[PATCH] D147866: ValueTracking: Implement computeKnownFPClass for minnum/maxnum
Matt Arsenault via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Apr 14 12:15:27 PDT 2023
arsenm added a comment.
In D147866#4269348 <https://reviews.llvm.org/D147866#4269348>, @jcranmer-intel wrote:
> `minnum(0.0, 0.0)` can return `-0.0`, so the handling around positive/negative zero isn't correct.
How is it not correct? If either operand can be +/- 0 such is reported
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https://reviews.llvm.org/D147866/new/
https://reviews.llvm.org/D147866
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