Index: lib/IR/AsmWriter.cpp
===================================================================
--- lib/IR/AsmWriter.cpp
+++ lib/IR/AsmWriter.cpp
@@ -1968,6 +1968,18 @@
   Out << ")";
 }
 
+static void writeDILabel(raw_ostream &Out, const DILabel *N,
+                         TypePrinting *TypePrinter,
+                         SlotTracker *Machine, const Module *Context) {
+  Out << "!DILabel(";
+  MDFieldPrinter Printer(Out, TypePrinter, Machine, Context);
+  Printer.printMetadata("scope", N->getRawScope(), /* ShouldSkipNull */ false);
+  Printer.printString("name", N->getName());
+  Printer.printMetadata("file", N->getRawFile());
+  Printer.printInt("line", N->getLine());
+  Out << ")";
+}
+
 static void writeDIExpression(raw_ostream &Out, const DIExpression *N,
                               TypePrinting *TypePrinter, SlotTracker *Machine,
                               const Module *Context) {