gcc/testsuite/gcc.dg/vect/vect-early-break_6.c

   1 /* { dg-add-options vect_early_break } */
   2 /* { dg-do compile } */
   3 /* { dg-require-effective-target vect_early_break } */
   4 /* { dg-require-effective-target vect_int } */
   5
   6 /* { dg-additional-options "-Ofast" } */
   7
   8 /* { dg-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
   9
  10 #define N 1024
  11 unsigned vect_a[N];
  12 unsigned vect_b[N];
  13
  14 unsigned test4(unsigned x)
  15 {
  16  unsigned ret = 0;
  17  for (int i = 0; i < (N/2); i+=2)
  18  {
  19    vect_b[i] = x + i;
  20    vect_b[i+1] = x + i+1;
  21    if (vect_a[i] > x || vect_a[i+1] > x)
  22      break;
  23    vect_a[i] += x * vect_b[i];
  24    vect_a[i+1] += x * vect_b[i+1];
  25  }
  26  return ret;
  27 }