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

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

In D73978#1884643 <https://reviews.llvm.org/D73978#1884643>, @cameron.mcinally wrote:

> Thanks, Sanjay. I'm okay with either approach.


rGa253a2a793cd <https://reviews.llvm.org/rGa253a2a793cda34d1f6421ee9b7ca76a03fdfc59>: [SDAG] fold fsub -0.0, undef to undef rather than NaN.


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https://reviews.llvm.org/D73978