1//===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file provides XCore specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "XCoreMCTargetDesc.h"
15#include "InstPrinter/XCoreInstPrinter.h"
16#include "XCoreMCAsmInfo.h"
17#include "XCoreTargetStreamer.h"
18#include "llvm/MC/MCInstrInfo.h"
19#include "llvm/MC/MCRegisterInfo.h"
20#include "llvm/MC/MCSubtargetInfo.h"
21#include "llvm/Support/ErrorHandling.h"
22#include "llvm/Support/FormattedStream.h"
23#include "llvm/Support/TargetRegistry.h"
24
25using namespace llvm;
26
27#define GET_INSTRINFO_MC_DESC
28#include "XCoreGenInstrInfo.inc"
29
30#define GET_SUBTARGETINFO_MC_DESC
31#include "XCoreGenSubtargetInfo.inc"
32
33#define GET_REGINFO_MC_DESC
34#include "XCoreGenRegisterInfo.inc"
35
36static MCInstrInfo *createXCoreMCInstrInfo() {
37  MCInstrInfo *X = new MCInstrInfo();
38  InitXCoreMCInstrInfo(X);
39  return X;
40}
41
42static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
43  MCRegisterInfo *X = new MCRegisterInfo();
44  InitXCoreMCRegisterInfo(X, XCore::LR);
45  return X;
46}
47
48static MCSubtargetInfo *
49createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
50  return createXCoreMCSubtargetInfoImpl(TT, CPU, FS);
51}
52
53static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
54                                       const Triple &TT) {
55  MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
56
57  // Initial state of the frame pointer is SP.
58  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, XCore::SP, 0);
59  MAI->addInitialFrameState(Inst);
60
61  return MAI;
62}
63
64static void adjustCodeGenOpts(const Triple &TT, Reloc::Model RM,
65                              CodeModel::Model &CM) {
66  if (CM == CodeModel::Default) {
67    CM = CodeModel::Small;
68  }
69  if (CM != CodeModel::Small && CM != CodeModel::Large)
70    report_fatal_error("Target only supports CodeModel Small or Large");
71}
72
73static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
74                                               unsigned SyntaxVariant,
75                                               const MCAsmInfo &MAI,
76                                               const MCInstrInfo &MII,
77                                               const MCRegisterInfo &MRI) {
78  return new XCoreInstPrinter(MAI, MII, MRI);
79}
80
81XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
82XCoreTargetStreamer::~XCoreTargetStreamer() {}
83
84namespace {
85
86class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
87  formatted_raw_ostream &OS;
88public:
89  XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
90  void emitCCTopData(StringRef Name) override;
91  void emitCCTopFunction(StringRef Name) override;
92  void emitCCBottomData(StringRef Name) override;
93  void emitCCBottomFunction(StringRef Name) override;
94};
95
96XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
97                                               formatted_raw_ostream &OS)
98    : XCoreTargetStreamer(S), OS(OS) {}
99
100void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
101  OS << "\t.cc_top " << Name << ".data," << Name << '\n';
102}
103
104void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
105  OS << "\t.cc_top " << Name << ".function," << Name << '\n';
106}
107
108void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
109  OS << "\t.cc_bottom " << Name << ".data\n";
110}
111
112void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
113  OS << "\t.cc_bottom " << Name << ".function\n";
114}
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" void LLVMInitializeXCoreTargetMC() {
126  // Register the MC asm info.
127  RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
128
129  // Register the MC codegen info.
130  TargetRegistry::registerMCAdjustCodeGenOpts(TheXCoreTarget,
131                                              adjustCodeGenOpts);
132
133  // Register the MC instruction info.
134  TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
135
136  // Register the MC register info.
137  TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
138
139  // Register the MC subtarget info.
140  TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
141                                          createXCoreMCSubtargetInfo);
142
143  // Register the MCInstPrinter
144  TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
145                                        createXCoreMCInstPrinter);
146
147  TargetRegistry::RegisterAsmTargetStreamer(TheXCoreTarget,
148                                            createTargetAsmStreamer);
149}
150