1 files changed, 71 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/Wunused-parm-3.C b/gcc/testsuite/g++.dg/warn/Wunused-parm-3.C
new file mode 100644
index 000000000..3f0a0e7d0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/Wunused-parm-3.C
@@ -0,0 +1,71 @@
+// { dg-do compile }
+// { dg-options "-Wunused -W" }
+// Suppress a warning that is irrelevant to the purpose of this test.
+// { dg-options "-Wunused -W -Wno-abi" { target arm_eabi } }
+
+#include <stdarg.h>
+
+struct A
+{
+  long a;
+  A () : a (0) { }
+  A (long x) : a (x) { }
+  operator long () const { return a; }
+  long operator- (const A& x) const { return a - x.a; }
+};
+
+long
+fn1 (A a)
+{
+  return a - A (0);
+}
+
+struct B
+{
+  bool operator() (const int x, const int y) const throw() { return x < y; }
+};
+
+template <typename T>
+bool 
+fn2 (int x, int y, T z)
+{
+  return z (x, y);
+}
+
+bool
+fn3 (void)
+{
+  return fn2 (1, 2, B ());
+}
+
+int
+fn4 (va_list ap)
+{
+  return va_arg (ap, int);
+}
+
+template <typename T>
+T
+fn5 (va_list ap)
+{
+  return va_arg (ap, T);
+}
+
+int
+fn6 (va_list ap)
+{
+  return fn5 <int> (ap);
+}
+
+template <typename T>
+int
+fn7 (T ap)
+{
+  return va_arg (ap, int);
+}
+
+int
+fn8 (va_list ap)
+{
+  return fn7 (ap);
+}