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_mm_add_epi64
ADD TO COMPARE ADDED TO COMPARE

 Intel 64-bit (64 bits)/ SSE4.2  View official documentation
 Location: Arithmetic  >  Vector Add
Purpose:
Add packed 64-bit integers in a and b, and store the results in output.
Result:

A 128-bit vector containing the resulf of the addition.

Example:
#include <emmintrin.h>
#include <stdio.h>
int main() {
 __m128i a = _mm_set_epi64x(2, 1);
 __m128i b = _mm_set_epi64x(6, 5);
 __m128i result = _mm_add_epi64(a, b);
 long long res[2];
 _mm_storeu_si128((__m128i*)res, result);
 printf("%lld %lld\n", res[0], res[1]);

 return 0;
}

Prototypes

Assembly Instruction:
paddq
Usage:
__m128i output = _mm_add_epi64( __m128i a, __m128i b )

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DB statistics
SIMD Engines: 5
C Intrinsics: 10702
NEON: 4232
AVX2: 462
AVX512: 4955
SSE4.2: 652
VSX: 401