commit dfc9430bc7536c9f4599d586afce43606337dedb
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 a762a184eec1010640ce67172e08d5ccfa1f5ad5
parent 00f6c7754b3611fc0bbfe9e0f70de5df1a1af3ba

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

llvm-svn: 170466

clang/lib/Frontend/TextDiagnostic.cpp

diff --git a/clang/lib/Frontend/TextDiagnostic.cpp b/clang/lib/Frontend/TextDiagnostic.cpp
index 651ddd6..aba90f6 100644
--- a/clang/lib/Frontend/TextDiagnostic.cpp
+++ b/clang/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