[PATCH] D101546: [AMDGPU] Fix v_swap_b32 formation on physical registers

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> We should be using liveness scans starting from the bottom of the block which do not need kill flags

To do this efficiently I guess the whole pass needs to be changed to work bottom-up in each basic block. I'd prefer to leave that for a separate patch.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D101546/new/

https://reviews.llvm.org/D101546