Developer Guide and Reference

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_mm256_packus_epi16/32

Pack signed word/doubleword integers to unsigned byte/word integers and saturates. The corresponding Intel® AVX2 instruction is
VPACKUSWB
or
VPACKUSDW
.

Syntax

extern __m256i _mm256_packus_epi16(__m256i a, __m256i b);
extern __m256i _mm256_packus_epi32(__m256i a, __m256i b);
Arguments
a
integer source operand used for the operation
b
integer source operand used for the operation
Description
The
_mm256_packus_epi16
intrinsic converts 16 packed signed word integers from source operands
a
and
b
into 32 packed unsigned byte integers. The
_mm256_packus_epi32
intrinsic converts eight packed signed doubleword integers from the source operands
a
and
b
into 16 packed unsigned word integers.
Returns
Result of the pack operation.