From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 29791 invoked by alias); 22 Jan 2012 10:35:07 -0000 Received: (qmail 29602 invoked by uid 22791); 22 Jan 2012 10:35:06 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,TW_GC 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; Sun, 22 Jan 2012 10:34:54 +0000 From: "schwab@linux-m68k.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug rtl-optimization/49847] [4.6/4.7 Regression] m68k gcj-4.6 NULL deref in fold_rtx (prev_insn_cc0 == NULL) Date: Sun, 22 Jan 2012 12:29:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: rtl-optimization X-Bugzilla-Keywords: ice-on-valid-code X-Bugzilla-Severity: critical X-Bugzilla-Who: schwab@linux-m68k.org X-Bugzilla-Status: NEW X-Bugzilla-Priority: P4 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: 4.6.3 X-Bugzilla-Changed-Fields: Status Last reconfirmed Ever Confirmed 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: 2012-01/txt/msg02503.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49847 Andreas Schwab changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2012-01-22 Ever Confirmed|0 |1 --- Comment #7 from Andreas Schwab 2012-01-22 10:34:24 UTC --- Previously set_fast_math_flags was only called if -Ofast was enabled, now it is called unconditionally (with set=0/1 according to -Ofast), which clobbers flag_trapping_math unless frontend_set_flag_trapping_math is set. The frontends need to be updated to properly set the frontend_set_... flags.