
| 2810 | |
| 2811 | // If we had to Expand the SetCC operands into a SELECT node, then it may |
| 2812 | // not always be possible to return a true LHS & RHS. In this case, just |
| 2813 | // return the value we legalized, returned in the LHS |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2814 | if (Tmp2.getNode() == 0) { |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 2815 | Result = Tmp1; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2816 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2817 | } |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2818 | |
Chris Lattner | 73e142f | 2006-01-30 22:43:50 +0000 | [diff] [blame] | 2819 | switch (TLI.getOperationAction(ISD::SETCC, Tmp1.getValueType())) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2820 | default: assert(0 && "Cannot handle this action for SETCC yet!"); |
| 2821 | case TargetLowering::Custom: |
| 2822 | isCustom = true; |
| 2823 | // FALLTHROUGH. |
| 2824 | case TargetLowering::Legal: |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 2825 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2826 | if (isCustom) { |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 2827 | Tmp4 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2828 | if (Tmp4.getNode()) Result = Tmp4; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2829 | } |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2830 | break; |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2831 | case TargetLowering::Promote: { |
| 2832 | // First step, figure out the appropriate operation to use. |
| 2833 | // Allow SETCC to not be supported for all legal data types |
| 2834 | // Mostly this targets FP |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2835 | MVT NewInTy = Node->getOperand(0).getValueType(); |
| 2836 | MVT OldVT = NewInTy; OldVT = OldVT; |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2837 | |
| 2838 | // Scan for the appropriate larger type to use. |
| 2839 | while (1) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2840 | NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2841 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2842 | assert(NewInTy.isInteger() == OldVT.isInteger() && |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2843 | "Fell off of the edge of the integer world"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2844 | assert(NewInTy.isFloatingPoint() == OldVT.isFloatingPoint() && |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2845 | "Fell off of the edge of the floating point world"); |
| 2846 | |
| 2847 | // If the target supports SETCC of this type, use it. |
Chris Lattner | 1ccf26a | 2005-12-22 05:23:45 +0000 | [diff] [blame] | 2848 | if (TLI.isOperationLegal(ISD::SETCC, NewInTy)) |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2849 | break; |
| 2850 | } |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2851 | if (NewInTy.isInteger()) |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2852 | assert(0 && "Cannot promote Legal Integer SETCC yet"); |
| 2853 | else { |
| 2854 | Tmp1 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp1); |
| 2855 | Tmp2 = DAG.getNode(ISD::FP_EXTEND, NewInTy, Tmp2); |
| 2856 | } |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2857 | Tmp1 = LegalizeOp(Tmp1); |
| 2858 | Tmp2 = LegalizeOp(Tmp2); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 2859 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
Evan Cheng | 433f8ac | 2006-01-17 19:47:13 +0000 | [diff] [blame] | 2860 | Result = LegalizeOp(Result); |
Andrew Lenharth | 5e3efbc | 2005-08-29 20:46:51 +0000 | [diff] [blame] | 2861 | break; |
Andrew Lenharth | ae35575 | 2005-11-30 17:12:26 +0000 | [diff] [blame] | 2862 | } |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2863 | case TargetLowering::Expand: |
| 2864 | // Expand a setcc node into a select_cc of the same condition, lhs, and |
| 2865 | // rhs that selects between const 1 (true) and const 0 (false). |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2866 | MVT VT = Node->getValueType(0); |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2867 | Result = DAG.getNode(ISD::SELECT_CC, VT, Tmp1, Tmp2, |
| 2868 | DAG.getConstant(1, VT), DAG.getConstant(0, VT), |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 2869 | Tmp3); |
Nate Begeman | b942a3d | 2005-08-23 04:29:48 +0000 | [diff] [blame] | 2870 | break; |
| 2871 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2872 | break; |
Nate Begeman | b43e9c1 | 2008-05-12 19:40:03 +0000 | [diff] [blame] | 2873 | case ISD::VSETCC: { |
| 2874 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
| 2875 | Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2876 | SDValue CC = Node->getOperand(2); |
Nate Begeman | b43e9c1 | 2008-05-12 19:40:03 +0000 | [diff] [blame] | 2877 | |
| 2878 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, CC); |
| 2879 | |
| 2880 | // Everything is legal, see if we should expand this op or something. |
| 2881 | switch (TLI.getOperationAction(ISD::VSETCC, Tmp1.getValueType())) { |
| 2882 | default: assert(0 && "This action is not supported yet!"); |
| 2883 | case TargetLowering::Legal: break; |
| 2884 | case TargetLowering::Custom: |
| 2885 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2886 | if (Tmp1.getNode()) Result = Tmp1; |
Nate Begeman | b43e9c1 | 2008-05-12 19:40:03 +0000 | [diff] [blame] | 2887 | break; |
| 2888 | } |
| 2889 | break; |
| 2890 | } |
Chris Lattner | 52d08bd | 2005-05-09 20:23:03 +0000 | [diff] [blame] | 2891 | |
Chris Lattner | 5b359c6 | 2005-04-02 04:00:59 +0000 | [diff] [blame] | 2892 | case ISD::SHL_PARTS: |
| 2893 | case ISD::SRA_PARTS: |
| 2894 | case ISD::SRL_PARTS: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2895 | SmallVector<SDValue, 8> Ops; |
Chris Lattner | 84f6788 | 2005-01-20 18:52:28 +0000 | [diff] [blame] | 2896 | bool Changed = false; |
| 2897 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { |
| 2898 | Ops.push_back(LegalizeOp(Node->getOperand(i))); |
| 2899 | Changed |= Ops.back() != Node->getOperand(i); |
| 2900 | } |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2901 | if (Changed) |
Chris Lattner | f06f35e | 2006-08-08 01:09:31 +0000 | [diff] [blame] | 2902 | Result = DAG.UpdateNodeOperands(Result, &Ops[0], Ops.size()); |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 2903 | |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 2904 | switch (TLI.getOperationAction(Node->getOpcode(), |
| 2905 | Node->getValueType(0))) { |
| 2906 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2907 | case TargetLowering::Legal: break; |
| 2908 | case TargetLowering::Custom: |
| 2909 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2910 | if (Tmp1.getNode()) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2911 | SDValue Tmp2, RetVal(0, 0); |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 2912 | for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2913 | Tmp2 = LegalizeOp(Tmp1.getValue(i)); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2914 | AddLegalizedOperand(SDValue(Node, i), Tmp2); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2915 | if (i == Op.getResNo()) |
Evan Cheng | 12f2274 | 2006-01-19 04:54:52 +0000 | [diff] [blame] | 2916 | RetVal = Tmp2; |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 2917 | } |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2918 | assert(RetVal.getNode() && "Illegal result number"); |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 2919 | return RetVal; |
| 2920 | } |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 2921 | break; |
| 2922 | } |
| 2923 | |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 2924 | // Since these produce multiple values, make sure to remember that we |
| 2925 | // legalized all of them. |
| 2926 | for (unsigned i = 0, e = Node->getNumValues(); i != e; ++i) |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 2927 | AddLegalizedOperand(SDValue(Node, i), Result.getValue(i)); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 2928 | return Result.getValue(Op.getResNo()); |
Chris Lattner | 84f6788 | 2005-01-20 18:52:28 +0000 | [diff] [blame] | 2929 | } |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 2930 | |
| 2931 | // Binary operators |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2932 | case ISD::ADD: |
| 2933 | case ISD::SUB: |
| 2934 | case ISD::MUL: |
Nate Begeman | c7c1657 | 2005-04-11 03:01:51 +0000 | [diff] [blame] | 2935 | case ISD::MULHS: |
| 2936 | case ISD::MULHU: |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2937 | case ISD::UDIV: |
| 2938 | case ISD::SDIV: |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2939 | case ISD::AND: |
| 2940 | case ISD::OR: |
| 2941 | case ISD::XOR: |
Chris Lattner | 03c0cf8 | 2005-01-07 21:45:56 +0000 | [diff] [blame] | 2942 | case ISD::SHL: |
| 2943 | case ISD::SRL: |
| 2944 | case ISD::SRA: |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 2945 | case ISD::FADD: |
| 2946 | case ISD::FSUB: |
| 2947 | case ISD::FMUL: |
| 2948 | case ISD::FDIV: |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 2949 | case ISD::FPOW: |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 2950 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
Andrew Lenharth | f2eb139 | 2005-07-05 19:52:39 +0000 | [diff] [blame] | 2951 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
| 2952 | case Expand: assert(0 && "Not possible"); |
| 2953 | case Legal: |
| 2954 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. |
| 2955 | break; |
| 2956 | case Promote: |
| 2957 | Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. |
| 2958 | break; |
| 2959 | } |
Nate Begeman | 5bc1ea0 | 2008-07-29 15:49:41 +0000 | [diff] [blame] | 2960 | |
| 2961 | if ((Node->getOpcode() == ISD::SHL || |
| 2962 | Node->getOpcode() == ISD::SRL || |
| 2963 | Node->getOpcode() == ISD::SRA) && |
| 2964 | !Node->getValueType(0).isVector()) { |
| 2965 | if (TLI.getShiftAmountTy().bitsLT(Tmp2.getValueType())) |
| 2966 | Tmp2 = DAG.getNode(ISD::TRUNCATE, TLI.getShiftAmountTy(), Tmp2); |
| 2967 | else if (TLI.getShiftAmountTy().bitsGT(Tmp2.getValueType())) |
| 2968 | Tmp2 = DAG.getNode(ISD::ANY_EXTEND, TLI.getShiftAmountTy(), Tmp2); |
| 2969 | } |
| 2970 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 2971 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2972 | |
Andrew Lenharth | e8f65f1 | 2005-12-24 23:42:32 +0000 | [diff] [blame] | 2973 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Chris Lattner | bc70cf8 | 2006-04-02 03:57:31 +0000 | [diff] [blame] | 2974 | default: assert(0 && "BinOp legalize operation not supported"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 2975 | case TargetLowering::Legal: break; |
| 2976 | case TargetLowering::Custom: |
| 2977 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 2978 | if (Tmp1.getNode()) { |
Nate Begeman | 5bc1ea0 | 2008-07-29 15:49:41 +0000 | [diff] [blame] | 2979 | Result = Tmp1; |
| 2980 | break; |
Nate Begeman | 24dc346 | 2008-07-29 19:07:27 +0000 | [diff] [blame] | 2981 | } |
Nate Begeman | 5bc1ea0 | 2008-07-29 15:49:41 +0000 | [diff] [blame] | 2982 | // Fall through if the custom lower can't deal with the operation |
Chris Lattner | bc70cf8 | 2006-04-02 03:57:31 +0000 | [diff] [blame] | 2983 | case TargetLowering::Expand: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 2984 | MVT VT = Op.getValueType(); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 2985 | |
| 2986 | // See if multiply or divide can be lowered using two-result operations. |
| 2987 | SDVTList VTs = DAG.getVTList(VT, VT); |
| 2988 | if (Node->getOpcode() == ISD::MUL) { |
| 2989 | // We just need the low half of the multiply; try both the signed |
| 2990 | // and unsigned forms. If the target supports both SMUL_LOHI and |
| 2991 | // UMUL_LOHI, form a preference by checking which forms of plain |
| 2992 | // MULH it supports. |
| 2993 | bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, VT); |
| 2994 | bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, VT); |
| 2995 | bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, VT); |
| 2996 | bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, VT); |
| 2997 | unsigned OpToUse = 0; |
| 2998 | if (HasSMUL_LOHI && !HasMULHS) { |
| 2999 | OpToUse = ISD::SMUL_LOHI; |
| 3000 | } else if (HasUMUL_LOHI && !HasMULHU) { |
| 3001 | OpToUse = ISD::UMUL_LOHI; |
| 3002 | } else if (HasSMUL_LOHI) { |
| 3003 | OpToUse = ISD::SMUL_LOHI; |
| 3004 | } else if (HasUMUL_LOHI) { |
| 3005 | OpToUse = ISD::UMUL_LOHI; |
| 3006 | } |
| 3007 | if (OpToUse) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3008 | Result = SDValue(DAG.getNode(OpToUse, VTs, Tmp1, Tmp2).getNode(), 0); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3009 | break; |
| 3010 | } |
| 3011 | } |
| 3012 | if (Node->getOpcode() == ISD::MULHS && |
| 3013 | TLI.isOperationLegal(ISD::SMUL_LOHI, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3014 | Result = SDValue(DAG.getNode(ISD::SMUL_LOHI, VTs, Tmp1, Tmp2).getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3015 | break; |
| 3016 | } |
| 3017 | if (Node->getOpcode() == ISD::MULHU && |
| 3018 | TLI.isOperationLegal(ISD::UMUL_LOHI, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3019 | Result = SDValue(DAG.getNode(ISD::UMUL_LOHI, VTs, Tmp1, Tmp2).getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3020 | break; |
| 3021 | } |
| 3022 | if (Node->getOpcode() == ISD::SDIV && |
| 3023 | TLI.isOperationLegal(ISD::SDIVREM, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3024 | Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).getNode(), 0); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3025 | break; |
| 3026 | } |
| 3027 | if (Node->getOpcode() == ISD::UDIV && |
| 3028 | TLI.isOperationLegal(ISD::UDIVREM, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3029 | Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).getNode(), 0); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3030 | break; |
| 3031 | } |
| 3032 | |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3033 | // Check to see if we have a libcall for this operator. |
| 3034 | RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; |
| 3035 | bool isSigned = false; |
| 3036 | switch (Node->getOpcode()) { |
| 3037 | case ISD::UDIV: |
| 3038 | case ISD::SDIV: |
| 3039 | if (VT == MVT::i32) { |
| 3040 | LC = Node->getOpcode() == ISD::UDIV |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3041 | ? RTLIB::UDIV_I32 : RTLIB::SDIV_I32; |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3042 | isSigned = Node->getOpcode() == ISD::SDIV; |
| 3043 | } |
| 3044 | break; |
| 3045 | case ISD::FPOW: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3046 | LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, |
| 3047 | RTLIB::POW_PPCF128); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3048 | break; |
| 3049 | default: break; |
| 3050 | } |
| 3051 | if (LC != RTLIB::UNKNOWN_LIBCALL) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3052 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3053 | Result = ExpandLibCall(LC, Node, isSigned, Dummy); |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3054 | break; |
| 3055 | } |
| 3056 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3057 | assert(Node->getValueType(0).isVector() && |
Chris Lattner | bc70cf8 | 2006-04-02 03:57:31 +0000 | [diff] [blame] | 3058 | "Cannot expand this binary operator!"); |
| 3059 | // Expand the operation into a bunch of nasty scalar code. |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3060 | Result = LegalizeOp(UnrollVectorOp(Op)); |
Chris Lattner | bc70cf8 | 2006-04-02 03:57:31 +0000 | [diff] [blame] | 3061 | break; |
| 3062 | } |
Evan Cheng | cc98761 | 2006-04-12 21:20:24 +0000 | [diff] [blame] | 3063 | case TargetLowering::Promote: { |
| 3064 | switch (Node->getOpcode()) { |
| 3065 | default: assert(0 && "Do not know how to promote this BinOp!"); |
| 3066 | case ISD::AND: |
| 3067 | case ISD::OR: |
| 3068 | case ISD::XOR: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3069 | MVT OVT = Node->getValueType(0); |
| 3070 | MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); |
| 3071 | assert(OVT.isVector() && "Cannot promote this BinOp!"); |
Evan Cheng | cc98761 | 2006-04-12 21:20:24 +0000 | [diff] [blame] | 3072 | // Bit convert each of the values to the new type. |
| 3073 | Tmp1 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp1); |
| 3074 | Tmp2 = DAG.getNode(ISD::BIT_CONVERT, NVT, Tmp2); |
| 3075 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
| 3076 | // Bit convert the result back the original type. |
| 3077 | Result = DAG.getNode(ISD::BIT_CONVERT, OVT, Result); |
| 3078 | break; |
| 3079 | } |
| 3080 | } |
| 3081 | } |
Andrew Lenharth | e8f65f1 | 2005-12-24 23:42:32 +0000 | [diff] [blame] | 3082 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 3083 | break; |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 3084 | |
Dan Gohman | e14ea86 | 2007-10-05 14:17:22 +0000 | [diff] [blame] | 3085 | case ISD::SMUL_LOHI: |
| 3086 | case ISD::UMUL_LOHI: |
| 3087 | case ISD::SDIVREM: |
| 3088 | case ISD::UDIVREM: |
| 3089 | // These nodes will only be produced by target-specific lowering, so |
| 3090 | // they shouldn't be here if they aren't legal. |
Duncan Sands | a7c97a7 | 2007-10-16 09:07:20 +0000 | [diff] [blame] | 3091 | assert(TLI.isOperationLegal(Node->getOpcode(), Node->getValueType(0)) && |
Dan Gohman | e14ea86 | 2007-10-05 14:17:22 +0000 | [diff] [blame] | 3092 | "This must be legal!"); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3093 | |
| 3094 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
| 3095 | Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS |
| 3096 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Dan Gohman | e14ea86 | 2007-10-05 14:17:22 +0000 | [diff] [blame] | 3097 | break; |
| 3098 | |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 3099 | case ISD::FCOPYSIGN: // FCOPYSIGN does not require LHS/RHS to match type! |
| 3100 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
| 3101 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
| 3102 | case Expand: assert(0 && "Not possible"); |
| 3103 | case Legal: |
| 3104 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the RHS. |
| 3105 | break; |
| 3106 | case Promote: |
| 3107 | Tmp2 = PromoteOp(Node->getOperand(1)); // Promote the RHS. |
| 3108 | break; |
| 3109 | } |
| 3110 | |
| 3111 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 3112 | |
| 3113 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
| 3114 | default: assert(0 && "Operation not supported"); |
| 3115 | case TargetLowering::Custom: |
| 3116 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3117 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 8f4191d | 2006-03-13 06:08:38 +0000 | [diff] [blame] | 3118 | break; |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 3119 | case TargetLowering::Legal: break; |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 3120 | case TargetLowering::Expand: { |
Evan Cheng | 636c753 | 2007-01-05 23:33:44 +0000 | [diff] [blame] | 3121 | // If this target supports fabs/fneg natively and select is cheap, |
| 3122 | // do this efficiently. |
| 3123 | if (!TLI.isSelectExpensive() && |
| 3124 | TLI.getOperationAction(ISD::FABS, Tmp1.getValueType()) == |
| 3125 | TargetLowering::Legal && |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 3126 | TLI.getOperationAction(ISD::FNEG, Tmp1.getValueType()) == |
Evan Cheng | 636c753 | 2007-01-05 23:33:44 +0000 | [diff] [blame] | 3127 | TargetLowering::Legal) { |
Chris Lattner | 8f4191d | 2006-03-13 06:08:38 +0000 | [diff] [blame] | 3128 | // Get the sign bit of the RHS. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3129 | MVT IVT = |
Chris Lattner | 8f4191d | 2006-03-13 06:08:38 +0000 | [diff] [blame] | 3130 | Tmp2.getValueType() == MVT::f32 ? MVT::i32 : MVT::i64; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3131 | SDValue SignBit = DAG.getNode(ISD::BIT_CONVERT, IVT, Tmp2); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 3132 | SignBit = DAG.getSetCC(TLI.getSetCCResultType(SignBit), |
Chris Lattner | 8f4191d | 2006-03-13 06:08:38 +0000 | [diff] [blame] | 3133 | SignBit, DAG.getConstant(0, IVT), ISD::SETLT); |
| 3134 | // Get the absolute value of the result. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3135 | SDValue AbsVal = DAG.getNode(ISD::FABS, Tmp1.getValueType(), Tmp1); |
Chris Lattner | 8f4191d | 2006-03-13 06:08:38 +0000 | [diff] [blame] | 3136 | // Select between the nabs and abs value based on the sign bit of |
| 3137 | // the input. |
| 3138 | Result = DAG.getNode(ISD::SELECT, AbsVal.getValueType(), SignBit, |
| 3139 | DAG.getNode(ISD::FNEG, AbsVal.getValueType(), |
| 3140 | AbsVal), |
| 3141 | AbsVal); |
| 3142 | Result = LegalizeOp(Result); |
| 3143 | break; |
| 3144 | } |
| 3145 | |
| 3146 | // Otherwise, do bitwise ops! |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3147 | MVT NVT = |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 3148 | Node->getValueType(0) == MVT::f32 ? MVT::i32 : MVT::i64; |
| 3149 | Result = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); |
| 3150 | Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), Result); |
| 3151 | Result = LegalizeOp(Result); |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 3152 | break; |
| 3153 | } |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 3154 | } |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 3155 | break; |
| 3156 | |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 3157 | case ISD::ADDC: |
| 3158 | case ISD::SUBC: |
| 3159 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3160 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 3161 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
| 3162 | // Since this produces two values, make sure to remember that we legalized |
| 3163 | // both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3164 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 3165 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 3166 | return Result; |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 3167 | |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 3168 | case ISD::ADDE: |
| 3169 | case ISD::SUBE: |
| 3170 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3171 | Tmp2 = LegalizeOp(Node->getOperand(1)); |
| 3172 | Tmp3 = LegalizeOp(Node->getOperand(2)); |
| 3173 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3); |
| 3174 | // Since this produces two values, make sure to remember that we legalized |
| 3175 | // both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3176 | AddLegalizedOperand(SDValue(Node, 0), Result.getValue(0)); |
| 3177 | AddLegalizedOperand(SDValue(Node, 1), Result.getValue(1)); |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 3178 | return Result; |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 3179 | |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3180 | case ISD::BUILD_PAIR: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3181 | MVT PairTy = Node->getValueType(0); |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3182 | // TODO: handle the case where the Lo and Hi operands are not of legal type |
| 3183 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Lo |
| 3184 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Hi |
| 3185 | switch (TLI.getOperationAction(ISD::BUILD_PAIR, PairTy)) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3186 | case TargetLowering::Promote: |
| 3187 | case TargetLowering::Custom: |
| 3188 | assert(0 && "Cannot promote/custom this yet!"); |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3189 | case TargetLowering::Legal: |
| 3190 | if (Tmp1 != Node->getOperand(0) || Tmp2 != Node->getOperand(1)) |
| 3191 | Result = DAG.getNode(ISD::BUILD_PAIR, PairTy, Tmp1, Tmp2); |
| 3192 | break; |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3193 | case TargetLowering::Expand: |
| 3194 | Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, PairTy, Tmp1); |
| 3195 | Tmp2 = DAG.getNode(ISD::ANY_EXTEND, PairTy, Tmp2); |
| 3196 | Tmp2 = DAG.getNode(ISD::SHL, PairTy, Tmp2, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3197 | DAG.getConstant(PairTy.getSizeInBits()/2, |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3198 | TLI.getShiftAmountTy())); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3199 | Result = DAG.getNode(ISD::OR, PairTy, Tmp1, Tmp2); |
Nate Begeman | 419f8b6 | 2005-10-18 00:27:41 +0000 | [diff] [blame] | 3200 | break; |
| 3201 | } |
| 3202 | break; |
| 3203 | } |
| 3204 | |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3205 | case ISD::UREM: |
| 3206 | case ISD::SREM: |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 3207 | case ISD::FREM: |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3208 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
| 3209 | Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3210 | |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3211 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3212 | case TargetLowering::Promote: assert(0 && "Cannot promote this yet!"); |
| 3213 | case TargetLowering::Custom: |
| 3214 | isCustom = true; |
| 3215 | // FALLTHROUGH |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3216 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3217 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3218 | if (isCustom) { |
| 3219 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3220 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3221 | } |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3222 | break; |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3223 | case TargetLowering::Expand: { |
Evan Cheng | 6b5578f | 2006-09-18 23:28:33 +0000 | [diff] [blame] | 3224 | unsigned DivOpc= (Node->getOpcode() == ISD::UREM) ? ISD::UDIV : ISD::SDIV; |
Reid Spencer | 4785781 | 2006-12-31 05:55:36 +0000 | [diff] [blame] | 3225 | bool isSigned = DivOpc == ISD::SDIV; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3226 | MVT VT = Node->getValueType(0); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3227 | |
| 3228 | // See if remainder can be lowered using two-result operations. |
| 3229 | SDVTList VTs = DAG.getVTList(VT, VT); |
| 3230 | if (Node->getOpcode() == ISD::SREM && |
| 3231 | TLI.isOperationLegal(ISD::SDIVREM, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3232 | Result = SDValue(DAG.getNode(ISD::SDIVREM, VTs, Tmp1, Tmp2).getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3233 | break; |
| 3234 | } |
| 3235 | if (Node->getOpcode() == ISD::UREM && |
| 3236 | TLI.isOperationLegal(ISD::UDIVREM, VT)) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3237 | Result = SDValue(DAG.getNode(ISD::UDIVREM, VTs, Tmp1, Tmp2).getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3238 | break; |
| 3239 | } |
| 3240 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3241 | if (VT.isInteger()) { |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3242 | if (TLI.getOperationAction(DivOpc, VT) == |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3243 | TargetLowering::Legal) { |
| 3244 | // X % Y -> X-X/Y*Y |
Evan Cheng | 6b5578f | 2006-09-18 23:28:33 +0000 | [diff] [blame] | 3245 | Result = DAG.getNode(DivOpc, VT, Tmp1, Tmp2); |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3246 | Result = DAG.getNode(ISD::MUL, VT, Result, Tmp2); |
| 3247 | Result = DAG.getNode(ISD::SUB, VT, Tmp1, Result); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3248 | } else if (VT.isVector()) { |
Dan Gohman | 8017631 | 2007-11-05 23:35:22 +0000 | [diff] [blame] | 3249 | Result = LegalizeOp(UnrollVectorOp(Op)); |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3250 | } else { |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3251 | assert(VT == MVT::i32 && |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3252 | "Cannot expand this binary operator!"); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3253 | RTLIB::Libcall LC = Node->getOpcode() == ISD::UREM |
| 3254 | ? RTLIB::UREM_I32 : RTLIB::SREM_I32; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3255 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3256 | Result = ExpandLibCall(LC, Node, isSigned, Dummy); |
Evan Cheng | 52cc1ea | 2006-09-18 21:49:04 +0000 | [diff] [blame] | 3257 | } |
Dan Gohman | 0d97426 | 2007-11-06 22:11:54 +0000 | [diff] [blame] | 3258 | } else { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3259 | assert(VT.isFloatingPoint() && |
Dan Gohman | 0d97426 | 2007-11-06 22:11:54 +0000 | [diff] [blame] | 3260 | "remainder op must have integer or floating-point type"); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3261 | if (VT.isVector()) { |
Dan Gohman | 8017631 | 2007-11-05 23:35:22 +0000 | [diff] [blame] | 3262 | Result = LegalizeOp(UnrollVectorOp(Op)); |
| 3263 | } else { |
| 3264 | // Floating point mod -> fmod libcall. |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3265 | RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::REM_F32, RTLIB::REM_F64, |
| 3266 | RTLIB::REM_F80, RTLIB::REM_PPCF128); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3267 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3268 | Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); |
Dan Gohman | 8017631 | 2007-11-05 23:35:22 +0000 | [diff] [blame] | 3269 | } |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3270 | } |
| 3271 | break; |
| 3272 | } |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 3273 | } |
Nate Begeman | c105e19 | 2005-04-06 00:23:54 +0000 | [diff] [blame] | 3274 | break; |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3275 | case ISD::VAARG: { |
| 3276 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 3277 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. |
| 3278 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3279 | MVT VT = Node->getValueType(0); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3280 | switch (TLI.getOperationAction(Node->getOpcode(), MVT::Other)) { |
| 3281 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3282 | case TargetLowering::Custom: |
| 3283 | isCustom = true; |
| 3284 | // FALLTHROUGH |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3285 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3286 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
| 3287 | Result = Result.getValue(0); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3288 | Tmp1 = Result.getValue(1); |
| 3289 | |
| 3290 | if (isCustom) { |
| 3291 | Tmp2 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3292 | if (Tmp2.getNode()) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3293 | Result = LegalizeOp(Tmp2); |
| 3294 | Tmp1 = LegalizeOp(Tmp2.getValue(1)); |
| 3295 | } |
| 3296 | } |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3297 | break; |
| 3298 | case TargetLowering::Expand: { |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 3299 | const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3300 | SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3301 | // Increment the pointer, VAList, to the next vaarg |
| 3302 | Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3303 | DAG.getConstant(VT.getSizeInBits()/8, |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3304 | TLI.getPointerTy())); |
| 3305 | // Store the incremented VAList to the legalized pointer |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 3306 | Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3307 | // Load the actual argument out of the pointer VAList |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 3308 | Result = DAG.getLoad(VT, Tmp3, VAList, NULL, 0); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3309 | Tmp1 = LegalizeOp(Result.getValue(1)); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3310 | Result = LegalizeOp(Result); |
| 3311 | break; |
| 3312 | } |
| 3313 | } |
| 3314 | // Since VAARG produces two values, make sure to remember that we |
| 3315 | // legalized both of them. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3316 | AddLegalizedOperand(SDValue(Node, 0), Result); |
| 3317 | AddLegalizedOperand(SDValue(Node, 1), Tmp1); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 3318 | return Op.getResNo() ? Tmp1 : Result; |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3319 | } |
| 3320 | |
| 3321 | case ISD::VACOPY: |
| 3322 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 3323 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the dest pointer. |
| 3324 | Tmp3 = LegalizeOp(Node->getOperand(2)); // Legalize the source pointer. |
| 3325 | |
| 3326 | switch (TLI.getOperationAction(ISD::VACOPY, MVT::Other)) { |
| 3327 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3328 | case TargetLowering::Custom: |
| 3329 | isCustom = true; |
| 3330 | // FALLTHROUGH |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3331 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3332 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Tmp3, |
| 3333 | Node->getOperand(3), Node->getOperand(4)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3334 | if (isCustom) { |
| 3335 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3336 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3337 | } |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3338 | break; |
| 3339 | case TargetLowering::Expand: |
| 3340 | // This defaults to loading a pointer from the input and storing it to the |
| 3341 | // output, returning the chain. |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 3342 | const Value *VD = cast<SrcValueSDNode>(Node->getOperand(3))->getValue(); |
| 3343 | const Value *VS = cast<SrcValueSDNode>(Node->getOperand(4))->getValue(); |
Dan Gohman | 499c1bd | 2008-04-17 02:09:26 +0000 | [diff] [blame] | 3344 | Tmp4 = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp3, VS, 0); |
| 3345 | Result = DAG.getStore(Tmp4.getValue(1), Tmp4, Tmp2, VD, 0); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3346 | break; |
| 3347 | } |
| 3348 | break; |
| 3349 | |
| 3350 | case ISD::VAEND: |
| 3351 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 3352 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. |
| 3353 | |
| 3354 | switch (TLI.getOperationAction(ISD::VAEND, MVT::Other)) { |
| 3355 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3356 | case TargetLowering::Custom: |
| 3357 | isCustom = true; |
| 3358 | // FALLTHROUGH |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3359 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3360 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3361 | if (isCustom) { |
| 3362 | Tmp1 = TLI.LowerOperation(Tmp1, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3363 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3364 | } |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3365 | break; |
| 3366 | case TargetLowering::Expand: |
| 3367 | Result = Tmp1; // Default to a no-op, return the chain |
| 3368 | break; |
| 3369 | } |
| 3370 | break; |
| 3371 | |
| 3372 | case ISD::VASTART: |
| 3373 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Legalize the chain. |
| 3374 | Tmp2 = LegalizeOp(Node->getOperand(1)); // Legalize the pointer. |
| 3375 | |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3376 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2, Node->getOperand(2)); |
| 3377 | |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3378 | switch (TLI.getOperationAction(ISD::VASTART, MVT::Other)) { |
| 3379 | default: assert(0 && "This action is not supported yet!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3380 | case TargetLowering::Legal: break; |
| 3381 | case TargetLowering::Custom: |
| 3382 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3383 | if (Tmp1.getNode()) Result = Tmp1; |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 3384 | break; |
| 3385 | } |
| 3386 | break; |
| 3387 | |
Nate Begeman | 35ef913 | 2006-01-11 21:21:00 +0000 | [diff] [blame] | 3388 | case ISD::ROTL: |
| 3389 | case ISD::ROTR: |
| 3390 | Tmp1 = LegalizeOp(Node->getOperand(0)); // LHS |
| 3391 | Tmp2 = LegalizeOp(Node->getOperand(1)); // RHS |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3392 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Tmp2); |
Scott Michel | c9dc114 | 2007-04-02 21:36:32 +0000 | [diff] [blame] | 3393 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
| 3394 | default: |
| 3395 | assert(0 && "ROTL/ROTR legalize operation not supported"); |
| 3396 | break; |
| 3397 | case TargetLowering::Legal: |
| 3398 | break; |
| 3399 | case TargetLowering::Custom: |
| 3400 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3401 | if (Tmp1.getNode()) Result = Tmp1; |
Scott Michel | c9dc114 | 2007-04-02 21:36:32 +0000 | [diff] [blame] | 3402 | break; |
| 3403 | case TargetLowering::Promote: |
