Implement CodeGen for C++11 thread_local, following the Itanium ABI specification as discussed on cxx-abi-dev.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@179858 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index 42be779..fdd3568 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -176,6 +176,7 @@
   EmitDeferred();
   EmitCXXGlobalInitFunc();
   EmitCXXGlobalDtorFunc();
+  EmitCXXThreadLocalInitFunc();
   if (ObjCRuntime)
     if (llvm::Function *ObjCInitFunction = ObjCRuntime->ModuleInitFunction())
       AddGlobalCtor(ObjCInitFunction);
@@ -1477,8 +1478,10 @@
         GV->setVisibility(GetLLVMVisibility(LV.getVisibility()));
     }
 
-    if (D->getTLSKind())
+    if (D->getTLSKind()) {
+      CXXThreadLocals.push_back(std::make_pair(D, GV));
       setTLSMode(GV, *D);
+    }
   }
 
   if (AddrSpace != Ty->getAddressSpace())