From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 7323F3858C54; Mon, 27 Mar 2023 19:15:19 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 7323F3858C54 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1679944519; bh=1uthMQ/gdAHTFTIm3UQdbMAd1z+9nVxHe4n9fRFtKL0=; h=From:To:Subject:Date:In-Reply-To:References:From; b=rDX8RcW70VSf7wy8EbHbLWgAoXu5uR449OArZXTmP8r67FptA/GjSZNO1vF2qTYzh 5Zq82eIWGVBQxy1/hWXv3Yryk+Rx4DttLlsS7ExcnKGvsNZqiy4EEE1LwXgBrVHZgy 4guM/eljJkTbuo4pQuvH2lq8zQd2IkRDHAR4lYhM= From: "ubizjak at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/109276] [11/12/13 Regression] ICE: in assign_stack_local_1, at function.cc:429 with -mpreferred-stack-boundary=2 Date: Mon, 27 Mar 2023 19:15:19 +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: 12.2.0 X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: ubizjak at gmail dot com X-Bugzilla-Status: ASSIGNED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: jakub at gcc dot gnu.org X-Bugzilla-Target-Milestone: 11.4 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=3D109276 --- Comment #15 from Uro=C5=A1 Bizjak --- (In reply to Jakub Jelinek from comment #13) > asks for a DImode stack slot, ix86_local_alignment newly doesn't lower the > alignment > which isn't good for -mpreferred-stack-boundary=3D2. IIRC, DImode FILD/FIST(P) instructions execute faster when memory is aligne= d to 64 bits. *If* it is possible, 64 bit alignment is preferred.=