test that the ptr-to-method is succefully eliminated, leaving just the vtable dispatch.

llvm-svn: 41047

1 files changed, 14 insertions, 0 deletions

diff --git a/llvm/test/C++Frontend/ptr-to-method-devirt.cpp b/llvm/test/C++Frontend/ptr-to-method-devirt.cpp
new file mode 100644
index 00000000000..358b801af55
--- /dev/null
+++ b/llvm/test/C++Frontend/ptr-to-method-devirt.cpp
@@ -0,0 +1,14 @@
+// PR1602
+// RUN: %llvmgxx -c -emit-llvm %s -o - -O3 | llvm-dis | not grep ptrtoint
+// RUN: %llvmgxx -c -emit-llvm %s -o - -O3 | llvm-dis | grep getelementptr | count 1
+
+
+struct S { virtual void f(); };
+
+typedef void (S::*P)(void);
+
+const P p = &S::f; 
+
+void g(S s) {
+   (s.*p)();
+ }