Hi,
this patch fixes ICE when building firefox reported by Markus:
>
> lto1: internal compiler error: Segmentation fault
> 0x106e1feb crash_signal
> ../../gcc/gcc/toplev.c:383
> 0x10589cd4 lto_get_decl_name_mapping(lto_file_decl_data*, char const*)
> ../../gcc/gcc/lto-section-in.c:
Hi,
this segfault in c-c++-common/torture/builtin-arith-overflow-12.c is caused
by fact that we split ltrans units separating call to alias of local function
and its target. Because LTO partitioning turns aliases in boundaries into
normal symbols, we end up checking alias for can_change_signature_
