From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13414 invoked by alias); 1 Aug 2004 16:09:48 -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 13400 invoked by uid 48); 1 Aug 2004 16:09:46 -0000 Date: Sun, 01 Aug 2004 16:09:00 -0000 Message-ID: <20040801160946.13399.qmail@sourceware.org> From: "zhangjie at magima dot com dot cn" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20040627065304.16225.debian-gcc@lists.debian.org> References: <20040627065304.16225.debian-gcc@lists.debian.org> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug tree-optimization/16225] [3.5 regression] ICE: verify_ssa failed. X-Bugzilla-Reason: CC X-SW-Source: 2004-08/txt/msg00033.txt.bz2 List-Id: ------- Additional Comments From zhangjie at magima dot com dot cn 2004-08-01 16:09 ------- I add the following check in verify_flow_insensitive_alias_info (). It shows that there are some other mark_call_clobbered () call sites, which will fail the check. I'm going to look them closer. Index: tree-ssa.c =================================================================== RCS file: /cvsroot/gcc/gcc/gcc/tree-ssa.c,v retrieving revision 2.26 diff -C3 -p -r2.26 tree-ssa.c *** tree-ssa.c 29 Jul 2004 20:16:26 -0000 2.26 --- tree-ssa.c 1 Aug 2004 14:38:57 -0000 *************** verify_flow_insensitive_alias_info (void *** 368,373 **** --- 368,386 ---- debug_variable (alias); goto err; } + + if (is_call_clobbered (var) && !is_call_clobbered (alias)) + { + error ("Variable is call-clobbered, but its alias is not."); + debug_variable (alias); + goto err; + } + else if (!is_call_clobbered (var) && is_call_clobbered (alias)) + { + error ("Variable is not call-clobbered, but its alias is."); + debug_variable (alias); + goto err; + } } } -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16225