1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/20041104-1.c b/gcc/testsuite/gcc.dg/20041104-1.c
new file mode 100644
index 000000000..b4d359d1e
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/20041104-1.c
@@ -0,0 +1,18 @@
+/* This testcase exposed the same bug as PR 15342.  */
+/* { dg-options "-O2 -frename-registers -fno-schedule-insns" } */
+
+void *memcpy (void *, const void *, __SIZE_TYPE__);
+
+void f (int n, int (*x)[4])
+{
+  while (n--)
+    {
+      int f = x[0][0];
+      if (f <= 0)
+	memcpy (&x[1], &x[0], sizeof (x[0]));
+      else
+	memcpy (&x[f], &x[0], sizeof (x[0]));
+      f = x[0][2];
+      x[0][1] = f;
+    }
+}