| 3404 | assert(0 && "Do not know how to promote ROTL/ROTR"); |
| 3405 | break; |
| 3406 | case TargetLowering::Expand: |
| 3407 | assert(0 && "Do not know how to expand ROTL/ROTR"); |
| 3408 | break; |
| 3409 | } |
Nate Begeman | 35ef913 | 2006-01-11 21:21:00 +0000 | [diff] [blame] | 3410 | break; |
| 3411 | |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 3412 | case ISD::BSWAP: |
| 3413 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Op |
| 3414 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3415 | case TargetLowering::Custom: |
| 3416 | assert(0 && "Cannot custom legalize this yet!"); |
| 3417 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3418 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3419 | break; |
| 3420 | case TargetLowering::Promote: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3421 | MVT OVT = Tmp1.getValueType(); |
| 3422 | MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); |
| 3423 | unsigned DiffBits = NVT.getSizeInBits() - OVT.getSizeInBits(); |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 3424 | |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3425 | Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); |
| 3426 | Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); |
| 3427 | Result = DAG.getNode(ISD::SRL, NVT, Tmp1, |
| 3428 | DAG.getConstant(DiffBits, TLI.getShiftAmountTy())); |
| 3429 | break; |
| 3430 | } |
| 3431 | case TargetLowering::Expand: |
| 3432 | Result = ExpandBSWAP(Tmp1); |
| 3433 | break; |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 3434 | } |
| 3435 | break; |
| 3436 | |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3437 | case ISD::CTPOP: |
| 3438 | case ISD::CTTZ: |
| 3439 | case ISD::CTLZ: |
| 3440 | Tmp1 = LegalizeOp(Node->getOperand(0)); // Op |
| 3441 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Scott Michel | 910b66d | 2007-07-30 21:00:31 +0000 | [diff] [blame] | 3442 | case TargetLowering::Custom: |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3443 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3444 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Scott Michel | 910b66d | 2007-07-30 21:00:31 +0000 | [diff] [blame] | 3445 | if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == |
Scott Michel | 335f4f7 | 2007-08-02 02:22:46 +0000 | [diff] [blame] | 3446 | TargetLowering::Custom) { |
| 3447 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3448 | if (Tmp1.getNode()) { |
Scott Michel | 335f4f7 | 2007-08-02 02:22:46 +0000 | [diff] [blame] | 3449 | Result = Tmp1; |
| 3450 | } |
Scott Michel | 910b66d | 2007-07-30 21:00:31 +0000 | [diff] [blame] | 3451 | } |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3452 | break; |
| 3453 | case TargetLowering::Promote: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3454 | MVT OVT = Tmp1.getValueType(); |
| 3455 | MVT NVT = TLI.getTypeToPromoteTo(Node->getOpcode(), OVT); |
Chris Lattner | edb1add | 2005-05-11 04:51:16 +0000 | [diff] [blame] | 3456 | |
| 3457 | // Zero extend the argument. |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3458 | Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); |
| 3459 | // Perform the larger operation, then subtract if needed. |
| 3460 | Tmp1 = DAG.getNode(Node->getOpcode(), Node->getValueType(0), Tmp1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3461 | switch (Node->getOpcode()) { |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3462 | case ISD::CTPOP: |
| 3463 | Result = Tmp1; |
| 3464 | break; |
| 3465 | case ISD::CTTZ: |
| 3466 | //if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 3467 | Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3468 | DAG.getConstant(NVT.getSizeInBits(), NVT), |
Chris Lattner | 7cf7e3f | 2005-08-09 20:20:18 +0000 | [diff] [blame] | 3469 | ISD::SETEQ); |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 3470 | Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3471 | DAG.getConstant(OVT.getSizeInBits(), NVT), Tmp1); |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3472 | break; |
| 3473 | case ISD::CTLZ: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3474 | // Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 3475 | Result = DAG.getNode(ISD::SUB, NVT, Tmp1, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3476 | DAG.getConstant(NVT.getSizeInBits() - |
| 3477 | OVT.getSizeInBits(), NVT)); |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3478 | break; |
| 3479 | } |
| 3480 | break; |
| 3481 | } |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3482 | case TargetLowering::Expand: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3483 | Result = ExpandBitCount(Node->getOpcode(), Tmp1); |
Andrew Lenharth | 691ef2b | 2005-05-03 17:19:30 +0000 | [diff] [blame] | 3484 | break; |
| 3485 | } |
| 3486 | break; |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 3487 | |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3488 | // Unary operators |
| 3489 | case ISD::FABS: |
| 3490 | case ISD::FNEG: |
Chris Lattner | da6ba87 | 2005-04-28 21:44:33 +0000 | [diff] [blame] | 3491 | case ISD::FSQRT: |
| 3492 | case ISD::FSIN: |
| 3493 | case ISD::FCOS: |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 3494 | case ISD::FLOG: |
| 3495 | case ISD::FLOG2: |
| 3496 | case ISD::FLOG10: |
| 3497 | case ISD::FEXP: |
| 3498 | case ISD::FEXP2: |
Dan Gohman | 509e84f | 2008-08-21 17:55:02 +0000 | [diff] [blame] | 3499 | case ISD::FTRUNC: |
| 3500 | case ISD::FFLOOR: |
| 3501 | case ISD::FCEIL: |
| 3502 | case ISD::FRINT: |
| 3503 | case ISD::FNEARBYINT: |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3504 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3505 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3506 | case TargetLowering::Promote: |
| 3507 | case TargetLowering::Custom: |
Evan Cheng | 59ad781 | 2006-01-31 18:14:25 +0000 | [diff] [blame] | 3508 | isCustom = true; |
| 3509 | // FALLTHROUGH |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3510 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3511 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Evan Cheng | 59ad781 | 2006-01-31 18:14:25 +0000 | [diff] [blame] | 3512 | if (isCustom) { |
| 3513 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3514 | if (Tmp1.getNode()) Result = Tmp1; |
Evan Cheng | 59ad781 | 2006-01-31 18:14:25 +0000 | [diff] [blame] | 3515 | } |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3516 | break; |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3517 | case TargetLowering::Expand: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3518 | switch (Node->getOpcode()) { |
| 3519 | default: assert(0 && "Unreachable!"); |
| 3520 | case ISD::FNEG: |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3521 | // Expand Y = FNEG(X) -> Y = SUB -0.0, X |
| 3522 | Tmp2 = DAG.getConstantFP(-0.0, Node->getValueType(0)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3523 | Result = DAG.getNode(ISD::FSUB, Node->getValueType(0), Tmp2, Tmp1); |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3524 | break; |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3525 | case ISD::FABS: { |
Chris Lattner | 4af6e0d | 2005-04-02 05:26:37 +0000 | [diff] [blame] | 3526 | // Expand Y = FABS(X) -> Y = (X >u 0.0) ? X : fneg(X). |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3527 | MVT VT = Node->getValueType(0); |
Chris Lattner | 4af6e0d | 2005-04-02 05:26:37 +0000 | [diff] [blame] | 3528 | Tmp2 = DAG.getConstantFP(0.0, VT); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 3529 | Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 3530 | ISD::SETUGT); |
Chris Lattner | 4af6e0d | 2005-04-02 05:26:37 +0000 | [diff] [blame] | 3531 | Tmp3 = DAG.getNode(ISD::FNEG, VT, Tmp1); |
| 3532 | Result = DAG.getNode(ISD::SELECT, VT, Tmp2, Tmp1, Tmp3); |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3533 | break; |
| 3534 | } |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 3535 | case ISD::FSQRT: |
| 3536 | case ISD::FSIN: |
| 3537 | case ISD::FCOS: |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 3538 | case ISD::FLOG: |
| 3539 | case ISD::FLOG2: |
| 3540 | case ISD::FLOG10: |
| 3541 | case ISD::FEXP: |
| 3542 | case ISD::FEXP2: |
Dan Gohman | 2bb1e3e | 2008-08-21 18:38:14 +0000 | [diff] [blame] | 3543 | case ISD::FTRUNC: |
| 3544 | case ISD::FFLOOR: |
| 3545 | case ISD::FCEIL: |
| 3546 | case ISD::FRINT: |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 3547 | case ISD::FNEARBYINT: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3548 | MVT VT = Node->getValueType(0); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3549 | |
| 3550 | // Expand unsupported unary vector operators by unrolling them. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3551 | if (VT.isVector()) { |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3552 | Result = LegalizeOp(UnrollVectorOp(Op)); |
| 3553 | break; |
| 3554 | } |
| 3555 | |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3556 | RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3557 | switch(Node->getOpcode()) { |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3558 | case ISD::FSQRT: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3559 | LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, |
| 3560 | RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3561 | break; |
| 3562 | case ISD::FSIN: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3563 | LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, |
| 3564 | RTLIB::SIN_F80, RTLIB::SIN_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3565 | break; |
| 3566 | case ISD::FCOS: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3567 | LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, |
| 3568 | RTLIB::COS_F80, RTLIB::COS_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 3569 | break; |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 3570 | case ISD::FLOG: |
| 3571 | LC = GetFPLibCall(VT, RTLIB::LOG_F32, RTLIB::LOG_F64, |
| 3572 | RTLIB::LOG_F80, RTLIB::LOG_PPCF128); |
| 3573 | break; |
| 3574 | case ISD::FLOG2: |
| 3575 | LC = GetFPLibCall(VT, RTLIB::LOG2_F32, RTLIB::LOG2_F64, |
| 3576 | RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128); |
| 3577 | break; |
| 3578 | case ISD::FLOG10: |
| 3579 | LC = GetFPLibCall(VT, RTLIB::LOG10_F32, RTLIB::LOG10_F64, |
| 3580 | RTLIB::LOG10_F80, RTLIB::LOG10_PPCF128); |
| 3581 | break; |
| 3582 | case ISD::FEXP: |
| 3583 | LC = GetFPLibCall(VT, RTLIB::EXP_F32, RTLIB::EXP_F64, |
| 3584 | RTLIB::EXP_F80, RTLIB::EXP_PPCF128); |
| 3585 | break; |
| 3586 | case ISD::FEXP2: |
| 3587 | LC = GetFPLibCall(VT, RTLIB::EXP2_F32, RTLIB::EXP2_F64, |
| 3588 | RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128); |
| 3589 | break; |
Dan Gohman | 2bb1e3e | 2008-08-21 18:38:14 +0000 | [diff] [blame] | 3590 | case ISD::FTRUNC: |
| 3591 | LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, |
| 3592 | RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); |
| 3593 | break; |
| 3594 | case ISD::FFLOOR: |
| 3595 | LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, |
| 3596 | RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); |
| 3597 | break; |
| 3598 | case ISD::FCEIL: |
| 3599 | LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, |
| 3600 | RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); |
| 3601 | break; |
| 3602 | case ISD::FRINT: |
| 3603 | LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, |
| 3604 | RTLIB::RINT_F80, RTLIB::RINT_PPCF128); |
| 3605 | break; |
| 3606 | case ISD::FNEARBYINT: |
| 3607 | LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, |
| 3608 | RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); |
| 3609 | break; |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 3610 | break; |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3611 | default: assert(0 && "Unreachable!"); |
| 3612 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3613 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3614 | Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); |
Chris Lattner | f76e7dc | 2005-04-30 04:43:14 +0000 | [diff] [blame] | 3615 | break; |
| 3616 | } |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3617 | } |
| 3618 | break; |
| 3619 | } |
| 3620 | break; |
Chris Lattner | 6ddf8ed | 2006-09-09 06:03:30 +0000 | [diff] [blame] | 3621 | case ISD::FPOWI: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3622 | MVT VT = Node->getValueType(0); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3623 | |
| 3624 | // Expand unsupported unary vector operators by unrolling them. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3625 | if (VT.isVector()) { |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 3626 | Result = LegalizeOp(UnrollVectorOp(Op)); |
| 3627 | break; |
| 3628 | } |
| 3629 | |
| 3630 | // We always lower FPOWI into a libcall. No target support for it yet. |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 3631 | RTLIB::Libcall LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, |
| 3632 | RTLIB::POWI_F80, RTLIB::POWI_PPCF128); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3633 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3634 | Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); |
Chris Lattner | 6ddf8ed | 2006-09-09 06:03:30 +0000 | [diff] [blame] | 3635 | break; |
| 3636 | } |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 3637 | case ISD::BIT_CONVERT: |
Chris Lattner | 67993f7 | 2006-01-23 07:30:46 +0000 | [diff] [blame] | 3638 | if (!isTypeLegal(Node->getOperand(0).getValueType())) { |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 3639 | Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), |
| 3640 | Node->getValueType(0)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3641 | } else if (Op.getOperand(0).getValueType().isVector()) { |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 3642 | // The input has to be a vector type, we have to either scalarize it, pack |
| 3643 | // it, or convert it based on whether the input vector type is legal. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3644 | SDNode *InVal = Node->getOperand(0).getNode(); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 3645 | int InIx = Node->getOperand(0).getResNo(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3646 | unsigned NumElems = InVal->getValueType(InIx).getVectorNumElements(); |
| 3647 | MVT EVT = InVal->getValueType(InIx).getVectorElementType(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 3648 | |
| 3649 | // Figure out if there is a simple type corresponding to this Vector |
| 3650 | // type. If so, convert to the vector type. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3651 | MVT TVT = MVT::getVectorVT(EVT, NumElems); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 3652 | if (TLI.isTypeLegal(TVT)) { |
Dan Gohman | 07a9676 | 2007-07-16 14:29:03 +0000 | [diff] [blame] | 3653 | // Turn this into a bit convert of the vector input. |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 3654 | Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), |
| 3655 | LegalizeOp(Node->getOperand(0))); |
| 3656 | break; |
| 3657 | } else if (NumElems == 1) { |
| 3658 | // Turn this into a bit convert of the scalar input. |
| 3659 | Result = DAG.getNode(ISD::BIT_CONVERT, Node->getValueType(0), |
| 3660 | ScalarizeVectorOp(Node->getOperand(0))); |
| 3661 | break; |
| 3662 | } else { |
| 3663 | // FIXME: UNIMP! Store then reload |
| 3664 | assert(0 && "Cast from unsupported vector type not implemented yet!"); |
| 3665 | } |
Chris Lattner | 67993f7 | 2006-01-23 07:30:46 +0000 | [diff] [blame] | 3666 | } else { |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 3667 | switch (TLI.getOperationAction(ISD::BIT_CONVERT, |
| 3668 | Node->getOperand(0).getValueType())) { |
| 3669 | default: assert(0 && "Unknown operation action!"); |
| 3670 | case TargetLowering::Expand: |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 3671 | Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), |
| 3672 | Node->getValueType(0)); |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 3673 | break; |
| 3674 | case TargetLowering::Legal: |
| 3675 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3676 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 3677 | break; |
| 3678 | } |
| 3679 | } |
| 3680 | break; |
Chris Lattner | d1f04d4 | 2006-03-24 02:26:29 +0000 | [diff] [blame] | 3681 | |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 3682 | // Conversion operators. The source and destination have different types. |
Chris Lattner | ae0aacb | 2005-01-08 08:08:56 +0000 | [diff] [blame] | 3683 | case ISD::SINT_TO_FP: |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3684 | case ISD::UINT_TO_FP: { |
| 3685 | bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 3686 | Result = LegalizeINT_TO_FP(Result, isSigned, |
| 3687 | Node->getValueType(0), Node->getOperand(0)); |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3688 | break; |
| 3689 | } |
| 3690 | case ISD::TRUNCATE: |
| 3691 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 3692 | case Legal: |
| 3693 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3694 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3695 | break; |
| 3696 | case Expand: |
| 3697 | ExpandOp(Node->getOperand(0), Tmp1, Tmp2); |
| 3698 | |
| 3699 | // Since the result is legal, we should just be able to truncate the low |
| 3700 | // part of the source. |
| 3701 | Result = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), Tmp1); |
| 3702 | break; |
| 3703 | case Promote: |
| 3704 | Result = PromoteOp(Node->getOperand(0)); |
| 3705 | Result = DAG.getNode(ISD::TRUNCATE, Op.getValueType(), Result); |
| 3706 | break; |
| 3707 | } |
| 3708 | break; |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 3709 | |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3710 | case ISD::FP_TO_SINT: |
| 3711 | case ISD::FP_TO_UINT: |
| 3712 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 3713 | case Legal: |
Chris Lattner | f1fa74e | 2005-07-30 00:04:12 +0000 | [diff] [blame] | 3714 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3715 | |
Chris Lattner | 1618beb | 2005-07-29 00:11:56 +0000 | [diff] [blame] | 3716 | switch (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0))){ |
| 3717 | default: assert(0 && "Unknown operation action!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3718 | case TargetLowering::Custom: |
| 3719 | isCustom = true; |
| 3720 | // FALLTHROUGH |
| 3721 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3722 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3723 | if (isCustom) { |
| 3724 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3725 | if (Tmp1.getNode()) Result = Tmp1; |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3726 | } |
| 3727 | break; |
| 3728 | case TargetLowering::Promote: |
| 3729 | Result = PromoteLegalFP_TO_INT(Tmp1, Node->getValueType(0), |
| 3730 | Node->getOpcode() == ISD::FP_TO_SINT); |
| 3731 | break; |
Chris Lattner | 1618beb | 2005-07-29 00:11:56 +0000 | [diff] [blame] | 3732 | case TargetLowering::Expand: |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 3733 | if (Node->getOpcode() == ISD::FP_TO_UINT) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3734 | SDValue True, False; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3735 | MVT VT = Node->getOperand(0).getValueType(); |
| 3736 | MVT NVT = Node->getValueType(0); |
Dale Johannesen | 73328d1 | 2007-09-19 23:55:34 +0000 | [diff] [blame] | 3737 | const uint64_t zero[] = {0, 0}; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3738 | APFloat apf = APFloat(APInt(VT.getSizeInBits(), 2, zero)); |
| 3739 | APInt x = APInt::getSignBit(NVT.getSizeInBits()); |
Dan Gohman | c7773bf | 2008-02-29 01:44:25 +0000 | [diff] [blame] | 3740 | (void)apf.convertFromAPInt(x, false, APFloat::rmNearestTiesToEven); |
Dale Johannesen | 73328d1 | 2007-09-19 23:55:34 +0000 | [diff] [blame] | 3741 | Tmp2 = DAG.getConstantFP(apf, VT); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 3742 | Tmp3 = DAG.getSetCC(TLI.getSetCCResultType(Node->getOperand(0)), |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 3743 | Node->getOperand(0), Tmp2, ISD::SETLT); |
| 3744 | True = DAG.getNode(ISD::FP_TO_SINT, NVT, Node->getOperand(0)); |
| 3745 | False = DAG.getNode(ISD::FP_TO_SINT, NVT, |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 3746 | DAG.getNode(ISD::FSUB, VT, Node->getOperand(0), |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 3747 | Tmp2)); |
| 3748 | False = DAG.getNode(ISD::XOR, NVT, False, |
Dan Gohman | c7773bf | 2008-02-29 01:44:25 +0000 | [diff] [blame] | 3749 | DAG.getConstant(x, NVT)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3750 | Result = DAG.getNode(ISD::SELECT, NVT, Tmp3, True, False); |
| 3751 | break; |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 3752 | } else { |
| 3753 | assert(0 && "Do not know how to expand FP_TO_SINT yet!"); |
| 3754 | } |
| 3755 | break; |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 3756 | } |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3757 | break; |
Evan Cheng | 6af00d5 | 2006-12-13 01:57:55 +0000 | [diff] [blame] | 3758 | case Expand: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3759 | MVT VT = Op.getValueType(); |
| 3760 | MVT OVT = Node->getOperand(0).getValueType(); |
Dale Johannesen | fcf4d24 | 2007-10-11 23:32:15 +0000 | [diff] [blame] | 3761 | // Convert ppcf128 to i32 |
Dale Johannesen | 6eaeff2 | 2007-10-10 01:01:31 +0000 | [diff] [blame] | 3762 | if (OVT == MVT::ppcf128 && VT == MVT::i32) { |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3763 | if (Node->getOpcode() == ISD::FP_TO_SINT) { |
| 3764 | Result = DAG.getNode(ISD::FP_ROUND_INREG, MVT::ppcf128, |
| 3765 | Node->getOperand(0), DAG.getValueType(MVT::f64)); |
| 3766 | Result = DAG.getNode(ISD::FP_ROUND, MVT::f64, Result, |
| 3767 | DAG.getIntPtrConstant(1)); |
| 3768 | Result = DAG.getNode(ISD::FP_TO_SINT, VT, Result); |
| 3769 | } else { |
Dale Johannesen | fcf4d24 | 2007-10-11 23:32:15 +0000 | [diff] [blame] | 3770 | const uint64_t TwoE31[] = {0x41e0000000000000LL, 0}; |
| 3771 | APFloat apf = APFloat(APInt(128, 2, TwoE31)); |
| 3772 | Tmp2 = DAG.getConstantFP(apf, OVT); |
| 3773 | // X>=2^31 ? (int)(X-2^31)+0x80000000 : (int)X |
| 3774 | // FIXME: generated code sucks. |
| 3775 | Result = DAG.getNode(ISD::SELECT_CC, VT, Node->getOperand(0), Tmp2, |
| 3776 | DAG.getNode(ISD::ADD, MVT::i32, |
| 3777 | DAG.getNode(ISD::FP_TO_SINT, VT, |
| 3778 | DAG.getNode(ISD::FSUB, OVT, |
| 3779 | Node->getOperand(0), Tmp2)), |
| 3780 | DAG.getConstant(0x80000000, MVT::i32)), |
| 3781 | DAG.getNode(ISD::FP_TO_SINT, VT, |
| 3782 | Node->getOperand(0)), |
| 3783 | DAG.getCondCode(ISD::SETGE)); |
| 3784 | } |
Dale Johannesen | 6eaeff2 | 2007-10-10 01:01:31 +0000 | [diff] [blame] | 3785 | break; |
| 3786 | } |
Dan Gohman | a2e9485 | 2008-03-10 23:03:31 +0000 | [diff] [blame] | 3787 | // Convert f32 / f64 to i32 / i64 / i128. |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 3788 | RTLIB::Libcall LC = (Node->getOpcode() == ISD::FP_TO_SINT) ? |
| 3789 | RTLIB::getFPTOSINT(OVT, VT) : RTLIB::getFPTOUINT(OVT, VT); |
| 3790 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpectd fp-to-int conversion!"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3791 | SDValue Dummy; |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 3792 | Result = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Dummy); |
Evan Cheng | 6af00d5 | 2006-12-13 01:57:55 +0000 | [diff] [blame] | 3793 | break; |
| 3794 | } |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3795 | case Promote: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3796 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 3797 | Result = DAG.UpdateNodeOperands(Result, LegalizeOp(Tmp1)); |
| 3798 | Result = LegalizeOp(Result); |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3799 | break; |
| 3800 | } |
| 3801 | break; |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 3802 | |
Chris Lattner | f2670a8 | 2008-01-16 06:57:07 +0000 | [diff] [blame] | 3803 | case ISD::FP_EXTEND: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3804 | MVT DstVT = Op.getValueType(); |
| 3805 | MVT SrcVT = Op.getOperand(0).getValueType(); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3806 | if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { |
| 3807 | // The only other way we can lower this is to turn it into a STORE, |
| 3808 | // LOAD pair, targetting a temporary location (a stack slot). |
| 3809 | Result = EmitStackConvert(Node->getOperand(0), SrcVT, DstVT); |
| 3810 | break; |
Chris Lattner | f2670a8 | 2008-01-16 06:57:07 +0000 | [diff] [blame] | 3811 | } |
| 3812 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 3813 | case Expand: assert(0 && "Shouldn't need to expand other operators here!"); |
| 3814 | case Legal: |
| 3815 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3816 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 3817 | break; |
| 3818 | case Promote: |
| 3819 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 3820 | Result = DAG.getNode(ISD::FP_EXTEND, Op.getValueType(), Tmp1); |
| 3821 | break; |
| 3822 | } |
| 3823 | break; |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3824 | } |
Dale Johannesen | 5411a39 | 2007-08-09 01:04:01 +0000 | [diff] [blame] | 3825 | case ISD::FP_ROUND: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3826 | MVT DstVT = Op.getValueType(); |
| 3827 | MVT SrcVT = Op.getOperand(0).getValueType(); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3828 | if (TLI.getConvertAction(SrcVT, DstVT) == TargetLowering::Expand) { |
| 3829 | if (SrcVT == MVT::ppcf128) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3830 | SDValue Lo; |
Dale Johannesen | 713ed3f | 2008-01-20 01:18:38 +0000 | [diff] [blame] | 3831 | ExpandOp(Node->getOperand(0), Lo, Result); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3832 | // Round it the rest of the way (e.g. to f32) if needed. |
Dale Johannesen | 713ed3f | 2008-01-20 01:18:38 +0000 | [diff] [blame] | 3833 | if (DstVT!=MVT::f64) |
| 3834 | Result = DAG.getNode(ISD::FP_ROUND, DstVT, Result, Op.getOperand(1)); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3835 | break; |
Dale Johannesen | 5411a39 | 2007-08-09 01:04:01 +0000 | [diff] [blame] | 3836 | } |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3837 | // The only other way we can lower this is to turn it into a STORE, |
| 3838 | // LOAD pair, targetting a temporary location (a stack slot). |
| 3839 | Result = EmitStackConvert(Node->getOperand(0), DstVT, DstVT); |
| 3840 | break; |
Dale Johannesen | 849f214 | 2007-07-03 00:53:03 +0000 | [diff] [blame] | 3841 | } |
Chris Lattner | f2670a8 | 2008-01-16 06:57:07 +0000 | [diff] [blame] | 3842 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 3843 | case Expand: assert(0 && "Shouldn't need to expand other operators here!"); |
| 3844 | case Legal: |
| 3845 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3846 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Chris Lattner | f2670a8 | 2008-01-16 06:57:07 +0000 | [diff] [blame] | 3847 | break; |
| 3848 | case Promote: |
| 3849 | Tmp1 = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3850 | Result = DAG.getNode(ISD::FP_ROUND, Op.getValueType(), Tmp1, |
| 3851 | Node->getOperand(1)); |
Chris Lattner | f2670a8 | 2008-01-16 06:57:07 +0000 | [diff] [blame] | 3852 | break; |
| 3853 | } |
| 3854 | break; |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 3855 | } |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 3856 | case ISD::ANY_EXTEND: |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3857 | case ISD::ZERO_EXTEND: |
| 3858 | case ISD::SIGN_EXTEND: |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3859 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3860 | case Expand: assert(0 && "Shouldn't need to expand other operators here!"); |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3861 | case Legal: |
| 3862 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Scott Michel | 82747a5 | 2008-04-30 00:26:38 +0000 | [diff] [blame] | 3863 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
Scott Michel | 0123b7d | 2008-02-15 23:05:48 +0000 | [diff] [blame] | 3864 | if (TLI.getOperationAction(Node->getOpcode(), Node->getValueType(0)) == |
| 3865 | TargetLowering::Custom) { |
Scott Michel | 82747a5 | 2008-04-30 00:26:38 +0000 | [diff] [blame] | 3866 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3867 | if (Tmp1.getNode()) Result = Tmp1; |
Scott Michel | 0123b7d | 2008-02-15 23:05:48 +0000 | [diff] [blame] | 3868 | } |
Chris Lattner | fa9c801 | 2005-07-28 23:31:12 +0000 | [diff] [blame] | 3869 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 3870 | case Promote: |
| 3871 | switch (Node->getOpcode()) { |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 3872 | case ISD::ANY_EXTEND: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3873 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 3874 | Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Tmp1); |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 3875 | break; |
Chris Lattner | 1713e73 | 2005-01-16 00:38:00 +0000 | [diff] [blame] | 3876 | case ISD::ZERO_EXTEND: |
| 3877 | Result = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 3878 | Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 3879 | Result = DAG.getZeroExtendInReg(Result, |
| 3880 | Node->getOperand(0).getValueType()); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 3881 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 3882 | case ISD::SIGN_EXTEND: |
Chris Lattner | 1713e73 | 2005-01-16 00:38:00 +0000 | [diff] [blame] | 3883 | Result = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 3884 | Result = DAG.getNode(ISD::ANY_EXTEND, Op.getValueType(), Result); |
Chris Lattner | 1713e73 | 2005-01-16 00:38:00 +0000 | [diff] [blame] | 3885 | Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 3886 | Result, |
| 3887 | DAG.getValueType(Node->getOperand(0).getValueType())); |
Chris Lattner | 1713e73 | 2005-01-16 00:38:00 +0000 | [diff] [blame] | 3888 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 3889 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 3890 | } |
| 3891 | break; |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 3892 | case ISD::FP_ROUND_INREG: |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 3893 | case ISD::SIGN_EXTEND_INREG: { |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 3894 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3895 | MVT ExtraVT = cast<VTSDNode>(Node->getOperand(1))->getVT(); |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3896 | |
| 3897 | // If this operation is not supported, convert it to a shl/shr or load/store |
| 3898 | // pair. |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 3899 | switch (TLI.getOperationAction(Node->getOpcode(), ExtraVT)) { |
| 3900 | default: assert(0 && "This action not supported for this op yet!"); |
| 3901 | case TargetLowering::Legal: |
Chris Lattner | c52ad4f | 2006-01-28 10:58:55 +0000 | [diff] [blame] | 3902 | Result = DAG.UpdateNodeOperands(Result, Tmp1, Node->getOperand(1)); |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 3903 | break; |
| 3904 | case TargetLowering::Expand: |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3905 | // If this is an integer extend and shifts are supported, do that. |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 3906 | if (Node->getOpcode() == ISD::SIGN_EXTEND_INREG) { |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3907 | // NOTE: we could fall back on load/store here too for targets without |
| 3908 | // SAR. However, it is doubtful that any exist. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3909 | unsigned BitsDiff = Node->getValueType(0).getSizeInBits() - |
| 3910 | ExtraVT.getSizeInBits(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3911 | SDValue ShiftCst = DAG.getConstant(BitsDiff, TLI.getShiftAmountTy()); |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3912 | Result = DAG.getNode(ISD::SHL, Node->getValueType(0), |
| 3913 | Node->getOperand(0), ShiftCst); |
| 3914 | Result = DAG.getNode(ISD::SRA, Node->getValueType(0), |
| 3915 | Result, ShiftCst); |
| 3916 | } else if (Node->getOpcode() == ISD::FP_ROUND_INREG) { |
Jim Laskey | 2d84c4c | 2006-10-11 17:52:19 +0000 | [diff] [blame] | 3917 | // The only way we can lower this is to turn it into a TRUNCSTORE, |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3918 | // EXTLOAD pair, targetting a temporary location (a stack slot). |
| 3919 | |
| 3920 | // NOTE: there is a choice here between constantly creating new stack |
| 3921 | // slots and always reusing the same one. We currently always create |
| 3922 | // new ones, as reuse may inhibit scheduling. |
Chris Lattner | a66bb39 | 2008-01-16 07:51:34 +0000 | [diff] [blame] | 3923 | Result = EmitStackConvert(Node->getOperand(0), ExtraVT, |
| 3924 | Node->getValueType(0)); |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3925 | } else { |
| 3926 | assert(0 && "Unknown op"); |
| 3927 | } |
Chris Lattner | 55ba8fb | 2005-01-16 07:29:19 +0000 | [diff] [blame] | 3928 | break; |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3929 | } |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 3930 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 3931 | } |
Duncan Sands | 36397f5 | 2007-07-27 12:58:54 +0000 | [diff] [blame] | 3932 | case ISD::TRAMPOLINE: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3933 | SDValue Ops[6]; |
Duncan Sands | 36397f5 | 2007-07-27 12:58:54 +0000 | [diff] [blame] | 3934 | for (unsigned i = 0; i != 6; ++i) |
| 3935 | Ops[i] = LegalizeOp(Node->getOperand(i)); |
| 3936 | Result = DAG.UpdateNodeOperands(Result, Ops, 6); |
| 3937 | // The only option for this node is to custom lower it. |
| 3938 | Result = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3939 | assert(Result.getNode() && "Should always custom lower!"); |
Duncan Sands | f7331b3 | 2007-09-11 14:10:23 +0000 | [diff] [blame] | 3940 | |
| 3941 | // Since trampoline produces two values, make sure to remember that we |
| 3942 | // legalized both of them. |
| 3943 | Tmp1 = LegalizeOp(Result.getValue(1)); |
| 3944 | Result = LegalizeOp(Result); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3945 | AddLegalizedOperand(SDValue(Node, 0), Result); |
| 3946 | AddLegalizedOperand(SDValue(Node, 1), Tmp1); |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 3947 | return Op.getResNo() ? Tmp1 : Result; |
Duncan Sands | 36397f5 | 2007-07-27 12:58:54 +0000 | [diff] [blame] | 3948 | } |
Dan Gohman | 9c78a39 | 2008-05-14 00:43:10 +0000 | [diff] [blame] | 3949 | case ISD::FLT_ROUNDS_: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3950 | MVT VT = Node->getValueType(0); |
Anton Korobeynikov | 917c2a6 | 2007-11-15 23:25:33 +0000 | [diff] [blame] | 3951 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 3952 | default: assert(0 && "This action not supported for this op yet!"); |
| 3953 | case TargetLowering::Custom: |
| 3954 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3955 | if (Result.getNode()) break; |
Anton Korobeynikov | 917c2a6 | 2007-11-15 23:25:33 +0000 | [diff] [blame] | 3956 | // Fall Thru |
| 3957 | case TargetLowering::Legal: |
| 3958 | // If this operation is not supported, lower it to constant 1 |
| 3959 | Result = DAG.getConstant(1, VT); |
| 3960 | break; |
| 3961 | } |
Dan Gohman | 9ab9ee8 | 2008-05-12 16:07:15 +0000 | [diff] [blame] | 3962 | break; |
Anton Korobeynikov | 917c2a6 | 2007-11-15 23:25:33 +0000 | [diff] [blame] | 3963 | } |
Chris Lattner | 41bab0b | 2008-01-15 21:58:08 +0000 | [diff] [blame] | 3964 | case ISD::TRAP: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 3965 | MVT VT = Node->getValueType(0); |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3966 | switch (TLI.getOperationAction(Node->getOpcode(), VT)) { |
| 3967 | default: assert(0 && "This action not supported for this op yet!"); |
Chris Lattner | 41bab0b | 2008-01-15 21:58:08 +0000 | [diff] [blame] | 3968 | case TargetLowering::Legal: |
| 3969 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
| 3970 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 3971 | break; |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3972 | case TargetLowering::Custom: |
| 3973 | Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 3974 | if (Result.getNode()) break; |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3975 | // Fall Thru |
Chris Lattner | 41bab0b | 2008-01-15 21:58:08 +0000 | [diff] [blame] | 3976 | case TargetLowering::Expand: |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3977 | // If this operation is not supported, lower it to 'abort()' call |
