r197906 - clang-format: Fix invalid write discovered by ASAN.

[Daniel Jasper]

Author: djasper
Date: Mon Dec 23 05:25:40 2013
New Revision: 197906

URL: http://llvm.org/viewvc/llvm-project?rev=197906&view=rev
Log:
clang-format: Fix invalid write discovered by ASAN.

Introduced in r197900.

Modified:
    cfe/trunk/lib/Format/ContinuationIndenter.cpp

Modified: cfe/trunk/lib/Format/ContinuationIndenter.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Format/ContinuationIndenter.cpp?rev=197906&r1=197905&r2=197906&view=diff
==============================================================================
--- cfe/trunk/lib/Format/ContinuationIndenter.cpp (original)
+++ cfe/trunk/lib/Format/ContinuationIndenter.cpp Mon Dec 23 05:25:40 2013
@@ -421,7 +421,8 @@ unsigned ContinuationIndenter::addTokenO
     //                        }];
     // Thus, we set LastSpace of the next higher ParenLevel, to which we move
     // when we consume all of the "}"'s FakeRParens at the "{".
-    State.Stack[State.Stack.size() - 2].LastSpace = ContinuationIndent;
+    if (State.Stack.size() > 1)
+      State.Stack[State.Stack.size() - 2].LastSpace = ContinuationIndent;
   } else if (Current.Type == TT_CtorInitializerColon) {
     State.Column = State.FirstIndent + Style.ConstructorInitializerIndentWidth;
   } else if (Current.Type == TT_CtorInitializerComma) {