llvm.org GIT mirror llvm / release_80 lib / Target / AMDGPU / AMDGPUCallLowering.h

Tree @release_80 (Download .tar.gz)

AMDGPUCallLowering.h @release_80raw · history · blame

//===- 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 "AMDGPU.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"

namespace llvm {

class AMDGPUTargetLowering;

class AMDGPUCallLowering: public CallLowering {
  unsigned lowerParameterPtr(MachineIRBuilder &MIRBuilder, Type *ParamTy,
                             uint64_t Offset) const;

  void lowerParameter(MachineIRBuilder &MIRBuilder, Type *ParamTy,
                      uint64_t Offset, unsigned Align,
                      unsigned DstReg) const;

  AMDGPUCallLowering(const AMDGPUTargetLowering &TLI);

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