1 files changed, 3 insertions, 0 deletions
diff --git a/lib/CodeGen/RegAllocBase.h b/lib/CodeGen/RegAllocBase.h
index bbd79cd..659b8f5 100644
--- a/lib/CodeGen/RegAllocBase.h
+++ b/lib/CodeGen/RegAllocBase.h
@@ -96,6 +96,9 @@ protected:
   // Use this group name for NamedRegionTimer.
   static const char TimerGroupName[];
 
+  /// Method called when the allocator is about to remove a LiveInterval.
+  virtual void aboutToRemoveInterval(LiveInterval &LI) {}
+
 public:
   /// VerifyEnabled - True when -verify-regalloc is given.
   static bool VerifyEnabled;