[PATCH] D69157: [X86] Prefer KORTEST on Knights Landing or later for memcmp()

[David Zarzycki via Phabricator via llvm-commits]

davezarzycki updated this revision to Diff 225577.
davezarzycki added a comment.

No longer leave the upper vector register as UNDEF.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D69157/new/

https://reviews.llvm.org/D69157

Files:
  lib/Target/X86/X86.td
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86Subtarget.h
  lib/Target/X86/X86TargetTransformInfo.h
  test/CodeGen/X86/memcmp.ll
  test/CodeGen/X86/setcc-wide-types.ll

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