1 files changed, 6 insertions, 0 deletions
diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index bd3604c429..bb547c3519 100644
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -347,6 +347,12 @@ namespace llvm {
       return *LI;
     }
 
+    /// getCachedRegUnit - Return the live range for Unit if it has already
+    /// been computed, or NULL if it hasn't been computed yet.
+    LiveInterval *getCachedRegUnit(unsigned Unit) {
+      return RegUnitIntervals[Unit];
+    }
+
     /// trackingRegUnits - Does LiveIntervals curently track register units?
     /// This function will be removed when regunit tracking is permanently
     /// enabled.