From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 6F55D385841F; Tue, 26 Mar 2024 15:34:52 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6F55D385841F DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1711467292; bh=djMXKvVbMdX+IRAXqJm5B8Ev5uRB+0ffWcAHuaG+040=; h=From:To:Subject:Date:In-Reply-To:References:From; b=Sn0zzGkXGZSuaNqTQeDIeonf/mid0mOxAhICrhLpZTvze8GT6lsFLe0OducjN0aWO UyQQYHz+pU4aAeCAaziWm7/WZrQAQ4Rv+g/vRs9Usa9Tv6QzDqUfdgArfgkI9UlmnX XVQWSa403HnRAUEYwk2OMrVFv/aef3SpoSI3bAgE= From: "rguenth at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/114057] [14 Regression] 435.gromacs fails verification with -Ofast -march={znver2,znver4} and PGO after r14-7272-g57f611604e8bab Date: Tue, 26 Mar 2024 15:34:51 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: tree-optimization X-Bugzilla-Version: 14.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: rguenth at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 14.0 X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: attachments.created 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=3D114057 --- Comment #11 from Richard Biener --- Created attachment 57816 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D57816&action=3Dedit manually reduced preprocessed source This is the TU reduced to idihs where I put flatten on, with just -Ofast -march=3Dznver2 one can reproduce the vectorization difference when reverti= ng the offending revision ontop of trunk. I'll have a closer look tomorrow.=