cpp11-migrate: Transforms collect timing data.

Using updated form of newFrontendActionFactory(), Transforms now automatically
measure, if requested, how long it takes to apply a MatchFinder to a source
file. Other per-transform overhead, e.g. applying replacements, is not
currently measured. This behaviour is disabled for now and soon will be
connected to a new command line arg.

llvm-svn: 182942

2 files changed, 4 insertions, 2 deletions

diff --git a/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.cpp b/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.cpp
index 573604a9c53..0f8b1a84f4b 100644
--- a/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.cpp
+++ b/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.cpp
@@ -47,7 +47,8 @@ int UseNullptrTransform::apply(const FileContentsByPath &InputStates,
 
   Finder.addMatcher(makeCastSequenceMatcher(), &Fixer);
 
-  if (int result = UseNullptrTool.run(newFrontendActionFactory(&Finder))) {
+  if (int result = UseNullptrTool.run(
+          newFrontendActionFactory(&Finder, /*Callbacks=*/ this))) {
     llvm::errs() << "Error encountered during translation.\n";
     return result;
   }
diff --git a/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.h b/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.h
index 02691f6e08b..49cdc45baa5 100644
--- a/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.h
+++ b/clang-tools-extra/cpp11-migrate/UseNullptr/UseNullptr.h
@@ -23,7 +23,8 @@
 /// C++11's nullptr keyword where possible.
 class UseNullptrTransform : public Transform {
 public:
-  UseNullptrTransform() : Transform("UseNullptr") {}
+  UseNullptrTransform(bool EnableTiming)
+      : Transform("UseNullptr", EnableTiming) {}
 
   /// \see Transform::run().
   virtual int apply(const FileContentsByPath &InputStates,