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//===-- AlwaysInliner.h - Pass to inline "always_inline" functions --------===//

//

// 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

/// Provides passes to inlining "always_inline" functions.

///

//===----------------------------------------------------------------------===//

#ifndef LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H

#define LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H

#include "llvm/IR/PassManager.h"

namespace llvm {

class Module;

class Pass;

/// Inlines functions marked as "always_inline".

///

/// Note that this does not inline call sites marked as always_inline and does

/// not delete the functions even when all users are inlined. The normal

/// inliner should be used to handle call site inlining, this pass's goal is to

/// be the simplest possible pass to remove always_inline function definitions'

/// uses by inlining them. The \c GlobalDCE pass can be used to remove these

/// functions once all users are gone.

class AlwaysInlinerPass : public PassInfoMixin<AlwaysInlinerPass> {

  bool InsertLifetime;

public:

  AlwaysInlinerPass(bool InsertLifetime = true)

      : InsertLifetime(InsertLifetime) {}

  PreservedAnalyses run(Module &M, ModuleAnalysisManager &);

  static bool isRequired() { return true; }

};

/// Create a legacy pass manager instance of a pass to inline and remove

/// functions marked as "always_inline".

Pass *createAlwaysInlinerLegacyPass(bool InsertLifetime = true);

}

#endif // LLVM_TRANSFORMS_IPO_ALWAYSINLINER_H