diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index ef70049..2434546 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -1354,11 +1354,13 @@ Value *LibCallSimplifier::optimizeLog(CallInst *CI, IRBuilder<> &B) { !FT->getParamType(0)->isFloatingPointTy()) return Ret; - if (!canUseUnsafeFPMath(CI->getParent()->getParent())) + if (!CI->hasUnsafeAlgebra()) return Ret; Value *Op1 = CI->getArgOperand(0); auto *OpC = dyn_cast<CallInst>(Op1); - if (!OpC) + + // The earlier call must also be unsafe in order to do these transforms. + if (!OpC || !OpC->hasUnsafeAlgebra()) return Ret; // log(pow(x,y)) -> y*log(x) |