Don't add implicit casts of explicit address-taking of overloaded functions.

Taking the address of an overloaded function with an explicit address-of operator wrapped the operator in an implicit cast that added yet another pointer level, leaving us with a corrupted AST, which crashed CodeGen in the test case I've added. Fix this by making FixOverloadedFunctionReference return whether there was an address-of operator and not adding the implicit cast in that case.

llvm-svn: 84362

1 files changed, 9 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/address-of-fntemplate.cpp b/clang/test/CodeGenCXX/address-of-fntemplate.cpp
new file mode 100644
index 00000000000..cbf042551de
--- /dev/null
+++ b/clang/test/CodeGenCXX/address-of-fntemplate.cpp
@@ -0,0 +1,9 @@
+// RUN: clang-cc %s -emit-llvm -o - | FileCheck %s
+template <typename T> void f(T) {}
+
+void test() {
+  // FIXME: This emits only a declaration instead of a definition
+  // CHECK: @_Z1fIiEvT_
+  void (*p)(int) = &f;
+}
+// CHECK-disabled: define linkonce_odr void @_Z1fIiEvT_