52 lines
1.7 KiB
C++
52 lines
1.7 KiB
C++
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//===-- RISCVCallLowering.cpp - Call lowering -------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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/// \file
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/// This file implements the lowering of LLVM calls to machine code calls for
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/// GlobalISel.
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//
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//===----------------------------------------------------------------------===//
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#include "RISCVCallLowering.h"
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#include "RISCVISelLowering.h"
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#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
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using namespace llvm;
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RISCVCallLowering::RISCVCallLowering(const RISCVTargetLowering &TLI)
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: CallLowering(&TLI) {}
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bool RISCVCallLowering::lowerReturn(MachineIRBuilder &MIRBuilder,
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const Value *Val, ArrayRef<Register> VRegs,
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FunctionLoweringInfo &FLI) const {
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MachineInstrBuilder Ret = MIRBuilder.buildInstrNoInsert(RISCV::PseudoRET);
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if (Val != nullptr) {
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return false;
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}
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MIRBuilder.insertInstr(Ret);
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return true;
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}
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bool RISCVCallLowering::lowerFormalArguments(MachineIRBuilder &MIRBuilder,
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const Function &F,
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ArrayRef<ArrayRef<Register>> VRegs,
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FunctionLoweringInfo &FLI) const {
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if (F.arg_empty())
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return true;
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return false;
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}
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bool RISCVCallLowering::lowerCall(MachineIRBuilder &MIRBuilder,
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CallLoweringInfo &Info) const {
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return false;
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}
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