[Bug fortran/52622] ICE in gfortran 4.6.3, x86_64

["adrian at llnl dot gov" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52622

--- Comment #2 from Adrian Prantl <adrian at llnl dot gov> 2012-03-20 15:33:40 UTC ---
I'm getting the error with both gcc 4.6.2 and 4.6.3
Below is the stack trace.

Program received signal SIGSEGV, Segmentation fault.
resolve_symbol (sym=0x14091b0) at ../../gcc-4.6.2/gcc/fortran/resolve.c:12412
12412          sym->formal_ns->refs++;
(gdb) l
12407        formal = formal->next;
12408    
12409          if (formal)
12410        {
12411          sym->formal_ns = formal->sym->ns;
12412          sym->formal_ns->refs++;
12413        }
12414        }
12415    
12416      /* Check threadprivate restrictions.  */
(gdb) bt
#0  resolve_symbol (sym=0x14091b0)
    at ../../gcc-4.6.2/gcc/fortran/resolve.c:12412
#1  0x000000000052f157 in traverse_ns (st=<value optimized out>, 
    func=0x511340 <resolve_symbol>)
    at ../../gcc-4.6.2/gcc/fortran/symbol.c:3333
#2  0x000000000052f146 in traverse_ns (st=<value optimized out>, 
    func=0x511340 <resolve_symbol>)
    at ../../gcc-4.6.2/gcc/fortran/symbol.c:3330
#3  0x000000000051bd4c in resolve_types (ns=0x14087b0)
    at ../../gcc-4.6.2/gcc/fortran/resolve.c:13543
#4  0x000000000051be28 in resolve_types (ns=0x13cd6e0)
    at ../../gcc-4.6.2/gcc/fortran/resolve.c:13554
#5  0x0000000000510bf4 in gfc_resolve (ns=0x13cd6e0)
    at ../../gcc-4.6.2/gcc/fortran/resolve.c:13642
#6  gfc_resolve (ns=0x13cd6e0) at ../../gcc-4.6.2/gcc/fortran/resolve.c:13630
#7  0x0000000000506229 in gfc_parse_file ()
    at ../../gcc-4.6.2/gcc/fortran/parse.c:4404
#8  0x000000000053f366 in gfc_be_parse_file ()
    at ../../gcc-4.6.2/gcc/fortran/f95-lang.c:250
#9  0x000000000079d6fc in compile_file (argc=13, argv=0x7fffffffdfc8)
    at ../../gcc-4.6.2/gcc/toplev.c:579
#10 do_compile (argc=13, argv=0x7fffffffdfc8)
    at ../../gcc-4.6.2/gcc/toplev.c:1900
---Type <return> to continue, or q <return> to quit---
#11 toplev_main (argc=13, argv=0x7fffffffdfc8)
    at ../../gcc-4.6.2/gcc/toplev.c:1963
#12 0x00007ffff7874c4d in __libc_start_main (main=<value optimized out>, 
    argc=<value optimized out>, ubp_av=<value optimized out>, 
    init=<value optimized out>, fini=<value optimized out>, 
    rtld_fini=<value optimized out>, stack_end=0x7fffffffdfb8)
    at libc-start.c:226
#13 0x000000000049f9b5 in _start ()
(gdb)