[PATCH] D145129: [X86] Fix undefined access in `matchUnaryPermuteShuffle`

[Noah Goldstein via Phabricator via llvm-commits]

goldstein.w.n updated this revision to Diff 501749.
goldstein.w.n added a comment.

Make full recommit


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D145129/new/

https://reviews.llvm.org/D145129

Files:
  llvm/lib/Target/X86/X86.td
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86TargetTransformInfo.h
  llvm/test/CodeGen/X86/avx512-hadd-hsub.ll
  llvm/test/CodeGen/X86/min-legal-vector-width.ll
  llvm/test/CodeGen/X86/pr57340.ll
  llvm/test/CodeGen/X86/shuffle-as-shifts.ll

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