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-rw-r--r--test/CodeGenCXX/devirtualize-virtual-function-calls.cpp47
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();
+}