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I have a program that uses _mm_crc32_u64. I include the header file smmintrin.h for that purpose and also use the flag -msse4.1 when compiling it with gcc. However, when I compile it I get undefined reference to _mm_crc32_u64 error. What is the problem here?
I did it like this and it worked! So basically I had to use msse4.2 instead of msse4.1.