Chris Lattner | 41bab0b | 2008-01-15 21:58:08 +0000 | [diff] [blame] | 3978 | Tmp1 = LegalizeOp(Node->getOperand(0)); |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3979 | TargetLowering::ArgListTy Args; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 3980 | std::pair<SDValue,SDValue> CallResult = |
Duncan Sands | 00fee65 | 2008-02-14 17:28:50 +0000 | [diff] [blame] | 3981 | TLI.LowerCallTo(Tmp1, Type::VoidTy, |
| 3982 | false, false, false, CallingConv::C, false, |
Bill Wendling | 056292f | 2008-09-16 21:48:12 +0000 | [diff] [blame] | 3983 | DAG.getExternalSymbol("abort", TLI.getPointerTy()), |
Chris Lattner | 034f12e | 2008-01-15 22:09:33 +0000 | [diff] [blame] | 3984 | Args, DAG); |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3985 | Result = CallResult.second; |
| 3986 | break; |
| 3987 | } |
Chris Lattner | 41bab0b | 2008-01-15 21:58:08 +0000 | [diff] [blame] | 3988 | break; |
Anton Korobeynikov | 66fac79 | 2008-01-15 07:02:33 +0000 | [diff] [blame] | 3989 | } |
Chris Lattner | 45b8caf | 2005-01-15 07:15:18 +0000 | [diff] [blame] | 3990 | } |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3991 | |
Chris Lattner | 4ddd283 | 2006-04-08 04:13:17 +0000 | [diff] [blame] | 3992 | assert(Result.getValueType() == Op.getValueType() && |
| 3993 | "Bad legalization!"); |
| 3994 | |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 3995 | // Make sure that the generated code is itself legal. |
| 3996 | if (Result != Op) |
| 3997 | Result = LegalizeOp(Result); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 3998 | |
Chris Lattner | 45982da | 2005-05-12 16:53:42 +0000 | [diff] [blame] | 3999 | // Note that LegalizeOp may be reentered even from single-use nodes, which |
| 4000 | // means that we always must cache transformed nodes. |
| 4001 | AddLegalizedOperand(Op, Result); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 4002 | return Result; |
| 4003 | } |
| 4004 | |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4005 | /// PromoteOp - Given an operation that produces a value in an invalid type, |
| 4006 | /// promote it to compute the value into a larger type. The produced value will |
| 4007 | /// have the correct bits for the low portion of the register, but no guarantee |
| 4008 | /// is made about the top bits: it may be zero, sign-extended, or garbage. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4009 | SDValue SelectionDAGLegalize::PromoteOp(SDValue Op) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4010 | MVT VT = Op.getValueType(); |
| 4011 | MVT NVT = TLI.getTypeToTransformTo(VT); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4012 | assert(getTypeAction(VT) == Promote && |
| 4013 | "Caller should expand or legalize operands that are not promotable!"); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 4014 | assert(NVT.bitsGT(VT) && NVT.isInteger() == VT.isInteger() && |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4015 | "Cannot promote to smaller type!"); |
| 4016 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4017 | SDValue Tmp1, Tmp2, Tmp3; |
| 4018 | SDValue Result; |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4019 | SDNode *Node = Op.getNode(); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4020 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4021 | DenseMap<SDValue, SDValue>::iterator I = PromotedNodes.find(Op); |
Chris Lattner | 6fdcb25 | 2005-09-02 20:32:45 +0000 | [diff] [blame] | 4022 | if (I != PromotedNodes.end()) return I->second; |
Chris Lattner | 45982da | 2005-05-12 16:53:42 +0000 | [diff] [blame] | 4023 | |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4024 | switch (Node->getOpcode()) { |
Chris Lattner | d5d0f9b | 2005-08-16 21:55:35 +0000 | [diff] [blame] | 4025 | case ISD::CopyFromReg: |
| 4026 | assert(0 && "CopyFromReg must be legal!"); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4027 | default: |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 4028 | #ifndef NDEBUG |
Dan Gohman | 3983358 | 2007-06-04 16:17:33 +0000 | [diff] [blame] | 4029 | cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 4030 | #endif |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4031 | assert(0 && "Do not know how to promote this operator!"); |
| 4032 | abort(); |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 4033 | case ISD::UNDEF: |
| 4034 | Result = DAG.getNode(ISD::UNDEF, NVT); |
| 4035 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4036 | case ISD::Constant: |
Chris Lattner | ec176e3 | 2005-08-30 16:56:19 +0000 | [diff] [blame] | 4037 | if (VT != MVT::i1) |
| 4038 | Result = DAG.getNode(ISD::SIGN_EXTEND, NVT, Op); |
| 4039 | else |
| 4040 | Result = DAG.getNode(ISD::ZERO_EXTEND, NVT, Op); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4041 | assert(isa<ConstantSDNode>(Result) && "Didn't constant fold zext?"); |
| 4042 | break; |
| 4043 | case ISD::ConstantFP: |
| 4044 | Result = DAG.getNode(ISD::FP_EXTEND, NVT, Op); |
| 4045 | assert(isa<ConstantFPSDNode>(Result) && "Didn't constant fold fp_extend?"); |
| 4046 | break; |
Chris Lattner | ef5cd1d | 2005-01-18 17:54:55 +0000 | [diff] [blame] | 4047 | |
Chris Lattner | 82fbfb6 | 2005-01-18 02:59:52 +0000 | [diff] [blame] | 4048 | case ISD::SETCC: |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4049 | assert(isTypeLegal(TLI.getSetCCResultType(Node->getOperand(0))) |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4050 | && "SetCC type is not legal??"); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4051 | Result = DAG.getNode(ISD::SETCC, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4052 | TLI.getSetCCResultType(Node->getOperand(0)), |
| 4053 | Node->getOperand(0), Node->getOperand(1), |
| 4054 | Node->getOperand(2)); |
Chris Lattner | 82fbfb6 | 2005-01-18 02:59:52 +0000 | [diff] [blame] | 4055 | break; |
Chris Lattner | fdfded5 | 2006-04-12 16:20:43 +0000 | [diff] [blame] | 4056 | |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4057 | case ISD::TRUNCATE: |
| 4058 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 4059 | case Legal: |
| 4060 | Result = LegalizeOp(Node->getOperand(0)); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 4061 | assert(Result.getValueType().bitsGE(NVT) && |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4062 | "This truncation doesn't make sense!"); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 4063 | if (Result.getValueType().bitsGT(NVT)) // Truncate to NVT instead of VT |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4064 | Result = DAG.getNode(ISD::TRUNCATE, NVT, Result); |
| 4065 | break; |
Chris Lattner | e76ad6d | 2005-01-28 22:52:50 +0000 | [diff] [blame] | 4066 | case Promote: |
| 4067 | // The truncation is not required, because we don't guarantee anything |
| 4068 | // about high bits anyway. |
| 4069 | Result = PromoteOp(Node->getOperand(0)); |
| 4070 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4071 | case Expand: |
Nate Begeman | 79e46ac | 2005-04-04 00:57:08 +0000 | [diff] [blame] | 4072 | ExpandOp(Node->getOperand(0), Tmp1, Tmp2); |
| 4073 | // Truncate the low part of the expanded value to the result type |
Chris Lattner | e21c305 | 2005-08-01 18:16:37 +0000 | [diff] [blame] | 4074 | Result = DAG.getNode(ISD::TRUNCATE, NVT, Tmp1); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4075 | } |
| 4076 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4077 | case ISD::SIGN_EXTEND: |
| 4078 | case ISD::ZERO_EXTEND: |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 4079 | case ISD::ANY_EXTEND: |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4080 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 4081 | case Expand: assert(0 && "BUG: Smaller reg should have been promoted!"); |
| 4082 | case Legal: |
| 4083 | // Input is legal? Just do extend all the way to the larger type. |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4084 | Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4085 | break; |
| 4086 | case Promote: |
| 4087 | // Promote the reg if it's smaller. |
| 4088 | Result = PromoteOp(Node->getOperand(0)); |
| 4089 | // The high bits are not guaranteed to be anything. Insert an extend. |
| 4090 | if (Node->getOpcode() == ISD::SIGN_EXTEND) |
Chris Lattner | 595dc54 | 2005-02-04 18:39:19 +0000 | [diff] [blame] | 4091 | Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4092 | DAG.getValueType(Node->getOperand(0).getValueType())); |
Chris Lattner | 13c78e2 | 2005-09-02 00:18:10 +0000 | [diff] [blame] | 4093 | else if (Node->getOpcode() == ISD::ZERO_EXTEND) |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 4094 | Result = DAG.getZeroExtendInReg(Result, |
| 4095 | Node->getOperand(0).getValueType()); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4096 | break; |
| 4097 | } |
| 4098 | break; |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4099 | case ISD::BIT_CONVERT: |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4100 | Result = EmitStackConvert(Node->getOperand(0), Node->getValueType(0), |
| 4101 | Node->getValueType(0)); |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4102 | Result = PromoteOp(Result); |
| 4103 | break; |
| 4104 | |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4105 | case ISD::FP_EXTEND: |
| 4106 | assert(0 && "Case not implemented. Dynamically dead with 2 FP types!"); |
| 4107 | case ISD::FP_ROUND: |
| 4108 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 4109 | case Expand: assert(0 && "BUG: Cannot expand FP regs!"); |
| 4110 | case Promote: assert(0 && "Unreachable with 2 FP types!"); |
| 4111 | case Legal: |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 4112 | if (Node->getConstantOperandVal(1) == 0) { |
| 4113 | // Input is legal? Do an FP_ROUND_INREG. |
| 4114 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Node->getOperand(0), |
| 4115 | DAG.getValueType(VT)); |
| 4116 | } else { |
| 4117 | // Just remove the truncate, it isn't affecting the value. |
| 4118 | Result = DAG.getNode(ISD::FP_ROUND, NVT, Node->getOperand(0), |
| 4119 | Node->getOperand(1)); |
| 4120 | } |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4121 | break; |
| 4122 | } |
| 4123 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4124 | case ISD::SINT_TO_FP: |
| 4125 | case ISD::UINT_TO_FP: |
| 4126 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 4127 | case Legal: |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 4128 | // No extra round required here. |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4129 | Result = DAG.getNode(Node->getOpcode(), NVT, Node->getOperand(0)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4130 | break; |
| 4131 | |
| 4132 | case Promote: |
| 4133 | Result = PromoteOp(Node->getOperand(0)); |
| 4134 | if (Node->getOpcode() == ISD::SINT_TO_FP) |
| 4135 | Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, Result.getValueType(), |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4136 | Result, |
| 4137 | DAG.getValueType(Node->getOperand(0).getValueType())); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4138 | else |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 4139 | Result = DAG.getZeroExtendInReg(Result, |
| 4140 | Node->getOperand(0).getValueType()); |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 4141 | // No extra round required here. |
| 4142 | Result = DAG.getNode(Node->getOpcode(), NVT, Result); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4143 | break; |
| 4144 | case Expand: |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 4145 | Result = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, NVT, |
| 4146 | Node->getOperand(0)); |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 4147 | // Round if we cannot tolerate excess precision. |
| 4148 | if (NoExcessFPPrecision) |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4149 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4150 | DAG.getValueType(VT)); |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 4151 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4152 | } |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4153 | break; |
| 4154 | |
Chris Lattner | 5e3c5b4 | 2005-12-09 17:32:47 +0000 | [diff] [blame] | 4155 | case ISD::SIGN_EXTEND_INREG: |
| 4156 | Result = PromoteOp(Node->getOperand(0)); |
| 4157 | Result = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Result, |
| 4158 | Node->getOperand(1)); |
| 4159 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4160 | case ISD::FP_TO_SINT: |
| 4161 | case ISD::FP_TO_UINT: |
| 4162 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 4163 | case Legal: |
Evan Cheng | 0b1b9dc | 2006-12-16 02:10:30 +0000 | [diff] [blame] | 4164 | case Expand: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4165 | Tmp1 = Node->getOperand(0); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4166 | break; |
| 4167 | case Promote: |
| 4168 | // The input result is prerounded, so we don't have to do anything |
| 4169 | // special. |
| 4170 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4171 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4172 | } |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 4173 | // If we're promoting a UINT to a larger size, check to see if the new node |
| 4174 | // will be legal. If it isn't, check to see if FP_TO_SINT is legal, since |
| 4175 | // we can use that instead. This allows us to generate better code for |
| 4176 | // FP_TO_UINT for small destination sizes on targets where FP_TO_UINT is not |
| 4177 | // legal, such as PowerPC. |
| 4178 | if (Node->getOpcode() == ISD::FP_TO_UINT && |
Chris Lattner | c9c60f6 | 2005-08-24 16:35:28 +0000 | [diff] [blame] | 4179 | !TLI.isOperationLegal(ISD::FP_TO_UINT, NVT) && |
Nate Begeman | b7f6ef1 | 2005-10-25 23:47:25 +0000 | [diff] [blame] | 4180 | (TLI.isOperationLegal(ISD::FP_TO_SINT, NVT) || |
| 4181 | TLI.getOperationAction(ISD::FP_TO_SINT, NVT)==TargetLowering::Custom)){ |
Nate Begeman | d2558e3 | 2005-08-14 01:20:53 +0000 | [diff] [blame] | 4182 | Result = DAG.getNode(ISD::FP_TO_SINT, NVT, Tmp1); |
| 4183 | } else { |
| 4184 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); |
| 4185 | } |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4186 | break; |
| 4187 | |
Chris Lattner | 2c8086f | 2005-04-02 05:00:07 +0000 | [diff] [blame] | 4188 | case ISD::FABS: |
| 4189 | case ISD::FNEG: |
| 4190 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4191 | assert(Tmp1.getValueType() == NVT); |
| 4192 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); |
| 4193 | // NOTE: we do not have to do any extra rounding here for |
| 4194 | // NoExcessFPPrecision, because we know the input will have the appropriate |
| 4195 | // precision, and these operations don't modify precision at all. |
| 4196 | break; |
| 4197 | |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 4198 | case ISD::FLOG: |
| 4199 | case ISD::FLOG2: |
| 4200 | case ISD::FLOG10: |
| 4201 | case ISD::FEXP: |
| 4202 | case ISD::FEXP2: |
Chris Lattner | da6ba87 | 2005-04-28 21:44:33 +0000 | [diff] [blame] | 4203 | case ISD::FSQRT: |
| 4204 | case ISD::FSIN: |
| 4205 | case ISD::FCOS: |
Dan Gohman | 2bb1e3e | 2008-08-21 18:38:14 +0000 | [diff] [blame] | 4206 | case ISD::FTRUNC: |
| 4207 | case ISD::FFLOOR: |
| 4208 | case ISD::FCEIL: |
| 4209 | case ISD::FRINT: |
| 4210 | case ISD::FNEARBYINT: |
Chris Lattner | da6ba87 | 2005-04-28 21:44:33 +0000 | [diff] [blame] | 4211 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4212 | assert(Tmp1.getValueType() == NVT); |
| 4213 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4214 | if (NoExcessFPPrecision) |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4215 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4216 | DAG.getValueType(VT)); |
Chris Lattner | da6ba87 | 2005-04-28 21:44:33 +0000 | [diff] [blame] | 4217 | break; |
| 4218 | |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 4219 | case ISD::FPOW: |
Chris Lattner | 8b2d42c | 2007-03-03 23:43:21 +0000 | [diff] [blame] | 4220 | case ISD::FPOWI: { |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 4221 | // Promote f32 pow(i) to f64 pow(i). Note that this could insert a libcall |
Chris Lattner | 8b2d42c | 2007-03-03 23:43:21 +0000 | [diff] [blame] | 4222 | // directly as well, which may be better. |
| 4223 | Tmp1 = PromoteOp(Node->getOperand(0)); |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 4224 | Tmp2 = Node->getOperand(1); |
| 4225 | if (Node->getOpcode() == ISD::FPOW) |
| 4226 | Tmp2 = PromoteOp(Tmp2); |
Chris Lattner | 8b2d42c | 2007-03-03 23:43:21 +0000 | [diff] [blame] | 4227 | assert(Tmp1.getValueType() == NVT); |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 4228 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
Chris Lattner | 8b2d42c | 2007-03-03 23:43:21 +0000 | [diff] [blame] | 4229 | if (NoExcessFPPrecision) |
| 4230 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4231 | DAG.getValueType(VT)); |
| 4232 | break; |
| 4233 | } |
| 4234 | |
Dale Johannesen | e00a8a2 | 2008-08-28 02:44:49 +0000 | [diff] [blame] | 4235 | case ISD::ATOMIC_CMP_SWAP_8: |
| 4236 | case ISD::ATOMIC_CMP_SWAP_16: |
| 4237 | case ISD::ATOMIC_CMP_SWAP_32: |
| 4238 | case ISD::ATOMIC_CMP_SWAP_64: { |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4239 | AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 4240 | Tmp2 = PromoteOp(Node->getOperand(2)); |
| 4241 | Tmp3 = PromoteOp(Node->getOperand(3)); |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4242 | Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), |
| 4243 | AtomNode->getBasePtr(), Tmp2, Tmp3, |
Dan Gohman | fd4418f | 2008-06-25 16:07:49 +0000 | [diff] [blame] | 4244 | AtomNode->getSrcValue(), |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4245 | AtomNode->getAlignment()); |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 4246 | // Remember that we legalized the chain. |
| 4247 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); |
| 4248 | break; |
| 4249 | } |
Dale Johannesen | e00a8a2 | 2008-08-28 02:44:49 +0000 | [diff] [blame] | 4250 | case ISD::ATOMIC_LOAD_ADD_8: |
| 4251 | case ISD::ATOMIC_LOAD_SUB_8: |
| 4252 | case ISD::ATOMIC_LOAD_AND_8: |
| 4253 | case ISD::ATOMIC_LOAD_OR_8: |
| 4254 | case ISD::ATOMIC_LOAD_XOR_8: |
| 4255 | case ISD::ATOMIC_LOAD_NAND_8: |
| 4256 | case ISD::ATOMIC_LOAD_MIN_8: |
| 4257 | case ISD::ATOMIC_LOAD_MAX_8: |
| 4258 | case ISD::ATOMIC_LOAD_UMIN_8: |
| 4259 | case ISD::ATOMIC_LOAD_UMAX_8: |
| 4260 | case ISD::ATOMIC_SWAP_8: |
| 4261 | case ISD::ATOMIC_LOAD_ADD_16: |
| 4262 | case ISD::ATOMIC_LOAD_SUB_16: |
| 4263 | case ISD::ATOMIC_LOAD_AND_16: |
| 4264 | case ISD::ATOMIC_LOAD_OR_16: |
| 4265 | case ISD::ATOMIC_LOAD_XOR_16: |
| 4266 | case ISD::ATOMIC_LOAD_NAND_16: |
| 4267 | case ISD::ATOMIC_LOAD_MIN_16: |
| 4268 | case ISD::ATOMIC_LOAD_MAX_16: |
| 4269 | case ISD::ATOMIC_LOAD_UMIN_16: |
| 4270 | case ISD::ATOMIC_LOAD_UMAX_16: |
| 4271 | case ISD::ATOMIC_SWAP_16: |
| 4272 | case ISD::ATOMIC_LOAD_ADD_32: |
| 4273 | case ISD::ATOMIC_LOAD_SUB_32: |
| 4274 | case ISD::ATOMIC_LOAD_AND_32: |
| 4275 | case ISD::ATOMIC_LOAD_OR_32: |
| 4276 | case ISD::ATOMIC_LOAD_XOR_32: |
| 4277 | case ISD::ATOMIC_LOAD_NAND_32: |
| 4278 | case ISD::ATOMIC_LOAD_MIN_32: |
| 4279 | case ISD::ATOMIC_LOAD_MAX_32: |
| 4280 | case ISD::ATOMIC_LOAD_UMIN_32: |
| 4281 | case ISD::ATOMIC_LOAD_UMAX_32: |
| 4282 | case ISD::ATOMIC_SWAP_32: |
| 4283 | case ISD::ATOMIC_LOAD_ADD_64: |
| 4284 | case ISD::ATOMIC_LOAD_SUB_64: |
| 4285 | case ISD::ATOMIC_LOAD_AND_64: |
| 4286 | case ISD::ATOMIC_LOAD_OR_64: |
| 4287 | case ISD::ATOMIC_LOAD_XOR_64: |
| 4288 | case ISD::ATOMIC_LOAD_NAND_64: |
| 4289 | case ISD::ATOMIC_LOAD_MIN_64: |
| 4290 | case ISD::ATOMIC_LOAD_MAX_64: |
| 4291 | case ISD::ATOMIC_LOAD_UMIN_64: |
| 4292 | case ISD::ATOMIC_LOAD_UMAX_64: |
| 4293 | case ISD::ATOMIC_SWAP_64: { |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4294 | AtomicSDNode* AtomNode = cast<AtomicSDNode>(Node); |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 4295 | Tmp2 = PromoteOp(Node->getOperand(2)); |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4296 | Result = DAG.getAtomic(Node->getOpcode(), AtomNode->getChain(), |
| 4297 | AtomNode->getBasePtr(), Tmp2, |
Dan Gohman | fd4418f | 2008-06-25 16:07:49 +0000 | [diff] [blame] | 4298 | AtomNode->getSrcValue(), |
Mon P Wang | 2887310 | 2008-06-25 08:15:39 +0000 | [diff] [blame] | 4299 | AtomNode->getAlignment()); |
Andrew Lenharth | ab0b949 | 2008-02-21 06:45:13 +0000 | [diff] [blame] | 4300 | // Remember that we legalized the chain. |
| 4301 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); |
| 4302 | break; |
| 4303 | } |
| 4304 | |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4305 | case ISD::AND: |
| 4306 | case ISD::OR: |
| 4307 | case ISD::XOR: |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 4308 | case ISD::ADD: |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4309 | case ISD::SUB: |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 4310 | case ISD::MUL: |
| 4311 | // The input may have strange things in the top bits of the registers, but |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4312 | // these operations don't care. They may have weird bits going out, but |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 4313 | // that too is okay if they are integer operations. |
| 4314 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4315 | Tmp2 = PromoteOp(Node->getOperand(1)); |
| 4316 | assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); |
| 4317 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4318 | break; |
| 4319 | case ISD::FADD: |
| 4320 | case ISD::FSUB: |
| 4321 | case ISD::FMUL: |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4322 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4323 | Tmp2 = PromoteOp(Node->getOperand(1)); |
| 4324 | assert(Tmp1.getValueType() == NVT && Tmp2.getValueType() == NVT); |
| 4325 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
| 4326 | |
| 4327 | // Floating point operations will give excess precision that we may not be |
| 4328 | // able to tolerate. If we DO allow excess precision, just leave it, |
| 4329 | // otherwise excise it. |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4330 | // FIXME: Why would we need to round FP ops more than integer ones? |
| 4331 | // Is Round(Add(Add(A,B),C)) != Round(Add(Round(Add(A,B)), C)) |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4332 | if (NoExcessFPPrecision) |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4333 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4334 | DAG.getValueType(VT)); |
Chris Lattner | 0f69b29 | 2005-01-15 06:18:18 +0000 | [diff] [blame] | 4335 | break; |
| 4336 | |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4337 | case ISD::SDIV: |
| 4338 | case ISD::SREM: |
| 4339 | // These operators require that their input be sign extended. |
| 4340 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4341 | Tmp2 = PromoteOp(Node->getOperand(1)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4342 | if (NVT.isInteger()) { |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4343 | Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, |
| 4344 | DAG.getValueType(VT)); |
| 4345 | Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, |
| 4346 | DAG.getValueType(VT)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4347 | } |
| 4348 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
| 4349 | |
| 4350 | // Perform FP_ROUND: this is probably overly pessimistic. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4351 | if (NVT.isFloatingPoint() && NoExcessFPPrecision) |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4352 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4353 | DAG.getValueType(VT)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4354 | break; |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4355 | case ISD::FDIV: |
| 4356 | case ISD::FREM: |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 4357 | case ISD::FCOPYSIGN: |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4358 | // These operators require that their input be fp extended. |
Nate Begeman | ec57fd9 | 2006-05-09 18:20:51 +0000 | [diff] [blame] | 4359 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 4360 | case Expand: assert(0 && "not implemented"); |
| 4361 | case Legal: Tmp1 = LegalizeOp(Node->getOperand(0)); break; |
| 4362 | case Promote: Tmp1 = PromoteOp(Node->getOperand(0)); break; |
Nate Begeman | ec57fd9 | 2006-05-09 18:20:51 +0000 | [diff] [blame] | 4363 | } |
| 4364 | switch (getTypeAction(Node->getOperand(1).getValueType())) { |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 4365 | case Expand: assert(0 && "not implemented"); |
| 4366 | case Legal: Tmp2 = LegalizeOp(Node->getOperand(1)); break; |
| 4367 | case Promote: Tmp2 = PromoteOp(Node->getOperand(1)); break; |
Nate Begeman | ec57fd9 | 2006-05-09 18:20:51 +0000 | [diff] [blame] | 4368 | } |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4369 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
| 4370 | |
| 4371 | // Perform FP_ROUND: this is probably overly pessimistic. |
Chris Lattner | a09f848 | 2006-03-05 05:09:38 +0000 | [diff] [blame] | 4372 | if (NoExcessFPPrecision && Node->getOpcode() != ISD::FCOPYSIGN) |
Chris Lattner | 01b3d73 | 2005-09-28 22:28:18 +0000 | [diff] [blame] | 4373 | Result = DAG.getNode(ISD::FP_ROUND_INREG, NVT, Result, |
| 4374 | DAG.getValueType(VT)); |
| 4375 | break; |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4376 | |
| 4377 | case ISD::UDIV: |
| 4378 | case ISD::UREM: |
| 4379 | // These operators require that their input be zero extended. |
| 4380 | Tmp1 = PromoteOp(Node->getOperand(0)); |
| 4381 | Tmp2 = PromoteOp(Node->getOperand(1)); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4382 | assert(NVT.isInteger() && "Operators don't apply to FP!"); |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 4383 | Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); |
| 4384 | Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4385 | Result = DAG.getNode(Node->getOpcode(), NVT, Tmp1, Tmp2); |
| 4386 | break; |
| 4387 | |
| 4388 | case ISD::SHL: |
| 4389 | Tmp1 = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4390 | Result = DAG.getNode(ISD::SHL, NVT, Tmp1, Node->getOperand(1)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4391 | break; |
| 4392 | case ISD::SRA: |
| 4393 | // The input value must be properly sign extended. |
| 4394 | Tmp1 = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 15e4b01 | 2005-07-10 00:07:11 +0000 | [diff] [blame] | 4395 | Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, |
| 4396 | DAG.getValueType(VT)); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4397 | Result = DAG.getNode(ISD::SRA, NVT, Tmp1, Node->getOperand(1)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4398 | break; |
| 4399 | case ISD::SRL: |
| 4400 | // The input value must be properly zero extended. |
| 4401 | Tmp1 = PromoteOp(Node->getOperand(0)); |
Chris Lattner | 2399356 | 2005-04-13 02:38:47 +0000 | [diff] [blame] | 4402 | Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4403 | Result = DAG.getNode(ISD::SRL, NVT, Tmp1, Node->getOperand(1)); |
Chris Lattner | 8b6fa22 | 2005-01-15 22:16:26 +0000 | [diff] [blame] | 4404 | break; |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4405 | |
| 4406 | case ISD::VAARG: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4407 | Tmp1 = Node->getOperand(0); // Get the chain. |
| 4408 | Tmp2 = Node->getOperand(1); // Get the pointer. |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4409 | if (TLI.getOperationAction(ISD::VAARG, VT) == TargetLowering::Custom) { |
| 4410 | Tmp3 = DAG.getVAArg(VT, Tmp1, Tmp2, Node->getOperand(2)); |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 4411 | Result = TLI.LowerOperation(Tmp3, DAG); |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4412 | } else { |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4413 | const Value *V = cast<SrcValueSDNode>(Node->getOperand(2))->getValue(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4414 | SDValue VAList = DAG.getLoad(TLI.getPointerTy(), Tmp1, Tmp2, V, 0); |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4415 | // Increment the pointer, VAList, to the next vaarg |
| 4416 | Tmp3 = DAG.getNode(ISD::ADD, TLI.getPointerTy(), VAList, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4417 | DAG.getConstant(VT.getSizeInBits()/8, |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4418 | TLI.getPointerTy())); |
| 4419 | // Store the incremented VAList to the legalized pointer |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4420 | Tmp3 = DAG.getStore(VAList.getValue(1), Tmp3, Tmp2, V, 0); |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4421 | // Load the actual argument out of the pointer VAList |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 4422 | Result = DAG.getExtLoad(ISD::EXTLOAD, NVT, Tmp3, VAList, NULL, 0, VT); |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4423 | } |
| 4424 | // Remember that we legalized the chain. |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4425 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); |
Nate Begeman | 0aed784 | 2006-01-28 03:14:31 +0000 | [diff] [blame] | 4426 | break; |
| 4427 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 4428 | case ISD::LOAD: { |
| 4429 | LoadSDNode *LD = cast<LoadSDNode>(Node); |
Evan Cheng | 62f2a3c | 2006-10-10 07:51:21 +0000 | [diff] [blame] | 4430 | ISD::LoadExtType ExtType = ISD::isNON_EXTLoad(Node) |
| 4431 | ? ISD::EXTLOAD : LD->getExtensionType(); |
| 4432 | Result = DAG.getExtLoad(ExtType, NVT, |
| 4433 | LD->getChain(), LD->getBasePtr(), |
Chris Lattner | 55b5708 | 2006-10-10 18:54:19 +0000 | [diff] [blame] | 4434 | LD->getSrcValue(), LD->getSrcValueOffset(), |
Dan Gohman | b625f2f | 2008-01-30 00:15:11 +0000 | [diff] [blame] | 4435 | LD->getMemoryVT(), |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 4436 | LD->isVolatile(), |
| 4437 | LD->getAlignment()); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4438 | // Remember that we legalized the chain. |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4439 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4440 | break; |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 4441 | } |
Scott Michel | 8bf61e8 | 2008-06-02 22:18:03 +0000 | [diff] [blame] | 4442 | case ISD::SELECT: { |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4443 | Tmp2 = PromoteOp(Node->getOperand(1)); // Legalize the op0 |
| 4444 | Tmp3 = PromoteOp(Node->getOperand(2)); // Legalize the op1 |
Scott Michel | 8bf61e8 | 2008-06-02 22:18:03 +0000 | [diff] [blame] | 4445 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4446 | MVT VT2 = Tmp2.getValueType(); |
Scott Michel | 8bf61e8 | 2008-06-02 22:18:03 +0000 | [diff] [blame] | 4447 | assert(VT2 == Tmp3.getValueType() |
Scott Michel | ba12f57 | 2008-06-03 19:13:20 +0000 | [diff] [blame] | 4448 | && "PromoteOp SELECT: Operands 2 and 3 ValueTypes don't match"); |
| 4449 | // Ensure that the resulting node is at least the same size as the operands' |
| 4450 | // value types, because we cannot assume that TLI.getSetCCValueType() is |
| 4451 | // constant. |
| 4452 | Result = DAG.getNode(ISD::SELECT, VT2, Node->getOperand(0), Tmp2, Tmp3); |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4453 | break; |
Scott Michel | 8bf61e8 | 2008-06-02 22:18:03 +0000 | [diff] [blame] | 4454 | } |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 4455 | case ISD::SELECT_CC: |
| 4456 | Tmp2 = PromoteOp(Node->getOperand(2)); // True |
| 4457 | Tmp3 = PromoteOp(Node->getOperand(3)); // False |
| 4458 | Result = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4459 | Node->getOperand(1), Tmp2, Tmp3, Node->getOperand(4)); |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 4460 | break; |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 4461 | case ISD::BSWAP: |
| 4462 | Tmp1 = Node->getOperand(0); |
| 4463 | Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Tmp1); |
| 4464 | Tmp1 = DAG.getNode(ISD::BSWAP, NVT, Tmp1); |
| 4465 | Result = DAG.getNode(ISD::SRL, NVT, Tmp1, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4466 | DAG.getConstant(NVT.getSizeInBits() - |
| 4467 | VT.getSizeInBits(), |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 4468 | TLI.getShiftAmountTy())); |
| 4469 | break; |
Andrew Lenharth | fecf095 | 2005-05-04 19:11:05 +0000 | [diff] [blame] | 4470 | case ISD::CTPOP: |
| 4471 | case ISD::CTTZ: |
| 4472 | case ISD::CTLZ: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4473 | // Zero extend the argument |
| 4474 | Tmp1 = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); |
Andrew Lenharth | fecf095 | 2005-05-04 19:11:05 +0000 | [diff] [blame] | 4475 | // Perform the larger operation, then subtract if needed. |
| 4476 | Tmp1 = DAG.getNode(Node->getOpcode(), NVT, Tmp1); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4477 | switch(Node->getOpcode()) { |
Andrew Lenharth | fecf095 | 2005-05-04 19:11:05 +0000 | [diff] [blame] | 4478 | case ISD::CTPOP: |
| 4479 | Result = Tmp1; |
| 4480 | break; |
| 4481 | case ISD::CTTZ: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4482 | // if Tmp1 == sizeinbits(NVT) then Tmp1 = sizeinbits(Old VT) |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4483 | Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(Tmp1), Tmp1, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4484 | DAG.getConstant(NVT.getSizeInBits(), NVT), |
Dan Gohman | b55757e | 2007-05-18 17:52:13 +0000 | [diff] [blame] | 4485 | ISD::SETEQ); |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 4486 | Result = DAG.getNode(ISD::SELECT, NVT, Tmp2, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4487 | DAG.getConstant(VT.getSizeInBits(), NVT), Tmp1); |
Andrew Lenharth | fecf095 | 2005-05-04 19:11:05 +0000 | [diff] [blame] | 4488 | break; |
| 4489 | case ISD::CTLZ: |
| 4490 | //Tmp1 = Tmp1 - (sizeinbits(NVT) - sizeinbits(Old VT)) |
Jeff Cohen | 00b16889 | 2005-07-27 06:12:32 +0000 | [diff] [blame] | 4491 | Result = DAG.getNode(ISD::SUB, NVT, Tmp1, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4492 | DAG.getConstant(NVT.getSizeInBits() - |
| 4493 | VT.getSizeInBits(), NVT)); |
Andrew Lenharth | fecf095 | 2005-05-04 19:11:05 +0000 | [diff] [blame] | 4494 | break; |
| 4495 | } |
| 4496 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4497 | case ISD::EXTRACT_SUBVECTOR: |
| 4498 | Result = PromoteOp(ExpandEXTRACT_SUBVECTOR(Op)); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4499 | break; |
Chris Lattner | 4aab2f4 | 2006-04-02 05:06:04 +0000 | [diff] [blame] | 4500 | case ISD::EXTRACT_VECTOR_ELT: |
| 4501 | Result = PromoteOp(ExpandEXTRACT_VECTOR_ELT(Op)); |
| 4502 | break; |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4503 | } |
| 4504 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4505 | assert(Result.getNode() && "Didn't set a result!"); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 4506 | |
| 4507 | // Make sure the result is itself legal. |
| 4508 | Result = LegalizeOp(Result); |
| 4509 | |
| 4510 | // Remember that we promoted this! |
Chris Lattner | 03c8546 | 2005-01-15 05:21:40 +0000 | [diff] [blame] | 4511 | AddPromotedOperand(Op, Result); |
| 4512 | return Result; |
| 4513 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 4514 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4515 | /// ExpandEXTRACT_VECTOR_ELT - Expand an EXTRACT_VECTOR_ELT operation into |
| 4516 | /// a legal EXTRACT_VECTOR_ELT operation, scalar code, or memory traffic, |
| 4517 | /// based on the vector type. The return type of this matches the element type |
| 4518 | /// of the vector, which may not be legal for the target. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4519 | SDValue SelectionDAGLegalize::ExpandEXTRACT_VECTOR_ELT(SDValue Op) { |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4520 | // We know that operand #0 is the Vec vector. If the index is a constant |
| 4521 | // or if the invec is a supported hardware type, we can use it. Otherwise, |
| 4522 | // lower to a store then an indexed load. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4523 | SDValue Vec = Op.getOperand(0); |
| 4524 | SDValue Idx = Op.getOperand(1); |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4525 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4526 | MVT TVT = Vec.getValueType(); |
| 4527 | unsigned NumElems = TVT.getVectorNumElements(); |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4528 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4529 | switch (TLI.getOperationAction(ISD::EXTRACT_VECTOR_ELT, TVT)) { |
| 4530 | default: assert(0 && "This action is not supported yet!"); |
| 4531 | case TargetLowering::Custom: { |
| 4532 | Vec = LegalizeOp(Vec); |
