1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/dfp/mangle-2.C b/gcc/testsuite/g++.dg/dfp/mangle-2.C
new file mode 100644
index 000000000..1af9aa1a0
--- /dev/null
+++ b/gcc/testsuite/g++.dg/dfp/mangle-2.C
@@ -0,0 +1,28 @@
+// { dg-do compile }
+
+// Mangling of classes from std::decimal are special-cased.
+// Derived from g++.dg/abi/mangle15.C.
+
+namespace std {
+  namespace decimal {
+    class decimal64 {
+      public:
+	typedef float __decfloat64 __attribute__ ((mode (DD)));
+	explicit decimal64 (float __r):__val (__r) {}
+      private:
+	__decfloat64 __val;
+    };
+  }
+}
+
+struct A {
+  template <typename T> std::decimal::decimal64 f ();
+};
+
+typedef std::decimal::decimal64 (A::*P)();
+
+template <P> struct S {};
+
+void g (S<&A::f<std::decimal::decimal64> >) {}
+
+// { dg-final { scan-assembler "\n?_Z1g1SIXadL_ZN1A1fIDdEEDdvEEE\[: \t\n\]" } }