From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29074 invoked by alias); 16 Sep 2011 15:02:58 -0000 Received: (qmail 29063 invoked by uid 22791); 16 Sep 2011 15:02:57 -0000 X-SWARE-Spam-Status: No, hits=-2.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 X-Spam-Check-By: sourceware.org Received: from localhost (HELO gcc.gnu.org) (127.0.0.1) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 16 Sep 2011 15:02:44 +0000 From: "hubicka at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug lto/50430] Constructors of static external vars are throwed away leading to missed optimizations (and ipa-cp ICE). Date: Fri, 16 Sep 2011 15:42:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: lto X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: hubicka at gcc dot gnu.org X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org X-SW-Source: 2011-09/txt/msg01185.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50430 --- Comment #2 from Jan Hubicka 2011-09-16 15:02:42 UTC --- Created attachment 25306 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25306 testcase One will need to revert the gimple-fold.c patch mentioned above to get an error. Otherwise it is just missed optimization. /abuild/jh/trunk-install/bin/g++ -O2 -flto -fuse-linker-plugin -Ur -nostdlib *.ii -fpermissive -std=c++0x lto1: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See for instructions. lto-wrapper: /abuild/jh/trunk-install/bin/g++ returned 1 exit status