c++/8535: internal compiler error on gcc-2.95.4

[berg@adept.co.za]

>Number:         8535
>Category:       c++
>Synopsis:       internal compiler error on gcc-2.95.4
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          ice-on-legal-code
>Submitter-Id:   net
>Arrival-Date:   Mon Nov 11 15:36:00 PST 2002
>Closed-Date:
>Last-Modified:
>Originator:     Friedrich Bergmann
>Release:        2.95.4
>Organization:
>Environment:
standard installed gcc 2.95.4
with Debian linux 3.0
on Pentium II (Deschutes)
cpu MHz     : 300.013
cat /proc/version:
Linux version 2.4.16-686 (herbert@gondolin) (gcc version 2.95.4 20011006 (Debian prerelease)) #1 Wed Nov 28 09:27:17 EST 2001



>Description:
ICE when an uninitialized extern const int is used as size initializer for an array (of an enumeration).
the bug only appears in conjunction with the initvars() function which apparently has nothing to do with it. (i.e. if i only delete the initvars() function, gcc exits successfully)

compiler output with the -v option:
$ g++ -v bufferbot.brain.cpp

Reading specs from /usr/lib/gcc-lib/i386-linux/2.95.4/specs
gcc version 2.95.4 20011002 (Debian prerelease)
 /usr/lib/gcc-lib/i386-linux/2.95.4/cpp0 -lang-c++ -v -D__GNUC__=2 -D__GNUG__=2 -D__GNUC_MINOR__=95 -D__cplusplus -D__ELF__ -Dunix -D__i386__ -Dlinux -D__ELF__ -D__unix__ -D__i386__ -D__linux__ -D__unix -D__linux -Asystem(posix) -D__EXCEPTIONS -Acpu(i386) -Amachine(i386) -Di386 -D__i386 -D__i386__ bufferbot.brain.cpp bufferbot.brain.ii
GNU CPP version 2.95.4 20011002 (Debian prerelease) (i386 Linux/ELF)
#include "..." search starts here:
#include <...> search starts here:
 /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../include/g++-3
 /usr/local/include
 /usr/lib/gcc-lib/i386-linux/2.95.4/include
 /usr/include
End of search list.
The following default directories have been omitted from the search path:
 /usr/lib/gcc-lib/i386-linux/2.95.4/../../../../i386-linux/include
End of omitted list.
 /usr/lib/gcc-lib/i386-linux/2.95.4/cc1plus bufferbot.brain.ii -quiet -dumpbase bufferbot.brain.cc -version -o bufferbot.brain.s

>How-To-Repeat:
g++ bufferbot.brain.cpp
>Fix:
when i use a #define instead of an extern const int, the error does not appear.
when i remove the initvars() function, the error vanishes.
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/x-c++src; name="bufferbot.brain.cpp"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="bufferbot.brain.cpp"

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