+ // Collect arguments for current function.
+ assert(LScopes.isCurrentFunctionScope(Scope));
+ DIE *ObjectPointer = nullptr;
+ for (DbgVariable *ArgDV : CurrentFnArguments)
+ if (ArgDV)
+ ScopeDIE.addChild(
+ constructVariableDIE(TheCU, *ArgDV, *Scope, ObjectPointer));
+
+ // If this is a variadic function, add an unspecified parameter.
+ DITypeArray FnArgs = Sub.getType().getTypeArray();
+ // If we have a single element of null, it is a function that returns void.
+ // If we have more than one elements and the last one is null, it is a
+ // variadic function.
+ if (FnArgs.getNumElements() > 1 &&
+ !FnArgs.getElement(FnArgs.getNumElements() - 1))
+ ScopeDIE.addChild(make_unique<DIE>(dwarf::DW_TAG_unspecified_parameters));
+
+ // Collect lexical scope children first.
+ // ObjectPointer might be a local (non-argument) local variable if it's a
+ // block's synthetic this pointer.
+ if (DIE *BlockObjPtr = createAndAddScopeChildren(TheCU, Scope, ScopeDIE)) {
+ assert(!ObjectPointer && "multiple object pointers can't be described");
+ ObjectPointer = BlockObjPtr;
+ }
+
+ if (ObjectPointer)
+ TheCU.addDIEEntry(ScopeDIE, dwarf::DW_AT_object_pointer, *ObjectPointer);