Developer Guide and Reference

Contents

_mm256_srav_epi32

Arithmetic shift of doubleword elements to right according variable values. The corresponding Intel® AVX2 instruction is
VPSRAVD
.

Syntax

extern __m256i _mm256_srav_epi32(__m256i s1, __m256i s2);
Arguments
s1
integer source vector used for the operation
s2
integer source vector providing variable values for shift operation
Description
Performs an arithmetic shift of 32 bits (doublewords) in the individual data elements in source vector
s1
to the right by the count value of corresponding data elements in source vector
s2
. As the bits in the data elements are shifted right, the empty high-order bits are filled with the initial value of the sign bit.
The count values are specified individually in each data element of the second source vector. If the unsigned integer value specified in the respective data element of the second source vector is greater than 31 (for a doubleword), then the destination data elements are filled with the initial value of the sign bit.
Returns
Result of the right-shift operation.