Integrated-As: Support -Wa,-L when using the integrated assembler.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128433 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/BackendUtil.cpp b/lib/CodeGen/BackendUtil.cpp
index ce64dc7..6358b9f 100644
--- a/lib/CodeGen/BackendUtil.cpp
+++ b/lib/CodeGen/BackendUtil.cpp
@@ -268,6 +268,8 @@
 
   if (CodeGenOpts.RelaxAll)
     TM->setMCRelaxAll(true);
+  if (CodeGenOpts.SaveTempLabels)
+    TM->setMCSaveTempLabels(true);
 
   // Create the code generator passes.
   PassManager *PM = getCodeGenPasses();