Developer Guide and Reference

Contents

_mm256_max_epi8/16/32

Determines the maximum value between two vectors with packed signed byte/word/doubleword integers. The corresponding Intel® AVX2 instruction is
VPMAXSB
,
VPMAXSW
, or
VPMAXSD
.

Syntax

extern __m256i _mm256_max_epi8(__m256i s1, __m256i s2);
extern __m256i _mm256_max_epi16(__m256i s1, __m256i s2);
extern __m256i _mm256_max_epi32(__m256i s1, __m256i s2);
Arguments
s1
integer source vector used for the operation
s2
integer source vector used for the operation
Description
Performs a SIMD compare of the packed signed byte, word, or doubleword integers in source vectors
s1
and
s2
and returns the maximum value for each pair of integers to the destination vector.
Returns
Destination vector with result of the compare operation.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804