1 files changed, 48 insertions, 0 deletions
diff --git a/clang/test/CodeGenCXX/virtual-bases.cpp b/clang/test/CodeGenCXX/virtual-bases.cpp
new file mode 100644
index 0000000..c9f13f8
--- /dev/null
+++ b/clang/test/CodeGenCXX/virtual-bases.cpp
@@ -0,0 +1,48 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 -mconstructor-aliases | FileCheck %s
+
+struct A { 
+  A();
+};
+
+// CHECK: @_ZN1AC1Ev = alias {{.*}} @_ZN1AC2Ev
+// CHECK: define void @_ZN1AC2Ev(%struct.A* %this) unnamed_addr
+A::A() { }
+
+struct B : virtual A { 
+  B();
+};
+
+// CHECK: define void @_ZN1BC1Ev(%struct.B* %this) unnamed_addr
+// CHECK: define void @_ZN1BC2Ev(%struct.B* %this, i8** %vtt) unnamed_addr
+B::B() { }
+
+struct C : virtual A {
+  C(bool);
+};
+
+// CHECK: define void @_ZN1CC1Eb(%struct.C* %this, i1 zeroext) unnamed_addr
+// CHECK: define void @_ZN1CC2Eb(%struct.C* %this, i8** %vtt, i1 zeroext) unnamed_addr
+C::C(bool) { }
+
+// PR6251
+namespace PR6251 {
+
+// Test that we don't call the A<char> constructor twice.
+
+template<typename T>
+struct A { A(); };
+
+struct B : virtual A<char> { };
+struct C : virtual A<char> { };
+
+struct D : B, C  {
+  D();
+};
+
+// CHECK: define void @_ZN6PR62511DC1Ev(%"struct.PR6251::D"* %this) unnamed_addr
+// CHECK: call void @_ZN6PR62511AIcEC2Ev
+// CHECK-NOT: call void @_ZN6PR62511AIcEC2Ev
+// CHECK: ret void
+D::D() { }
+
+}