[all-commits] [llvm/llvm-project] 247442: [TargetLowering] SimplifyMultipleUseDemandedBits -...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 24744213982a1fa5902233ae81fd3afe03fd3514
      https://github.com/llvm/llvm-project/commit/24744213982a1fa5902233ae81fd3afe03fd3514
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2020-06-18 (Thu, 18 Jun 2020)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/test/CodeGen/X86/vector-reduce-and-bool.ll
    M llvm/test/CodeGen/X86/vector-reduce-or-bool.ll
    M llvm/test/CodeGen/X86/vector-reduce-xor-bool.ll

  Log Message:
  -----------
  [TargetLowering] SimplifyMultipleUseDemandedBits - drop already extended ISD::SIGN_EXTEND_INREG nodes.

If the source of the SIGN_EXTEND_INREG node is already sign extended, use the source directly.