Add -ftls-model command-line flag.

This allows for setting the default TLS model. (PR9788)

llvm-svn: 159336

1 files changed, 4 insertions, 9 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index a742d846c19..d6ff50d5ad7 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -474,6 +474,10 @@ public:
   /// GlobalValue.
   void setGlobalVisibility(llvm::GlobalValue *GV, const NamedDecl *D) const;
 
+  /// setTLSMode - Set the TLS mode for the given LLVM GlobalVariable
+  /// for the thread-local variable declaration D.
+  void setTLSMode(llvm::GlobalVariable *GV, const VarDecl &D) const;
+
   /// TypeVisibilityKind - The kind of global variable that is passed to 
   /// setTypeVisibility
   enum TypeVisibilityKind {
@@ -498,15 +502,6 @@ public:
     llvm_unreachable("unknown visibility!");
   }
 
-  static llvm::GlobalVariable::ThreadLocalMode GetLLVMTLSModel(StringRef S) {
-    return llvm::StringSwitch<llvm::GlobalVariable::ThreadLocalMode>(S)
-        .Case("global-dynamic", llvm::GlobalVariable::GeneralDynamicTLSModel)
-        .Case("local-dynamic", llvm::GlobalVariable::LocalDynamicTLSModel)
-        .Case("initial-exec", llvm::GlobalVariable::InitialExecTLSModel)
-        .Case("local-exec", llvm::GlobalVariable::LocalExecTLSModel)
-        .Default(llvm::GlobalVariable::NotThreadLocal);
-  }
-
   llvm::Constant *GetAddrOfGlobal(GlobalDecl GD) {
     if (isa<CXXConstructorDecl>(GD.getDecl()))
       return GetAddrOfCXXConstructor(cast<CXXConstructorDecl>(GD.getDecl()),