Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

[Richard Henderson]

The following reply was made to PR optimization/8334; it has been noted by GNATS.

From: Richard Henderson <rth@redhat.com>
To: Eric Botcazou <ebotcazou@libertysurf.fr>
Cc: Joe Buck <jbuck@synopsys.com>, gcc-gnats@gcc.gnu.org,
   kargl@apl.washington.edu, gcc-bugs@gcc.gnu.org
Subject: Re: optimization/8334: Simple code produces ICE in gcc-3.2.1
Date: Wed, 11 Dec 2002 15:34:58 -0800

 On Fri, Nov 01, 2002 at 01:12:29AM +0100, Eric Botcazou wrote:
 > http://gcc.gnu.org/ml/gcc-patches/2002-10/msg01825.html
 
 Ok.
 
 
 r~

Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

[Eric Botcazou]

The following reply was made to PR optimization/8334; it has been noted by GNATS.

From: Eric Botcazou <ebotcazou@libertysurf.fr>
To: Joe Buck <jbuck@synopsys.com>
Cc: gcc-gnats@gcc.gnu.org,
 kargl@apl.washington.edu,
 gcc-bugs@gcc.gnu.org
Subject: Re: optimization/8334: Simple code produces ICE in gcc-3.2.1
Date: Fri, 1 Nov 2002 01:12:29 +0100

 > This bug appears to no longer be present in 20021031, so evidently some
 > change between the 25th and today fixed it, not sure which one.
 >
 > In any case, I am closing the bug
 
 I think you should wait for the testcase to be added to the testsuite bef=
 ore=20
 formally closing the bug.
 
 http://gcc.gnu.org/ml/gcc-patches/2002-10/msg01825.html
 
 --=20
 Eric Botcazou

Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

[Joe Buck]

The following reply was made to PR optimization/8334; it has been noted by GNATS.

From: Joe Buck <jbuck@synopsys.com>
To: gcc-gnats@gcc.gnu.org, kargl@apl.washington.edu, gcc-bugs@gcc.gnu.org
Cc:  
Subject: Re: optimization/8334: Simple code produces ICE in gcc-3.2.1
Date: Thu, 31 Oct 2002 13:36:06 -0800

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8334
 
 This bug appears to no longer be present in 20021031, so evidently some 
 change
 between the 25th and today fixed it, not sure which one.
 
 In any case, I am closing the bug
 

Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

[jbuck]

Synopsis: Simple code produces ICE in gcc-3.2.1

State-Changed-From-To: open->closed
State-Changed-By: jbuck
State-Changed-When: Thu Oct 31 13:36:41 2002
State-Changed-Why:
    No longer present in 20021031: unknown which patch
    fixed the problem.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8334

Re: optimization/8334: Simple code produces ICE in gcc-3.2.1

[Joe Buck]

The following reply was made to PR optimization/8334; it has been noted by GNATS.

From: Joe Buck <jbuck@synopsys.com>
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, kargl@apl.washington.edu,
   gcc-bugs@gcc.gnu.org
Cc:  
Subject: Re: optimization/8334: Simple code produces ICE in gcc-3.2.1
Date: Fri, 25 Oct 2002 10:47:39 -0700

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8334
 
 I've verified that this bug is present in gcc version 3.2.1 20021025 
 (prerelease)
 on i686-pc-linux-gnu, and that it was not present in 3.2.  So, it's a 
 regression;
 I've changed the priority to "high".
 

optimization/8334: Simple code produces ICE in gcc-3.2.1

[kargl]

>Number:         8334
>Category:       optimization
>Synopsis:       Simple code produces ICE in gcc-3.2.1
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Oct 23 23:56:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     steve kargl
>Release:        gcc-3.2.1 on FreeBSD current
>Organization:
>Environment:
FreeBSD 5.0
>Description:
kargl[207] gcc -O2 -c c.c
c.c: In function `ice':
c.c:14: unrecognizable insn:
(insn 156 150 162 (set (reg:SI 77)
        (ashift:SI (reg/v:SI 62)
            (const_int 1 [0x1]))) -1 (nil)
    (nil))
c.c:14: Internal compiler error in extract_insn, at recog.c:2150
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for 
instructions.

kargl[208] gcc -v
Using built-in specs.
Configured with: FreeBSD/i386 system compiler
Thread model: posix
gcc version 3.2.1 [FreeBSD] 20021009 (prerelease)



>How-To-Repeat:
Try to compile the following code with "gcc -O2 -c"

void ice(int m, int n, double *f) {

        int i, j, k;

    /* k = 0;  No ICE */
    k = 1;  /* ICE */

    for (j = 0; j < n; j++) {
        for (i = k; i < m; i++) {
            f[i] = (double) (i * j);
            f[i + j] = (double) ((i + 1) * j);
        }
    }
}
>Fix:

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