MipsMCTargetDesc.cpp revision cd81d94322a39503e4a3e87b6ee03d4fcb3465fb 
1//===-- MipsMCTargetDesc.cpp - Mips 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 Mips specific target descriptions.
11//
12//===----------------------------------------------------------------------===//
13
14#include "InstPrinter/MipsInstPrinter.h"
15#include "MipsELFStreamer.h"
16#include "MipsMCAsmInfo.h"
17#include "MipsMCNaCl.h"
18#include "MipsMCTargetDesc.h"
19#include "MipsTargetStreamer.h"
20#include "llvm/ADT/Triple.h"
21#include "llvm/MC/MCCodeGenInfo.h"
22#include "llvm/MC/MCELFStreamer.h"
23#include "llvm/MC/MCInstrInfo.h"
24#include "llvm/MC/MCRegisterInfo.h"
25#include "llvm/MC/MCSubtargetInfo.h"
26#include "llvm/MC/MCSymbol.h"
27#include "llvm/MC/MachineLocation.h"
28#include "llvm/Support/CommandLine.h"
29#include "llvm/Support/ErrorHandling.h"
30#include "llvm/Support/FormattedStream.h"
31#include "llvm/Support/TargetRegistry.h"
32
33using namespace llvm;
34
35#define GET_INSTRINFO_MC_DESC
36#include "MipsGenInstrInfo.inc"
37
38#define GET_SUBTARGETINFO_MC_DESC
39#include "MipsGenSubtargetInfo.inc"
40
41#define GET_REGINFO_MC_DESC
42#include "MipsGenRegisterInfo.inc"
43
44/// Select the Mips CPU for the given triple and cpu name.
45/// FIXME: Merge with the copy in MipsSubtarget.cpp
46static inline StringRef selectMipsCPU(StringRef TT, StringRef CPU) {
47  if (CPU.empty() || CPU == "generic") {
48    Triple TheTriple(TT);
49    if (TheTriple.getArch() == Triple::mips ||
50        TheTriple.getArch() == Triple::mipsel)
51      CPU = "mips32";
52    else
53      CPU = "mips64";
54  }
55  return CPU;
56}
57
58static MCInstrInfo *createMipsMCInstrInfo() {
59  MCInstrInfo *X = new MCInstrInfo();
60  InitMipsMCInstrInfo(X);
61  return X;
62}
63
64static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
65  MCRegisterInfo *X = new MCRegisterInfo();
66  InitMipsMCRegisterInfo(X, Mips::RA);
67  return X;
68}
69
70static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
71                                                  StringRef FS) {
72  CPU = selectMipsCPU(TT, CPU);
73  MCSubtargetInfo *X = new MCSubtargetInfo();
74  InitMipsMCSubtargetInfo(X, TT, CPU, FS);
75  return X;
76}
77
78static MCAsmInfo *createMipsMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
79  MCAsmInfo *MAI = new MipsMCAsmInfo(TT);
80
81  unsigned SP = MRI.getDwarfRegNum(Mips::SP, true);
82  MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, SP, 0);
83  MAI->addInitialFrameState(Inst);
84
85  return MAI;
86}
87
88static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
89                                              CodeModel::Model CM,
90                                              CodeGenOpt::Level OL) {
91  MCCodeGenInfo *X = new MCCodeGenInfo();
92  if (CM == CodeModel::JITDefault)
93    RM = Reloc::Static;
94  else if (RM == Reloc::Default)
95    RM = Reloc::PIC_;
96  X->InitMCCodeGenInfo(RM, CM, OL);
97  return X;
98}
99
100static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
101                                              unsigned SyntaxVariant,
102                                              const MCAsmInfo &MAI,
103                                              const MCInstrInfo &MII,
104                                              const MCRegisterInfo &MRI,
105                                              const MCSubtargetInfo &STI) {
106  return new MipsInstPrinter(MAI, MII, MRI);
107}
108
109static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
110                                    MCContext &Context, MCAsmBackend &MAB,
111                                    raw_ostream &OS, MCCodeEmitter *Emitter,
112                                    const MCSubtargetInfo &STI,
113                                    bool RelaxAll, bool NoExecStack) {
114  MCStreamer *S;
115  if (!Triple(TT).isOSNaCl())
116    S = createMipsELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll,
117                              NoExecStack);
118  else
119    S = createMipsNaClELFStreamer(Context, MAB, OS, Emitter, STI, RelaxAll,
120                                  NoExecStack);
121  new MipsTargetELFStreamer(*S, STI);
122  return S;
123}
124
125static MCStreamer *
126createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
127                    bool isVerboseAsm, bool useDwarfDirectory,
128                    MCInstPrinter *InstPrint, MCCodeEmitter *CE,
129                    MCAsmBackend *TAB, bool ShowInst) {
130  MCStreamer *S = llvm::createAsmStreamer(
131      Ctx, OS, isVerboseAsm, useDwarfDirectory, InstPrint, CE, TAB, ShowInst);
132  new MipsTargetAsmStreamer(*S, OS);
133  return S;
134}
135
136static MCStreamer *createMipsNullStreamer(MCContext &Ctx) {
137  MCStreamer *S = llvm::createNullStreamer(Ctx);
138  new MipsTargetStreamer(*S);
139  return S;
140}
141
142extern "C" void LLVMInitializeMipsTargetMC() {
