1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/warn/implicit-typename1.C b/gcc/testsuite/g++.dg/warn/implicit-typename1.C
new file mode 100644
index 00000000000..ab5587ef72e
--- /dev/null
+++ b/gcc/testsuite/g++.dg/warn/implicit-typename1.C
@@ -0,0 +1,17 @@
+// The -pedantic option must be omitted to trigger the crash.
+// { dg-do compile }
+// { dg-options "" }
+
+// PR c++/7982: Crash warning about implicit typename.
+// The base class refers to another typename, while the
+// name lookup finds a template.
+
+template <typename T> struct X {};
+
+template <typename T> struct C {
+  typedef typename T::X X;
+};
+
+template <typename T> struct A : public C<T> {
+  typedef X<int> X; // { dg-warning "lookup|dependent base|typename" }
+};