gcc/testsuite/gcc.dg/graphite/block-5.c


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#define N 10000
void foo (int);
int test ()
{
  int a[N][N];
  int b[N][N];
  unsigned i, j;

  for (i = 0; i < N; i++) 
    for (j = 0; j < N; j++)
      a[i][j] = i*j;

  for (j = 1; j < N; j++) 
    for (i = 0; i < N; i++)
      a[i][j] = a[i][j-1] + b[i][j];

  for (i = 0; i < N; i++) 
    for (j = 0; j < N; j++) 
      foo (a[i][j]); 
}

/* Interchange is legal for loops 0 and 1 of the first two SCoPs */
/* { dg-final { scan-tree-dump-times "Interchange valid for loops 0 and 1:" 2 "graphite" { xfail *-*-* } } } */
/* { dg-final { cleanup-tree-dump "graphite" } } */