[PATCH] Combine location with block using block_locations

[Dehao Chen]

Thanks for helping test this. I'll try to build mozzila to check the
memory consumption as well as find new bugs.

Dehao

On Tue, Sep 11, 2012 at 12:41 AM, Jan Hubicka <hubicka@ucw.cz> wrote:
> Hi,
> I was curious how the patch behaves memory wise on compilling Mozilla.  It actually crashes on:
> (gdb) bt
> #0  0x00007fab8cd70945 in raise () from /lib64/libc.so.6
> #1  0x00007fab8cd71f21 in abort () from /lib64/libc.so.6
> #2  0x0000000000b52330 in linemap_location_from_macro_expansion_p (set=0x7805, location=30725) at ../../libcpp/line-map.c:952
> #3  0x0000000000b526fc in linemap_lookup (set=0x7fab8dc34000, line=0) at ../../libcpp/line-map.c:644
> #4  0x0000000000776745 in maybe_unwind_expanded_macro_loc (where=0, diagnostic=<optimized out>, context=<optimized out>) at ../../gcc/tree-diagnostic.c:113
> #5  virt_loc_aware_diagnostic_finalizer (context=0x11b8a80, diagnostic=0x7fff4d8adf90) at ../../gcc/tree-diagnostic.c:282
> #6  0x0000000000b4aa80 in diagnostic_report_diagnostic (context=0x11b8a80, diagnostic=0x7fff4d8adf90) at ../../gcc/diagnostic.c:652
> #7  0x0000000000b4acd6 in internal_error (gmsgid=<optimized out>) at ../../gcc/diagnostic.c:957
> #8  0x00000000007555c0 in crash_signal (signo=11) at ../../gcc/toplev.c:335
> #9  <signal handler called>
> #10 0x0000000000b526e8 in linemap_lookup (set=0x7fab8dc34000, line=4294967295) at ../../libcpp/line-map.c:643
> #11 0x0000000000b530fa in linemap_location_in_system_header_p (set=0x7fab8dc34000, location=4294967295) at ../../libcpp/line-map.c:916
> #12 0x0000000000b4a8b2 in diagnostic_report_diagnostic (context=0x11b8a80, diagnostic=0x7fff4d8ae620) at ../../gcc/diagnostic.c:513
> #13 0x0000000000b4b462 in warning_at (location=<optimized out>, opt=0, gmsgid=<optimized out>) at ../../gcc/diagnostic.c:805
> #14 0x0000000000699679 in lto_symtab_merge_decls_2 (diagnosed_p=<optimized out>, slot=<optimized out>) at ../../gcc/lto-symtab.c:574
> #15 lto_symtab_merge_decls_1 (slot=<optimized out>, data=<optimized out>) at ../../gcc/lto-symtab.c:691
> #16 0x0000000000bd32e8 in htab_traverse_noresize (htab=<optimized out>, callback=0x698ed0 <lto_symtab_merge_decls_1(void**, void*)>, info=0x0) at ../../libiberty/hashtab.c:784
> #17 0x00000000004e2630 in read_cgraph_and_symbols (nfiles=2849, fnames=<optimized out>) at ../../gcc/lto/lto.c:1824
> #18 0x00000000004e2b75 in lto_main () at ../../gcc/lto/lto.c:2107
>
> It seems that warning_at is not really able to lookup the position.
>
> Honza