Added FIXME.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@54568 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/CheckDeadStores.cpp b/lib/Analysis/CheckDeadStores.cpp
index 9d9e68d..73cb3f7 100644
--- a/lib/Analysis/CheckDeadStores.cpp
+++ b/lib/Analysis/CheckDeadStores.cpp
@@ -133,6 +133,7 @@
           if (VD->getType()->isPointerType()) {
             if (IntegerLiteral* L =
                   dyn_cast<IntegerLiteral>(B->getRHS()->IgnoreParenCasts()))
+              // FIXME: Probably should have an Expr::isNullPointerConstant.              
               if (L->getValue() == 0)
                 return;
           }