diff --git a/clang/tools/driver/cc1as_main.cpp b/clang/tools/driver/cc1as_main.cpp
--- a/clang/tools/driver/cc1as_main.cpp
+++ b/clang/tools/driver/cc1as_main.cpp
@@ -389,6 +389,7 @@
   std::unique_ptr<MCObjectFileInfo> MOFI(new MCObjectFileInfo());
 
   MCContext Ctx(MAI.get(), MRI.get(), MOFI.get(), &SrcMgr, &MCOptions);
+  Ctx.setUseNamesOnTempLabels(false);
 
   bool PIC = false;
   if (Opts.RelocationModel == "static") {