From: Douglas Gregor <dgregor@apple.com>
Date: Tue, 18 Dec 2012 23:02:07 +0000 (+0000)
Subject: Be defensive when printing module import locations; the diagnostic printer needs... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=813bc7faa74bda8162db3dede57e07bfe764e86e;p=clang

Be defensive when printing module import locations; the diagnostic printer needs to be robust

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@170466 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Frontend/TextDiagnostic.cpp b/lib/Frontend/TextDiagnostic.cpp
index 651ddd66b4..aba90f6046 100644
--- a/lib/Frontend/TextDiagnostic.cpp
+++ b/lib/Frontend/TextDiagnostic.cpp
@@ -898,7 +898,7 @@ void TextDiagnostic::emitBuildingModuleLocation(SourceLocation Loc,
                                                 PresumedLoc PLoc,
                                                 StringRef ModuleName,
                                                 const SourceManager &SM) {
-  if (DiagOpts->ShowLocation)
+  if (DiagOpts->ShowLocation && PLoc.getFilename())
     OS << "While building module '" << ModuleName << "' imported from "
       << PLoc.getFilename() << ':' << PLoc.getLine() << ":\n";
   else