gcc/testsuite/gcc.dg/vect/O3-pr41881.c

   1 /* { dg-do compile } */
   2
   3 #define TYPE int
   4
   5 TYPE fun1(TYPE *x, TYPE *y, unsigned int n)
   6 {
   7   int i, j;
   8   TYPE dot = 0;
   9
  10   for (i = 0; i < n; i++)
  11     dot += *(x++) * *(y++);
  12
  13   return dot;
  14 }
  15
  16 TYPE fun2(TYPE *x, TYPE *y, unsigned int n)
  17 {
  18   int i, j;
  19   TYPE dot = 0;
  20
  21   for (i = 0; i < n / 8; i++)
  22     for (j = 0; j < 8; j++)
  23       dot += *(x++) * *(y++);
  24
  25   return dot;
  26 }
  27
  28 /* { dg-final { scan-tree-dump-times "vectorized 1 loops" 2 "vect" { target { vect_int_mult && {! vect_no_align } } } } } */
  29