[PATCH] D69497: [PowerPC] Fix MI peephole optimization for splats

Kai Luo via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Sun Oct 27 21:38:52 PDT 2019


lkail added inline comments.


================
Comment at: llvm/lib/Target/PowerPC/PPCMIPeephole.cpp:431
 
-              if ((FeedImmed == 0 || FeedImmed == 3) && FeedReg1 == FeedReg2) {
+              if ((FeedImmed == 0 || FeedImmed == 3) && FeedRegsSame) {
                 LLVM_DEBUG(dbgs() << "Optimizing splat/swap or splat/splat "
----------------
Can we just simply check if `FeedReg1` and `FeedReg2` are virtual registers?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69497/new/

https://reviews.llvm.org/D69497





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