mt/vvadd3.c

   1 #include "stdlib.h"
   2 #include "dataset.h"
   3
   4 void __attribute__((noinline)) vvadd(int coreid, int ncores, size_t n, const data_t* x, const data_t* y, data_t* z)
   5 {
   6   data_t* to = &z[coreid * (n / ncores)];
   7   const data_t* from1 = &x[coreid * (n / ncores)];
   8   const data_t* from2 = &y[coreid * (n / ncores)];
   9   size_t count = n / ncores;
  10   size_t c = (count + 7) / 8;
  11   switch(count % 8) {
  12     case 0: do {  *to++ = *from1++ + *from2++;
  13     case 7:       *to++ = *from1++ + *from2++;
  14     case 6:       *to++ = *from1++ + *from2++;
  15     case 5:       *to++ = *from1++ + *from2++;
  16     case 4:       *to++ = *from1++ + *from2++;
  17     case 3:       *to++ = *from1++ + *from2++;
  18     case 2:       *to++ = *from1++ + *from2++;
  19     case 1:       *to++ = *from1++ + *from2++;
  20   } while(--c > 0);
  21   }
  22 }