Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 1 | //===---- MipsCCState.h - CCState with Mips specific extensions -----------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is distributed under the University of Illinois Open Source |
| 6 | // License. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #ifndef MIPSCCSTATE_H |
| 11 | #define MIPSCCSTATE_H |
| 12 | |
Chandler Carruth | d990388 | 2015-01-14 11:23:27 +0000 | [diff] [blame] | 13 | #include "MipsISelLowering.h" |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 14 | #include "llvm/ADT/SmallVector.h" |
| 15 | #include "llvm/CodeGen/CallingConvLower.h" |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 16 | |
| 17 | namespace llvm { |
| 18 | class SDNode; |
| 19 | class MipsSubtarget; |
| 20 | |
| 21 | class MipsCCState : public CCState { |
| 22 | public: |
| 23 | enum SpecialCallingConvType { Mips16RetHelperConv, NoSpecialCallingConv }; |
| 24 | |
| 25 | /// Determine the SpecialCallingConvType for the given callee |
| 26 | static SpecialCallingConvType |
| 27 | getSpecialCallingConvForCallee(const SDNode *Callee, |
| 28 | const MipsSubtarget &Subtarget); |
| 29 | |
| 30 | private: |
| 31 | /// Identify lowered values that originated from f128 arguments and record |
| 32 | /// this for use by RetCC_MipsN. |
| 33 | void PreAnalyzeCallResultForF128(const SmallVectorImpl<ISD::InputArg> &Ins, |
Simon Dardis | 70f7925 | 2017-04-26 11:10:38 +0000 | [diff] [blame] | 34 | const Type *RetTy, const char * Func); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 35 | |
| 36 | /// Identify lowered values that originated from f128 arguments and record |
| 37 | /// this for use by RetCC_MipsN. |
| 38 | void PreAnalyzeReturnForF128(const SmallVectorImpl<ISD::OutputArg> &Outs); |
| 39 | |
| 40 | /// Identify lowered values that originated from f128 arguments and record |
| 41 | /// this. |
| 42 | void |
| 43 | PreAnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs, |
| 44 | std::vector<TargetLowering::ArgListEntry> &FuncArgs, |
Simon Dardis | 70f7925 | 2017-04-26 11:10:38 +0000 | [diff] [blame] | 45 | const char *Func); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 46 | |
| 47 | /// Identify lowered values that originated from f128 arguments and record |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 48 | /// this for use by RetCC_MipsN. |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 49 | void |
| 50 | PreAnalyzeFormalArgumentsForF128(const SmallVectorImpl<ISD::InputArg> &Ins); |
| 51 | |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 52 | void |
| 53 | PreAnalyzeCallResultForVectorFloat(const SmallVectorImpl<ISD::InputArg> &Ins, |
| 54 | const Type *RetTy); |
| 55 | |
| 56 | void PreAnalyzeFormalArgumentsForVectorFloat( |
| 57 | const SmallVectorImpl<ISD::InputArg> &Ins); |
| 58 | |
| 59 | void |
| 60 | PreAnalyzeReturnForVectorFloat(const SmallVectorImpl<ISD::OutputArg> &Outs); |
| 61 | |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 62 | /// Records whether the value has been lowered from an f128. |
| 63 | SmallVector<bool, 4> OriginalArgWasF128; |
| 64 | |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 65 | /// Records whether the value has been lowered from float. |
| 66 | SmallVector<bool, 4> OriginalArgWasFloat; |
| 67 | |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 68 | /// Records whether the value has been lowered from a floating point vector. |
| 69 | SmallVector<bool, 4> OriginalArgWasFloatVector; |
| 70 | |
| 71 | /// Records whether the return value has been lowered from a floating point |
| 72 | /// vector. |
| 73 | SmallVector<bool, 4> OriginalRetWasFloatVector; |
| 74 | |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 75 | /// Records whether the value was a fixed argument. |
| 76 | /// See ISD::OutputArg::IsFixed, |
| 77 | SmallVector<bool, 4> CallOperandIsFixed; |
| 78 | |
| 79 | // Used to handle MIPS16-specific calling convention tweaks. |
| 80 | // FIXME: This should probably be a fully fledged calling convention. |
| 81 | SpecialCallingConvType SpecialCallingConv; |
| 82 | |
| 83 | public: |
| 84 | MipsCCState(CallingConv::ID CC, bool isVarArg, MachineFunction &MF, |
| 85 | SmallVectorImpl<CCValAssign> &locs, LLVMContext &C, |
| 86 | SpecialCallingConvType SpecialCC = NoSpecialCallingConv) |
| 87 | : CCState(CC, isVarArg, MF, locs, C), SpecialCallingConv(SpecialCC) {} |
| 88 | |
| 89 | void |
| 90 | AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs, |
| 91 | CCAssignFn Fn, |
| 92 | std::vector<TargetLowering::ArgListEntry> &FuncArgs, |
Simon Dardis | 70f7925 | 2017-04-26 11:10:38 +0000 | [diff] [blame] | 93 | const char *Func) { |
| 94 | PreAnalyzeCallOperands(Outs, FuncArgs, Func); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 95 | CCState::AnalyzeCallOperands(Outs, Fn); |
