diff --git a/llvm/tools/llvm-ar/llvm-ar.cpp b/llvm/tools/llvm-ar/llvm-ar.cpp
--- a/llvm/tools/llvm-ar/llvm-ar.cpp
+++ b/llvm/tools/llvm-ar/llvm-ar.cpp
@@ -602,7 +602,7 @@
   if (Operation == Extract && OldArchive->isThin())
     fail("extracting from a thin archive is not supported");
 
-  bool Filter = !Members.empty();
+  bool Filter = Members.size() != 0;
   StringMap<int> MemberCount;
   {
     Error Err = Error::success();