ARCMCTargetDesc.cpp revision 360784 
1//===- ARCMCTargetDesc.cpp - ARC Target Descriptions ------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file provides ARC specific target descriptions.
10//
11//===----------------------------------------------------------------------===//
12
13#include "ARCMCTargetDesc.h"
14#include "ARCInstPrinter.h"
15#include "ARCMCAsmInfo.h"
16#include "ARCTargetStreamer.h"
17#include "TargetInfo/ARCTargetInfo.h"
18#include "llvm/MC/MCDwarf.h"
19#include "llvm/MC/MCInstrInfo.h"
20#include "llvm/MC/MCRegisterInfo.h"
21#include "llvm/MC/MCSubtargetInfo.h"
22#include "llvm/Support/ErrorHandling.h"
23#include "llvm/Support/FormattedStream.h"
24#include "llvm/Support/TargetRegistry.h"
25
26using namespace llvm;
27
28#define GET_INSTRINFO_MC_DESC
29#include "ARCGenInstrInfo.inc"
30
31#define GET_SUBTARGETINFO_MC_DESC
32#include "ARCGenSubtargetInfo.inc"
33
34#define GET_REGINFO_MC_DESC
35#include "ARCGenRegisterInfo.inc"
36
37static MCInstrInfo *createARCMCInstrInfo() {
38  auto *X = new MCInstrInfo();
39  InitARCMCInstrInfo(X);
40  return X;
41}
42
43static MCRegisterInfo *createARCMCRegisterInfo(const Triple &TT) {
44  auto *X = new MCRegisterInfo();
45  InitARCMCRegisterInfo(X, ARC::BLINK);
46  return X;
47}
48
49static MCSubtargetInfo *createARCMCSubtargetInfo(const Triple &TT,
50                                                 StringRef CPU, StringRef FS) {
51  return createARCMCSubtargetInfoImpl(TT, CPU, FS);
52}
53
54static MCAsmInfo *createARCMCAsmInfo(const MCRegisterInfo &MRI,
55                                     const Triple &TT,
56                                     const MCTargetOptions &Options) {
57  MCAsmInfo *MAI = new ARCMCAsmInfo(TT);
58
59  // Initial state of the frame pointer is SP.
60  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, ARC::SP, 0);
61  MAI->addInitialFrameState(Inst);
62
63  return MAI;
64}
65
66static MCInstPrinter *createARCMCInstPrinter(const Triple &T,
67                                             unsigned SyntaxVariant,
68                                             const MCAsmInfo &MAI,
69                                             const MCInstrInfo &MII,
70                                             const MCRegisterInfo &MRI) {
71  return new ARCInstPrinter(MAI, MII, MRI);
72}
73
74ARCTargetStreamer::ARCTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
75ARCTargetStreamer::~ARCTargetStreamer() = default;
76
77static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
78                                                 formatted_raw_ostream &OS,
79                                                 MCInstPrinter *InstPrint,
80                                                 bool isVerboseAsm) {
81  return new ARCTargetStreamer(S);
82}
83
84// Force static initialization.
85extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARCTargetMC() {
86  // Register the MC asm info.
87  Target &TheARCTarget = getTheARCTarget();
88  RegisterMCAsmInfoFn X(TheARCTarget, createARCMCAsmInfo);
89
90  // Register the MC instruction info.
91  TargetRegistry::RegisterMCInstrInfo(TheARCTarget, createARCMCInstrInfo);
92
93  // Register the MC register info.
94  TargetRegistry::RegisterMCRegInfo(TheARCTarget, createARCMCRegisterInfo);
95
96  // Register the MC subtarget info.
97  TargetRegistry::RegisterMCSubtargetInfo(TheARCTarget,
98                                          createARCMCSubtargetInfo);
99
100  // Register the MCInstPrinter
101  TargetRegistry::RegisterMCInstPrinter(TheARCTarget, createARCMCInstPrinter);
102
103  TargetRegistry::RegisterAsmTargetStreamer(TheARCTarget,
104                                            createTargetAsmStreamer);
105}
106