diff options
Diffstat (limited to 'llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp index 9cb8e20..69b0f78 100644 --- a/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp @@ -2134,12 +2134,19 @@ Value *LibCallSimplifier::replacePowWithExp(CallInst *Pow, IRBuilderBase &B) { } // pow(10.0, x) -> exp10(x) - // TODO: There is no exp10() intrinsic yet, but some day there shall be one. if (match(Base, m_SpecificFP(10.0)) && - hasFloatFn(M, TLI, Ty, LibFunc_exp10, LibFunc_exp10f, LibFunc_exp10l)) + hasFloatFn(M, TLI, Ty, LibFunc_exp10, LibFunc_exp10f, LibFunc_exp10l)) { + + if (Pow->doesNotAccessMemory()) { + CallInst *NewExp10 = + B.CreateIntrinsic(Intrinsic::exp10, {Ty}, {Expo}, Pow, "exp10"); + return copyFlags(*Pow, NewExp10); + } + return copyFlags(*Pow, emitUnaryFloatFnCall(Expo, TLI, LibFunc_exp10, LibFunc_exp10f, LibFunc_exp10l, B, NoAttrs)); + } // pow(x, y) -> exp2(log2(x) * y) if (Pow->hasApproxFunc() && Pow->hasNoNaNs() && BaseF->isFiniteNonZero() && |