1//===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
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 XCore specific target descriptions.
10//
11//===----------------------------------------------------------------------===//
12
13#include "MCTargetDesc/XCoreMCTargetDesc.h"
14#include "MCTargetDesc/XCoreInstPrinter.h"
15#include "MCTargetDesc/XCoreMCAsmInfo.h"
16#include "TargetInfo/XCoreTargetInfo.h"
17#include "XCoreTargetStreamer.h"
18#include "llvm/ADT/StringRef.h"
19#include "llvm/MC/MCDwarf.h"
20#include "llvm/MC/MCInstrInfo.h"
21#include "llvm/MC/MCRegisterInfo.h"
22#include "llvm/MC/MCSubtargetInfo.h"
23#include "llvm/Support/CodeGen.h"
24#include "llvm/Support/ErrorHandling.h"
25#include "llvm/Support/FormattedStream.h"
26#include "llvm/Support/TargetRegistry.h"
27#include "llvm/Support/raw_ostream.h"
28
29using namespace llvm;
30
31#define GET_INSTRINFO_MC_DESC
32#include "XCoreGenInstrInfo.inc"
33
34#define GET_SUBTARGETINFO_MC_DESC
35#include "XCoreGenSubtargetInfo.inc"
36
37#define GET_REGINFO_MC_DESC
38#include "XCoreGenRegisterInfo.inc"
39
40static MCInstrInfo *createXCoreMCInstrInfo() {
41  MCInstrInfo *X = new MCInstrInfo();
42  InitXCoreMCInstrInfo(X);
43  return X;
44}
45
46static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
47  MCRegisterInfo *X = new MCRegisterInfo();
48  InitXCoreMCRegisterInfo(X, XCore::LR);
49  return X;
50}
51
52static MCSubtargetInfo *
53createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
54  return createXCoreMCSubtargetInfoImpl(TT, CPU, FS);
55}
56
57static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
58                                       const Triple &TT,
59                                       const MCTargetOptions &Options) {
60  MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
61
62  // Initial state of the frame pointer is SP.
63  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, XCore::SP, 0);
64  MAI->addInitialFrameState(Inst);
65
66  return MAI;
67}
68
69static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
70                                               unsigned SyntaxVariant,
71                                               const MCAsmInfo &MAI,
72                                               const MCInstrInfo &MII,
73                                               const MCRegisterInfo &MRI) {
74  return new XCoreInstPrinter(MAI, MII, MRI);
75}
76
77XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
78
79XCoreTargetStreamer::~XCoreTargetStreamer() = default;
80
81namespace {
82
83class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
84  formatted_raw_ostream &OS;
85
86public:
87  XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
88
89  void emitCCTopData(StringRef Name) override;
90  void emitCCTopFunction(StringRef Name) override;
91  void emitCCBottomData(StringRef Name) override;
92  void emitCCBottomFunction(StringRef Name) override;
93};
94
95} // end anonymous namespace
96
97XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
98                                               formatted_raw_ostream &OS)
99    : XCoreTargetStreamer(S), OS(OS) {}
100
101void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
102  OS << "\t.cc_top " << Name << ".data," << Name << '\n';
103}
104
105void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
106  OS << "\t.cc_top " << Name << ".function," << Name << '\n';
107}
108
109void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
110  OS << "\t.cc_bottom " << Name << ".data\n";
111}
112
113void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
114  OS << "\t.cc_bottom " << Name << ".function\n";
115}
116
117static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
118                                                 formatted_raw_ostream &OS,
119                                                 MCInstPrinter *InstPrint,
120                                                 bool isVerboseAsm) {
121  return new XCoreTargetAsmStreamer(S, OS);
122}
123
124// Force static initialization.
125extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXCoreTargetMC() {
126  // Register the MC asm info.
127  RegisterMCAsmInfoFn X(getTheXCoreTarget(), createXCoreMCAsmInfo);
128
129  // Register the MC instruction info.
130  TargetRegistry::RegisterMCInstrInfo(getTheXCoreTarget(),
131                                      createXCoreMCInstrInfo);
132
133  // Register the MC register info.
134  TargetRegistry::RegisterMCRegInfo(getTheXCoreTarget(),
135                                    createXCoreMCRegisterInfo);
136
137  // Register the MC subtarget info.
138  TargetRegistry::RegisterMCSubtargetInfo(getTheXCoreTarget(),
139                                          createXCoreMCSubtargetInfo);
140
141  // Register the MCInstPrinter
142  TargetRegistry::RegisterMCInstPrinter(getTheXCoreTarget(),
143                                        createXCoreMCInstPrinter);
144
145  TargetRegistry::RegisterAsmTargetStreamer(getTheXCoreTarget(),
146                                            createTargetAsmStreamer);
147}
148