[all-commits] [llvm/llvm-project] dcf465: [X86] combineAnd - add SimplifyMultipleUseDemanded...

Simon Pilgrim via All-commits all-commits at lists.llvm.org
Sat Feb 12 07:32:46 PST 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: dcf465731d88ec323edb435df953bf6935c216e4
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-02-12 (Sat, 12 Feb 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/psubus.ll

  Log Message:
  [X86] combineAnd - add SimplifyMultipleUseDemandedBits handling to masked vector element analysis

Extend the existing fold to use SimplifyMultipleUseDemandedBits as well as SimplifyDemandedVectorElts/SimplifyDemandedBits when attempting to simplify based off known zero vector elements.

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