| //===-- 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, |
| FunctionLoweringInfo &FLI) 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, |
| FunctionLoweringInfo &FLI) const { |
| |
| if (F.arg_empty()) |
| return true; |
| |
| return false; |
| } |
| |
| bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder, |
| CallLoweringInfo &Info) const { |
| return false; |
| } |