x86-64.net

Instruction

VPERMPD

Rearranges doubles across the whole register, controlled by an immediate or by an index vector.

Extensions
Forms
10 (2 VEX, 8 EVEX)
Data
Intel XED v2026.08.23

Forms

Every encoding of VPERMPD that Intel XED knows, one row per XED instruction form (iform). How to read the notation.
InstructionEncodingRequires
VPERMPD ymm, m256, imm8 VPERMPD_YMMqq_MEMqq_IMMbVEX.256.66.0F3A.W1 01 /r ibAVX2
VPERMPD ymm, ymm, imm8 VPERMPD_YMMqq_YMMqq_IMMbVEX.256.66.0F3A.W1 01 /r ibAVX2
VPERMPD zmm {k}{z}, zmm, imm8 VPERMPD_ZMMf64_MASKmskw_ZMMf64_IMM8_AVX512EVEX.512.66.0F3A.W1 01 /r ibAVX10.1 or AVX512F
VPERMPD zmm {k}{z}, m512/m64bcst, imm8 VPERMPD_ZMMf64_MASKmskw_MEMf64_IMM8_AVX512EVEX.512.66.0F3A.W1 01 /r ibAVX10.1 or AVX512F
VPERMPD zmm {k}{z}, zmm, zmm VPERMPD_ZMMf64_MASKmskw_ZMMf64_ZMMf64_AVX512EVEX.512.66.0F38.W1 16 /rAVX10.1 or AVX512F
VPERMPD zmm {k}{z}, zmm, m512/m64bcst VPERMPD_ZMMf64_MASKmskw_ZMMf64_MEMf64_AVX512EVEX.512.66.0F38.W1 16 /rAVX10.1 or AVX512F
VPERMPD ymm {k}{z}, ymm, imm8 VPERMPD_YMMf64_MASKmskw_YMMf64_IMM8_AVX512EVEX.256.66.0F3A.W1 01 /r ibAVX10.1 or AVX512F + AVX512VL
VPERMPD ymm {k}{z}, m256/m64bcst, imm8 VPERMPD_YMMf64_MASKmskw_MEMf64_IMM8_AVX512EVEX.256.66.0F3A.W1 01 /r ibAVX10.1 or AVX512F + AVX512VL
VPERMPD ymm {k}{z}, ymm, ymm VPERMPD_YMMf64_MASKmskw_YMMf64_YMMf64_AVX512EVEX.256.66.0F38.W1 16 /rAVX10.1 or AVX512F + AVX512VL
VPERMPD ymm {k}{z}, ymm, m256/m64bcst VPERMPD_YMMf64_MASKmskw_YMMf64_MEMf64_AVX512EVEX.256.66.0F38.W1 16 /rAVX10.1 or AVX512F + AVX512VL

Intrinsics

The C intrinsics of Clang 23.1.2 that compile to VPERMPD, each with the form it compiles to and the Clang options it needs. The forms come from compiling every intrinsic and decoding the result with Intel XED; all intrinsics A–Z explains the method.

IntrinsicCompiles to
_mm256_permute4x64_pd __m256d _mm256_permute4x64_pd(__m256d V, const int M)

VPERMPD ymm, ymm, imm8 VEX.256 -mavx2

_mm256_permutex_pd __m256d _mm256_permutex_pd(__m256d X, const int C)

VPERMPD ymm, ymm, imm8 VEX.256 -mavx512vl

_mm256_permutexvar_pd __m256d _mm256_permutexvar_pd(__m256i __X, __m256d __Y)

VPERMPD ymm, ymm, ymm EVEX.256 -mavx512vl

_mm256_mask_permutex_pd __m256d _mm256_mask_permutex_pd(__m256d W, __mmask8 U, __m256d X, const int C)

VPERMPD ymm {k}, ymm, imm8 EVEX.256 -mavx512vl

_mm256_mask_permutexvar_pd __m256d _mm256_mask_permutexvar_pd(__m256d __W, __mmask8 __U, __m256i __X, __m256d __Y)

VPERMPD ymm {k}, ymm, ymm EVEX.256 -mavx512vl

_mm256_maskz_permutex_pd __m256d _mm256_maskz_permutex_pd(__mmask8 U, __m256d X, const int C)

