1  /* { dg-require-effective-target size32plus } */
       2  
       3  #define DEBUG 0
       4  #if DEBUG
       5  #include <stdio.h>
       6  #endif
       7  
       8  #define N 200
       9  
      10  int A[N][N], B[N][N], C[N][N];
      11  
      12  static int __attribute__((noinline))
      13  matmult (void)
      14  {
      15    int i, j, k;
      16  
      17    /* Loops J and K should be interchanged.  */
      18    for (i = 0; i < N; i++)
      19      for (j = 0; j < N; j++)
      20        {
      21          A[i][j] = 0;
      22          for (k = 0; k < N; k++)
      23            A[i][j] += B[i][k] * C[k][j];
      24        }
      25  
      26    return A[0][0] + A[N-1][N-1];
      27  }
      28  
      29  extern void abort ();
      30  
      31  int
      32  main (void)
      33  {
      34    int i, j, res;
      35  
      36    for (i = 0; i < N; i++)
      37      for (j = 0; j < N; j++)
      38        {
      39  	A[i][j] = 0;
      40  	B[i][j] = i - j;
      41  	C[i][j] = i + j;
      42        }
      43  
      44    res = matmult ();
      45  
      46  #if DEBUG
      47    fprintf (stderr, "res = %d \n", res);
      48  #endif
      49  
      50    if (res != 2626800)
      51      abort ();
      52  
      53    return 0;
      54  }
      55  
      56  /* { dg-final { scan-tree-dump "tiled by" "graphite" } } */