_mm512_abs_epi8ADD TO COMPARE ADDED TO COMPARE
Intel 64-bit (64 bits)/ AVX512
View official documentation
Purpose:
Compute the absolute value of packed signed 8-bit integers in "a", and store the unsigned results in "dst".
Result:
__m512i
Example:
#include <immintrin.h>
#include <stdio.h>
int main() {
__m512i a = _mm512_set_epi8( -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, -33, 34, -35, 36, -37, 38, -39, 40, -41, 42, -43, 44, -45, 46, -47, 48, -49, 50, -51, 52, -53, 54, -55, 56, -57, 58, -59, 60, -61, 62, -63, 64 );
__m512i r = _mm512_abs_epi8(a);
unsigned char* p = (unsigned char*)&r;
for (int i = 0; i < 64; i++)
printf("%u ", p[i]);
printf("\n");
return 0;
}Prototypes
Assembly Instruction:
vpabsb
Usage:
__m512i result =
_mm512_abs_epi8(
__m512i a
)
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 |