This mostly follows existing practice.  Perhaps the only noteworthy
thing is that svmmla is split across three extensions (i8mm, f32mm
and f64mm), any of which can be enabled independently.  The easiest
way of coping with this seemed to be to add a fourth svmmla entry
for base SVE, but with no type suffixes.  This means that the
overloaded function is always available for C, but never successfully
resolves without the appropriate target feature.

2020-01-31  Dennis Zhang  <dennis.zhang@arm.com>
	    Matthew Malcomson  <matthew.malcomson@arm.com>
	    Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* doc/invoke.texi (f32mm): Document new AArch64 -march= extension.
	* config/aarch64/aarch64-c.c (aarch64_update_cpp_builtins): Define
	__ARM_FEATURE_SVE_MATMUL_INT8, __ARM_FEATURE_SVE_MATMUL_FP32 and
	__ARM_FEATURE_SVE_MATMUL_FP64 as appropriate.  Don't define
	__ARM_FEATURE_MATMUL_FP64.
	* config/aarch64/aarch64-option-extensions.def (fp, simd, fp16)
	(sve): Add AARCH64_FL_F32MM to the list of extensions that should
	be disabled at the same time.
	(f32mm): New extension.
	* config/aarch64/aarch64.h (AARCH64_FL_F32MM): New macro.
	(AARCH64_FL_F64MM): Bump to the next bit up.
	(AARCH64_ISA_F32MM, TARGET_SVE_I8MM, TARGET_F32MM, TARGET_SVE_F32MM)
	(TARGET_SVE_F64MM): New macros.
	* config/aarch64/iterators.md (SVE_MATMULF): New mode iterator.
	(UNSPEC_FMMLA, UNSPEC_SMATMUL, UNSPEC_UMATMUL, UNSPEC_USMATMUL)
	(UNSPEC_TRN1Q, UNSPEC_TRN2Q, UNSPEC_UZP1Q, UNSPEC_UZP2Q, UNSPEC_ZIP1Q)
	(UNSPEC_ZIP2Q): New unspeccs.
	(DOTPROD_US_ONLY, PERMUTEQ, MATMUL, FMMLA): New int iterators.
	(optab, sur, perm_insn): Handle the new unspecs.
	(sve_fp_op): Handle UNSPEC_FMMLA.  Resort.
	* config/aarch64/aarch64-sve.md (@aarch64_sve_ld1ro<mode>): Use
	TARGET_SVE_F64MM instead of separate tests.
	(@aarch64_<DOTPROD_US_ONLY:sur>dot_prod<vsi2qi>): New pattern.
	(@aarch64_<DOTPROD_US_ONLY:sur>dot_prod_lane<vsi2qi>): Likewise.
	(@aarch64_sve_add_<MATMUL:optab><vsi2qi>): Likewise.
	(@aarch64_sve_<FMMLA:sve_fp_op><mode>): Likewise.
	(@aarch64_sve_<PERMUTEQ:optab><mode>): Likewise.
	* config/aarch64/aarch64-sve-builtins.cc (TYPES_s_float): New macro.
	(TYPES_s_float_hsd_integer, TYPES_s_float_sd_integer): Use it.
	(TYPES_s_signed): New macro.
	(TYPES_s_integer): Use it.
	(TYPES_d_float): New macro.
	(TYPES_d_data): Use it.
	* config/aarch64/aarch64-sve-builtins-shapes.h (mmla): Declare.
	(ternary_intq_uintq_lane, ternary_intq_uintq_opt_n, ternary_uintq_intq)
	(ternary_uintq_intq_lane, ternary_uintq_intq_opt_n): Likewise.
	* config/aarch64/aarch64-sve-builtins-shapes.cc (mmla_def): New class.
	(svmmla): New shape.
	(ternary_resize2_opt_n_base): Add TYPE_CLASS2 and TYPE_CLASS3
	template parameters.
	(ternary_resize2_lane_base): Likewise.
	(ternary_resize2_base): New class.
	(ternary_qq_lane_base): Likewise.
	(ternary_intq_uintq_lane_def): Likewise.
	(ternary_intq_uintq_lane): New shape.
	(ternary_intq_uintq_opt_n_def): New class
	(ternary_intq_uintq_opt_n): New shape.
	(ternary_qq_lane_def): Inherit from ternary_qq_lane_base.
