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git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60146 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/BasicConstraintManager.cpp b/lib/Analysis/BasicConstraintManager.cpp
index 6f62c4ba772b158d41a3e96d533fb4c53e034f68..7bed3931bf0b2973b89ba7246ea3b1a8f4bcfa63 100644 (file)
--- a/lib/Analysis/BasicConstraintManager.cpp
+++ b/lib/Analysis/BasicConstraintManager.cpp
@@ -448,6 +448,8 @@ bool BasicConstraintManager::isEqual(const GRState* St, SymbolID sym,
   return T ? **T == V : false;
 }
 
+/// Scan all symbols referenced by the constraints. If the symbol is not alive
+/// as marked in LSymbols, mark it as dead in DSymbols.
 const GRState* BasicConstraintManager::RemoveDeadBindings(const GRState* St,
                                         StoreManager::LiveSymbolsTy& LSymbols,
                                         StoreManager::DeadSymbolsTy& DSymbols) {