modernc.org/cc@v1.0.1/testdata/gcc-6.3.0/gcc/testsuite/gcc.c-torture/compile/simd-5.c (about)

     1  #define vector64 __attribute__((vector_size(8)))
     2  
     3  main(){
     4  
     5   vector64 int  c;
     6  vector64 int a = {1, -1};
     7  vector64 int b = {2, -2};
     8  c = -a + b*b*(-1LL);
     9  /* c is now {5, 3} */
    10  
    11   printf("result is %llx\n", (long long)c); 
    12  }