From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A37A03858C5E; Thu, 12 Oct 2023 09:03:36 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A37A03858C5E DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1697101416; bh=nVmchNjPC3Wi8+71o1ASmWdlSersCOdMgkORl9YqrhM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=EYYt2ooaWjOME75gTf0nnJmkxXGLvvHBinR/ixyGUN1IthU0lmFNed0mgeBLnhkBM kqKNJE2wrZ6BbRPcKEvydGzHzosv6ngWVEaqKKjX17A2N6ZV+SO7G+WuSEXNHZU6ZQ 11dANbf2I2aJU+DV0NtKUTEOlqf45NQ5/b/VBmT4= From: "kuzume at axell dot co.jp" To: gcc-bugs@gcc.gnu.org Subject: [Bug target/111755] The built-in memset function in GCC inadvertently generates code like "vst1.8 {d8-d9}, [sp:64]", which assumes an 8-byte alignment on the stack pointer $sp, leading to alignment violations Date: Thu, 12 Oct 2023 09:03:35 +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: 9.2.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: kuzume at axell dot co.jp X-Bugzilla-Status: WAITING 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=3D111755 --- Comment #4 from kuzume --- I apologize, but I will retract this report. I've realized that the IRQ han= dler call of a certain RTOS I'm using is invoking with $sp as a multiple of 4, n= ot 8. This violates the ARM ABI convention.=