don't print codegen time unless -ftime-report was passed.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64928 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/Backend.cpp b/Driver/Backend.cpp
index a751041..8cffae0 100644
--- a/Driver/Backend.cpp
+++ b/Driver/Backend.cpp
@@ -355,7 +355,9 @@
   if (!TheModule || !TheTargetData)
     return;
   
-  TimeRegion Region(CodeGenerationTime);
+  
+  
+  TimeRegion Region(CompileOpts.TimePasses ? &CodeGenerationTime : 0);
 
   // Make sure IR generation is happy with the module. This is
   // released by the module provider.