1 files changed, 50 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/interchange-0.c b/gcc/testsuite/gcc.dg/graphite/interchange-0.c
new file mode 100644
index 0000000000..8bc6e13266
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/interchange-0.c
@@ -0,0 +1,50 @@
+/* { dg-require-effective-target size32plus } */
+
+#define DEBUG 0
+
+#if DEBUG
+#include <stdio.h>
+#endif
+
+#define N 1000
+int a[N][N];
+
+static int __attribute__((noinline))
+foo (void)
+{
+  int j;
+  int i;
+
+  for (i = 0; i < N; i++)
+    for (j = 0; j < N; j++)
+      a[j][i] = a[j][i] + 1;
+
+  return a[N-1][N-1];
+}
+
+extern void abort ();
+
+int
+main (void)
+{
+  int i, j, res;
+
+  for (i = 0; i < N; i++)
+    for (j = 0; j < N; j++)
+      a[i][j] = 1;
+
+  a[N-1][N-1] = 12;
+  res = foo ();
+
+#if DEBUG
+  fprintf (stderr, "res = %d \n", res);
+#endif
+
+  if (res != 13)
+    abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
+/* { dg-final { cleanup-tree-dump "graphite" } } */