[pushed] c++: Add fixed test [PR83596]

[Marek Polacek via Gcc-patches]

This was fixed by r269078.

Tested x86_64-pc-linux-gnu, applying to trunk.

        PR c++/83596

gcc/testsuite/ChangeLog:

        * g++.dg/cpp1z/nontype5.C: New test.
---
 gcc/testsuite/g++.dg/cpp1z/nontype5.C | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 gcc/testsuite/g++.dg/cpp1z/nontype5.C

diff --git a/gcc/testsuite/g++.dg/cpp1z/nontype5.C 
b/gcc/testsuite/g++.dg/cpp1z/nontype5.C
new file mode 100644
index 00000000000..7e6639dd175
--- /dev/null
+++ b/gcc/testsuite/g++.dg/cpp1z/nontype5.C
@@ -0,0 +1,11 @@
+// PR c++/83596
+// { dg-do compile { target c++17 } }
+
+struct X { int x; int y; };
+template <int X::* mp> int get(X& x) { return x.*mp; }
+constexpr int X::* getMP() { return &X::y; }
+constexpr int X::* mptr = getMP();
+int test() {
+    X x{1, 2};
+    return get<mptr>(x);
+}

base-commit: bb7cf39b05a216431a431499d0c36a6034f6acc4
-- 
2.35.1