[PATCH] D127894: AMDGPU: Fix invalid liveness after si-optimize-exec-masking-pre-ra

[Matt Arsenault via Phabricator via llvm-commits]

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This was leaving behind a use at the deleted instruction which the
verifier would fail during allocation.

      

Also fix incorrectly folding if the incoming cndmask was in a
different block.


https://reviews.llvm.org/D127894

Files:
  llvm/lib/Target/AMDGPU/SIOptimizeExecMaskingPreRA.cpp
  llvm/test/CodeGen/AMDGPU/opt-exec-masking-pre-ra-update-liveness-wave32.mir
  llvm/test/CodeGen/AMDGPU/opt-exec-masking-pre-ra-update-liveness.mir

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