diff --git a/llvm/include/llvm/Analysis/MemoryBuiltins.h b/llvm/include/llvm/Analysis/MemoryBuiltins.h
index 493a99a4b11e..c49cb8878340 100644
--- a/llvm/include/llvm/Analysis/MemoryBuiltins.h
+++ b/llvm/include/llvm/Analysis/MemoryBuiltins.h
@@ -159,15 +159,15 @@ public:
 
   SizeOffsetType compute(Value *V);
 
-  bool knownSize(SizeOffsetType &SizeOffset) {
+  static bool knownSize(const SizeOffsetType &SizeOffset) {
     return SizeOffset.first.getBitWidth() > 1;
   }
 
-  bool knownOffset(SizeOffsetType &SizeOffset) {
+  static bool knownOffset(const SizeOffsetType &SizeOffset) {
     return SizeOffset.second.getBitWidth() > 1;
   }
 
-  bool bothKnown(SizeOffsetType &SizeOffset) {
+  static bool bothKnown(const SizeOffsetType &SizeOffset) {
     return knownSize(SizeOffset) && knownOffset(SizeOffset);
   }