[PATCH] D147096: AMDGPU: Created a sub-register class for the return address operand in the tail call return instruction

[Matt Arsenault via Phabricator via llvm-commits]

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

Description is imprecise. It's a subclass, not a subregister class.

LGTM with fixed commit message


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https://reviews.llvm.org/D147096