VPERMPD ymm {k}{z}, ymm, imm8 EVEX.256 -mavx512vl

_mm256_maskz_permutexvar_pd __m256d _mm256_maskz_permutexvar_pd(__mmask8 __U, __m256i __X, __m256d __Y)

VPERMPD ymm {k}{z}, ymm, ymm EVEX.256 -mavx512vl

_mm512_permutex_pd __m512d _mm512_permutex_pd(__m512d X, const int C)

VPERMPD zmm, zmm, imm8 EVEX.512 -mavx512f

_mm512_permutexvar_pd __m512d _mm512_permutexvar_pd(__m512i __X, __m512d __Y)

VPERMPD zmm, zmm, zmm EVEX.512 -mavx512f

_mm512_mask_permutex_pd __m512d _mm512_mask_permutex_pd(__m512d W, __mmask8 U, __m512d X, const int C)

VPERMPD zmm {k}, zmm, imm8 EVEX.512 -mavx512f

_mm512_mask_permutexvar_pd __m512d _mm512_mask_permutexvar_pd(__m512d __W, __mmask8 __U, __m512i __X, __m512d __Y)

VPERMPD zmm {k}, zmm, zmm EVEX.512 -mavx512f

_mm512_maskz_permutex_pd __m512d _mm512_maskz_permutex_pd(__mmask8 U, __m512d X, const int C)

VPERMPD zmm {k}{z}, zmm, imm8 EVEX.512 -mavx512f

_mm512_maskz_permutexvar_pd __m512d _mm512_maskz_permutexvar_pd(__mmask8 __U, __m512i __X, __m512d __Y)

VPERMPD zmm {k}{z}, zmm, zmm EVEX.512 -mavx512f

CPUID and processors

Each form belongs to an XED ISA set. A form can be used when the processor reports every CPUID bit of one of its ISA set's alternatives.

CPUID requirements and processors of the XED ISA sets above. Alternatives are separated by “or”; processors follow XED’s chip model, which covers AMD processors up to Zen 2.
ISA setCPUIDProcessors in XED
AVX2

AVX2
CPUID.(EAX=07H,ECX=0):EBX[5] AVX2

Haswell, Broadwell, Skylake, Comet Lake, Cannon Lake, Ice Lake (client), Tiger Lake, Alder Lake, Arrow Lake, Panther Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids, Sierra Forest, Clearwater Forest, Knights Landing, Knights Mill, Zen, Zen+, Zen 2
AVX512F_512

AVX10.1
CPUID.(EAX=07H,ECX=1):EDX[19] AVX10
CPUID.(EAX=24H,ECX=0):EBX[7:0] ≥ 1 AVX10 version

or

AVX512F
CPUID.(EAX=07H,ECX=0):EBX[16] AVX512F

Cannon Lake, Ice Lake (client), Tiger Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids, Knights Landing, Knights Mill
AVX512F_256

AVX10.1
CPUID.(EAX=07H,ECX=1):EDX[19] AVX10
CPUID.(EAX=24H,ECX=0):EBX[7:0] ≥ 1 AVX10 version

or

AVX512F + AVX512VL
CPUID.(EAX=07H,ECX=0):EBX[16] AVX512F
CPUID.(EAX=07H,ECX=0):EBX[31] AVX512VL

Cannon Lake, Ice Lake (client), Tiger Lake, Nova Lake, Skylake-SP, Cascade Lake, Cooper Lake, Ice Lake (server), Sapphire Rapids, Emerald Rapids, Granite Rapids, Diamond Rapids

More AVX10.1 instructions

All 686 AVX10.1 instructions

Sources

  1. Intel XED v2026.08.23 (commit 0bcb6237345c): forms, encodings, ISA sets, CPUID bits and chip model.
  2. Clang's x86 intrinsic headers, LLVM 23.1.2 (commit 85ac56026243): the intrinsics, their signatures and doc comments, and the Clang of that release, which compiled each of them.
  3. Intel Advanced Vector Extensions 10.2 Architecture Specification, revision 6.0 (361050-006, January 2026)

The tables are derived from Intel XED, Copyright Intel Corporation, licensed under the Apache License 2.0; x86-64.net converted and reformatted them. The intrinsics and their signatures come from Clang, part of the LLVM Project, licensed under the Apache License 2.0 with LLVM Exceptions. The text is our own.