1  /* { dg-do run } */
       2  
       3  #include <string.h>
       4  #include <stdlib.h>
       5  #include <stdio.h>
       6  
       7  int
       8  main (void)
       9  {
      10    int i2, l = 0, r = 0, l2 = 0;
      11    int a[3][3][3];
      12  
      13    memset (a, '\0', sizeof (a));
      14    #pragma acc parallel
      15    #pragma acc loop collapse(4 - 1)
      16      for (int i = 0; i < 2; i++)
      17        for (int j = 0; j < 2; j++)
      18  	for (int k = 0; k < 2; k++)
      19  	  a[i][j][k] = i + j * 4 + k * 16;
      20  #pragma acc parallel
      21      {
      22        #pragma acc loop collapse(2) reduction(|:l)
      23  	for (i2 = 0; i2 < 2; i2++)
      24  	  for (int j = 0; j < 2; j++)
      25  	    for (int k = 0; k < 2; k++)
      26  	      if (a[i2][j][k] != i2 + j * 4 + k * 16)
      27  		l += 1;
      28      }
      29  
      30    /*  Test loop with >= condition.  */
      31  #pragma acc parallel
      32      {
      33        #pragma acc loop collapse(2) reduction(|:l2)
      34  	for (i2 = 0; i2 < 2; i2++)
      35  	  for (int j = 1; j >= 0; j--)
      36  	    for (int k = 0; k < 2; k++)
      37  	      if (a[i2][j][k] != i2 + j * 4 + k * 16)
      38  		l2 += 1;
      39      }
      40  
      41      for (i2 = 0; i2 < 2; i2++)
      42        for (int j = 0; j < 2; j++)
      43  	for (int k = 0; k < 2; k++)
      44  	  if (a[i2][j][k] != i2 + j * 4 + k * 16)
      45  	    r += 1;
      46  
      47    if (l != r || l2 != r)
      48      abort ();
      49    return 0;
      50  }