[llvm-commits] [llvm] r170968 - /llvm/trunk/lib/Support/YAMLTraits.cpp

[Richard Smith]

Author: rsmith
Date: Fri Dec 21 18:15:13 2012
New Revision: 170968

URL: http://llvm.org/viewvc/llvm-project?rev=170968&view=rev
Log:
Don't call back() on an empty SmallVector. Found by -fsanitize=enum!

Modified:
    llvm/trunk/lib/Support/YAMLTraits.cpp

Modified: llvm/trunk/lib/Support/YAMLTraits.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/YAMLTraits.cpp?rev=170968&r1=170967&r2=170968&view=diff
==============================================================================
--- llvm/trunk/lib/Support/YAMLTraits.cpp (original)
+++ llvm/trunk/lib/Support/YAMLTraits.cpp Fri Dec 21 18:15:13 2012
@@ -516,7 +516,7 @@
 
 void Output::outputUpToEndOfLine(StringRef s) {
   this->output(s);
-  if (StateStack.back() != inFlowSeq)
+  if (StateStack.empty() || StateStack.back() != inFlowSeq)
     NeedsNewLine = true;
 }