PR19254: If a thread_local data member of a class is accessed via member access
syntax, don't forget to run its initializer.

llvm-svn: 204869
diff --git a/clang/test/CodeGenCXX/cxx11-thread-local.cpp b/clang/test/CodeGenCXX/cxx11-thread-local.cpp
index 509562d..86734cd 100644
--- a/clang/test/CodeGenCXX/cxx11-thread-local.cpp
+++ b/clang/test/CodeGenCXX/cxx11-thread-local.cpp
@@ -135,6 +135,16 @@
   return l();
 }
 
+struct PR19254 {
+  static thread_local int n;
+  int f();
+};
+// CHECK: define {{.*}} @_ZN7PR192541fEv(
+int PR19254::f() {
+  // CHECK: call void @_ZTHN7PR192541nE(
+  return this->n;
+}
+
 // CHECK: define {{.*}} @[[V_M_INIT:.*]]()
 // CHECK: load i8* bitcast (i64* @_ZGVN1VIiE1mE to i8*)
 // CHECK: %[[V_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0