[all-commits] [llvm/llvm-project] 0e89ff: [X86] SimplifyDemandedBits - only narrow a broadca...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0e89ff8195e994e5051f19669e1044d47120ac06
      https://github.com/llvm/llvm-project/commit/0e89ff8195e994e5051f19669e1044d47120ac06
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-09-19 (Sun, 19 Sep 2021)

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

  Log Message:
  -----------
  [X86] SimplifyDemandedBits - only narrow a broadcast source if we only have one use.

Helps with the regression noted on D109065 - don't truncate a broadcast source if the source has multiple uses.