(root)/
gcc-13.2.0/
gcc/
testsuite/
gcc.dg/
graphite/
block-6.c
       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  int a[N][N];
      10  
      11  static int __attribute__((noinline))
      12  foo (void)
      13  {
      14    int i, j;
      15    int res = 0;
      16  
      17    /* Interchange is not legal for loops 0 and 1.  */
      18    for (i = 1; i < N; i++)
      19      for (j = 1; j < N - 1; j++)
      20        a[i][j] = a[i-1][j+1] * a[i-1][j+1] / 2;
      21  
      22    for (i = 0; i < N; i++)
      23      res += a[i][i];
      24  
      25    return res;
      26  }
      27  
      28  extern void abort ();
      29  
      30  int
      31  main (void)
      32  {
      33    int i, j, res;
      34  
      35    for (i = 0; i < N; i++)
      36      for (j = 0; j < N; j++)
      37        a[i][j] = i + j;
      38  
      39    res = foo ();
      40  
      41  #if DEBUG
      42    fprintf (stderr, "res = %d \n", res);
      43  #endif
      44  
      45    if (res != 204007516)
      46      abort ();
      47  
      48    return 0;
      49  }
      50  
      51  /* { dg-final { scan-tree-dump "tiled by" "graphite" } } */