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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 35b2de012d9404e3e9e4373e45f41711f752dd3a / . / lib / Target / ARM / ARMISelLowering.h
blob: 8504b83d2432055fdb5808221dba0fd8f48c0827 [file] [log] [blame]
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]1//===-- ARMISelLowering.h - ARM DAG Lowering Interface ----------*- C++ -*-===//
2//
3// The LLVM Compiler Infrastructure
4//
Chris Lattner4ee451d2007-12-29 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.
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]7//
8//===----------------------------------------------------------------------===//
9//
10// This file defines the interfaces that ARM uses to lower LLVM code into a
11// selection DAG.
12//
13//===----------------------------------------------------------------------===//
14
15#ifndef ARMISELLOWERING_H
16#define ARMISELLOWERING_H
17
Rafael Espindolaf1ba1ca2007-11-05 23:12:20 +0000[diff] [blame]18#include "ARMSubtarget.h"
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]19#include "llvm/Target/TargetLowering.h"
Evan Cheng31446872010-07-23 22:39:59 +0000[diff] [blame]20#include "llvm/Target/TargetRegisterInfo.h"
Eric Christopherab695882010-07-21 22:26:11 +0000[diff] [blame]21#include "llvm/CodeGen/FastISel.h"
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]22#include "llvm/CodeGen/SelectionDAG.h"
Bob Wilson1f595bb2009-04-17 19:07:39 +0000[diff] [blame]23#include "llvm/CodeGen/CallingConvLower.h"
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]24#include <vector>
25
26namespace llvm {
27 class ARMConstantPoolValue;
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]28
29 namespace ARMISD {
30 // ARM Specific DAG Nodes
31 enum NodeType {
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]32 // Start the numbering where the builtin ops and target ops leave off.
Dan Gohman0ba2bcf2008-09-23 18:42:32 +0000[diff] [blame]33 FIRST_NUMBER = ISD::BUILTIN_OP_END,
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]34
35 Wrapper, // Wrapper - A wrapper node for TargetConstantPool,
36 // TargetExternalSymbol, and TargetGlobalAddress.
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]37 WrapperJT, // WrapperJT - A wrapper node for TargetJumpTable
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]38
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]39 CALL, // Function call.
Evan Cheng277f0742007-06-19 21:05:09 +0000[diff] [blame]40 CALL_PRED, // Function call that's predicable.
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]41 CALL_NOLINK, // Function call with branch not branch-and-link.
42 tCALL, // Thumb function call.
43 BRCOND, // Conditional branch.
44 BR_JT, // Jumptable branch.
Evan Cheng5657c012009-07-29 02:18:14 +0000[diff] [blame]45 BR2_JT, // Jumptable branch (2 level - jumptable entry is a jump).
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]46 RET_FLAG, // Return with a flag operand.
47
48 PIC_ADD, // Add with a PC operand and a PIC label.
49
50 CMP, // ARM compare instructions.
David Goodwinc0309b42009-06-29 15:33:01 +0000[diff] [blame]51 CMPZ, // ARM compare that sets only Z flag.
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]52 CMPFP, // ARM VFP compare instruction, sets FPSCR.
53 CMPFPw0, // ARM VFP compare against zero instruction, sets FPSCR.
54 FMSTAT, // ARM fmstat instruction.
55 CMOV, // ARM conditional move instructions.
56 CNEG, // ARM conditional negate instructions.
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]57
Evan Cheng218977b2010-07-13 19:27:42 +0000[diff] [blame]58 BCC_i64,
59
Jim Grosbach3482c802010-01-18 19:58:49 +0000[diff] [blame]60 RBIT, // ARM bitreverse instruction
61
Bob Wilson76a312b2010-03-19 22:51:32 +0000[diff] [blame]62 FTOSI, // FP to sint within a FP register.
63 FTOUI, // FP to uint within a FP register.
64 SITOF, // sint to FP within a FP register.
65 UITOF, // uint to FP within a FP register.
66
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]67 SRL_FLAG, // V,Flag = srl_flag X -> srl X, 1 + save carry out.
68 SRA_FLAG, // V,Flag = sra_flag X -> sra X, 1 + save carry out.
69 RRX, // V = RRX X, Flag -> srl X, 1 + shift in carry flag.
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]70
Jim Grosbache5165492009-11-09 00:11:35 +0000[diff] [blame]71 VMOVRRD, // double to two gprs.
