mmx.md (EMMS): New int iterator.

mmx.md (EMMS): New int iterator.

	* config/i386/mmx.md (EMMS): New int iterator.
	(emms): New int attribute.
	(mmx_<emms>): Macroize insn from *mmx_emms and *mmx_femms using
	EMMS int iterator.  Explicitly declare clobbers.
	(mmx_emms): Remove expander.
	(mmx_femms): Ditto.
	* config/i386/predicates.md (emms_operation): Remove predicate.
	(vzeroall_pattern): New predicate.
	(vzeroupper_pattern): Rename from vzeroupper_operation.
	* config/i386/i386.c (ix86_avx_u128_mode_after): Use
	vzeroupper_pattern and vzeroall_pattern predicates.

From-SVN: r264727