gcc/testsuite/gcc.dg/graphite/interchange-0.c

   1 /* { dg-require-effective-target size32plus } */
   2
   3 #define DEBUG 0
   4
   5 #if DEBUG
   6 #include <stdio.h>
   7 #endif
   8
   9 #define N 1000
  10 int a[N][N];
  11
  12 static int __attribute__((noinline))
  13 foo (void)
  14 {
  15   int j;
  16   int i;
  17
  18   for (i = 0; i < N; i++)
  19     for (j = 0; j < N; j++)
  20       a[j][i] = a[j][i] + 1;
  21
  22   return a[N-1][N-1];
  23 }
  24
  25 extern void abort ();
  26
  27 int
  28 main (void)
  29 {
  30   int i, j, res;
  31
  32   for (i = 0; i < N; i++)
  33     for (j = 0; j < N; j++)
  34       a[i][j] = 1;
  35
  36   a[N-1][N-1] = 12;
  37   res = foo ();
  38
  39 #if DEBUG
  40   fprintf (stderr, "res = %d \n", res);
  41 #endif
  42
  43   if (res != 13)
  44     abort ();
  45
  46   return 0;
  47 }
  48
  49 /* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
  50 /* { dg-final { cleanup-tree-dump "graphite" } } */