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_mm256_cmpgt_epi8/16/32/64

Compares packed bytes/words/doublewords/quadwords of two source vectors. The corresponding Intel® AVX2 instruction is
VPCMPGTB
,
VPCMPGTW
,
VPCMPGTD
, or
VPCMPGTQ
.

Syntax

extern __m256i _mm256_cmpgt_epi8(__m256i s1, __m256i s2);
extern __m256i _mm256_cmpgt_epi16(__m256i s1, __m256i s2);
extern __m256i _mm256_cmpgt_epi32(__m256i s1, __m256i s2);
extern __m256i _mm256_cmpgt_epi64(__m256i s1, __m256i s2);
Arguments
s1
integer destination vector used for the operation
s2
integer source vector used for the operation
Description
Performs a SIMD signed compare to determine which of the data elements [packed bytes, words, doublewords, or quadwords] in destination vector
s1
is greater than the corresponding element in the source vector
s2
.
For each pair of data elements in
s1
and
s2
, if the
s1
data element is greater than the corresponding element in
s2
, then the corresponding element in the destination vector is set to all 1s. If the
s1
data element is less than the corresponding data element in
s2
, then the corresponding data element in destination vector is set to all 0s.
If the data elements are equal, the destination vector is set to 0.
Returns
Destination