[PATCH] D146494: [X86] Combine constant vector inputs for FMA
Phoebe Wang via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Mon Mar 27 19:36:09 PDT 2023
pengfei added inline comments.
================
Comment at: llvm/lib/Target/X86/X86ISelLowering.cpp:54037
+ if (Subtarget.hasAVX2() && V.hasOneUse() &&
+ ISD::isConstantSplatVector(V.getNode(), SplatValue)) {
+ SmallVector<SDValue, 8> Ops;
----------------
Why just limit to splat constant?
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D146494/new/
https://reviews.llvm.org/D146494
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