From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18713 invoked by alias); 16 Feb 2012 19:03:16 -0000 Received: (qmail 18704 invoked by uid 22791); 16 Feb 2012 19:03:15 -0000 X-SWARE-Spam-Status: No, hits=-2.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00,SUBJ_OBFU_PUNCT_FEW,SUBJ_OBFU_PUNCT_MANY 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 Feb 2012 19:02:21 +0000 From: "ro at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/52287] New: [4.7 regression] ICE in ready_remove_first, at haifa-sched.c:1927 Date: Thu, 16 Feb 2012 19:18:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: bootstrap X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ro 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: 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: 2012-02/txt/msg01696.txt.bz2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52287 Bug #: 52287 Summary: [4.7 regression] ICE in ready_remove_first, at haifa-sched.c:1927 Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: bootstrap AssignedTo: unassigned@gcc.gnu.org ReportedBy: ro@gcc.gnu.org CC: bernds@gcc.gnu.org, ebotcazou@gcc.gnu.org Host: sparc-sun-solaris2.8 Target: sparc-sun-solaris2.8 Build: sparc-sun-solaris2.8 Between rev. 184203 and 184303, Solaris 8/SPARC bootstrap broke in stage2: $ cc1plus -fpreprocessed reginfo.ii -quiet -mcpu=v9 -g -O2 -fno-exceptions -fno-rtti -o reginfo.s /vol/gcc/src/hg/trunk/local/gcc/reginfo.c: In function 'int memory_move_secondary_cost(machine_mode, reg_class_t, bool)': /vol/gcc/src/hg/trunk/local/gcc/reginfo.c:716:1: internal compiler error: in ready_remove_first, at haifa-sched.c:1927 gdb finds (gdb) up #1 0x02ae1c64 in ready_remove_first (ready=0x346e558) at /vol/gcc/src/hg/trunk/local/gcc/haifa-sched.c:1927 1927 gcc_assert (QUEUE_INDEX (t) == QUEUE_READY); (gdb) p t $1 = (rtx) 0xf95db748 (gdb) pr (debug_insn 49 48 50 6 (var_location:SI from (reg/v:SI 119 [ rclass ])) -1 (nil)) I wonder if this could be related to 2012-02-14 Bernd Schmidt * haifa-sched.c (prune_ready_list): Ensure that if there is a sched-group insn, it either remains alone or the entire list is pruned. Strangely, this doesn't occur on Solaris 9 and up. Rainer