1 files changed, 35 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/dfp/mangle-4.C b/gcc/testsuite/g++.dg/dfp/mangle-4.C
new file mode 100644
index 000000000..899d5661c
--- /dev/null
+++ b/gcc/testsuite/g++.dg/dfp/mangle-4.C
@@ -0,0 +1,35 @@
+// { dg-do compile }
+
+// Mangling of classes from std::decimal are special-cased.
+// Derived from g++.dg/abi/mangle30.C.
+
+namespace std {
+  namespace decimal {
+    class decimal64 {
+      public:
+	typedef float __decfloat64 __attribute__ ((mode (DD)));
+	explicit decimal64 (int __r):__val (__r) {}
+      private:
+	__decfloat64 __val;
+    };
+  }
+}
+
+struct A
+{
+  template <class T>
+  struct B
+  {
+    typedef T myT;
+  };
+};
+
+template <class T>
+void f (T t, typename T::template B<std::decimal::decimal64>::myT u, typename T::template B<int>::myT v);
+
+void foo ()
+{
+  f (A(), std::decimal::decimal64(0), 1);
+}
+
+// { dg-final { scan-assembler "_Z1fI1AEvT_NS1_1BIDdE3myTENS2_IiE3myTE" } }