md (reg_not_xmm0_operand): New predicate.

md (reg_not_xmm0_operand): New predicate.

	* config/i386/predicates/md (reg_not_xmm0_operand): New predicate.
	(nonimm_not_xmm0_operand): Ditto.
	* config/i386/sse.md ("sse4_1_blendvpd"): Use "reg_not_xmm0_operand"
	as operand[0] and operand[1] predicate.  Use "nonimm_not_xmm0_operand"
	as operand[2] predicate.  Require "z" class XMM register for
	operand[3].  Adjust asm template.
	("sse4_1_blendvpd"): Ditto.
	("sse4_1_pblendvb"): Ditto.
 	* config/i386/i386.c (ix86_expand_sse_4_operands_builtin): Do not
	force op2 into xmm0 register for variable blend instructions.

From-SVN: r125327