72 VMOVDRR, // Two gprs to double.
Lauro Ramos Venancio64f4fa52007-04-27 13:54:47 +0000[diff] [blame]73
Jim Grosbache4ad3872010-10-19 23:27:08 +0000[diff] [blame]74 EH_SJLJ_SETJMP, // SjLj exception handling setjmp.
75 EH_SJLJ_LONGJMP, // SjLj exception handling longjmp.
76 EH_SJLJ_DISPATCHSETUP, // SjLj exception handling dispatch setup.
Jim Grosbach0e0da732009-05-12 23:59:14 +0000[diff] [blame]77
Dale Johannesen51e28e62010-06-03 21:09:53 +0000[diff] [blame]78 TC_RETURN, // Tail call return pseudo.
79
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]80 THREAD_POINTER,
81
Evan Cheng86198642009-08-07 00:34:42 +0000[diff] [blame]82 DYN_ALLOC, // Dynamic allocation on the stack.
83
Bob Wilsonf74a4292010-10-30 00:54:37 +0000[diff] [blame]84 MEMBARRIER, // Memory barrier (DMB)
85 MEMBARRIER_MCR, // Memory barrier (MCR)
Evan Chengdfed19f2010-11-03 06:34:55 +0000[diff] [blame]86
87 PRELOAD, // Preload
Nate Begemand1fb5832010-08-03 21:31:55 +0000[diff] [blame]88
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]89 VCEQ, // Vector compare equal.
90 VCGE, // Vector compare greater than or equal.
91 VCGEU, // Vector compare unsigned greater than or equal.
92 VCGT, // Vector compare greater than.
93 VCGTU, // Vector compare unsigned greater than.
94 VTST, // Vector test bits.
95
96 // Vector shift by immediate:
97 VSHL, // ...left
98 VSHRs, // ...right (signed)
99 VSHRu, // ...right (unsigned)
100 VSHLLs, // ...left long (signed)
101 VSHLLu, // ...left long (unsigned)
102 VSHLLi, // ...left long (with maximum shift count)
103 VSHRN, // ...right narrow
104
105 // Vector rounding shift by immediate:
106 VRSHRs, // ...right (signed)
107 VRSHRu, // ...right (unsigned)
108 VRSHRN, // ...right narrow
109
110 // Vector saturating shift by immediate:
111 VQSHLs, // ...left (signed)
112 VQSHLu, // ...left (unsigned)
113 VQSHLsu, // ...left (signed to unsigned)
114 VQSHRNs, // ...right narrow (signed)
115 VQSHRNu, // ...right narrow (unsigned)
116 VQSHRNsu, // ...right narrow (signed to unsigned)
117
118 // Vector saturating rounding shift by immediate:
119 VQRSHRNs, // ...right narrow (signed)
120 VQRSHRNu, // ...right narrow (unsigned)
121 VQRSHRNsu, // ...right narrow (signed to unsigned)
122
123 // Vector shift and insert:
124 VSLI, // ...left
125 VSRI, // ...right
126
127 // Vector get lane (VMOV scalar to ARM core register)
128 // (These are used for 8- and 16-bit element types only.)
