[PATCH] D73939: [AMDGPU] Fix infinite loop with fma combines

[Matt Arsenault via Phabricator via llvm-commits]

arsenm accepted this revision.
arsenm added a comment.

LGTM to unblock this, but we do need to consolidate this logic. Either all of the AMDGPU fneg combines should be moved to generic code, or at least the AMDGPU code should start using isNegatibleForFree


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https://reviews.llvm.org/D73939