libgomp/testsuite/libgomp.c/parloops-exit-first-loop-alt-3.c

   1 /* { dg-do run } */
   2 /* { dg-additional-options "-ftree-parallelize-loops=2" } */
   3
   4 /* Variable bound, reduction.  */
   5
   6 #include <stdlib.h>
   7
   8 #define N 4000
   9
  10 unsigned int *a;
  11
  12 unsigned int __attribute__((noclone,noinline))
  13 f (unsigned int n, unsigned int *__restrict__ a)
  14 {
  15   int i;
  16   unsigned int sum = 1;
  17
  18   for (i = 0; i < n; ++i)
  19     sum += a[i];
  20
  21   return sum;
  22 }
  23
  24 int
  25 main (void)
  26 {
  27   unsigned int res;
  28   unsigned int array[N];
  29   int i;
  30
  31   for (i = 0; i < N; ++i)
  32     array[i] = i % 7;
  33   a = &array[0];
  34
  35   res = f (N, a);
  36   if (res != 11995)
  37     abort ();
  38
  39   /* Test low iteration count case.  */
  40   res = f (10, a);
  41   if (res != 25)
  42     abort ();
  43
  44   return 0;
  45 }