Golang x86.M128i函数代码示例

// MaskzConflictEpi32: Test each 32-bit element of 'a' for equality with all
// other elements in 'a' closer to the least significant bit using zeromask 'k'
// (elements are zeroed out when the corresponding mask bit is not set). Each
// element's comparison forms a zero extended bit vector in 'dst'.
//
//		FOR j := 0 to 3
//			i := j*32
//			IF k[i]
//				FOR l := 0 to j-1
//					m := l*32
//					dst[i+l] := (a[i+31:i] == a[m+31:m]) ? 1 : 0
//				ENDFOR
//				dst[i+31:i+j] := 0
//			ELSE
//				dst[i+31:i] := 0
//			FI
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPCONFLICTD'. Intrinsic: '_mm_maskz_conflict_epi32'.
// Requires AVX512CD.
func MaskzConflictEpi32(k x86.Mmask8, a x86.M128i) (dst x86.M128i) {
	return x86.M128i(maskzConflictEpi32(uint8(k), [16]byte(a)))
}

// ShuffleEpi8: Shuffle packed 8-bit integers in 'a' according to shuffle
// control mask in the corresponding 8-bit element of 'b', and store the
// results in 'dst'.
//
//		FOR j := 0 to 15
//			i := j*8
//			IF b[i+7] == 1
//				dst[i+7:i] := 0
//			ELSE
//				index[3:0] := b[i+3:i]
//				dst[i+7:i] := a[index*8+7:index*8]
//			FI
//		ENDFOR
//
// Instruction: 'PSHUFB'. Intrinsic: '_mm_shuffle_epi8'.
// Requires SSSE3.
func ShuffleEpi8(a x86.M128i, b x86.M128i) (dst x86.M128i) {
	return x86.M128i(shuffleEpi8([16]byte(a), [16]byte(b)))
}

// Sha1rnds4Epu32: Perform four rounds of SHA1 operation using an initial SHA1
// state (A,B,C,D) from 'a' and some pre-computed sum of the next 4 round
// message values (unsigned 32-bit integers), and state variable E from 'b',
// and store the updated SHA1 state (A,B,C,D) in 'dst'. 'func' contains the
// logic functions and round constants.
//
//		IF (func[1:0] = 0) THEN
//			f() := f0(), K := K0;
//		ELSE IF (func[1:0] = 1) THEN
//			f() := f1(), K := K1;
//		ELSE IF (func[1:0] = 2) THEN
//			f() := f2(), K := K2;
//		ELSE IF (func[1:0] = 3) THEN
//			f() := f3(), K := K3;
//		FI;
//
//		A := a[127:96];
//		B := a[95:64];
//		C := a[63:32];
//		D := a[31:0];
//
//		W[0] := b[127:96];
//		W[1] := b[95:64];
//		W[2] := b[63:32];
//		W[3] := b[31:0];
//
//		A[1] := f(B, C, D) + (A <<< 5) + W[0] + K;
//		B[1] := A;
//		C[1] := B <<< 30;
//		D[1] := C;
//		E[1] := D;
//
//		FOR i = 1 to 3
//				A[i+1] := f(B[i], C[i], D[i]) + (A[i] <<< 5) + W[i] + E[i] + K;
//				B[i+1] := A[i];
//				C[i+1] := B[i] <<< 30;
//				D[i+1] := C[i];
//				E[i+1] := D[i];
//		ENDFOR;
//
//		dst[127:96] := A[4];
//		dst[95:64] := B[4];
//		dst[63:32] := C[4];
//		dst[31:0] := D[4];
//
// Instruction: 'SHA1RNDS4'. Intrinsic: '_mm_sha1rnds4_epu32'.
// Requires SHA.
func Sha1rnds4Epu32(a x86.M128i, b x86.M128i, fnc int) (dst x86.M128i) {
	return x86.M128i(sha1rnds4Epu32([16]byte(a), [16]byte(b), fnc))
}

