C++: Add support for -fno-use-cxa-atexit.

- So much typing, so little gain...

Also, rename the __cxx_global_initialization function just to match llvm-gcc.

llvm-svn: 99039

clang/lib/CodeGen/CodeGenModule.cpp

@@ -81,6 +81,7 @@ void CodeGenModule::createObjCRuntime() {
 void CodeGenModule::Release() {
   EmitDeferred();
   EmitCXXGlobalInitFunc();
+  EmitCXXGlobalDtorFunc();
   if (Runtime)
     if (llvm::Function *ObjCInitFunction = Runtime->ModuleInitFunction())
       AddGlobalCtor(ObjCInitFunction);