_mm256_add_pdADD TO COMPARE ADDED TO COMPARE
Intel 64-bit (64 bits)/ AVX2
View official documentation
View Félix Cloutier's documentation
Purpose:
Add packed double-precision (64-bit) floating-point elements in a and b
Result:
A 256-bit vector that contains the result of the addition.
Example:
#include <immintrin.h>
#include <stdio.h>
int main() {
__m256d a = _mm256_set_pd(1.5, 2.5, 3.5, 4.5);
__m256d b = _mm256_set_pd(4.0, 3.0, 2.0, 1.0);
__m256d result = _mm256_add_pd(a, b);
double* res = (double*)&result;
for (int i = 0; i < 4; ++i) {
printf("%f ", res[i]);
}
printf("\n");
return 0;
}Prototypes
Assembly Instruction:
vaddpd
Usage:
__m256d result =
_mm256_add_pd(
__m256d a, __m256d 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 |