[PATCH] D106498: AMDGPU: Treat IMPLICIT_DEF like a constant lanemask source

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D106498#2907682 <https://reviews.llvm.org/D106498#2907682>, @foad wrote:

> Seems to cause 2 lit test failures on my Release+Asserts build:
>
>   LLVM :: CodeGen/AMDGPU/loop_break.ll
>   LLVM :: CodeGen/AMDGPU/sgpr-control-flow.ll

9b1bcaea4e0e32636e13e767ecee4de398ce7bd2 <https://reviews.llvm.org/rG9b1bcaea4e0e32636e13e767ecee4de398ce7bd2>, I forgot to squash this


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D106498/new/

https://reviews.llvm.org/D106498