View Compilation Error

0_0_37022406_8424.cpp: In function '__m256i calc(__m256i, __m256i, __m256i, __m256i)':
0_0_37022406_8424.cpp:11:17: error: cannot convert 'int' to '__m256i {aka __vector(4) long long int}' in initialization
  __m256i zero = 0;
                 ^
0_0_37022406_8424.cpp:12:8: error: could not convert '(a == zero)' from '__vector(4) long long int' to 'bool'
  if (a == zero) { // 迭代到最底层
        ^
0_0_37022406_8424.cpp:16: confused by earlier errors, bailing out