aarch64: Add common subset of SVE2p1 and SME2

aarch64: Add common subset of SVE2p1 and SME2

This patch handles the SVE2p1 instructions that are shared
with SME2.  This includes the consecutive-register forms of
the 2-register and 4-register loads and stores, but not the
strided-register forms.

gcc/
	* config/aarch64/aarch64.h (TARGET_SVE2p1_OR_SME2): New macro.
	* config/aarch64/aarch64-early-ra.cc
	(is_stride_candidate): Require TARGET_STREAMING_SME2
	(early_ra::maybe_convert_to_strided_access): Likewise.
	* config/aarch64/aarch64-sve-builtins-sve2.def: Mark instructions
	that are common to both SVE2p1 and SME2.
	* config/aarch64/aarch64-sve.md
	(@aarch64_<sur>dot_prod_lane<SVE_FULL_SDI:mode><SVE_FULL_BHI:mode>):
	Test TARGET_SVE2p1_OR_SME2 instead of TARGET_STREAMING_SME2.
	(@aarch64_sve_<sve_fp_op>vnx4sf): Move TARGET_SVE_BF16 condition
	into SVE_BFLOAT_TERNARY_LONG.
	(@aarch64_sve_<sve_fp_op>_lanevnx4sf): Likewise
	SVE_BFLOAT_TERNARY_LONG_LANE.
	* config/aarch64/aarch64-sve2.md
	(@aarch64_<LD1_COUNT:optab><mode>): Require TARGET_SVE2p1_OR_SME2
	instead of TARGET_STREAMING_SME2.
	(@aarch64_<ST1_COUNT:optab><mode>): Likewise.
	(@aarch64_sve_ptrue_c<BHSD_BITS>): Likewise.
	(@aarch64_sve_pext<BHSD_BITS>): Likewise.
	(@aarch64_sve_pext<BHSD_BITS>x2): Likewise.
	(@aarch64_sve_cntp_c<BHSD_BITS>): Likewise.
	(@aarch64_sve_fclamp<mode>): Likewise.
	(*aarch64_sve_fclamp<mode>_x): Likewise.
	(<sur>dot_prodvnx4sivnx8hi): Likewise.
	(aarch64_sve_fdotvnx4sfvnx8hf): Likewise.
	(aarch64_fdot_prod_lanevnx4sfvnx8hf): Likewise.
	(@aarch64_sve_while<while_optab_cmp>_b<BHSD_BITS>_x2): Likewise.
	(@aarch64_sve_while<while_optab_cmp>_c<BHSD_BITS>): Likewise.
	(@aarch64_sve_<optab><VNx8HI_ONLY:mode><VNx8SI_ONLY:mode>): Move
	TARGET_STREAMING_SME2 condition into SVE_QCVTxN.
	(@aarch64_sve_<sve_int_op><mode>): Likewise
	SVE2_INT_SHIFT_IMM_NARROWxN, but also require TARGET_STREAMING_SME2
	for the 4-register forms.
	* config/aarch64/iterators.md (SVE_BFLOAT_TERNARY_LONG): Require
	TARGET_SVE2p1_OR_SME2 rather than TARGET_STREAMING_SME2 for
	UNSPEC_BFMLSLB and UNSPEC_BFMLSLT.  Require TARGET_SVE_BF16
	for the others.
	(SVE_BFLOAT_TERNARY_LONG_LANE): Likewise.
	(SVE2_INT_SHIFT_IMM_NARROWxN): Require TARGET_SVE2p1_OR_SME2 for
	the interleaving forms and TARGET_STREAMING_SME2 for the rest.
	(SVE_QCVTxN): Likewise.

gcc/testsuite/
	* gcc.target/aarch64/sve/clamp_3.c: New test.
	* gcc.target/aarch64/sve/clamp_4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/bfmlslb_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/bfmlslb_lane_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/bfmlslt_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/bfmlslt_lane_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/clamp_f16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/clamp_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/clamp_f64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/cntp_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/cntp_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/cntp_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/cntp_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_lane_f32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_lane_s32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_lane_u32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_s32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/dot_u32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_bf16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_bf16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_f64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_s8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ld1_u8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_bf16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_bf16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_f64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_s8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ldnt1_u8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/pext_lane_c8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ptrue_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ptrue_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ptrue_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/ptrue_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qcvtn_s16_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qcvtn_u16_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qcvtn_u16_u32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qrshrn_s16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qrshrn_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/qrshrun_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_bf16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_bf16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_f64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_s8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/st1_u8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_bf16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_bf16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_f64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_s8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u16_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u32_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u64_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/stnt1_u8_x4.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_b16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_b32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_b64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_b8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilege_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_b16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_b32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_b64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_b8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilegt_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_b16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_b32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_b64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_b8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilele_c8.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_b16_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_b32_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_b64_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_b8_x2.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_c16.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_c32.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_c64.c: Likewise.
	* gcc.target/aarch64/sve2/acle/asm/whilelt_c8.c: Likewise.