[PATCH] D117690: AMDGPU/GlobalISel: Directly diagnose return value use for FP atomics

[Jay Foad via Phabricator via llvm-commits]

foad added a comment.

> Previously we were falling back to the DAG on selection
> failure, where it would emit this error and then fail again.

Why is that a problem? Is this just a temporary thing, while you are testing with the fallback to dag enabled?

To put it another way, what's so special about this case that legalization has to fail harder than other cases?


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https://reviews.llvm.org/D117690