Patch to provide guard when initializing instances

of static data member of a class template.
Fixes //rdar :// 8562966 and pr8409.

llvm-svn: 117410

1 files changed, 29 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/specialized-static-data-mem-init.cpp b/clang/test/CodeGenCXX/specialized-static-data-mem-init.cpp
new file mode 100644
index 00000000000..8f5765bcbbe
--- /dev/null
+++ b/clang/test/CodeGenCXX/specialized-static-data-mem-init.cpp
@@ -0,0 +1,29 @@
+// RUN: %clang_cc1 %s -emit-llvm -o - | FileCheck %s
+// rdar: // 8562966
+// pr8409
+
+// CHECK: @_ZN1CIiE11needs_guardE = weak global
+// CHECK: @_ZGVN1CIiE11needs_guardE = weak global
+
+struct K
+{
+  K();
+  K(const K &);
+  ~K();
+  void PrintNumK();
+};
+
+template<typename T>
+struct C
+{
+  void Go() { needs_guard.PrintNumK(); }
+  static K needs_guard;
+};
+
+template<typename T> K C<T>::needs_guard;
+
+void F()
+{
+  C<int>().Go();
+}
+