	(ternary_uintq_intq_def): New class.
	(ternary_uintq_intq): New shape.
	(ternary_uintq_intq_lane_def): New class.
	(ternary_uintq_intq_lane): New shape.
	(ternary_uintq_intq_opt_n_def): New class.
	(ternary_uintq_intq_opt_n): New shape.
	* config/aarch64/aarch64-sve-builtins-base.h (svmmla, svsudot)
	(svsudot_lane, svtrn1q, svtrn2q, svusdot, svusdot_lane, svusmmla)
	(svuzp1q, svuzp2q, svzip1q, svzip2q): Declare.
	* config/aarch64/aarch64-sve-builtins-base.cc (svdot_lane_impl):
	Generalize to...
	(svdotprod_lane_impl): ...this new class.
	(svmmla_impl, svusdot_impl): New classes.
	(svdot_lane): Update to use svdotprod_lane_impl.
	(svmmla, svsudot, svsudot_lane, svtrn1q, svtrn2q, svusdot)
	(svusdot_lane, svusmmla, svuzp1q, svuzp2q, svzip1q, svzip2q): New
	functions.
	* config/aarch64/aarch64-sve-builtins-base.def (svmmla): New base
	function, with no types defined.
	(svmmla, svusmmla, svsudot, svsudot_lane, svusdot, svusdot_lane): New
	AARCH64_FL_I8MM functions.
	(svmmla): New AARCH64_FL_F32MM function.
	(svld1ro): Depend only on AARCH64_FL_F64MM, not on AARCH64_FL_V8_6.
	(svmmla, svtrn1q, svtrn2q, svuz1q, svuz2q, svzip1q, svzip2q): New
	AARCH64_FL_F64MM function.
	(REQUIRED_EXTENSIONS):

gcc/testsuite/
	* lib/target-supports.exp (check_effective_target_aarch64_asm_i8mm_ok)
	(check_effective_target_aarch64_asm_f32mm_ok): New target selectors.
	* gcc.target/aarch64/pragma_cpp_predefs_2.c: Test handling of
	__ARM_FEATURE_SVE_MATMUL_INT8, __ARM_FEATURE_SVE_MATMUL_FP32 and
	__ARM_FEATURE_SVE_MATMUL_FP64.
	* gcc.target/aarch64/sve/acle/asm/test_sve_acle.h (TEST_TRIPLE_Z):
	(TEST_TRIPLE_Z_REV2, TEST_TRIPLE_Z_REV, TEST_TRIPLE_LANE_REG)
	(TEST_TRIPLE_ZX): New macros.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_f16.c: Remove +sve and
	rely on +f64mm to enable it.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/ld1ro_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/mmla_f32.c: New test.
	* gcc.target/aarch64/sve/acle/asm/mmla_f64.c: Likewise,
	* gcc.target/aarch64/sve/acle/asm/mmla_s32.c: Likewise,
	* gcc.target/aarch64/sve/acle/asm/mmla_u32.c: Likewise,
	* gcc.target/aarch64/sve/acle/asm/sudot_lane_s32.c: Likewise,
	* gcc.target/aarch64/sve/acle/asm/sudot_s32.c: Likewise,
	* gcc.target/aarch64/sve/acle/asm/trn1q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn1q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/trn2q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/usdot_lane_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/usdot_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/usmmla_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp1q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/uzp2q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip1q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_f16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_f32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_f64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_s16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_s32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_s64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_s8.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_u16.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_u32.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_u64.c: Likewise.
	* gcc.target/aarch64/sve/acle/asm/zip2q_u8.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_1.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_2.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_3.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_4.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_5.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_6.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/mmla_7.c: Likewise.
	* gcc.target/aarch64/sve/acle/general-c/ternary_intq_uintq_lane_1.c:
	Likewise.
	* gcc.target/aarch64/sve/acle/general-c/ternary_intq_uintq_opt_n_1.c:
	Likewise.
	* gcc.target/aarch64/sve/acle/general-c/ternary_uintq_intq_1.c:
	Likewise.
	* gcc.target/aarch64/sve/acle/general-c/ternary_uintq_intq_lane_1.c:
	Likewise.
	* gcc.target/aarch64/sve/acle/general-c/ternary_uintq_intq_opt_n_1.c:
	Likewise.