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

[Sameer Sahasrabuddhe via Phabricator via llvm-commits]

sameerds accepted this revision.
sameerds added a comment.
This revision is now accepted and ready to land.

I would recommend saying "irreducible cycle" instead of "unstructured loop". An unstructured loop could also be an unstructured acyclic region where the entry is the header and the exit is the latch.


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