[PATCH] D50035: [SLC] Expand simplification of pow() for vector types
Sanjay Patel via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Aug 1 15:12:24 PDT 2018
spatel added inline comments.
================
Comment at: llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp:1186
// pow(1.0, x) -> 1.0
- if (match(Base, m_SpecificFP(1.0)))
+ if (match(Base, m_FPOne()))
return Base;
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IIUC, this is NFC, so you could just commit that before the other changes
================
Comment at: llvm/lib/Transforms/Utils/SimplifyLibCalls.cpp:1263-1265
+ // pow(x, n) -> x * x * x * ...
+ const APFloat *ExpoF;
+ if (Pow->isFast() && match(Expo, m_APFloat(ExpoF))) {
----------------
Is there a test for this transform?
https://reviews.llvm.org/D50035
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