[PATCH] D77300: [X86] Improve combineVectorShiftImm

[Jay Foad via Phabricator via llvm-commits]

foad updated this revision to Diff 254546.
foad added a comment.

Address review comments about undef.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77300/new/

https://reviews.llvm.org/D77300

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/midpoint-int-vec-128.ll
  llvm/test/CodeGen/X86/midpoint-int-vec-256.ll
  llvm/test/CodeGen/X86/midpoint-int-vec-512.ll

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