//
// Notice that:
// * This pass has a habit of making definitions be dead. It is a good idea
-// to to run a DIE pass sometime after running this pass.
+// to run a DIE pass sometime after running this pass.
//
//===----------------------------------------------------------------------===//
// interfaces are used by the ConstantExpr::get* methods to automatically fold
// constants when possible.
//
-// These operators may return a null object if I don't know how to perform the
-// specified operation on the specified constant types.
+// These operators may return a null object if they don't know how to perform
+// the specified operation on the specified constant types.
//
//===----------------------------------------------------------------------===//