_mm512_madd_epi16ADD TO COMPARE ADDED TO COMPARE
Intel 64-bit (64 bits)/ AVX512
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Purpose:
Multiply packed signed 16-bit integers in "a" and "b", producing intermediate signed 32-bit integers. Horizontally add adjacent pairs of intermediate 32-bit integers, and pack the results in "dst".
Result:
__m512i
Example:
#include <immintrin.h>
#include <stdio.h>
int main() {
__m512i a = _mm512_set_epi16( 32,31,30,29,28,27,26,25,24,23,22,21,20,19,18,17, 16,15,14,13,12,11,10,9,8,7,6,5,4,3,2,1 );
__m512i b = _mm512_set_epi16( 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16, 17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32 );
__m512i result = _mm512_madd_epi16(a, b);
int out[32];
_mm512_storeu_si512((__m512i*)out, result);
for(int i = 0; i < 32; i++)
printf("%d\n", out[i]);
return 0;
}Prototypes
Assembly Instruction:
vpmaddwd
Usage:
__m512i result =
_mm512_madd_epi16(
__m512i a, __m512i b
)
Performance Metrics:
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SIMD Intrinsics Summary
| SIMD Engines: | 6 |
| C Intrinsics: | 10444 |
| NEON: | 4353 |
| AVX2: | 405 |
| AVX512: | 4717 |
| SSE4.2: | 598 |
| VSX: | 192 |
| IBM-Z: | 179 |