[llvm] r274309 - [pdb] Avoid reporting an error when the module symbol stream is empty

[Reid Kleckner via llvm-commits]

Author: rnk
Date: Thu Jun 30 19:37:49 2016
New Revision: 274309

URL: http://llvm.org/viewvc/llvm-project?rev=274309&view=rev
Log:
[pdb] Avoid reporting an error when the module symbol stream is empty

Modified:
    llvm/trunk/lib/DebugInfo/PDB/Raw/ModStream.cpp

Modified: llvm/trunk/lib/DebugInfo/PDB/Raw/ModStream.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/PDB/Raw/ModStream.cpp?rev=274309&r1=274308&r2=274309&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/PDB/Raw/ModStream.cpp (original)
+++ llvm/trunk/lib/DebugInfo/PDB/Raw/ModStream.cpp Thu Jun 30 19:37:49 2016
@@ -67,6 +67,9 @@ Error ModStream::reload() {
 
 iterator_range<codeview::CVSymbolArray::Iterator>
 ModStream::symbols(bool *HadError) const {
+  // It's OK if the stream is empty.
+  if (SymbolsSubstream.getUnderlyingStream().getLength() == 0)
+    return llvm::make_range(SymbolsSubstream.end(), SymbolsSubstream.end());
   return llvm::make_range(SymbolsSubstream.begin(HadError),
                           SymbolsSubstream.end());
 }