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//===- lib/Target/AMDGPU/AMDGPUCallLowering.h - Call lowering -*- C++ -*---===//
//                     The LLVM Compiler Infrastructure
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
/// \file
/// This file describes how to lower LLVM calls to machine code calls.


#include "llvm/CodeGen/GlobalISel/CallLowering.h"

namespace llvm {

class AMDGPUTargetLowering;

class AMDGPUCallLowering: public CallLowering {

  unsigned lowerParameterPtr(MachineIRBuilder &MIRBuilder, Type *ParamTy,
                             unsigned Offset) const;

  void lowerParameter(MachineIRBuilder &MIRBuilder, Type *ParamTy,
                      unsigned Offset, unsigned DstReg) const;

  AMDGPUCallLowering(const AMDGPUTargetLowering &TLI);

  bool lowerReturn(MachineIRBuilder &MIRBuiler, const Value *Val,
                   unsigned VReg) const override;
  bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
                            ArrayRef<unsigned> VRegs) const override;
  CCAssignFn *CCAssignFnForCall(CallingConv::ID CC, bool IsVarArg) const;
} // End of namespace llvm;