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//===--- BackendUtil.h - LLVM Backend Utilities -----------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_FLANG_CODEGEN_BACKEND_UTIL_H
#define LLVM_FLANG_CODEGEN_BACKEND_UTIL_H

#include "flang/Basic/LLVM.h"

namespace llvm {
  class Module;
}

namespace flang {
  class DiagnosticsEngine;
  class CodeGenOptions;
  class TargetOptions;
  class LangOptions;
  
  enum BackendAction {
    Backend_EmitAssembly,  ///< Emit native assembly files
    Backend_EmitBC,        ///< Emit LLVM bitcode files
    Backend_EmitLL,        ///< Emit human-readable LLVM assembly
    Backend_EmitNothing,   ///< Don't emit anything (benchmarking mode)
    Backend_EmitMCNull,    ///< Run CodeGen, but don't emit anything
    Backend_EmitObj        ///< Emit native object files
  };

  void EmitBackendOutput(DiagnosticsEngine &Diags, const CodeGenOptions &CGOpts,
                        const TargetOptions &TOpts, const LangOptions &LOpts,
                        StringRef TDesc, llvm::Module *M, BackendAction Action,
                        raw_pwrite_stream *OS);
}

#endif