diff --git a/lib/CodeGen/RegAlloc/LiveRange.h b/lib/CodeGen/RegAlloc/LiveRange.h
index 588b7b526e0..c3caa295717 100644
--- a/lib/CodeGen/RegAlloc/LiveRange.h
+++ b/lib/CodeGen/RegAlloc/LiveRange.h
@@ -101,7 +101,7 @@ public:
 
   inline void markForSpill() { mustSpill = true; }
 
-  inline bool isMarkedForSpill() { return mustSpill; }
+  inline bool isMarkedForSpill() const { return mustSpill; }
 
   inline void setSpillOffFromFP(int StackOffset) {
     assert(mustSpill && "This LR is not spilled");
diff --git a/lib/Target/SparcV9/RegAlloc/LiveRange.h b/lib/Target/SparcV9/RegAlloc/LiveRange.h
index 588b7b526e0..c3caa295717 100644
--- a/lib/Target/SparcV9/RegAlloc/LiveRange.h
+++ b/lib/Target/SparcV9/RegAlloc/LiveRange.h
@@ -101,7 +101,7 @@ public:
 
   inline void markForSpill() { mustSpill = true; }
 
-  inline bool isMarkedForSpill() { return mustSpill; }
+  inline bool isMarkedForSpill() const { return mustSpill; }
 
   inline void setSpillOffFromFP(int StackOffset) {
     assert(mustSpill && "This LR is not spilled");