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/MCCodeGenInfo.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 "XCoreGenInstrInfo.inc"
30
31#define GET_SUBTARGETINFO_MC_DESC
32#include "XCoreGenSubtargetInfo.inc"
33
34#define GET_REGINFO_MC_DESC
35#include "XCoreGenRegisterInfo.inc"
36
37static MCInstrInfo *createXCoreMCInstrInfo() {
38  MCInstrInfo *X = new MCInstrInfo();
39  InitXCoreMCInstrInfo(X);
40  return X;
41}
42
43static MCRegisterInfo *createXCoreMCRegisterInfo(StringRef TT) {
44  MCRegisterInfo *X = new MCRegisterInfo();
45  InitXCoreMCRegisterInfo(X, XCore::LR);
46  return X;
47}
48
49static MCSubtargetInfo *createXCoreMCSubtargetInfo(StringRef TT, StringRef CPU,
50                                                   StringRef FS) {
51  MCSubtargetInfo *X = new MCSubtargetInfo();
52  InitXCoreMCSubtargetInfo(X, TT, CPU, FS);
53  return X;
54}
55
56static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
57                                       StringRef TT) {
58  MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
59
60  // Initial state of the frame pointer is SP.
61  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, XCore::SP, 0);
62  MAI->addInitialFrameState(Inst);
63
64  return MAI;
65}
66
67static MCCodeGenInfo *createXCoreMCCodeGenInfo(StringRef TT, Reloc::Model RM,
68                                               CodeModel::Model CM,
69                                               CodeGenOpt::Level OL) {
70  MCCodeGenInfo *X = new MCCodeGenInfo();
71  if (RM == Reloc::Default) {
72    RM = Reloc::Static;
73  }
74  if (CM == CodeModel::Default) {
75    CM = CodeModel::Small;
76  }
77  if (CM != CodeModel::Small && CM != CodeModel::Large)
78    report_fatal_error("Target only supports CodeModel Small or Large");
79
80  X->InitMCCodeGenInfo(RM, CM, OL);
81  return X;
82}
83
84static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
85                                               unsigned SyntaxVariant,
86                                               const MCAsmInfo &MAI,
87                                               const MCInstrInfo &MII,
88                                               const MCRegisterInfo &MRI) {
89  return new XCoreInstPrinter(MAI, MII, MRI);
90}
91
92XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
93XCoreTargetStreamer::~XCoreTargetStreamer() {}
94
95namespace {
96
97class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
98  formatted_raw_ostream &OS;
99public:
100  XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
101  void emitCCTopData(StringRef Name) override;
102  void emitCCTopFunction(StringRef Name) override;
103  void emitCCBottomData(StringRef Name) override;
104  void emitCCBottomFunction(StringRef Name) override;
105};
106
107XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
108                                               formatted_raw_ostream &OS)
109    : XCoreTargetStreamer(S), OS(OS) {}
110
111void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
112  OS << "\t.cc_top " << Name << ".data," << Name << '\n';
113}
114
115void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
116  OS << "\t.cc_top " << Name << ".function," << Name << '\n';
117}
118
119void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
120  OS << "\t.cc_bottom " << Name << ".data\n";
121}
122
123void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
124  OS << "\t.cc_bottom " << Name << ".function\n";
125}
126}
127
128static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
129                                                 formatted_raw_ostream &OS,
130                                                 MCInstPrinter *InstPrint,
131                                                 bool isVerboseAsm) {
132  return new XCoreTargetAsmStreamer(S, OS);
133}
134
135// Force static initialization.
136extern "C" void LLVMInitializeXCoreTargetMC() {
137  // Register the MC asm info.
138  RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
139
140  // Register the MC codegen info.
141  TargetRegistry::RegisterMCCodeGenInfo(TheXCoreTarget,
142                                        createXCoreMCCodeGenInfo);
143
144  // Register the MC instruction info.
145  TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
146
147  // Register the MC register info.
148  TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
149
150  // Register the MC subtarget info.
151  TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
152                                          createXCoreMCSubtargetInfo);
153
154  // Register the MCInstPrinter
155  TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
156                                        createXCoreMCInstPrinter);
157
158  TargetRegistry::RegisterAsmTargetStreamer(TheXCoreTarget,
159                                            createTargetAsmStreamer);
160}
161