From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 80C543858413; Wed, 19 Jul 2023 11:18:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 80C543858413 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1689765492; bh=Ff7/TP8u9U8dOBZs/MNL91a9/g9lOD/QgEaKpsGzHrY=; h=From:To:Subject:Date:In-Reply-To:References:From; b=RKkj+G0P3eUxKbNlduNGYKI1OQPyFyH31G9iHWz6aE4fvUiQOMuES8pTQ+3KcwUc1 XrTa0NRFgM/pi6mUKkCO2MiuXKww1Et2rcm3pvMktsmHQg3SMJebgwwu90z2SiNfOu AhjOoR9qvyCaOCE20dfYZBpx4Fd8ygQsU9H+e1Ys= From: "xry111 at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/110738] GCC trunk failed to do some optimizations since GCC-8 Date: Wed, 19 Jul 2023 11:18:12 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: xry111 at gcc dot gnu.org X-Bugzilla-Status: RESOLVED X-Bugzilla-Resolution: INVALID 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: cc 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=3D110738 Xi Ruoyao changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |xry111 at gcc dot gnu.org --- Comment #4 from Xi Ruoyao --- (In reply to Shaohua Li from comment #3) > Would this test case be interesting? If no, I won't report other similar > issues. >=20 > https://godbolt.org/z/9xr1rv37s But it works at -O2. So I suppose this is just an effect of disabling some optimizations in -O1, and I guess the change is likely deliberate.=