1 //===-- MipsMCTargetDesc.cpp - Mips Target Descriptions -------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file provides Mips specific target descriptions.
12 //===----------------------------------------------------------------------===//
14 #include "MipsMCAsmInfo.h"
15 #include "MipsMCTargetDesc.h"
16 #include "InstPrinter/MipsInstPrinter.h"
17 #include "llvm/MC/MachineLocation.h"
18 #include "llvm/MC/MCCodeGenInfo.h"
19 #include "llvm/MC/MCInstrInfo.h"
20 #include "llvm/MC/MCRegisterInfo.h"
21 #include "llvm/MC/MCStreamer.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/Support/ErrorHandling.h"
24 #include "llvm/Support/TargetRegistry.h"
26 #define GET_INSTRINFO_MC_DESC
27 #include "MipsGenInstrInfo.inc"
29 #define GET_SUBTARGETINFO_MC_DESC
30 #include "MipsGenSubtargetInfo.inc"
32 #define GET_REGINFO_MC_DESC
33 #include "MipsGenRegisterInfo.inc"
37 static std::string ParseMipsTriple(StringRef TT, StringRef CPU) {
38 std::string MipsArchFeature;
39 size_t DashPosition = 0;
42 // Let's see if there is a dash, like mips-unknown-linux.
43 DashPosition = TT.find('-');
45 if (DashPosition == StringRef::npos) {
46 // No dash, we check the string size.
47 TheTriple = TT.substr(0);
49 // We are only interested in substring before dash.
50 TheTriple = TT.substr(0,DashPosition);
53 if (TheTriple == "mips" || TheTriple == "mipsel") {
54 if (CPU.empty() || CPU == "mips32") {
55 MipsArchFeature = "+mips32";
56 } else if (CPU == "mips32r2") {
57 MipsArchFeature = "+mips32r2";
60 if (CPU.empty() || CPU == "mips64") {
61 MipsArchFeature = "+mips64";
62 } else if (CPU == "mips64r2") {
63 MipsArchFeature = "+mips64r2";
66 return MipsArchFeature;
69 static MCInstrInfo *createMipsMCInstrInfo() {
70 MCInstrInfo *X = new MCInstrInfo();
71 InitMipsMCInstrInfo(X);
75 static MCRegisterInfo *createMipsMCRegisterInfo(StringRef TT) {
76 MCRegisterInfo *X = new MCRegisterInfo();
77 InitMipsMCRegisterInfo(X, Mips::RA);
81 static MCSubtargetInfo *createMipsMCSubtargetInfo(StringRef TT, StringRef CPU,
83 std::string ArchFS = ParseMipsTriple(TT,CPU);
86 ArchFS = ArchFS + "," + FS.str();
90 MCSubtargetInfo *X = new MCSubtargetInfo();
91 InitMipsMCSubtargetInfo(X, TT, CPU, ArchFS);
95 static MCAsmInfo *createMipsMCAsmInfo(const Target &T, StringRef TT) {
96 MCAsmInfo *MAI = new MipsMCAsmInfo(T, TT);
98 MachineLocation Dst(MachineLocation::VirtualFP);
99 MachineLocation Src(Mips::SP, 0);
100 MAI->addInitialFrameState(0, Dst, Src);
105 static MCCodeGenInfo *createMipsMCCodeGenInfo(StringRef TT, Reloc::Model RM,
107 CodeGenOpt::Level OL) {
108 MCCodeGenInfo *X = new MCCodeGenInfo();
109 if (CM == CodeModel::JITDefault)
111 else if (RM == Reloc::Default)
113 X->InitMCCodeGenInfo(RM, CM, OL);
117 static MCInstPrinter *createMipsMCInstPrinter(const Target &T,
118 unsigned SyntaxVariant,
119 const MCAsmInfo &MAI,
120 const MCInstrInfo &MII,
121 const MCRegisterInfo &MRI,
122 const MCSubtargetInfo &STI) {
123 return new MipsInstPrinter(MAI, MII, MRI);
126 static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
127 MCContext &Ctx, MCAsmBackend &MAB,
129 MCCodeEmitter *_Emitter,
132 Triple TheTriple(TT);
134 return createELFStreamer(Ctx, MAB, _OS, _Emitter, RelaxAll, NoExecStack);
137 extern "C" void LLVMInitializeMipsTargetMC() {
138 // Register the MC asm info.
