From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 25582 invoked by alias); 18 Jun 2007 12:34:04 -0000 Received: (qmail 25504 invoked by uid 48); 18 Jun 2007 12:33:53 -0000 Date: Mon, 18 Jun 2007 12:34:00 -0000 Message-ID: <20070618123353.25503.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/32372] [4.3 Regression] ICE in df_refs_verify, at df-scan.c:4065 In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "zadeck at naturalbridge dot com" 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: 2007-06/txt/msg01462.txt.bz2 ------- Comment #1 from zadeck at naturalbridge dot com 2007-06-18 12:33 ------- I believe that the failure is due to a an insn illegally sharing with a reg_equal note. Insn 8 is modified in regmove. When this happens, the reg_equal note in insn 22 magically changes. That reg_equal note was changed last in cse. -- zadeck at naturalbridge dot com changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|zadeck at naturalbridge dot |bonzini at gnu dot org |com | Status|UNCONFIRMED |ASSIGNED Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2007-06-18 12:33:52 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32372