From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id ED5263858D37; Thu, 29 Sep 2022 11:01:17 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org ED5263858D37 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1664449277; bh=JjPIw4qjGkPqMeymRqDCzX5Le9o2dPk1RuzORqDD2mQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=kzibATA1tu/2YlzKEcKixZtEBGWjoZ+QSSlei0nzKdhWpeyvbzoHyYAvSjEXkEB/X 4mMnr62vW0T9A0JJ9Fj9yetqftAsYRDKy6xZUcw5WvO9GR2TTwUxrxLqNxFuPLYNpA L677y4m4kfCXGlsGU3ueECuPCmyZUUmFJi3RvQYw= From: "jakub at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/107078] LTO is causing that firebird build is core dumping Date: Thu, 29 Sep 2022 11:01:17 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Version: 12.2.1 X-Bugzilla-Keywords: wrong-code X-Bugzilla-Severity: normal X-Bugzilla-Who: jakub at gcc dot gnu.org 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=3D107078 --- Comment #7 from Jakub Jelinek --- Then as documented, -fno-lifetime-dse or -flifetime-dse=3D1 can be a tempor= ary workaround, but as has been said, such code is undefined behavior and shoul= d be fixed in the application. See https://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#index-flifetime-ds= e=