| 4533 | Op = DAG.UpdateNodeOperands(Op, Vec, Idx); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4534 | SDValue Tmp3 = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4535 | if (Tmp3.getNode()) |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4536 | return Tmp3; |
| 4537 | break; |
| 4538 | } |
| 4539 | case TargetLowering::Legal: |
| 4540 | if (isTypeLegal(TVT)) { |
| 4541 | Vec = LegalizeOp(Vec); |
| 4542 | Op = DAG.UpdateNodeOperands(Op, Vec, Idx); |
Christopher Lamb | 844228a | 2007-07-26 03:33:13 +0000 | [diff] [blame] | 4543 | return Op; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4544 | } |
| 4545 | break; |
| 4546 | case TargetLowering::Expand: |
| 4547 | break; |
| 4548 | } |
| 4549 | |
| 4550 | if (NumElems == 1) { |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4551 | // This must be an access of the only element. Return it. |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4552 | Op = ScalarizeVectorOp(Vec); |
| 4553 | } else if (!TLI.isTypeLegal(TVT) && isa<ConstantSDNode>(Idx)) { |
Nate Begeman | 55030dc | 2008-01-29 02:24:00 +0000 | [diff] [blame] | 4554 | unsigned NumLoElts = 1 << Log2_32(NumElems-1); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4555 | ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4556 | SDValue Lo, Hi; |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4557 | SplitVectorOp(Vec, Lo, Hi); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 4558 | if (CIdx->getZExtValue() < NumLoElts) { |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4559 | Vec = Lo; |
| 4560 | } else { |
| 4561 | Vec = Hi; |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 4562 | Idx = DAG.getConstant(CIdx->getZExtValue() - NumLoElts, |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4563 | Idx.getValueType()); |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4564 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4565 | |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4566 | // It's now an extract from the appropriate high or low part. Recurse. |
| 4567 | Op = DAG.UpdateNodeOperands(Op, Vec, Idx); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4568 | Op = ExpandEXTRACT_VECTOR_ELT(Op); |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4569 | } else { |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4570 | // Store the value to a temporary stack slot, then LOAD the scalar |
| 4571 | // element back out. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4572 | SDValue StackPtr = DAG.CreateStackTemporary(Vec.getValueType()); |
| 4573 | SDValue Ch = DAG.getStore(DAG.getEntryNode(), Vec, StackPtr, NULL, 0); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4574 | |
| 4575 | // Add the offset to the index. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4576 | unsigned EltSize = Op.getValueType().getSizeInBits()/8; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4577 | Idx = DAG.getNode(ISD::MUL, Idx.getValueType(), Idx, |
| 4578 | DAG.getConstant(EltSize, Idx.getValueType())); |
Bill Wendling | 90bfc2d | 2007-10-18 08:32:37 +0000 | [diff] [blame] | 4579 | |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 4580 | if (Idx.getValueType().bitsGT(TLI.getPointerTy())) |
Chris Lattner | f185e67 | 2007-10-19 16:47:35 +0000 | [diff] [blame] | 4581 | Idx = DAG.getNode(ISD::TRUNCATE, TLI.getPointerTy(), Idx); |
Bill Wendling | 90bfc2d | 2007-10-18 08:32:37 +0000 | [diff] [blame] | 4582 | else |
Chris Lattner | f185e67 | 2007-10-19 16:47:35 +0000 | [diff] [blame] | 4583 | Idx = DAG.getNode(ISD::ZERO_EXTEND, TLI.getPointerTy(), Idx); |
Bill Wendling | 90bfc2d | 2007-10-18 08:32:37 +0000 | [diff] [blame] | 4584 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4585 | StackPtr = DAG.getNode(ISD::ADD, Idx.getValueType(), Idx, StackPtr); |
| 4586 | |
| 4587 | Op = DAG.getLoad(Op.getValueType(), Ch, StackPtr, NULL, 0); |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4588 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4589 | return Op; |
Chris Lattner | 1597221 | 2006-03-31 17:55:51 +0000 | [diff] [blame] | 4590 | } |
| 4591 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4592 | /// ExpandEXTRACT_SUBVECTOR - Expand a EXTRACT_SUBVECTOR operation. For now |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4593 | /// we assume the operation can be split if it is not already legal. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4594 | SDValue SelectionDAGLegalize::ExpandEXTRACT_SUBVECTOR(SDValue Op) { |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4595 | // We know that operand #0 is the Vec vector. For now we assume the index |
| 4596 | // is a constant and that the extracted result is a supported hardware type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4597 | SDValue Vec = Op.getOperand(0); |
| 4598 | SDValue Idx = LegalizeOp(Op.getOperand(1)); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4599 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4600 | unsigned NumElems = Vec.getValueType().getVectorNumElements(); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4601 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4602 | if (NumElems == Op.getValueType().getVectorNumElements()) { |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4603 | // This must be an access of the desired vector length. Return it. |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4604 | return Vec; |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4605 | } |
| 4606 | |
| 4607 | ConstantSDNode *CIdx = cast<ConstantSDNode>(Idx); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4608 | SDValue Lo, Hi; |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4609 | SplitVectorOp(Vec, Lo, Hi); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 4610 | if (CIdx->getZExtValue() < NumElems/2) { |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4611 | Vec = Lo; |
| 4612 | } else { |
| 4613 | Vec = Hi; |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 4614 | Idx = DAG.getConstant(CIdx->getZExtValue() - NumElems/2, |
| 4615 | Idx.getValueType()); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4616 | } |
| 4617 | |
| 4618 | // It's now an extract from the appropriate high or low part. Recurse. |
| 4619 | Op = DAG.UpdateNodeOperands(Op, Vec, Idx); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 4620 | return ExpandEXTRACT_SUBVECTOR(Op); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 4621 | } |
| 4622 | |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4623 | /// LegalizeSetCCOperands - Attempts to create a legal LHS and RHS for a SETCC |
| 4624 | /// with condition CC on the current target. This usually involves legalizing |
| 4625 | /// or promoting the arguments. In the case where LHS and RHS must be expanded, |
| 4626 | /// there may be no choice but to create a new SetCC node to represent the |
| 4627 | /// legalized value of setcc lhs, rhs. In this case, the value is returned in |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4628 | /// LHS, and the SDValue returned in RHS has a nil SDNode value. |
| 4629 | void SelectionDAGLegalize::LegalizeSetCCOperands(SDValue &LHS, |
| 4630 | SDValue &RHS, |
| 4631 | SDValue &CC) { |
| 4632 | SDValue Tmp1, Tmp2, Tmp3, Result; |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4633 | |
| 4634 | switch (getTypeAction(LHS.getValueType())) { |
| 4635 | case Legal: |
| 4636 | Tmp1 = LegalizeOp(LHS); // LHS |
| 4637 | Tmp2 = LegalizeOp(RHS); // RHS |
| 4638 | break; |
| 4639 | case Promote: |
| 4640 | Tmp1 = PromoteOp(LHS); // LHS |
| 4641 | Tmp2 = PromoteOp(RHS); // RHS |
| 4642 | |
| 4643 | // If this is an FP compare, the operands have already been extended. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4644 | if (LHS.getValueType().isInteger()) { |
| 4645 | MVT VT = LHS.getValueType(); |
| 4646 | MVT NVT = TLI.getTypeToTransformTo(VT); |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4647 | |
| 4648 | // Otherwise, we have to insert explicit sign or zero extends. Note |
| 4649 | // that we could insert sign extends for ALL conditions, but zero extend |
| 4650 | // is cheaper on many machines (an AND instead of two shifts), so prefer |
| 4651 | // it. |
| 4652 | switch (cast<CondCodeSDNode>(CC)->get()) { |
| 4653 | default: assert(0 && "Unknown integer comparison!"); |
| 4654 | case ISD::SETEQ: |
| 4655 | case ISD::SETNE: |
| 4656 | case ISD::SETUGE: |
| 4657 | case ISD::SETUGT: |
| 4658 | case ISD::SETULE: |
| 4659 | case ISD::SETULT: |
| 4660 | // ALL of these operations will work if we either sign or zero extend |
| 4661 | // the operands (including the unsigned comparisons!). Zero extend is |
| 4662 | // usually a simpler/cheaper operation, so prefer it. |
| 4663 | Tmp1 = DAG.getZeroExtendInReg(Tmp1, VT); |
| 4664 | Tmp2 = DAG.getZeroExtendInReg(Tmp2, VT); |
| 4665 | break; |
| 4666 | case ISD::SETGE: |
| 4667 | case ISD::SETGT: |
| 4668 | case ISD::SETLT: |
| 4669 | case ISD::SETLE: |
| 4670 | Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp1, |
| 4671 | DAG.getValueType(VT)); |
| 4672 | Tmp2 = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Tmp2, |
| 4673 | DAG.getValueType(VT)); |
| 4674 | break; |
| 4675 | } |
| 4676 | } |
| 4677 | break; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4678 | case Expand: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4679 | MVT VT = LHS.getValueType(); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4680 | if (VT == MVT::f32 || VT == MVT::f64) { |
| 4681 | // Expand into one or more soft-fp libcall(s). |
Evan Cheng | 6518c6e | 2008-07-01 21:35:46 +0000 | [diff] [blame] | 4682 | RTLIB::Libcall LC1 = RTLIB::UNKNOWN_LIBCALL, LC2 = RTLIB::UNKNOWN_LIBCALL; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4683 | switch (cast<CondCodeSDNode>(CC)->get()) { |
| 4684 | case ISD::SETEQ: |
| 4685 | case ISD::SETOEQ: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4686 | LC1 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4687 | break; |
| 4688 | case ISD::SETNE: |
| 4689 | case ISD::SETUNE: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4690 | LC1 = (VT == MVT::f32) ? RTLIB::UNE_F32 : RTLIB::UNE_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4691 | break; |
| 4692 | case ISD::SETGE: |
| 4693 | case ISD::SETOGE: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4694 | LC1 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4695 | break; |
| 4696 | case ISD::SETLT: |
| 4697 | case ISD::SETOLT: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4698 | LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4699 | break; |
| 4700 | case ISD::SETLE: |
| 4701 | case ISD::SETOLE: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4702 | LC1 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4703 | break; |
| 4704 | case ISD::SETGT: |
| 4705 | case ISD::SETOGT: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4706 | LC1 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4707 | break; |
| 4708 | case ISD::SETUO: |
Evan Cheng | d385fd6 | 2007-01-31 09:29:11 +0000 | [diff] [blame] | 4709 | LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; |
| 4710 | break; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4711 | case ISD::SETO: |
Evan Cheng | 5efdecc | 2007-02-03 00:43:46 +0000 | [diff] [blame] | 4712 | LC1 = (VT == MVT::f32) ? RTLIB::O_F32 : RTLIB::O_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4713 | break; |
| 4714 | default: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4715 | LC1 = (VT == MVT::f32) ? RTLIB::UO_F32 : RTLIB::UO_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4716 | switch (cast<CondCodeSDNode>(CC)->get()) { |
| 4717 | case ISD::SETONE: |
| 4718 | // SETONE = SETOLT | SETOGT |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4719 | LC1 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4720 | // Fallthrough |
| 4721 | case ISD::SETUGT: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4722 | LC2 = (VT == MVT::f32) ? RTLIB::OGT_F32 : RTLIB::OGT_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4723 | break; |
| 4724 | case ISD::SETUGE: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4725 | LC2 = (VT == MVT::f32) ? RTLIB::OGE_F32 : RTLIB::OGE_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4726 | break; |
| 4727 | case ISD::SETULT: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4728 | LC2 = (VT == MVT::f32) ? RTLIB::OLT_F32 : RTLIB::OLT_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4729 | break; |
| 4730 | case ISD::SETULE: |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4731 | LC2 = (VT == MVT::f32) ? RTLIB::OLE_F32 : RTLIB::OLE_F64; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4732 | break; |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4733 | case ISD::SETUEQ: |
| 4734 | LC2 = (VT == MVT::f32) ? RTLIB::OEQ_F32 : RTLIB::OEQ_F64; |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4735 | break; |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4736 | default: assert(0 && "Unsupported FP setcc!"); |
| 4737 | } |
| 4738 | } |
Duncan Sands | f951620 | 2008-06-30 10:19:09 +0000 | [diff] [blame] | 4739 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4740 | SDValue Dummy; |
| 4741 | SDValue Ops[2] = { LHS, RHS }; |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4742 | Tmp1 = ExpandLibCall(LC1, DAG.getMergeValues(Ops, 2).getNode(), |
Reid Spencer | b47b25c | 2007-01-03 04:22:32 +0000 | [diff] [blame] | 4743 | false /*sign irrelevant*/, Dummy); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4744 | Tmp2 = DAG.getConstant(0, MVT::i32); |
Evan Cheng | d385fd6 | 2007-01-31 09:29:11 +0000 | [diff] [blame] | 4745 | CC = DAG.getCondCode(TLI.getCmpLibcallCC(LC1)); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 4746 | if (LC2 != RTLIB::UNKNOWN_LIBCALL) { |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4747 | Tmp1 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Tmp1), Tmp1, Tmp2, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4748 | CC); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4749 | LHS = ExpandLibCall(LC2, DAG.getMergeValues(Ops, 2).getNode(), |
Reid Spencer | b47b25c | 2007-01-03 04:22:32 +0000 | [diff] [blame] | 4750 | false /*sign irrelevant*/, Dummy); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4751 | Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHS), LHS, Tmp2, |
Evan Cheng | d385fd6 | 2007-01-31 09:29:11 +0000 | [diff] [blame] | 4752 | DAG.getCondCode(TLI.getCmpLibcallCC(LC2))); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4753 | Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4754 | Tmp2 = SDValue(); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4755 | } |
Evan Cheng | 21cacc4 | 2008-07-07 07:18:09 +0000 | [diff] [blame] | 4756 | LHS = LegalizeOp(Tmp1); |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4757 | RHS = Tmp2; |
| 4758 | return; |
| 4759 | } |
| 4760 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4761 | SDValue LHSLo, LHSHi, RHSLo, RHSHi; |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4762 | ExpandOp(LHS, LHSLo, LHSHi); |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4763 | ExpandOp(RHS, RHSLo, RHSHi); |
| 4764 | ISD::CondCode CCCode = cast<CondCodeSDNode>(CC)->get(); |
| 4765 | |
| 4766 | if (VT==MVT::ppcf128) { |
| 4767 | // FIXME: This generated code sucks. We want to generate |
Dale Johannesen | e2f2083 | 2008-09-12 00:30:56 +0000 | [diff] [blame] | 4768 | // FCMPU crN, hi1, hi2 |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4769 | // BNE crN, L: |
Dale Johannesen | e2f2083 | 2008-09-12 00:30:56 +0000 | [diff] [blame] | 4770 | // FCMPU crN, lo1, lo2 |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4771 | // The following can be improved, but not that much. |
Dale Johannesen | e2f2083 | 2008-09-12 00:30:56 +0000 | [diff] [blame] | 4772 | Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, |
| 4773 | ISD::SETOEQ); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4774 | Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, CCCode); |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4775 | Tmp3 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); |
Dale Johannesen | e2f2083 | 2008-09-12 00:30:56 +0000 | [diff] [blame] | 4776 | Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, |
| 4777 | ISD::SETUNE); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4778 | Tmp2 = DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, CCCode); |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4779 | Tmp1 = DAG.getNode(ISD::AND, Tmp1.getValueType(), Tmp1, Tmp2); |
| 4780 | Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp3); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4781 | Tmp2 = SDValue(); |
Dale Johannesen | 638ccd5 | 2007-10-06 01:24:11 +0000 | [diff] [blame] | 4782 | break; |
| 4783 | } |
| 4784 | |
| 4785 | switch (CCCode) { |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4786 | case ISD::SETEQ: |
| 4787 | case ISD::SETNE: |
| 4788 | if (RHSLo == RHSHi) |
| 4789 | if (ConstantSDNode *RHSCST = dyn_cast<ConstantSDNode>(RHSLo)) |
| 4790 | if (RHSCST->isAllOnesValue()) { |
| 4791 | // Comparison to -1. |
| 4792 | Tmp1 = DAG.getNode(ISD::AND, LHSLo.getValueType(), LHSLo, LHSHi); |
| 4793 | Tmp2 = RHSLo; |
| 4794 | break; |
| 4795 | } |
| 4796 | |
| 4797 | Tmp1 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSLo, RHSLo); |
| 4798 | Tmp2 = DAG.getNode(ISD::XOR, LHSLo.getValueType(), LHSHi, RHSHi); |
| 4799 | Tmp1 = DAG.getNode(ISD::OR, Tmp1.getValueType(), Tmp1, Tmp2); |
| 4800 | Tmp2 = DAG.getConstant(0, Tmp1.getValueType()); |
| 4801 | break; |
| 4802 | default: |
| 4803 | // If this is a comparison of the sign bit, just look at the top part. |
| 4804 | // X > -1, x < 0 |
| 4805 | if (ConstantSDNode *CST = dyn_cast<ConstantSDNode>(RHS)) |
| 4806 | if ((cast<CondCodeSDNode>(CC)->get() == ISD::SETLT && |
Dan Gohman | 002e5d0 | 2008-03-13 22:13:53 +0000 | [diff] [blame] | 4807 | CST->isNullValue()) || // X < 0 |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4808 | (cast<CondCodeSDNode>(CC)->get() == ISD::SETGT && |
| 4809 | CST->isAllOnesValue())) { // X > -1 |
| 4810 | Tmp1 = LHSHi; |
| 4811 | Tmp2 = RHSHi; |
| 4812 | break; |
| 4813 | } |
| 4814 | |
| 4815 | // FIXME: This generated code sucks. |
| 4816 | ISD::CondCode LowCC; |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4817 | switch (CCCode) { |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4818 | default: assert(0 && "Unknown integer setcc!"); |
| 4819 | case ISD::SETLT: |
| 4820 | case ISD::SETULT: LowCC = ISD::SETULT; break; |
| 4821 | case ISD::SETGT: |
| 4822 | case ISD::SETUGT: LowCC = ISD::SETUGT; break; |
| 4823 | case ISD::SETLE: |
| 4824 | case ISD::SETULE: LowCC = ISD::SETULE; break; |
| 4825 | case ISD::SETGE: |
| 4826 | case ISD::SETUGE: LowCC = ISD::SETUGE; break; |
| 4827 | } |
| 4828 | |
| 4829 | // Tmp1 = lo(op1) < lo(op2) // Always unsigned comparison |
| 4830 | // Tmp2 = hi(op1) < hi(op2) // Signedness depends on operands |
| 4831 | // dest = hi(op1) == hi(op2) ? Tmp1 : Tmp2; |
| 4832 | |
| 4833 | // NOTE: on targets without efficient SELECT of bools, we can always use |
| 4834 | // this identity: (B1 ? B2 : B3) --> (B1 & B2)|(!B1&B3) |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4835 | TargetLowering::DAGCombinerInfo DagCombineInfo(DAG, false, true, NULL); |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4836 | Tmp1 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4837 | LowCC, false, DagCombineInfo); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4838 | if (!Tmp1.getNode()) |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4839 | Tmp1 = DAG.getSetCC(TLI.getSetCCResultType(LHSLo), LHSLo, RHSLo, LowCC); |
| 4840 | Tmp2 = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4841 | CCCode, false, DagCombineInfo); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4842 | if (!Tmp2.getNode()) |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4843 | Tmp2 = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(LHSHi), LHSHi, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4844 | RHSHi,CC); |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4845 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4846 | ConstantSDNode *Tmp1C = dyn_cast<ConstantSDNode>(Tmp1.getNode()); |
| 4847 | ConstantSDNode *Tmp2C = dyn_cast<ConstantSDNode>(Tmp2.getNode()); |
Dan Gohman | 002e5d0 | 2008-03-13 22:13:53 +0000 | [diff] [blame] | 4848 | if ((Tmp1C && Tmp1C->isNullValue()) || |
| 4849 | (Tmp2C && Tmp2C->isNullValue() && |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4850 | (CCCode == ISD::SETLE || CCCode == ISD::SETGE || |
| 4851 | CCCode == ISD::SETUGE || CCCode == ISD::SETULE)) || |
Dan Gohman | 002e5d0 | 2008-03-13 22:13:53 +0000 | [diff] [blame] | 4852 | (Tmp2C && Tmp2C->getAPIntValue() == 1 && |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4853 | (CCCode == ISD::SETLT || CCCode == ISD::SETGT || |
| 4854 | CCCode == ISD::SETUGT || CCCode == ISD::SETULT))) { |
| 4855 | // low part is known false, returns high part. |
| 4856 | // For LE / GE, if high part is known false, ignore the low part. |
| 4857 | // For LT / GT, if high part is known true, ignore the low part. |
| 4858 | Tmp1 = Tmp2; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4859 | Tmp2 = SDValue(); |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4860 | } else { |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4861 | Result = TLI.SimplifySetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4862 | ISD::SETEQ, false, DagCombineInfo); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 4863 | if (!Result.getNode()) |
Scott Michel | 5b8f82e | 2008-03-10 15:42:14 +0000 | [diff] [blame] | 4864 | Result=DAG.getSetCC(TLI.getSetCCResultType(LHSHi), LHSHi, RHSHi, |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 4865 | ISD::SETEQ); |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4866 | Result = LegalizeOp(DAG.getNode(ISD::SELECT, Tmp1.getValueType(), |
| 4867 | Result, Tmp1, Tmp2)); |
| 4868 | Tmp1 = Result; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4869 | Tmp2 = SDValue(); |
Evan Cheng | 2e67781 | 2007-02-08 22:16:19 +0000 | [diff] [blame] | 4870 | } |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4871 | } |
| 4872 | } |
Evan Cheng | 2b49c50 | 2006-12-15 02:59:56 +0000 | [diff] [blame] | 4873 | } |
Nate Begeman | 750ac1b | 2006-02-01 07:19:44 +0000 | [diff] [blame] | 4874 | LHS = Tmp1; |
| 4875 | RHS = Tmp2; |
| 4876 | } |
| 4877 | |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4878 | /// EmitStackConvert - Emit a store/load combination to the stack. This stores |
| 4879 | /// SrcOp to a stack slot of type SlotVT, truncating it if needed. It then does |
| 4880 | /// a load from the stack slot to DestVT, extending it if needed. |
| 4881 | /// The resultant code need not be legal. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4882 | SDValue SelectionDAGLegalize::EmitStackConvert(SDValue SrcOp, |
| 4883 | MVT SlotVT, |
| 4884 | MVT DestVT) { |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4885 | // Create the stack frame object. |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4886 | unsigned SrcAlign = TLI.getTargetData()->getPrefTypeAlignment( |
| 4887 | SrcOp.getValueType().getTypeForMVT()); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4888 | SDValue FIPtr = DAG.CreateStackTemporary(SlotVT, SrcAlign); |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4889 | |
Dan Gohman | bbbbb9c | 2008-02-11 18:58:42 +0000 | [diff] [blame] | 4890 | FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(FIPtr); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4891 | int SPFI = StackPtrFI->getIndex(); |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4892 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4893 | unsigned SrcSize = SrcOp.getValueType().getSizeInBits(); |
| 4894 | unsigned SlotSize = SlotVT.getSizeInBits(); |
| 4895 | unsigned DestSize = DestVT.getSizeInBits(); |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4896 | unsigned DestAlign = TLI.getTargetData()->getPrefTypeAlignment( |
| 4897 | DestVT.getTypeForMVT()); |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4898 | |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4899 | // Emit a store to the stack slot. Use a truncstore if the input value is |
| 4900 | // later than DestVT. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4901 | SDValue Store; |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4902 | |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4903 | if (SrcSize > SlotSize) |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4904 | Store = DAG.getTruncStore(DAG.getEntryNode(), SrcOp, FIPtr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 4905 | PseudoSourceValue::getFixedStack(SPFI), 0, |
| 4906 | SlotVT, false, SrcAlign); |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4907 | else { |
| 4908 | assert(SrcSize == SlotSize && "Invalid store"); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4909 | Store = DAG.getStore(DAG.getEntryNode(), SrcOp, FIPtr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 4910 | PseudoSourceValue::getFixedStack(SPFI), 0, |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4911 | false, SrcAlign); |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4912 | } |
| 4913 | |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4914 | // Result is a load from the stack slot. |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4915 | if (SlotSize == DestSize) |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4916 | return DAG.getLoad(DestVT, Store, FIPtr, NULL, 0, false, DestAlign); |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 4917 | |
| 4918 | assert(SlotSize < DestSize && "Unknown extension!"); |
Mon P Wang | 364d73d | 2008-07-05 20:40:31 +0000 | [diff] [blame] | 4919 | return DAG.getExtLoad(ISD::EXTLOAD, DestVT, Store, FIPtr, NULL, 0, SlotVT, |
| 4920 | false, DestAlign); |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 4921 | } |
| 4922 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4923 | SDValue SelectionDAGLegalize::ExpandSCALAR_TO_VECTOR(SDNode *Node) { |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 4924 | // Create a vector sized/aligned stack slot, store the value to element #0, |
| 4925 | // then load the whole vector back out. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4926 | SDValue StackPtr = DAG.CreateStackTemporary(Node->getValueType(0)); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4927 | |
Dan Gohman | bbbbb9c | 2008-02-11 18:58:42 +0000 | [diff] [blame] | 4928 | FrameIndexSDNode *StackPtrFI = cast<FrameIndexSDNode>(StackPtr); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4929 | int SPFI = StackPtrFI->getIndex(); |
| 4930 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4931 | SDValue Ch = DAG.getStore(DAG.getEntryNode(), Node->getOperand(0), StackPtr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 4932 | PseudoSourceValue::getFixedStack(SPFI), 0); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 4933 | return DAG.getLoad(Node->getValueType(0), Ch, StackPtr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 4934 | PseudoSourceValue::getFixedStack(SPFI), 0); |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 4935 | } |
| 4936 | |
| 4937 | |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 4938 | /// ExpandBUILD_VECTOR - Expand a BUILD_VECTOR node on targets that don't |
Dan Gohman | 07a9676 | 2007-07-16 14:29:03 +0000 | [diff] [blame] | 4939 | /// support the operation, but do support the resultant vector type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4940 | SDValue SelectionDAGLegalize::ExpandBUILD_VECTOR(SDNode *Node) { |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 4941 | |
| 4942 | // If the only non-undef value is the low element, turn this into a |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 4943 | // SCALAR_TO_VECTOR node. If this is { X, X, X, X }, determine X. |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 4944 | unsigned NumElems = Node->getNumOperands(); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 4945 | bool isOnlyLowElement = true; |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4946 | SDValue SplatValue = Node->getOperand(0); |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 4947 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4948 | // FIXME: it would be far nicer to change this into map<SDValue,uint64_t> |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 4949 | // and use a bitmask instead of a list of elements. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4950 | std::map<SDValue, std::vector<unsigned> > Values; |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 4951 | Values[SplatValue].push_back(0); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4952 | bool isConstant = true; |
| 4953 | if (!isa<ConstantFPSDNode>(SplatValue) && !isa<ConstantSDNode>(SplatValue) && |
| 4954 | SplatValue.getOpcode() != ISD::UNDEF) |
| 4955 | isConstant = false; |
| 4956 | |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 4957 | for (unsigned i = 1; i < NumElems; ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4958 | SDValue V = Node->getOperand(i); |
Chris Lattner | 89a1b38 | 2006-04-19 23:17:50 +0000 | [diff] [blame] | 4959 | Values[V].push_back(i); |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 4960 | if (V.getOpcode() != ISD::UNDEF) |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 4961 | isOnlyLowElement = false; |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 4962 | if (SplatValue != V) |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 4963 | SplatValue = SDValue(0,0); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4964 | |
| 4965 | // If this isn't a constant element or an undef, we can't use a constant |
| 4966 | // pool load. |
| 4967 | if (!isa<ConstantFPSDNode>(V) && !isa<ConstantSDNode>(V) && |
| 4968 | V.getOpcode() != ISD::UNDEF) |
| 4969 | isConstant = false; |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 4970 | } |
| 4971 | |
| 4972 | if (isOnlyLowElement) { |
| 4973 | // If the low element is an undef too, then this whole things is an undef. |
| 4974 | if (Node->getOperand(0).getOpcode() == ISD::UNDEF) |
| 4975 | return DAG.getNode(ISD::UNDEF, Node->getValueType(0)); |
| 4976 | // Otherwise, turn this into a scalar_to_vector node. |
| 4977 | return DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), |
| 4978 | Node->getOperand(0)); |
| 4979 | } |
| 4980 | |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4981 | // If all elements are constants, create a load from the constant pool. |
| 4982 | if (isConstant) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4983 | MVT VT = Node->getValueType(0); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4984 | std::vector<Constant*> CV; |
| 4985 | for (unsigned i = 0, e = NumElems; i != e; ++i) { |
| 4986 | if (ConstantFPSDNode *V = |
| 4987 | dyn_cast<ConstantFPSDNode>(Node->getOperand(i))) { |
Dan Gohman | 4fbd796 | 2008-09-12 18:08:03 +0000 | [diff] [blame] | 4988 | CV.push_back(const_cast<ConstantFP *>(V->getConstantFPValue())); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4989 | } else if (ConstantSDNode *V = |
Chris Lattner | 02a260a | 2008-04-20 00:41:09 +0000 | [diff] [blame] | 4990 | dyn_cast<ConstantSDNode>(Node->getOperand(i))) { |
Dan Gohman | 4fbd796 | 2008-09-12 18:08:03 +0000 | [diff] [blame] | 4991 | CV.push_back(const_cast<ConstantInt *>(V->getConstantIntValue())); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4992 | } else { |
| 4993 | assert(Node->getOperand(i).getOpcode() == ISD::UNDEF); |
Chris Lattner | 02a260a | 2008-04-20 00:41:09 +0000 | [diff] [blame] | 4994 | const Type *OpNTy = |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 4995 | Node->getOperand(0).getValueType().getTypeForMVT(); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 4996 | CV.push_back(UndefValue::get(OpNTy)); |
| 4997 | } |
| 4998 | } |
Reid Spencer | 9d6565a | 2007-02-15 02:26:10 +0000 | [diff] [blame] | 4999 | Constant *CP = ConstantVector::get(CV); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5000 | SDValue CPIdx = DAG.getConstantPool(CP, TLI.getPointerTy()); |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5001 | unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 5002 | return DAG.getLoad(VT, DAG.getEntryNode(), CPIdx, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5003 | PseudoSourceValue::getConstantPool(), 0, |
| 5004 | false, Alignment); |
Chris Lattner | 2eb8653 | 2006-03-24 07:29:17 +0000 | [diff] [blame] | 5005 | } |
| 5006 | |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5007 | if (SplatValue.getNode()) { // Splat of one value? |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 5008 | // Build the shuffle constant vector: <0, 0, 0, 0> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5009 | MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5010 | SDValue Zero = DAG.getConstant(0, MaskVT.getVectorElementType()); |
| 5011 | std::vector<SDValue> ZeroVec(NumElems, Zero); |
| 5012 | SDValue SplatMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 5013 | &ZeroVec[0], ZeroVec.size()); |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 5014 | |
| 5015 | // If the target supports VECTOR_SHUFFLE and this shuffle mask, use it. |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 5016 | if (isShuffleLegal(Node->getValueType(0), SplatMask)) { |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 5017 | // Get the splatted value into the low element of a vector register. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5018 | SDValue LowValVec = |
Chris Lattner | 87100e0 | 2006-03-20 01:52:29 +0000 | [diff] [blame] | 5019 | DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), SplatValue); |
| 5020 | |
| 5021 | // Return shuffle(LowValVec, undef, <0,0,0,0>) |
| 5022 | return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), LowValVec, |
| 5023 | DAG.getNode(ISD::UNDEF, Node->getValueType(0)), |
| 5024 | SplatMask); |
| 5025 | } |
| 5026 | } |
| 5027 | |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 5028 | // If there are only two unique elements, we may be able to turn this into a |
| 5029 | // vector shuffle. |
| 5030 | if (Values.size() == 2) { |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5031 | // Get the two values in deterministic order. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5032 | SDValue Val1 = Node->getOperand(1); |
| 5033 | SDValue Val2; |
| 5034 | std::map<SDValue, std::vector<unsigned> >::iterator MI = Values.begin(); |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5035 | if (MI->first != Val1) |
| 5036 | Val2 = MI->first; |
| 5037 | else |
| 5038 | Val2 = (++MI)->first; |
| 5039 | |
| 5040 | // If Val1 is an undef, make sure end ends up as Val2, to ensure that our |
| 5041 | // vector shuffle has the undef vector on the RHS. |
| 5042 | if (Val1.getOpcode() == ISD::UNDEF) |
| 5043 | std::swap(Val1, Val2); |
| 5044 | |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 5045 | // Build the shuffle constant vector: e.g. <0, 4, 0, 4> |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5046 | MVT MaskVT = MVT::getIntVectorWithNumElements(NumElems); |
| 5047 | MVT MaskEltVT = MaskVT.getVectorElementType(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5048 | std::vector<SDValue> MaskVec(NumElems); |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5049 | |
| 5050 | // Set elements of the shuffle mask for Val1. |
| 5051 | std::vector<unsigned> &Val1Elts = Values[Val1]; |
| 5052 | for (unsigned i = 0, e = Val1Elts.size(); i != e; ++i) |
| 5053 | MaskVec[Val1Elts[i]] = DAG.getConstant(0, MaskEltVT); |
| 5054 | |
| 5055 | // Set elements of the shuffle mask for Val2. |
| 5056 | std::vector<unsigned> &Val2Elts = Values[Val2]; |
| 5057 | for (unsigned i = 0, e = Val2Elts.size(); i != e; ++i) |
| 5058 | if (Val2.getOpcode() != ISD::UNDEF) |
| 5059 | MaskVec[Val2Elts[i]] = DAG.getConstant(NumElems, MaskEltVT); |
| 5060 | else |
| 5061 | MaskVec[Val2Elts[i]] = DAG.getNode(ISD::UNDEF, MaskEltVT); |
| 5062 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5063 | SDValue ShuffleMask = DAG.getNode(ISD::BUILD_VECTOR, MaskVT, |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 5064 | &MaskVec[0], MaskVec.size()); |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 5065 | |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5066 | // If the target supports SCALAR_TO_VECTOR and this shuffle mask, use it. |
Chris Lattner | 4352cc9 | 2006-04-04 17:23:26 +0000 | [diff] [blame] | 5067 | if (TLI.isOperationLegal(ISD::SCALAR_TO_VECTOR, Node->getValueType(0)) && |
| 5068 | isShuffleLegal(Node->getValueType(0), ShuffleMask)) { |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5069 | Val1 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val1); |
