[PATCH 2/2] AVX10.2: Support saturating convert instructions

[PATCH 2/2] AVX10.2: Support saturating convert instructions

gcc/ChangeLog:

	* config/i386/avx10_2-512satcvtintrin.h: Add new intrin.
	* config/i386/avx10_2satcvtintrin.h: Ditto.
	* config/i386/i386-builtin.def (BDESC): Add new builtins.
	* config/i386/sse.md (VF1_VF2_AVX10_2): New iterator.
	(VF2_AVX10_2): Ditto.
	(VI8_AVX10_2): Ditto.
	(sat_cvt_sign_prefix): Add new UNSPEC.
	(UNSPEC_SAT_CVT_DS_SIGN_ITER): New iterator.
	(pd2dqssuff): Ditto.
	(avx10_2_vcvtt<castmode>2<sat_cvt_sign_prefix>dqs<mode><mask_name><round_saeonly_name>):
	New.
	(avx10_2_vcvttpd2<sat_cvt_sign_prefix>qqs<mode><mask_name><round_saeonly_name>):
	Ditto.
	(avx10_2_vcvttps2<sat_cvt_sign_prefix>qqs<mode><mask_name><round_saeonly_name>):
	Ditto.
	(avx10_2_vcvttsd2<sat_cvt_sign_prefix>sis<mode><round_saeonly_name>):
	Ditto.
	(avx10_2_vcvttss2<sat_cvt_sign_prefix>sis<mode><round_saeonly_name>):
	Ditto.

gcc/testsuite/ChangeLog:

	* gcc.target/i386/avx-1.c: Add macros.
	* gcc.target/i386/sse-13.c: Ditto.
	* gcc.target/i386/sse-14.c: Ditto.
	* gcc.target/i386/sse-22.c: Ditto.
	* gcc.target/i386/sse-23.c: Ditto.
	* gcc.target/i386/avx10_2-satcvt-1.c: Add test.
	* gcc.target/i386/avx10_2-512-satcvt-1.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttpd2dqs-2.c: New test.
	* gcc.target/i386/avx10_2-512-vcvttpd2qqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttpd2udqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttpd2uqqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttps2dqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttps2qqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttps2udqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-512-vcvttps2uqqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttpd2dqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttpd2qqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttpd2udqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttpd2uqqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttps2dqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttps2qqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttps2udqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttps2uqqs-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttsd2sis-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttsd2usis-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttss2sis-2.c: Ditto.
	* gcc.target/i386/avx10_2-vcvttss2usis-2.c: Ditto.