diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index 945814e3a86..979aea2e1e1 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -1094,9 +1094,7 @@ Value *LibCallSimplifier::optimizePow(CallInst *CI, IRBuilder<> &B) { if (Op2C->isExactlyValue(0.5) && hasUnaryFloatFn(TLI, Op2->getType(), LibFunc::sqrt, LibFunc::sqrtf, - LibFunc::sqrtl) && - hasUnaryFloatFn(TLI, Op2->getType(), LibFunc::fabs, LibFunc::fabsf, - LibFunc::fabsl)) { + LibFunc::sqrtl)) { // In -ffast-math, pow(x, 0.5) -> sqrt(x). if (CI->hasUnsafeAlgebra()) { @@ -1116,8 +1114,12 @@ Value *LibCallSimplifier::optimizePow(CallInst *CI, IRBuilder<> &B) { Value *Inf = ConstantFP::getInfinity(CI->getType()); Value *NegInf = ConstantFP::getInfinity(CI->getType(), true); Value *Sqrt = emitUnaryFloatFnCall(Op1, "sqrt", B, Callee->getAttributes()); - Value *FAbs = - emitUnaryFloatFnCall(Sqrt, "fabs", B, Callee->getAttributes()); + + Module *M = Callee->getParent(); + Function *FabsF = Intrinsic::getDeclaration(M, Intrinsic::fabs, + CI->getType()); + Value *FAbs = B.CreateCall(FabsF, Sqrt); + Value *FCmp = B.CreateFCmpOEQ(Op1, NegInf); Value *Sel = B.CreateSelect(FCmp, Inf, FAbs); return Sel; |
