Logical shift of byte elements to right according to specified number. The corresponding Intel® AVX2 instruction is VPSRLDQ.

Syntax

extern __m256i _mm256_srli_si256(__m256i s1, const int count);

Arguments

s1

integer source vector used for the operation

count

8-bit immediate used for the operation

Description

Performs a logical shift of 8-bit [byte] elements within a 128-bit lane of source vector s1 to the right by the number of bytes specified in count. The empty low-order bytes are cleared (set to all '0'). If the value specified by count is greater than 15, the destination vector is set to all '0'. The count argument is an 8-bit immediate.

Returns

Result of the right-shift operation.

有关编译器优化的更完整信息,请参阅优化通知