1 //===-- PPCMCTargetDesc.cpp - PowerPC 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 PowerPC specific target descriptions.
12 //===----------------------------------------------------------------------===//
14 #include "PPCMCTargetDesc.h"
15 #include "InstPrinter/PPCInstPrinter.h"
16 #include "PPCMCAsmInfo.h"
17 #include "PPCTargetStreamer.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/MC/MCSymbol.h"
24 #include "llvm/MC/MachineLocation.h"
25 #include "llvm/Support/ErrorHandling.h"
26 #include "llvm/Support/FormattedStream.h"
27 #include "llvm/Support/TargetRegistry.h"
29 #define GET_INSTRINFO_MC_DESC
30 #include "PPCGenInstrInfo.inc"
32 #define GET_SUBTARGETINFO_MC_DESC
33 #include "PPCGenSubtargetInfo.inc"
35 #define GET_REGINFO_MC_DESC
36 #include "PPCGenRegisterInfo.inc"
40 // Pin the vtable to this file.
41 PPCTargetStreamer::~PPCTargetStreamer() {}
42 PPCTargetStreamer::PPCTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
44 static MCInstrInfo *createPPCMCInstrInfo() {
45 MCInstrInfo *X = new MCInstrInfo();
46 InitPPCMCInstrInfo(X);
50 static MCRegisterInfo *createPPCMCRegisterInfo(StringRef TT) {
52 bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
53 TheTriple.getArch() == Triple::ppc64le);
54 unsigned Flavour = isPPC64 ? 0 : 1;
55 unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
57 MCRegisterInfo *X = new MCRegisterInfo();
58 InitPPCMCRegisterInfo(X, RA, Flavour, Flavour);
62 static MCSubtargetInfo *createPPCMCSubtargetInfo(StringRef TT, StringRef CPU,
64 MCSubtargetInfo *X = new MCSubtargetInfo();
65 InitPPCMCSubtargetInfo(X, TT, CPU, FS);
69 static MCAsmInfo *createPPCMCAsmInfo(const MCRegisterInfo &MRI, StringRef TT) {
71 bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
72 TheTriple.getArch() == Triple::ppc64le);
75 if (TheTriple.isOSDarwin())
76 MAI = new PPCMCAsmInfoDarwin(isPPC64, TheTriple);
78 MAI = new PPCLinuxMCAsmInfo(isPPC64, TheTriple);
80 // Initial state of the frame pointer is R1.
81 unsigned Reg = isPPC64 ? PPC::X1 : PPC::R1;
82 MCCFIInstruction Inst =
83 MCCFIInstruction::createDefCfa(0, MRI.getDwarfRegNum(Reg, true), 0);
84 MAI->addInitialFrameState(Inst);
89 static MCCodeGenInfo *createPPCMCCodeGenInfo(StringRef TT, Reloc::Model RM,
91 CodeGenOpt::Level OL) {
92 MCCodeGenInfo *X = new MCCodeGenInfo();
94 if (RM == Reloc::Default) {
97 RM = Reloc::DynamicNoPIC;
101 if (CM == CodeModel::Default) {
103 if (!T.isOSDarwin() &&
104 (T.getArch() == Triple::ppc64 || T.getArch() == Triple::ppc64le))
105 CM = CodeModel::Medium;
107 X->InitMCCodeGenInfo(RM, CM, OL);
112 class PPCTargetAsmStreamer : public PPCTargetStreamer {
113 formatted_raw_ostream &OS;
116 PPCTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS)
117 : PPCTargetStreamer(S), OS(OS) {}
118 virtual void emitTCEntry(const MCSymbol &S) {
125 virtual void emitMachine(StringRef CPU) {
126 OS << "\t.machine " << CPU << '\n';
130 class PPCTargetELFStreamer : public PPCTargetStreamer {
132 PPCTargetELFStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
133 virtual void emitTCEntry(const MCSymbol &S) {
134 // Creates a R_PPC64_TOC relocation
135 Streamer.EmitSymbolValue(&S, 8);
137 virtual void emitMachine(StringRef CPU) {
138 // FIXME: Is there anything to do in here or does this directive only
143 class PPCTargetMachOStreamer : public PPCTargetStreamer {
145 PPCTargetMachOStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
146 virtual void emitTCEntry(const MCSymbol &S) {
147 llvm_unreachable("Unknown pseudo-op: .tc");
149 virtual void emitMachine(StringRef CPU) {
150 // FIXME: We should update the CPUType, CPUSubType in the Object file if
151 // the new values are different from the defaults.
156 // This is duplicated code. Refactor this.
157 static MCStreamer *createMCStreamer(const Target &T, StringRef TT,
158 MCContext &Ctx, MCAsmBackend &MAB,
160 MCCodeEmitter *Emitter,
161 const MCSubtargetInfo &STI,
164 if (Triple(TT).isOSDarwin()) {
165 MCStreamer *S = createMachOStreamer(Ctx, MAB, OS, Emitter, RelaxAll);
166 new PPCTargetMachOStreamer(*S);
171 createELFStreamer(Ctx, MAB, OS, Emitter, RelaxAll, NoExecStack);
172 new PPCTargetELFStreamer(*S);
177 createMCAsmStreamer(MCContext &Ctx, formatted_raw_ostream &OS,
178 bool isVerboseAsm, bool useCFI, bool useDwarfDirectory,
179 MCInstPrinter *InstPrint, MCCodeEmitter *CE,
180 MCAsmBackend *TAB, bool ShowInst) {
183 llvm::createAsmStreamer(Ctx, OS, isVerboseAsm, useCFI, useDwarfDirectory,
184 InstPrint, CE, TAB, ShowInst);
185 new PPCTargetAsmStreamer(*S, OS);
189 static MCInstPrinter *createPPCMCInstPrinter(const Target &T,
190 unsigned SyntaxVariant,
191 const MCAsmInfo &MAI,
192 const MCInstrInfo &MII,
193 const MCRegisterInfo &MRI,
194 const MCSubtargetInfo &STI) {
195 bool isDarwin = Triple(STI.getTargetTriple()).isOSDarwin();
196 return new PPCInstPrinter(MAI, MII, MRI, isDarwin);
199 extern "C" void LLVMInitializePowerPCTargetMC() {
200 // Register the MC asm info.
201 RegisterMCAsmInfoFn C(ThePPC32Target, createPPCMCAsmInfo);
202 RegisterMCAsmInfoFn D(ThePPC64Target, createPPCMCAsmInfo);
203 RegisterMCAsmInfoFn E(ThePPC64LETarget, createPPCMCAsmInfo);
205 // Register the MC codegen info.
206 TargetRegistry::RegisterMCCodeGenInfo(ThePPC32Target, createPPCMCCodeGenInfo);
207 TargetRegistry::RegisterMCCodeGenInfo(ThePPC64Target, createPPCMCCodeGenInfo);
208 TargetRegistry::RegisterMCCodeGenInfo(ThePPC64LETarget,
209 createPPCMCCodeGenInfo);
211 // Register the MC instruction info.
212 TargetRegistry::RegisterMCInstrInfo(ThePPC32Target, createPPCMCInstrInfo);
213 TargetRegistry::RegisterMCInstrInfo(ThePPC64Target, createPPCMCInstrInfo);
214 TargetRegistry::RegisterMCInstrInfo(ThePPC64LETarget,
215 createPPCMCInstrInfo);
217 // Register the MC register info.
218 TargetRegistry::RegisterMCRegInfo(ThePPC32Target, createPPCMCRegisterInfo);
219 TargetRegistry::RegisterMCRegInfo(ThePPC64Target, createPPCMCRegisterInfo);
220 TargetRegistry::RegisterMCRegInfo(ThePPC64LETarget, createPPCMCRegisterInfo);
222 // Register the MC subtarget info.
223 TargetRegistry::RegisterMCSubtargetInfo(ThePPC32Target,
224 createPPCMCSubtargetInfo);
225 TargetRegistry::RegisterMCSubtargetInfo(ThePPC64Target,
226 createPPCMCSubtargetInfo);
227 TargetRegistry::RegisterMCSubtargetInfo(ThePPC64LETarget,
228 createPPCMCSubtargetInfo);
230 // Register the MC Code Emitter
231 TargetRegistry::RegisterMCCodeEmitter(ThePPC32Target, createPPCMCCodeEmitter);
232 TargetRegistry::RegisterMCCodeEmitter(ThePPC64Target, createPPCMCCodeEmitter);
233 TargetRegistry::RegisterMCCodeEmitter(ThePPC64LETarget,
234 createPPCMCCodeEmitter);
236 // Register the asm backend.
237 TargetRegistry::RegisterMCAsmBackend(ThePPC32Target, createPPCAsmBackend);
238 TargetRegistry::RegisterMCAsmBackend(ThePPC64Target, createPPCAsmBackend);
239 TargetRegistry::RegisterMCAsmBackend(ThePPC64LETarget, createPPCAsmBackend);
241 // Register the object streamer.
242 TargetRegistry::RegisterMCObjectStreamer(ThePPC32Target, createMCStreamer);
243 TargetRegistry::RegisterMCObjectStreamer(ThePPC64Target, createMCStreamer);
244 TargetRegistry::RegisterMCObjectStreamer(ThePPC64LETarget, createMCStreamer);
246 // Register the asm streamer.
247 TargetRegistry::RegisterAsmStreamer(ThePPC32Target, createMCAsmStreamer);
248 TargetRegistry::RegisterAsmStreamer(ThePPC64Target, createMCAsmStreamer);
249 TargetRegistry::RegisterAsmStreamer(ThePPC64LETarget, createMCAsmStreamer);
251 // Register the MCInstPrinter.
252 TargetRegistry::RegisterMCInstPrinter(ThePPC32Target, createPPCMCInstPrinter);
253 TargetRegistry::RegisterMCInstPrinter(ThePPC64Target, createPPCMCInstPrinter);
254 TargetRegistry::RegisterMCInstPrinter(ThePPC64LETarget,
255 createPPCMCInstPrinter);