129 VGETLANEu, // zero-extend vector extract element
130 VGETLANEs, // sign-extend vector extract element
131
Bob Wilson7e3f0d22010-07-14 06:31:50 +0000[diff] [blame]132 // Vector move immediate and move negated immediate:
Bob Wilsoncba270d2010-07-13 21:16:48 +0000[diff] [blame]133 VMOVIMM,
Bob Wilson7e3f0d22010-07-14 06:31:50 +0000[diff] [blame]134 VMVNIMM,
135
136 // Vector duplicate:
Bob Wilsonc1d287b2009-08-14 05:13:08 +0000[diff] [blame]137 VDUP,
Bob Wilson0ce37102009-08-14 05:08:32 +0000[diff] [blame]138 VDUPLANE,
Bob Wilsona599bff2009-08-04 00:36:16 +0000[diff] [blame]139
Bob Wilsond8e17572009-08-12 22:31:50 +0000[diff] [blame]140 // Vector shuffles:
Bob Wilsonde95c1b82009-08-19 17:03:43 +0000[diff] [blame]141 VEXT, // extract
Bob Wilsond8e17572009-08-12 22:31:50 +0000[diff] [blame]142 VREV64, // reverse elements within 64-bit doublewords
143 VREV32, // reverse elements within 32-bit words
Anton Korobeynikov1c8e5812009-08-21 12:41:24 +0000[diff] [blame]144 VREV16, // reverse elements within 16-bit halfwords
Bob Wilsonc692cb72009-08-21 20:54:19 +0000[diff] [blame]145 VZIP, // zip (interleave)
146 VUZP, // unzip (deinterleave)
Bob Wilson9f6c4c12010-02-18 06:05:53 +0000[diff] [blame]147 VTRN, // transpose
148
Bob Wilsond0b69cf2010-09-01 23:50:19 +0000[diff] [blame]149 // Vector multiply long:
150 VMULLs, // ...signed
151 VMULLu, // ...unsigned
152
Bob Wilson40cbe7d2010-06-04 00:04:02 +0000[diff] [blame]153 // Operands of the standard BUILD_VECTOR node are not legalized, which
154 // is fine if BUILD_VECTORs are always lowered to shuffles or other
155 // operations, but for ARM some BUILD_VECTORs are legal as-is and their
156 // operands need to be legalized. Define an ARM-specific version of
157 // BUILD_VECTOR for this purpose.
158 BUILD_VECTOR,
159
Bob Wilson9f6c4c12010-02-18 06:05:53 +0000[diff] [blame]160 // Floating-point max and min:
161 FMAX,
Jim Grosbach469bbdb2010-07-16 23:05:05 +0000[diff] [blame]162 FMIN,
163
164 // Bit-field insert
165 BFI
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]166 };
167 }
168
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]169 /// Define some predicates that are used for node matching.
170 namespace ARM {
Evan Cheng39382422009-10-28 01:44:26 +0000[diff] [blame]171 /// getVFPf32Imm / getVFPf64Imm - If the given fp immediate can be
172 /// materialized with a VMOV.f32 / VMOV.f64 (i.e. fconsts / fconstd)
173 /// instruction, returns its 8-bit integer representation. Otherwise,
174 /// returns -1.
175 int getVFPf32Imm(const APFloat &FPImm);
176 int getVFPf64Imm(const APFloat &FPImm);
Jim Grosbach469bbdb2010-07-16 23:05:05 +0000[diff] [blame]177 bool isBitFieldInvertedMask(unsigned v);
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]178 }
179
Bob Wilson261f2a22009-05-20 16:30:25 +0000[diff] [blame]180 //===--------------------------------------------------------------------===//
Dale Johannesen80dae192007-03-20 00:30:56 +0000[diff] [blame]181 // ARMTargetLowering - ARM Implementation of the TargetLowering interface
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]182
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]183 class ARMTargetLowering : public TargetLowering {
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]184 public:
Dan Gohman61e729e2007-08-02 21:21:54 +0000[diff] [blame]185 explicit ARMTargetLowering(TargetMachine &TM);
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]186
Jim Grosbache1102ca2010-07-19 17:20:38 +0000[diff] [blame]187 virtual unsigned getJumpTableEncoding(void) const;
188
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]189 virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
Duncan Sands1607f052008-12-01 11:39:25 +0000[diff] [blame]190
191 /// ReplaceNodeResults - Replace the results of node with an illegal result
192 /// type with new values built out of custom code.
193 ///
194 virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]195 SelectionDAG &DAG) const;
Duncan Sands1607f052008-12-01 11:39:25 +0000[diff] [blame]196
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]197 virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]198
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]199 virtual const char *getTargetNodeName(unsigned Opcode) const;
200
Dan Gohmanaf1d8ca2010-05-01 00:01:06 +0000[diff] [blame]201 virtual MachineBasicBlock *
202 EmitInstrWithCustomInserter(MachineInstr *MI,
203 MachineBasicBlock *MBB) const;
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]204
Bill Wendlingaf566342009-08-15 21:21:19 +0000[diff] [blame]205 /// allowsUnalignedMemoryAccesses - Returns true if the target allows
206 /// unaligned memory accesses. of the specified type.
207 /// FIXME: Add getOptimalMemOpType to implement memcpy with NEON?
