[PATCH] D139785: [InstCombine] preserve signbit semantics of NAN with fold to fabs

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 481932.
spatel edited the summary of this revision.
spatel added a comment.

Patch updated:
Adjusted code comment - we are implementing a model where the signbit is specified by fabs/fneg, so don't say it is meaningless.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D139785/new/

https://reviews.llvm.org/D139785

Files:
  llvm/lib/Transforms/InstCombine/InstCombineSelect.cpp
  llvm/test/Transforms/InstCombine/fabs.ll
  llvm/test/Transforms/InstCombine/fneg-fabs.ll
  llvm/test/Transforms/InstCombine/fneg.ll

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