From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 18240 invoked by alias); 7 May 2006 18:59:42 -0000 Received: (qmail 18221 invoked by uid 48); 7 May 2006 18:59:35 -0000 Date: Sun, 07 May 2006 18:59:00 -0000 Message-ID: <20060507185935.18220.qmail@sourceware.org> X-Bugzilla-Reason: CC References: Subject: [Bug rtl-optimization/27469] zero extension not eliminated In-Reply-To: Reply-To: gcc-bugzilla@gcc.gnu.org To: gcc-bugs@gcc.gnu.org From: "pinskia at gcc dot gnu dot org" 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 X-SW-Source: 2006-05/txt/msg00686.txt.bz2 List-Id: ------- Comment #1 from pinskia at gcc dot gnu dot org 2006-05-07 18:59 ------- Confirmed. It does try to do it: (insn 18 16 19 2 (set (reg:DI 79 [ x.25 ]) (zero_extend:DI (subreg/s:SI (reg/v:DI 71 [ x.25 ]) 0))) 52 {zero_extendsidi2} (insn_list:REG_DEP_TRUE 16 (nil)) (nil)) into; (insn 56 16 54 2 (set (subreg:SI (reg:DI 79 [ x.25 ]) 0) (subreg/s:SI (reg/v:DI 71 [ x.25 ]) 0)) -1 (nil) (nil)) (insn 54 56 19 2 (set (reg:DI 79 [ x.25 ]) (zero_extend:DI (subreg:SI (reg:DI 79 [ x.25 ]) 0))) 52 {zero_extendsidi2} (nil) (nil)) -- pinskia at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2006-05-07 18:59:35 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27469