[Bug bootstrap/60984] [4.9 Regression] AIX: gcc-4.9.0 bootstrap fails in stage-2

[dje at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60984

--- Comment #17 from David Edelsohn <dje at gcc dot gnu.org> ---
(gdb) print node->name()
$37 = 0x303f2768 "void __builtin_unreachable()"
(gdb) print *edge
$32 = {count = 0, caller = 0x70460a80, callee = 0x700099c0, prev_caller = 0x0, 
  next_caller = 0x0, prev_callee = 0x0, next_callee = 0x0, 
  call_stmt = 0x71272140, indirect_info = 0x0, aux = 0x0, 
  inline_failed = CIF_UNREACHABLE, lto_stmt_uid = 0, frequency = 0, uid = 41, 
  indirect_inlining_edge = 0, indirect_unknown_callee = 0, 
  call_stmt_cannot_inline_p = 0, can_throw_external = 1, speculative = 0}