diff --git a/llvm/CMakeLists.txt b/llvm/CMakeLists.txt
--- a/llvm/CMakeLists.txt
+++ b/llvm/CMakeLists.txt
@@ -480,7 +480,7 @@
 
 # Define the default arguments to use with 'lit', and an option for the user to
 # override.
-set(LIT_ARGS_DEFAULT "-sv")
+set(LIT_ARGS_DEFAULT "-s -vv")
 if (MSVC_IDE OR XCODE)
   set(LIT_ARGS_DEFAULT "${LIT_ARGS_DEFAULT} --no-progress-bar")
 endif()