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From: "ebotcazou at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/54412] minimal 32-byte stack alignment with -mavx on
 64-bit Windows
Date: Thu, 28 Mar 2024 20:26:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D54412

--- Comment #44 from Eric Botcazou <ebotcazou at gcc dot gnu.org> ---
> Thank you, Dmitry, but that particular solution may not be possible for m=
e.
> When I try compiling with -mstackrealign -mpreferred-stack-boundary=3D5
> -mincoming-stack-boundary=3D5 instead of forcing unaligned moves I get
> "cc1.exe: error: '-mpreferred-stack-boundary=3D5' is not between 3 and 4"=
. Is
> that this bug in a different form, something that should be filed
> separately, or known and intended behavior?

No, it's the same issue: 32-byte stack alignment is not supported with SEH.=