i386.c (ix86_expand_fp_compare): Delay creating of scratch register until when it...

i386.c (ix86_expand_fp_compare): Delay creating of scratch register until when it is really needed.

	* i386.c (ix86_expand_fp_compare): Delay creating of scratch register
	until when it is really needed.
	(ix86_expand_compare): Update call of ix86_expand_fp_compare.
	* i386.h (PREDICATE_CODES): Add all codes for sse_comparison_operator
	* i386.md (float?i?f splitter): Don't force source operand to memory
	for SSE.
	(sse_movdfcc): Fix constraint.
	(sse_movdfcc splitter): Handle properly the second alternative.

From-SVN: r40216