diff --git a/llvm/include/llvm/Transforms/Scalar/LoopUnrollPass.h b/llvm/include/llvm/Transforms/Scalar/LoopUnrollPass.h
--- a/llvm/include/llvm/Transforms/Scalar/LoopUnrollPass.h
+++ b/llvm/include/llvm/Transforms/Scalar/LoopUnrollPass.h
@@ -44,6 +44,7 @@
 
   PreservedAnalyses run(Loop &L, LoopAnalysisManager &AM,
                         LoopStandardAnalysisResults &AR, LPMUpdater &U);
+  static bool isRequired() { return true; }
 };
 
 /// A set of parameters used to control various transforms performed by the
diff --git a/llvm/test/Transforms/LoopUnroll/FullUnroll.ll b/llvm/test/Transforms/LoopUnroll/FullUnroll.ll
--- a/llvm/test/Transforms/LoopUnroll/FullUnroll.ll
+++ b/llvm/test/Transforms/LoopUnroll/FullUnroll.ll
@@ -1,4 +1,5 @@
 ; RUN: opt -passes='loop-unroll-full' -disable-verify --mtriple x86_64-pc-linux-gnu -S -o - %s | FileCheck %s
+; RUN: opt -enable-npm-optnone -passes='loop-unroll-full' -disable-verify --mtriple x86_64-pc-linux-gnu -S -o - %s | FileCheck %s
 
 ; This checks that the loop full unroller will fire in the new pass manager
 ; when forced via #pragma in the source (or annotation in the code).