1 files changed, 53 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/interchange-1.c b/gcc/testsuite/gcc.dg/graphite/interchange-1.c
new file mode 100644
index 000000000..b4559d132
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/interchange-1.c
@@ -0,0 +1,53 @@
+/* { dg-require-effective-target size32plus } */
+
+/* Formerly known as ltrans-1.c */
+
+#define DEBUG 0
+#if DEBUG
+#include <stdio.h>
+#endif
+
+double u[1782225];
+
+static int __attribute__((noinline))
+foo (int N)
+{
+  int i, j;
+  double sum = 0.0;
+
+  /* These two loops should be interchanged.  */
+  for (i = 0; i < N; i++)
+    {
+      for (j = 0; j < N; j++)
+	sum = sum + u[i + 1335 * j];
+
+      u[1336 * i] *= 2;
+    }
+
+  return sum + N + u[1336 * 2] + u[1336];
+}
+
+extern void abort ();
+
+int
+main (void)
+{
+  int i, j, res;
+
+  for (i = 0; i < 1782225; i++)
+    u[i] = 2;
+
+  res = foo (1335);
+
+#if DEBUG
+  fprintf (stderr, "res = %d \n", res);
+#endif
+
+  if (res != 3565793)
+    abort ();
+
+  return 0;
+}
+
+/* { dg-final { scan-tree-dump-times "will be interchanged" 1 "graphite" } } */
+/* { dg-final { cleanup-tree-dump "graphite" } } */