Make two vtable tests tolerate C++11.

In C++11 we don't emit vtables as eagerly as we do for C++03, so
fiddle the tests to emit them when the test expects them.

Differential Revision: http://reviews.llvm.org/D27994


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@290205 91177308-0d34-0410-b5e6-96231b3b80d8

test/CodeGenCXX/vtable-layout.cpp

@@ -1919,6 +1919,8 @@ namespace Test40 {
     virtual int i(int);
     virtual int i();
   };
+  // Force C's vtable to be generated.
+  int C::f() { return 1; }
 
   class D : C {};
 

test/CodeGenCXX/vtable-linkage.cpp

 // RUN: %clang_cc1 %s -triple=x86_64-pc-linux -emit-llvm -o %t
+// RUN: %clang_cc1 %s -triple=x86_64-pc-linux -emit-llvm -std=c++03 -o %t.03
+// RUN: %clang_cc1 %s -triple=x86_64-pc-linux -emit-llvm -std=c++11 -o %t.11
 // RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -disable-llvm-optzns -O3 -emit-llvm -o %t.opt
 // RUN: FileCheck %s < %t
+// RUN: FileCheck %s < %t.03
+// RUN: FileCheck %s < %t.11
 // RUN: FileCheck --check-prefix=CHECK-OPT %s < %t.opt
 
 namespace {
@@ -33,6 +37,11 @@ void D::f() { }
 
 static struct : D { } e;
 
+// Force 'e' to be constructed and therefore have a vtable defined.
+void use_e() {
+  e.f();
+}
+
 // The destructor is the key function.
 template<typename T>
 struct E {