[Bug lto/42665] Internal compiler exception in with gfortran when using -fwhole-program -flto -fopenmp

["rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #8 from rguenther at suse dot de  2010-01-11 15:54 -------
Subject: Re:  Internal compiler exception in with gfortran
 when using  -fwhole-program -flto -fopenmp

On Mon, 11 Jan 2010, jjcogliati-r1 at yahoo dot com wrote:

> 
> 
> ------- Comment #7 from jjcogliati-r1 at yahoo dot com  2010-01-11 15:50 -------
> (In reply to comment #6)
> 
> > Try
> > 
> > Index: gcc/gimple.c
> > ===================================================================
> > --- gcc/gimple.c        (revision 155739)
> > +++ gcc/gimple.c        (working copy)
> > @@ -3707,8 +3707,10 @@ iterative_hash_gimple_type (tree type, h
> >    /* For integer types hash the types min/max values and the string flag.  
> > */
> >    if (TREE_CODE (type) == INTEGER_TYPE)
> >      {
> > -      v = iterative_hash_expr (TYPE_MIN_VALUE (type), v);
> > -      v = iterative_hash_expr (TYPE_MAX_VALUE (type), v);
> > +      if (TYPE_MIN_VALUE (type))
> > +       v = iterative_hash_expr (TYPE_MIN_VALUE (type), v);
> > +      if (TYPE_MAX_VALUE (type))
> > +       v = iterative_hash_expr (TYPE_MAX_VALUE (type), v);
> >        v = iterative_hash_hashval_t (TYPE_STRING_FLAG (type), v);
> >      }
> > 
> > 
> 
> 
> I tried that patch.  Still errors out with backtrace:
> #0  iterative_hash_expr (t=0x7ffff1e96b70, val=154387133)
>     at ../../gcc-4.5-20100107/gcc/tree.c:6592
> #1  0x00000000005ee1fc in iterative_hash_gimple_type (type=0x7ffff1df3888, 
>     val=<value optimized out>, sccstack=0x7fffffffda38, sccstate=0x126a440, 
>     sccstate_obstack=0x7fffffffd9e0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3713
> #2  0x00000000005ee843 in visit (t=0x7ffff1df3888, state=0x126b4b0, 
>     v=1159414094, sccstack=0x7fffffffda38, sccstate=0x126a440, 
>     sccstate_obstack=0x7fffffffd9e0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3599
> #3  0x00000000005ee276 in iterative_hash_gimple_type (type=0x7ffff1df37e0, 
>     val=<value optimized out>, sccstack=0x7fffffffda38, sccstate=0x126a440, 
>     sccstate_obstack=0x7fffffffd9e0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3722
> #4  0x00000000005ee843 in visit (t=0x7ffff1df37e0, state=0x126b4a0, 
>     v=4237831805, sccstack=0x7fffffffda38, sccstate=0x126a440, 
>     sccstate_obstack=0x7fffffffd9e0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3599
> #5  0x00000000005ee180 in iterative_hash_gimple_type (type=0x7ffff1df3bd0, 
>     val=<value optimized out>, sccstack=0x7fffffffda38, sccstate=0x126a440, 
>     sccstate_obstack=0x7fffffffd9e0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3703
> #6  0x00000000005ee6eb in gimple_type_hash (p=0x7ffff1df3bd0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3831
> #7  0x0000000000bfb821 in htab_find_slot (htab=0x11de980, 
>     element=0x7ffff1df3bd0, insert=INSERT)
>     at ../../gcc-4.5-20100107/libiberty/hashtab.c:681
> #8  0x00000000005f76e3 in gimple_register_type (t=0x7ffff1df3bd0)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3873
> #9  0x00000000005f76c6 in gimple_register_type (t=0x7ffff1df3738)
>     at ../../gcc-4.5-20100107/gcc/gimple.c:3868
> #10 0x000000000048cbb7 in lto_read_in_decl_state (data=<value optimized out>, 
>     state=<value optimized out>) at ../../gcc-4.5-20100107/gcc/lto/lto.c:174
> #11 0x000000000048f036 in lto_read_decls (resolutions=<value optimized out>, 
>     data=<value optimized out>, decl_data=<value optimized out>)
>     at ../../gcc-4.5-20100107/gcc/lto/lto.c:237
> #12 lto_file_read (resolutions=<value optimized out>, 
>     data=<value optimized out>, decl_data=<value optimized out>)
>     at ../../gcc-4.5-20100107/gcc/lto/lto.c:377
> #13 read_cgraph_and_symbols (resolutions=<value optimized out>, 
>     data=<value optimized out>, decl_data=<value optimized out>)
>     at ../../gcc-4.5-20100107/gcc/lto/lto.c:1839
> #14 lto_main (resolutions=<value optimized out>, data=<value optimized out>, 
>     decl_data=<value optimized out>)
>     at ../../gcc-4.5-20100107/gcc/lto/lto.c:2061
> #15 0x000000000073fc26 in compile_file ()
>     at ../../gcc-4.5-20100107/gcc/toplev.c:1053
> #16 do_compile () at ../../gcc-4.5-20100107/gcc/toplev.c:2405
> #17 toplev_main () at ../../gcc-4.5-20100107/gcc/toplev.c:2447
> #18 0x000000378c01eb1d 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=<value optimized out>)
>     at libc-start.c:220
> 
> Same generally looking types as above (ERROR_MARK, INTEGER_TYPE ...)
> 
> Is there anyway for me to find out what filename and line number are being
> compiled at this point?  That would help me figure out a smaller testcase.

Not really.  A big testcase is ok - we have automated tools to reduce it.

Richard.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42665