text: //===--- HIP.h - HIP 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_HIP_H
  #define LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HIP_H
  
  #include "clang/Driver/ToolChain.h"
  #include "clang/Driver/Tool.h"
  #include "AMDGPU.h"
  
  namespace clang {
  namespace driver {
  
  namespace tools {
  
  namespace AMDGCN {
    // Construct command for creating HIP fatbin.
    void constructHIPFatbinCommand(Compilation &C, const JobAction &JA,
                    StringRef OutputFileName, const InputInfoList &Inputs,
                    const llvm::opt::ArgList &TCArgs, const Tool& T);
  
  // Runs llvm-link/opt/llc/lld, which links multiple LLVM bitcode, together with
  // device library, then compiles it to ISA in a shared object.
  class LLVM_LIBRARY_VISIBILITY Linker : public Tool {
  public:
    Linker(const ToolChain &TC) : Tool("AMDGCN::Linker", "amdgcn-link", TC) {}
  
    bool hasIntegratedCPP() const override { return false; }
  
    void ConstructJob(Compilation &C, const JobAction &JA,
                      const InputInfo &Output, const InputInfoList &Inputs,
                      const llvm::opt::ArgList &TCArgs,
                      const char *LinkingOutput) const override;
  
  private:
    /// \return llvm-link output file name.
    const char *constructLLVMLinkCommand(Compilation &C, const JobAction &JA,
                                         const InputInfoList &Inputs,
                                         const llvm::opt::ArgList &Args,
                                         llvm::StringRef SubArchName,
                                         llvm::StringRef OutputFilePrefix) const;
  
    /// \return opt output file name.
    const char *constructOptCommand(Compilation &C, const JobAction &JA,
                                    const InputInfoList &Inputs,
                                    const llvm::opt::ArgList &Args,
                                    llvm::StringRef SubArchName,
                                    llvm::StringRef OutputFilePrefix,
                                    const char *InputFileName) const;
  
    /// \return llc output file name.
    const char *constructLlcCommand(Compilation &C, const JobAction &JA,
                                    const InputInfoList &Inputs,
                                    const llvm::opt::ArgList &Args,
                                    llvm::StringRef SubArchName,
                                    llvm::StringRef OutputFilePrefix,
                                    const char *InputFileName,
                                    bool OutputIsAsm = false) const;
  
    void constructLldCommand(Compilation &C, const JobAction &JA,
                             const InputInfoList &Inputs, const InputInfo &Output,
                             const llvm::opt::ArgList &Args,
                             const char *InputFileName) const;
  };
  
  } // end namespace AMDGCN
  } // end namespace tools
  
  namespace toolchains {
  
  class LLVM_LIBRARY_VISIBILITY HIPToolChain final : public ROCMToolChain {
  public:
    HIPToolChain(const Driver &D, const llvm::Triple &Triple,
                  const ToolChain &HostTC, const llvm::opt::ArgList &Args);
  
    const llvm::Triple *getAuxTriple() const override {
      return &HostTC.getTriple();
    }
  
    llvm::opt::DerivedArgList *
    TranslateArgs(const llvm::opt::DerivedArgList &Args, StringRef BoundArch,
                  Action::OffloadKind DeviceOffloadKind) const override;
    void addClangTargetOptions(const llvm::opt::ArgList &DriverArgs,
                               llvm::opt::ArgStringList &CC1Args,
                               Action::OffloadKind DeviceOffloadKind) const override;
  
    bool useIntegratedAs() const override { return true; }
    bool isCrossCompiling() const override { return true; }
    bool isPICDefault() const override { return false; }
    bool isPIEDefault() const override { return false; }
    bool isPICDefaultForced() const override { return false; }
    bool SupportsProfiling() const override { return false; }
    bool IsMathErrnoDefault() const override { return false; }
  
    void addClangWarningOptions(llvm::opt::ArgStringList &CC1Args) const override;
    CXXStdlibType GetCXXStdlibType(const llvm::opt::ArgList &Args) const override;
    void
    AddClangSystemIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                              llvm::opt::ArgStringList &CC1Args) const override;
    void AddClangCXXStdlibIncludeArgs(
        const llvm::opt::ArgList &Args,
        llvm::opt::ArgStringList &CC1Args) const override;
    void AddIAMCUIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                             llvm::opt::ArgStringList &CC1Args) const override;
    void AddHIPIncludeArgs(const llvm::opt::ArgList &DriverArgs,
                           llvm::opt::ArgStringList &CC1Args) const override;
  
    SanitizerMask getSupportedSanitizers() const override;
  
    VersionTuple
    computeMSVCVersion(const Driver *D,
                       const llvm::opt::ArgList &Args) const override;
  
    unsigned GetDefaultDwarfVersion() const override { return 4; }
  
    const ToolChain &HostTC;
  
  protected:
    Tool *buildLinker() const override;
  };
  
  } // end namespace toolchains
  } // end namespace driver
  } // end namespace clang
  
  #endif // LLVM_CLANG_LIB_DRIVER_TOOLCHAINS_HIP_H
  