The prototypes for Intel® Advanced Vector Extensions 512 (Intel® AVX-512) intrinsics are located in the zmmintrin.h header file.

To use these intrinsics, include the immintrin.h file as follows:

#include <immintrin.h>


Intrinsic Name

Operation

Corresponding
Intel® AVX-512 Instruction

_mm512_mul_epi32, _mm512_mask_mul_epi32, _mm512_maskz_mul_epi32

Multiplies alternating int32 vectors together to produce int64.

VPMULDQ

_mm512_mul_epu32, _mm512_mask_mul_epu32, _mm512_maskz_mul_epu32

Multiplies alternating unsigned int32 vectors together to produce int64.

VPMULUDQ

_mm512_mullo_epi32, _mm512_mask_mullo_epi32

Multiplies int32 vectors together to produce int64.

VPMULLD

_mm512_mullox_epi64, _mm512_mask_mullox_epi64

Multiplies int64 vectors together to produce int64.

None.

variable definition
k

writemask used as a selector

a

first source vector element

b

second source vector element

src

source element to use based on writemask result


_mm512_mul_epi32

extern __m512i __cdecl _mm512_mul_epi32(__m512i a, __m512i b);

Multiplies the low int32 elements from each packed 64-bit element in a and b, and stores the signed 64-bit result.


_mm512_mask_mul_epi32

extern __m512i __cdecl _mm512_mask_mul_epi32(__m512i src, __mmask8 k, __m512i a, __m512i b);

Multiplies the low int32 elements from each packed 64-bit element in a and b, and stores the signed 64-bit result using writemask k (elements are copied from src when the corresponding mask bit is not set).


_mm512_maskz_mul_epi32

extern __m512i __cdecl _mm512_maskz_mul_epi32(__mmask8 k, __m512i a, __m512i b);

Multiplies the low int32 elements from each packed 64-bit element in a and b, and stores the signed 64-bit result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).



_mm512_mullo_epi32

extern __m512i __cdecl _mm512_mullo_epi32(__m512i a, __m512i b);

Multiplies the packed int32 elements in a and b, producing intermediate int64 elements, and stores the low 32 bits of the intermediate integers.


_mm512_mask_mullo_epi32

extern __m512i __cdecl _mm512_mask_mullo_epi32(__m512i src, __mmask16 k, __m512i a, __m512i b);

Multiplies the packed int32 elements in a and b, producing intermediate int64 elements, and stores the low 32 bits of the intermediate integers in destination using writemask k (elements are copied from src when the corresponding mask bit is not set).


_mm512_mul_epu32

extern __m512i __cdecl _mm512_mul_epu32(__m512i a, __m512i b);

Multiplies the low unsigned int32 elements from each packed 64-bit element in a and b, and stores the unsigned 64-bit result.


_mm512_mask_mul_epu32

extern __m512i __cdecl _mm512_mask_mul_epu32(__m512i src, __mmask8 k, __m512i a, __m512i b);

Multiplies the low unsigned int32 elements from each packed 64-bit element in a and b, and stores the unsigned 64-bit result using writemask k (elements are copied from src when the corresponding mask bit is not set).


_mm512_maskz_mul_epu32

extern __m512i __cdecl _mm512_maskz_mul_epu32(__mmask8 k, __m512i a, __m512i b);

Multiplies the low unsigned int32 elements from each packed 64-bit element in a and b, and stores the unsigned 64-bit result using zeromask k (elements are zeroed out when the corresponding mask bit is not set).



_mm512_mullox_epi64

extern __m512i __cdecl _mm512_mullox_epi64(__m512i a, __m512i b);

Multiplies each packed int64 element in a and b, and selects the low bits of each product.


_mm512_mask_mullox_epi64

extern __m512i __cdecl _mm512_mask_mullox_epi64(__m512i, __mmask8 k, __m512i a, __m512i b);

Multiplies each packed int64 element in a and b, and selects the low bits of each product, using zeromask k (elements are zeroed out when the corresponding mask bit is not set).



Para obtener información más completa sobre las optimizaciones del compilador, consulte nuestro Aviso de optimización.