[PATCH] D130953: [X86][AVX] Eliminate redundant movzbl instruction.

Simon Pilgrim via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Wed Oct 19 03:13:49 PDT 2022


RKSimon added a comment.

Have you seen any cases where we need movzwl?



================
Comment at: llvm/lib/Target/X86/X86InstrAVX512.td:11677
 
+let Predicates = [HasAVX, HasAVX512, NoBWI] in {
+  def : Pat<(X86pinsrb VR128:$src1,
----------------
I don't think you need HasAVX?


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  https://reviews.llvm.org/D130953/new/

https://reviews.llvm.org/D130953



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