1 files changed, 43 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/sibcall-7.c b/gcc/testsuite/gcc.dg/sibcall-7.c
new file mode 100644
index 00000000000..273c2c36d21
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/sibcall-7.c
@@ -0,0 +1,43 @@
+/* Simple check that tail recursive call optimization is also
+   controlled by -foptimize-sibling-calls.
+
+   Copyright (C) 2006 Free Software Foundation Inc.
+   Original test by Hans-Peter Nilsson  <hp@bitrange.com>  */
+
+/* { dg-do run } */
+/* { dg-options "-O2 -fno-optimize-sibling-calls" } */
+
+
+extern void abort (void);
+
+extern void recurser_void (int);
+extern void track (int);
+
+int main (void)
+{
+  recurser_void (0);
+  return 0;
+}
+
+void recurser_void (int n)
+{
+  if (n == 0 || n == 7)
+    track (n);
+
+  if (n == 10)
+    return;
+
+  recurser_void (n + 1);
+}
+
+void *trackpoint;
+
+void track (int n)
+{
+  char stackpos[1];
+
+  if (n == 0)
+    trackpoint = stackpos;
+  else if (n != 7 || trackpoint == stackpos)
+    abort ();
+}