commit 813bc7faa74bda8162db3dede57e07bfe764e86e
author Douglas Gregor <dgregor@apple.com> Tue Dec 18 23:02:07 2012 +0000
committer Douglas Gregor <dgregor@apple.com> Tue Dec 18 23:02:07 2012 +0000
tree a6d88ce5f9da78e481cd04e79575a5a17635d75c
parent e77372ac818cf202571dcbf8ab656c8f47ba3423

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

lib/Frontend/TextDiagnostic.cpp

diff --git a/lib/Frontend/TextDiagnostic.cpp b/lib/Frontend/TextDiagnostic.cpp
index 651ddd6..aba90f6 100644
--- a/lib/Frontend/TextDiagnostic.cpp
+++ b/lib/Frontend/TextDiagnostic.cpp
@@ -898,7 +898,7 @@
                                                 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