aboutsummaryrefslogtreecommitdiff
path: root/libgomp/testsuite/libgomp.oacc-c-c++-common/kernels-private-vars-loop-gang-4.c
blob: 4174248ee4e5089dd2eeea0366adb48b611e42d8 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
#include <assert.h>

/* Test of gang-private addressable variable declared on loop directive, with
   broadcasting to partitioned workers.  */

int
main (int argc, char* argv[])
{
  int x = 5, i, arr[32 * 32];

  for (i = 0; i < 32 * 32; i++)
    arr[i] = i;

  #pragma acc kernels copy(arr)
  {
    #pragma acc loop gang(num:32) private(x)
    for (i = 0; i < 32; i++)
      {
        int *p = &x;

	x = i * 2;

	#pragma acc loop worker(num:32)
	for (int j = 0; j < 32; j++)
	  arr[i * 32 + j] += x;

	(*p)--;
      }
  }

  for (i = 0; i < 32 * 32; i++)
    assert (arr[i] == i + (i / 32) * 2);

  return 0;
}