| 5070 | Val2 = DAG.getNode(ISD::SCALAR_TO_VECTOR, Node->getValueType(0), Val2); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5071 | SDValue Ops[] = { Val1, Val2, ShuffleMask }; |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 5072 | |
| 5073 | // Return shuffle(LoValVec, HiValVec, <0,1,0,1>) |
Chris Lattner | f9d95c8 | 2008-03-09 00:29:42 +0000 | [diff] [blame] | 5074 | return DAG.getNode(ISD::VECTOR_SHUFFLE, Node->getValueType(0), Ops, 3); |
Evan Cheng | 033e681 | 2006-03-24 01:17:21 +0000 | [diff] [blame] | 5075 | } |
| 5076 | } |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5077 | |
| 5078 | // Otherwise, we can't handle this case efficiently. Allocate a sufficiently |
| 5079 | // aligned object on the stack, store each element into it, then load |
| 5080 | // the result as a vector. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5081 | MVT VT = Node->getValueType(0); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5082 | // Create the stack frame object. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5083 | SDValue FIPtr = DAG.CreateStackTemporary(VT); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5084 | |
| 5085 | // Emit a store of each element to the stack slot. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5086 | SmallVector<SDValue, 8> Stores; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5087 | unsigned TypeByteSize = Node->getOperand(0).getValueType().getSizeInBits()/8; |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5088 | // Store (in the right endianness) the elements to memory. |
| 5089 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { |
| 5090 | // Ignore undef elements. |
| 5091 | if (Node->getOperand(i).getOpcode() == ISD::UNDEF) continue; |
| 5092 | |
Chris Lattner | 841c882 | 2006-03-22 01:46:54 +0000 | [diff] [blame] | 5093 | unsigned Offset = TypeByteSize*i; |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5094 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5095 | SDValue Idx = DAG.getConstant(Offset, FIPtr.getValueType()); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5096 | Idx = DAG.getNode(ISD::ADD, FIPtr.getValueType(), FIPtr, Idx); |
| 5097 | |
Evan Cheng | 786225a | 2006-10-05 23:01:46 +0000 | [diff] [blame] | 5098 | Stores.push_back(DAG.getStore(DAG.getEntryNode(), Node->getOperand(i), Idx, |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 5099 | NULL, 0)); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5100 | } |
| 5101 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5102 | SDValue StoreChain; |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5103 | if (!Stores.empty()) // Not all undef elements? |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 5104 | StoreChain = DAG.getNode(ISD::TokenFactor, MVT::Other, |
| 5105 | &Stores[0], Stores.size()); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5106 | else |
| 5107 | StoreChain = DAG.getEntryNode(); |
| 5108 | |
| 5109 | // Result is a load from the stack slot. |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 5110 | return DAG.getLoad(VT, StoreChain, FIPtr, NULL, 0); |
Chris Lattner | ce87215 | 2006-03-19 06:31:19 +0000 | [diff] [blame] | 5111 | } |
| 5112 | |
Chris Lattner | 5b359c6 | 2005-04-02 04:00:59 +0000 | [diff] [blame] | 5113 | void SelectionDAGLegalize::ExpandShiftParts(unsigned NodeOp, |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5114 | SDValue Op, SDValue Amt, |
| 5115 | SDValue &Lo, SDValue &Hi) { |
Chris Lattner | 5b359c6 | 2005-04-02 04:00:59 +0000 | [diff] [blame] | 5116 | // Expand the subcomponents. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5117 | SDValue LHSL, LHSH; |
Chris Lattner | 5b359c6 | 2005-04-02 04:00:59 +0000 | [diff] [blame] | 5118 | ExpandOp(Op, LHSL, LHSH); |
| 5119 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5120 | SDValue Ops[] = { LHSL, LHSH, Amt }; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5121 | MVT VT = LHSL.getValueType(); |
Chris Lattner | f9f37fc | 2006-08-14 23:53:35 +0000 | [diff] [blame] | 5122 | Lo = DAG.getNode(NodeOp, DAG.getNodeValueTypes(VT, VT), 2, Ops, 3); |
Chris Lattner | 5b359c6 | 2005-04-02 04:00:59 +0000 | [diff] [blame] | 5123 | Hi = Lo.getValue(1); |
| 5124 | } |
| 5125 | |
| 5126 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 5127 | /// ExpandShift - Try to find a clever way to expand this shift operation out to |
| 5128 | /// smaller elements. If we can't find a way that is more efficient than a |
| 5129 | /// libcall on this target, return false. Otherwise, return true with the |
| 5130 | /// low-parts expanded into Lo and Hi. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5131 | bool SelectionDAGLegalize::ExpandShift(unsigned Opc, SDValue Op,SDValue Amt, |
| 5132 | SDValue &Lo, SDValue &Hi) { |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 5133 | assert((Opc == ISD::SHL || Opc == ISD::SRA || Opc == ISD::SRL) && |
| 5134 | "This is not a shift!"); |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5135 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5136 | MVT NVT = TLI.getTypeToTransformTo(Op.getValueType()); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5137 | SDValue ShAmt = LegalizeOp(Amt); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5138 | MVT ShTy = ShAmt.getValueType(); |
| 5139 | unsigned ShBits = ShTy.getSizeInBits(); |
| 5140 | unsigned VTBits = Op.getValueType().getSizeInBits(); |
| 5141 | unsigned NVTBits = NVT.getSizeInBits(); |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5142 | |
Chris Lattner | 7a3c855 | 2007-10-14 20:35:12 +0000 | [diff] [blame] | 5143 | // Handle the case when Amt is an immediate. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5144 | if (ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Amt.getNode())) { |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 5145 | unsigned Cst = CN->getZExtValue(); |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5146 | // Expand the incoming operand to be shifted, so that we have its parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5147 | SDValue InL, InH; |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5148 | ExpandOp(Op, InL, InH); |
| 5149 | switch(Opc) { |
| 5150 | case ISD::SHL: |
| 5151 | if (Cst > VTBits) { |
| 5152 | Lo = DAG.getConstant(0, NVT); |
| 5153 | Hi = DAG.getConstant(0, NVT); |
| 5154 | } else if (Cst > NVTBits) { |
| 5155 | Lo = DAG.getConstant(0, NVT); |
| 5156 | Hi = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst-NVTBits,ShTy)); |
Chris Lattner | ee27f57 | 2005-04-11 20:08:52 +0000 | [diff] [blame] | 5157 | } else if (Cst == NVTBits) { |
| 5158 | Lo = DAG.getConstant(0, NVT); |
| 5159 | Hi = InL; |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5160 | } else { |
| 5161 | Lo = DAG.getNode(ISD::SHL, NVT, InL, DAG.getConstant(Cst, ShTy)); |
| 5162 | Hi = DAG.getNode(ISD::OR, NVT, |
| 5163 | DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(Cst, ShTy)), |
| 5164 | DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(NVTBits-Cst, ShTy))); |
| 5165 | } |
| 5166 | return true; |
| 5167 | case ISD::SRL: |
| 5168 | if (Cst > VTBits) { |
| 5169 | Lo = DAG.getConstant(0, NVT); |
| 5170 | Hi = DAG.getConstant(0, NVT); |
| 5171 | } else if (Cst > NVTBits) { |
| 5172 | Lo = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst-NVTBits,ShTy)); |
| 5173 | Hi = DAG.getConstant(0, NVT); |
Chris Lattner | ee27f57 | 2005-04-11 20:08:52 +0000 | [diff] [blame] | 5174 | } else if (Cst == NVTBits) { |
| 5175 | Lo = InH; |
| 5176 | Hi = DAG.getConstant(0, NVT); |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5177 | } else { |
| 5178 | Lo = DAG.getNode(ISD::OR, NVT, |
| 5179 | DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), |
| 5180 | DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); |
| 5181 | Hi = DAG.getNode(ISD::SRL, NVT, InH, DAG.getConstant(Cst, ShTy)); |
| 5182 | } |
| 5183 | return true; |
| 5184 | case ISD::SRA: |
| 5185 | if (Cst > VTBits) { |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5186 | Hi = Lo = DAG.getNode(ISD::SRA, NVT, InH, |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5187 | DAG.getConstant(NVTBits-1, ShTy)); |
| 5188 | } else if (Cst > NVTBits) { |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5189 | Lo = DAG.getNode(ISD::SRA, NVT, InH, |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5190 | DAG.getConstant(Cst-NVTBits, ShTy)); |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5191 | Hi = DAG.getNode(ISD::SRA, NVT, InH, |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5192 | DAG.getConstant(NVTBits-1, ShTy)); |
Chris Lattner | ee27f57 | 2005-04-11 20:08:52 +0000 | [diff] [blame] | 5193 | } else if (Cst == NVTBits) { |
| 5194 | Lo = InH; |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5195 | Hi = DAG.getNode(ISD::SRA, NVT, InH, |
Chris Lattner | ee27f57 | 2005-04-11 20:08:52 +0000 | [diff] [blame] | 5196 | DAG.getConstant(NVTBits-1, ShTy)); |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5197 | } else { |
| 5198 | Lo = DAG.getNode(ISD::OR, NVT, |
| 5199 | DAG.getNode(ISD::SRL, NVT, InL, DAG.getConstant(Cst, ShTy)), |
| 5200 | DAG.getNode(ISD::SHL, NVT, InH, DAG.getConstant(NVTBits-Cst, ShTy))); |
| 5201 | Hi = DAG.getNode(ISD::SRA, NVT, InH, DAG.getConstant(Cst, ShTy)); |
| 5202 | } |
| 5203 | return true; |
| 5204 | } |
| 5205 | } |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5206 | |
| 5207 | // Okay, the shift amount isn't constant. However, if we can tell that it is |
| 5208 | // >= 32 or < 32, we can still simplify it, without knowing the actual value. |
Dan Gohman | 91dc17b | 2008-02-20 16:57:27 +0000 | [diff] [blame] | 5209 | APInt Mask = APInt::getHighBitsSet(ShBits, ShBits - Log2_32(NVTBits)); |
| 5210 | APInt KnownZero, KnownOne; |
Dan Gohman | ea859be | 2007-06-22 14:59:07 +0000 | [diff] [blame] | 5211 | DAG.ComputeMaskedBits(Amt, Mask, KnownZero, KnownOne); |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5212 | |
Dan Gohman | 9e255b7 | 2008-02-22 01:12:31 +0000 | [diff] [blame] | 5213 | // If we know that if any of the high bits of the shift amount are one, then |
| 5214 | // we can do this as a couple of simple shifts. |
Dan Gohman | 91dc17b | 2008-02-20 16:57:27 +0000 | [diff] [blame] | 5215 | if (KnownOne.intersects(Mask)) { |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5216 | // Mask out the high bit, which we know is set. |
| 5217 | Amt = DAG.getNode(ISD::AND, Amt.getValueType(), Amt, |
Dan Gohman | 91dc17b | 2008-02-20 16:57:27 +0000 | [diff] [blame] | 5218 | DAG.getConstant(~Mask, Amt.getValueType())); |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5219 | |
| 5220 | // Expand the incoming operand to be shifted, so that we have its parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5221 | SDValue InL, InH; |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5222 | ExpandOp(Op, InL, InH); |
| 5223 | switch(Opc) { |
| 5224 | case ISD::SHL: |
| 5225 | Lo = DAG.getConstant(0, NVT); // Low part is zero. |
| 5226 | Hi = DAG.getNode(ISD::SHL, NVT, InL, Amt); // High part from Lo part. |
| 5227 | return true; |
| 5228 | case ISD::SRL: |
| 5229 | Hi = DAG.getConstant(0, NVT); // Hi part is zero. |
| 5230 | Lo = DAG.getNode(ISD::SRL, NVT, InH, Amt); // Lo part from Hi part. |
| 5231 | return true; |
| 5232 | case ISD::SRA: |
| 5233 | Hi = DAG.getNode(ISD::SRA, NVT, InH, // Sign extend high part. |
| 5234 | DAG.getConstant(NVTBits-1, Amt.getValueType())); |
| 5235 | Lo = DAG.getNode(ISD::SRA, NVT, InH, Amt); // Lo part from Hi part. |
| 5236 | return true; |
| 5237 | } |
| 5238 | } |
| 5239 | |
Dan Gohman | 9e255b7 | 2008-02-22 01:12:31 +0000 | [diff] [blame] | 5240 | // If we know that the high bits of the shift amount are all zero, then we can |
| 5241 | // do this as a couple of simple shifts. |
| 5242 | if ((KnownZero & Mask) == Mask) { |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5243 | // Compute 32-amt. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5244 | SDValue Amt2 = DAG.getNode(ISD::SUB, Amt.getValueType(), |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5245 | DAG.getConstant(NVTBits, Amt.getValueType()), |
| 5246 | Amt); |
| 5247 | |
| 5248 | // Expand the incoming operand to be shifted, so that we have its parts |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5249 | SDValue InL, InH; |
Chris Lattner | 0ea26ca | 2006-09-20 03:38:48 +0000 | [diff] [blame] | 5250 | ExpandOp(Op, InL, InH); |
| 5251 | switch(Opc) { |
| 5252 | case ISD::SHL: |
| 5253 | Lo = DAG.getNode(ISD::SHL, NVT, InL, Amt); |
| 5254 | Hi = DAG.getNode(ISD::OR, NVT, |
| 5255 | DAG.getNode(ISD::SHL, NVT, InH, Amt), |
| 5256 | DAG.getNode(ISD::SRL, NVT, InL, Amt2)); |
| 5257 | return true; |
| 5258 | case ISD::SRL: |
| 5259 | Hi = DAG.getNode(ISD::SRL, NVT, InH, Amt); |
| 5260 | Lo = DAG.getNode(ISD::OR, NVT, |
| 5261 | DAG.getNode(ISD::SRL, NVT, InL, Amt), |
| 5262 | DAG.getNode(ISD::SHL, NVT, InH, Amt2)); |
| 5263 | return true; |
| 5264 | case ISD::SRA: |
| 5265 | Hi = DAG.getNode(ISD::SRA, NVT, InH, Amt); |
| 5266 | Lo = DAG.getNode(ISD::OR, NVT, |
| 5267 | DAG.getNode(ISD::SRL, NVT, InL, Amt), |
| 5268 | DAG.getNode(ISD::SHL, NVT, InH, Amt2)); |
| 5269 | return true; |
| 5270 | } |
| 5271 | } |
| 5272 | |
Nate Begeman | f1fe32e | 2005-04-06 21:13:14 +0000 | [diff] [blame] | 5273 | return false; |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 5274 | } |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5275 | |
Chris Lattner | 9c32d3b | 2005-01-23 04:42:50 +0000 | [diff] [blame] | 5276 | |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5277 | // ExpandLibCall - Expand a node into a call to a libcall. If the result value |
| 5278 | // does not fit into a register, return the lo part and set the hi part to the |
| 5279 | // by-reg argument. If it does fit into a single register, return the result |
| 5280 | // and leave the Hi part unset. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5281 | SDValue SelectionDAGLegalize::ExpandLibCall(RTLIB::Libcall LC, SDNode *Node, |
| 5282 | bool isSigned, SDValue &Hi) { |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 5283 | assert(!IsLegalizingCall && "Cannot overlap legalization of calls!"); |
| 5284 | // The input chain to this libcall is the entry node of the function. |
| 5285 | // Legalizing the call will automatically add the previous call to the |
| 5286 | // dependence. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5287 | SDValue InChain = DAG.getEntryNode(); |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 5288 | |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5289 | TargetLowering::ArgListTy Args; |
Reid Spencer | 4785781 | 2006-12-31 05:55:36 +0000 | [diff] [blame] | 5290 | TargetLowering::ArgListEntry Entry; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5291 | for (unsigned i = 0, e = Node->getNumOperands(); i != e; ++i) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5292 | MVT ArgVT = Node->getOperand(i).getValueType(); |
| 5293 | const Type *ArgTy = ArgVT.getTypeForMVT(); |
Reid Spencer | 4785781 | 2006-12-31 05:55:36 +0000 | [diff] [blame] | 5294 | Entry.Node = Node->getOperand(i); Entry.Ty = ArgTy; |
Anton Korobeynikov | d0b82b3 | 2007-03-07 16:25:09 +0000 | [diff] [blame] | 5295 | Entry.isSExt = isSigned; |
Duncan Sands | 00fee65 | 2008-02-14 17:28:50 +0000 | [diff] [blame] | 5296 | Entry.isZExt = !isSigned; |
Reid Spencer | 4785781 | 2006-12-31 05:55:36 +0000 | [diff] [blame] | 5297 | Args.push_back(Entry); |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5298 | } |
Bill Wendling | 056292f | 2008-09-16 21:48:12 +0000 | [diff] [blame] | 5299 | SDValue Callee = DAG.getExternalSymbol(TLI.getLibcallName(LC), |
| 5300 | TLI.getPointerTy()); |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5301 | |
Chris Lattner | 0d67f0c | 2005-05-11 19:02:11 +0000 | [diff] [blame] | 5302 | // Splice the libcall in wherever FindInputOutputChains tells us to. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5303 | const Type *RetTy = Node->getValueType(0).getTypeForMVT(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5304 | std::pair<SDValue,SDValue> CallInfo = |
Duncan Sands | 00fee65 | 2008-02-14 17:28:50 +0000 | [diff] [blame] | 5305 | TLI.LowerCallTo(InChain, RetTy, isSigned, !isSigned, false, CallingConv::C, |
| 5306 | false, Callee, Args, DAG); |
Chris Lattner | b9fa3bc | 2005-05-12 04:49:08 +0000 | [diff] [blame] | 5307 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 5308 | // Legalize the call sequence, starting with the chain. This will advance |
| 5309 | // the LastCALLSEQ_END to the legalized version of the CALLSEQ_END node that |
| 5310 | // was added by LowerCallTo (guaranteeing proper serialization of calls). |
| 5311 | LegalizeOp(CallInfo.second); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5312 | SDValue Result; |
Chris Lattner | 0d67f0c | 2005-05-11 19:02:11 +0000 | [diff] [blame] | 5313 | switch (getTypeAction(CallInfo.first.getValueType())) { |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5314 | default: assert(0 && "Unknown thing"); |
| 5315 | case Legal: |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 5316 | Result = CallInfo.first; |
Chris Lattner | 99c25b8 | 2005-09-02 20:26:58 +0000 | [diff] [blame] | 5317 | break; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5318 | case Expand: |
Chris Lattner | 99c25b8 | 2005-09-02 20:26:58 +0000 | [diff] [blame] | 5319 | ExpandOp(CallInfo.first, Result, Hi); |
Chris Lattner | 99c25b8 | 2005-09-02 20:26:58 +0000 | [diff] [blame] | 5320 | break; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5321 | } |
Chris Lattner | 99c25b8 | 2005-09-02 20:26:58 +0000 | [diff] [blame] | 5322 | return Result; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5323 | } |
| 5324 | |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 5325 | /// LegalizeINT_TO_FP - Legalize a [US]INT_TO_FP operation. |
| 5326 | /// |
| 5327 | SDValue SelectionDAGLegalize:: |
| 5328 | LegalizeINT_TO_FP(SDValue Result, bool isSigned, MVT DestTy, SDValue Op) { |
| 5329 | bool isCustom = false; |
| 5330 | SDValue Tmp1; |
| 5331 | switch (getTypeAction(Op.getValueType())) { |
| 5332 | case Legal: |
| 5333 | switch (TLI.getOperationAction(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, |
| 5334 | Op.getValueType())) { |
| 5335 | default: assert(0 && "Unknown operation action!"); |
| 5336 | case TargetLowering::Custom: |
| 5337 | isCustom = true; |
| 5338 | // FALLTHROUGH |
| 5339 | case TargetLowering::Legal: |
| 5340 | Tmp1 = LegalizeOp(Op); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5341 | if (Result.getNode()) |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 5342 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 5343 | else |
| 5344 | Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, |
| 5345 | DestTy, Tmp1); |
| 5346 | if (isCustom) { |
| 5347 | Tmp1 = TLI.LowerOperation(Result, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5348 | if (Tmp1.getNode()) Result = Tmp1; |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 5349 | } |
| 5350 | break; |
| 5351 | case TargetLowering::Expand: |
| 5352 | Result = ExpandLegalINT_TO_FP(isSigned, LegalizeOp(Op), DestTy); |
| 5353 | break; |
| 5354 | case TargetLowering::Promote: |
| 5355 | Result = PromoteLegalINT_TO_FP(LegalizeOp(Op), DestTy, isSigned); |
| 5356 | break; |
| 5357 | } |
| 5358 | break; |
| 5359 | case Expand: |
| 5360 | Result = ExpandIntToFP(isSigned, DestTy, Op); |
| 5361 | break; |
| 5362 | case Promote: |
| 5363 | Tmp1 = PromoteOp(Op); |
| 5364 | if (isSigned) { |
| 5365 | Tmp1 = DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp1.getValueType(), |
| 5366 | Tmp1, DAG.getValueType(Op.getValueType())); |
| 5367 | } else { |
| 5368 | Tmp1 = DAG.getZeroExtendInReg(Tmp1, |
| 5369 | Op.getValueType()); |
| 5370 | } |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5371 | if (Result.getNode()) |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 5372 | Result = DAG.UpdateNodeOperands(Result, Tmp1); |
| 5373 | else |
| 5374 | Result = DAG.getNode(isSigned ? ISD::SINT_TO_FP : ISD::UINT_TO_FP, |
| 5375 | DestTy, Tmp1); |
| 5376 | Result = LegalizeOp(Result); // The 'op' is not necessarily legal! |
| 5377 | break; |
| 5378 | } |
| 5379 | return Result; |
| 5380 | } |
Chris Lattner | 9c32d3b | 2005-01-23 04:42:50 +0000 | [diff] [blame] | 5381 | |
Evan Cheng | 4c6cfad | 2007-04-27 07:33:31 +0000 | [diff] [blame] | 5382 | /// ExpandIntToFP - Expand a [US]INT_TO_FP operation. |
| 5383 | /// |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5384 | SDValue SelectionDAGLegalize:: |
| 5385 | ExpandIntToFP(bool isSigned, MVT DestTy, SDValue Source) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5386 | MVT SourceVT = Source.getValueType(); |
Dan Gohman | 034f60e | 2008-03-11 01:59:03 +0000 | [diff] [blame] | 5387 | bool ExpandSource = getTypeAction(SourceVT) == Expand; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5388 | |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 5389 | // Expand unsupported int-to-fp vector casts by unrolling them. |
| 5390 | if (DestTy.isVector()) { |
| 5391 | if (!ExpandSource) |
| 5392 | return LegalizeOp(UnrollVectorOp(Source)); |
| 5393 | MVT DestEltTy = DestTy.getVectorElementType(); |
| 5394 | if (DestTy.getVectorNumElements() == 1) { |
| 5395 | SDValue Scalar = ScalarizeVectorOp(Source); |
| 5396 | SDValue Result = LegalizeINT_TO_FP(SDValue(), isSigned, |
| 5397 | DestEltTy, Scalar); |
| 5398 | return DAG.getNode(ISD::BUILD_VECTOR, DestTy, Result); |
| 5399 | } |
| 5400 | SDValue Lo, Hi; |
| 5401 | SplitVectorOp(Source, Lo, Hi); |
| 5402 | MVT SplitDestTy = MVT::getVectorVT(DestEltTy, |
| 5403 | DestTy.getVectorNumElements() / 2); |
| 5404 | SDValue LoResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Lo); |
| 5405 | SDValue HiResult = LegalizeINT_TO_FP(SDValue(), isSigned, SplitDestTy, Hi); |
| 5406 | return LegalizeOp(DAG.getNode(ISD::CONCAT_VECTORS, DestTy, LoResult, HiResult)); |
| 5407 | } |
| 5408 | |
Evan Cheng | 9845eb5 | 2008-04-01 02:18:22 +0000 | [diff] [blame] | 5409 | // Special case for i32 source to take advantage of UINTTOFP_I32_F32, etc. |
| 5410 | if (!isSigned && SourceVT != MVT::i32) { |
Dan Gohman | 34bc178 | 2008-03-05 02:07:31 +0000 | [diff] [blame] | 5411 | // The integer value loaded will be incorrectly if the 'sign bit' of the |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5412 | // incoming integer is set. To handle this, we dynamically test to see if |
| 5413 | // it is set, and, if so, add a fudge factor. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5414 | SDValue Hi; |
Dan Gohman | 034f60e | 2008-03-11 01:59:03 +0000 | [diff] [blame] | 5415 | if (ExpandSource) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5416 | SDValue Lo; |
Dan Gohman | 034f60e | 2008-03-11 01:59:03 +0000 | [diff] [blame] | 5417 | ExpandOp(Source, Lo, Hi); |
| 5418 | Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, Lo, Hi); |
| 5419 | } else { |
| 5420 | // The comparison for the sign bit will use the entire operand. |
| 5421 | Hi = Source; |
| 5422 | } |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5423 | |
Chris Lattner | 66de05b | 2005-05-13 04:45:13 +0000 | [diff] [blame] | 5424 | // If this is unsigned, and not supported, first perform the conversion to |
| 5425 | // signed, then adjust the result if the sign bit is set. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5426 | SDValue SignedConv = ExpandIntToFP(true, DestTy, Source); |
Chris Lattner | 66de05b | 2005-05-13 04:45:13 +0000 | [diff] [blame] | 5427 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5428 | SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Hi), Hi, |
Chris Lattner | 7cf7e3f | 2005-08-09 20:20:18 +0000 | [diff] [blame] | 5429 | DAG.getConstant(0, Hi.getValueType()), |
| 5430 | ISD::SETLT); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5431 | SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); |
| 5432 | SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5433 | SignSet, Four, Zero); |
Chris Lattner | 383203b | 2005-05-12 18:52:34 +0000 | [diff] [blame] | 5434 | uint64_t FF = 0x5f800000ULL; |
| 5435 | if (TLI.isLittleEndian()) FF <<= 32; |
Dan Gohman | 34bc178 | 2008-03-05 02:07:31 +0000 | [diff] [blame] | 5436 | static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5437 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5438 | SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5439 | unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5440 | CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); |
Dan Gohman | 87a0f10 | 2008-09-22 22:40:08 +0000 | [diff] [blame^] | 5441 | Alignment = std::min(Alignment, 4u); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5442 | SDValue FudgeInReg; |
Chris Lattner | e9c35e7 | 2005-04-13 05:09:42 +0000 | [diff] [blame] | 5443 | if (DestTy == MVT::f32) |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 5444 | FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5445 | PseudoSourceValue::getConstantPool(), 0, |
| 5446 | false, Alignment); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 5447 | else if (DestTy.bitsGT(MVT::f32)) |
Evan Cheng | 4c6cfad | 2007-04-27 07:33:31 +0000 | [diff] [blame] | 5448 | // FIXME: Avoid the extend by construction the right constantpool? |
Dale Johannesen | 118cd9d | 2007-09-16 16:51:49 +0000 | [diff] [blame] | 5449 | FudgeInReg = DAG.getExtLoad(ISD::EXTLOAD, DestTy, DAG.getEntryNode(), |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 5450 | CPIdx, |
Dan Gohman | 3069b87 | 2008-02-07 18:41:25 +0000 | [diff] [blame] | 5451 | PseudoSourceValue::getConstantPool(), 0, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5452 | MVT::f32, false, Alignment); |
Dale Johannesen | 9e3d3ab | 2007-09-14 22:26:36 +0000 | [diff] [blame] | 5453 | else |
| 5454 | assert(0 && "Unexpected conversion"); |
| 5455 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5456 | MVT SCVT = SignedConv.getValueType(); |
Evan Cheng | 4c6cfad | 2007-04-27 07:33:31 +0000 | [diff] [blame] | 5457 | if (SCVT != DestTy) { |
| 5458 | // Destination type needs to be expanded as well. The FADD now we are |
| 5459 | // constructing will be expanded into a libcall. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5460 | if (SCVT.getSizeInBits() != DestTy.getSizeInBits()) { |
| 5461 | assert(SCVT.getSizeInBits() * 2 == DestTy.getSizeInBits()); |
Dan Gohman | d91446d | 2008-03-05 01:08:17 +0000 | [diff] [blame] | 5462 | SignedConv = DAG.getNode(ISD::BUILD_PAIR, DestTy, |
Evan Cheng | 4c6cfad | 2007-04-27 07:33:31 +0000 | [diff] [blame] | 5463 | SignedConv, SignedConv.getValue(1)); |
| 5464 | } |
| 5465 | SignedConv = DAG.getNode(ISD::BIT_CONVERT, DestTy, SignedConv); |
| 5466 | } |
Chris Lattner | 473a990 | 2005-09-29 06:44:39 +0000 | [diff] [blame] | 5467 | return DAG.getNode(ISD::FADD, DestTy, SignedConv, FudgeInReg); |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5468 | } |
Chris Lattner | 0d67f0c | 2005-05-11 19:02:11 +0000 | [diff] [blame] | 5469 | |
Chris Lattner | a88a260 | 2005-05-14 05:33:54 +0000 | [diff] [blame] | 5470 | // Check to see if the target has a custom way to lower this. If so, use it. |
Dan Gohman | d91446d | 2008-03-05 01:08:17 +0000 | [diff] [blame] | 5471 | switch (TLI.getOperationAction(ISD::SINT_TO_FP, SourceVT)) { |
Chris Lattner | a88a260 | 2005-05-14 05:33:54 +0000 | [diff] [blame] | 5472 | default: assert(0 && "This action not implemented for this operation!"); |
| 5473 | case TargetLowering::Legal: |
| 5474 | case TargetLowering::Expand: |
| 5475 | break; // This case is handled below. |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 5476 | case TargetLowering::Custom: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5477 | SDValue NV = TLI.LowerOperation(DAG.getNode(ISD::SINT_TO_FP, DestTy, |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 5478 | Source), DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5479 | if (NV.getNode()) |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 5480 | return LegalizeOp(NV); |
| 5481 | break; // The target decided this was legal after all |
| 5482 | } |
Chris Lattner | a88a260 | 2005-05-14 05:33:54 +0000 | [diff] [blame] | 5483 | } |
| 5484 | |
Chris Lattner | 13689e2 | 2005-05-12 07:00:44 +0000 | [diff] [blame] | 5485 | // Expand the source, then glue it back together for the call. We must expand |
| 5486 | // the source in case it is shared (this pass of legalize must traverse it). |
Dan Gohman | 034f60e | 2008-03-11 01:59:03 +0000 | [diff] [blame] | 5487 | if (ExpandSource) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5488 | SDValue SrcLo, SrcHi; |
Dan Gohman | 034f60e | 2008-03-11 01:59:03 +0000 | [diff] [blame] | 5489 | ExpandOp(Source, SrcLo, SrcHi); |
| 5490 | Source = DAG.getNode(ISD::BUILD_PAIR, SourceVT, SrcLo, SrcHi); |
| 5491 | } |
Chris Lattner | 13689e2 | 2005-05-12 07:00:44 +0000 | [diff] [blame] | 5492 | |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 5493 | RTLIB::Libcall LC = isSigned ? |
| 5494 | RTLIB::getSINTTOFP(SourceVT, DestTy) : |
| 5495 | RTLIB::getUINTTOFP(SourceVT, DestTy); |
| 5496 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unknown int value type"); |
| 5497 | |
Chris Lattner | 6831a81 | 2006-02-13 09:18:02 +0000 | [diff] [blame] | 5498 | Source = DAG.getNode(ISD::SINT_TO_FP, DestTy, Source); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5499 | SDValue HiPart; |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5500 | SDValue Result = ExpandLibCall(LC, Source.getNode(), isSigned, HiPart); |
| 5501 | if (Result.getValueType() != DestTy && HiPart.getNode()) |
Dan Gohman | a2e9485 | 2008-03-10 23:03:31 +0000 | [diff] [blame] | 5502 | Result = DAG.getNode(ISD::BUILD_PAIR, DestTy, Result, HiPart); |
| 5503 | return Result; |
Chris Lattner | 77e77a6 | 2005-01-21 06:05:23 +0000 | [diff] [blame] | 5504 | } |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 5505 | |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5506 | /// ExpandLegalINT_TO_FP - This function is responsible for legalizing a |
| 5507 | /// INT_TO_FP operation of the specified operand when the target requests that |
| 5508 | /// we expand it. At this point, we know that the result and operand types are |
| 5509 | /// legal for the target. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5510 | SDValue SelectionDAGLegalize::ExpandLegalINT_TO_FP(bool isSigned, |
| 5511 | SDValue Op0, |
| 5512 | MVT DestVT) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5513 | if (Op0.getValueType() == MVT::i32) { |
| 5514 | // simple 32-bit [signed|unsigned] integer to float/double expansion |
| 5515 | |
Chris Lattner | 23594d4 | 2008-01-16 07:03:22 +0000 | [diff] [blame] | 5516 | // Get the stack frame index of a 8 byte buffer. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5517 | SDValue StackSlot = DAG.CreateStackTemporary(MVT::f64); |
Chris Lattner | 23594d4 | 2008-01-16 07:03:22 +0000 | [diff] [blame] | 5518 | |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5519 | // word offset constant for Hi/Lo address computation |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5520 | SDValue WordOff = DAG.getConstant(sizeof(int), TLI.getPointerTy()); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5521 | // set up Hi and Lo (into buffer) address based on endian |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5522 | SDValue Hi = StackSlot; |
| 5523 | SDValue Lo = DAG.getNode(ISD::ADD, TLI.getPointerTy(), StackSlot,WordOff); |
Chris Lattner | 408c428 | 2006-03-23 05:29:04 +0000 | [diff] [blame] | 5524 | if (TLI.isLittleEndian()) |
| 5525 | std::swap(Hi, Lo); |
| 5526 | |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5527 | // if signed map to unsigned space |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5528 | SDValue Op0Mapped; |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5529 | if (isSigned) { |
| 5530 | // constant used to invert sign bit (signed to unsigned mapping) |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5531 | SDValue SignBit = DAG.getConstant(0x80000000u, MVT::i32); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5532 | Op0Mapped = DAG.getNode(ISD::XOR, MVT::i32, Op0, SignBit); |
| 5533 | } else { |
| 5534 | Op0Mapped = Op0; |
| 5535 | } |
| 5536 | // store the lo of the constructed double - based on integer input |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5537 | SDValue Store1 = DAG.getStore(DAG.getEntryNode(), |
Evan Cheng | 8b2794a | 2006-10-13 21:14:26 +0000 | [diff] [blame] | 5538 | Op0Mapped, Lo, NULL, 0); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5539 | // initial hi portion of constructed double |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5540 | SDValue InitialHi = DAG.getConstant(0x43300000u, MVT::i32); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5541 | // store the hi of the constructed double - biased exponent |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5542 | SDValue Store2=DAG.getStore(Store1, InitialHi, Hi, NULL, 0); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5543 | // load the constructed double |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5544 | SDValue Load = DAG.getLoad(MVT::f64, Store2, StackSlot, NULL, 0); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5545 | // FP constant to bias correct the final result |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5546 | SDValue Bias = DAG.getConstantFP(isSigned ? |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5547 | BitsToDouble(0x4330000080000000ULL) |
| 5548 | : BitsToDouble(0x4330000000000000ULL), |
| 5549 | MVT::f64); |
| 5550 | // subtract the bias |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5551 | SDValue Sub = DAG.getNode(ISD::FSUB, MVT::f64, Load, Bias); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5552 | // final result |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5553 | SDValue Result; |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5554 | // handle final rounding |
| 5555 | if (DestVT == MVT::f64) { |
| 5556 | // do nothing |
| 5557 | Result = Sub; |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 5558 | } else if (DestVT.bitsLT(MVT::f64)) { |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 5559 | Result = DAG.getNode(ISD::FP_ROUND, DestVT, Sub, |
| 5560 | DAG.getIntPtrConstant(0)); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 5561 | } else if (DestVT.bitsGT(MVT::f64)) { |
Dale Johannesen | 118cd9d | 2007-09-16 16:51:49 +0000 | [diff] [blame] | 5562 | Result = DAG.getNode(ISD::FP_EXTEND, DestVT, Sub); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5563 | } |
| 5564 | return Result; |
| 5565 | } |
| 5566 | assert(!isSigned && "Legalize cannot Expand SINT_TO_FP for i64 yet"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5567 | SDValue Tmp1 = DAG.getNode(ISD::SINT_TO_FP, DestVT, Op0); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5568 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5569 | SDValue SignSet = DAG.getSetCC(TLI.getSetCCResultType(Op0), Op0, |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5570 | DAG.getConstant(0, Op0.getValueType()), |
| 5571 | ISD::SETLT); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5572 | SDValue Zero = DAG.getIntPtrConstant(0), Four = DAG.getIntPtrConstant(4); |
| 5573 | SDValue CstOffset = DAG.getNode(ISD::SELECT, Zero.getValueType(), |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5574 | SignSet, Four, Zero); |
| 5575 | |
| 5576 | // If the sign bit of the integer is set, the large number will be treated |
| 5577 | // as a negative number. To counteract this, the dynamic code adds an |
| 5578 | // offset depending on the data type. |
| 5579 | uint64_t FF; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5580 | switch (Op0.getValueType().getSimpleVT()) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5581 | default: assert(0 && "Unsupported integer type!"); |
| 5582 | case MVT::i8 : FF = 0x43800000ULL; break; // 2^8 (as a float) |
| 5583 | case MVT::i16: FF = 0x47800000ULL; break; // 2^16 (as a float) |
| 5584 | case MVT::i32: FF = 0x4F800000ULL; break; // 2^32 (as a float) |
| 5585 | case MVT::i64: FF = 0x5F800000ULL; break; // 2^64 (as a float) |
| 5586 | } |
| 5587 | if (TLI.isLittleEndian()) FF <<= 32; |
Reid Spencer | 4785781 | 2006-12-31 05:55:36 +0000 | [diff] [blame] | 5588 | static Constant *FudgeFactor = ConstantInt::get(Type::Int64Ty, FF); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5589 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5590 | SDValue CPIdx = DAG.getConstantPool(FudgeFactor, TLI.getPointerTy()); |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5591 | unsigned Alignment = 1 << cast<ConstantPoolSDNode>(CPIdx)->getAlignment(); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5592 | CPIdx = DAG.getNode(ISD::ADD, TLI.getPointerTy(), CPIdx, CstOffset); |
