diff --git a/include/llvm/Instructions.h b/include/llvm/Instructions.h
index 6fa434cccfa..9a20a2fd0c2 100644
--- a/include/llvm/Instructions.h
+++ b/include/llvm/Instructions.h
@@ -2398,7 +2398,7 @@ public:
 
   /// @brief Determine if the call does not access memory.
   bool doesNotAccessMemory() const {
-    return paramHasAttr(0, Attribute::ReadNone);
+    return paramHasAttr(~0, Attribute::ReadNone);
   }
   void setDoesNotAccessMemory(bool NotAccessMemory = true) {
     if (NotAccessMemory) addAttribute(~0, Attribute::ReadNone);