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 "MipsMCTargetDesc.h"
15 #include "InstPrinter/MipsInstPrinter.h"
16 #include "MipsAsmBackend.h"
17 #include "MipsELFStreamer.h"
18 #include "MipsMCAsmInfo.h"
19 #include "MipsMCNaCl.h"
20 #include "MipsTargetStreamer.h"
21 #include "llvm/ADT/Triple.h"
22 #include "llvm/MC/MCCodeEmitter.h"
23 #include "llvm/MC/MCELFStreamer.h"
24 #include "llvm/MC/MCInstrAnalysis.h"
25 #include "llvm/MC/MCInstrInfo.h"
26 #include "llvm/MC/MCObjectWriter.h"
27 #include "llvm/MC/MCRegisterInfo.h"
28 #include "llvm/MC/MCSubtargetInfo.h"
29 #include "llvm/MC/MCSymbol.h"
30 #include "llvm/MC/MachineLocation.h"
31 #include "llvm/Support/ErrorHandling.h"
32 #include "llvm/Support/FormattedStream.h"
33 #include "llvm/Support/TargetRegistry.h"
37 #define GET_INSTRINFO_MC_DESC
38 #include "MipsGenInstrInfo.inc"
40 #define GET_SUBTARGETINFO_MC_DESC
41 #include "MipsGenSubtargetInfo.inc"
43 #define GET_REGINFO_MC_DESC
44 #include "MipsGenRegisterInfo.inc"
46 /// Select the Mips CPU for the given triple and cpu name.
47 /// FIXME: Merge with the copy in MipsSubtarget.cpp
48 StringRef MIPS_MC::selectMipsCPU(const Triple &TT, StringRef CPU) {
49 if (CPU.empty() || CPU == "generic") {
50 if (TT.getSubArch() == llvm::Triple::MipsSubArch_r6) {
65 static MCInstrInfo *createMipsMCInstrInfo() {
66 MCInstrInfo *X = new MCInstrInfo();
67 InitMipsMCInstrInfo(X);
71 static MCRegisterInfo *createMipsMCRegisterInfo(const Triple &TT) {
72 MCRegisterInfo *X = new MCRegisterInfo();
73 InitMipsMCRegisterInfo(X, Mips::RA);
77 static MCSubtargetInfo *createMipsMCSubtargetInfo(const Triple &TT,
78 StringRef CPU, StringRef FS) {
79 CPU = MIPS_MC::selectMipsCPU(TT, CPU);
80 return createMipsMCSubtargetInfoImpl(TT, CPU, FS);
83 static MCAsmInfo *createMipsMCAsmInfo(const MCRegisterInfo &MRI,
85 MCAsmInfo *MAI = new MipsMCAsmInfo(TT);
87 unsigned SP = MRI.getDwarfRegNum(Mips::SP, true);
88 MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, SP, 0);
89 MAI->addInitialFrameState(Inst);
94 static MCInstPrinter *createMipsMCInstPrinter(const Triple &T,
95 unsigned SyntaxVariant,
97 const MCInstrInfo &MII,
98 const MCRegisterInfo &MRI) {
99 return new MipsInstPrinter(MAI, MII, MRI);
102 static MCStreamer *createMCStreamer(const Triple &T, MCContext &Context,
103 std::unique_ptr<MCAsmBackend> &&MAB,
104 std::unique_ptr<MCObjectWriter> &&OW,
105 std::unique_ptr<MCCodeEmitter> &&Emitter,
109 S = createMipsELFStreamer(Context, std::move(MAB), std::move(OW),
110 std::move(Emitter), RelaxAll);
112 S = createMipsNaClELFStreamer(Context, std::move(MAB), std::move(OW),
113 std::move(Emitter), RelaxAll);
117 static MCTargetStreamer *createMipsAsmTargetStreamer(MCStreamer &S,
118 formatted_raw_ostream &OS,
119 MCInstPrinter *InstPrint,
121 return new MipsTargetAsmStreamer(S, OS);
124 static MCTargetStreamer *createMipsNullTargetStreamer(MCStreamer &S) {
125 return new MipsTargetStreamer(S);
128 static MCTargetStreamer *
129 createMipsObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
130 return new MipsTargetELFStreamer(S, STI);
135 class MipsMCInstrAnalysis : public MCInstrAnalysis {
137 MipsMCInstrAnalysis(const MCInstrInfo *Info) : MCInstrAnalysis(Info) {}
139 bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size,
140 uint64_t &Target) const override {
141 unsigned NumOps = Inst.getNumOperands();
144 switch (Info->get(Inst.getOpcode()).OpInfo[NumOps - 1].OperandType) {
145 case MCOI::OPERAND_UNKNOWN:
146 case MCOI::OPERAND_IMMEDIATE:
148 Target = Inst.getOperand(NumOps - 1).getImm();
150 case MCOI::OPERAND_PCREL:
152 Target = Addr + Inst.getOperand(NumOps - 1).getImm();
161 static MCInstrAnalysis *createMipsMCInstrAnalysis(const MCInstrInfo *Info) {
162 return new MipsMCInstrAnalysis(Info);
165 extern "C" void LLVMInitializeMipsTargetMC() {
166 for (Target *T : {&getTheMipsTarget(), &getTheMipselTarget(),
167 &getTheMips64Target(), &getTheMips64elTarget()}) {
168 // Register the MC asm info.
169 RegisterMCAsmInfoFn X(*T, createMipsMCAsmInfo);
171 // Register the MC instruction info.
172 TargetRegistry::RegisterMCInstrInfo(*T, createMipsMCInstrInfo);
174 // Register the MC register info.
175 TargetRegistry::RegisterMCRegInfo(*T, createMipsMCRegisterInfo);
177 // Register the elf streamer.
178 TargetRegistry::RegisterELFStreamer(*T, createMCStreamer);
180 // Register the asm target streamer.
181 TargetRegistry::RegisterAsmTargetStreamer(*T, createMipsAsmTargetStreamer);
183 TargetRegistry::RegisterNullTargetStreamer(*T,
184 createMipsNullTargetStreamer);
186 // Register the MC subtarget info.
187 TargetRegistry::RegisterMCSubtargetInfo(*T, createMipsMCSubtargetInfo);
189 // Register the MC instruction analyzer.
190 TargetRegistry::RegisterMCInstrAnalysis(*T, createMipsMCInstrAnalysis);
192 // Register the MCInstPrinter.
193 TargetRegistry::RegisterMCInstPrinter(*T, createMipsMCInstPrinter);
195 TargetRegistry::RegisterObjectTargetStreamer(
196 *T, createMipsObjectTargetStreamer);
198 // Register the asm backend.
199 TargetRegistry::RegisterMCAsmBackend(*T, createMipsAsmBackend);
202 // Register the MC Code Emitter
203 for (Target *T : {&getTheMipsTarget(), &getTheMips64Target()})
204 TargetRegistry::RegisterMCCodeEmitter(*T, createMipsMCCodeEmitterEB);
206 for (Target *T : {&getTheMipselTarget(), &getTheMips64elTarget()})
207 TargetRegistry::RegisterMCCodeEmitter(*T, createMipsMCCodeEmitterEL);