1 files changed, 46 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/graphite/pr46185.c b/gcc/testsuite/gcc.dg/graphite/pr46185.c
new file mode 100644
index 000000000..36d46a41c
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/graphite/pr46185.c
@@ -0,0 +1,46 @@
+/* { dg-do run } */
+/* { dg-options "-O2 -floop-interchange -ffast-math -fno-ipa-cp" } */
+
+#define DEBUG 0
+#if DEBUG
+#include <stdio.h>
+#endif
+
+double u[1782225];
+
+static int __attribute__((noinline))
+foo (int N, int *res)
+{
+  int i, j;
+  double sum = 0;
+  for (i = 0; i < N; i++)
+    for (j = 0; j < N; j++)
+      sum = sum + u[i + 1335 * j];
+
+  for (i = 0; i < N; i++)
+    u[1336 * i] *= 2;
+
+  *res = 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;
+
+  foo (1335, &res);
+
+#if DEBUG
+  fprintf (stderr, "res = %d \n", res);
+#endif
+
+  if (res != 3565793)
+    abort ();
+
+  return 0;
+}