Support Intel AVX VNNI

Support Intel AVX VNNI

2020-10-13  Hongtao Liu  <hongtao.liu@intel.com>
	    Hongyu Wang  <hongyu.wang@intel.com>

gcc/
	* common/config/i386/cpuinfo.h (get_available_features):
	Detect AVXVNNI.
	* common/config/i386/i386-common.c
	(OPTION_MASK_ISA2_AVXVNNI_SET,
	OPTION_MASK_ISA2_AVXVNNI_UNSET): New.
	(OPTION_MASK_ISA2_AVX2_UNSET): Add AVXVNNI.
	(ix86_hanlde_option): Handle -mavxvnni, unset avxvnni when
	avx2 is disabled.
	* common/config/i386/i386-cpuinfo.h (enum processor_features):
	Add FEATURE_AVXVNNI.
	* common/config/i386/i386-isas.h: Add ISA_NAMES_TABLE_ENTRY
	for avxvnni.
	* config.gcc: Add avxvnniintrin.h.
	* config/i386/avx512vnnivlintrin.h: Reimplement 128/256 bit non-mask
	intrinsics with macros to support unified interface.
	* config/i386/avxvnniintrin.h: New header file.
	* config/i386/cpuid.h (bit_AVXVNNI): New.
	* config/i386/i386-builtins.c (def_builtin): Handle AVXVNNI mask
	for unified builtin.
	* config/i386/i386-builtin.def (BDESC): Adjust AVX512VNNI
	builtins for AVXVNNI.
	* config/i386/i386-c.c (ix86_target_macros_internal): Define
	__AVXVNNI__.
	* config/i386/i386-expand.c (ix86_expand_builtin): Handle bisa
	for AVXVNNI to support unified intrinsic name, since there is no
	dependency between AVX512VNNI and AVXVNNI.
	* config/i386/i386-options.c (isa2_opts): Add -mavxvnni.
	(ix86_valid_target_attribute_inner_p): Handle avxnnni.
	(ix86_option_override_internal): Ditto.
	* config/i386/i386.h (TARGET_AVXVNNI, TARGET_AVXVNNI_P,
	TARGET_AVXVNNI_P, PTA_AVXVNNI): New.
	(PTA_SAPPHIRERAPIDS): Add AVX_VNNI.
	(PTA_ALDERLAKE): Likewise.
	* config/i386/i386.md ("isa"): Add avxvnni, avx512vnnivl.
	("enabled"): Adjust for avxvnni and avx512vnnivl.
	* config/i386/i386.opt: Add option -mavxvnni.
	* config/i386/immintrin.h: Include avxvnniintrin.h.
	* config/i386/sse.md (vpdpbusd_<mode>): Adjust for AVXVNNI.
	(vpdpbusds_<mode>): Likewise.
	(vpdpwssd_<mode>): Likewise.
	(vpdpwssds_<mode>): Likewise.
	(vpdpbusd_v16si): New.
	(vpdpbusds_v16si): Likewise.
	(vpdpwssd_v16si): Likewise.
	(vpdpwssds_v16si): Likewise.
	* doc/invoke.texi: Document -mavxvnni.
	* doc/extend.texi: Document avxvnni.
	* doc/sourcebuild.texi: Document target avxvnni.

gcc/testsuite/

	* gcc.target/i386/avx512vl-vnni-1.c: Rename..
	* gcc.target/i386/avx512vl-vnni-1a.c: To This.
	* gcc.target/i386/avx512vl-vnni-1b.c: New test.
	* gcc.target/i386/avx512vl-vnni-2.c: Ditto.
	* gcc.target/i386/avx512vl-vnni-3.c: Ditto.
	* gcc.target/i386/avx-vnni-1.c: Ditto.
	* gcc.target/i386/avx-vnni-2.c: Ditto.
	* gcc.target/i386/avx-vnni-3.c: Ditto.
	* gcc.target/i386/avx-vnni-4.c: Ditto.
	* gcc.target/i386/avx-vnni-5.c: Ditto.
	* gcc.target/i386/avx-vnni-6.c: Ditto.
	* gcc.target/i386/avx-vpdpbusd-2.c: Ditto.
	* gcc.target/i386/avx-vpdpbusds-2.c: Ditto.
	* gcc.target/i386/avx-vpdpwssd-2.c: Ditto.
	* gcc.target/i386/avx-vpdpwssds-2.c: Ditto.
	* gcc.target/i386/vnni_inline_error.c: Ditto.
	* gcc.target/i386/avx512vnnivl-builtin.c: Ditto.
	* gcc.target/i386/avxvnni-builtin.c: Ditto.
	* gcc.target/i386/funcspec-56.inc: Add new target attribute.
	* gcc.target/i386/sse-12.c: Add -mavxvnni.
	* 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.
	* g++.dg/other/i386-2.C: Ditto.
	* g++.dg/other/i386-3.C: Ditto.
	* lib/target-supports.exp (check_effective_target_avxvnni):
	New proc.