src/hotspot/share/utilities/ticks.inline.hpp

rev 49827 : imported patch 6672778-refactoring
rev 49829 : imported patch 6672778-inconsistent-time-fixes

@@ -30,10 +30,15 @@
 inline Tickspan operator+(Tickspan lhs, const Tickspan& rhs) {
   lhs += rhs;
   return lhs;
 }
 
+inline Tickspan operator-(Tickspan lhs, const Tickspan& rhs) {
+  lhs -= rhs;
+  return lhs;
+}
+
 inline bool operator==(const Tickspan& lhs, const Tickspan& rhs) {
   return lhs.value() == rhs.value();
 }
 
 inline bool operator!=(const Tickspan& lhs, const Tickspan& rhs) {