gcc/ChangeLog:

2015-06-10  Mikhail Maltsev  <maltsevm@gmail.com>

	* defaults.h (gen_simple_return, gen_return, gen_mem_thread_fence,
	gen_memory_barrier, gen_mem_signal_fence, gen_load_multiple,
	gen_store_multiple, gen_tablejump): Remove.  Generate by genflags.
	(HAVE_*): Likewise.
	* genflags.c (struct stub_info_t): Define.
	(stubs): Define variable.
	(struct gflg_string_hasher): Define.
	(stubs_map): Define variable.
	(mark_as_done): New function.
	(gen_dummy): New function (move code out of gen_proto, generalize).
	(gen_proto): Use gen_dummy.
	(gen_insn): Call mark_as_done.
	(gen_stub): New function.
	(main): Initialize stubs_map, call gen_stubs for missing stubs.