i386.c (standard_sse_constant_p): Simplify switch statement.

i386.c (standard_sse_constant_p): Simplify switch statement.

	* config/i386/i386.c (standard_sse_constant_p) <case 1>:
	Simplify switch statement.
	* config/i386/i386.md (*movdf_internal_rex64) <case 8,9,10>: Ditto.
	(*movdf_internal) <case 6,7,8>: Ditto.

	* config/i386/constraints.md (Y4): New constraint.
	* config/i386/sse.md (vec_set<mode>_0): Merge with
	*vec_set<mode>_0_sse4_1 and *vec_set<mode>_0_sse2.
	(*vec_extractv2di_1): Merge from *vec_extractv2di_1_sse2 and
	*vec_extractv2di_1_sse.
	(*vec_concatv2di_rex64): Merge from *vec_concatv2di_rex64_sse4_1
	and *vec_concatv2di_rex64_sse.

testsuite/ChangeLog:

	* gcc.target/i386/sse2-init-v2di-2: Update scan-assembler-times string.

From-SVN: r174570