[PATCH] D73978: [WIP][FPEnv] Don't transform FSUB(-0.0,X)->FNEG(X) when flushing denormals

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D73978#1893862 <https://reviews.llvm.org/D73978#1893862>, @cameron.mcinally wrote:

> Thanks again, Sanjay. That did help. I have other issues to work through on AMDGPU, but it's getting closer...


As a heads up, AMDGPU doesn’t respect the denormal attribute yet and still uses the custom subtarget features. The patch to switch is posted but held up by its dependencies


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