diff options
Diffstat (limited to 'contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp')
| -rw-r--r-- | contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp | 111 |
1 files changed, 58 insertions, 53 deletions
diff --git a/contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp index 7c415e5..fbb9465 100644 --- a/contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/contrib/llvm/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -134,7 +134,7 @@ namespace { struct StrCatOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strcat" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getReturnType() != B.getInt8PtrTy() || FT->getParamType(0) != FT->getReturnType() || @@ -184,7 +184,7 @@ struct StrCatOpt : public LibCallOptimization { struct StrNCatOpt : public StrCatOpt { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strncat" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != B.getInt8PtrTy() || FT->getParamType(0) != FT->getReturnType() || @@ -232,7 +232,7 @@ struct StrNCatOpt : public StrCatOpt { struct StrChrOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strchr" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getReturnType() != B.getInt8PtrTy() || FT->getParamType(0) != FT->getReturnType() || @@ -282,7 +282,7 @@ struct StrChrOpt : public LibCallOptimization { struct StrRChrOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strrchr" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getReturnType() != B.getInt8PtrTy() || FT->getParamType(0) != FT->getReturnType() || @@ -323,7 +323,7 @@ struct StrRChrOpt : public LibCallOptimization { struct StrCmpOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strcmp" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || !FT->getReturnType()->isIntegerTy(32) || FT->getParamType(0) != FT->getParamType(1) || @@ -338,16 +338,17 @@ struct StrCmpOpt : public LibCallOptimization { bool HasStr1 = GetConstantStringInfo(Str1P, Str1); bool HasStr2 = GetConstantStringInfo(Str2P, Str2); - if (HasStr1 && Str1.empty()) // strcmp("", x) -> *x - return B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), CI->getType()); - - if (HasStr2 && Str2.empty()) // strcmp(x,"") -> *x - return B.CreateZExt(B.CreateLoad(Str1P, "strcmpload"), CI->getType()); - // strcmp(x, y) -> cnst (if both x and y are constant strings) if (HasStr1 && HasStr2) return ConstantInt::get(CI->getType(), - strcmp(Str1.c_str(),Str2.c_str())); + StringRef(Str1).compare(Str2)); + + if (HasStr1 && Str1.empty()) // strcmp("", x) -> -*x + return B.CreateNeg(B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), + CI->getType())); + + if (HasStr2 && Str2.empty()) // strcmp(x,"") -> *x + return B.CreateZExt(B.CreateLoad(Str1P, "strcmpload"), CI->getType()); // strcmp(P, "x") -> memcmp(P, "x", 2) uint64_t Len1 = GetStringLength(Str1P); @@ -371,7 +372,7 @@ struct StrCmpOpt : public LibCallOptimization { struct StrNCmpOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strncmp" function prototype. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || !FT->getReturnType()->isIntegerTy(32) || FT->getParamType(0) != FT->getParamType(1) || @@ -400,16 +401,20 @@ struct StrNCmpOpt : public LibCallOptimization { bool HasStr1 = GetConstantStringInfo(Str1P, Str1); bool HasStr2 = GetConstantStringInfo(Str2P, Str2); - if (HasStr1 && Str1.empty()) // strncmp("", x, n) -> *x - return B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), CI->getType()); + // strncmp(x, y) -> cnst (if both x and y are constant strings) + if (HasStr1 && HasStr2) { + StringRef SubStr1 = StringRef(Str1).substr(0, Length); + StringRef SubStr2 = StringRef(Str2).substr(0, Length); + return ConstantInt::get(CI->getType(), SubStr1.compare(SubStr2)); + } + + if (HasStr1 && Str1.empty()) // strncmp("", x, n) -> -*x + return B.CreateNeg(B.CreateZExt(B.CreateLoad(Str2P, "strcmpload"), + CI->getType())); if (HasStr2 && Str2.empty()) // strncmp(x, "", n) -> *x return B.CreateZExt(B.CreateLoad(Str1P, "strcmpload"), CI->getType()); - // strncmp(x, y) -> cnst (if both x and y are constant strings) - if (HasStr1 && HasStr2) - return ConstantInt::get(CI->getType(), - strncmp(Str1.c_str(), Str2.c_str(), Length)); return 0; } }; @@ -426,7 +431,7 @@ struct StrCpyOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Verify the "strcpy" function prototype. unsigned NumParams = OptChkCall ? 