From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 2516 invoked by alias); 23 May 2002 11:36:04 -0000 Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Archive: List-Post: List-Help: Sender: gcc-prs-owner@gcc.gnu.org Received: (qmail 2493 invoked by uid 71); 23 May 2002 11:36:02 -0000 Resent-Date: 23 May 2002 11:36:02 -0000 Resent-Message-ID: <20020523113602.2492.qmail@sources.redhat.com> Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer) Resent-To: nobody@gcc.gnu.org Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org Resent-Reply-To: gcc-gnats@gcc.gnu.org, gert.vervoort@philips.com Received:(qmail 1110 invoked by uid 61); 23 May 2002 11:28:50 -0000 Message-Id:<20020523112850.1109.qmail@sources.redhat.com> Date: Thu, 23 May 2002 04:36:00 -0000 From: gert.vervoort@philips.com Reply-To: gert.vervoort@philips.com To: gcc-gnats@gcc.gnu.org X-Send-Pr-Version:gnatsweb-2.9.3 (1.1.1.1.2.31) Subject: optimization/6783: mmx intrinsics problem with -O2 and -O3 opt. X-SW-Source: 2002-05/txt/msg00722.txt.bz2 List-Id: >Number: 6783 >Category: optimization >Synopsis: mmx intrinsics problem with -O2 and -O3 opt. >Confidential: no >Severity: serious >Priority: medium >Responsible: unassigned >State: open >Class: wrong-code >Submitter-Id: net >Arrival-Date: Thu May 23 04:36:02 PDT 2002 >Closed-Date: >Last-Modified: >Originator: gert.vervoort@philips.com >Release: gcc-3.1 >Organization: >Environment: vervoort@linux22 [68] > uname -a Linux linux22 2.4.18 #2 SMP Fri Apr 19 16:21:16 CEST 2002 i686 unknown vervoort@linux22 [69] > /cadappl/gcc/3.1/bin/gcc -v Reading specs from /cadappl/gcc/3.1/lib/gcc-lib/i686-pc-linux-gnu/3.1/specs Configured with: /home/hooft/Level/Work/gcc/gcc-3.1/gcc-3.1/configure --prefix=/cadappl/gcc/3.1 --enable-shared --enable-languages=c,c++,f77 Thread model: single gcc version 3.1 >Description: gcc 3.1 generates wrong code when using mmx intrinsics with '-O2' and '-O3'. '-O' works oke. >How-To-Repeat: vervoort@linux22 [80] > /cadappl/gcc/3.1/bin/gcc -O -mmmx intrinsic_mmx_add.c vervoort@linux22 [81] > ./a.out 11 22 33 44 55 66 77 88 vervoort@linux22 [82] > /cadappl/gcc/3.1/bin/gcc -O2 -mmmx intrinsic_mmx_add. vervoort@linux22 [83] > ./a.out 68 253 2 64 255 255 42 144 >Fix: >Release-Note: >Audit-Trail: >Unformatted: ----gnatsweb-attachment---- Content-Type: application/x-unknown-content-type-c_auto_file; name="intrinsic_mmx_add.c" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="intrinsic_mmx_add.c" I2luY2x1ZGUgPG1taW50cmluLmg+CgptYWluKCkKewogICAgdW5zaWduZWQgY2hhciBhWzhdID0g ezEsMiwzLDQsNSw2LDcsOH07CiAgICB1bnNpZ25lZCBjaGFyIGJbOF0gPSB7MTAsMjAsMzAsNDAs NTAsNjAsNzAsODB9OwogICAgdW5zaWduZWQgY2hhciBjWzhdID0gezAsMCwwLDAsMCwwLDAsMH07 CiAgICBfX202NCBtMCxtMSxtMjsKICAgIGludCBpOwogICAgCiAgICBtMCA9ICooX19tNjQgKilh OwogICAgbTEgPSAqKF9fbTY0ICopYjsKICAgIG0yID0gX21tX2FkZHNfcHU4KG0wLG0xKTsKICAg ICooX19tNjQgKiljID0gbTI7CgogICAgX21tX2VtcHR5KCk7CgogICAgZm9yKGk9MDtpPDg7aSsr KQogICAgICAgIHByaW50ZigiJWQgIiwgY1tpXSk7CiAgICBwcmludGYoIlxuIik7CgoKfQo=