diff --git a/lib/CodeGen/CGDecl.cpp b/lib/CodeGen/CGDecl.cpp
index 5375c5e..8865399 100644
--- a/lib/CodeGen/CGDecl.cpp
+++ b/lib/CodeGen/CGDecl.cpp
@@ -198,7 +198,7 @@
   if (Linkage != llvm::GlobalValue::InternalLinkage)
     GV->setVisibility(CurFn->getVisibility());
 
-  if (D.isThreadSpecified())
+  if (D.getTLSKind())
     CGM.setTLSMode(GV, D);
 
   return GV;
diff --git a/lib/CodeGen/CGDeclCXX.cpp b/lib/CodeGen/CGDeclCXX.cpp
index 0448d31..609f6aa 100644
--- a/lib/CodeGen/CGDeclCXX.cpp
+++ b/lib/CodeGen/CGDeclCXX.cpp
@@ -39,7 +39,7 @@
     CodeGenModule &CGM = CGF.CGM;
     if (lv.isObjCStrong())
       CGM.getObjCRuntime().EmitObjCGlobalAssign(CGF, CGF.EmitScalarExpr(Init),
-                                                DeclPtr, D.isThreadSpecified());
+                                                DeclPtr, D.getTLSKind());
     else if (lv.isObjCWeak())
       CGM.getObjCRuntime().EmitObjCWeakAssign(CGF, CGF.EmitScalarExpr(Init),
                                               DeclPtr);
@@ -218,6 +218,9 @@
               "this initialization requires a guard variable, which "
               "the kernel does not support");
 
+  if (D.getTLSKind())
+    CGM.ErrorUnsupported(D.getInit(), "dynamic TLS initialization");
+
   CGM.getCXXABI().EmitGuardedInit(*this, D, DeclPtr, PerformInit);
 }
 
@@ -254,6 +257,9 @@
 CodeGenModule::EmitCXXGlobalVarDeclInitFunc(const VarDecl *D,
                                             llvm::GlobalVariable *Addr,
                                             bool PerformInit) {
+  if (D->getTLSKind())
+    ErrorUnsupported(D->getInit(), "dynamic TLS initialization");
+
   llvm::FunctionType *FTy = llvm::FunctionType::get(VoidTy, false);
 
   // Create a variable initialization function.
diff --git a/lib/CodeGen/CGExpr.cpp b/lib/CodeGen/CGExpr.cpp
index 4d72dc1..c515508 100644
--- a/lib/CodeGen/CGExpr.cpp
+++ b/lib/CodeGen/CGExpr.cpp
@@ -1667,7 +1667,7 @@
     if (const VarDecl *VD = dyn_cast<VarDecl>(Exp->getDecl())) {
       if (VD->hasGlobalStorage()) {
         LV.setGlobalObjCRef(true);
-        LV.setThreadLocalRef(VD->isThreadSpecified());
+        LV.setThreadLocalRef(VD->getTLSKind() != VarDecl::TLS_None);
       }
     }
     LV.setObjCArray(E->getType()->isArrayType());
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index aacabc7..20532d6 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -333,7 +333,7 @@
 
 void CodeGenModule::setTLSMode(llvm::GlobalVariable *GV,
                                const VarDecl &D) const {
-  assert(D.isThreadSpecified() && "setting TLS mode on non-TLS var!");
+  assert(D.getTLSKind() && "setting TLS mode on non-TLS var!");
 
   llvm::GlobalVariable::ThreadLocalMode TLM;
   TLM = GetLLVMTLSModel(CodeGenOpts.getDefaultTLSModel());
@@ -1485,7 +1485,7 @@
         GV->setVisibility(GetLLVMVisibility(LV.getVisibility()));
     }
 
-    if (D->isThreadSpecified())
+    if (D->getTLSKind())
       setTLSMode(GV, *D);
   }
 
@@ -1915,7 +1915,7 @@
            ((!CodeGenOpts.NoCommon && !D->getAttr<NoCommonAttr>()) ||
              D->getAttr<CommonAttr>()) &&
            !D->hasExternalStorage() && !D->getInit() &&
-           !D->getAttr<SectionAttr>() && !D->isThreadSpecified() &&
+           !D->getAttr<SectionAttr>() && !D->getTLSKind() &&
            !D->getAttr<WeakImportAttr>()) {
     // Thread local vars aren't considered common linkage.
     return llvm::GlobalVariable::CommonLinkage;