// Sha256rnds2Epu32: Perform 2 rounds of SHA256 operation using an initial
// SHA256 state (C,D,G,H) from 'a', an initial SHA256 state (A,B,E,F) from 'b',
// and a pre-computed sum of the next 2 round message values (unsigned 32-bit
// integers) and the corresponding round constants from 'k', and store the
// updated SHA256 state (A,B,E,F) in 'dst'.
//
//		A[0] := b[127:96];
//		B[0] := b[95:64];
//		C[0] := a[127:96];
//		D[0] := a[95:64];
//		E[0] := b[63:32];
//		F[0] := b[31:0];
//		G[0] := a[63:32];
//		H[0] := a[31:0];
//
//		W_K0 := k[31:0];
//		W_K1 := k[63:32];
//
//		FOR i = 0 to 1
//				A_(i+1) := Ch(E[i], F[i], G[i]) + sum1(E[i]) + WKi + H[i] + Maj(A[i], B[i], C[i]) + sum0(A[i]);
//				B_(i+1) := A[i];
//				C_(i+1) := B[i];
//				D_(i+1) := C[i];
//				E_(i+1) := Ch(E[i], F[i], G[i]) + sum1(E[i]) + WKi + H[i] + D[i];
//				F_(i+1) := E[i];
//				G_(i+1) := F[i];
//				H_(i+1) := G[i];
//		ENDFOR;
//
//		dst[127:96] := A[2];
//		dst[95:64] := B[2];
//		dst[63:32] := E[2];
//		dst[31:0] := F[2];
//
// Instruction: 'SHA256RNDS2'. Intrinsic: '_mm_sha256rnds2_epu32'.
// Requires SHA.
func Sha256rnds2Epu32(a x86.M128i, b x86.M128i, k x86.M128i) (dst x86.M128i) {
	return x86.M128i(sha256rnds2Epu32([16]byte(a), [16]byte(b), [16]byte(k)))
}

// Clmulepi64Si128: Perform a carry-less multiplication of two 64-bit integers,
// selected from 'a' and 'b' according to 'imm8', and store the results in
// 'dst'.
//
//		IF (imm8[0] = 0)
//			TEMP1 := a[63:0];
//		ELSE
//			TEMP1 := a[127:64];
//		FI
//		IF (imm8[4] = 0)
//			TEMP2 := b[63:0];
//		ELSE
//			TEMP2 := b[127:64];
//		FI
//
//		FOR i := 0 to 63
//			TEMP[i] := (TEMP1[0] and TEMP2[i]);
//			FOR j := 1 to i
//				TEMP [i] := TEMP [i] XOR (TEMP1[j] AND TEMP2[i-j])
//			ENDFOR
//			dst[i] := TEMP[i];
//		ENDFOR
//		FOR i := 64 to 127
//			TEMP [i] := 0;
//			FOR j := (i - 63) to 63
//				TEMP [i] := TEMP [i] XOR (TEMP1[j] AND TEMP2[i-j])
//			ENDFOR
//			dst[i] := TEMP[i];
//		ENDFOR
//		dst[127] := 0
//
// Instruction: 'PCLMULQDQ'. Intrinsic: '_mm_clmulepi64_si128'.
// Requires PCLMULQDQ.
//
// FIXME: Requires compiler support (has immediate)
func Clmulepi64Si128(a x86.M128i, b x86.M128i, imm8 byte) (dst x86.M128i) {
	return x86.M128i(clmulepi64Si128([16]byte(a), [16]byte(b), imm8))
}

// AesenclastSi128: Perform the last round of an AES encryption flow on data
// (state) in 'a' using the round key in 'RoundKey', and store the result in
// 'dst'."
//
//		state := a
//		a[127:0] := ShiftRows(a[127:0])
//		a[127:0] := SubBytes(a[127:0])
//		dst[127:0] := a[127:0] XOR RoundKey[127:0]
//
// Instruction: 'AESENCLAST'. Intrinsic: '_mm_aesenclast_si128'.
// Requires AES.
func AesenclastSi128(a x86.M128i, RoundKey x86.M128i) (dst x86.M128i) {
	return x86.M128i(aesenclastSi128([16]byte(a), [16]byte(RoundKey)))
}

