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//===--- AMDGPUHSAMetadataStreamer.h ----------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
/// \file
/// AMDGPU HSA Metadata Streamer.
///
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUHSAMETADATASTREAMER_H
#define LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUHSAMETADATASTREAMER_H

#include "AMDGPU.h"
#include "AMDKernelCodeT.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/BinaryFormat/MsgPackTypes.h"
#include "llvm/Support/AMDGPUMetadata.h"

namespace llvm {

class AMDGPUTargetStreamer;
class Argument;
class DataLayout;
class Function;
class MDNode;
class Module;
struct SIProgramInfo;
class Type;

namespace AMDGPU {
namespace HSAMD {

class MetadataStreamer {
public:
  virtual ~MetadataStreamer(){};

  virtual bool emitTo(AMDGPUTargetStreamer &TargetStreamer) = 0;

  virtual void begin(const Module &Mod) = 0;

  virtual void end() = 0;

  virtual void emitKernel(const MachineFunction &MF,
                          const SIProgramInfo &ProgramInfo) = 0;
};

class MetadataStreamerV3 final : public MetadataStreamer {
private:
  std::shared_ptr<msgpack::Node> HSAMetadataRoot =
      std::make_shared<msgpack::MapNode>();

  void dump(StringRef HSAMetadataString) const;

  void verify(StringRef HSAMetadataString) const;

  Optional<StringRef> getAccessQualifier(StringRef AccQual) const;

  Optional<StringRef> getAddressSpaceQualifier(unsigned AddressSpace) const;

  StringRef getValueKind(Type *Ty, StringRef TypeQual,
                         StringRef BaseTypeName) const;

  StringRef getValueType(Type *Ty, StringRef TypeName) const;

  std::string getTypeName(Type *Ty, bool Signed) const;

  std::shared_ptr<msgpack::ArrayNode>
  getWorkGroupDimensions(MDNode *Node) const;

  std::shared_ptr<msgpack::MapNode>
  getHSAKernelProps(const MachineFunction &MF,
                    const SIProgramInfo &ProgramInfo) const;

  void emitVersion();

  void emitPrintf(const Module &Mod);

  void emitKernelLanguage(const Function &Func, msgpack::MapNode &Kern);

  void emitKernelAttrs(const Function &Func, msgpack::MapNode &Kern);

  void emitKernelArgs(const Function &Func, msgpack::MapNode &Kern);

  void emitKernelArg(const Argument &Arg, unsigned &Offset,
                     msgpack::ArrayNode &Args);

  void emitKernelArg(const DataLayout &DL, Type *Ty, StringRef ValueKind,
                     unsigned &Offset, msgpack::ArrayNode &Args,
                     unsigned PointeeAlign = 0, StringRef Name = "",
                     StringRef TypeName = "", StringRef BaseTypeName = "",
                     StringRef AccQual = "", StringRef TypeQual = "");

  void emitHiddenKernelArgs(const Function &Func, unsigned &Offset,
                            msgpack::ArrayNode &Args);

  std::shared_ptr<msgpack::Node> &getRootMetadata(StringRef Key) {
    return (*cast<msgpack::MapNode>(HSAMetadataRoot.get()))[Key];
  }

  std::shared_ptr<msgpack::Node> &getHSAMetadataRoot() {
    return HSAMetadataRoot;
  }

public:
  MetadataStreamerV3() = default;
  ~MetadataStreamerV3() = default;

  bool emitTo(AMDGPUTargetStreamer &TargetStreamer) override;

  void begin(const Module &Mod) override;

  void end() override;

  void emitKernel(const MachineFunction &MF,
                  const SIProgramInfo &ProgramInfo) override;
};

class MetadataStreamerV2 final : public MetadataStreamer {
private:
  Metadata HSAMetadata;

  void dump(StringRef HSAMetadataString) const;

  void verify(StringRef HSAMetadataString) const;

  AccessQualifier getAccessQualifier(StringRef AccQual) const;

  AddressSpaceQualifier getAddressSpaceQualifier(unsigned AddressSpace) const;

  ValueKind getValueKind(Type *Ty, StringRef TypeQual,
                         StringRef BaseTypeName) const;

  ValueType getValueType(Type *Ty, StringRef TypeName) const;

  std::string getTypeName(Type *Ty, bool Signed) const;

  std::vector<uint32_t> getWorkGroupDimensions(MDNode *Node) const;

  Kernel::CodeProps::Metadata getHSACodeProps(
      const MachineFunction &MF,
      const SIProgramInfo &ProgramInfo) const;
  Kernel::DebugProps::Metadata getHSADebugProps(
      const MachineFunction &MF,
      const SIProgramInfo &ProgramInfo) const;

  void emitVersion();

  void emitPrintf(const Module &Mod);

  void emitKernelLanguage(const Function &Func);

  void emitKernelAttrs(const Function &Func);

  void emitKernelArgs(const Function &Func);

  void emitKernelArg(const Argument &Arg);

  void emitKernelArg(const DataLayout &DL, Type *Ty, ValueKind ValueKind,
                     unsigned PointeeAlign = 0,
                     StringRef Name = "", StringRef TypeName = "",
                     StringRef BaseTypeName = "", StringRef AccQual = "",
                     StringRef TypeQual = "");

  void emitHiddenKernelArgs(const Function &Func);

  const Metadata &getHSAMetadata() const {
    return HSAMetadata;
  }

public:
  MetadataStreamerV2() = default;
  ~MetadataStreamerV2() = default;

  bool emitTo(AMDGPUTargetStreamer &TargetStreamer) override;

  void begin(const Module &Mod) override;

  void end() override;

  void emitKernel(const MachineFunction &MF,
                  const SIProgramInfo &ProgramInfo) override;
};

} // end namespace HSAMD
} // end namespace AMDGPU
} // end namespace llvm

#endif // LLVM_LIB_TARGET_AMDGPU_MCTARGETDESC_AMDGPUHSAMETADATASTREAMER_H