139 RegisterMCAsmInfoFn X(TheMipsTarget, createMipsMCAsmInfo);
140 RegisterMCAsmInfoFn Y(TheMipselTarget, createMipsMCAsmInfo);
141 RegisterMCAsmInfoFn A(TheMips64Target, createMipsMCAsmInfo);
142 RegisterMCAsmInfoFn B(TheMips64elTarget, createMipsMCAsmInfo);
144 // Register the MC codegen info.
145 TargetRegistry::RegisterMCCodeGenInfo(TheMipsTarget,
146 createMipsMCCodeGenInfo);
147 TargetRegistry::RegisterMCCodeGenInfo(TheMipselTarget,
148 createMipsMCCodeGenInfo);
149 TargetRegistry::RegisterMCCodeGenInfo(TheMips64Target,
150 createMipsMCCodeGenInfo);
151 TargetRegistry::RegisterMCCodeGenInfo(TheMips64elTarget,
152 createMipsMCCodeGenInfo);
154 // Register the MC instruction info.
155 TargetRegistry::RegisterMCInstrInfo(TheMipsTarget, createMipsMCInstrInfo);
156 TargetRegistry::RegisterMCInstrInfo(TheMipselTarget, createMipsMCInstrInfo);
157 TargetRegistry::RegisterMCInstrInfo(TheMips64Target, createMipsMCInstrInfo);
158 TargetRegistry::RegisterMCInstrInfo(TheMips64elTarget,
159 createMipsMCInstrInfo);
161 // Register the MC register info.
162 TargetRegistry::RegisterMCRegInfo(TheMipsTarget, createMipsMCRegisterInfo);
163 TargetRegistry::RegisterMCRegInfo(TheMipselTarget, createMipsMCRegisterInfo);
164 TargetRegistry::RegisterMCRegInfo(TheMips64Target, createMipsMCRegisterInfo);
165 TargetRegistry::RegisterMCRegInfo(TheMips64elTarget,
166 createMipsMCRegisterInfo);
168 // Register the MC Code Emitter
169 TargetRegistry::RegisterMCCodeEmitter(TheMipsTarget,
170 createMipsMCCodeEmitterEB);
171 TargetRegistry::RegisterMCCodeEmitter(TheMipselTarget,
172 createMipsMCCodeEmitterEL);
173 TargetRegistry::RegisterMCCodeEmitter(TheMips64Target,
174 createMipsMCCodeEmitterEB);
175 TargetRegistry::RegisterMCCodeEmitter(TheMips64elTarget,
176 createMipsMCCodeEmitterEL);
178 // Register the object streamer.
179 TargetRegistry::RegisterMCObjectStreamer(TheMipsTarget, createMCStreamer);
180 TargetRegistry::RegisterMCObjectStreamer(TheMipselTarget, createMCStreamer);
181 TargetRegistry::RegisterMCObjectStreamer(TheMips64Target, createMCStreamer);
182 TargetRegistry::RegisterMCObjectStreamer(TheMips64elTarget,
185 // Register the asm backend.
186 TargetRegistry::RegisterMCAsmBackend(TheMipsTarget,
187 createMipsAsmBackendEB32);
188 TargetRegistry::RegisterMCAsmBackend(TheMipselTarget,
189 createMipsAsmBackendEL32);
190 TargetRegistry::RegisterMCAsmBackend(TheMips64Target,
191 createMipsAsmBackendEB64);
192 TargetRegistry::RegisterMCAsmBackend(TheMips64elTarget,
193 createMipsAsmBackendEL64);
195 // Register the MC subtarget info.
196 TargetRegistry::RegisterMCSubtargetInfo(TheMipsTarget,
197 createMipsMCSubtargetInfo);
198 TargetRegistry::RegisterMCSubtargetInfo(TheMipselTarget,
199 createMipsMCSubtargetInfo);
200 TargetRegistry::RegisterMCSubtargetInfo(TheMips64Target,
201 createMipsMCSubtargetInfo);
202 TargetRegistry::RegisterMCSubtargetInfo(TheMips64elTarget,
203 createMipsMCSubtargetInfo);
205 // Register the MCInstPrinter.
206 TargetRegistry::RegisterMCInstPrinter(TheMipsTarget,
207 createMipsMCInstPrinter);
208 TargetRegistry::RegisterMCInstPrinter(TheMipselTarget,
209 createMipsMCInstPrinter);
210 TargetRegistry::RegisterMCInstPrinter(TheMips64Target,
211 createMipsMCInstPrinter);
212 TargetRegistry::RegisterMCInstPrinter(TheMips64elTarget,
213 createMipsMCInstPrinter);