3 files changed, 102 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/cpp1y/constexpr-84192.C b/gcc/testsuite/g++.dg/cpp1y/constexpr-84192.C
new file mode 100644
index 00000000000..ad9458d238f
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/constexpr-84192.C
@@ -0,0 +1,41 @@
+// PR c++/84192
+// { dg-do compile { target c++14 } }
+// { dg-options "" }
+
+bool
+f1 ()
+{ 
+  return ({ return true; }) && false;	// { dg-error "could not convert" }
+}
+
+void
+f2 ()
+{ 
+  for (;;)
+    constexpr bool b = ({ break; false; }) && false;	// { dg-error "statement is not a constant expression" }
+}
+
+constexpr bool
+f3 (int n)
+{
+  bool b = false;
+  for (int i = 0; i < n; i++)
+    b = ({ break; });	// { dg-error "void value not ignored as it ought to be" }
+  return b;
+}
+
+constexpr bool b = f3 (4);
+
+bool
+f4 ()
+{
+  constexpr bool b = ({ return true; }) && false;	// { dg-error "could not convert" }
+  return false;
+}
+
+constexpr bool
+f5 (int x)
+{
+  constexpr bool b = ({ switch (x) case 0: true; }) && false;	// { dg-error "could not convert" }
+  return false;
+}
diff --git a/gcc/testsuite/g++.dg/cpp1y/lambda-generic-variadic14.C b/gcc/testsuite/g++.dg/cpp1y/lambda-generic-variadic14.C
new file mode 100644
index 00000000000..76567966293
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/lambda-generic-variadic14.C
@@ -0,0 +1,17 @@
+// PR c++/84368
+// { dg-do compile { target c++14 } }
+
+template < typename ... T >
+void sink(T ...){}
+
+template < typename ... T >
+void foo(T ... v){
+    [](auto ... v){
+        auto bar = [](auto, auto){ return 0; };
+        sink(bar(v, T{}) ...);
+    }(v ...);
+}
+
+int main(){
+    foo(0);
+}
diff --git a/gcc/testsuite/g++.dg/cpp1y/pr84496.C b/gcc/testsuite/g++.dg/cpp1y/pr84496.C
new file mode 100644
index 00000000000..028d00235cd
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1y/pr84496.C
@@ -0,0 +1,44 @@
+// PR c++/84496
+// { dg-do compile { target c++14 } }
+
+template <typename T, T n> struct C { static constexpr T D = n; };
+struct E : C<bool, false> {};
+template <typename> struct F : C<bool, false> {};
+template <typename T> T foo ();
+template <typename> struct H { typedef int G; };
+template <typename> class I;
+struct L;
+template <typename, typename> struct J;
+template <bool, bool, typename...> struct K;
+struct R {
+  template <typename M, typename... N>
+  static J<decltype (foo<M> () (foo<N>...)), L> o;
+};
+template <typename P, typename... Q> struct K<false, false, P, Q...> : R {
+  typedef decltype (o<P, Q...>) G;
+};
+template <typename P, typename... Q>
+struct D : K<E::D, F<typename H<P>::G>::D, P, Q...> {};
+template <typename P, typename... Q> struct I<P (Q...)> : D<P, Q...> {};
+template <typename> class function;
+template <typename S, typename... Q> struct function<S (Q...)> {
+  template <typename T, typename = typename I<T (Q...)>::G> struct C;
+  template <typename, typename> using U = int;
+  template <typename P, typename = U<int, void>, typename = U<C<P>, void>>
+  function (P);
+};
+template <typename S, typename... Q>
+template <typename P, typename, typename>
+function<S (Q...)>::function (P)
+{
+}
+void bar (function<void (int)>);
+
+void
+baz ()
+{
+  auto a = [] {
+    static int counter;
+    bar ([] (auto) { counter++; });
+  };
+}