208 virtual bool allowsUnalignedMemoryAccesses(EVT VT) const;
209
Chris Lattnerc9addb72007-03-30 23:15:24 +0000[diff] [blame]210 /// isLegalAddressingMode - Return true if the addressing mode represented
211 /// by AM is legal for this target, for a load/store of the specified type.
212 virtual bool isLegalAddressingMode(const AddrMode &AM, const Type *Ty)const;
Evan Chenge6c835f2009-08-14 20:09:37 +0000[diff] [blame]213 bool isLegalT2ScaledAddressingMode(const AddrMode &AM, EVT VT) const;
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]214
Evan Cheng77e47512009-11-11 19:05:52 +0000[diff] [blame]215 /// isLegalICmpImmediate - Return true if the specified immediate is legal
Jim Grosbach18f30e62010-06-02 21:53:11 +0000[diff] [blame]216 /// icmp immediate, that is the target has icmp instructions which can
217 /// compare a register against the immediate without having to materialize
218 /// the immediate into a register.
Evan Cheng06b53c02009-11-12 07:13:11 +0000[diff] [blame]219 virtual bool isLegalICmpImmediate(int64_t Imm) const;
Evan Cheng77e47512009-11-11 19:05:52 +0000[diff] [blame]220
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]221 /// getPreIndexedAddressParts - returns true by value, base pointer and
222 /// offset pointer and addressing mode by reference if the node's address
223 /// can be legally represented as pre-indexed load / store address.
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]224 virtual bool getPreIndexedAddressParts(SDNode *N, SDValue &Base,
225 SDValue &Offset,
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]226 ISD::MemIndexedMode &AM,
Dan Gohman73e09142009-01-15 16:29:45 +0000[diff] [blame]227 SelectionDAG &DAG) const;
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]228
229 /// getPostIndexedAddressParts - returns true by value, base pointer and
230 /// offset pointer and addressing mode by reference if this node can be
231 /// combined with a load / store to form a post-indexed load / store.
232 virtual bool getPostIndexedAddressParts(SDNode *N, SDNode *Op,
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]233 SDValue &Base, SDValue &Offset,
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]234 ISD::MemIndexedMode &AM,
Dan Gohman73e09142009-01-15 16:29:45 +0000[diff] [blame]235 SelectionDAG &DAG) const;
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]236
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]237 virtual void computeMaskedBitsForTargetNode(const SDValue Op,
Dan Gohman977a76f2008-02-13 22:28:48 +0000[diff] [blame]238 const APInt &Mask,
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]239 APInt &KnownZero,
Dan Gohmanfd29e0e2008-02-13 00:35:47 +0000[diff] [blame]240 APInt &KnownOne,
Dan Gohmanea859be2007-06-22 14:59:07 +0000[diff] [blame]241 const SelectionDAG &DAG,
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]242 unsigned Depth) const;
Bill Wendlingaf566342009-08-15 21:21:19 +0000[diff] [blame]243
244
Chris Lattner4234f572007-03-25 02:14:49 +0000[diff] [blame]245 ConstraintType getConstraintType(const std::string &Constraint) const;
John Thompson44ab89e2010-10-29 17:29:13 +0000[diff] [blame]246
247 /// Examine constraint string and operand type and determine a weight value.
248 /// The operand object must already have been set up with the operand type.
249 ConstraintWeight getSingleConstraintMatchWeight(
250 AsmOperandInfo &info, const char *constraint) const;
251
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]252 std::pair<unsigned, const TargetRegisterClass*>
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]253 getRegForInlineAsmConstraint(const std::string &Constraint,
Owen Andersone50ed302009-08-10 22:56:29 +0000[diff] [blame]254 EVT VT) const;
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]255 std::vector<unsigned>
256 getRegClassForInlineAsmConstraint(const std::string &Constraint,
Owen Andersone50ed302009-08-10 22:56:29 +0000[diff] [blame]257 EVT VT) const;
Rafael Espindolaf1ba1ca2007-11-05 23:12:20 +0000[diff] [blame]258
Bob Wilsonbf6396b2009-04-01 17:58:54 +0000[diff] [blame]259 /// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
260 /// vector. If it is invalid, don't add anything to Ops. If hasMemory is
261 /// true it means one of the asm constraint of the inline asm instruction
262 /// being processed is 'm'.
263 virtual void LowerAsmOperandForConstraint(SDValue Op,
264 char ConstraintLetter,
Bob Wilsonbf6396b2009-04-01 17:58:54 +0000[diff] [blame]265 std::vector<SDValue> &Ops,
266 SelectionDAG &DAG) const;
Jim Grosbach6aa71972009-05-13 22:32:43 +0000[diff] [blame]267
Dan Gohman419e4f92010-05-11 16:21:03 +0000[diff] [blame]268 const ARMSubtarget* getSubtarget() const {
Dan Gohman707e0182008-04-12 04:36:06 +0000[diff] [blame]269 return Subtarget;
Rafael Espindolaf1ba1ca2007-11-05 23:12:20 +0000[diff] [blame]270 }
271
Evan Cheng06b666c2010-05-15 02:18:07 +0000[diff] [blame]272 /// getRegClassFor - Return the register class that should be used for the
273 /// specified value type.
274 virtual TargetRegisterClass *getRegClassFor(EVT VT) const;
275
Bill Wendlingb4202b82009-07-01 18:50:55 +0000[diff] [blame]276 /// getFunctionAlignment - Return the Log2 alignment of this function.
Bill Wendling20c568f2009-06-30 22:38:32 +0000[diff] [blame]277 virtual unsigned getFunctionAlignment(const Function *F) const;
278
Anton Korobeynikovcec36f42010-07-24 21:52:08 +0000[diff] [blame]279 /// getMaximalGlobalOffset - Returns the maximal possible offset which can
280 /// be used for loads / stores from the global.
281 virtual unsigned getMaximalGlobalOffset() const;
282
Eric Christopherab695882010-07-21 22:26:11 +0000[diff] [blame]283 /// createFastISel - This method returns a target specific FastISel object,
284 /// or null if the target does not support "fast" ISel.
285 virtual FastISel *createFastISel(FunctionLoweringInfo &funcInfo) const;
286
Evan Cheng1cc39842010-05-20 23:26:43 +0000[diff] [blame]287 Sched::Preference getSchedulingPreference(SDNode *N) const;
288
Evan Cheng31446872010-07-23 22:39:59 +0000[diff] [blame]289 unsigned getRegPressureLimit(const TargetRegisterClass *RC,
290 MachineFunction &MF) const;
291
Anton Korobeynikovd0ac2342009-08-21 12:40:07 +0000[diff] [blame]292 bool isShuffleMaskLegal(const SmallVectorImpl<int> &M, EVT VT) const;
Anton Korobeynikov48e19352009-09-23 19:04:09 +0000[diff] [blame]293 bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
Evan Cheng39382422009-10-28 01:44:26 +0000[diff] [blame]294
295 /// isFPImmLegal - Returns true if the target can instruction select the
296 /// specified FP immediate natively. If false, the legalizer will
297 /// materialize the FP immediate as a load from a constant pool.
298 virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
299
Bob Wilson65ffec42010-09-21 17:56:22 +0000[diff] [blame]300 virtual bool getTgtMemIntrinsic(IntrinsicInfo &Info,
301 const CallInst &I,
302 unsigned Intrinsic) const;
Evan Chengd70f57b2010-07-19 22:15:08 +0000[diff] [blame]303 protected:
Evan Cheng4f6b4672010-07-21 06:09:07 +0000[diff] [blame]304 std::pair<const TargetRegisterClass*, uint8_t>
305 findRepresentativeClass(EVT VT) const;
Evan Chengd70f57b2010-07-19 22:15:08 +0000[diff] [blame]306
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]307 private:
308 /// Subtarget - Keep a pointer to the ARMSubtarget around so that we can
309 /// make the right decision when generating code for different targets.
310 const ARMSubtarget *Subtarget;
311
Evan Cheng31446872010-07-23 22:39:59 +0000[diff] [blame]312 const TargetRegisterInfo *RegInfo;
313
Evan Cheng3ef1c872010-09-10 01:29:16 +0000[diff] [blame]314 const InstrItineraryData *Itins;
315
Bob Wilsond2559bf2009-07-13 18:11:36 +0000[diff] [blame]316 /// ARMPCLabelIndex - Keep track of the number of ARM PC labels created.
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]317 ///
318 unsigned ARMPCLabelIndex;
319
Owen Andersone50ed302009-08-10 22:56:29 +0000[diff] [blame]320 void addTypeForNEON(EVT VT, EVT PromotedLdStVT, EVT PromotedBitwiseVT);
321 void addDRTypeForNEON(EVT VT);
322 void addQRTypeForNEON(EVT VT);
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]323
324 typedef SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPassVector;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]325 void PassF64ArgInRegs(DebugLoc dl, SelectionDAG &DAG,
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]326 SDValue Chain, SDValue &Arg,
327 RegsToPassVector &RegsToPass,
328 CCValAssign &VA, CCValAssign &NextVA,
329 SDValue &StackPtr,
330 SmallVector<SDValue, 8> &MemOpChains,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]331 ISD::ArgFlagsTy Flags) const;
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]332 SDValue GetF64FormalArgument(CCValAssign &VA, CCValAssign &NextVA,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]333 SDValue &Root, SelectionDAG &DAG,
334 DebugLoc dl) const;
Bob Wilson5bafff32009-06-22 23:27:02 +0000[diff] [blame]335
Jim Grosbach18f30e62010-06-02 21:53:11 +0000[diff] [blame]336 CCAssignFn *CCAssignFnForNode(CallingConv::ID CC, bool Return,
337 bool isVarArg) const;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]338 SDValue LowerMemOpCallTo(SDValue Chain, SDValue StackPtr, SDValue Arg,
339 DebugLoc dl, SelectionDAG &DAG,
340 const CCValAssign &VA,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]341 ISD::ArgFlagsTy Flags) const;
Jim Grosbach23ff7cf2010-05-26 20:22:18 +0000[diff] [blame]342 SDValue LowerEH_SJLJ_SETJMP(SDValue Op, SelectionDAG &DAG) const;
Jim Grosbach5eb19512010-05-22 01:06:18 +0000[diff] [blame]343 SDValue LowerEH_SJLJ_LONGJMP(SDValue Op, SelectionDAG &DAG) const;
Jim Grosbache4ad3872010-10-19 23:27:08 +0000[diff] [blame]344 SDValue LowerEH_SJLJ_DISPATCHSETUP(SDValue Op, SelectionDAG &DAG) const;
Jim Grosbacha87ded22010-02-08 23:22:00 +0000[diff] [blame]345 SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]346 const ARMSubtarget *Subtarget) const;
347 SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
348 SDValue LowerGlobalAddressDarwin(SDValue Op, SelectionDAG &DAG) const;
349 SDValue LowerGlobalAddressELF(SDValue Op, SelectionDAG &DAG) const;
350 SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]351 SDValue LowerToTLSGeneralDynamicModel(GlobalAddressSDNode *GA,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]352 SelectionDAG &DAG) const;
Dan Gohman475871a2008-07-27 21:46:04 +0000[diff] [blame]353 SDValue LowerToTLSExecModels(GlobalAddressSDNode *GA,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]354 SelectionDAG &DAG) const;
355 SDValue LowerGLOBAL_OFFSET_TABLE(SDValue Op, SelectionDAG &DAG) const;
356 SDValue LowerBR_JT(SDValue Op, SelectionDAG &DAG) const;
Bill Wendlingde2b1512010-08-11 08:43:16 +0000[diff] [blame]357 SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const;
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]358 SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
359 SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG) const;
Evan Cheng515fe3a2010-07-08 02:08:50 +0000[diff] [blame]360 SDValue LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const;
Evan Cheng2457f2c2010-05-22 01:47:14 +0000[diff] [blame]361 SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]362 SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]363 SDValue LowerShiftRightParts(SDValue Op, SelectionDAG &DAG) const;
364 SDValue LowerShiftLeftParts(SDValue Op, SelectionDAG &DAG) const;
Nate Begemand1fb5832010-08-03 21:31:55 +0000[diff] [blame]365 SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG) const;
Rafael Espindola7b73a5d2007-10-19 14:35:17 +0000[diff] [blame]366
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]367 SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
