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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/60237] isnan fails with -ffast-math Date: Mon, 17 Feb 2014 10:53:00 -0000 [thread overview] Message-ID: <bug-60237-4-7tBOTuWLeu@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-60237-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60237 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Well, -ffast-math implies -ffinite-math-only, so the compiler is assuming no NaNs or infinites are used as arguments/return values of any expression. So, if you have a program that produces NaNs anyway, you shouldn't be building it with -ffast-math, at least not with -ffinite-math-only.
next prev parent reply other threads:[~2014-02-17 10:53 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-02-17 10:41 [Bug c++/60237] New: " nathanael.schaeffer at gmail dot com 2014-02-17 10:53 ` jakub at gcc dot gnu.org [this message] 2014-02-17 11:16 ` [Bug c++/60237] " nathanael.schaeffer at gmail dot com 2014-02-17 11:26 ` glisse at gcc dot gnu.org 2014-02-17 11:38 ` nathanael.schaeffer at gmail dot com 2014-02-17 12:46 ` rguenth at gcc dot gnu.org 2014-02-17 16:16 ` nathanael.schaeffer at gmail dot com 2014-02-17 17:28 ` glisse at gcc dot gnu.org
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