From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 804363858281; Tue, 12 Mar 2024 06:35:19 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 804363858281 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1710225319; bh=4y7K/x2fpj6pl8UeE+mxOiB0GBKw4TAS5ALplmxVSVg=; h=From:To:Subject:Date:In-Reply-To:References:From; b=IjQnx6T3C0Irs0uJBs/eV1ripu7Qon4WPzXJcJ1kkXZe5KBxujwMDc0e3K6eX+09W VKLmp+G6O8ORmMXxye/jGg2d+cYS/FHTvq8UqtFRThxKL5g8pc3AQMKKCvofM1rSC+ evfP4QSVPq9I9jzPUz57gBHULK5/K37yPpr4Ecdw= From: "liuhongt at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/110027] [11/12/13/14 regression] Misaligned vector store on detect_stack_use_after_return Date: Tue, 12 Mar 2024 06:35:18 +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: 13.1.1 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: liuhongt at gcc dot gnu.org X-Bugzilla-Status: NEW 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: Message-ID: In-Reply-To: References: 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: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110027 --- Comment #14 from Hongtao Liu --- diff --git a/gcc/cfgexpand.cc b/gcc/cfgexpand.cc index 0de299c62e3..92062378d8e 100644 --- a/gcc/cfgexpand.cc +++ b/gcc/cfgexpand.cc @@ -1214,7 +1214,7 @@ expand_stack_vars (bool (*pred) (size_t), class stack_vars_data *data) { if (data->asan_vec.is_empty ()) { - align_frame_offset (ASAN_RED_ZONE_SIZE); + align_frame_offset (MAX (alignb, ASAN_RED_ZONE_SIZE)); prev_offset =3D frame_offset.to_constant (); } prev_offset =3D align_base (prev_offset, This can fix the issue, but not sure if it's the correct way.=