gcc/testsuite/gcc.dg/vect/vect-early-break_68.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-final { scan-tree-dump "LOOP VECTORIZED" "vect" } } */
   7
   8 #ifndef N
   9 #define N 800
  10 #endif
  11 unsigned vect_a1[N];
  12 unsigned vect_b1[N];
  13 unsigned vect_c1[N];
  14 unsigned vect_d1[N];
  15
  16 unsigned vect_a2[N];
  17 unsigned vect_b2[N];
  18 unsigned vect_c2[N];
  19 unsigned vect_d2[N];
  20
  21 unsigned test4(unsigned x)
  22 {
  23  unsigned ret = 0;
  24  for (int i = 0; i < N; i++)
  25  {
  26    vect_b1[i] += x + i;
  27    vect_c1[i] += x + i;
  28    vect_d1[i] += x + i;
  29    if (vect_a1[i]*2 != x)
  30      break;
  31    vect_a1[i] = x;
  32
  33    vect_b2[i] += x + i;
  34    vect_c2[i] += x + i;
  35    vect_d2[i] += x + i;
  36    if (vect_a2[i]*2 != x)
  37      break;
  38    vect_a2[i] = x;
  39
  40  }
  41  return ret;
  42 }