re PR c++/67184 (Missed optimization with C++11 final specifier)

2019-06-26  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/67184
	PR c++/69445
	* g++.dg/other/final3.C: New.
	* g++.dg/other/final5.C: Likewise.

From-SVN: r272675

gcc/testsuite/ChangeLog

+2019-06-26  Paolo Carlini  <paolo.carlini@oracle.com>
+
+	PR c++/67184
+	PR c++/69445
+	* g++.dg/other/final3.C: New.
+	* g++.dg/other/final5.C: Likewise.
+
 2019-06-26  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/90991

gcc/testsuite/g++.dg/other/final3.C

+// PR c++/67184
+// { dg-do compile { target c++11 } }
+// { dg-options "-fdump-tree-original"  }
+
+struct V {
+ virtual void foo(); 
+};
+
+struct wV final : V {
+};
+
+struct oV final : V {
+  void foo();
+};
+
+void call(wV& x)
+{
+  x.foo();
+  x.V::foo();
+}
+
+void call(oV& x)
+{
+  x.foo();
+  x.V::foo();
+}
+
+// { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 0 "original" } }

gcc/testsuite/g++.dg/other/final5.C

+// PR c++/69445
+// { dg-do compile { target c++11 } }
+// { dg-options "-fdump-tree-original"  }
+
+struct Base {
+  virtual void foo() const = 0;
+  virtual void bar() const {}
+};
+
+struct C final : Base {
+  void foo() const { }
+};
+
+void func(const C & c) {
+  c.bar();
+  c.foo();
+}
+
+// { dg-final { scan-tree-dump-times "OBJ_TYPE_REF" 0 "original" } }