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From: "xry111 at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/112483] [14 Regression]
 gfortran.dg/ieee/ieee_2.f90 fails on loongarch64-linux-gnu at -O1 or above
Date: Sun, 12 Nov 2023 20:27:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112483

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |xry111 at gcc dot g=
nu.org
             Status|NEW                         |ASSIGNED
           Keywords|                            |patch
                URL|                            |https://gcc.gnu.org/piperma
                   |                            |il/gcc-patches/2023-Novembe
                   |                            |r/636200.html

--- Comment #10 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
(In reply to Xi Ruoyao from comment #8)
> (In reply to Tamar Christina from comment #7)
> > Yeah, that fold-rtx code is bogus. It's a latent bug.
> >=20
> > Optimizing copysign(x, -y) to neg(x) is just wrong.
> >=20
> > Will you be sending a patch Xi or do you want me to?
>=20
> Yes, I'm running a regression test now and I'll send the patch after it
> finishes.

https://gcc.gnu.org/pipermail/gcc-patches/2023-November/636200.html=