/// Pointer is either null or dereferenceable.
def DereferenceableOrNull : EnumAttr<"dereferenceable_or_null">;
+/// Function may only access memory that is inaccessible from IR.
+def InaccessibleMemOnly : EnumAttr<"inaccessiblememonly">;
+
+/// Function may only access memory that is either inaccessible from the IR,
+/// or pointed to by its pointer arguments.
+def InaccessibleMemOrArgMemOnly : EnumAttr<"inaccessiblemem_or_argmemonly">;
+
/// Pass structure in an alloca.
def InAlloca : EnumAttr<"inalloca">;