From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 11537 invoked by alias); 4 Apr 2004 23:31:41 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 11508 invoked by alias); 4 Apr 2004 23:31:40 -0000 Date: Sun, 04 Apr 2004 23:31:00 -0000 Message-ID: <20040404233140.11507.qmail@sources.redhat.com> From: "dave at hiauly1 dot hia dot nrc dot ca" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040321182857.14671.danglin@gcc.gnu.org> References: <20040321182857.14671.danglin@gcc.gnu.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug bootstrap/14671] [3.3/3.4 regression] caller-save.c:491: internal compiler error: Segmentation fault X-Bugzilla-Reason: CC X-SW-Source: 2004-04/txt/msg00374.txt.bz2 List-Id: ------- Additional Comments From dave at hiauly1 dot hia dot nrc dot ca 2004-04-04 23:31 ------- Subject: Re: [3.3/3.4 regression] caller-save.c:491: int > ------- Additional Comments From mmitchel at gcc dot gnu dot org 2004-04-04 > 23:05 ------- > Dave, can you confirm whether or not this PR is fixed? This PR is not fixed and not fully understood. At the moment, the effect on 3.3/3.4 is hypothetical. Clearly, the in_use bit for the object is not set or has been clobbered. The stage1 compiler doesn't have the same problem. The enclosed patch appears to "fix" the problem but it doesn't explain why things broke with Zdenek's patch of March 18. Dave -- J. David Anglin dave.anglin@nrc-cnrc.gc.ca National Research Council of Canada (613) 990-0752 (FAX: 952-6602) Index: loop.c =================================================================== RCS file: /cvs/gcc/gcc/gcc/loop.c,v retrieving revision 1.497 diff -u -3 -p -r1.497 loop.c --- loop.c 18 Mar 2004 16:42:31 -0000 1.497 +++ loop.c 4 Apr 2004 23:21:30 -0000 @@ -537,10 +537,7 @@ loop_optimize (rtx f, FILE *dumpfile, in struct loop *loop = &loops->array[i]; if (! loop->invalid && loop->end) - { - scan_loop (loop, flags); - ggc_collect (); - } + scan_loop (loop, flags); } end_alias_analysis (); -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14671