// MaskzLzcntEpi64: Counts the number of leading zero bits in each packed
// 64-bit integer in 'a', and store the results in 'dst' using zeromask 'k'
// (elements are zeroed out when the corresponding mask bit is not set).
//
//		FOR j := 0 to 1
//			i := j*64
//			IF k[j]
//				tmp := 63
//				dst[i+63:i] := 0
//				DO WHILE (tmp >= 0 AND a[i+tmp] == 0)
//					tmp := tmp - 1
//					dst[i+63:i] := dst[i+63:i] + 1
//				OD
//			ELSE
//				dst[i+63:i] := 0
//			FI
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPLZCNTQ'. Intrinsic: '_mm_maskz_lzcnt_epi64'.
// Requires AVX512CD.
func MaskzLzcntEpi64(k x86.Mmask8, a x86.M128i) (dst x86.M128i) {
	return x86.M128i(maskzLzcntEpi64(uint8(k), [16]byte(a)))
}

// CvtpsPh: Convert packed single-precision (32-bit) floating-point elements in
// 'a' to packed half-precision (16-bit) floating-point elements, and store the
// results in 'dst'.
// 	Rounding is done according to the 'rounding' parameter, which can be one
// of:
//     (_MM_FROUND_TO_NEAREST_INT |_MM_FROUND_NO_EXC) // round to nearest, and suppress exceptions
//     (_MM_FROUND_TO_NEG_INF |_MM_FROUND_NO_EXC)     // round down, and suppress exceptions
//     (_MM_FROUND_TO_POS_INF |_MM_FROUND_NO_EXC)     // round up, and suppress exceptions
//     (_MM_FROUND_TO_ZERO |_MM_FROUND_NO_EXC)        // truncate, and suppress exceptions
//     _MM_FROUND_CUR_DIRECTION // use MXCSR.RC; see _MM_SET_ROUNDING_MODE
//
//		FOR j := 0 to 3
//			i := 16*j
//			l := 32*j
//			dst[i+15:i] := Convert_FP32_To_FP16FP(a[l+31:l])
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VCVTPS2PH'. Intrinsic: '_mm_cvtps_ph'.
// Requires FP16C.
func CvtpsPh(a x86.M128, rounding int) (dst x86.M128i) {
	return x86.M128i(cvtpsPh([4]float32(a), rounding))
}

// LzcntEpi64: Counts the number of leading zero bits in each packed 64-bit
// integer in 'a', and store the results in 'dst'.
//
//		FOR j := 0 to 1
//			i := j*64
//			tmp := 63
//			dst[i+63:i] := 0
//			DO WHILE (tmp >= 0 AND a[i+tmp] == 0)
//				tmp := tmp - 1
//				dst[i+63:i] := dst[i+63:i] + 1
//			OD
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPLZCNTQ'. Intrinsic: '_mm_lzcnt_epi64'.
// Requires AVX512CD.
func LzcntEpi64(a x86.M128i) (dst x86.M128i) {
	return x86.M128i(lzcntEpi64([16]byte(a)))
}

// MaskLzcntEpi64: Counts the number of leading zero bits in each packed 64-bit
// integer in 'a', and store the results in 'dst' using writemask 'k' (elements
// are copied from 'src' when the corresponding mask bit is not set).
//
//		FOR j := 0 to 1
//			i := j*64
//			IF k[j]
//				tmp := 63
//				dst[i+63:i] := 0
//				DO WHILE (tmp >= 0 AND a[i+tmp] == 0)
//					tmp := tmp - 1
//					dst[i+63:i] := dst[i+63:i] + 1
//				OD
//			ELSE
//				dst[i+63:i] := src[i+63:i]
//			FI
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPLZCNTQ'. Intrinsic: '_mm_mask_lzcnt_epi64'.
// Requires AVX512CD.
func MaskLzcntEpi64(src x86.M128i, k x86.Mmask8, a x86.M128i) (dst x86.M128i) {
	return x86.M128i(maskLzcntEpi64([16]byte(src), uint8(k), [16]byte(a)))
}

