1 files changed, 28 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/dfp/mangle-3.C b/gcc/testsuite/g++.dg/dfp/mangle-3.C
new file mode 100644
index 000000000..c716ed0e9
--- /dev/null
+++ b/gcc/testsuite/g++.dg/dfp/mangle-3.C
@@ -0,0 +1,28 @@
+// { dg-do compile }
+
+// Mangling of classes from std::decimal are special-cased.
+// Derived from g++.dg/abi/mangle20-1.C.
+
+namespace std {
+  namespace decimal {
+    class decimal64 {
+      public:
+	typedef float __decfloat64 __attribute__ ((mode (DD)));
+	explicit decimal64 (int __r):__val (__r) {}
+      private:
+	__decfloat64 __val;
+    };
+  }
+}
+
+template <int I> void f(std::decimal::decimal64 (*)[2]) {}
+template <int I> void g(std::decimal::decimal64 (*)[I+2]) {}
+
+static const std::decimal::decimal64 I(1);
+static const std::decimal::decimal64 J(2);
+
+template void f<1>(std::decimal::decimal64 (*)[2]);
+template void g<1>(std::decimal::decimal64 (*)[3]);
+
+//  { dg-final { scan-assembler "\n_?_Z1fILi1EEvPA2_Dd\[: \t\n\]" } }
+//  { dg-final { scan-assembler "\n_?_Z1gILi1EEvPAplT_Li2E_Dd\[: \t\n\]" } }