Dan Gohman | 87a0f10 | 2008-09-22 22:40:08 +0000 | [diff] [blame^] | 5593 | Alignment = std::min(Alignment, 4u); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5594 | SDValue FudgeInReg; |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5595 | if (DestVT == MVT::f32) |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 5596 | FudgeInReg = DAG.getLoad(MVT::f32, DAG.getEntryNode(), CPIdx, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5597 | PseudoSourceValue::getConstantPool(), 0, |
| 5598 | false, Alignment); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5599 | else { |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 5600 | FudgeInReg = |
| 5601 | LegalizeOp(DAG.getExtLoad(ISD::EXTLOAD, DestVT, |
| 5602 | DAG.getEntryNode(), CPIdx, |
Dan Gohman | 3069b87 | 2008-02-07 18:41:25 +0000 | [diff] [blame] | 5603 | PseudoSourceValue::getConstantPool(), 0, |
Dan Gohman | 50284d8 | 2008-09-16 22:05:41 +0000 | [diff] [blame] | 5604 | MVT::f32, false, Alignment)); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5605 | } |
| 5606 | |
| 5607 | return DAG.getNode(ISD::FADD, DestVT, Tmp1, FudgeInReg); |
| 5608 | } |
| 5609 | |
| 5610 | /// PromoteLegalINT_TO_FP - This function is responsible for legalizing a |
| 5611 | /// *INT_TO_FP operation of the specified operand when the target requests that |
| 5612 | /// we promote it. At this point, we know that the result and operand types are |
| 5613 | /// legal for the target, and that there is a legal UINT_TO_FP or SINT_TO_FP |
| 5614 | /// operation that takes a larger input. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5615 | SDValue SelectionDAGLegalize::PromoteLegalINT_TO_FP(SDValue LegalOp, |
| 5616 | MVT DestVT, |
| 5617 | bool isSigned) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5618 | // First step, figure out the appropriate *INT_TO_FP operation to use. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5619 | MVT NewInTy = LegalOp.getValueType(); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5620 | |
| 5621 | unsigned OpToUse = 0; |
| 5622 | |
| 5623 | // Scan for the appropriate larger type to use. |
| 5624 | while (1) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5625 | NewInTy = (MVT::SimpleValueType)(NewInTy.getSimpleVT()+1); |
| 5626 | assert(NewInTy.isInteger() && "Ran out of possibilities!"); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5627 | |
| 5628 | // If the target supports SINT_TO_FP of this type, use it. |
| 5629 | switch (TLI.getOperationAction(ISD::SINT_TO_FP, NewInTy)) { |
| 5630 | default: break; |
| 5631 | case TargetLowering::Legal: |
| 5632 | if (!TLI.isTypeLegal(NewInTy)) |
| 5633 | break; // Can't use this datatype. |
| 5634 | // FALL THROUGH. |
| 5635 | case TargetLowering::Custom: |
| 5636 | OpToUse = ISD::SINT_TO_FP; |
| 5637 | break; |
| 5638 | } |
| 5639 | if (OpToUse) break; |
| 5640 | if (isSigned) continue; |
| 5641 | |
| 5642 | // If the target supports UINT_TO_FP of this type, use it. |
| 5643 | switch (TLI.getOperationAction(ISD::UINT_TO_FP, NewInTy)) { |
| 5644 | default: break; |
| 5645 | case TargetLowering::Legal: |
| 5646 | if (!TLI.isTypeLegal(NewInTy)) |
| 5647 | break; // Can't use this datatype. |
| 5648 | // FALL THROUGH. |
| 5649 | case TargetLowering::Custom: |
| 5650 | OpToUse = ISD::UINT_TO_FP; |
| 5651 | break; |
| 5652 | } |
| 5653 | if (OpToUse) break; |
| 5654 | |
| 5655 | // Otherwise, try a larger type. |
| 5656 | } |
| 5657 | |
| 5658 | // Okay, we found the operation and type to use. Zero extend our input to the |
| 5659 | // desired type then run the operation on it. |
| 5660 | return DAG.getNode(OpToUse, DestVT, |
| 5661 | DAG.getNode(isSigned ? ISD::SIGN_EXTEND : ISD::ZERO_EXTEND, |
| 5662 | NewInTy, LegalOp)); |
| 5663 | } |
| 5664 | |
| 5665 | /// PromoteLegalFP_TO_INT - This function is responsible for legalizing a |
| 5666 | /// FP_TO_*INT operation of the specified operand when the target requests that |
| 5667 | /// we promote it. At this point, we know that the result and operand types are |
| 5668 | /// legal for the target, and that there is a legal FP_TO_UINT or FP_TO_SINT |
| 5669 | /// operation that returns a larger result. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5670 | SDValue SelectionDAGLegalize::PromoteLegalFP_TO_INT(SDValue LegalOp, |
| 5671 | MVT DestVT, |
| 5672 | bool isSigned) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5673 | // First step, figure out the appropriate FP_TO*INT operation to use. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5674 | MVT NewOutTy = DestVT; |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5675 | |
| 5676 | unsigned OpToUse = 0; |
| 5677 | |
| 5678 | // Scan for the appropriate larger type to use. |
| 5679 | while (1) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5680 | NewOutTy = (MVT::SimpleValueType)(NewOutTy.getSimpleVT()+1); |
| 5681 | assert(NewOutTy.isInteger() && "Ran out of possibilities!"); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5682 | |
| 5683 | // If the target supports FP_TO_SINT returning this type, use it. |
| 5684 | switch (TLI.getOperationAction(ISD::FP_TO_SINT, NewOutTy)) { |
| 5685 | default: break; |
| 5686 | case TargetLowering::Legal: |
| 5687 | if (!TLI.isTypeLegal(NewOutTy)) |
| 5688 | break; // Can't use this datatype. |
| 5689 | // FALL THROUGH. |
| 5690 | case TargetLowering::Custom: |
| 5691 | OpToUse = ISD::FP_TO_SINT; |
| 5692 | break; |
| 5693 | } |
| 5694 | if (OpToUse) break; |
| 5695 | |
| 5696 | // If the target supports FP_TO_UINT of this type, use it. |
| 5697 | switch (TLI.getOperationAction(ISD::FP_TO_UINT, NewOutTy)) { |
| 5698 | default: break; |
| 5699 | case TargetLowering::Legal: |
| 5700 | if (!TLI.isTypeLegal(NewOutTy)) |
| 5701 | break; // Can't use this datatype. |
| 5702 | // FALL THROUGH. |
| 5703 | case TargetLowering::Custom: |
| 5704 | OpToUse = ISD::FP_TO_UINT; |
| 5705 | break; |
| 5706 | } |
| 5707 | if (OpToUse) break; |
| 5708 | |
| 5709 | // Otherwise, try a larger type. |
| 5710 | } |
| 5711 | |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5712 | |
| 5713 | // Okay, we found the operation and type to use. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5714 | SDValue Operation = DAG.getNode(OpToUse, NewOutTy, LegalOp); |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 5715 | |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5716 | // If the operation produces an invalid type, it must be custom lowered. Use |
| 5717 | // the target lowering hooks to expand it. Just keep the low part of the |
| 5718 | // expanded operation, we know that we're truncating anyway. |
| 5719 | if (getTypeAction(NewOutTy) == Expand) { |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5720 | Operation = SDValue(TLI.ReplaceNodeResults(Operation.getNode(), DAG), 0); |
| 5721 | assert(Operation.getNode() && "Didn't return anything"); |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5722 | } |
Duncan Sands | 126d907 | 2008-07-04 11:47:58 +0000 | [diff] [blame] | 5723 | |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5724 | // Truncate the result of the extended FP_TO_*INT operation to the desired |
| 5725 | // size. |
| 5726 | return DAG.getNode(ISD::TRUNCATE, DestVT, Operation); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5727 | } |
| 5728 | |
| 5729 | /// ExpandBSWAP - Open code the operations for BSWAP of the specified operation. |
| 5730 | /// |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5731 | SDValue SelectionDAGLegalize::ExpandBSWAP(SDValue Op) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5732 | MVT VT = Op.getValueType(); |
| 5733 | MVT SHVT = TLI.getShiftAmountTy(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5734 | SDValue Tmp1, Tmp2, Tmp3, Tmp4, Tmp5, Tmp6, Tmp7, Tmp8; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5735 | switch (VT.getSimpleVT()) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5736 | default: assert(0 && "Unhandled Expand type in BSWAP!"); abort(); |
| 5737 | case MVT::i16: |
| 5738 | Tmp2 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5739 | Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5740 | return DAG.getNode(ISD::OR, VT, Tmp1, Tmp2); |
| 5741 | case MVT::i32: |
| 5742 | Tmp4 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); |
| 5743 | Tmp3 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5744 | Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5745 | Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); |
| 5746 | Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(0xFF0000, VT)); |
| 5747 | Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(0xFF00, VT)); |
| 5748 | Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); |
| 5749 | Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); |
| 5750 | return DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); |
| 5751 | case MVT::i64: |
| 5752 | Tmp8 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(56, SHVT)); |
| 5753 | Tmp7 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(40, SHVT)); |
| 5754 | Tmp6 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(24, SHVT)); |
| 5755 | Tmp5 = DAG.getNode(ISD::SHL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5756 | Tmp4 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(8, SHVT)); |
| 5757 | Tmp3 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(24, SHVT)); |
| 5758 | Tmp2 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(40, SHVT)); |
| 5759 | Tmp1 = DAG.getNode(ISD::SRL, VT, Op, DAG.getConstant(56, SHVT)); |
| 5760 | Tmp7 = DAG.getNode(ISD::AND, VT, Tmp7, DAG.getConstant(255ULL<<48, VT)); |
| 5761 | Tmp6 = DAG.getNode(ISD::AND, VT, Tmp6, DAG.getConstant(255ULL<<40, VT)); |
| 5762 | Tmp5 = DAG.getNode(ISD::AND, VT, Tmp5, DAG.getConstant(255ULL<<32, VT)); |
| 5763 | Tmp4 = DAG.getNode(ISD::AND, VT, Tmp4, DAG.getConstant(255ULL<<24, VT)); |
| 5764 | Tmp3 = DAG.getNode(ISD::AND, VT, Tmp3, DAG.getConstant(255ULL<<16, VT)); |
| 5765 | Tmp2 = DAG.getNode(ISD::AND, VT, Tmp2, DAG.getConstant(255ULL<<8 , VT)); |
| 5766 | Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp7); |
| 5767 | Tmp6 = DAG.getNode(ISD::OR, VT, Tmp6, Tmp5); |
| 5768 | Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp3); |
| 5769 | Tmp2 = DAG.getNode(ISD::OR, VT, Tmp2, Tmp1); |
| 5770 | Tmp8 = DAG.getNode(ISD::OR, VT, Tmp8, Tmp6); |
| 5771 | Tmp4 = DAG.getNode(ISD::OR, VT, Tmp4, Tmp2); |
| 5772 | return DAG.getNode(ISD::OR, VT, Tmp8, Tmp4); |
| 5773 | } |
| 5774 | } |
| 5775 | |
| 5776 | /// ExpandBitCount - Expand the specified bitcount instruction into operations. |
| 5777 | /// |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5778 | SDValue SelectionDAGLegalize::ExpandBitCount(unsigned Opc, SDValue Op) { |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5779 | switch (Opc) { |
| 5780 | default: assert(0 && "Cannot expand this yet!"); |
| 5781 | case ISD::CTPOP: { |
| 5782 | static const uint64_t mask[6] = { |
| 5783 | 0x5555555555555555ULL, 0x3333333333333333ULL, |
| 5784 | 0x0F0F0F0F0F0F0F0FULL, 0x00FF00FF00FF00FFULL, |
| 5785 | 0x0000FFFF0000FFFFULL, 0x00000000FFFFFFFFULL |
| 5786 | }; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5787 | MVT VT = Op.getValueType(); |
| 5788 | MVT ShVT = TLI.getShiftAmountTy(); |
| 5789 | unsigned len = VT.getSizeInBits(); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5790 | for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { |
| 5791 | //x = (x & mask[i][len/8]) + (x >> (1 << i) & mask[i][len/8]) |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5792 | SDValue Tmp2 = DAG.getConstant(mask[i], VT); |
| 5793 | SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5794 | Op = DAG.getNode(ISD::ADD, VT, DAG.getNode(ISD::AND, VT, Op, Tmp2), |
| 5795 | DAG.getNode(ISD::AND, VT, |
| 5796 | DAG.getNode(ISD::SRL, VT, Op, Tmp3),Tmp2)); |
| 5797 | } |
| 5798 | return Op; |
| 5799 | } |
| 5800 | case ISD::CTLZ: { |
| 5801 | // for now, we do this: |
| 5802 | // x = x | (x >> 1); |
| 5803 | // x = x | (x >> 2); |
| 5804 | // ... |
| 5805 | // x = x | (x >>16); |
| 5806 | // x = x | (x >>32); // for 64-bit input |
| 5807 | // return popcount(~x); |
| 5808 | // |
| 5809 | // but see also: http://www.hackersdelight.org/HDcode/nlz.cc |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5810 | MVT VT = Op.getValueType(); |
| 5811 | MVT ShVT = TLI.getShiftAmountTy(); |
| 5812 | unsigned len = VT.getSizeInBits(); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5813 | for (unsigned i = 0; (1U << i) <= (len / 2); ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5814 | SDValue Tmp3 = DAG.getConstant(1ULL << i, ShVT); |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5815 | Op = DAG.getNode(ISD::OR, VT, Op, DAG.getNode(ISD::SRL, VT, Op, Tmp3)); |
| 5816 | } |
| 5817 | Op = DAG.getNode(ISD::XOR, VT, Op, DAG.getConstant(~0ULL, VT)); |
| 5818 | return DAG.getNode(ISD::CTPOP, VT, Op); |
| 5819 | } |
| 5820 | case ISD::CTTZ: { |
| 5821 | // for now, we use: { return popcount(~x & (x - 1)); } |
| 5822 | // unless the target has ctlz but not ctpop, in which case we use: |
| 5823 | // { return 32 - nlz(~x & (x-1)); } |
| 5824 | // see also http://www.hackersdelight.org/HDcode/ntz.cc |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5825 | MVT VT = Op.getValueType(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5826 | SDValue Tmp2 = DAG.getConstant(~0ULL, VT); |
| 5827 | SDValue Tmp3 = DAG.getNode(ISD::AND, VT, |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5828 | DAG.getNode(ISD::XOR, VT, Op, Tmp2), |
| 5829 | DAG.getNode(ISD::SUB, VT, Op, DAG.getConstant(1, VT))); |
| 5830 | // If ISD::CTLZ is legal and CTPOP isn't, then do that instead. |
| 5831 | if (!TLI.isOperationLegal(ISD::CTPOP, VT) && |
| 5832 | TLI.isOperationLegal(ISD::CTLZ, VT)) |
| 5833 | return DAG.getNode(ISD::SUB, VT, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5834 | DAG.getConstant(VT.getSizeInBits(), VT), |
Chris Lattner | 22cde6a | 2006-01-28 08:25:58 +0000 | [diff] [blame] | 5835 | DAG.getNode(ISD::CTLZ, VT, Tmp3)); |
| 5836 | return DAG.getNode(ISD::CTPOP, VT, Tmp3); |
| 5837 | } |
| 5838 | } |
| 5839 | } |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 5840 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5841 | /// ExpandOp - Expand the specified SDValue into its two component pieces |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5842 | /// Lo&Hi. Note that the Op MUST be an expanded type. As a result of this, the |
| 5843 | /// LegalizeNodes map is filled in for any results that are not expanded, the |
| 5844 | /// ExpandedNodes map is filled in for any results that are expanded, and the |
| 5845 | /// Lo/Hi values are returned. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5846 | void SelectionDAGLegalize::ExpandOp(SDValue Op, SDValue &Lo, SDValue &Hi){ |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5847 | MVT VT = Op.getValueType(); |
| 5848 | MVT NVT = TLI.getTypeToTransformTo(VT); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5849 | SDNode *Node = Op.getNode(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5850 | assert(getTypeAction(VT) == Expand && "Not an expanded type!"); |
Duncan Sands | 8e4eb09 | 2008-06-08 20:54:56 +0000 | [diff] [blame] | 5851 | assert(((NVT.isInteger() && NVT.bitsLT(VT)) || VT.isFloatingPoint() || |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5852 | VT.isVector()) && "Cannot expand to FP value or to larger int value!"); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5853 | |
Chris Lattner | 6fdcb25 | 2005-09-02 20:32:45 +0000 | [diff] [blame] | 5854 | // See if we already expanded it. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5855 | DenseMap<SDValue, std::pair<SDValue, SDValue> >::iterator I |
Chris Lattner | 6fdcb25 | 2005-09-02 20:32:45 +0000 | [diff] [blame] | 5856 | = ExpandedNodes.find(Op); |
| 5857 | if (I != ExpandedNodes.end()) { |
| 5858 | Lo = I->second.first; |
| 5859 | Hi = I->second.second; |
| 5860 | return; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5861 | } |
| 5862 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5863 | switch (Node->getOpcode()) { |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 5864 | case ISD::CopyFromReg: |
| 5865 | assert(0 && "CopyFromReg must be legal!"); |
Dale Johannesen | 6eaeff2 | 2007-10-10 01:01:31 +0000 | [diff] [blame] | 5866 | case ISD::FP_ROUND_INREG: |
| 5867 | if (VT == MVT::ppcf128 && |
| 5868 | TLI.getOperationAction(ISD::FP_ROUND_INREG, VT) == |
| 5869 | TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5870 | SDValue SrcLo, SrcHi, Src; |
Dale Johannesen | fcf4d24 | 2007-10-11 23:32:15 +0000 | [diff] [blame] | 5871 | ExpandOp(Op.getOperand(0), SrcLo, SrcHi); |
| 5872 | Src = DAG.getNode(ISD::BUILD_PAIR, VT, SrcLo, SrcHi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5873 | SDValue Result = TLI.LowerOperation( |
Dale Johannesen | fcf4d24 | 2007-10-11 23:32:15 +0000 | [diff] [blame] | 5874 | DAG.getNode(ISD::FP_ROUND_INREG, VT, Src, Op.getOperand(1)), DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 5875 | assert(Result.getNode()->getOpcode() == ISD::BUILD_PAIR); |
| 5876 | Lo = Result.getNode()->getOperand(0); |
| 5877 | Hi = Result.getNode()->getOperand(1); |
Dale Johannesen | 6eaeff2 | 2007-10-10 01:01:31 +0000 | [diff] [blame] | 5878 | break; |
| 5879 | } |
| 5880 | // fall through |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 5881 | default: |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 5882 | #ifndef NDEBUG |
Dan Gohman | 3983358 | 2007-06-04 16:17:33 +0000 | [diff] [blame] | 5883 | cerr << "NODE: "; Node->dump(&DAG); cerr << "\n"; |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 5884 | #endif |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5885 | assert(0 && "Do not know how to expand this operator!"); |
| 5886 | abort(); |
Dan Gohman | 1953ecb | 2008-02-27 01:52:30 +0000 | [diff] [blame] | 5887 | case ISD::EXTRACT_ELEMENT: |
| 5888 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 5889 | if (cast<ConstantSDNode>(Node->getOperand(1))->getZExtValue()) |
Dan Gohman | 1953ecb | 2008-02-27 01:52:30 +0000 | [diff] [blame] | 5890 | return ExpandOp(Hi, Lo, Hi); |
Dan Gohman | 18714ae | 2008-02-27 19:44:57 +0000 | [diff] [blame] | 5891 | return ExpandOp(Lo, Lo, Hi); |
Dale Johannesen | 25f1d08 | 2007-10-31 00:32:36 +0000 | [diff] [blame] | 5892 | case ISD::EXTRACT_VECTOR_ELT: |
| 5893 | assert(VT==MVT::i64 && "Do not know how to expand this operator!"); |
| 5894 | // ExpandEXTRACT_VECTOR_ELT tolerates invalid result types. |
| 5895 | Lo = ExpandEXTRACT_VECTOR_ELT(Op); |
| 5896 | return ExpandOp(Lo, Lo, Hi); |
Nate Begeman | fc1b1da | 2005-04-01 22:34:39 +0000 | [diff] [blame] | 5897 | case ISD::UNDEF: |
| 5898 | Lo = DAG.getNode(ISD::UNDEF, NVT); |
| 5899 | Hi = DAG.getNode(ISD::UNDEF, NVT); |
| 5900 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5901 | case ISD::Constant: { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5902 | unsigned NVTBits = NVT.getSizeInBits(); |
Dan Gohman | 050f550 | 2008-03-03 22:20:46 +0000 | [diff] [blame] | 5903 | const APInt &Cst = cast<ConstantSDNode>(Node)->getAPIntValue(); |
| 5904 | Lo = DAG.getConstant(APInt(Cst).trunc(NVTBits), NVT); |
| 5905 | Hi = DAG.getConstant(Cst.lshr(NVTBits).trunc(NVTBits), NVT); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 5906 | break; |
| 5907 | } |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 5908 | case ISD::ConstantFP: { |
| 5909 | ConstantFPSDNode *CFP = cast<ConstantFPSDNode>(Node); |
Dale Johannesen | a471c2e | 2007-10-11 18:07:22 +0000 | [diff] [blame] | 5910 | if (CFP->getValueType(0) == MVT::ppcf128) { |
| 5911 | APInt api = CFP->getValueAPF().convertToAPInt(); |
| 5912 | Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[1])), |
| 5913 | MVT::f64); |
| 5914 | Hi = DAG.getConstantFP(APFloat(APInt(64, 1, &api.getRawData()[0])), |
| 5915 | MVT::f64); |
| 5916 | break; |
| 5917 | } |
Evan Cheng | 279101e | 2006-12-12 22:19:28 +0000 | [diff] [blame] | 5918 | Lo = ExpandConstantFP(CFP, false, DAG, TLI); |
Evan Cheng | 9f87788 | 2006-12-13 20:57:08 +0000 | [diff] [blame] | 5919 | if (getTypeAction(Lo.getValueType()) == Expand) |
| 5920 | ExpandOp(Lo, Lo, Hi); |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 5921 | break; |
| 5922 | } |
Chris Lattner | d4e50bb | 2005-03-28 22:03:13 +0000 | [diff] [blame] | 5923 | case ISD::BUILD_PAIR: |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 5924 | // Return the operands. |
| 5925 | Lo = Node->getOperand(0); |
| 5926 | Hi = Node->getOperand(1); |
Chris Lattner | d4e50bb | 2005-03-28 22:03:13 +0000 | [diff] [blame] | 5927 | break; |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5928 | |
| 5929 | case ISD::MERGE_VALUES: |
Chris Lattner | c58d558 | 2007-11-24 19:12:15 +0000 | [diff] [blame] | 5930 | if (Node->getNumValues() == 1) { |
| 5931 | ExpandOp(Op.getOperand(0), Lo, Hi); |
| 5932 | break; |
| 5933 | } |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5934 | // FIXME: For now only expand i64,chain = MERGE_VALUES (x, y) |
Gabor Greif | 99a6cb9 | 2008-08-26 22:36:50 +0000 | [diff] [blame] | 5935 | assert(Op.getResNo() == 0 && Node->getNumValues() == 2 && |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 5936 | Op.getValue(1).getValueType() == MVT::Other && |
| 5937 | "unhandled MERGE_VALUES"); |
| 5938 | ExpandOp(Op.getOperand(0), Lo, Hi); |
| 5939 | // Remember that we legalized the chain. |
| 5940 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Op.getOperand(1))); |
| 5941 | break; |
Chris Lattner | 58f7963 | 2005-12-12 22:27:43 +0000 | [diff] [blame] | 5942 | |
| 5943 | case ISD::SIGN_EXTEND_INREG: |
| 5944 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Chris Lattner | 4bdd275 | 2006-10-06 17:34:12 +0000 | [diff] [blame] | 5945 | // sext_inreg the low part if needed. |
| 5946 | Lo = DAG.getNode(ISD::SIGN_EXTEND_INREG, NVT, Lo, Node->getOperand(1)); |
| 5947 | |
| 5948 | // The high part gets the sign extension from the lo-part. This handles |
| 5949 | // things like sextinreg V:i64 from i8. |
Chris Lattner | 58f7963 | 2005-12-12 22:27:43 +0000 | [diff] [blame] | 5950 | Hi = DAG.getNode(ISD::SRA, NVT, Lo, |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 5951 | DAG.getConstant(NVT.getSizeInBits()-1, |
Chris Lattner | 58f7963 | 2005-12-12 22:27:43 +0000 | [diff] [blame] | 5952 | TLI.getShiftAmountTy())); |
Chris Lattner | 58f7963 | 2005-12-12 22:27:43 +0000 | [diff] [blame] | 5953 | break; |
Chris Lattner | d4e50bb | 2005-03-28 22:03:13 +0000 | [diff] [blame] | 5954 | |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 5955 | case ISD::BSWAP: { |
| 5956 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5957 | SDValue TempLo = DAG.getNode(ISD::BSWAP, NVT, Hi); |
Nate Begeman | d88fc03 | 2006-01-14 03:14:10 +0000 | [diff] [blame] | 5958 | Hi = DAG.getNode(ISD::BSWAP, NVT, Lo); |
| 5959 | Lo = TempLo; |
| 5960 | break; |
| 5961 | } |
| 5962 | |
Chris Lattner | edb1add | 2005-05-11 04:51:16 +0000 | [diff] [blame] | 5963 | case ISD::CTPOP: |
| 5964 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Chris Lattner | 9b583b4 | 2005-05-11 05:09:47 +0000 | [diff] [blame] | 5965 | Lo = DAG.getNode(ISD::ADD, NVT, // ctpop(HL) -> ctpop(H)+ctpop(L) |
| 5966 | DAG.getNode(ISD::CTPOP, NVT, Lo), |
| 5967 | DAG.getNode(ISD::CTPOP, NVT, Hi)); |
Chris Lattner | edb1add | 2005-05-11 04:51:16 +0000 | [diff] [blame] | 5968 | Hi = DAG.getConstant(0, NVT); |
| 5969 | break; |
| 5970 | |
Chris Lattner | 39a8f33 | 2005-05-12 19:05:01 +0000 | [diff] [blame] | 5971 | case ISD::CTLZ: { |
| 5972 | // ctlz (HL) -> ctlz(H) != 32 ? ctlz(H) : (ctlz(L)+32) |
Chris Lattner | 3becf20 | 2005-05-12 19:27:51 +0000 | [diff] [blame] | 5973 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5974 | SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); |
| 5975 | SDValue HLZ = DAG.getNode(ISD::CTLZ, NVT, Hi); |
| 5976 | SDValue TopNotZero = DAG.getSetCC(TLI.getSetCCResultType(HLZ), HLZ, BitsC, |
Chris Lattner | 7cf7e3f | 2005-08-09 20:20:18 +0000 | [diff] [blame] | 5977 | ISD::SETNE); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5978 | SDValue LowPart = DAG.getNode(ISD::CTLZ, NVT, Lo); |
Chris Lattner | 39a8f33 | 2005-05-12 19:05:01 +0000 | [diff] [blame] | 5979 | LowPart = DAG.getNode(ISD::ADD, NVT, LowPart, BitsC); |
| 5980 | |
| 5981 | Lo = DAG.getNode(ISD::SELECT, NVT, TopNotZero, HLZ, LowPart); |
| 5982 | Hi = DAG.getConstant(0, NVT); |
| 5983 | break; |
| 5984 | } |
| 5985 | |
| 5986 | case ISD::CTTZ: { |
| 5987 | // cttz (HL) -> cttz(L) != 32 ? cttz(L) : (cttz(H)+32) |
Chris Lattner | 3becf20 | 2005-05-12 19:27:51 +0000 | [diff] [blame] | 5988 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5989 | SDValue BitsC = DAG.getConstant(NVT.getSizeInBits(), NVT); |
| 5990 | SDValue LTZ = DAG.getNode(ISD::CTTZ, NVT, Lo); |
| 5991 | SDValue BotNotZero = DAG.getSetCC(TLI.getSetCCResultType(LTZ), LTZ, BitsC, |
Chris Lattner | 7cf7e3f | 2005-08-09 20:20:18 +0000 | [diff] [blame] | 5992 | ISD::SETNE); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 5993 | SDValue HiPart = DAG.getNode(ISD::CTTZ, NVT, Hi); |
Chris Lattner | 39a8f33 | 2005-05-12 19:05:01 +0000 | [diff] [blame] | 5994 | HiPart = DAG.getNode(ISD::ADD, NVT, HiPart, BitsC); |
| 5995 | |
| 5996 | Lo = DAG.getNode(ISD::SELECT, NVT, BotNotZero, LTZ, HiPart); |
| 5997 | Hi = DAG.getConstant(0, NVT); |
| 5998 | break; |
| 5999 | } |
Chris Lattner | edb1add | 2005-05-11 04:51:16 +0000 | [diff] [blame] | 6000 | |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 6001 | case ISD::VAARG: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6002 | SDValue Ch = Node->getOperand(0); // Legalize the chain. |
| 6003 | SDValue Ptr = Node->getOperand(1); // Legalize the pointer. |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 6004 | Lo = DAG.getVAArg(NVT, Ch, Ptr, Node->getOperand(2)); |
| 6005 | Hi = DAG.getVAArg(NVT, Lo.getValue(1), Ptr, Node->getOperand(2)); |
| 6006 | |
| 6007 | // Remember that we legalized the chain. |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6008 | Hi = LegalizeOp(Hi); |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 6009 | AddLegalizedOperand(Op.getValue(1), Hi.getValue(1)); |
Duncan Sands | 0753fc1 | 2008-02-11 10:37:04 +0000 | [diff] [blame] | 6010 | if (TLI.isBigEndian()) |
Nate Begeman | acc398c | 2006-01-25 18:21:52 +0000 | [diff] [blame] | 6011 | std::swap(Lo, Hi); |
| 6012 | break; |
| 6013 | } |
| 6014 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6015 | case ISD::LOAD: { |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6016 | LoadSDNode *LD = cast<LoadSDNode>(Node); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6017 | SDValue Ch = LD->getChain(); // Legalize the chain. |
| 6018 | SDValue Ptr = LD->getBasePtr(); // Legalize the pointer. |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6019 | ISD::LoadExtType ExtType = LD->getExtensionType(); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6020 | const Value *SV = LD->getSrcValue(); |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6021 | int SVOffset = LD->getSrcValueOffset(); |
| 6022 | unsigned Alignment = LD->getAlignment(); |
| 6023 | bool isVolatile = LD->isVolatile(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6024 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6025 | if (ExtType == ISD::NON_EXTLOAD) { |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6026 | Lo = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6027 | isVolatile, Alignment); |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 6028 | if (VT == MVT::f32 || VT == MVT::f64) { |
| 6029 | // f32->i32 or f64->i64 one to one expansion. |
| 6030 | // Remember that we legalized the chain. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6031 | AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); |
Evan Cheng | 9f87788 | 2006-12-13 20:57:08 +0000 | [diff] [blame] | 6032 | // Recursively expand the new load. |
| 6033 | if (getTypeAction(NVT) == Expand) |
| 6034 | ExpandOp(Lo, Lo, Hi); |
Evan Cheng | 0049521 | 2006-12-12 21:32:44 +0000 | [diff] [blame] | 6035 | break; |
| 6036 | } |
Chris Lattner | ec39a45 | 2005-01-19 18:02:17 +0000 | [diff] [blame] | 6037 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6038 | // Increment the pointer to the other half. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6039 | unsigned IncrementSize = Lo.getValueType().getSizeInBits()/8; |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6040 | Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 6041 | DAG.getIntPtrConstant(IncrementSize)); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6042 | SVOffset += IncrementSize; |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 6043 | Alignment = MinAlign(Alignment, IncrementSize); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6044 | Hi = DAG.getLoad(NVT, Ch, Ptr, SV, SVOffset, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6045 | isVolatile, Alignment); |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 6046 | |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6047 | // Build a factor node to remember that this load is independent of the |
| 6048 | // other one. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6049 | SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6050 | Hi.getValue(1)); |
| 6051 | |
| 6052 | // Remember that we legalized the chain. |
| 6053 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); |
Duncan Sands | 0753fc1 | 2008-02-11 10:37:04 +0000 | [diff] [blame] | 6054 | if (TLI.isBigEndian()) |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6055 | std::swap(Lo, Hi); |
| 6056 | } else { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6057 | MVT EVT = LD->getMemoryVT(); |
Evan Cheng | 548f611 | 2006-12-13 03:19:57 +0000 | [diff] [blame] | 6058 | |
Dale Johannesen | b6210fc | 2007-10-19 20:29:00 +0000 | [diff] [blame] | 6059 | if ((VT == MVT::f64 && EVT == MVT::f32) || |
| 6060 | (VT == MVT::ppcf128 && (EVT==MVT::f64 || EVT==MVT::f32))) { |
Evan Cheng | 548f611 | 2006-12-13 03:19:57 +0000 | [diff] [blame] | 6061 | // f64 = EXTLOAD f32 should expand to LOAD, FP_EXTEND |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6062 | SDValue Load = DAG.getLoad(EVT, Ch, Ptr, SV, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6063 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 548f611 | 2006-12-13 03:19:57 +0000 | [diff] [blame] | 6064 | // Remember that we legalized the chain. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6065 | AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Load.getValue(1))); |
Evan Cheng | 548f611 | 2006-12-13 03:19:57 +0000 | [diff] [blame] | 6066 | ExpandOp(DAG.getNode(ISD::FP_EXTEND, VT, Load), Lo, Hi); |
| 6067 | break; |
| 6068 | } |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6069 | |
| 6070 | if (EVT == NVT) |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6071 | Lo = DAG.getLoad(NVT, Ch, Ptr, SV, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6072 | SVOffset, isVolatile, Alignment); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6073 | else |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 6074 | Lo = DAG.getExtLoad(ExtType, NVT, Ch, Ptr, SV, |
Dan Gohman | d6fd1bc | 2007-07-09 22:18:38 +0000 | [diff] [blame] | 6075 | SVOffset, EVT, isVolatile, |
| 6076 | Alignment); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6077 | |
| 6078 | // Remember that we legalized the chain. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6079 | AddLegalizedOperand(SDValue(Node, 1), LegalizeOp(Lo.getValue(1))); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6080 | |
| 6081 | if (ExtType == ISD::SEXTLOAD) { |
| 6082 | // The high part is obtained by SRA'ing all but one of the bits of the |
| 6083 | // lo part. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6084 | unsigned LoSize = Lo.getValueType().getSizeInBits(); |
Evan Cheng | 466685d | 2006-10-09 20:57:25 +0000 | [diff] [blame] | 6085 | Hi = DAG.getNode(ISD::SRA, NVT, Lo, |
| 6086 | DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); |
| 6087 | } else if (ExtType == ISD::ZEXTLOAD) { |
| 6088 | // The high part is just a zero. |
| 6089 | Hi = DAG.getConstant(0, NVT); |
| 6090 | } else /* if (ExtType == ISD::EXTLOAD) */ { |
| 6091 | // The high part is undefined. |
| 6092 | Hi = DAG.getNode(ISD::UNDEF, NVT); |
| 6093 | } |
| 6094 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6095 | break; |
| 6096 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6097 | case ISD::AND: |
| 6098 | case ISD::OR: |
| 6099 | case ISD::XOR: { // Simple logical operators -> two trivial pieces. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6100 | SDValue LL, LH, RL, RH; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6101 | ExpandOp(Node->getOperand(0), LL, LH); |
| 6102 | ExpandOp(Node->getOperand(1), RL, RH); |
| 6103 | Lo = DAG.getNode(Node->getOpcode(), NVT, LL, RL); |
| 6104 | Hi = DAG.getNode(Node->getOpcode(), NVT, LH, RH); |
| 6105 | break; |
| 6106 | } |
| 6107 | case ISD::SELECT: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6108 | SDValue LL, LH, RL, RH; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6109 | ExpandOp(Node->getOperand(1), LL, LH); |
| 6110 | ExpandOp(Node->getOperand(2), RL, RH); |
Evan Cheng | 19103b1 | 2006-12-15 22:42:55 +0000 | [diff] [blame] | 6111 | if (getTypeAction(NVT) == Expand) |
| 6112 | NVT = TLI.getTypeToExpandTo(NVT); |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 6113 | Lo = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LL, RL); |
Evan Cheng | 19103b1 | 2006-12-15 22:42:55 +0000 | [diff] [blame] | 6114 | if (VT != MVT::f32) |
| 6115 | Hi = DAG.getNode(ISD::SELECT, NVT, Node->getOperand(0), LH, RH); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6116 | break; |
| 6117 | } |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 6118 | case ISD::SELECT_CC: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6119 | SDValue TL, TH, FL, FH; |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 6120 | ExpandOp(Node->getOperand(2), TL, TH); |
| 6121 | ExpandOp(Node->getOperand(3), FL, FH); |
Evan Cheng | 19103b1 | 2006-12-15 22:42:55 +0000 | [diff] [blame] | 6122 | if (getTypeAction(NVT) == Expand) |
| 6123 | NVT = TLI.getTypeToExpandTo(NVT); |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 6124 | Lo = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), |
| 6125 | Node->getOperand(1), TL, FL, Node->getOperand(4)); |
Evan Cheng | 19103b1 | 2006-12-15 22:42:55 +0000 | [diff] [blame] | 6126 | if (VT != MVT::f32) |
| 6127 | Hi = DAG.getNode(ISD::SELECT_CC, NVT, Node->getOperand(0), |
| 6128 | Node->getOperand(1), TH, FH, Node->getOperand(4)); |
Nate Begeman | 9373a81 | 2005-08-10 20:51:12 +0000 | [diff] [blame] | 6129 | break; |
| 6130 | } |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6131 | case ISD::ANY_EXTEND: |
| 6132 | // The low part is any extension of the input (which degenerates to a copy). |
| 6133 | Lo = DAG.getNode(ISD::ANY_EXTEND, NVT, Node->getOperand(0)); |
| 6134 | // The high part is undefined. |
| 6135 | Hi = DAG.getNode(ISD::UNDEF, NVT); |
| 6136 | break; |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6137 | case ISD::SIGN_EXTEND: { |
| 6138 | // The low part is just a sign extension of the input (which degenerates to |
| 6139 | // a copy). |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6140 | Lo = DAG.getNode(ISD::SIGN_EXTEND, NVT, Node->getOperand(0)); |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 6141 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6142 | // The high part is obtained by SRA'ing all but one of the bits of the lo |
| 6143 | // part. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6144 | unsigned LoSize = Lo.getValueType().getSizeInBits(); |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6145 | Hi = DAG.getNode(ISD::SRA, NVT, Lo, |
| 6146 | DAG.getConstant(LoSize-1, TLI.getShiftAmountTy())); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6147 | break; |
| 6148 | } |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6149 | case ISD::ZERO_EXTEND: |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6150 | // The low part is just a zero extension of the input (which degenerates to |
| 6151 | // a copy). |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6152 | Lo = DAG.getNode(ISD::ZERO_EXTEND, NVT, Node->getOperand(0)); |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 6153 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6154 | // The high part is just a zero. |
| 6155 | Hi = DAG.getConstant(0, NVT); |
| 6156 | break; |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 6157 | |
Chris Lattner | 4c948eb | 2007-02-13 23:55:16 +0000 | [diff] [blame] | 6158 | case ISD::TRUNCATE: { |
