From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id BFA82384DEE6; Mon, 19 Feb 2024 14:14:15 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BFA82384DEE6
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1708352055;
	bh=d1cz01+zcgEnVOP2tAgU8i/mnmLIAqwEfL8ORcB2osU=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=kZL9I8Y2Rt44yeR1HzyVYMx1DltnwMWr5jUP+Ac8mehkRJNLn30pmetNXLWVM+YXt
	 Y1WRziX0RjKNwXm1iqT0Rq8mVbHEZozMGCK7SYn7dleFwK/rraz8m4ltYxXU7cdyI8
	 1zE2s5hbyDMbdhZXEjxE30ej5LEEjJO6q8cI1khc=
From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/113989] MinGW generates unaligned vmovdqa64
Date: Mon, 19 Feb 2024 14:14:15 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: target
X-Bugzilla-Version: 14.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: rguenth at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: keywords
Message-ID: <bug-113989-4-xvd2jIyMYU@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-113989-4@http.gcc.gnu.org/bugzilla/>
References: <bug-113989-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113989

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |wrong-code

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Feels like the old issue that the incoming stack in main() is not aligned as
GCC it thinks it is?  On x86_64-linux we dynamically re-align the stack:

main:
.LFB0:
        .cfi_startproc
        pushq   %rbp
        .cfi_def_cfa_offset 16
        .cfi_offset 6, -16
        movl    $1, %esi
        movq    %rsp, %rbp
        .cfi_def_cfa_register 6
        andq    $-64, %rsp
        subq    $64, %rsp
        movq    %rsp, %rdi
        call    _Z1fx

does -mstackrealign make it work?  I think there's some duplicate bugreports
about mingw and stack alignment.=