diff --git a/include/llvm/CodeGen/LiveIntervalAnalysis.h b/include/llvm/CodeGen/LiveIntervalAnalysis.h
index d8c921fce31..61c705e04d2 100644
--- a/include/llvm/CodeGen/LiveIntervalAnalysis.h
+++ b/include/llvm/CodeGen/LiveIntervalAnalysis.h
@@ -181,12 +181,6 @@ namespace llvm {
     void pruneValue(LiveRange &LR, SlotIndex Kill,
                     SmallVectorImpl<SlotIndex> *EndPoints);
 
-    /// Subregister aware variant of pruneValue(LiveRange &LR, SlotIndex Kill,
-    /// SmallVectorImpl<SlotIndex> &EndPoints). Prunes the value in the main
-    /// range and all sub ranges.
-    void pruneValue(LiveInterval &LI, SlotIndex Kill,
-                    SmallVectorImpl<SlotIndex> *EndPoints);
-
     SlotIndexes *getSlotIndexes() const {
       return Indexes;
     }
diff --git a/lib/CodeGen/LiveIntervalAnalysis.cpp b/lib/CodeGen/LiveIntervalAnalysis.cpp
index 56f38b6407d..36aeaa176a2 100644
--- a/lib/CodeGen/LiveIntervalAnalysis.cpp
+++ b/lib/CodeGen/LiveIntervalAnalysis.cpp
@@ -609,15 +609,6 @@ void LiveIntervals::pruneValue(LiveRange &LR, SlotIndex Kill,
   }
 }
 
-void LiveIntervals::pruneValue(LiveInterval &LI, SlotIndex Kill,
-                               SmallVectorImpl<SlotIndex> *EndPoints) {
-  pruneValue((LiveRange&)LI, Kill, EndPoints);
-
-  for (LiveInterval::SubRange &SR : LI.subranges()) {
-    pruneValue(SR, Kill, nullptr);
-  }
-}
-
 //===----------------------------------------------------------------------===//
 // Register allocator hooks.
 //