143  // Register the MC asm info.
144  RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
145  RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
146  RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
147  RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
148
149  // Register the MC codegen info.
150  TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
151                                        createMipsMCCodeGenInfo);
152  TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
153                                        createMipsMCCodeGenInfo);
154  TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
155                                        createMipsMCCodeGenInfo);
156  TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
157                                        createMipsMCCodeGenInfo);
158
159  // Register the MC instruction info.
160  TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
161  TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
162  TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
163  TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
164                                      createMipsMCInstrInfo);
165
166  // Register the MC register info.
167  TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
168  TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
169  TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
170  TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
171                                    createMipsMCRegisterInfo);
172
173  // Register the MC Code Emitter
174  TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
175                                        createMipsMCCodeEmitterEB);
176  TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
177                                        createMipsMCCodeEmitterEL);
178  TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
179                                        createMipsMCCodeEmitterEB);
180  TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
181                                        createMipsMCCodeEmitterEL);
182
183  // Register the object streamer.
184  TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
185  TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
186  TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
187  TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
188                                           createMCStreamer);
189
190  // Register the asm streamer.
191  TargetRegistry::RegisterAsmStreamer(TheMipsTarget, createMCAsmStreamer);
192  TargetRegistry::RegisterAsmStreamer(TheMipselTarget, createMCAsmStreamer);
193  TargetRegistry::RegisterAsmStreamer(TheMips64Target, createMCAsmStreamer);
194  TargetRegistry::RegisterAsmStreamer(TheMips64elTarget, createMCAsmStreamer);
195
196  TargetRegistry::RegisterNullStreamer(TheMipsTarget, createMipsNullStreamer);
197  TargetRegistry::RegisterNullStreamer(TheMipselTarget, createMipsNullStreamer);
198  TargetRegistry::RegisterNullStreamer(TheMips64Target, createMipsNullStreamer);
199  TargetRegistry::RegisterNullStreamer(TheMips64elTarget,
200                                       createMipsNullStreamer);
201
202  // Register the asm backend.
203  TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
204                                       createMipsAsmBackendEB32);
205  TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
206                                       createMipsAsmBackendEL32);
207  TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
208                                       createMipsAsmBackendEB64);
209  TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
210                                       createMipsAsmBackendEL64);
211
212  // Register the MC subtarget info.
213  TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
214                                          createMipsMCSubtargetInfo);
215  TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
216                                          createMipsMCSubtargetInfo);
217  TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
218                                          createMipsMCSubtargetInfo);
219  TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
220                                          createMipsMCSubtargetInfo);
221
222  // Register the MCInstPrinter.
223  TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
224                                        createMipsMCInstPrinter);
225  TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
226                                        createMipsMCInstPrinter);
227  TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
228                                        createMipsMCInstPrinter);
229  TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
230                                        createMipsMCInstPrinter);
231}
232