https://software.intel.com/sites/landingpage/IntrinsicsGuide/#text=_mm_xor_si128&expand=5665,3337,227,6151 异或 ``` __m128i _mm_xor_si128 (__m128i a, __m128i b) Synopsis __m128i _mm_xor_si128 (__m128i a, __m128i b) #include <emmintrin.h> Instruction: pxor xmm, xmm CPUID Flags: SSE2 Description Compute the bitwise XOR of 128 bits (representing integer data) in a and b, and store the result in dst. Operation dst[127:0] := (a[127:0] XOR b[127:0]) Performance Architecture Latency Throughput (CPI) Skylake 1 0.33 Broadwell 1 0.33 Haswell 1 0.33 Ivy Bridge 1 0.33 ```