//===--- Hexagon.h - Hexagon ToolChain Implementations ----------*- C++ -*-===//

//

// 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

//

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

#ifndef LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H

#define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H

#include "Linux.h"

#include "clang/Driver/Tool.h"

#include "clang/Driver/ToolChain.h"

namespace clang {

namespace driver {

namespace tools {

namespace hexagon {

// For Hexagon, we do not need to instantiate tools for PreProcess, PreCompile

// and Compile.

// We simply use "clang -cc1" for those actions.

class LLVM_LIBRARY_VISIBILITY Assembler : public Tool {

public:

  Assembler(const ToolChain &TC)

      : Tool("hexagon::Assembler", "hexagon-as", TC) {}

  bool hasIntegratedCPP() const override { return false; }

  void RenderExtraToolArgs(const JobAction &JA,

                           llvm::opt::ArgStringList &CmdArgs) const;

  void ConstructJob(Compilation &C, const JobAction &JA,

                    const InputInfo &Output, const InputInfoList &Inputs,

                    const llvm::opt::ArgList &TCArgs,

                    const char *LinkingOutput) const override;

};

class LLVM_LIBRARY_VISIBILITY Linker : public Tool {

public:

  Linker(const ToolChain &TC) : Tool("hexagon::Linker", "hexagon-ld", TC) {}

  bool hasIntegratedCPP() const override { return false; }

  bool isLinkJob() const override { return true; }

  virtual void RenderExtraToolArgs(const JobAction &JA,

                                   llvm::opt::ArgStringList &CmdArgs) const;

  void ConstructJob(Compilation &C, const JobAction &JA,

                    const InputInfo &Output, const InputInfoList &Inputs,

                    const llvm::opt::ArgList &TCArgs,

                    const char *LinkingOutput) const override;

};

void getHexagonTargetFeatures(const Driver &D, const llvm::opt::ArgList &Args,

                              std::vector<StringRef> &Features);

} // end namespace hexagon.

} // end namespace tools

namespace toolchains {

class LLVM_LIBRARY_VISIBILITY HexagonToolChain : public Linux {

protected:

  GCCVersion GCCLibAndIncVersion;

  Tool *buildAssembler() const override;

  Tool *buildLinker() const override;

  unsigned getOptimizationLevel(const llvm::opt::ArgList &DriverArgs) const;

public:

  HexagonToolChain(const Driver &D, const llvm::Triple &Triple,

                   const llvm::opt::ArgList &Args);

  ~HexagonToolChain() override;

  void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,

                             llvm::opt::ArgStringList &CC1Args,

                             Action::OffloadKind DeviceOffloadKind) const override;

  void

  AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,

                            llvm::opt::ArgStringList &CC1Args) const override;

  void addLibStdCxxIncludePaths(

      const llvm::opt::ArgList &DriverArgs,

      llvm::opt::ArgStringList &CC1Args) const override;

  void addLibCxxIncludePaths(const llvm::opt::ArgList &DriverArgs,

                             llvm::opt::ArgStringList &CC1Args) const override;

  const char *getDefaultLinker() const override {

    return getTriple().isMusl() ? 
"ld.lld"12
 : "hexagon-link";

  }

  CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override;

  void AddCXXStdlibLibArgs(const llvm::opt::ArgList &Args,

                           llvm::opt::ArgStringList &CmdArgs) const override;

  StringRef GetGCCLibAndIncVersion() const { return GCCLibAndIncVersion.Text; }

  bool IsIntegratedAssemblerDefault() const override {

    return true;

  }

  std::string getHexagonTargetDir(

      const std::string &InstalledDir,

      const SmallVectorImpl<std::string> &PrefixDirs) const;

  void getHexagonLibraryPaths(const llvm::opt::ArgList &Args,

      ToolChain::path_list &LibPaths) const;

  static bool isAutoHVXEnabled(const llvm::opt::ArgList &Args);

  static const StringRef GetDefaultCPU();

  static const StringRef GetTargetCPUVersion(const llvm::opt::ArgList &Args);

  static Optional<unsigned> getSmallDataThreshold(

      const llvm::opt::ArgList &Args);

};

} // end namespace toolchains

} // end namespace driver

} // end namespace clang

#endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HEXAGON_H