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author | Meador Inge <meadori@codesourcery.com> | 2012-10-31 14:58:26 +0000 |
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committer | Meador Inge <meadori@codesourcery.com> | 2012-10-31 14:58:26 +0000 |
commit | e0f1dca1c8c191db3b353b60142a574c2d1c2a54 (patch) | |
tree | 48de2a48d1def1a4030a5f986d7714b089adebc0 /lib/Transforms/Scalar/SimplifyLibCalls.cpp | |
parent | 28578661385dc165ffe5171f2b9dad26f0a13cf9 (diff) | |
download | llvm-e0f1dca1c8c191db3b353b60142a574c2d1c2a54.tar.gz llvm-e0f1dca1c8c191db3b353b60142a574c2d1c2a54.tar.bz2 llvm-e0f1dca1c8c191db3b353b60142a574c2d1c2a54.tar.xz |
instcombine: Migrate strto* optimizations
This patch migrates the strto* optimizations from the simplify-libcalls
pass into the instcombine library call simplifier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@167119 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/SimplifyLibCalls.cpp')
-rw-r--r-- | lib/Transforms/Scalar/SimplifyLibCalls.cpp | 32 |
1 files changed, 1 insertions, 31 deletions
diff --git a/lib/Transforms/Scalar/SimplifyLibCalls.cpp b/lib/Transforms/Scalar/SimplifyLibCalls.cpp index 7002eb4119..32fcdbfe90 100644 --- a/lib/Transforms/Scalar/SimplifyLibCalls.cpp +++ b/lib/Transforms/Scalar/SimplifyLibCalls.cpp @@ -119,29 +119,6 @@ static bool IsOnlyUsedInEqualityComparison(Value *V, Value *With) { namespace { //===---------------------------------------===// -// 'strto*' Optimizations. This handles strtol, strtod, strtof, strtoul, etc. - -struct StrToOpt : public LibCallOptimization { - virtual Value *CallOptimizer(Function *Callee, CallInst *CI, IRBuilder<> &B) { - FunctionType *FT = Callee->getFunctionType(); - if ((FT->getNumParams() != 2 && FT->getNumParams() != 3) || - !FT->getParamType(0)->isPointerTy() || - !FT->getParamType(1)->isPointerTy()) - return 0; - - Value *EndPtr = CI->getArgOperand(1); - if (isa<ConstantPointerNull>(EndPtr)) { - // With a null EndPtr, this function won't capture the main argument. - // It would be readonly too, except that it still may write to errno. - CI->addAttribute(1, Attributes::get(Callee->getContext(), - Attributes::NoCapture)); - } - - return 0; - } -}; - -//===---------------------------------------===// // 'strspn' Optimizations struct StrSpnOpt : public LibCallOptimization { @@ -1066,7 +1043,7 @@ namespace { StringMap<LibCallOptimization*> Optimizations; // String and Memory LibCall Optimizations - StrToOpt StrTo; StrSpnOpt StrSpn; StrCSpnOpt StrCSpn; StrStrOpt StrStr; + StrSpnOpt StrSpn; StrCSpnOpt StrCSpn; StrStrOpt StrStr; MemCmpOpt MemCmp; MemCpyOpt MemCpy; MemMoveOpt MemMove; MemSetOpt MemSet; // Math Library Optimizations CosOpt Cos; PowOpt Pow; Exp2Opt Exp2; @@ -1134,13 +1111,6 @@ void SimplifyLibCalls::AddOpt(LibFunc::Func F1, LibFunc::Func F2, /// we know. void SimplifyLibCalls::InitOptimizations() { // String and Memory LibCall Optimizations - Optimizations["strtol"] = &StrTo; - Optimizations["strtod"] = &StrTo; - Optimizations["strtof"] = &StrTo; - Optimizations["strtoul"] = &StrTo; - Optimizations["strtoll"] = &StrTo; - Optimizations["strtold"] = &StrTo; - Optimizations["strtoull"] = &StrTo; Optimizations["strspn"] = &StrSpn; Optimizations["strcspn"] = &StrCSpn; Optimizations["strstr"] = &StrStr; |