[PATCH] D62612: [InstCombine] Handle -(X-Y) --> (Y-X) for unary fneg when NSZ

[Sanjay Patel via Phabricator via llvm-commits]

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

This matches the existing fold with 2 fsubs, and I agree with the comment in the description regarding IEEE-754 - fsub doesn't need to preserve the sign bit of a NaN. LGTM.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D62612/new/

https://reviews.llvm.org/D62612