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

[Nuno Lopes via Phabricator via llvm-commits]

nlopes added a comment.

In D139785#3986910 <https://reviews.llvm.org/D139785#3986910>, @RalfJung wrote:

> The actual issue is that `X > 0.0` is `false` for negative NaNs

Comparisons don't look at the sign of NaN. They are not bitwise operations like fabs/fneg.


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