llvm/llvm/lib/Target/PowerPC/GISel/PPCCallLowering.cpp

//===-- PPCCallLowering.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 implements the lowering of LLVM calls to machine code calls for
/// GlobalISel.
///
//===----------------------------------------------------------------------===//

#include "PPCCallLowering.h"
#include "PPCCallingConv.h"
#include "PPCISelLowering.h"
#include "PPCSubtarget.h"
#include "PPCTargetMachine.h"
#include "llvm/CodeGen/CallingConvLower.h"
#include "llvm/CodeGen/GlobalISel/CallLowering.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
#include "llvm/CodeGen/TargetCallingConv.h"
#include "llvm/Support/Debug.h"

#define DEBUG_TYPE …

usingnamespacellvm;

namespace {

struct OutgoingArgHandler : public CallLowering::OutgoingValueHandler { … };
} // namespace

void OutgoingArgHandler::assignValueToReg(Register ValVReg, Register PhysReg,
                                          const CCValAssign &VA) { … }

void OutgoingArgHandler::assignValueToAddress(Register ValVReg, Register Addr,
                                              LLT MemTy,
                                              const MachinePointerInfo &MPO,
                                              const CCValAssign &VA) { … }

Register OutgoingArgHandler::getStackAddress(uint64_t Size, int64_t Offset,
                                             MachinePointerInfo &MPO,
                                             ISD::ArgFlagsTy Flags) { … }

PPCCallLowering::PPCCallLowering(const PPCTargetLowering &TLI)
    : … { … }

bool PPCCallLowering::lowerReturn(MachineIRBuilder &MIRBuilder,
                                  const Value *Val, ArrayRef<Register> VRegs,
                                  FunctionLoweringInfo &FLI,
                                  Register SwiftErrorVReg) const { … }

bool PPCCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
                                CallLoweringInfo &Info) const { … }

bool PPCCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
                                           const Function &F,
                                           ArrayRef<ArrayRef<Register>> VRegs,
                                           FunctionLoweringInfo &FLI) const { … }

void PPCIncomingValueHandler::assignValueToReg(Register ValVReg,
                                               Register PhysReg,
                                               const CCValAssign &VA) { … }

void PPCIncomingValueHandler::assignValueToAddress(
    Register ValVReg, Register Addr, LLT MemTy, const MachinePointerInfo &MPO,
    const CCValAssign &VA) { … }

Register PPCIncomingValueHandler::getStackAddress(uint64_t Size, int64_t Offset,
                                                  MachinePointerInfo &MPO,
                                                  ISD::ArgFlagsTy Flags) { … }

void FormalArgHandler::markPhysRegUsed(unsigned PhysReg) { … }