From 64b16171df1baf99a89a0f7c7654dba04443788a Mon Sep 17 00:00:00 2001
From: Reid Kleckner <rnk@google.com>
Date: Fri, 1 Jul 2016 00:37:49 +0000
Subject: [pdb] Avoid reporting an error when the module symbol stream is empty

llvm-svn: 274309
---
 llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp')

diff --git a/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp b/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
index 89673d247f2..e1c5e20067a 100644
--- a/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
+++ b/llvm/lib/DebugInfo/PDB/Raw/ModStream.cpp
@@ -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());
 }
-- 
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