// BroadcastmwEpi32: Broadcast the low 16-bits from input mask 'k' to all
// 32-bit elements of 'dst'.
//
//		FOR j := 0 to 3
//			i := j*32
//			dst[i+31:i] := ZeroExtend(k[15:0])
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPBROADCASTMW2D'. Intrinsic: '_mm_broadcastmw_epi32'.
// Requires AVX512CD.
func BroadcastmwEpi32(k x86.Mmask16) (dst x86.M128i) {
	return x86.M128i(broadcastmwEpi32(uint16(k)))
}

// ConflictEpi64: Test each 64-bit element of 'a' for equality with all other
// elements in 'a' closer to the least significant bit. Each element's
// comparison forms a zero extended bit vector in 'dst'.
//
//		FOR j := 0 to 1
//			i := j*64
//			FOR k := 0 to j-1
//				m := k*64
//				dst[i+k] := (a[i+63:i] == a[m+63:m]) ? 1 : 0
//			ENDFOR
//			dst[i+63:i+j] := 0
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPCONFLICTQ'. Intrinsic: '_mm_conflict_epi64'.
// Requires AVX512CD.
func ConflictEpi64(a x86.M128i) (dst x86.M128i) {
	return x86.M128i(conflictEpi64([16]byte(a)))
}

// BroadcastmbEpi64: Broadcast the low 8-bits from input mask 'k' to all 64-bit
// elements of 'dst'.
//
//		FOR j := 0 to 1
//			i := j*64
//			dst[i+63:i] := ZeroExtend(k[7:0])
//		ENDFOR
//		dst[MAX:128] := 0
//
// Instruction: 'VPBROADCASTMB2Q'. Intrinsic: '_mm_broadcastmb_epi64'.
// Requires AVX512CD.
func BroadcastmbEpi64(k x86.Mmask8) (dst x86.M128i) {
	return x86.M128i(broadcastmbEpi64(uint8(k)))
}

// SignEpi8: Negate packed 8-bit integers in 'a' when the corresponding signed
// 8-bit integer in 'b' is negative, and store the results in 'dst'. Element in
// 'dst' are zeroed out when the corresponding element in 'b' is zero.
//
//		FOR j := 0 to 15
//			i := j*8
//			IF b[i+7:i] < 0
//				dst[i+7:i] := NEG(a[i+7:i])
//			ELSE IF b[i+7:i] = 0
//				dst[i+7:i] := 0
//			ELSE
//				dst[i+7:i] := a[i+7:i]
//			FI
//		ENDFOR
//
// Instruction: 'PSIGNB'. Intrinsic: '_mm_sign_epi8'.
// Requires SSSE3.
func SignEpi8(a x86.M128i, b x86.M128i) (dst x86.M128i) {
	return x86.M128i(signEpi8([16]byte(a), [16]byte(b)))
}

// AlignrEpi8: Concatenate 16-byte blocks in 'a' and 'b' into a 32-byte
// temporary result, shift the result right by 'count' bytes, and store the low
// 16 bytes in 'dst'.
//
//		tmp[255:0] := ((a[127:0] << 128) OR b[127:0]) >> (count[7:0]*8)
//		dst[127:0] := tmp[127:0]
//
// Instruction: 'PALIGNR'. Intrinsic: '_mm_alignr_epi8'.
// Requires SSSE3.
func AlignrEpi8(a x86.M128i, b x86.M128i, count int) (dst x86.M128i) {
	return x86.M128i(alignrEpi8([16]byte(a), [16]byte(b), count))
}