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| author | Dimitry Andric <dim@FreeBSD.org> | 2017-01-09 21:23:09 +0000 |
|---|---|---|
| committer | Dimitry Andric <dim@FreeBSD.org> | 2017-01-09 21:23:09 +0000 |
| commit | 909545a822eef491158f831688066f0ec2866938 (patch) | |
| tree | 5b0bf0e81294007a9b462b21031b3df272c655c3 /lib/Transforms/Utils/SimplifyLibCalls.cpp | |
| parent | 7e7b6700743285c0af506ac6299ddf82ebd434b9 (diff) | |
| download | src-909545a822eef491158f831688066f0ec2866938.tar.gz src-909545a822eef491158f831688066f0ec2866938.zip | |
Vendor import of llvm trunk r291476:vendor/llvm/llvm-trunk-r291476
Notes
Notes:
svn path=/vendor/llvm/dist/; revision=311818
svn path=/vendor/llvm/llvm-trunk-r291476/; revision=311819; tag=vendor/llvm/llvm-trunk-r291476
Diffstat (limited to 'lib/Transforms/Utils/SimplifyLibCalls.cpp')
| -rw-r--r-- | lib/Transforms/Utils/SimplifyLibCalls.cpp | 12 |
1 files changed, 2 insertions, 10 deletions
diff --git a/lib/Transforms/Utils/SimplifyLibCalls.cpp b/lib/Transforms/Utils/SimplifyLibCalls.cpp index c8f030f7eb83..11d54bcf4f89 100644 --- a/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -1189,19 +1189,11 @@ Value *LibCallSimplifier::optimizeExp2(CallInst *CI, IRBuilder<> &B) { Value *LibCallSimplifier::optimizeFabs(CallInst *CI, IRBuilder<> &B) { Function *Callee = CI->getCalledFunction(); - Value *Ret = nullptr; StringRef Name = Callee->getName(); if (Name == "fabs" && hasFloatVersion(Name)) - Ret = optimizeUnaryDoubleFP(CI, B, false); + return optimizeUnaryDoubleFP(CI, B, false); - Value *Op = CI->getArgOperand(0); - if (Instruction *I = dyn_cast<Instruction>(Op)) { - // Fold fabs(x * x) -> x * x; any squared FP value must already be positive. - if (I->getOpcode() == Instruction::FMul) - if (I->getOperand(0) == I->getOperand(1)) - return Op; - } - return Ret; + return nullptr; } Value *LibCallSimplifier::optimizeFMinFMax(CallInst *CI, IRBuilder<> &B) { |