* branch probability hinting

* branch probability hinting

[cgen/ChangeLog]
2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* sid.cpu (-op-gen-set-trace[-parallel], -create-virtual-insns!):
	Emit LIKELY/UNLIKELY branch probability hints.
	* sid-decode.cpu (-gen-record-args): Ditto.

[sid/include/ChangeLog]
2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* sidconfig.h (LIKELY, UNLIKELY): New conditional cover macros
	for gcc's __builtin_expect branch probability hinting function.
	* sidbusutil.h (passthrough_bus, mux_password_bus, harvard_bus):
	Add some branch probability hints.
	* sidcpuutil.h (step_pin_handler, stop_after_insns_p,
	{read,write}_{insn,data}_memory): Ditto.
	* sidpinutil.h (callback_pin::driven): Remove unnecessary assert
	from critical path.

[eg. sid/component/mapper/ChangeLog]
2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* compMapper.cxx ({read,write}_strideoffset_any): Added b.p. hints.
	(write_any, read_any, locate): Ditto.

[sid/component/cgen-cpu/ChangeLog]
2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* cgen-engine.h (set_pbb_engine, chain, get_next_vpc, pbb_find,
	pbb_find_or_alloc, pbb_before, pbb_after): Add branch probability
	hints.

[eg. sid/component/cgen-cpu/arm7t/ChangeLog]
2001-03-01  Frank Ch. Eigler  <fche@redhat.com>

	* arm-decode.cxx, -sem.cxx, -semsw.cxx: Regenerated w/ b.p. hints.
	* thumb-decode.cxx, -sem.cxx, -semsw.cxx: Ditto.