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[Bug target/83240] x86_64 vectorized sqrt of denormal yields -inf when DAZ=0
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 01 Dec 2017 14:33:02 +0000
- Subject: [Bug target/83240] x86_64 vectorized sqrt of denormal yields -inf when DAZ=0
- Auto-submitted: auto-generated
- References: <bug-83240-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83240
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target| |x86_64-*-*, i?86-*-*
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
DAZ is a separate "optimization" so while it interacts with how we handle
square roots one isn't dependent on the other. Simply don't use -ffast-math if
you
are dealing with stuff like denormals.