Re: objc/4975

[Andrew Pinski <pinskia at physics dot uc dot edu>]

Still fails with a shorter testcase:

gcc -O3 main.m -save-temps -v
Reading specs from /home/rodent/pinskia/gcc-linux/bin/../lib/gcc-
lib/i686-pc-linux-gnu/3.1/specs
Configured with: /lhome/src/gnu/gcc/gcc3.1/src/configure 
--prefix=/home/linux --with-gnu-as=/home/linux/bun/as --with-gnu-
ld=/home/linux/bin/ld --enable-threads=posix --enable-shared
Thread model: posix
gcc version 3.1 20011207 (experimental)
  /home/rodent/pinskia/gcc-linux/bin/../lib/gcc-lib/i686-pc-linux-
gnu/3.1/cpp0 -lang-objc -v -iprefix /home/rodent/pinskia/gcc-
linux/bin/../lib/gcc-lib/i686-pc-linux-gnu/3.1/ -D__GNUC__=3 
-D__GNUC_MINOR__=1 -D__GNUC_PATCHLEVEL__=0 -D__ELF__ -Dunix -Dlinux 
-D__ELF__ -D__unix__ -D__linux__ -D__unix -D__linux -Asystem=posix 
-D__OPTIMIZE__ -D__STDC_HOSTED__=1 -Acpu=i386 -Amachine=i386 -Di386 
-D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ main.m main.mi
GNU CPP version 3.1 20011207 (experimental) (cpplib) (i386 Linux/ELF)
ignoring nonexistent directory "/usr/local/include"
ignoring duplicate directory "/home/linux/lib/gcc-lib/i686-pc-linux-
gnu/3.1/include"
ignoring duplicate directory "/home/linux/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
  /home/rodent/pinskia/gcc-linux/lib/gcc-lib/i686-pc-linux-gnu/3.1/include
  /home/rodent/pinskia/gcc-linux/i686-pc-linux-gnu/include
  /home/linux/include
  /usr/include
End of search list.
  /home/rodent/pinskia/gcc-linux/bin/../lib/gcc-lib/i686-pc-linux-
gnu/3.1/cc1obj -fpreprocessed main.mi -quiet -dumpbase main.m -O3 
-version -o main.s
GNU CPP version 3.1 20011207 (experimental) (cpplib) (i386 Linux/ELF)
GNU Objective-C version 3.1 20011207 (experimental) (i686-pc-linux-gnu)
         compiled by GNU C version 3.1 20011207 (experimental).
main.m: In function `_GLOBAL__I_main.mAKFmgb':
main.m:13: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

Here is the ouput from gdb:

Program received signal SIGSEGV, Segmentation fault.
0x0804f62c in defer_fn (fn=0x401a2f68)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/objc/objc-act.c:580
580       VARRAY_PUSH_TREE (deferred_fns, fn);
(gdb) bt
#0  0x0804f62c in defer_fn (fn=0x401a2f68)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/objc/objc-act.c:580
#1  0x08078478 in c_expand_body (fndecl=0x401a2f68, nested_p=0, 
can_defer_p=1)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/c-decl.c:6950
#2  0x08077b7a in finish_function (nested=0)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/c-decl.c:6858
#3  0x08051fe7 in build_module_descriptor ()
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/objc/objc-act.c:1749
#4  0x08061a61 in finish_objc ()
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/objc/objc-act.c:8139
#5  0x0804f6af in finish_file ()
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/objc/objc-act.c:598
#6  0x08049c55 in yyparse_1 () at /usr/lib/bison.simple:315
#7  0x0822ffb4 in compile_file ()
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/toplev.c:2109
#8  0x08235229 in do_compile ()
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/toplev.c:5102
#9  0x08235288 in toplev_main (argc=10, argv=0xbffff024)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/toplev.c:5132
#10 0x080ab64b in main (argc=10, argv=0xbffff024)
     at /lhome/src/gnu/gcc/gcc3.1/src/gcc/main.c:35
#11 0x40041f31 in __libc_start_main (main=0x80ab630 <main>, argc=10,
     ubp_av=0xbffff024, init=0x8049038 <_init>, fini=0x82ef494 <_fini>,
     rtld_fini=0x4000e274 <_dl_fini>, stack_end=0xbffff01c)
     at ../sysdeps/generic/libc-start.c:129
(gdb) p deferred_fns
$1 = 0x0(gdb) p fn
$2 = 0x401a2f68

Here is shorter testcase:
# 1 "main.m"
# 1 "<builtin>"
# 1 "<command line>"
# 1 "main.m"
@interface HashTableData
{

}

@end
@implementation HashTableData
         -init:(int)lkey
     {

     }
@end