2 files changed, 34 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/opt/pr70847.C b/gcc/testsuite/g++.dg/opt/pr70847.C
new file mode 100644
index 00000000000..2b5435317cb
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr70847.C
@@ -0,0 +1,11 @@
+// PR c++/70847
+// { dg-do compile }
+
+struct D { virtual D& f(); };
+
+void
+g()
+{
+  D d;
+  d.f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f().f();
+}
diff --git a/gcc/testsuite/g++.dg/opt/pr71528.C b/gcc/testsuite/g++.dg/opt/pr71528.C
new file mode 100644
index 00000000000..bfe06220472
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/pr71528.C
@@ -0,0 +1,23 @@
+// PR c++/71528
+// { dg-do run }
+// { dg-options "-O2" }
+
+extern int &x;
+int y;
+
+int &
+foo ()
+{
+  return y;
+}
+
+int &x = foo ();
+
+int
+main ()
+{
+  if (&x != &y)
+    __builtin_abort ();
+}
+
+extern int &x;