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" } } */