1  /* Check that the three loops are fused.  */
       2  
       3  /* Make sure we fuse the loops like this:
       4  AST generated by isl:
       5  for (int c0 = 0; c0 <= 99; c0 += 1) {
       6    S_3(c0);
       7    S_6(c0);
       8    S_9(c0);
       9  }
      10  */
      11  
      12  /* { dg-final { scan-tree-dump-times "AST generated by isl:.*for \\(int c0 = 0; c0 <= 99; c0 \\+= 1\\) \\{.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*\\}" 1 "graphite" } } */
      13  
      14  #define MAX 100
      15  int A[MAX], B[MAX], C[MAX];
      16  
      17  extern void abort ();
      18  
      19  int
      20  main (void)
      21  {
      22    int i;
      23  
      24    /* The next three loops should be fused.  */
      25    for (i = 0; i < MAX; i++)
      26      {
      27        A[i] = i;
      28        B[i] = i + 2;
      29        C[i] = i + 1;
      30      }
      31    for(i=0; i<MAX; i++)
      32      A[i] += B[i];
      33    for(i=0; i<MAX; i++)
      34      A[i] += C[i];
      35  
      36    for (i = 0; i < MAX; i++)
      37      if (A[i] != 3*i+3)
      38        abort ();
      39  
      40    return 0;
      41  }