[all-commits] [llvm/llvm-project] b5d6ad: [MachineCopyPropagation] Handle propagation of und...

[Carl Ritson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b5d6ad20e182318b2048a923eac56a198250ed0a
      https://github.com/llvm/llvm-project/commit/b5d6ad20e182318b2048a923eac56a198250ed0a
  Author: Carl Ritson <carl.ritson at amd.com>
  Date:   2021-10-07 (Thu, 07 Oct 2021)

  Changed paths:
    M llvm/lib/CodeGen/MachineCopyPropagation.cpp
    A llvm/test/CodeGen/AMDGPU/undef-copy-propagation.mir

  Log Message:
  -----------
  [MachineCopyPropagation] Handle propagation of undef copies

When propagating undefined copies the undef flag must also be
propagated.

Reviewed By: foad

Differential Revision: https://reviews.llvm.org/D111219