llvm/llvm/lib/Target/AMDGPU/SIMachineFunctionInfo.h

//==- SIMachineFunctionInfo.h - SIMachineFunctionInfo interface --*- 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
//
//===----------------------------------------------------------------------===//
//
/// \file
//
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_AMDGPU_SIMACHINEFUNCTIONINFO_H
#define LLVM_LIB_TARGET_AMDGPU_SIMACHINEFUNCTIONINFO_H

#include "AMDGPUArgumentUsageInfo.h"
#include "AMDGPUMachineFunction.h"
#include "AMDGPUTargetMachine.h"
#include "GCNSubtarget.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
#include "SIInstrInfo.h"
#include "SIModeRegisterDefaults.h"
#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MIRYamlMapping.h"
#include "llvm/CodeGen/PseudoSourceValue.h"
#include "llvm/Support/raw_ostream.h"
#include <optional>

namespace llvm {

class MachineFrameInfo;
class MachineFunction;
class SIMachineFunctionInfo;
class SIRegisterInfo;
class TargetRegisterClass;

class AMDGPUPseudoSourceValue : public PseudoSourceValue { … };

class AMDGPUGWSResourcePseudoSourceValue final : public AMDGPUPseudoSourceValue { … };

namespace yaml {

struct SIArgument { … };

template <> struct MappingTraits<SIArgument> { … };

struct SIArgumentInfo { … };

template <> struct MappingTraits<SIArgumentInfo> { … };

// Default to default mode for default calling convention.
struct SIMode { … };

template <> struct MappingTraits<SIMode> { … };

struct SIMachineFunctionInfo final : public yaml::MachineFunctionInfo { … };

template <> struct MappingTraits<SIMachineFunctionInfo> { … };

} // end namespace yaml

// A CSR SGPR value can be preserved inside a callee using one of the following
// methods.
//   1. Copy to an unused scratch SGPR.
//   2. Spill to a VGPR lane.
//   3. Spill to memory via. a scratch VGPR.
// class PrologEpilogSGPRSaveRestoreInfo represents the save/restore method used
// for an SGPR at function prolog/epilog.
enum class SGPRSaveKind : uint8_t { … };

class PrologEpilogSGPRSaveRestoreInfo { … };

/// This class keeps track of the SPI_SP_INPUT_ADDR config register, which
/// tells the hardware which interpolation parameters to load.
class SIMachineFunctionInfo final : public AMDGPUMachineFunction,
                                    private MachineRegisterInfo::Delegate { … };

} // end namespace llvm

#endif // LLVM_LIB_TARGET_AMDGPU_SIMACHINEFUNCTIONINFO_H