Use array_lengthof.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131008 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index c6be223..f510fb5 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -225,10 +225,8 @@
     "vfork",
     "getcontext"
   };
-  static const size_t NumReturnsTwiceFns = sizeof(ReturnsTwiceFns) /
-                                           sizeof(const char *);
 
-  for (unsigned I = 0; I < NumReturnsTwiceFns; ++I)
+  for (unsigned I = 0; I < array_lengthof(ReturnsTwiceFns); ++I)
     if (const Function *Callee = M->getFunction(ReturnsTwiceFns[I])) {
       if (!Callee->use_empty())
         for (Value::const_use_iterator