Sandeep Patel65c3c8f2009-09-02 08:44:58 +0000[diff] [blame]368 CallingConv::ID CallConv, bool isVarArg,
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]369 const SmallVectorImpl<ISD::InputArg> &Ins,
370 DebugLoc dl, SelectionDAG &DAG,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]371 SmallVectorImpl<SDValue> &InVals) const;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]372
373 virtual SDValue
374 LowerFormalArguments(SDValue Chain,
Sandeep Patel65c3c8f2009-09-02 08:44:58 +0000[diff] [blame]375 CallingConv::ID CallConv, bool isVarArg,
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]376 const SmallVectorImpl<ISD::InputArg> &Ins,
377 DebugLoc dl, SelectionDAG &DAG,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]378 SmallVectorImpl<SDValue> &InVals) const;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]379
380 virtual SDValue
Evan Cheng022d9e12010-02-02 23:55:14 +0000[diff] [blame]381 LowerCall(SDValue Chain, SDValue Callee,
Sandeep Patel65c3c8f2009-09-02 08:44:58 +0000[diff] [blame]382 CallingConv::ID CallConv, bool isVarArg,
Evan Cheng0c439eb2010-01-27 00:07:07 +0000[diff] [blame]383 bool &isTailCall,
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]384 const SmallVectorImpl<ISD::OutputArg> &Outs,
Dan Gohmanc9403652010-07-07 15:54:55 +0000[diff] [blame]385 const SmallVectorImpl<SDValue> &OutVals,
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]386 const SmallVectorImpl<ISD::InputArg> &Ins,
387 DebugLoc dl, SelectionDAG &DAG,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]388 SmallVectorImpl<SDValue> &InVals) const;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]389
Dale Johannesen51e28e62010-06-03 21:09:53 +0000[diff] [blame]390 /// IsEligibleForTailCallOptimization - Check whether the call is eligible
391 /// for tail call optimization. Targets which want to do tail call
392 /// optimization should implement this function.
393 bool IsEligibleForTailCallOptimization(SDValue Callee,
394 CallingConv::ID CalleeCC,
395 bool isVarArg,
396 bool isCalleeStructRet,
397 bool isCallerStructRet,
398 const SmallVectorImpl<ISD::OutputArg> &Outs,
Dan Gohmanc9403652010-07-07 15:54:55 +0000[diff] [blame]399 const SmallVectorImpl<SDValue> &OutVals,
Dale Johannesen51e28e62010-06-03 21:09:53 +0000[diff] [blame]400 const SmallVectorImpl<ISD::InputArg> &Ins,
401 SelectionDAG& DAG) const;
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]402 virtual SDValue
403 LowerReturn(SDValue Chain,
Sandeep Patel65c3c8f2009-09-02 08:44:58 +0000[diff] [blame]404 CallingConv::ID CallConv, bool isVarArg,
Dan Gohman98ca4f22009-08-05 01:29:28 +0000[diff] [blame]405 const SmallVectorImpl<ISD::OutputArg> &Outs,
Dan Gohmanc9403652010-07-07 15:54:55 +0000[diff] [blame]406 const SmallVectorImpl<SDValue> &OutVals,
Dan Gohmand858e902010-04-17 15:26:15 +0000[diff] [blame]407 DebugLoc dl, SelectionDAG &DAG) const;
Evan Cheng06b53c02009-11-12 07:13:11 +0000[diff] [blame]408
409 SDValue getARMCmp(SDValue LHS, SDValue RHS, ISD::CondCode CC,
Evan Cheng218977b2010-07-13 19:27:42 +0000[diff] [blame]410 SDValue &ARMcc, SelectionDAG &DAG, DebugLoc dl) const;
411 SDValue getVFPCmp(SDValue LHS, SDValue RHS,
412 SelectionDAG &DAG, DebugLoc dl) const;
413
414 SDValue OptimizeVFPBrcond(SDValue Op, SelectionDAG &DAG) const;
Jim Grosbach5278eb82009-12-11 01:42:04 +0000[diff] [blame]415
Jim Grosbache801dc42009-12-12 01:40:06 +0000[diff] [blame]416 MachineBasicBlock *EmitAtomicCmpSwap(MachineInstr *MI,
417 MachineBasicBlock *BB,
418 unsigned Size) const;
419 MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI,
420 MachineBasicBlock *BB,
421 unsigned Size,
422 unsigned BinOpcode) const;
Jim Grosbach5278eb82009-12-11 01:42:04 +0000[diff] [blame]423
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]424 };
Eric Christopherab695882010-07-21 22:26:11 +0000[diff] [blame]425
426 namespace ARM {
427 FastISel *createFastISel(FunctionLoweringInfo &funcInfo);
428 }
Evan Chenga8e29892007-01-19 07:51:42 +0000[diff] [blame]429}
430
431#endif // ARMISELLOWERING_H