forked from OSchip/llvm-project
51 lines
1.5 KiB
C++
51 lines
1.5 KiB
C++
//===-- 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;
|
|
}
|