From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-prs-return-35665-listarch-gcc-prs=gcc.gnu.org@gcc.gnu.org>
Received: (qmail 32470 invoked by alias); 15 May 2003 04:36:00 -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 32448 invoked by uid 71); 15 May 2003 04:36:00 -0000
Resent-Date: 15 May 2003 04:36:00 -0000
Resent-Message-ID: <20030515043600.32447.qmail@sources.redhat.com>
Resent-From: gcc-gnats@gcc.gnu.org (GNATS Filer)
Resent-Cc: gcc-prs@gcc.gnu.org, gcc-bugs@gcc.gnu.org
Resent-Reply-To: gcc-gnats@gcc.gnu.org, aaronl@vitelus.com
Received: (qmail 14413 invoked by uid 48); 15 May 2003 04:28:00 -0000
Message-Id: <20030515042800.14412.qmail@sources.redhat.com>
Date: Thu, 15 May 2003 04:36:00 -0000
From: aaronl@vitelus.com
Reply-To: aaronl@vitelus.com
To: gcc-gnats@gcc.gnu.org
X-Send-Pr-Version: gnatsweb-2.9.3 (1.1.1.1.2.31)
Subject: middle-end/10795: ICE in extract_insn, at recog.c:2188
X-SW-Source: 2003-05/txt/msg01755.txt.bz2
List-Id: <gcc-prs.sourceware.org>


>Number:         10795
>Category:       middle-end
>Synopsis:       ICE in extract_insn, at recog.c:2188
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Thu May 15 04:36:00 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator:     aaronl@vitelus.com
>Release:        3.4 20030515
>Organization:
>Environment:
Debian GNU/Linux i386
>Description:
GCC 3.4 from CVS is ICEing on a source file. I distilled the function down to a testcase:

typedef struct {
    unsigned int flags;
} S;
extern const char a[];
void foo(const char *e, S *s)
{
    s->flags = 0;
    if (e > a)
        s->flags = 2;
}


gcc -Wall -O -c dump.c emits:
dump.c: In function `foo':                                      
dump.c:12: error: unrecognizable insn:
(insn 26 5 27 0 0x402face4 (set (reg:CC 17 flags)
        (compare:CC (symbol_ref:SI ("a") [flags 0x40] <var_decl 0x402fb144 a>)
            (reg/v/f:SI 58 [ e ]))) -1 (insn_list 3 (nil))
    (expr_list:REG_DEAD (reg/v/f:SI 58 [ e ])
        (nil)))
dump.c:12: internal compiler error: in extract_insn, at recog.c:2188
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

The ICE does not happen when optimization is turned off.
>How-To-Repeat:
Compile the supplied testcase.
>Fix:

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