Implement __atomic_fetch_nand and __atomic_nand_fetch to complete our set of
GNU __atomic builtins.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154659 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Expr.cpp b/lib/AST/Expr.cpp
index eb185b2..868109e 100644
--- a/lib/AST/Expr.cpp
+++ b/lib/AST/Expr.cpp
@@ -3879,11 +3879,13 @@
   case AO__atomic_fetch_and:
   case AO__atomic_fetch_or:
   case AO__atomic_fetch_xor:
+  case AO__atomic_fetch_nand:
   case AO__atomic_add_fetch:
   case AO__atomic_sub_fetch:
   case AO__atomic_and_fetch:
   case AO__atomic_or_fetch:
   case AO__atomic_xor_fetch:
+  case AO__atomic_nand_fetch:
     return 3;
 
   case AO__atomic_exchange: