diff --git a/llvm/include/llvm/Analysis/MustExecute.h b/llvm/include/llvm/Analysis/MustExecute.h
--- a/llvm/include/llvm/Analysis/MustExecute.h
+++ b/llvm/include/llvm/Analysis/MustExecute.h
@@ -469,7 +469,7 @@
   /// true if \p Pred holds in every instruction.
   bool checkForAllContext(const Instruction *PP,
                           const function_ref<bool(const Instruction *)> &Pred) {
-    for (auto EIt = begin(PP), EEnd = end(PP); EIt != EEnd; EIt++)
+    for (auto EIt = begin(PP), EEnd = end(PP); EIt != EEnd; ++EIt)
       if (!Pred(*EIt))
         return false;
     return true;