llvm/lib/Target/WebAssembly/GISel/WebAssemblyCallLowering.h

//===-- WebAssemblyCallLowering.h - Call lowering for GlobalISel -*- 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
/// This file describes how to lower LLVM calls to machine code calls.
///
//===----------------------------------------------------------------------===//

#ifndef LLVM_LIB_TARGET_WEBASSEMBLY_GISEL_WEBASSEMBLYCALLLOWERING_H
#define LLVM_LIB_TARGET_WEBASSEMBLY_GISEL_WEBASSEMBLYCALLLOWERING_H

#include "WebAssemblyISelLowering.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
#include "llvm/IR/CallingConv.h"

namespace llvm {

class WebAssemblyTargetLowering;

class WebAssemblyCallLowering : public CallLowering {
public:
  WebAssemblyCallLowering(const WebAssemblyTargetLowering &TLI);

  bool canLowerReturn(MachineFunction &MF, CallingConv::ID CallConv,
                      SmallVectorImpl<BaseArgInfo> &Outs,
                      bool IsVarArg) const override;
  bool lowerReturn(MachineIRBuilder &MIRBuilder, const Value *Val,
                   ArrayRef<Register> VRegs, FunctionLoweringInfo &FLI,
                   Register SwiftErrorVReg) const override;
  bool lowerFormalArguments(MachineIRBuilder &MIRBuilder, const Function &F,
                            ArrayRef<ArrayRef<Register>> VRegs,
                            FunctionLoweringInfo &FLI) const override;
  bool lowerCall(MachineIRBuilder &MIRBuilder,
                 CallLoweringInfo &Info) const override;
};
} // namespace llvm

#endif