[all-commits] [llvm/llvm-project] 623d4b: [X86] Support optional NOT stages in the AND(SRL(X...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 623d4b57873df98ffad852462cf292601e79fb93
      https://github.com/llvm/llvm-project/commit/623d4b57873df98ffad852462cf292601e79fb93
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-04-04 (Mon, 04 Apr 2022)

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

  Log Message:
  -----------
  [X86] Support optional NOT stages in the AND(SRL(X,Y),1) -> SETCC(BT(X,Y)) fold

Extension to D122891, peek through NOT() ops, adjusting the condcode as we go.