[Bug lto/65302] [5 Regression] LTO: ICE internal compiler error: verify_flow_info failed

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65302

Aldy Hernandez <aldyh at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2015-03-04
                 CC|                            |aldyh at gcc dot gnu.org,
                   |                            |richard.guenther at gmail dot com
     Ever confirmed|0                           |1

--- Comment #2 from Aldy Hernandez <aldyh at gcc dot gnu.org> ---
Confirmed.  Happens during ltrans stage:

(gdb) bt
#0  internal_error (gmsgid=0x161bb98 "verify_flow_info failed")
    at /source/gcc/gcc/diagnostic.c:1221
#1  0x0000000000729a78 in verify_flow_info () at /source/gcc/gcc/cfghooks.c:280
#2  0x0000000000b3e1b5 in execute_function_todo (fn=0x7fffeff972a0, data=0x40)
    at /source/gcc/gcc/passes.c:1969
#3  0x0000000000b3d25e in do_per_function (callback=
    0xb3dfa3 <execute_function_todo(function*, void*)>, data=0x40)
    at /source/gcc/gcc/passes.c:1649
#4  0x0000000000b3e32f in execute_todo (flags=64)
    at /source/gcc/gcc/passes.c:2014
#5  0x0000000000b3ed09 in execute_one_pass (pass=
    <opt_pass* 0x2006480 "*free_cfg_annotations"(0)>)
    at /source/gcc/gcc/passes.c:2341
#6  0x0000000000b3eeb1 in execute_pass_list_1 (
    pass=<opt_pass* 0x2006480 "*free_cfg_annotations"(0)>)
    at /source/gcc/gcc/passes.c:2380
#7  0x0000000000b3ef1f in execute_pass_list (fn=0x7fffeff972a0, 
    pass=<opt_pass* 0x2006480 "*free_cfg_annotations"(0)>)
    at /source/gcc/gcc/passes.c:2391
#8  0x0000000000763888 in cgraph_node::expand (
    this=<cgraph_node* 0x7fffeff99188 "Init">)
    at /source/gcc/gcc/cgraphunit.c:1878
#9  0x00000000007642f6 in output_in_order (no_reorder=false)
    at /source/gcc/gcc/cgraphunit.c:2116
#10 0x00000000007649c3 in symbol_table::compile (this=0x7ffff018f000)
    at /source/gcc/gcc/cgraphunit.c:2361
#11 0x00000000006a5c0a in lto_main () at /source/gcc/gcc/lto/lto.c:3476
#12 0x0000000000c3750a in compile_file () at /source/gcc/gcc/toplev.c:594
#13 0x0000000000c399d3 in do_compile () at /source/gcc/gcc/toplev.c:2066
#14 0x0000000000c39c01 in toplev::main (this=0x7fffffffdbb0, argc=25, 
    argv=0x1fe0320) at /source/gcc/gcc/toplev.c:2164
#15 0x0000000001576ac7 in main (argc=25, argv=0x7fffffffdcb8)
    at /source/gcc/gcc/main.c:39