vendor/clang/clang-r84119

1 files changed, 47 insertions, 0 deletions

diff --git a/test/CodeGenCXX/devirtualize-virtual-function-calls.cpp b/test/CodeGenCXX/devirtualize-virtual-function-calls.cpp
new file mode 100644
index 000000000000..cbf55ad61331
--- /dev/null
+++ b/test/CodeGenCXX/devirtualize-virtual-function-calls.cpp
@@ -0,0 +1,47 @@
+// RUN: clang-cc %s -emit-llvm -o - | FileCheck %s
+
+struct A {
+  virtual void f();
+  
+  A h();
+};
+
+A g();
+
+void f(A a, A *ap, A& ar) {
+  // This should not be a virtual function call.
+  
+  // CHECK: call void @_ZN1A1fEv(%struct.A* %a)
+  a.f();
+
+  // CHECK: call void %  
+  ap->f();
+
+  // CHECK: call void %  
+  ar.f();
+  
+  // CHECK: call void @_ZN1A1fEv
+  A().f();
+
+  // CHECK: call void @_ZN1A1fEv
+  g().f();
+  
+  // CHECK: call void @_ZN1A1fEv
+  a.h().f();
+}
+
+struct B {
+  virtual void f();
+  ~B();
+  
+  B h();
+};
+
+
+void f() {
+  // CHECK: call void @_ZN1B1fEv
+  B().f();
+  
+  // CHECK: call void @_ZN1B1fEv
+  B().h().f();
+}