sse.md (*vec_concatv2sf_sse4_1): Do not allow both input operands in memory.

sse.md (*vec_concatv2sf_sse4_1): Do not allow both input operands in memory.

	* config/i386/sse.md (*vec_concatv2sf_sse4_1): Do not allow both
	input operands in memory.
	(*vec_concatv2si_sse4_1): Ditto.
	(*vec_concatv2df): Ditto, except for SSE3 and equal input operands.
	(vec_extract_lo_<mode><mask_name>): Change operand 1 predicate to
	register_operand.
	(vec_extract_hi_v32hi): Ditto.
	(vec_extract_hi_v64hi): Ditto.
	(<mask_codefor>avx512f_unpckhpd512<mask_name>): Ditto.

From-SVN: r222400