| 96 | OriginalArgWasF128.clear(); |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 97 | OriginalArgWasFloat.clear(); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 98 | OriginalArgWasFloatVector.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 99 | CallOperandIsFixed.clear(); |
| 100 | } |
| 101 | |
| 102 | // The AnalyzeCallOperands in the base class is not usable since we must |
| 103 | // provide a means of accessing ArgListEntry::IsFixed. Delete them from this |
| 104 | // class. This doesn't stop them being used via the base class though. |
| 105 | void AnalyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs, |
Aaron Ballman | f9a1897 | 2015-02-15 22:54:22 +0000 | [diff] [blame] | 106 | CCAssignFn Fn) = delete; |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 107 | void AnalyzeCallOperands(const SmallVectorImpl<MVT> &Outs, |
| 108 | SmallVectorImpl<ISD::ArgFlagsTy> &Flags, |
Aaron Ballman | f9a1897 | 2015-02-15 22:54:22 +0000 | [diff] [blame] | 109 | CCAssignFn Fn) = delete; |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 110 | |
| 111 | void AnalyzeFormalArguments(const SmallVectorImpl<ISD::InputArg> &Ins, |
| 112 | CCAssignFn Fn) { |
| 113 | PreAnalyzeFormalArgumentsForF128(Ins); |
| 114 | CCState::AnalyzeFormalArguments(Ins, Fn); |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 115 | OriginalArgWasFloat.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 116 | OriginalArgWasF128.clear(); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 117 | OriginalArgWasFloatVector.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 118 | } |
| 119 | |
| 120 | void AnalyzeCallResult(const SmallVectorImpl<ISD::InputArg> &Ins, |
Simon Dardis | 70f7925 | 2017-04-26 11:10:38 +0000 | [diff] [blame] | 121 | CCAssignFn Fn, const Type *RetTy, |
| 122 | const char *Func) { |
| 123 | PreAnalyzeCallResultForF128(Ins, RetTy, Func); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 124 | PreAnalyzeCallResultForVectorFloat(Ins, RetTy); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 125 | CCState::AnalyzeCallResult(Ins, Fn); |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 126 | OriginalArgWasFloat.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 127 | OriginalArgWasF128.clear(); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 128 | OriginalArgWasFloatVector.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 129 | } |
| 130 | |
| 131 | void AnalyzeReturn(const SmallVectorImpl<ISD::OutputArg> &Outs, |
| 132 | CCAssignFn Fn) { |
| 133 | PreAnalyzeReturnForF128(Outs); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 134 | PreAnalyzeReturnForVectorFloat(Outs); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 135 | CCState::AnalyzeReturn(Outs, Fn); |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 136 | OriginalArgWasFloat.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 137 | OriginalArgWasF128.clear(); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 138 | OriginalArgWasFloatVector.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | bool CheckReturn(const SmallVectorImpl<ISD::OutputArg> &ArgsFlags, |
| 142 | CCAssignFn Fn) { |
| 143 | PreAnalyzeReturnForF128(ArgsFlags); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 144 | PreAnalyzeReturnForVectorFloat(ArgsFlags); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 145 | bool Return = CCState::CheckReturn(ArgsFlags, Fn); |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 146 | OriginalArgWasFloat.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 147 | OriginalArgWasF128.clear(); |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 148 | OriginalArgWasFloatVector.clear(); |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 149 | return Return; |
| 150 | } |
| 151 | |
| 152 | bool WasOriginalArgF128(unsigned ValNo) { return OriginalArgWasF128[ValNo]; } |
Daniel Sanders | c43cda8 | 2014-11-07 16:54:21 +0000 | [diff] [blame] | 153 | bool WasOriginalArgFloat(unsigned ValNo) { |
| 154 | return OriginalArgWasFloat[ValNo]; |
| 155 | } |
Simon Dardis | 212cccb | 2017-06-09 14:37:08 +0000 | [diff] [blame] | 156 | bool WasOriginalArgVectorFloat(unsigned ValNo) const { |
| 157 | return OriginalArgWasFloatVector[ValNo]; |
| 158 | } |
| 159 | bool WasOriginalRetVectorFloat(unsigned ValNo) const { |
| 160 | return OriginalRetWasFloatVector[ValNo]; |
| 161 | } |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 162 | bool IsCallOperandFixed(unsigned ValNo) { return CallOperandIsFixed[ValNo]; } |
| 163 | SpecialCallingConvType getSpecialCallingConv() { return SpecialCallingConv; } |
| 164 | }; |
Alexander Kornienko | f00654e | 2015-06-23 09:49:53 +0000 | [diff] [blame] | 165 | } |
Daniel Sanders | 0456c15 | 2014-11-07 14:24:31 +0000 | [diff] [blame] | 166 | |
| 167 | #endif |