testcase for dwarf2 bootstrap ICE.

[Robert Lipe]

I started hacking down the code to get a testcase for htis ICE.  Tests
don't often resolve clear down to a one-liner. :-)

$ cat q.cc
typedef volatile struct { } blah_t;
(robertl) rjludi:/home3/tmp/x/gcc
$ ./xgcc    -g  -c -B./ q.cc
q.cc:1: Internal compiler error in `modified_type_die', at dwarf2out.c:6473

If either 'volatile' is removed or the struct is given an identifier the
code doesn't ICE.

Hope this helps.

RJL



>   > The one that I have run into (ironically three times this very morning)
>   > that I'd like to add is the dwarf2 bootstrap ICE that I just mentioned.
>   > 
>   >   /home3/tmp/x/gcc/xgcc -B/home3/tmp/x/gcc/ -B/usr/local/i686-UnixWare7.1.0
>   > -sysv5/bin/ -c -g -O2 -fno-implicit-templates -I. -I/play/egcs/libio -nostd
>   > inc++  -fpic /play/egcs/libio/filebuf.cc -o pic/filebuf.o
>   > /play/egcs/libio/filebuf.cc:215: Internal compiler error in `modified_type_
>   > die', at dwarf2out.c:6473
>   > Please submit a full bug report to `egcs-bugs@egcs.cygnus.com'.
>   > See <URL: http://egcs.cygnus.com/faq.html#bugreport > for details.
> We'll see.  Depends on degree of difficulty :-)