Page MenuHomePhabricator
Differential D132108 Diff 454155 llvm/lib/Target/LoongArch/LoongArchMCInstLower.cpp

Changeset View

Standalone View

View Options

llvm/lib/Target/LoongArch/LoongArchMCInstLower.cpp

//=- LoongArchMCInstLower.cpp - Convert LoongArch MachineInstr to an MCInst -=// //=- LoongArchMCInstLower.cpp - Convert LoongArch MachineInstr to an MCInst -=//
// //
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information. // See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
// //
// This file contains code to lower LoongArch MachineInstrs to their // This file contains code to lower LoongArch MachineInstrs to their
// corresponding MCInst records. // corresponding MCInst records.
// //
//===----------------------------------------------------------------------===// //===----------------------------------------------------------------------===//
#include "LoongArch.h" #include "LoongArch.h"
#include "LoongArchSubtarget.h" #include "LoongArchSubtarget.h"
#include "MCTargetDesc/LoongArchBaseInfo.h"
#include "MCTargetDesc/LoongArchMCExpr.h"
#include "llvm/CodeGen/AsmPrinter.h" #include "llvm/CodeGen/AsmPrinter.h"
#include "llvm/CodeGen/MachineBasicBlock.h" #include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineInstr.h" #include "llvm/CodeGen/MachineInstr.h"
#include "llvm/MC/MCAsmInfo.h" #include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h" #include "llvm/MC/MCContext.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
using namespace llvm; using namespace llvm;
static MCOperand lowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym, static MCOperand lowerSymbolOperand(const MachineOperand &MO, MCSymbol *Sym,
const AsmPrinter &AP) { const AsmPrinter &AP) {
MCContext &Ctx = AP.OutContext; MCContext &Ctx = AP.OutContext;
LoongArchMCExpr::VariantKind Kind;
// TODO: Processing target flags. switch (MO.getTargetFlags()) {
default:
llvm_unreachable("Unknown target flag on GV operand");
case LoongArchII::MO_None:
Kind = LoongArchMCExpr::VK_LoongArch_None;
break;
case LoongArchII::MO_CALL:
Kind = LoongArchMCExpr::VK_LoongArch_CALL;
break;
case LoongArchII::MO_CALL_PLT:
Kind = LoongArchMCExpr::VK_LoongArch_CALL_PLT;
break;
case LoongArchII::MO_PCREL_HI:
Kind = LoongArchMCExpr::VK_LoongArch_PCREL_HI;
break;
case LoongArchII::MO_PCREL_LO:
Kind = LoongArchMCExpr::VK_LoongArch_PCREL_LO;
break;
// TODO: Handle more target-flags.
}
const MCExpr *ME = const MCExpr *ME =
MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_None, Ctx); MCSymbolRefExpr::create(Sym, MCSymbolRefExpr::VK_None, Ctx);
if (!MO.isJTI() && !MO.isMBB() && MO.getOffset()) if (!MO.isJTI() && !MO.isMBB() && MO.getOffset())
ME = MCBinaryExpr::createAdd( ME = MCBinaryExpr::createAdd(
ME, MCConstantExpr::create(MO.getOffset(), Ctx), Ctx); ME, MCConstantExpr::create(MO.getOffset(), Ctx), Ctx);
if (Kind != LoongArchMCExpr::VK_LoongArch_None)
ME = LoongArchMCExpr::create(ME, Kind, Ctx);
return MCOperand::createExpr(ME); return MCOperand::createExpr(ME);
} }
bool llvm::lowerLoongArchMachineOperandToMCOperand(const MachineOperand &MO, bool llvm::lowerLoongArchMachineOperandToMCOperand(const MachineOperand &MO,
MCOperand &MCOp, MCOperand &MCOp,
const AsmPrinter &AP) { const AsmPrinter &AP) {
switch (MO.getType()) { switch (MO.getType()) {
default: default:
▲ Show 20 Lines • Show All 46 Lines • Show Last 20 Lines