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c/932: gcc compiler internal error

To: gcc-gnats at gcc dot gnu dot org
Subject: c/932: gcc compiler internal error
From: jbourg at stars dot sfsu dot edu
Date: 30 Nov 2000 03:01:18 -0000
Reply-To: jbourg at stars dot sfsu dot edu

>Number:         932
>Category:       c
>Synopsis:       gcc compiler internal error
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Nov 29 19:06:00 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     John Bourg
>Release:        2.95.2 (made w/ gnu make etc) Note: Has worked well
>Organization:
>Environment:
SunOS quark 5.6 Generic_105181-19 sun4u sparc SUNW,UltraSPARC-IIi-Engine
>Description:
Compiler internal error with unmodifed imap-2000 code.
Distribution location: ./imap-2000/c-client/mbx.c

Transcript:

gcc -g -O2    -c -o mbx.o mbx.c
mbx.c: In function `mbx_hdrpos':
mbx.c:1371: internal error--unrecognizable insn:
(insn 78 76 80 (set (reg:SI 129)
        (minus:SI (const_int 4 [0x4])
            (const_int -4096 [0xfffff000]))) -1 (nil)
    (expr_list:REG_EQUAL (const_int 4100 [0x1004])
        (nil)))

Changing the optimization level does not affect the error.
>How-To-Repeat:
Compile attached code.  I can't seem to include mbx.h but
both .c and .h are available in the standard imap-2000
distrubution.  mbx.c as attached is unmodified.
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: application/octet-stream; name="mbx.c"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="mbx.c"

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