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/CGCXXABI.h b/lib/CodeGen/CGCXXABI.h
index b736d94..1e4da63 100644
--- a/lib/CodeGen/CGCXXABI.h
+++ b/lib/CodeGen/CGCXXABI.h
@@ -353,6 +353,25 @@
/// \param addr - a pointer to pass to the destructor function.
virtual void registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D,
llvm::Constant *dtor, llvm::Constant *addr);
+
+ /*************************** thread_local initialization ********************/
+
+ /// Emits ABI-required functions necessary to initialize thread_local
+ /// variables in this translation unit.
+ ///
+ /// \param Decls The thread_local declarations in this translation unit.
+ /// \param InitFunc If this translation unit contains any non-constant
+ /// initialization or non-trivial destruction for thread_local
+ /// variables, a function to perform the initialization. Otherwise, 0.
+ virtual void EmitThreadLocalInitFuncs(
+ llvm::ArrayRef<std::pair<const VarDecl *, llvm::GlobalVariable *> > Decls,
+ llvm::Function *InitFunc);
+
+ /// Emit a reference to a non-local thread_local variable (including
+ /// triggering the initialization of all thread_local variables in its
+ /// translation unit).
+ virtual LValue EmitThreadLocalDeclRefExpr(CodeGenFunction &CGF,
+ const DeclRefExpr *DRE);
};
// Create an instance of a C++ ABI class: