Enhance checking for null format string literal to take into account __null. Fixes <rdar://problem/8269537>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150260 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index a44633d5d7..be326880d5 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -1381,6 +1381,7 @@ bool Sema::SemaCheckStringLiteral(const Expr *E, Expr **Args,
                                  inFunctionCall);
   }
 
+  case Stmt::GNUNullExprClass:
   case Stmt::IntegerLiteralClass:
     // Technically -Wformat-nonliteral does not warn about this case.
     // The behavior of printf and friends in this case is implementation