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//===-- PPCCallLowering.h - Call lowering for GlobalISel -------*- C++ -*-===//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See 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 "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
#include "llvm/Support/Debug.h"
#define DEBUG_TYPE "ppc-call-lowering"
using namespace llvm;
PPCCallLowering::PPCCallLowering(const PPCTargetLowering &TLI)
: CallLowering(&TLI) {}
bool PPCCallLowering::lowerReturn(MachineIRBuilder &MIRBuilder,
const Value *Val, ArrayRef<Register> VRegs,
FunctionLoweringInfo &FLI,
Register SwiftErrorVReg) const {
assert(((Val && !VRegs.empty()) || (!Val && VRegs.empty())) &&
"Return value without a vreg");
if (VRegs.size() > 0)
return false;
return true;
bool PPCCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
const Function &F,
ArrayRef<ArrayRef<Register>> VRegs,
FunctionLoweringInfo &FLI) const {
// If VRegs is empty, then there are no formal arguments to lower and thus can
// always return true. If there are formal arguments, we currently do not
// handle them and thus return false.
return VRegs.empty();
bool PPCCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
CallLoweringInfo &Info) const {
return false;