From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-prs-return-20472-listarch-gcc-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 18225 invoked by alias); 16 Jul 2002 01:16:03 -0000
Mailing-List: contact gcc-prs-help@gcc.gnu.org; run by ezmlm
Precedence: bulk
List-Archive: <http://gcc.gnu.org/ml/gcc-prs/>
List-Post: <mailto:gcc-prs@gcc.gnu.org>
List-Help: <mailto:gcc-prs-help@gcc.gnu.org>
Sender: gcc-prs-owner@gcc.gnu.org
Received: (qmail 18152 invoked by uid 71); 16 Jul 2002 01:16:02 -0000
Resent-Date: 16 Jul 2002 01:16:02 -0000
Resent-Message-ID: <20020716011602.18151.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, Andrew Pinski <pinskia@physics.uc.edu>
Received: (qmail 14679 invoked from network); 16 Jul 2002 01:12:34 -0000
Received: from unknown (HELO physunc.phy.uc.edu) (129.137.4.6)
  by sources.redhat.com with SMTP; 16 Jul 2002 01:12:34 -0000
Received: from lead.geop.uc.edu (lead.geop.uc.edu [10.44.6.212])
	by physunc.phy.uc.edu (8.9.3/8.9.3) with ESMTP id VAA26385
	for <gcc-gnats@gcc.gnu.org>; Mon, 15 Jul 2002 21:12:31 -0400 (EDT)
Received: (from pinskia@localhost)
	by lead.geop.uc.edu (8.11.6/8.9.3) id g6G1CW531259;
	Mon, 15 Jul 2002 21:12:32 -0400
Message-Id: <200207160112.g6G1CW531259@lead.geop.uc.edu>
Date: Mon, 15 Jul 2002 18:16:00 -0000
From: Andrew Pinski <pinskia@physics.uc.edu>
To: gcc-gnats@gcc.gnu.org
X-Send-Pr-Version: 3.113
Subject: c/7321: ice on vectors with -O3 and -m3dnow
X-SW-Source: 2002-07/txt/msg00474.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         7321
>Category:       c
>Synopsis:       ice on vectors with -O3 and -m3dnow
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 15 18:16:02 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Andrew Pinski
>Release:        3.2 20020715 (experimental)
>Organization:
Home
>Environment:
System: Linux lead.geop.uc.edu 2.4.18-0.13 #1 Mon Apr 1 14:59:55 EST 2002 i686 unknown
Architecture: i686

	
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: /home/gates/pinskia/src/gnu/gcc/src/configure --target=i686-pc-linux-gnu --prefix=/home/gates/pinskia/linux --enable-threads=posix --enable-shared
>Description:
gcc -O3 -m3dnow vector.c produces the following errorvector.c: In function `tempf':
vector.c:20: error: unable to find a register to spill in class `FLOAT_REGS'
(insn:HI 29 27 30 0 0x4007ae80 (set (reg:SF 8 st(0) [70])
        (minus:SF (subreg:SF (reg/v:DI 30 rmm1 [66]) 0)
            (subreg:SF (reg/v:DI 30 rmm1 [66]) 4))) 556 {*fop_sf_1_nosse} (insn_list 24 (nil))
    (expr_list:REG_EQUIV (mem:SF (reg/v/f:SI 2 ecx [60]) [3 S4 A32])
        (expr_list:REG_DEAD (reg/v:DI 30 rmm1 [66])
            (nil))))
vector.c:20: internal compiler error: Internal compiler error in spill_failure, at reload1.c:1908
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

>How-To-Repeat:
gcc -O3 -m3dnow vector.c
vector.c follows:
        floatvect2 temp={x[0],x[1]};
        floatvect2 temp1={y[0],y[1]};
        resfloatvect2 temp2;
        temp2.vector=temp+temp1;
        x[0]=temp2.f[0];
        x[1]=temp2.f[1];

typedef float floatvect2 __attribute__((mode(V2SF)));

typedef union
{
    floatvect2 vector;
    float f[2];
}resfloatvect2;

void tempf(float *a, float *b, float *c)
{
    floatvect2 a1=*(floatvect2*)a;
    floatvect2 b1=*(floatvect2*)b;
    floatvect2 rb1={b[1],b[0]};
    resfloatvect2 r1;
    resfloatvect2 r2;
    r1.vector=a1*b1;
    r2.vector=a1*rb1;
    c[0]=r1.f[0]-r1.f[1];
    c[1]=r2.f[0]+r2.f[1];
}

>Fix:
unknown
>Release-Note:
>Audit-Trail:
>Unformatted: