* config/i386/i386.md (ROUND_FLOOR): New constant.
	(ROUND_CEIL): Ditto.
	(ROUND_TRUNC): Ditto.
	(ROUND_MXCSR): Ditto.
	(ROUND_NO_EXC): Ditto.
	(rint<mode>2): Use new defines instead of numerical constants.
	(floor<mode>2): Ditto.
	(ceil<mode>2): Ditto.
	(btrunc<mode>2): Ditto.
	* config/i386/i386-builtin-types.def: Define ROUND function type
	aliases.
	* config/i386/i386.c (enum ix86_builtins): Add
	IX86_BUILTIN_{FLOOR,CEIL,TRUNC,RINT}{PS,PD}{,256} defines.
	(struct builtin_description): Add
	__builtin_ia32_{floor,ceil,trunc,rint}{pd,ps}{,256} descriptions.
	(ix86_expand_sse_round): New static function.
	(ix86_expand_args_builtin): Call ix86_expand_sse_round for ROUND
	function types.
	(ix86_builtin_vectorized_function): Handle
	BUILT_IN_{FLOOR,CEIL,TRUNC,RINT}{,F} builtins.

testsuite/ChangeLog:

	* gcc.target/i386/sse4_1-floor-vec.c: New test.
	* gcc.target/i386/sse4_1-ceil-vec.c: Ditto.
	* gcc.target/i386/sse4_1-trunc-vec.c: Ditto.
	* gcc-target/i386/sse4_1-rint-vec.c: Ditto.
	* gcc.target/i386/sse4_1-floorf-vec.c: Ditto.
	* gcc.target/i386/sse4_1-ceilf-vec.c: Ditto.
	* gcc.target/i386/sse4_1-truncf-vec.c: Ditto.
	* gcc.target/i386/sse4_1-rintf-vec.c: Ditto.
	* gcc.target/i386/avx-floor-vec.c: Ditto.
	* gcc.target/i386/avx-ceil-vec.c: Ditto.
	* gcc.target/i386/avx-trunc-vec.c: Ditto.
	* gcc.target/i386/avx-rint-vec.c: Ditto.
	* gcc.target/i386/avx-floorf-vec.c: Ditto.
	* gcc.target/i386/avx-ceilf-vec.c: Ditto.
	* gcc.target/i386/avx-truncf-vec.c: Ditto.
	* gcc.target/i386/avx-rintf-vec.c: Ditto.

From-SVN: r170953