3 : 2; - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != NumParams || FT->getReturnType() != FT->getParamType(0) || FT->getParamType(0) != FT->getParamType(1) || @@ -462,7 +467,7 @@ struct StrCpyOpt : public LibCallOptimization { struct StrNCpyOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || FT->getParamType(0) != FT->getParamType(1) || FT->getParamType(0) != B.getInt8PtrTy() || @@ -511,7 +516,7 @@ struct StrNCpyOpt : public LibCallOptimization { struct StrLenOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 1 || FT->getParamType(0) != B.getInt8PtrTy() || !FT->getReturnType()->isIntegerTy()) @@ -537,7 +542,7 @@ struct StrLenOpt : public LibCallOptimization { struct StrPBrkOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getParamType(0) != B.getInt8PtrTy() || FT->getParamType(1) != FT->getParamType(0) || @@ -575,7 +580,7 @@ struct StrPBrkOpt : public LibCallOptimization { struct StrToOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if ((FT->getNumParams() != 2 && FT->getNumParams() != 3) || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy()) @@ -597,7 +602,7 @@ struct StrToOpt : public LibCallOptimization { struct StrSpnOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getParamType(0) != B.getInt8PtrTy() || FT->getParamType(1) != FT->getParamType(0) || @@ -626,7 +631,7 @@ struct StrSpnOpt : public LibCallOptimization { struct StrCSpnOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || FT->getParamType(0) != B.getInt8PtrTy() || FT->getParamType(1) != FT->getParamType(0) || @@ -658,7 +663,7 @@ struct StrCSpnOpt : public LibCallOptimization { struct StrStrOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || @@ -722,7 +727,7 @@ struct StrStrOpt : public LibCallOptimization { struct MemCmpOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || !FT->getReturnType()->isIntegerTy(32)) @@ -773,7 +778,7 @@ struct MemCpyOpt : public LibCallOptimization { // These optimizations require TargetData. if (!TD) return 0; - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || @@ -795,7 +800,7 @@ struct MemMoveOpt : public LibCallOptimization { // These optimizations require TargetData. if (!TD) return 0; - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || @@ -817,7 +822,7 @@ struct MemSetOpt : public LibCallOptimization { // These optimizations require TargetData. if (!TD) return 0; - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 3 || FT->getReturnType() != FT->getParamType(0) || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isIntegerTy() || @@ -840,7 +845,7 @@ struct MemSetOpt : public LibCallOptimization { struct PowOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // Just make sure this has 2 arguments of the same FP type, which match the // result type. if (FT->getNumParams() != 2 || FT->getReturnType() != FT->getParamType(0) || @@ -874,8 +879,8 @@ struct PowOpt : public LibCallOptimization { Callee->getAttributes()); Value *FAbs = EmitUnaryFloatFnCall(Sqrt, "fabs", B, Callee->getAttributes()); - Value *FCmp = B.CreateFCmpOEQ(Op1, NegInf, "tmp"); - Value *Sel = B.CreateSelect(FCmp, Inf, FAbs, "tmp"); + Value *FCmp = B.CreateFCmpOEQ(Op1, NegInf); + Value *Sel = B.CreateSelect(FCmp, Inf, FAbs); return Sel; } @@ -895,7 +900,7 @@ struct PowOpt : public LibCallOptimization { struct Exp2Opt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // Just make sure this has 1 argument of FP type, which matches the // result type. if (FT->getNumParams() != 1 || FT->getReturnType() != FT->getParamType(0) || @@ -908,10 +913,10 @@ struct Exp2Opt : public LibCallOptimization { Value *LdExpArg = 0; if (SIToFPInst *OpC = dyn_cast<SIToFPInst>(Op)) { if (OpC->getOperand(0)->getType()->getPrimitiveSizeInBits() <= 32) - LdExpArg = B.CreateSExt(OpC->getOperand(0), B.getInt32Ty(), "tmp"); + LdExpArg = B.CreateSExt(OpC->getOperand(0), B.getInt32Ty()); } else if (UIToFPInst *OpC = dyn_cast<UIToFPInst>(Op)) { if (OpC->getOperand(0)->getType()->getPrimitiveSizeInBits() < 32) - LdExpArg = B.CreateZExt(OpC->getOperand(0), B.getInt32Ty(), "tmp"); + LdExpArg = B.CreateZExt(OpC->getOperand(0), B.getInt32Ty()); } if (LdExpArg) { @@ -946,7 +951,7 @@ struct Exp2Opt : public LibCallOptimization { struct UnaryDoubleFPOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 1 || !FT->getReturnType()->isDoubleTy() || !FT->getParamType(0)->isDoubleTy()) return 0; @@ -973,7 +978,7 @@ struct UnaryDoubleFPOpt : public LibCallOptimization { struct FFSOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // Just make sure this has 2 arguments of the same FP type, which match the // result type. if (FT->getNumParams() != 1 || @@ -996,10 +1001,10 @@ struct FFSOpt : public LibCallOptimization { Value *F = Intrinsic::getDeclaration(Callee->getParent(), Intrinsic::cttz, ArgType); Value *V = B.CreateCall(F, Op, "cttz"); - V = B.CreateAdd(V, ConstantInt::get(V->getType(), 1), "tmp"); - V = B.CreateIntCast(V, B.getInt32Ty(), false, "tmp"); + V = B.CreateAdd(V, ConstantInt::get(V->getType(), 1)); + V = B.CreateIntCast(V, B.getInt32Ty(), false); - Value *Cond = B.CreateICmpNE(Op, Constant::getNullValue(ArgType), "tmp"); + Value *Cond = B.CreateICmpNE(Op, Constant::getNullValue(ArgType)); return B.CreateSelect(Cond, V, B.getInt32(0)); } }; @@ -1009,7 +1014,7 @@ struct FFSOpt : public LibCallOptimization { struct IsDigitOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // We require integer(i32) if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() || !FT->getParamType(0)->isIntegerTy(32)) @@ -1028,7 +1033,7 @@ struct IsDigitOpt : public LibCallOptimization { struct IsAsciiOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // We require integer(i32) if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() || !FT->getParamType(0)->isIntegerTy(32)) @@ -1046,7 +1051,7 @@ struct IsAsciiOpt : public LibCallOptimization { struct AbsOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // We require integer(integer) where the types agree. if (FT->getNumParams() != 1 || !FT->getReturnType()->isIntegerTy() || FT->getParamType(0) != FT->getReturnType()) @@ -1067,7 +1072,7 @@ struct AbsOpt : public LibCallOptimization { struct ToAsciiOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); // We require i32(i32) if (FT->getNumParams() != 1 || FT->getReturnType() != FT->getParamType(0) || !FT->getParamType(0)->isIntegerTy(32)) @@ -1147,7 +1152,7 @@ struct PrintFOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Require one fixed pointer argument and an integer/void result. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() < 1 || !FT->getParamType(0)->isPointerTy() || !(FT->getReturnType()->isIntegerTy() || FT->getReturnType()->isVoidTy())) @@ -1241,7 +1246,7 @@ struct SPrintFOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Require two fixed pointer arguments and an integer result. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || !FT->getReturnType()->isIntegerTy()) @@ -1272,7 +1277,7 @@ struct SPrintFOpt : public LibCallOptimization { struct FWriteOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Require a pointer, an integer, an integer, a pointer, returning integer. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 4 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isIntegerTy() || !FT->getParamType(2)->isIntegerTy() || @@ -1310,7 +1315,7 @@ struct FPutsOpt : public LibCallOptimization { if (!TD) return 0; // Require two pointers. Also, we can't optimize if return value is used. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || !CI->use_empty()) @@ -1379,7 +1384,7 @@ struct FPrintFOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Require two fixed paramters as pointers and integer result. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() != 2 || !FT->getParamType(0)->isPointerTy() || !FT->getParamType(1)->isPointerTy() || !FT->getReturnType()->isIntegerTy()) @@ -1410,7 +1415,7 @@ struct FPrintFOpt : public LibCallOptimization { struct PutsOpt : public LibCallOptimization { virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { // Require one fixed pointer argument and an integer/void result. - const FunctionType *FT = Callee->getFunctionType(); + FunctionType *FT = Callee->getFunctionType(); if (FT->getNumParams() < 1 || !FT->getParamType(0)->isPointerTy() || !(FT->getReturnType()->isIntegerTy() || FT->getReturnType()->isVoidTy())) @@ -1685,7 +1690,7 @@ void SimplifyLibCalls::setDoesNotAlias(Function &F, unsigned n) { void SimplifyLibCalls::inferPrototypeAttributes(Function &F) { - const FunctionType *FTy = F.getFunctionType(); + FunctionType *FTy = F.getFunctionType(); StringRef Name = F.getName(); switch (Name[0]) { |
