diff --git a/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp b/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
--- a/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
+++ b/llvm/tools/llvm-reduce/deltas/ReduceArguments.cpp
@@ -7,7 +7,7 @@
 //===----------------------------------------------------------------------===//
 //
 // This file implements a function which calls the Generic Delta pass in order
-// to reduce uninteresting Arguments from defined functions.
+// to reduce uninteresting Arguments from declared and defined functions.
 //
 //===----------------------------------------------------------------------===//
 
@@ -109,8 +109,8 @@
   }
 }
 
-/// Counts the amount of arguments in non-declaration functions and prints their
-/// respective name, index, and parent function name
+/// Counts the amount of arguments in functions and prints their respective
+/// name, index, and parent function name
 static int countArguments(Module *Program) {
   // TODO: Silence index with --quiet flag
   outs() << "----------------------------\n";