Factor out devirtualization checking into a separate function and make it handle references correctly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@83880 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 18 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 0000000000..19206aebce
--- /dev/null
+++ b/test/CodeGenCXX/devirtualize-virtual-function-calls.cpp
@@ -0,0 +1,18 @@
+// RUN: clang-cc %s -emit-llvm -o - | FileCheck %s
+
+struct A {
+  virtual void f();
+};
+
+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();
+}