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//===-- RISCVCallLowering.cpp - Call lowering -------------------*- 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 "RISCVCallLowering.h"
#include "RISCVISelLowering.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
using namespace llvm;
RISCVCallLowering::RISCVCallLowering(const RISCVTargetLowering &TLI)
: CallLowering(&TLI) {}
bool RISCVCallLowering::lowerReturn(MachineIRBuilder &MIRBuilder,
const Value *Val,
ArrayRef<Register> VRegs) const {
MachineInstrBuilder Ret = MIRBuilder.buildInstrNoInsert(RISCV::PseudoRET);
if (Val != nullptr) {
return false;
}
MIRBuilder.insertInstr(Ret);
return true;
}
bool RISCVCallLowering::lowerFormalArguments(
MachineIRBuilder &MIRBuilder, const Function &F,
ArrayRef<ArrayRef<Register>> VRegs) const {
if (F.arg_empty())
return true;
return false;
}
bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
CallLoweringInfo &Info) const {
return false;
}
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