| 6159 | // The input value must be larger than this value. Expand *it*. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6160 | SDValue NewLo; |
Chris Lattner | 4c948eb | 2007-02-13 23:55:16 +0000 | [diff] [blame] | 6161 | ExpandOp(Node->getOperand(0), NewLo, Hi); |
| 6162 | |
| 6163 | // The low part is now either the right size, or it is closer. If not the |
| 6164 | // right size, make an illegal truncate so we recursively expand it. |
| 6165 | if (NewLo.getValueType() != Node->getValueType(0)) |
| 6166 | NewLo = DAG.getNode(ISD::TRUNCATE, Node->getValueType(0), NewLo); |
| 6167 | ExpandOp(NewLo, Lo, Hi); |
| 6168 | break; |
| 6169 | } |
| 6170 | |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 6171 | case ISD::BIT_CONVERT: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6172 | SDValue Tmp; |
Chris Lattner | f3f333d | 2006-09-09 00:20:27 +0000 | [diff] [blame] | 6173 | if (TLI.getOperationAction(ISD::BIT_CONVERT, VT) == TargetLowering::Custom){ |
| 6174 | // If the target wants to, allow it to lower this itself. |
| 6175 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 6176 | case Expand: assert(0 && "cannot expand FP!"); |
| 6177 | case Legal: Tmp = LegalizeOp(Node->getOperand(0)); break; |
| 6178 | case Promote: Tmp = PromoteOp (Node->getOperand(0)); break; |
| 6179 | } |
| 6180 | Tmp = TLI.LowerOperation(DAG.getNode(ISD::BIT_CONVERT, VT, Tmp), DAG); |
| 6181 | } |
| 6182 | |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6183 | // f32 / f64 must be expanded to i32 / i64. |
Evan Cheng | 13acce3 | 2006-12-11 19:27:14 +0000 | [diff] [blame] | 6184 | if (VT == MVT::f32 || VT == MVT::f64) { |
| 6185 | Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); |
Evan Cheng | 19103b1 | 2006-12-15 22:42:55 +0000 | [diff] [blame] | 6186 | if (getTypeAction(NVT) == Expand) |
| 6187 | ExpandOp(Lo, Lo, Hi); |
Evan Cheng | 7b2b5c8 | 2006-12-12 19:53:13 +0000 | [diff] [blame] | 6188 | break; |
| 6189 | } |
| 6190 | |
| 6191 | // If source operand will be expanded to the same type as VT, i.e. |
| 6192 | // i64 <- f64, i32 <- f32, expand the source operand instead. |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6193 | MVT VT0 = Node->getOperand(0).getValueType(); |
Evan Cheng | 7b2b5c8 | 2006-12-12 19:53:13 +0000 | [diff] [blame] | 6194 | if (getTypeAction(VT0) == Expand && TLI.getTypeToTransformTo(VT0) == VT) { |
| 6195 | ExpandOp(Node->getOperand(0), Lo, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6196 | break; |
| 6197 | } |
| 6198 | |
Chris Lattner | f3f333d | 2006-09-09 00:20:27 +0000 | [diff] [blame] | 6199 | // Turn this into a load/store pair by default. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6200 | if (Tmp.getNode() == 0) |
Chris Lattner | 1401d15 | 2008-01-16 07:45:30 +0000 | [diff] [blame] | 6201 | Tmp = EmitStackConvert(Node->getOperand(0), VT, VT); |
Chris Lattner | f3f333d | 2006-09-09 00:20:27 +0000 | [diff] [blame] | 6202 | |
Chris Lattner | 3548189 | 2005-12-23 00:16:34 +0000 | [diff] [blame] | 6203 | ExpandOp(Tmp, Lo, Hi); |
| 6204 | break; |
| 6205 | } |
Andrew Lenharth | f70e30b | 2005-11-20 21:32:07 +0000 | [diff] [blame] | 6206 | |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 6207 | case ISD::READCYCLECOUNTER: { |
Chris Lattner | 308575b | 2005-11-20 22:56:56 +0000 | [diff] [blame] | 6208 | assert(TLI.getOperationAction(ISD::READCYCLECOUNTER, VT) == |
| 6209 | TargetLowering::Custom && |
| 6210 | "Must custom expand ReadCycleCounter"); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6211 | SDValue Tmp = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6212 | assert(Tmp.getNode() && "Node must be custom expanded!"); |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 6213 | ExpandOp(Tmp.getValue(0), Lo, Hi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6214 | AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 6215 | LegalizeOp(Tmp.getValue(1))); |
Andrew Lenharth | f70e30b | 2005-11-20 21:32:07 +0000 | [diff] [blame] | 6216 | break; |
Chris Lattner | 27a6c73 | 2007-11-24 07:07:01 +0000 | [diff] [blame] | 6217 | } |
Andrew Lenharth | f70e30b | 2005-11-20 21:32:07 +0000 | [diff] [blame] | 6218 | |
Dale Johannesen | e00a8a2 | 2008-08-28 02:44:49 +0000 | [diff] [blame] | 6219 | // FIXME: should the LOAD_BIN and SWAP atomics get here too? Probably. |
| 6220 | case ISD::ATOMIC_CMP_SWAP_8: |
| 6221 | case ISD::ATOMIC_CMP_SWAP_16: |
| 6222 | case ISD::ATOMIC_CMP_SWAP_32: |
| 6223 | case ISD::ATOMIC_CMP_SWAP_64: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6224 | SDValue Tmp = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6225 | assert(Tmp.getNode() && "Node must be custom expanded!"); |
Andrew Lenharth | d19189e | 2008-03-05 01:15:49 +0000 | [diff] [blame] | 6226 | ExpandOp(Tmp.getValue(0), Lo, Hi); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6227 | AddLegalizedOperand(SDValue(Node, 1), // Remember we legalized the chain. |
Andrew Lenharth | d19189e | 2008-03-05 01:15:49 +0000 | [diff] [blame] | 6228 | LegalizeOp(Tmp.getValue(1))); |
| 6229 | break; |
| 6230 | } |
| 6231 | |
| 6232 | |
| 6233 | |
Chris Lattner | 4e6c746 | 2005-01-08 19:27:05 +0000 | [diff] [blame] | 6234 | // These operators cannot be expanded directly, emit them as calls to |
| 6235 | // library functions. |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6236 | case ISD::FP_TO_SINT: { |
Chris Lattner | 80a3e94 | 2005-07-29 00:33:32 +0000 | [diff] [blame] | 6237 | if (TLI.getOperationAction(ISD::FP_TO_SINT, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6238 | SDValue Op; |
Chris Lattner | f20d183 | 2005-07-30 01:40:57 +0000 | [diff] [blame] | 6239 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 6240 | case Expand: assert(0 && "cannot expand FP!"); |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6241 | case Legal: Op = LegalizeOp(Node->getOperand(0)); break; |
| 6242 | case Promote: Op = PromoteOp (Node->getOperand(0)); break; |
Chris Lattner | f20d183 | 2005-07-30 01:40:57 +0000 | [diff] [blame] | 6243 | } |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 6244 | |
Chris Lattner | f20d183 | 2005-07-30 01:40:57 +0000 | [diff] [blame] | 6245 | Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_SINT, VT, Op), DAG); |
| 6246 | |
Chris Lattner | 80a3e94 | 2005-07-29 00:33:32 +0000 | [diff] [blame] | 6247 | // Now that the custom expander is done, expand the result, which is still |
| 6248 | // VT. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6249 | if (Op.getNode()) { |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 6250 | ExpandOp(Op, Lo, Hi); |
| 6251 | break; |
| 6252 | } |
Chris Lattner | 80a3e94 | 2005-07-29 00:33:32 +0000 | [diff] [blame] | 6253 | } |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 6254 | |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6255 | RTLIB::Libcall LC = RTLIB::getFPTOSINT(Node->getOperand(0).getValueType(), |
| 6256 | VT); |
| 6257 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected uint-to-fp conversion!"); |
| 6258 | Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); |
Chris Lattner | 4e6c746 | 2005-01-08 19:27:05 +0000 | [diff] [blame] | 6259 | break; |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6260 | } |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 6261 | |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6262 | case ISD::FP_TO_UINT: { |
Chris Lattner | 80a3e94 | 2005-07-29 00:33:32 +0000 | [diff] [blame] | 6263 | if (TLI.getOperationAction(ISD::FP_TO_UINT, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6264 | SDValue Op; |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6265 | switch (getTypeAction(Node->getOperand(0).getValueType())) { |
| 6266 | case Expand: assert(0 && "cannot expand FP!"); |
| 6267 | case Legal: Op = LegalizeOp(Node->getOperand(0)); break; |
| 6268 | case Promote: Op = PromoteOp (Node->getOperand(0)); break; |
| 6269 | } |
| 6270 | |
| 6271 | Op = TLI.LowerOperation(DAG.getNode(ISD::FP_TO_UINT, VT, Op), DAG); |
| 6272 | |
| 6273 | // Now that the custom expander is done, expand the result. |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6274 | if (Op.getNode()) { |
Chris Lattner | 07dffd6 | 2005-08-26 00:14:16 +0000 | [diff] [blame] | 6275 | ExpandOp(Op, Lo, Hi); |
| 6276 | break; |
| 6277 | } |
Chris Lattner | 80a3e94 | 2005-07-29 00:33:32 +0000 | [diff] [blame] | 6278 | } |
Jeff Cohen | d29b6aa | 2005-07-30 18:33:25 +0000 | [diff] [blame] | 6279 | |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6280 | RTLIB::Libcall LC = RTLIB::getFPTOUINT(Node->getOperand(0).getValueType(), |
| 6281 | VT); |
| 6282 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unexpected fp-to-uint conversion!"); |
| 6283 | Lo = ExpandLibCall(LC, Node, false/*sign irrelevant*/, Hi); |
Chris Lattner | 4e6c746 | 2005-01-08 19:27:05 +0000 | [diff] [blame] | 6284 | break; |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6285 | } |
Chris Lattner | 4e6c746 | 2005-01-08 19:27:05 +0000 | [diff] [blame] | 6286 | |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6287 | case ISD::SHL: { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6288 | // If the target wants custom lowering, do so. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6289 | SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6290 | if (TLI.getOperationAction(ISD::SHL, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6291 | SDValue Op = DAG.getNode(ISD::SHL, VT, Node->getOperand(0), ShiftAmt); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6292 | Op = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6293 | if (Op.getNode()) { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6294 | // Now that the custom expander is done, expand the result, which is |
| 6295 | // still VT. |
| 6296 | ExpandOp(Op, Lo, Hi); |
| 6297 | break; |
| 6298 | } |
| 6299 | } |
| 6300 | |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6301 | // If ADDC/ADDE are supported and if the shift amount is a constant 1, emit |
| 6302 | // this X << 1 as X+X. |
| 6303 | if (ConstantSDNode *ShAmt = dyn_cast<ConstantSDNode>(ShiftAmt)) { |
Dan Gohman | 002e5d0 | 2008-03-13 22:13:53 +0000 | [diff] [blame] | 6304 | if (ShAmt->getAPIntValue() == 1 && TLI.isOperationLegal(ISD::ADDC, NVT) && |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6305 | TLI.isOperationLegal(ISD::ADDE, NVT)) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6306 | SDValue LoOps[2], HiOps[3]; |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6307 | ExpandOp(Node->getOperand(0), LoOps[0], HiOps[0]); |
| 6308 | SDVTList VTList = DAG.getVTList(LoOps[0].getValueType(), MVT::Flag); |
| 6309 | LoOps[1] = LoOps[0]; |
| 6310 | Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); |
| 6311 | |
| 6312 | HiOps[1] = HiOps[0]; |
| 6313 | HiOps[2] = Lo.getValue(1); |
| 6314 | Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); |
| 6315 | break; |
| 6316 | } |
| 6317 | } |
| 6318 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6319 | // If we can emit an efficient shift operation, do so now. |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6320 | if (ExpandShift(ISD::SHL, Node->getOperand(0), ShiftAmt, Lo, Hi)) |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6321 | break; |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6322 | |
| 6323 | // If this target supports SHL_PARTS, use it. |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6324 | TargetLowering::LegalizeAction Action = |
| 6325 | TLI.getOperationAction(ISD::SHL_PARTS, NVT); |
| 6326 | if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || |
| 6327 | Action == TargetLowering::Custom) { |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6328 | ExpandShiftParts(ISD::SHL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6329 | break; |
| 6330 | } |
| 6331 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6332 | // Otherwise, emit a libcall. |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6333 | Lo = ExpandLibCall(RTLIB::SHL_I64, Node, false/*left shift=unsigned*/, Hi); |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6334 | break; |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6335 | } |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6336 | |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6337 | case ISD::SRA: { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6338 | // If the target wants custom lowering, do so. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6339 | SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6340 | if (TLI.getOperationAction(ISD::SRA, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6341 | SDValue Op = DAG.getNode(ISD::SRA, VT, Node->getOperand(0), ShiftAmt); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6342 | Op = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6343 | if (Op.getNode()) { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6344 | // Now that the custom expander is done, expand the result, which is |
| 6345 | // still VT. |
| 6346 | ExpandOp(Op, Lo, Hi); |
| 6347 | break; |
| 6348 | } |
| 6349 | } |
| 6350 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6351 | // If we can emit an efficient shift operation, do so now. |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6352 | if (ExpandShift(ISD::SRA, Node->getOperand(0), ShiftAmt, Lo, Hi)) |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6353 | break; |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6354 | |
| 6355 | // If this target supports SRA_PARTS, use it. |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6356 | TargetLowering::LegalizeAction Action = |
| 6357 | TLI.getOperationAction(ISD::SRA_PARTS, NVT); |
| 6358 | if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || |
| 6359 | Action == TargetLowering::Custom) { |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6360 | ExpandShiftParts(ISD::SRA_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6361 | break; |
| 6362 | } |
| 6363 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6364 | // Otherwise, emit a libcall. |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6365 | Lo = ExpandLibCall(RTLIB::SRA_I64, Node, true/*ashr is signed*/, Hi); |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6366 | break; |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6367 | } |
| 6368 | |
| 6369 | case ISD::SRL: { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6370 | // If the target wants custom lowering, do so. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6371 | SDValue ShiftAmt = LegalizeOp(Node->getOperand(1)); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6372 | if (TLI.getOperationAction(ISD::SRL, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6373 | SDValue Op = DAG.getNode(ISD::SRL, VT, Node->getOperand(0), ShiftAmt); |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6374 | Op = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6375 | if (Op.getNode()) { |
Chris Lattner | 50ec897 | 2005-08-31 19:01:53 +0000 | [diff] [blame] | 6376 | // Now that the custom expander is done, expand the result, which is |
| 6377 | // still VT. |
| 6378 | ExpandOp(Op, Lo, Hi); |
| 6379 | break; |
| 6380 | } |
| 6381 | } |
| 6382 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6383 | // If we can emit an efficient shift operation, do so now. |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6384 | if (ExpandShift(ISD::SRL, Node->getOperand(0), ShiftAmt, Lo, Hi)) |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6385 | break; |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6386 | |
| 6387 | // If this target supports SRL_PARTS, use it. |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6388 | TargetLowering::LegalizeAction Action = |
| 6389 | TLI.getOperationAction(ISD::SRL_PARTS, NVT); |
| 6390 | if ((Action == TargetLowering::Legal && TLI.isTypeLegal(NVT)) || |
| 6391 | Action == TargetLowering::Custom) { |
Chris Lattner | 348e93c | 2006-01-21 04:27:00 +0000 | [diff] [blame] | 6392 | ExpandShiftParts(ISD::SRL_PARTS, Node->getOperand(0), ShiftAmt, Lo, Hi); |
Chris Lattner | 4759982 | 2005-04-02 03:38:53 +0000 | [diff] [blame] | 6393 | break; |
| 6394 | } |
| 6395 | |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6396 | // Otherwise, emit a libcall. |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6397 | Lo = ExpandLibCall(RTLIB::SRL_I64, Node, false/*lshr is unsigned*/, Hi); |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6398 | break; |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6399 | } |
Chris Lattner | e34b396 | 2005-01-19 04:19:40 +0000 | [diff] [blame] | 6400 | |
Misha Brukman | edf128a | 2005-04-21 22:36:52 +0000 | [diff] [blame] | 6401 | case ISD::ADD: |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6402 | case ISD::SUB: { |
| 6403 | // If the target wants to custom expand this, let them. |
| 6404 | if (TLI.getOperationAction(Node->getOpcode(), VT) == |
| 6405 | TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6406 | SDValue Result = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6407 | if (Result.getNode()) { |
Duncan Sands | 69bfb15 | 2008-06-22 09:42:16 +0000 | [diff] [blame] | 6408 | ExpandOp(Result, Lo, Hi); |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6409 | break; |
| 6410 | } |
| 6411 | } |
| 6412 | |
| 6413 | // Expand the subcomponents. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6414 | SDValue LHSL, LHSH, RHSL, RHSH; |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6415 | ExpandOp(Node->getOperand(0), LHSL, LHSH); |
| 6416 | ExpandOp(Node->getOperand(1), RHSL, RHSH); |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6417 | SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6418 | SDValue LoOps[2], HiOps[3]; |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 6419 | LoOps[0] = LHSL; |
| 6420 | LoOps[1] = RHSL; |
| 6421 | HiOps[0] = LHSH; |
| 6422 | HiOps[1] = RHSH; |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 6423 | if (Node->getOpcode() == ISD::ADD) { |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6424 | Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 6425 | HiOps[2] = Lo.getValue(1); |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6426 | Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 6427 | } else { |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6428 | Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); |
Chris Lattner | bd564bf | 2006-08-08 02:23:42 +0000 | [diff] [blame] | 6429 | HiOps[2] = Lo.getValue(1); |
Chris Lattner | 79980b0 | 2006-09-13 03:50:39 +0000 | [diff] [blame] | 6430 | Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); |
Nate Begeman | 551bf3f | 2006-02-17 05:43:56 +0000 | [diff] [blame] | 6431 | } |
Chris Lattner | 84f6788 | 2005-01-20 18:52:28 +0000 | [diff] [blame] | 6432 | break; |
Chris Lattner | 8137c9e | 2006-01-28 05:07:51 +0000 | [diff] [blame] | 6433 | } |
Chris Lattner | b429f73 | 2007-05-17 18:15:41 +0000 | [diff] [blame] | 6434 | |
| 6435 | case ISD::ADDC: |
| 6436 | case ISD::SUBC: { |
| 6437 | // Expand the subcomponents. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6438 | SDValue LHSL, LHSH, RHSL, RHSH; |
Chris Lattner | b429f73 | 2007-05-17 18:15:41 +0000 | [diff] [blame] | 6439 | ExpandOp(Node->getOperand(0), LHSL, LHSH); |
| 6440 | ExpandOp(Node->getOperand(1), RHSL, RHSH); |
| 6441 | SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6442 | SDValue LoOps[2] = { LHSL, RHSL }; |
| 6443 | SDValue HiOps[3] = { LHSH, RHSH }; |
Chris Lattner | b429f73 | 2007-05-17 18:15:41 +0000 | [diff] [blame] | 6444 | |
| 6445 | if (Node->getOpcode() == ISD::ADDC) { |
| 6446 | Lo = DAG.getNode(ISD::ADDC, VTList, LoOps, 2); |
| 6447 | HiOps[2] = Lo.getValue(1); |
| 6448 | Hi = DAG.getNode(ISD::ADDE, VTList, HiOps, 3); |
| 6449 | } else { |
| 6450 | Lo = DAG.getNode(ISD::SUBC, VTList, LoOps, 2); |
| 6451 | HiOps[2] = Lo.getValue(1); |
| 6452 | Hi = DAG.getNode(ISD::SUBE, VTList, HiOps, 3); |
| 6453 | } |
| 6454 | // Remember that we legalized the flag. |
| 6455 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); |
| 6456 | break; |
| 6457 | } |
| 6458 | case ISD::ADDE: |
| 6459 | case ISD::SUBE: { |
| 6460 | // Expand the subcomponents. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6461 | SDValue LHSL, LHSH, RHSL, RHSH; |
Chris Lattner | b429f73 | 2007-05-17 18:15:41 +0000 | [diff] [blame] | 6462 | ExpandOp(Node->getOperand(0), LHSL, LHSH); |
| 6463 | ExpandOp(Node->getOperand(1), RHSL, RHSH); |
| 6464 | SDVTList VTList = DAG.getVTList(LHSL.getValueType(), MVT::Flag); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6465 | SDValue LoOps[3] = { LHSL, RHSL, Node->getOperand(2) }; |
| 6466 | SDValue HiOps[3] = { LHSH, RHSH }; |
Chris Lattner | b429f73 | 2007-05-17 18:15:41 +0000 | [diff] [blame] | 6467 | |
| 6468 | Lo = DAG.getNode(Node->getOpcode(), VTList, LoOps, 3); |
| 6469 | HiOps[2] = Lo.getValue(1); |
| 6470 | Hi = DAG.getNode(Node->getOpcode(), VTList, HiOps, 3); |
| 6471 | |
| 6472 | // Remember that we legalized the flag. |
| 6473 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Hi.getValue(1))); |
| 6474 | break; |
| 6475 | } |
Nate Begeman | c7c1657 | 2005-04-11 03:01:51 +0000 | [diff] [blame] | 6476 | case ISD::MUL: { |
Chris Lattner | 7d7bffe | 2006-09-16 00:09:24 +0000 | [diff] [blame] | 6477 | // If the target wants to custom expand this, let them. |
| 6478 | if (TLI.getOperationAction(ISD::MUL, VT) == TargetLowering::Custom) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6479 | SDValue New = TLI.LowerOperation(Op, DAG); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6480 | if (New.getNode()) { |
Chris Lattner | 8829dc8 | 2006-09-16 05:08:34 +0000 | [diff] [blame] | 6481 | ExpandOp(New, Lo, Hi); |
Chris Lattner | 7d7bffe | 2006-09-16 00:09:24 +0000 | [diff] [blame] | 6482 | break; |
| 6483 | } |
| 6484 | } |
| 6485 | |
Evan Cheng | 3f4fd0f | 2006-09-01 18:17:58 +0000 | [diff] [blame] | 6486 | bool HasMULHS = TLI.isOperationLegal(ISD::MULHS, NVT); |
| 6487 | bool HasMULHU = TLI.isOperationLegal(ISD::MULHU, NVT); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6488 | bool HasSMUL_LOHI = TLI.isOperationLegal(ISD::SMUL_LOHI, NVT); |
| 6489 | bool HasUMUL_LOHI = TLI.isOperationLegal(ISD::UMUL_LOHI, NVT); |
| 6490 | if (HasMULHU || HasMULHS || HasUMUL_LOHI || HasSMUL_LOHI) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6491 | SDValue LL, LH, RL, RH; |
Nate Begeman | c7c1657 | 2005-04-11 03:01:51 +0000 | [diff] [blame] | 6492 | ExpandOp(Node->getOperand(0), LL, LH); |
| 6493 | ExpandOp(Node->getOperand(1), RL, RH); |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 6494 | unsigned OuterBitSize = Op.getValueSizeInBits(); |
| 6495 | unsigned InnerBitSize = RH.getValueSizeInBits(); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6496 | unsigned LHSSB = DAG.ComputeNumSignBits(Op.getOperand(0)); |
| 6497 | unsigned RHSSB = DAG.ComputeNumSignBits(Op.getOperand(1)); |
Dan Gohman | 76c605b | 2008-03-10 20:42:19 +0000 | [diff] [blame] | 6498 | APInt HighMask = APInt::getHighBitsSet(OuterBitSize, InnerBitSize); |
| 6499 | if (DAG.MaskedValueIsZero(Node->getOperand(0), HighMask) && |
| 6500 | DAG.MaskedValueIsZero(Node->getOperand(1), HighMask)) { |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6501 | // The inputs are both zero-extended. |
| 6502 | if (HasUMUL_LOHI) { |
| 6503 | // We can emit a umul_lohi. |
| 6504 | Lo = DAG.getNode(ISD::UMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6505 | Hi = SDValue(Lo.getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6506 | break; |
| 6507 | } |
| 6508 | if (HasMULHU) { |
| 6509 | // We can emit a mulhu+mul. |
| 6510 | Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); |
| 6511 | Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); |
| 6512 | break; |
| 6513 | } |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6514 | } |
Dan Gohman | 2e68b6f | 2008-02-25 21:11:39 +0000 | [diff] [blame] | 6515 | if (LHSSB > InnerBitSize && RHSSB > InnerBitSize) { |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6516 | // The input values are both sign-extended. |
| 6517 | if (HasSMUL_LOHI) { |
| 6518 | // We can emit a smul_lohi. |
| 6519 | Lo = DAG.getNode(ISD::SMUL_LOHI, DAG.getVTList(NVT, NVT), LL, RL); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6520 | Hi = SDValue(Lo.getNode(), 1); |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6521 | break; |
| 6522 | } |
| 6523 | if (HasMULHS) { |
| 6524 | // We can emit a mulhs+mul. |
| 6525 | Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); |
| 6526 | Hi = DAG.getNode(ISD::MULHS, NVT, LL, RL); |
| 6527 | break; |
| 6528 | } |
| 6529 | } |
| 6530 | if (HasUMUL_LOHI) { |
| 6531 | // Lo,Hi = umul LHS, RHS. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6532 | SDValue UMulLOHI = DAG.getNode(ISD::UMUL_LOHI, |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6533 | DAG.getVTList(NVT, NVT), LL, RL); |
| 6534 | Lo = UMulLOHI; |
| 6535 | Hi = UMulLOHI.getValue(1); |
Nate Begeman | 56eb868 | 2005-08-30 02:44:00 +0000 | [diff] [blame] | 6536 | RH = DAG.getNode(ISD::MUL, NVT, LL, RH); |
| 6537 | LH = DAG.getNode(ISD::MUL, NVT, LH, RL); |
| 6538 | Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); |
| 6539 | Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); |
Chris Lattner | a89654b | 2006-09-16 00:21:44 +0000 | [diff] [blame] | 6540 | break; |
Nate Begeman | 56eb868 | 2005-08-30 02:44:00 +0000 | [diff] [blame] | 6541 | } |
Dale Johannesen | 8eadd5a | 2007-10-24 22:26:08 +0000 | [diff] [blame] | 6542 | if (HasMULHU) { |
| 6543 | Lo = DAG.getNode(ISD::MUL, NVT, LL, RL); |
| 6544 | Hi = DAG.getNode(ISD::MULHU, NVT, LL, RL); |
| 6545 | RH = DAG.getNode(ISD::MUL, NVT, LL, RH); |
| 6546 | LH = DAG.getNode(ISD::MUL, NVT, LH, RL); |
| 6547 | Hi = DAG.getNode(ISD::ADD, NVT, Hi, RH); |
| 6548 | Hi = DAG.getNode(ISD::ADD, NVT, Hi, LH); |
| 6549 | break; |
| 6550 | } |
Nate Begeman | c7c1657 | 2005-04-11 03:01:51 +0000 | [diff] [blame] | 6551 | } |
Evan Cheng | 3f4fd0f | 2006-09-01 18:17:58 +0000 | [diff] [blame] | 6552 | |
Dan Gohman | 525178c | 2007-10-08 18:33:35 +0000 | [diff] [blame] | 6553 | // If nothing else, we can make a libcall. |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6554 | Lo = ExpandLibCall(RTLIB::MUL_I64, Node, false/*sign irrelevant*/, Hi); |
Nate Begeman | c7c1657 | 2005-04-11 03:01:51 +0000 | [diff] [blame] | 6555 | break; |
| 6556 | } |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6557 | case ISD::SDIV: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6558 | Lo = ExpandLibCall(RTLIB::SDIV_I64, Node, true, Hi); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6559 | break; |
| 6560 | case ISD::UDIV: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6561 | Lo = ExpandLibCall(RTLIB::UDIV_I64, Node, true, Hi); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6562 | break; |
| 6563 | case ISD::SREM: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6564 | Lo = ExpandLibCall(RTLIB::SREM_I64, Node, true, Hi); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6565 | break; |
| 6566 | case ISD::UREM: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6567 | Lo = ExpandLibCall(RTLIB::UREM_I64, Node, true, Hi); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6568 | break; |
Evan Cheng | 5c9ce18 | 2006-12-12 21:51:17 +0000 | [diff] [blame] | 6569 | |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6570 | case ISD::FADD: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6571 | Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::ADD_F32, |
| 6572 | RTLIB::ADD_F64, |
| 6573 | RTLIB::ADD_F80, |
| 6574 | RTLIB::ADD_PPCF128), |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6575 | Node, false, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6576 | break; |
| 6577 | case ISD::FSUB: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6578 | Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::SUB_F32, |
| 6579 | RTLIB::SUB_F64, |
| 6580 | RTLIB::SUB_F80, |
| 6581 | RTLIB::SUB_PPCF128), |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6582 | Node, false, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6583 | break; |
| 6584 | case ISD::FMUL: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6585 | Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::MUL_F32, |
| 6586 | RTLIB::MUL_F64, |
| 6587 | RTLIB::MUL_F80, |
| 6588 | RTLIB::MUL_PPCF128), |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6589 | Node, false, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6590 | break; |
| 6591 | case ISD::FDIV: |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6592 | Lo = ExpandLibCall(GetFPLibCall(VT, RTLIB::DIV_F32, |
| 6593 | RTLIB::DIV_F64, |
| 6594 | RTLIB::DIV_F80, |
| 6595 | RTLIB::DIV_PPCF128), |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6596 | Node, false, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6597 | break; |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6598 | case ISD::FP_EXTEND: { |
Dale Johannesen | ca68aaa | 2007-10-12 01:37:08 +0000 | [diff] [blame] | 6599 | if (VT == MVT::ppcf128) { |
| 6600 | assert(Node->getOperand(0).getValueType()==MVT::f32 || |
| 6601 | Node->getOperand(0).getValueType()==MVT::f64); |
| 6602 | const uint64_t zero = 0; |
| 6603 | if (Node->getOperand(0).getValueType()==MVT::f32) |
| 6604 | Hi = DAG.getNode(ISD::FP_EXTEND, MVT::f64, Node->getOperand(0)); |
| 6605 | else |
| 6606 | Hi = Node->getOperand(0); |
| 6607 | Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); |
| 6608 | break; |
| 6609 | } |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6610 | RTLIB::Libcall LC = RTLIB::getFPEXT(Node->getOperand(0).getValueType(), VT); |
| 6611 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_EXTEND!"); |
| 6612 | Lo = ExpandLibCall(LC, Node, true, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6613 | break; |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6614 | } |
| 6615 | case ISD::FP_ROUND: { |
| 6616 | RTLIB::Libcall LC = RTLIB::getFPROUND(Node->getOperand(0).getValueType(), |
| 6617 | VT); |
| 6618 | assert(LC != RTLIB::UNKNOWN_LIBCALL && "Unsupported FP_ROUND!"); |
| 6619 | Lo = ExpandLibCall(LC, Node, true, Hi); |
Evan Cheng | 1a8f1fe | 2006-12-09 02:42:38 +0000 | [diff] [blame] | 6620 | break; |
Duncan Sands | b2ff885 | 2008-07-17 02:36:29 +0000 | [diff] [blame] | 6621 | } |
Evan Cheng | 4b88702 | 2008-09-09 23:02:14 +0000 | [diff] [blame] | 6622 | case ISD::FSQRT: |
| 6623 | case ISD::FSIN: |
| 6624 | case ISD::FCOS: |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 6625 | case ISD::FLOG: |
| 6626 | case ISD::FLOG2: |
| 6627 | case ISD::FLOG10: |
| 6628 | case ISD::FEXP: |
| 6629 | case ISD::FEXP2: |
Dan Gohman | 2bb1e3e | 2008-08-21 18:38:14 +0000 | [diff] [blame] | 6630 | case ISD::FTRUNC: |
| 6631 | case ISD::FFLOOR: |
| 6632 | case ISD::FCEIL: |
| 6633 | case ISD::FRINT: |
| 6634 | case ISD::FNEARBYINT: |
Evan Cheng | 9d24ac5 | 2008-09-09 23:35:53 +0000 | [diff] [blame] | 6635 | case ISD::FPOW: |
| 6636 | case ISD::FPOWI: { |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6637 | RTLIB::Libcall LC = RTLIB::UNKNOWN_LIBCALL; |
Evan Cheng | 98ff3b9 | 2006-12-13 02:38:13 +0000 | [diff] [blame] | 6638 | switch(Node->getOpcode()) { |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6639 | case ISD::FSQRT: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 6640 | LC = GetFPLibCall(VT, RTLIB::SQRT_F32, RTLIB::SQRT_F64, |
| 6641 | RTLIB::SQRT_F80, RTLIB::SQRT_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6642 | break; |
| 6643 | case ISD::FSIN: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 6644 | LC = GetFPLibCall(VT, RTLIB::SIN_F32, RTLIB::SIN_F64, |
| 6645 | RTLIB::SIN_F80, RTLIB::SIN_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6646 | break; |
| 6647 | case ISD::FCOS: |
Duncan Sands | 007f984 | 2008-01-10 10:28:30 +0000 | [diff] [blame] | 6648 | LC = GetFPLibCall(VT, RTLIB::COS_F32, RTLIB::COS_F64, |
| 6649 | RTLIB::COS_F80, RTLIB::COS_PPCF128); |
Evan Cheng | 5696622 | 2007-01-12 02:11:51 +0000 | [diff] [blame] | 6650 | break; |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 6651 | case ISD::FLOG: |
| 6652 | LC = GetFPLibCall(VT, RTLIB::LOG_F32, RTLIB::LOG_F64, |
| 6653 | RTLIB::LOG_F80, RTLIB::LOG_PPCF128); |
| 6654 | break; |
| 6655 | case ISD::FLOG2: |
| 6656 | LC = GetFPLibCall(VT, RTLIB::LOG2_F32, RTLIB::LOG2_F64, |
| 6657 | RTLIB::LOG2_F80, RTLIB::LOG2_PPCF128); |
| 6658 | break; |
| 6659 | case ISD::FLOG10: |
| 6660 | LC = GetFPLibCall(VT, RTLIB::LOG10_F32, RTLIB::LOG10_F64, |
| 6661 | RTLIB::LOG10_F80, RTLIB::LOG10_PPCF128); |
| 6662 | break; |
| 6663 | case ISD::FEXP: |
| 6664 | LC = GetFPLibCall(VT, RTLIB::EXP_F32, RTLIB::EXP_F64, |
| 6665 | RTLIB::EXP_F80, RTLIB::EXP_PPCF128); |
| 6666 | break; |
| 6667 | case ISD::FEXP2: |
| 6668 | LC = GetFPLibCall(VT, RTLIB::EXP2_F32, RTLIB::EXP2_F64, |
| 6669 | RTLIB::EXP2_F80, RTLIB::EXP2_PPCF128); |
| 6670 | break; |
Dan Gohman | 2bb1e3e | 2008-08-21 18:38:14 +0000 | [diff] [blame] | 6671 | case ISD::FTRUNC: |
| 6672 | LC = GetFPLibCall(VT, RTLIB::TRUNC_F32, RTLIB::TRUNC_F64, |
| 6673 | RTLIB::TRUNC_F80, RTLIB::TRUNC_PPCF128); |
| 6674 | break; |
| 6675 | case ISD::FFLOOR: |
| 6676 | LC = GetFPLibCall(VT, RTLIB::FLOOR_F32, RTLIB::FLOOR_F64, |
| 6677 | RTLIB::FLOOR_F80, RTLIB::FLOOR_PPCF128); |
| 6678 | break; |
| 6679 | case ISD::FCEIL: |
| 6680 | LC = GetFPLibCall(VT, RTLIB::CEIL_F32, RTLIB::CEIL_F64, |
| 6681 | RTLIB::CEIL_F80, RTLIB::CEIL_PPCF128); |
| 6682 | break; |
| 6683 | case ISD::FRINT: |
| 6684 | LC = GetFPLibCall(VT, RTLIB::RINT_F32, RTLIB::RINT_F64, |
| 6685 | RTLIB::RINT_F80, RTLIB::RINT_PPCF128); |
| 6686 | break; |
| 6687 | case ISD::FNEARBYINT: |
| 6688 | LC = GetFPLibCall(VT, RTLIB::NEARBYINT_F32, RTLIB::NEARBYINT_F64, |
| 6689 | RTLIB::NEARBYINT_F80, RTLIB::NEARBYINT_PPCF128); |
| 6690 | break; |
Evan Cheng | 4b88702 | 2008-09-09 23:02:14 +0000 | [diff] [blame] | 6691 | case ISD::FPOW: |
| 6692 | LC = GetFPLibCall(VT, RTLIB::POW_F32, RTLIB::POW_F64, RTLIB::POW_F80, |
| 6693 | RTLIB::POW_PPCF128); |
| 6694 | break; |
| 6695 | case ISD::FPOWI: |
| 6696 | LC = GetFPLibCall(VT, RTLIB::POWI_F32, RTLIB::POWI_F64, RTLIB::POWI_F80, |
| 6697 | RTLIB::POWI_PPCF128); |
| 6698 | break; |
Evan Cheng | 98ff3b9 | 2006-12-13 02:38:13 +0000 | [diff] [blame] | 6699 | default: assert(0 && "Unreachable!"); |
| 6700 | } |
Duncan Sands | 460a14e | 2008-04-12 17:14:18 +0000 | [diff] [blame] | 6701 | Lo = ExpandLibCall(LC, Node, false, Hi); |
Evan Cheng | 98ff3b9 | 2006-12-13 02:38:13 +0000 | [diff] [blame] | 6702 | break; |
| 6703 | } |
Evan Cheng | 966bf24 | 2006-12-16 00:52:40 +0000 | [diff] [blame] | 6704 | case ISD::FABS: { |
Dale Johannesen | f646774 | 2007-10-12 19:02:17 +0000 | [diff] [blame] | 6705 | if (VT == MVT::ppcf128) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6706 | SDValue Tmp; |
Dale Johannesen | f646774 | 2007-10-12 19:02:17 +0000 | [diff] [blame] | 6707 | ExpandOp(Node->getOperand(0), Lo, Tmp); |
| 6708 | Hi = DAG.getNode(ISD::FABS, NVT, Tmp); |
| 6709 | // lo = hi==fabs(hi) ? lo : -lo; |
| 6710 | Lo = DAG.getNode(ISD::SELECT_CC, NVT, Hi, Tmp, |
| 6711 | Lo, DAG.getNode(ISD::FNEG, NVT, Lo), |
| 6712 | DAG.getCondCode(ISD::SETEQ)); |
| 6713 | break; |
| 6714 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6715 | SDValue Mask = (VT == MVT::f64) |
Evan Cheng | 966bf24 | 2006-12-16 00:52:40 +0000 | [diff] [blame] | 6716 | ? DAG.getConstantFP(BitsToDouble(~(1ULL << 63)), VT) |
| 6717 | : DAG.getConstantFP(BitsToFloat(~(1U << 31)), VT); |
| 6718 | Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); |
| 6719 | Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); |
| 6720 | Lo = DAG.getNode(ISD::AND, NVT, Lo, Mask); |
| 6721 | if (getTypeAction(NVT) == Expand) |
| 6722 | ExpandOp(Lo, Lo, Hi); |
| 6723 | break; |
| 6724 | } |
| 6725 | case ISD::FNEG: { |
Dale Johannesen | f646774 | 2007-10-12 19:02:17 +0000 | [diff] [blame] | 6726 | if (VT == MVT::ppcf128) { |
| 6727 | ExpandOp(Node->getOperand(0), Lo, Hi); |
| 6728 | Lo = DAG.getNode(ISD::FNEG, MVT::f64, Lo); |
| 6729 | Hi = DAG.getNode(ISD::FNEG, MVT::f64, Hi); |
| 6730 | break; |
| 6731 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6732 | SDValue Mask = (VT == MVT::f64) |
Evan Cheng | 966bf24 | 2006-12-16 00:52:40 +0000 | [diff] [blame] | 6733 | ? DAG.getConstantFP(BitsToDouble(1ULL << 63), VT) |
| 6734 | : DAG.getConstantFP(BitsToFloat(1U << 31), VT); |
| 6735 | Mask = DAG.getNode(ISD::BIT_CONVERT, NVT, Mask); |
| 6736 | Lo = DAG.getNode(ISD::BIT_CONVERT, NVT, Node->getOperand(0)); |
| 6737 | Lo = DAG.getNode(ISD::XOR, NVT, Lo, Mask); |
| 6738 | if (getTypeAction(NVT) == Expand) |
| 6739 | ExpandOp(Lo, Lo, Hi); |
| 6740 | break; |
| 6741 | } |
Evan Cheng | 912095b | 2007-01-04 21:56:39 +0000 | [diff] [blame] | 6742 | case ISD::FCOPYSIGN: { |
| 6743 | Lo = ExpandFCOPYSIGNToBitwiseOps(Node, NVT, DAG, TLI); |
| 6744 | if (getTypeAction(NVT) == Expand) |
