[all-commits] [llvm/llvm-project] b4eb41: [X86] Disable VPBLENDVB formation in combineLogicB...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: b4eb415a996911132d1a9786a57846e75439e1f0
      https://github.com/llvm/llvm-project/commit/b4eb415a996911132d1a9786a57846e75439e1f0
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-07-04 (Sat, 04 Jul 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vselect-packss.ll

  Log Message:
  -----------
  [X86] Disable VPBLENDVB formation in combineLogicBlendIntoPBLENDV if VPTERNLOG is supported.

VPBLENDVB is multiple uops while VPTERNLOG is a single uop. So
we should use that instead.

Reviewed By: RKSimon

Differential Revision: https://reviews.llvm.org/D83155