From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 1D8423858C66; Wed, 15 Feb 2023 08:17:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 1D8423858C66 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1676449058; bh=NDaU+2o9krKTFoDKFrEcGa6R1OZ3fJgTHMKehrALLlA=; h=From:To:Subject:Date:In-Reply-To:References:From; b=J7gxvkAG3dyfauFD7JF9fr7AO13ZDeOU1hFbZwEqAcioQO0Dxb1q38F/r12LplRTT PcK//+EMFI2ecw4UG3XJatgUkLlE3RXCshT2T+whKFG+ggL18asMuCwK2pmbX6SWDF Rf7cSEnP6mshBTlAUk0EqzfEQ5zVXd4NawyNKPss= From: "dcb314 at hotmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/108718] [10/11/12/13 Regression] csmith: possible bad code with -O2 Date: Wed, 15 Feb 2023 08:17:36 +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: 13.0 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: dcb314 at hotmail dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P2 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 10.5 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=3D108718 --- Comment #8 from David Binderman --- (In reply to David Binderman from comment #7) > After about 20 minutes of reduction, cvise started going the wrong way. Second reduction now running, with better script: /usr/bin/gcc -c -w bug883.c && \ /home/dcb36/gcc/results/bin/gcc -w -O1 bug883.c && (./a.out 1 | fgrep "g_5[i][j].f4 : C953D56F") && /home/dcb36/gcc/results/bin/gcc -w -O2 bug883= .c && (./a.out 1 | fgrep "g_5[i][j].f4 : 367D9AB8")=