From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 19407 invoked by alias); 16 Dec 2010 17:21:01 -0000 Received: (qmail 19397 invoked by uid 22791); 16 Dec 2010 17:21:00 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_TM 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; Thu, 16 Dec 2010 17:20:57 +0000 From: "aoliva at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug regression/46931] [4.6 Regression] Subversion id 167184 breaks building perlbench on power7 with debug X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: regression X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: aoliva 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: 4.6.0 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 Date: Thu, 16 Dec 2010 17:21:00 -0000 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: 2010-12/txt/msg02010.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46931 --- Comment #4 from Alexandre Oliva 2010-12-16 17:20:22 UTC --- I agree. For the sake of avoiding loss of debug info, I suggest we check that the SSA name is not referenced in debug stmts before dropping the def altogether. Want me to code that up?