[Bug sanitizer/81322] -fsanitize=address ICE in prepare_function_start, at function.c

["marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81322

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-10
                 CC|                            |dmalcolm at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed, started when RTL FE was added. What happens is that we need to
create a constructor for a function times_two in:

/home/marxin/Programming/testcases/pr81322.c: In function
‘_GLOBAL__sub_I_00099_0_times_two’:
/home/marxin/Programming/testcases/pr81322.c:12:1: internal compiler error: in
prepare_function_start, at function.c:4974
 }
 ^
0x8c8aeb prepare_function_start
        ../../gcc/function.c:4974
0x8c8c8c init_function_start(tree_node*)
        ../../gcc/function.c:5050
0x78658b cgraph_node::expand()
        ../../gcc/cgraphunit.c:2039
0x786dc4 cgraph_node::add_new_function(tree_node*, bool)
        ../../gcc/cgraphunit.c:589
0x9cf644 cgraph_build_static_cdtor_1
        ../../gcc/ipa.c:935
0xbca7db asan_finish_file()
        ../../gcc/asan.c:2938
Please submit a full bug report,

Where we have already created following insns:

(gdb) p debug_rtx_list(get_last_insn(), 10)
(note 4 0 0 2 [bb 2] NOTE_INSN_BASIC_BLOCK)

David can you please take a look?