| 6745 | ExpandOp(Lo, Lo, Hi); |
| 6746 | break; |
| 6747 | } |
Evan Cheng | 7df28dc | 2006-12-19 01:44:04 +0000 | [diff] [blame] | 6748 | case ISD::SINT_TO_FP: |
| 6749 | case ISD::UINT_TO_FP: { |
| 6750 | bool isSigned = Node->getOpcode() == ISD::SINT_TO_FP; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6751 | MVT SrcVT = Node->getOperand(0).getValueType(); |
Dale Johannesen | cf49819 | 2008-03-18 17:28:38 +0000 | [diff] [blame] | 6752 | |
| 6753 | // Promote the operand if needed. Do this before checking for |
| 6754 | // ppcf128 so conversions of i16 and i8 work. |
| 6755 | if (getTypeAction(SrcVT) == Promote) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6756 | SDValue Tmp = PromoteOp(Node->getOperand(0)); |
Dale Johannesen | cf49819 | 2008-03-18 17:28:38 +0000 | [diff] [blame] | 6757 | Tmp = isSigned |
| 6758 | ? DAG.getNode(ISD::SIGN_EXTEND_INREG, Tmp.getValueType(), Tmp, |
| 6759 | DAG.getValueType(SrcVT)) |
| 6760 | : DAG.getZeroExtendInReg(Tmp, SrcVT); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6761 | Node = DAG.UpdateNodeOperands(Op, Tmp).getNode(); |
Dale Johannesen | cf49819 | 2008-03-18 17:28:38 +0000 | [diff] [blame] | 6762 | SrcVT = Node->getOperand(0).getValueType(); |
| 6763 | } |
| 6764 | |
Dan Gohman | a2e9485 | 2008-03-10 23:03:31 +0000 | [diff] [blame] | 6765 | if (VT == MVT::ppcf128 && SrcVT == MVT::i32) { |
Dan Gohman | f6283fd | 2008-02-25 21:39:34 +0000 | [diff] [blame] | 6766 | static const uint64_t zero = 0; |
Dale Johannesen | ca68aaa | 2007-10-12 01:37:08 +0000 | [diff] [blame] | 6767 | if (isSigned) { |
| 6768 | Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, |
| 6769 | Node->getOperand(0))); |
| 6770 | Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); |
| 6771 | } else { |
Dan Gohman | f6283fd | 2008-02-25 21:39:34 +0000 | [diff] [blame] | 6772 | static const uint64_t TwoE32[] = { 0x41f0000000000000LL, 0 }; |
Dale Johannesen | ca68aaa | 2007-10-12 01:37:08 +0000 | [diff] [blame] | 6773 | Hi = LegalizeOp(DAG.getNode(ISD::SINT_TO_FP, MVT::f64, |
| 6774 | Node->getOperand(0))); |
| 6775 | Lo = DAG.getConstantFP(APFloat(APInt(64, 1, &zero)), MVT::f64); |
| 6776 | Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); |
Dale Johannesen | 6e63e09 | 2007-10-12 17:52:03 +0000 | [diff] [blame] | 6777 | // X>=0 ? {(f64)x, 0} : {(f64)x, 0} + 2^32 |
Dale Johannesen | ca68aaa | 2007-10-12 01:37:08 +0000 | [diff] [blame] | 6778 | ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), |
| 6779 | DAG.getConstant(0, MVT::i32), |
| 6780 | DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, |
| 6781 | DAG.getConstantFP( |
| 6782 | APFloat(APInt(128, 2, TwoE32)), |
| 6783 | MVT::ppcf128)), |
| 6784 | Hi, |
| 6785 | DAG.getCondCode(ISD::SETLT)), |
| 6786 | Lo, Hi); |
| 6787 | } |
| 6788 | break; |
| 6789 | } |
Dale Johannesen | 6e63e09 | 2007-10-12 17:52:03 +0000 | [diff] [blame] | 6790 | if (VT == MVT::ppcf128 && SrcVT == MVT::i64 && !isSigned) { |
| 6791 | // si64->ppcf128 done by libcall, below |
Dan Gohman | f6283fd | 2008-02-25 21:39:34 +0000 | [diff] [blame] | 6792 | static const uint64_t TwoE64[] = { 0x43f0000000000000LL, 0 }; |
Dale Johannesen | 6e63e09 | 2007-10-12 17:52:03 +0000 | [diff] [blame] | 6793 | ExpandOp(DAG.getNode(ISD::SINT_TO_FP, MVT::ppcf128, Node->getOperand(0)), |
| 6794 | Lo, Hi); |
| 6795 | Hi = DAG.getNode(ISD::BUILD_PAIR, VT, Lo, Hi); |
| 6796 | // x>=0 ? (ppcf128)(i64)x : (ppcf128)(i64)x + 2^64 |
| 6797 | ExpandOp(DAG.getNode(ISD::SELECT_CC, MVT::ppcf128, Node->getOperand(0), |
| 6798 | DAG.getConstant(0, MVT::i64), |
| 6799 | DAG.getNode(ISD::FADD, MVT::ppcf128, Hi, |
| 6800 | DAG.getConstantFP( |
| 6801 | APFloat(APInt(128, 2, TwoE64)), |
| 6802 | MVT::ppcf128)), |
| 6803 | Hi, |
| 6804 | DAG.getCondCode(ISD::SETLT)), |
| 6805 | Lo, Hi); |
| 6806 | break; |
| 6807 | } |
Evan Cheng | 7df28dc | 2006-12-19 01:44:04 +0000 | [diff] [blame] | 6808 | |
Dan Gohman | a2e9485 | 2008-03-10 23:03:31 +0000 | [diff] [blame] | 6809 | Lo = ExpandIntToFP(Node->getOpcode() == ISD::SINT_TO_FP, VT, |
| 6810 | Node->getOperand(0)); |
Evan Cheng | 110cf48 | 2008-04-01 01:50:16 +0000 | [diff] [blame] | 6811 | if (getTypeAction(Lo.getValueType()) == Expand) |
Evan Cheng | 6ad2f93 | 2008-04-01 01:51:26 +0000 | [diff] [blame] | 6812 | // float to i32 etc. can be 'expanded' to a single node. |
Evan Cheng | 110cf48 | 2008-04-01 01:50:16 +0000 | [diff] [blame] | 6813 | ExpandOp(Lo, Lo, Hi); |
Evan Cheng | 7df28dc | 2006-12-19 01:44:04 +0000 | [diff] [blame] | 6814 | break; |
| 6815 | } |
Evan Cheng | 98ff3b9 | 2006-12-13 02:38:13 +0000 | [diff] [blame] | 6816 | } |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6817 | |
Chris Lattner | 8339736 | 2005-12-21 18:02:52 +0000 | [diff] [blame] | 6818 | // Make sure the resultant values have been legalized themselves, unless this |
| 6819 | // is a type that requires multi-step expansion. |
| 6820 | if (getTypeAction(NVT) != Expand && NVT != MVT::isVoid) { |
| 6821 | Lo = LegalizeOp(Lo); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6822 | if (Hi.getNode()) |
Evan Cheng | 13acce3 | 2006-12-11 19:27:14 +0000 | [diff] [blame] | 6823 | // Don't legalize the high part if it is expanded to a single node. |
| 6824 | Hi = LegalizeOp(Hi); |
Chris Lattner | 8339736 | 2005-12-21 18:02:52 +0000 | [diff] [blame] | 6825 | } |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6826 | |
| 6827 | // Remember in a map if the values will be reused later. |
Dan Gohman | 6b345ee | 2008-07-07 17:46:23 +0000 | [diff] [blame] | 6828 | bool isNew = |
| 6829 | ExpandedNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; |
Evan Cheng | 05a2d56 | 2006-01-09 18:31:59 +0000 | [diff] [blame] | 6830 | assert(isNew && "Value already expanded?!?"); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 6831 | } |
| 6832 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6833 | /// SplitVectorOp - Given an operand of vector type, break it down into |
| 6834 | /// two smaller values, still of vector type. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6835 | void SelectionDAGLegalize::SplitVectorOp(SDValue Op, SDValue &Lo, |
| 6836 | SDValue &Hi) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6837 | assert(Op.getValueType().isVector() && "Cannot split non-vector type!"); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 6838 | SDNode *Node = Op.getNode(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6839 | unsigned NumElements = Op.getValueType().getVectorNumElements(); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 6840 | assert(NumElements > 1 && "Cannot split a single element vector!"); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6841 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6842 | MVT NewEltVT = Op.getValueType().getVectorElementType(); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6843 | |
| 6844 | unsigned NewNumElts_Lo = 1 << Log2_32(NumElements-1); |
| 6845 | unsigned NewNumElts_Hi = NumElements - NewNumElts_Lo; |
| 6846 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6847 | MVT NewVT_Lo = MVT::getVectorVT(NewEltVT, NewNumElts_Lo); |
| 6848 | MVT NewVT_Hi = MVT::getVectorVT(NewEltVT, NewNumElts_Hi); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6849 | |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 6850 | // See if we already split it. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6851 | std::map<SDValue, std::pair<SDValue, SDValue> >::iterator I |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 6852 | = SplitNodes.find(Op); |
| 6853 | if (I != SplitNodes.end()) { |
| 6854 | Lo = I->second.first; |
| 6855 | Hi = I->second.second; |
| 6856 | return; |
| 6857 | } |
| 6858 | |
| 6859 | switch (Node->getOpcode()) { |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 6860 | default: |
| 6861 | #ifndef NDEBUG |
Dan Gohman | 3983358 | 2007-06-04 16:17:33 +0000 | [diff] [blame] | 6862 | Node->dump(&DAG); |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 6863 | #endif |
| 6864 | assert(0 && "Unhandled operation in SplitVectorOp!"); |
Chris Lattner | daf9bc8 | 2007-11-19 20:21:32 +0000 | [diff] [blame] | 6865 | case ISD::UNDEF: |
| 6866 | Lo = DAG.getNode(ISD::UNDEF, NewVT_Lo); |
| 6867 | Hi = DAG.getNode(ISD::UNDEF, NewVT_Hi); |
| 6868 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6869 | case ISD::BUILD_PAIR: |
| 6870 | Lo = Node->getOperand(0); |
| 6871 | Hi = Node->getOperand(1); |
| 6872 | break; |
Dan Gohman | 9fe4662 | 2007-09-28 23:53:40 +0000 | [diff] [blame] | 6873 | case ISD::INSERT_VECTOR_ELT: { |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 6874 | if (ConstantSDNode *Idx = dyn_cast<ConstantSDNode>(Node->getOperand(2))) { |
| 6875 | SplitVectorOp(Node->getOperand(0), Lo, Hi); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 6876 | unsigned Index = Idx->getZExtValue(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6877 | SDValue ScalarOp = Node->getOperand(1); |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 6878 | if (Index < NewNumElts_Lo) |
| 6879 | Lo = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Lo, Lo, ScalarOp, |
| 6880 | DAG.getIntPtrConstant(Index)); |
| 6881 | else |
| 6882 | Hi = DAG.getNode(ISD::INSERT_VECTOR_ELT, NewVT_Hi, Hi, ScalarOp, |
| 6883 | DAG.getIntPtrConstant(Index - NewNumElts_Lo)); |
| 6884 | break; |
| 6885 | } |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6886 | SDValue Tmp = PerformInsertVectorEltInMemory(Node->getOperand(0), |
Nate Begeman | 6867991 | 2008-04-25 18:07:40 +0000 | [diff] [blame] | 6887 | Node->getOperand(1), |
| 6888 | Node->getOperand(2)); |
| 6889 | SplitVectorOp(Tmp, Lo, Hi); |
Dan Gohman | 9fe4662 | 2007-09-28 23:53:40 +0000 | [diff] [blame] | 6890 | break; |
| 6891 | } |
Chris Lattner | 6c9c680 | 2007-11-19 21:16:54 +0000 | [diff] [blame] | 6892 | case ISD::VECTOR_SHUFFLE: { |
| 6893 | // Build the low part. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6894 | SDValue Mask = Node->getOperand(2); |
| 6895 | SmallVector<SDValue, 8> Ops; |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6896 | MVT PtrVT = TLI.getPointerTy(); |
Chris Lattner | 6c9c680 | 2007-11-19 21:16:54 +0000 | [diff] [blame] | 6897 | |
| 6898 | // Insert all of the elements from the input that are needed. We use |
| 6899 | // buildvector of extractelement here because the input vectors will have |
| 6900 | // to be legalized, so this makes the code simpler. |
| 6901 | for (unsigned i = 0; i != NewNumElts_Lo; ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6902 | SDValue IdxNode = Mask.getOperand(i); |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 6903 | if (IdxNode.getOpcode() == ISD::UNDEF) { |
| 6904 | Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); |
| 6905 | continue; |
| 6906 | } |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 6907 | unsigned Idx = cast<ConstantSDNode>(IdxNode)->getZExtValue(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6908 | SDValue InVec = Node->getOperand(0); |
Chris Lattner | 6c9c680 | 2007-11-19 21:16:54 +0000 | [diff] [blame] | 6909 | if (Idx >= NumElements) { |
| 6910 | InVec = Node->getOperand(1); |
| 6911 | Idx -= NumElements; |
| 6912 | } |
| 6913 | Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, |
| 6914 | DAG.getConstant(Idx, PtrVT))); |
| 6915 | } |
| 6916 | Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &Ops[0], Ops.size()); |
| 6917 | Ops.clear(); |
| 6918 | |
| 6919 | for (unsigned i = NewNumElts_Lo; i != NumElements; ++i) { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6920 | SDValue IdxNode = Mask.getOperand(i); |
Nate Begeman | 5922f56 | 2008-03-14 00:53:31 +0000 | [diff] [blame] | 6921 | if (IdxNode.getOpcode() == ISD::UNDEF) { |
| 6922 | Ops.push_back(DAG.getNode(ISD::UNDEF, NewEltVT)); |
| 6923 | continue; |
| 6924 | } |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 6925 | unsigned Idx = cast<ConstantSDNode>(IdxNode)->getZExtValue(); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6926 | SDValue InVec = Node->getOperand(0); |
Chris Lattner | 6c9c680 | 2007-11-19 21:16:54 +0000 | [diff] [blame] | 6927 | if (Idx >= NumElements) { |
| 6928 | InVec = Node->getOperand(1); |
| 6929 | Idx -= NumElements; |
| 6930 | } |
| 6931 | Ops.push_back(DAG.getNode(ISD::EXTRACT_VECTOR_ELT, NewEltVT, InVec, |
| 6932 | DAG.getConstant(Idx, PtrVT))); |
| 6933 | } |
Mon P Wang | 92879f3 | 2008-07-25 01:30:26 +0000 | [diff] [blame] | 6934 | Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &Ops[0], Ops.size()); |
Chris Lattner | 6c9c680 | 2007-11-19 21:16:54 +0000 | [diff] [blame] | 6935 | break; |
| 6936 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6937 | case ISD::BUILD_VECTOR: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6938 | SmallVector<SDValue, 8> LoOps(Node->op_begin(), |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6939 | Node->op_begin()+NewNumElts_Lo); |
| 6940 | Lo = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Lo, &LoOps[0], LoOps.size()); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 6941 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6942 | SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumElts_Lo, |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6943 | Node->op_end()); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6944 | Hi = DAG.getNode(ISD::BUILD_VECTOR, NewVT_Hi, &HiOps[0], HiOps.size()); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 6945 | break; |
| 6946 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6947 | case ISD::CONCAT_VECTORS: { |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6948 | // FIXME: Handle non-power-of-two vectors? |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6949 | unsigned NewNumSubvectors = Node->getNumOperands() / 2; |
| 6950 | if (NewNumSubvectors == 1) { |
| 6951 | Lo = Node->getOperand(0); |
| 6952 | Hi = Node->getOperand(1); |
| 6953 | } else { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6954 | SmallVector<SDValue, 8> LoOps(Node->op_begin(), |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6955 | Node->op_begin()+NewNumSubvectors); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6956 | Lo = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Lo, &LoOps[0], LoOps.size()); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 6957 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6958 | SmallVector<SDValue, 8> HiOps(Node->op_begin()+NewNumSubvectors, |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6959 | Node->op_end()); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6960 | Hi = DAG.getNode(ISD::CONCAT_VECTORS, NewVT_Hi, &HiOps[0], HiOps.size()); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 6961 | } |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 6962 | break; |
| 6963 | } |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6964 | case ISD::SELECT: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6965 | SDValue Cond = Node->getOperand(0); |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6966 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6967 | SDValue LL, LH, RL, RH; |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6968 | SplitVectorOp(Node->getOperand(1), LL, LH); |
| 6969 | SplitVectorOp(Node->getOperand(2), RL, RH); |
| 6970 | |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 6971 | if (Cond.getValueType().isVector()) { |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6972 | // Handle a vector merge. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6973 | SDValue CL, CH; |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6974 | SplitVectorOp(Cond, CL, CH); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6975 | Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, CL, LL, RL); |
| 6976 | Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, CH, LH, RH); |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6977 | } else { |
| 6978 | // Handle a simple select with vector operands. |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 6979 | Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, Cond, LL, RL); |
| 6980 | Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, Cond, LH, RH); |
Dan Gohman | c623096 | 2007-10-17 14:48:28 +0000 | [diff] [blame] | 6981 | } |
| 6982 | break; |
| 6983 | } |
Chris Lattner | 80c1a56 | 2008-06-30 02:43:01 +0000 | [diff] [blame] | 6984 | case ISD::SELECT_CC: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6985 | SDValue CondLHS = Node->getOperand(0); |
| 6986 | SDValue CondRHS = Node->getOperand(1); |
| 6987 | SDValue CondCode = Node->getOperand(4); |
Chris Lattner | 80c1a56 | 2008-06-30 02:43:01 +0000 | [diff] [blame] | 6988 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 6989 | SDValue LL, LH, RL, RH; |
Chris Lattner | 80c1a56 | 2008-06-30 02:43:01 +0000 | [diff] [blame] | 6990 | SplitVectorOp(Node->getOperand(2), LL, LH); |
| 6991 | SplitVectorOp(Node->getOperand(3), RL, RH); |
| 6992 | |
| 6993 | // Handle a simple select with vector operands. |
| 6994 | Lo = DAG.getNode(ISD::SELECT_CC, NewVT_Lo, CondLHS, CondRHS, |
| 6995 | LL, RL, CondCode); |
| 6996 | Hi = DAG.getNode(ISD::SELECT_CC, NewVT_Hi, CondLHS, CondRHS, |
| 6997 | LH, RH, CondCode); |
| 6998 | break; |
| 6999 | } |
Nate Begeman | b43e9c1 | 2008-05-12 19:40:03 +0000 | [diff] [blame] | 7000 | case ISD::VSETCC: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7001 | SDValue LL, LH, RL, RH; |
Nate Begeman | b43e9c1 | 2008-05-12 19:40:03 +0000 | [diff] [blame] | 7002 | SplitVectorOp(Node->getOperand(0), LL, LH); |
| 7003 | SplitVectorOp(Node->getOperand(1), RL, RH); |
| 7004 | Lo = DAG.getNode(ISD::VSETCC, NewVT_Lo, LL, RL, Node->getOperand(2)); |
| 7005 | Hi = DAG.getNode(ISD::VSETCC, NewVT_Hi, LH, RH, Node->getOperand(2)); |
| 7006 | break; |
| 7007 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7008 | case ISD::ADD: |
| 7009 | case ISD::SUB: |
| 7010 | case ISD::MUL: |
| 7011 | case ISD::FADD: |
| 7012 | case ISD::FSUB: |
| 7013 | case ISD::FMUL: |
| 7014 | case ISD::SDIV: |
| 7015 | case ISD::UDIV: |
| 7016 | case ISD::FDIV: |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7017 | case ISD::FPOW: |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7018 | case ISD::AND: |
| 7019 | case ISD::OR: |
Dan Gohman | 089617d | 2007-11-19 15:15:03 +0000 | [diff] [blame] | 7020 | case ISD::XOR: |
| 7021 | case ISD::UREM: |
| 7022 | case ISD::SREM: |
| 7023 | case ISD::FREM: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7024 | SDValue LL, LH, RL, RH; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7025 | SplitVectorOp(Node->getOperand(0), LL, LH); |
| 7026 | SplitVectorOp(Node->getOperand(1), RL, RH); |
| 7027 | |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 7028 | Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, LL, RL); |
| 7029 | Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, LH, RH); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7030 | break; |
| 7031 | } |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7032 | case ISD::FP_ROUND: |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7033 | case ISD::FPOWI: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7034 | SDValue L, H; |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7035 | SplitVectorOp(Node->getOperand(0), L, H); |
| 7036 | |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 7037 | Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L, Node->getOperand(1)); |
| 7038 | Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H, Node->getOperand(1)); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7039 | break; |
| 7040 | } |
| 7041 | case ISD::CTTZ: |
| 7042 | case ISD::CTLZ: |
| 7043 | case ISD::CTPOP: |
| 7044 | case ISD::FNEG: |
| 7045 | case ISD::FABS: |
| 7046 | case ISD::FSQRT: |
| 7047 | case ISD::FSIN: |
Nate Begeman | b348d18 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 7048 | case ISD::FCOS: |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 7049 | case ISD::FLOG: |
| 7050 | case ISD::FLOG2: |
| 7051 | case ISD::FLOG10: |
| 7052 | case ISD::FEXP: |
| 7053 | case ISD::FEXP2: |
Nate Begeman | b348d18 | 2007-11-17 03:58:34 +0000 | [diff] [blame] | 7054 | case ISD::FP_TO_SINT: |
| 7055 | case ISD::FP_TO_UINT: |
| 7056 | case ISD::SINT_TO_FP: |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7057 | case ISD::UINT_TO_FP: |
| 7058 | case ISD::TRUNCATE: |
| 7059 | case ISD::ANY_EXTEND: |
| 7060 | case ISD::SIGN_EXTEND: |
| 7061 | case ISD::ZERO_EXTEND: |
| 7062 | case ISD::FP_EXTEND: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7063 | SDValue L, H; |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7064 | SplitVectorOp(Node->getOperand(0), L, H); |
| 7065 | |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 7066 | Lo = DAG.getNode(Node->getOpcode(), NewVT_Lo, L); |
| 7067 | Hi = DAG.getNode(Node->getOpcode(), NewVT_Hi, H); |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7068 | break; |
| 7069 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7070 | case ISD::LOAD: { |
| 7071 | LoadSDNode *LD = cast<LoadSDNode>(Node); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7072 | SDValue Ch = LD->getChain(); |
| 7073 | SDValue Ptr = LD->getBasePtr(); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7074 | ISD::LoadExtType ExtType = LD->getExtensionType(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7075 | const Value *SV = LD->getSrcValue(); |
| 7076 | int SVOffset = LD->getSrcValueOffset(); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7077 | MVT MemoryVT = LD->getMemoryVT(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7078 | unsigned Alignment = LD->getAlignment(); |
| 7079 | bool isVolatile = LD->isVolatile(); |
| 7080 | |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7081 | assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); |
| 7082 | SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); |
| 7083 | |
| 7084 | MVT MemNewEltVT = MemoryVT.getVectorElementType(); |
| 7085 | MVT MemNewVT_Lo = MVT::getVectorVT(MemNewEltVT, NewNumElts_Lo); |
| 7086 | MVT MemNewVT_Hi = MVT::getVectorVT(MemNewEltVT, NewNumElts_Hi); |
| 7087 | |
| 7088 | Lo = DAG.getLoad(ISD::UNINDEXED, ExtType, |
| 7089 | NewVT_Lo, Ch, Ptr, Offset, |
| 7090 | SV, SVOffset, MemNewVT_Lo, isVolatile, Alignment); |
| 7091 | unsigned IncrementSize = NewNumElts_Lo * MemNewEltVT.getSizeInBits()/8; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7092 | Ptr = DAG.getNode(ISD::ADD, Ptr.getValueType(), Ptr, |
Chris Lattner | 0bd4893 | 2008-01-17 07:00:52 +0000 | [diff] [blame] | 7093 | DAG.getIntPtrConstant(IncrementSize)); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7094 | SVOffset += IncrementSize; |
Duncan Sands | dc84650 | 2007-10-28 12:59:45 +0000 | [diff] [blame] | 7095 | Alignment = MinAlign(Alignment, IncrementSize); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7096 | Hi = DAG.getLoad(ISD::UNINDEXED, ExtType, |
| 7097 | NewVT_Hi, Ch, Ptr, Offset, |
| 7098 | SV, SVOffset, MemNewVT_Hi, isVolatile, Alignment); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7099 | |
| 7100 | // Build a factor node to remember that this load is independent of the |
| 7101 | // other one. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7102 | SDValue TF = DAG.getNode(ISD::TokenFactor, MVT::Other, Lo.getValue(1), |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7103 | Hi.getValue(1)); |
| 7104 | |
| 7105 | // Remember that we legalized the chain. |
| 7106 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(TF)); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7107 | break; |
| 7108 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7109 | case ISD::BIT_CONVERT: { |
Chris Lattner | 7692eb4 | 2006-03-23 21:16:34 +0000 | [diff] [blame] | 7110 | // We know the result is a vector. The input may be either a vector or a |
| 7111 | // scalar value. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7112 | SDValue InOp = Node->getOperand(0); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 7113 | if (!InOp.getValueType().isVector() || |
| 7114 | InOp.getValueType().getVectorNumElements() == 1) { |
Dan Gohman | 10a7aa6 | 2007-06-29 00:09:08 +0000 | [diff] [blame] | 7115 | // The input is a scalar or single-element vector. |
| 7116 | // Lower to a store/load so that it can be split. |
| 7117 | // FIXME: this could be improved probably. |
Mon P Wang | 2920d2b | 2008-07-15 05:28:34 +0000 | [diff] [blame] | 7118 | unsigned LdAlign = TLI.getTargetData()->getPrefTypeAlignment( |
| 7119 | Op.getValueType().getTypeForMVT()); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7120 | SDValue Ptr = DAG.CreateStackTemporary(InOp.getValueType(), LdAlign); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 7121 | int FI = cast<FrameIndexSDNode>(Ptr.getNode())->getIndex(); |
Chris Lattner | 7692eb4 | 2006-03-23 21:16:34 +0000 | [diff] [blame] | 7122 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7123 | SDValue St = DAG.getStore(DAG.getEntryNode(), |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 7124 | InOp, Ptr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 7125 | PseudoSourceValue::getFixedStack(FI), 0); |
Dan Gohman | 69de193 | 2008-02-06 22:27:42 +0000 | [diff] [blame] | 7126 | InOp = DAG.getLoad(Op.getValueType(), St, Ptr, |
Dan Gohman | a54cf17 | 2008-07-11 22:44:52 +0000 | [diff] [blame] | 7127 | PseudoSourceValue::getFixedStack(FI), 0); |
Chris Lattner | 7692eb4 | 2006-03-23 21:16:34 +0000 | [diff] [blame] | 7128 | } |
Dan Gohman | 10a7aa6 | 2007-06-29 00:09:08 +0000 | [diff] [blame] | 7129 | // Split the vector and convert each of the pieces now. |
| 7130 | SplitVectorOp(InOp, Lo, Hi); |
Nate Begeman | 5db1afb | 2007-11-15 21:15:26 +0000 | [diff] [blame] | 7131 | Lo = DAG.getNode(ISD::BIT_CONVERT, NewVT_Lo, Lo); |
| 7132 | Hi = DAG.getNode(ISD::BIT_CONVERT, NewVT_Hi, Hi); |
Dan Gohman | 10a7aa6 | 2007-06-29 00:09:08 +0000 | [diff] [blame] | 7133 | break; |
Chris Lattner | 7692eb4 | 2006-03-23 21:16:34 +0000 | [diff] [blame] | 7134 | } |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7135 | } |
| 7136 | |
| 7137 | // Remember in a map if the values will be reused later. |
Chris Lattner | 40030bf | 2007-02-04 01:17:38 +0000 | [diff] [blame] | 7138 | bool isNew = |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7139 | SplitNodes.insert(std::make_pair(Op, std::make_pair(Lo, Hi))).second; |
Dan Gohman | 10a7aa6 | 2007-06-29 00:09:08 +0000 | [diff] [blame] | 7140 | assert(isNew && "Value already split?!?"); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7141 | } |
| 7142 | |
| 7143 | |
Dan Gohman | 89b20c0 | 2007-06-27 14:06:22 +0000 | [diff] [blame] | 7144 | /// ScalarizeVectorOp - Given an operand of single-element vector type |
| 7145 | /// (e.g. v1f32), convert it into the equivalent operation that returns a |
| 7146 | /// scalar (e.g. f32) value. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7147 | SDValue SelectionDAGLegalize::ScalarizeVectorOp(SDValue Op) { |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 7148 | assert(Op.getValueType().isVector() && "Bad ScalarizeVectorOp invocation!"); |
Gabor Greif | ba36cb5 | 2008-08-28 21:40:38 +0000 | [diff] [blame] | 7149 | SDNode *Node = Op.getNode(); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 7150 | MVT NewVT = Op.getValueType().getVectorElementType(); |
| 7151 | assert(Op.getValueType().getVectorNumElements() == 1); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7152 | |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7153 | // See if we already scalarized it. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7154 | std::map<SDValue, SDValue>::iterator I = ScalarizedNodes.find(Op); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7155 | if (I != ScalarizedNodes.end()) return I->second; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7156 | |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7157 | SDValue Result; |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7158 | switch (Node->getOpcode()) { |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 7159 | default: |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 7160 | #ifndef NDEBUG |
Dan Gohman | 3983358 | 2007-06-04 16:17:33 +0000 | [diff] [blame] | 7161 | Node->dump(&DAG); cerr << "\n"; |
Jim Laskey | e37fe9b | 2006-07-11 17:58:07 +0000 | [diff] [blame] | 7162 | #endif |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7163 | assert(0 && "Unknown vector operation in ScalarizeVectorOp!"); |
| 7164 | case ISD::ADD: |
| 7165 | case ISD::FADD: |
| 7166 | case ISD::SUB: |
| 7167 | case ISD::FSUB: |
| 7168 | case ISD::MUL: |
| 7169 | case ISD::FMUL: |
| 7170 | case ISD::SDIV: |
| 7171 | case ISD::UDIV: |
| 7172 | case ISD::FDIV: |
| 7173 | case ISD::SREM: |
| 7174 | case ISD::UREM: |
| 7175 | case ISD::FREM: |
Dan Gohman | 8266952 | 2007-10-11 23:57:53 +0000 | [diff] [blame] | 7176 | case ISD::FPOW: |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7177 | case ISD::AND: |
| 7178 | case ISD::OR: |
| 7179 | case ISD::XOR: |
| 7180 | Result = DAG.getNode(Node->getOpcode(), |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7181 | NewVT, |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7182 | ScalarizeVectorOp(Node->getOperand(0)), |
| 7183 | ScalarizeVectorOp(Node->getOperand(1))); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7184 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7185 | case ISD::FNEG: |
| 7186 | case ISD::FABS: |
| 7187 | case ISD::FSQRT: |
| 7188 | case ISD::FSIN: |
| 7189 | case ISD::FCOS: |
Dale Johannesen | 7794f2a | 2008-09-04 00:47:13 +0000 | [diff] [blame] | 7190 | case ISD::FLOG: |
| 7191 | case ISD::FLOG2: |
| 7192 | case ISD::FLOG10: |
| 7193 | case ISD::FEXP: |
| 7194 | case ISD::FEXP2: |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7195 | case ISD::FP_TO_SINT: |
| 7196 | case ISD::FP_TO_UINT: |
| 7197 | case ISD::SINT_TO_FP: |
| 7198 | case ISD::UINT_TO_FP: |
| 7199 | case ISD::SIGN_EXTEND: |
| 7200 | case ISD::ZERO_EXTEND: |
| 7201 | case ISD::ANY_EXTEND: |
| 7202 | case ISD::TRUNCATE: |
| 7203 | case ISD::FP_EXTEND: |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7204 | Result = DAG.getNode(Node->getOpcode(), |
| 7205 | NewVT, |
| 7206 | ScalarizeVectorOp(Node->getOperand(0))); |
| 7207 | break; |
Dan Gohman | 9e04c82 | 2007-10-12 14:13:46 +0000 | [diff] [blame] | 7208 | case ISD::FPOWI: |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7209 | case ISD::FP_ROUND: |
Dan Gohman | 9e04c82 | 2007-10-12 14:13:46 +0000 | [diff] [blame] | 7210 | Result = DAG.getNode(Node->getOpcode(), |
| 7211 | NewVT, |
| 7212 | ScalarizeVectorOp(Node->getOperand(0)), |
| 7213 | Node->getOperand(1)); |
| 7214 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7215 | case ISD::LOAD: { |
| 7216 | LoadSDNode *LD = cast<LoadSDNode>(Node); |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7217 | SDValue Ch = LegalizeOp(LD->getChain()); // Legalize the chain. |
| 7218 | SDValue Ptr = LegalizeOp(LD->getBasePtr()); // Legalize the pointer. |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7219 | ISD::LoadExtType ExtType = LD->getExtensionType(); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7220 | const Value *SV = LD->getSrcValue(); |
| 7221 | int SVOffset = LD->getSrcValueOffset(); |
Dan Gohman | 7f8613e | 2008-08-14 20:04:46 +0000 | [diff] [blame] | 7222 | MVT MemoryVT = LD->getMemoryVT(); |
| 7223 | unsigned Alignment = LD->getAlignment(); |
| 7224 | bool isVolatile = LD->isVolatile(); |
| 7225 | |
| 7226 | assert(LD->isUnindexed() && "Indexed vector loads are not supported yet!"); |
| 7227 | SDValue Offset = DAG.getNode(ISD::UNDEF, Ptr.getValueType()); |
| 7228 | |
| 7229 | Result = DAG.getLoad(ISD::UNINDEXED, ExtType, |
| 7230 | NewVT, Ch, Ptr, Offset, SV, SVOffset, |
| 7231 | MemoryVT.getVectorElementType(), |
| 7232 | isVolatile, Alignment); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7233 | |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7234 | // Remember that we legalized the chain. |
| 7235 | AddLegalizedOperand(Op.getValue(1), LegalizeOp(Result.getValue(1))); |
| 7236 | break; |
| 7237 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7238 | case ISD::BUILD_VECTOR: |
| 7239 | Result = Node->getOperand(0); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7240 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7241 | case ISD::INSERT_VECTOR_ELT: |
| 7242 | // Returning the inserted scalar element. |
| 7243 | Result = Node->getOperand(1); |
| 7244 | break; |
| 7245 | case ISD::CONCAT_VECTORS: |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 7246 | assert(Node->getOperand(0).getValueType() == NewVT && |
| 7247 | "Concat of non-legal vectors not yet supported!"); |
| 7248 | Result = Node->getOperand(0); |
| 7249 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7250 | case ISD::VECTOR_SHUFFLE: { |
| 7251 | // Figure out if the scalar is the LHS or RHS and return it. |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7252 | SDValue EltNum = Node->getOperand(2).getOperand(0); |
Dan Gohman | f5aeb1a | 2008-09-12 16:56:44 +0000 | [diff] [blame] | 7253 | if (cast<ConstantSDNode>(EltNum)->getZExtValue()) |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7254 | Result = ScalarizeVectorOp(Node->getOperand(1)); |
| 7255 | else |
| 7256 | Result = ScalarizeVectorOp(Node->getOperand(0)); |
Chris Lattner | 2332b9f | 2006-03-19 01:17:20 +0000 | [diff] [blame] | 7257 | break; |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7258 | } |
| 7259 | case ISD::EXTRACT_SUBVECTOR: |
| 7260 | Result = Node->getOperand(0); |
Dan Gohman | 6595635 | 2007-06-13 15:12:02 +0000 | [diff] [blame] | 7261 | assert(Result.getValueType() == NewVT); |
| 7262 | break; |
Evan Cheng | 446efdd | 2008-05-16 17:19:05 +0000 | [diff] [blame] | 7263 | case ISD::BIT_CONVERT: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7264 | SDValue Op0 = Op.getOperand(0); |
Duncan Sands | 83ec4b6 | 2008-06-06 12:08:01 +0000 | [diff] [blame] | 7265 | if (Op0.getValueType().getVectorNumElements() == 1) |
Evan Cheng | 446efdd | 2008-05-16 17:19:05 +0000 | [diff] [blame] | 7266 | Op0 = ScalarizeVectorOp(Op0); |
| 7267 | Result = DAG.getNode(ISD::BIT_CONVERT, NewVT, Op0); |
Chris Lattner | 5b2316e | 2006-03-28 20:24:43 +0000 | [diff] [blame] | 7268 | break; |
Evan Cheng | 446efdd | 2008-05-16 17:19:05 +0000 | [diff] [blame] | 7269 | } |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7270 | case ISD::SELECT: |
Chris Lattner | b22e35a | 2006-04-08 22:22:57 +0000 | [diff] [blame] | 7271 | Result = DAG.getNode(ISD::SELECT, NewVT, Op.getOperand(0), |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7272 | ScalarizeVectorOp(Op.getOperand(1)), |
| 7273 | ScalarizeVectorOp(Op.getOperand(2))); |
Chris Lattner | b22e35a | 2006-04-08 22:22:57 +0000 | [diff] [blame] | 7274 | break; |
Chris Lattner | 80c1a56 | 2008-06-30 02:43:01 +0000 | [diff] [blame] | 7275 | case ISD::SELECT_CC: |
| 7276 | Result = DAG.getNode(ISD::SELECT_CC, NewVT, Node->getOperand(0), |
| 7277 | Node->getOperand(1), |
| 7278 | ScalarizeVectorOp(Op.getOperand(2)), |
| 7279 | ScalarizeVectorOp(Op.getOperand(3)), |
| 7280 | Node->getOperand(4)); |
| 7281 | break; |
Nate Begeman | 0d1704b | 2008-05-12 23:09:43 +0000 | [diff] [blame] | 7282 | case ISD::VSETCC: { |
Dan Gohman | 475871a | 2008-07-27 21:46:04 +0000 | [diff] [blame] | 7283 | SDValue Op0 = ScalarizeVectorOp(Op.getOperand(0)); |
| 7284 | SDValue Op1 = ScalarizeVectorOp(Op.getOperand(1)); |
Nate Begeman | 0d1704b | 2008-05-12 23:09:43 +0000 | [diff] [blame] | 7285 | Result = DAG.getNode(ISD::SETCC, TLI.getSetCCResultType(Op0), Op0, Op1, |
| 7286 | Op.getOperand(2)); |
| 7287 | Result = DAG.getNode(ISD::SELECT, NewVT, Result, |
| 7288 | DAG.getConstant(-1ULL, NewVT), |
| 7289 | DAG.getConstant(0ULL, NewVT)); |
| 7290 | break; |
| 7291 | } |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7292 | } |
| 7293 | |
| 7294 | if (TLI.isTypeLegal(NewVT)) |
| 7295 | Result = LegalizeOp(Result); |
Dan Gohman | 7f32156 | 2007-06-25 16:23:39 +0000 | [diff] [blame] | 7296 | bool isNew = ScalarizedNodes.insert(std::make_pair(Op, Result)).second; |
| 7297 | assert(isNew && "Value already scalarized?"); |
Chris Lattner | c702980 | 2006-03-18 01:44:44 +0000 | [diff] [blame] | 7298 | return Result; |
| 7299 | } |
| 7300 | |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 7301 | |
| 7302 | // SelectionDAG::Legalize - This is the entry point for the file. |
| 7303 | // |
Chris Lattner | 9c32d3b | 2005-01-23 04:42:50 +0000 | [diff] [blame] | 7304 | void SelectionDAG::Legalize() { |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 7305 | /// run - This is the main entry point to this class. |
| 7306 | /// |
Chris Lattner | 456a93a | 2006-01-28 07:39:30 +0000 | [diff] [blame] | 7307 | SelectionDAGLegalize(*this).LegalizeDAG(); |
Chris Lattner | 3e928bb | 2005-01-07 07:47:09 +0000 | [diff] [blame] | 7308 | } |
| 7309 | |