From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 5C0923851C01; Fri, 29 May 2020 19:37:26 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 5C0923851C01 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1590781046; bh=ErJIrVCODKFhbBjnIRgsB8+ViDyGv9sPVNsQD/EEAbc=; h=From:To:Subject:Date:In-Reply-To:References:From; b=pLGatcMIiUVMDsaP+EpjuXscy/2L2LYI+xQrRmEe617w0z/w3mYh6ZWE9VirI9yA/ JLl243oexQNuogv+Q3H59sa/1IWoQkvTd5Jut9DO28dkZEQruDxsAIBLR2hUW03rpw Ixc5mdpov61x7wfKE3Om/8kzftJcsH93Ieu1F2+M= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug middle-end/95052] [9/10/11 Regression] Excess padding of partially initialized strings/char arrays Date: Fri, 29 May 2020 19:37:26 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: middle-end X-Bugzilla-Version: 11.0 X-Bugzilla-Keywords: missed-optimization X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub 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: 9.4 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 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 29 May 2020 19:37:26 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95052 --- Comment #12 from Jakub Jelinek --- Reduced testcase with -O2 -fconserve-stack: void bar (char *); void foo (void) { char buf[70] =3D ""; bar (buf); }=