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+//===- Passes.h - Toy Passes Definition -----------------------------------===//
+//
+// Copyright 2019 The MLIR Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// =============================================================================
+//
+// This file exposes the entry points to create compiler passes for Toy.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef MLIR_TUTORIAL_TOY_PASSES_H
+#define MLIR_TUTORIAL_TOY_PASSES_H
+
+#include <memory>
+
+namespace mlir {
+class Pass;
+
+namespace toy {
+std::unique_ptr<Pass> createDeadFunctionEliminationPass();
+std::unique_ptr<Pass> createShapeInferencePass();
+
+/// Create a pass for lowering to operations in the `Affine` and `Std` dialects,
+/// for a subset of the Toy IR (e.g. matmul).
+std::unique_ptr<mlir::Pass> createLowerToAffinePass();
+
+/// Create a pass for lowering operations the remaining `Toy` operations, as
+/// well as `Affine` and `Std`, to the LLVM dialect for codegen.
+std::unique_ptr<mlir::Pass> createLowerToLLVMPass();
+
+} // end namespace toy
+} // end namespace mlir
+
+#endif // MLIR_TUTORIAL_TOY_PASSES_H