From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 3064 invoked by alias); 11 Jan 2010 22:00:29 -0000 Received: (qmail 2887 invoked by uid 48); 11 Jan 2010 22:00:16 -0000 Date: Mon, 11 Jan 2010 22:00:00 -0000 Message-ID: <20100111220016.2886.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/42691] problematic REG_EQUAL note added to SUBREG In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "ebotcazou at gcc dot gnu dot org" 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: 2010-01/txt/msg01278.txt.bz2 ------- Comment #2 from ebotcazou at gcc dot gnu dot org 2010-01-11 22:00 ------- The REG_EQUAL note is correct after fwprop but not after combine, so the problem lies in combine. The note should have been removed by adjust_for_new_dest since the destination of I3 has changed. -- ebotcazou at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ebotcazou at gcc dot gnu dot | |org Component|middle-end |rtl-optimization Summary|Wrong REG_EQUAL note is |problematic REG_EQUAL note |added to SUBREG node |added to SUBREG http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42691