_mm_abs_epi32ADD TO COMPARE ADDED TO COMPARE
Intel 64-bit (64 bits)/ SSE4.2
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Purpose:
Compute the absolute value of packed signed 32-bit integers in a, and store the unsigned results in output.
Result:
A 128-bit vector of 4 x 32-bit signed integers that hold the absolute values of the input elements.
Example:
#include <tmmintrin.h>
#include <stdio.h>
int main() {
int32_t data[4] = {
-1, 2, -3, 4
};
__m128i a = _mm_loadu_si128((__m128i*)data);
__m128i result = _mm_abs_epi32(a);
int32_t result_data[4];
_mm_storeu_si128((__m128i*)result_data, result);
for (int i = 0; i < 4; ++i) {
printf("%d ", result_data[i]);
}
printf("\n");
return 0;
}Prototypes
Assembly Instruction:
pabsd
Usage:
_m128i result =
_mm_abs_epi32(
_m128i 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 |