diff options
Diffstat (limited to 'llvm/lib/IR/Instructions.cpp')
| -rw-r--r-- | llvm/lib/IR/Instructions.cpp | 52 |
1 files changed, 34 insertions, 18 deletions
diff --git a/llvm/lib/IR/Instructions.cpp b/llvm/lib/IR/Instructions.cpp index b896382..a1751c0 100644 --- a/llvm/lib/IR/Instructions.cpp +++ b/llvm/lib/IR/Instructions.cpp @@ -2798,6 +2798,7 @@ bool CastInst::isNoopCast(Instruction::CastOps Opcode, return false; case Instruction::BitCast: return true; // BitCast never modifies bits. + case Instruction::PtrToAddr: case Instruction::PtrToInt: return DL.getIntPtrType(SrcTy)->getScalarSizeInBits() == DestTy->getScalarSizeInBits(); @@ -2855,26 +2856,29 @@ unsigned CastInst::isEliminableCastPair( // same reason. const unsigned numCastOps = Instruction::CastOpsEnd - Instruction::CastOpsBegin; + // clang-format off static const uint8_t CastResults[numCastOps][numCastOps] = { - // T F F U S F F P I B A -+ - // R Z S P P I I T P 2 N T S | - // U E E 2 2 2 2 R E I T C C +- secondOp - // N X X U S F F N X N 2 V V | - // C T T I I P P C T T P T T -+ - { 1, 0, 0,99,99, 0, 0,99,99,99, 0, 3, 0}, // Trunc -+ - { 8, 1, 9,99,99, 2,17,99,99,99, 2, 3, 0}, // ZExt | - { 8, 0, 1,99,99, 0, 2,99,99,99, 0, 3, 0}, // SExt | - { 0, 0, 0,99,99, 0, 0,99,99,99, 0, 3, 0}, // FPToUI | - { 0, 0, 0,99,99, 0, 0,99,99,99, 0, 3, 0}, // FPToSI | - { 99,99,99, 0, 0,99,99, 0, 0,99,99, 4, 0}, // UIToFP +- firstOp - { 99,99,99, 0, 0,99,99, 0, 0,99,99, 4, 0}, // SIToFP | - { 99,99,99, 0, 0,99,99, 0, 0,99,99, 4, 0}, // FPTrunc | - { 99,99,99, 2, 2,99,99, 8, 2,99,99, 4, 0}, // FPExt | - { 1, 0, 0,99,99, 0, 0,99,99,99, 7, 3, 0}, // PtrToInt | - { 99,99,99,99,99,99,99,99,99,11,99,15, 0}, // IntToPtr | - { 5, 5, 5, 0, 0, 5, 5, 0, 0,16, 5, 1,14}, // BitCast | - { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,13,12}, // AddrSpaceCast -+ + // T F F U S F F P P I B A -+ + // R Z S P P I I T P 2 2 N T S | + // U E E 2 2 2 2 R E I A T C C +- secondOp + // N X X U S F F N X N D 2 V V | + // C T T I I P P C T T R P T T -+ + { 1, 0, 0,99,99, 0, 0,99,99,99,99, 0, 3, 0}, // Trunc -+ + { 8, 1, 9,99,99, 2,17,99,99,99,99, 2, 3, 0}, // ZExt | + { 8, 0, 1,99,99, 0, 2,99,99,99,99, 0, 3, 0}, // SExt | + { 0, 0, 0,99,99, 0, 0,99,99,99,99, 0, 3, 0}, // FPToUI | + { 0, 0, 0,99,99, 0, 0,99,99,99,99, 0, 3, 0}, // FPToSI | + { 99,99,99, 0, 0,99,99, 0, 0,99,99,99, 4, 0}, // UIToFP +- firstOp + { 99,99,99, 0, 0,99,99, 0, 0,99,99,99, 4, 0}, // SIToFP | + { 99,99,99, 0, 0,99,99, 0, 0,99,99,99, 4, 0}, // FPTrunc | + { 99,99,99, 2, 2,99,99, 8, 2,99,99,99, 4, 0}, // FPExt | + { 1, 0, 0,99,99, 0, 0,99,99,99,99, 7, 3, 0}, // PtrToInt | + { 1, 0, 0,99,99, 0, 0,99,99,99,99, 0, 3, 0}, // PtrToAddr | + { 99,99,99,99,99,99,99,99,99,11,99,99,15, 0}, // IntToPtr | + { 5, 5, 5, 0, 0, 5, 5, 0, 0,16,16, 5, 1,14}, // BitCast | + { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,13,12}, // AddrSpaceCast -+ }; + // clang-format on // TODO: This logic could be encoded into the table above and handled in the // switch below. @@ -3046,6 +3050,7 @@ CastInst *CastInst::Create(Instruction::CastOps op, Value *S, Type *Ty, case SIToFP: return new SIToFPInst (S, Ty, Name, InsertBefore); case FPToUI: return new FPToUIInst (S, Ty, Name, InsertBefore); case FPToSI: return new FPToSIInst (S, Ty, Name, InsertBefore); + case PtrToAddr: return new PtrToAddrInst (S, Ty, Name, InsertBefore); case PtrToInt: return new PtrToIntInst (S, Ty, Name, InsertBefore); case IntToPtr: return new IntToPtrInst (S, Ty, Name, InsertBefore); case BitCast: @@ -3347,6 +3352,7 @@ CastInst::castIsValid(Instruction::CastOps op, Type *SrcTy, Type *DstTy) { case Instruction::FPToSI: return SrcTy->isFPOrFPVectorTy() && DstTy->isIntOrIntVectorTy() && SrcEC == DstEC; + case Instruction::PtrToAddr: case Instruction::PtrToInt: if (SrcEC != DstEC) return false; @@ -3460,6 +3466,12 @@ PtrToIntInst::PtrToIntInst(Value *S, Type *Ty, const Twine &Name, assert(castIsValid(getOpcode(), S, Ty) && "Illegal PtrToInt"); } +PtrToAddrInst::PtrToAddrInst(Value *S, Type *Ty, const Twine &Name, + InsertPosition InsertBefore) + : CastInst(Ty, PtrToAddr, S, Name, InsertBefore) { + assert(castIsValid(getOpcode(), S, Ty) && "Illegal PtrToAddr"); +} + IntToPtrInst::IntToPtrInst(Value *S, Type *Ty, const Twine &Name, InsertPosition InsertBefore) : CastInst(Ty, IntToPtr, S, Name, InsertBefore) { @@ -4427,6 +4439,10 @@ PtrToIntInst *PtrToIntInst::cloneImpl() const { return new PtrToIntInst(getOperand(0), getType()); } +PtrToAddrInst *PtrToAddrInst::cloneImpl() const { + return new PtrToAddrInst(getOperand(0), getType()); +} + IntToPtrInst *IntToPtrInst::cloneImpl() const { return new IntToPtrInst(getOperand(0), getType()); } |