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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/105414] constant folding for fmin/max(snan,
 snan) is wrong
Date: Thu, 28 Apr 2022 07:07:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105414

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-04-28
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
I think you want

 (if (!tree_expr_maybe_signaling_nan_p (@0))
...

instead.=