AVX10.2 ymm rounding: Support vcvtpd2{,u}{dq,qq} intrins

AVX10.2 ymm rounding: Support vcvtpd2{,u}{dq,qq} intrins

gcc/ChangeLog:

	* config/i386/avx10_2roundingintrin.h: Add new intrins.
	* config/i386/i386-builtin-types.def: Add new DEF_FUNCTION_TYPE.
	* config/i386/i386-builtin.def (BDESC): Add new builtins.
	* config/i386/i386-expand.cc (ix86_expand_round_builtin): Handle
	V4DI_FTYPE_V4DF_V4DI_UQI_INT, V4SI_FTYPE_V4DF_V4SI_UQI_INT.
	* config/i386/sse.md:
	(avx_cvtpd2dq256<mask_name>): Change name to
	avx_cvtpd2dq256<mask_name><round_name> and extend pattern to
	generate 256bit insns.
	(fixuns_notrunc<mode><si2dfmodelower>2<mask_name><round_name>):
	Add round_mode_condition.
	* config/i386/subst.md (round_pd2udqsuff): New iterator.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx-1.c: Add new builtin test.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* gcc.target/i386/sse-14.c: Add new macro test.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/avx10_2-rounding-1.c: Add test.