Intel® C++ Compiler 16.0 User and Reference Guide
Multiply int32 vectors and store the low half of the result. The corresponding instruction is VMULLPI. This intrinsic only applies to Intel® Many Integrated Core Architecture (Intel® MIC Architecture).
Without Mask extern _m512i __cdecl _mm512_mullo_epi32(_m512i v2, _m512i v3); |
With Mask extern _m512i __cdecl _mm512_mask_mullo_epi32(_m512i v1_old, __mmask16 k1, _m512i v2, _m512i v3); |
v2 |
int32 vector multiplied to int32 vector v3 |
v3 |
int32 vector multiplied to int32 vector v2; can contain the result of a swizzle/broadcast/conversion process on a memory or int32 vector |
v1_old |
Source vector that retains old values of the destination vector; the resulting vector gets corresponding elements from v1_old for zero mask bits |
k1 |
Writemask; only those elements of the source vectors with corresponding bit set to '1' in the k1 mask are computed and stored in the result; elements in the result vector corresponding to zero bit in k1 are copied from corresponding elements of vector v1_old |
Performs an element-by-element multiplication between int32 vector v2 and the int32 vector v3. The low 32 bits of the result are written into int32 result vector.
The masked variant has one additional argument: k1. Only those elements in source registers with the corresponding bit set in vector mask k1 are used for computing. The remaining elements of the resulting vector are filled with corresponding elements from v1_old.
Returns the result of the multiplication operation in an int32 result vector.