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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/55522] -funsafe-math-optimizations is unexpectedly
 harmful, especially w/ -shared
Date: Fri, 09 Sep 2022 10:50:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D55522

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|x86_64-*-*, i?86-*-*        |x86_64-*-*, i?86-*-*,
                   |                            |aarch64, alpha, arm, ia64,
                   |                            |loongarch, mips, sparc
           Keywords|                            |documentation

--- Comment #18 from Richard Biener <rguenth at gcc dot gnu.org> ---
I'll note that I can't find any documentation for this link-time behavior w=
hich
triggers for -Ofast, -ffast-math and -funsafe-math-optimizations but also
with -ffast-math -fno-unsafe-math-optimizations.

I've adjusted the list of affected targets.  What their crtfastmath.o actua=
lly
does would need to be determined, but it for sure will have the same spread=
ing
effect.=