From 09906a6e87eb256f6cc8e0a37bddbb094ebea30e Mon Sep 17 00:00:00 2001
From: Adrian Prantl <aprantl@apple.com>
Date: Mon, 22 Aug 2016 22:38:16 +0000
Subject: Add comments. NFC

llvm-svn: 279490
---
 clang/lib/CodeGen/CGDebugInfo.cpp | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'clang/lib/CodeGen/CGDebugInfo.cpp')

diff --git a/clang/lib/CodeGen/CGDebugInfo.cpp b/clang/lib/CodeGen/CGDebugInfo.cpp
index af0cd02ed2f..d515e1a31f7 100644
--- a/clang/lib/CodeGen/CGDebugInfo.cpp
+++ b/clang/lib/CodeGen/CGDebugInfo.cpp
@@ -1650,8 +1650,10 @@ static bool hasExplicitMemberDefinition(CXXRecordDecl::method_iterator I,
 
 /// Does a type definition exist in an imported clang module?
 static bool isDefinedInClangModule(const RecordDecl *RD) {
+  // Only definitions that where imported from an AST file come from a module.
   if (!RD || !RD->isFromASTFile())
     return false;
+  // Anonymous entities cannot be addressed. Treat them as not from module.
   if (!RD->isExternallyVisible() && RD->getName().empty())
     return false;
   if (auto *CXXDecl = dyn_cast<CXXRecordDecl>(RD)) {
-- 
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