1 files changed, 5 insertions, 5 deletions
diff --git a/lld/include/lld/Common/Timer.h b/lld/include/lld/Common/Timer.h
index 4a298b04a30b..95e811a2f9f0 100644
--- a/lld/include/lld/Common/Timer.h
+++ b/lld/include/lld/Common/Timer.h
@@ -12,6 +12,7 @@
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/ADT/StringRef.h"
 #include <assert.h>
+#include <atomic>
 #include <chrono>
 #include <map>
 #include <memory>
@@ -27,6 +28,8 @@ struct ScopedTimer {
 
   void stop();
 
+  std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
+
   Timer *t = nullptr;
 };
 
@@ -36,8 +39,7 @@ public:
 
   static Timer &root();
 
-  void start();
-  void stop();
+  void addToTotal(std::chrono::nanoseconds time) { total += time.count(); }
   void print();
 
   double millis() const;
@@ -46,11 +48,9 @@ private:
   explicit Timer(llvm::StringRef name);
   void print(int depth, double totalDuration, bool recurse = true) const;
 
-  std::chrono::time_point<std::chrono::high_resolution_clock> startTime;
-  std::chrono::nanoseconds total;
+  std::atomic<std::chrono::nanoseconds::rep> total;
   std::vector<Timer *> children;
   std::string name;
-  Timer *parent;
 };
 
 } // namespace lld