VPSHLD — Concatenate and Shift Packed Data Left Logical

Opcode/Instruction Op/En 64/32 bit Mode Support CPUID Feature Flag Description
EVEX.128.66.0F3A.W1 70 /r /ib VPSHLDW xmm1{k1}{z}, xmm2, xmm3/m128, imm8 A V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into xmm1.
EVEX.256.66.0F3A.W1 70 /r /ib VPSHLDW ymm1{k1}{z}, ymm2, ymm3/m256, imm8 A V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into ymm1.
EVEX.512.66.0F3A.W1 70 /r /ib VPSHLDW zmm1{k1}{z}, zmm2, zmm3/m512, imm8 A V/V AVX512_VBMI2 Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into zmm1.
EVEX.128.66.0F3A.W0 71 /r /ib VPSHLDD xmm1{k1}{z}, xmm2, xmm3/m128/m32bcst, imm8 B V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into xmm1.
EVEX.256.66.0F3A.W0 71 /r /ib VPSHLDD ymm1{k1}{z}, ymm2, ymm3/m256/m32bcst, imm8 B V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into ymm1.
EVEX.512.66.0F3A.W0 71 /r /ib VPSHLDD zmm1{k1}{z}, zmm2, zmm3/m512/m32bcst, imm8 B V/V AVX512_VBMI2 Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into zmm1.
EVEX.128.66.0F3A.W1 71 /r /ib VPSHLDQ xmm1{k1}{z}, xmm2, xmm3/m128/m64bcst, imm8 B V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into xmm1.
EVEX.256.66.0F3A.W1 71 /r /ib VPSHLDQ ymm1{k1}{z}, ymm2, ymm3/m256/m64bcst, imm8 B V/V AVX512_VBMI2 AVX512VL Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into ymm1.
EVEX.512.66.0F3A.W1 71 /r /ib VPSHLDQ zmm1{k1}{z}, zmm2, zmm3/m512/m64bcst, imm8 B V/V AVX512_VBMI2 Concatenate destination and source operands, extract result shifted to the left by constant value in imm8 into zmm1.

Instruction Operand Encoding

Op/En Tuple Operand 1 Operand 2 Operand 3 Operand 4
A Full Mem ModRM:reg (w) EVEX.vvvv (r) ModRM:r/m (r) imm8 (r)
B Full ModRM:reg (w) EVEX.vvvv (r) ModRM:r/m (r) imm8 (r)

Description

Concatenate packed data, extract result shifted to the left by constant value.

This instruction supports memory fault suppression.

Operation

VPSHLDW DEST, SRC2, SRC3, imm8

(KL, VL) = (8, 128), (16, 256), (32, 512)

FOR j := 0 TO KL-1:

IF MaskBit(j) OR *no writemask*:

tmp := concat(SRC2.word[j], SRC3.word[j]) << (imm8 & 15)

DEST.word[j] := tmp.word[1]

ELSE IF *zeroing*:

DEST.word[j] := 0

*ELSE DEST.word[j] remains unchanged*

DEST[MAX_VL-1:VL] := 0

VPSHLDD DEST, SRC2, SRC3, imm8

(KL, VL) = (4, 128), (8, 256), (16, 512)

FOR j := 0 TO KL-1:

IF SRC3 is broadcast memop:

tsrc3 := SRC3.dword[0]

ELSE:

tsrc3 := SRC3.dword[j]

IF MaskBit(j) OR *no writemask*:

tmp := concat(SRC2.dword[j], tsrc3) << (imm8 & 31)

DEST.dword[j] := tmp.dword[1]

ELSE IF *zeroing*:

DEST.dword[j] := 0

*ELSE DEST.dword[j] remains unchanged*

DEST[MAX_VL-1:VL] := 0

VPSHLDQ DEST, SRC2, SRC3, imm8

(KL, VL) = (2, 128), (4, 256), (8, 512)

FOR j := 0 TO KL-1:

IF SRC3 is broadcast memop:

tsrc3 := SRC3.qword[0]

ELSE:

tsrc3 := SRC3.qword[j]

IF MaskBit(j) OR *no writemask*:

tmp := concat(SRC2.qword[j], tsrc3) << (imm8 & 63)

DEST.qword[j] := tmp.qword[1]

ELSE IF *zeroing*:

DEST.qword[j] := 0

*ELSE DEST.qword[j] remains unchanged*

DEST[MAX_VL-1:VL] := 0

Intel C/C++ Compiler Intrinsic Equivalent

VPSHLDD __m128i _mm_shldi_epi32(__m128i, __m128i, int);

VPSHLDD __m128i _mm_mask_shldi_epi32(__m128i, __mmask8, __m128i, __m128i, int);

VPSHLDD __m128i _mm_maskz_shldi_epi32(__mmask8, __m128i, __m128i, int);

VPSHLDD __m256i _mm256_shldi_epi32(__m256i, __m256i, int);

VPSHLDD __m256i _mm256_mask_shldi_epi32(__m256i, __mmask8, __m256i, __m256i, int);

VPSHLDD __m256i _mm256_maskz_shldi_epi32(__mmask8, __m256i, __m256i, int);

VPSHLDD __m512i _mm512_shldi_epi32(__m512i, __m512i, int);

VPSHLDD __m512i _mm512_mask_shldi_epi32(__m512i, __mmask16, __m512i, __m512i, int);

VPSHLDD __m512i _mm512_maskz_shldi_epi32(__mmask16, __m512i, __m512i, int);

VPSHLDQ __m128i _mm_shldi_epi64(__m128i, __m128i, int);

VPSHLDQ __m128i _mm_mask_shldi_epi64(__m128i, __mmask8, __m128i, __m128i, int);

VPSHLDQ __m128i _mm_maskz_shldi_epi64(__mmask8, __m128i, __m128i, int);

VPSHLDQ __m256i _mm256_shldi_epi64(__m256i, __m256i, int);

VPSHLDQ __m256i _mm256_mask_shldi_epi64(__m256i, __mmask8, __m256i, __m256i, int);

VPSHLDQ __m256i _mm256_maskz_shldi_epi64(__mmask8, __m256i, __m256i, int);

VPSHLDQ __m512i _mm512_shldi_epi64(__m512i, __m512i, int);

VPSHLDQ __m512i _mm512_mask_shldi_epi64(__m512i, __mmask8, __m512i, __m512i, int);

VPSHLDQ __m512i _mm512_maskz_shldi_epi64(__mmask8, __m512i, __m512i, int);

VPSHLDW __m128i _mm_shldi_epi16(__m128i, __m128i, int);

VPSHLDW __m128i _mm_mask_shldi_epi16(__m128i, __mmask8, __m128i, __m128i, int);

VPSHLDW __m128i _mm_maskz_shldi_epi16(__mmask8, __m128i, __m128i, int);

VPSHLDW __m256i _mm256_shldi_epi16(__m256i, __m256i, int);

VPSHLDW __m256i _mm256_mask_shldi_epi16(__m256i, __mmask16, __m256i, __m256i, int);

VPSHLDW __m256i _mm256_maskz_shldi_epi16(__mmask16, __m256i, __m256i, int);

VPSHLDW __m512i _mm512_shldi_epi16(__m512i, __m512i, int);

VPSHLDW __m512i _mm512_mask_shldi_epi16(__m512i, __mmask32, __m512i, __m512i, int);

VPSHLDW __m512i _mm512_maskz_shldi_epi16(__mmask32, __m512i, __m512i, int);

SIMD Floating-Point Exceptions

None.

Other Exceptions

See Type E4.