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Subject: [Bug target/104781] [12 regression] SEGV in _Unwind_GetGR during
 i386 Ada bootstrap
Date: Fri, 04 Mar 2022 15:04:12 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104781

--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Uro=C5=A1 Bizjak from comment #3)
> Comment on attachment 52563 [details]
> A patch
>=20
> >From ba4854c13c4aaa5b50127f23cb09cf05e3eb229d Mon Sep 17 00:00:00 2001
> >From: "H.J. Lu" <hjl.tools@gmail.com>
> >Date: Fri, 4 Mar 2022 05:53:14 -0800
> >Subject: [PATCH] x86: Disable AVX/SSE on unwind-c.c and unwind-dw2.c
> >
> >Since %ecx can't be used for both DRAP register and __builtin_eh_return,
> >we must avoid stack realignment when __builtin_eh_return is used.  Since
>=20
> Isn't this solved with PR104362?

It may not be sufficient for Solaris.=