--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/include/llvm/Transforms/Scalar/Scalarizer.h	Wed Aug 14 19:46:37 2019 +0900
@@ -0,0 +1,34 @@
+//===- Scalarizer.h --- Scalarize vector operations -----------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+/// \file
+/// This pass converts vector operations into scalar operations, in order
+/// to expose optimization opportunities on the individual scalar operations.
+/// It is mainly intended for targets that do not have vector units, but it
+/// may also be useful for revectorizing code to different vector widths.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_TRANSFORMS_SCALAR_SCALARIZER_H
+#define LLVM_TRANSFORMS_SCALAR_SCALARIZER_H
+
+#include "llvm/IR/PassManager.h"
+
+namespace llvm {
+
+class ScalarizerPass : public PassInfoMixin<ScalarizerPass> {
+public:
+  PreservedAnalyses run(Function &F, FunctionAnalysisManager &AM);
+};
+
+/// Create a legacy pass manager instance of the Scalarizer pass
+FunctionPass *createScalarizerPass();
+
+}
+
+#endif /* LLVM_TRANSFORMS_SCALAR_SCALARIZER_H */