From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 32599 invoked by alias); 20 Feb 2005 00:09:29 -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 32552 invoked by uid 48); 20 Feb 2005 00:09:22 -0000 Date: Sun, 20 Feb 2005 11:13:00 -0000 Message-ID: <20050220000922.32551.qmail@sourceware.org> From: "pinskia at gcc dot gnu dot org" To: gcc-bugs@gcc.gnu.org In-Reply-To: <20050219223612.20097.schwab@suse.de> References: <20050219223612.20097.schwab@suse.de> Reply-To: gcc-bugzilla@gcc.gnu.org Subject: [Bug rtl-optimization/20097] [4.0 regression] ICE in reload_cse_simplify_operands X-Bugzilla-Reason: CC X-SW-Source: 2005-02/txt/msg02322.txt.bz2 List-Id: ------- Additional Comments From pinskia at gcc dot gnu dot org 2005-02-20 00:09 ------- This looks like a reload (or a target reload) issue: We have the following RTL: (insn 4097 4096 4098 236 (set (reg:BI 2598) (and:BI (ne:BI (reg/v:SI 477 [ bNotLastFrame ]) (const_int 0 [0x0])) (subreg:BI (reg:SI 2934) 0))) 66 {*cmpsi_and_0} (nil) (nil)) Note the subreg here. We exand it to: (insn 5994 4096 5995 236 (set (reg:SI 2 r2) (reg:SI 131 f3 [2934])) 4 {*movsi_internal} (nil) (nil)) (insn 5995 5994 5996 236 (set (reg:SI 262 p6) (reg:SI 2 r2)) 4 {*movsi_internal} (nil) (nil)) (insn 5996 5995 4097 236 (set (reg:SI 2 r2) (reg/v:SI 148 f20 [orig:477 bNotLastFrame ] [477])) 4 {*movsi_internal} (nil) (nil))(insn 4097 5996 4098 236 (set (reg:BI 262 p6 [2598]) (and:BI (ne:BI (reg:SI 2 r2) (const_int 0 [0x0])) (reg:BI 262 p6))) 66 {*cmpsi_and_0} (nil) (nil)) So either we have a reload issue or we have a target issue. -- What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed| |1 Last reconfirmed|0000-00-00 00:00:00 |2005-02-20 00:09:20 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20097