LLVM  15.0.0git
PPCMCTargetDesc.cpp
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1 //===-- PPCMCTargetDesc.cpp - PowerPC Target Descriptions -----------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file provides PowerPC specific target descriptions.
10 //
11 //===----------------------------------------------------------------------===//
12 
16 #include "PPCELFStreamer.h"
17 #include "PPCTargetStreamer.h"
18 #include "PPCXCOFFStreamer.h"
20 #include "llvm/ADT/SmallPtrSet.h"
21 #include "llvm/ADT/StringRef.h"
22 #include "llvm/ADT/Triple.h"
23 #include "llvm/BinaryFormat/ELF.h"
24 #include "llvm/MC/MCAsmBackend.h"
25 #include "llvm/MC/MCAssembler.h"
26 #include "llvm/MC/MCCodeEmitter.h"
27 #include "llvm/MC/MCContext.h"
28 #include "llvm/MC/MCDwarf.h"
29 #include "llvm/MC/MCELFStreamer.h"
30 #include "llvm/MC/MCExpr.h"
32 #include "llvm/MC/MCInstrInfo.h"
33 #include "llvm/MC/MCObjectWriter.h"
34 #include "llvm/MC/MCRegisterInfo.h"
35 #include "llvm/MC/MCSectionXCOFF.h"
36 #include "llvm/MC/MCStreamer.h"
38 #include "llvm/MC/MCSymbol.h"
39 #include "llvm/MC/MCSymbolELF.h"
40 #include "llvm/MC/MCSymbolXCOFF.h"
41 #include "llvm/MC/TargetRegistry.h"
42 #include "llvm/Support/Casting.h"
43 #include "llvm/Support/CodeGen.h"
47 
48 using namespace llvm;
49 
50 #define GET_INSTRINFO_MC_DESC
51 #include "PPCGenInstrInfo.inc"
52 
53 #define GET_SUBTARGETINFO_MC_DESC
54 #include "PPCGenSubtargetInfo.inc"
55 
56 #define GET_REGINFO_MC_DESC
57 #include "PPCGenRegisterInfo.inc"
58 
60 
61 // Pin the vtable to this file.
63 
65  MCInstrInfo *X = new MCInstrInfo();
66  InitPPCMCInstrInfo(X);
67  return X;
68 }
69 
71  bool isPPC64 =
72  (TT.getArch() == Triple::ppc64 || TT.getArch() == Triple::ppc64le);
73  unsigned Flavour = isPPC64 ? 0 : 1;
74  unsigned RA = isPPC64 ? PPC::LR8 : PPC::LR;
75 
77  InitPPCMCRegisterInfo(X, RA, Flavour, Flavour);
78  return X;
79 }
80 
82  StringRef CPU, StringRef FS) {
83  // Set some default feature to MC layer.
84  std::string FullFS = std::string(FS);
85 
86  if (TT.isOSAIX()) {
87  if (!FullFS.empty())
88  FullFS = "+aix," + FullFS;
89  else
90  FullFS = "+aix";
91  }
92 
93  return createPPCMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FullFS);
94 }
95 
97  const Triple &TheTriple,
98  const MCTargetOptions &Options) {
99  bool isPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
100  TheTriple.getArch() == Triple::ppc64le);
101 
102  MCAsmInfo *MAI;
103  if (TheTriple.isOSBinFormatXCOFF())
104  MAI = new PPCXCOFFMCAsmInfo(isPPC64, TheTriple);
105  else
106  MAI = new PPCELFMCAsmInfo(isPPC64, TheTriple);
107 
108  // Initial state of the frame pointer is R1.
109  unsigned Reg = isPPC64 ? PPC::X1 : PPC::R1;
110  MCCFIInstruction Inst =
111  MCCFIInstruction::cfiDefCfa(nullptr, MRI.getDwarfRegNum(Reg, true), 0);
112  MAI->addInitialFrameState(Inst);
113 
114  return MAI;
115 }
116 
117 static MCStreamer *
119  std::unique_ptr<MCAsmBackend> &&MAB,
120  std::unique_ptr<MCObjectWriter> &&OW,
121  std::unique_ptr<MCCodeEmitter> &&Emitter, bool RelaxAll) {
123  std::move(Emitter));
124 }
125 
127  const Triple &T, MCContext &Context, std::unique_ptr<MCAsmBackend> &&MAB,
128  std::unique_ptr<MCObjectWriter> &&OW,
129  std::unique_ptr<MCCodeEmitter> &&Emitter, bool RelaxAll) {
131  std::move(Emitter));
132 }
133 
134 namespace {
135 
136 class PPCTargetAsmStreamer : public PPCTargetStreamer {
138 
139 public:
140  PPCTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS)
141  : PPCTargetStreamer(S), OS(OS) {}
142 
143  void emitTCEntry(const MCSymbol &S,
145  if (const MCSymbolXCOFF *XSym = dyn_cast<MCSymbolXCOFF>(&S)) {
146  MCSymbolXCOFF *TCSym =
147  cast<MCSectionXCOFF>(Streamer.getCurrentSectionOnly())
148  ->getQualNameSymbol();
149  // If the variant kind is VK_PPC_AIX_TLSGDM the entry represents the
150  // region handle for the symbol, we add the relocation specifier @m.
151  // If the variant kind is VK_PPC_AIX_TLSGD the entry represents the
152  // variable offset for the symbol, we add the relocation specifier @gd.
153  if (Kind == MCSymbolRefExpr::VariantKind::VK_PPC_AIX_TLSGD ||
154  Kind == MCSymbolRefExpr::VariantKind::VK_PPC_AIX_TLSGDM)
155  OS << "\t.tc " << TCSym->getName() << "," << XSym->getName() << "@"
157  else
158  OS << "\t.tc " << TCSym->getName() << "," << XSym->getName() << '\n';
159 
160  if (TCSym->hasRename())
161  Streamer.emitXCOFFRenameDirective(TCSym, TCSym->getSymbolTableName());
162  return;
163  }
164 
165  OS << "\t.tc " << S.getName() << "[TC]," << S.getName() << '\n';
166  }
167 
168  void emitMachine(StringRef CPU) override {
169  OS << "\t.machine " << CPU << '\n';
170  }
171 
172  void emitAbiVersion(int AbiVersion) override {
173  OS << "\t.abiversion " << AbiVersion << '\n';
174  }
175 
176  void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
177  const MCAsmInfo *MAI = Streamer.getContext().getAsmInfo();
178 
179  OS << "\t.localentry\t";
180  S->print(OS, MAI);
181  OS << ", ";
182  LocalOffset->print(OS, MAI);
183  OS << '\n';
184  }
185 };
186 
187 class PPCTargetELFStreamer : public PPCTargetStreamer {
188 public:
189  PPCTargetELFStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
190 
191  MCELFStreamer &getStreamer() {
192  return static_cast<MCELFStreamer &>(Streamer);
193  }
194 
195  void emitTCEntry(const MCSymbol &S,
197  // Creates a R_PPC64_TOC relocation
198  Streamer.emitValueToAlignment(8);
199  Streamer.emitSymbolValue(&S, 8);
200  }
201 
202  void emitMachine(StringRef CPU) override {
203  // FIXME: Is there anything to do in here or does this directive only
204  // limit the parser?
205  }
206 
207  void emitAbiVersion(int AbiVersion) override {
208  MCAssembler &MCA = getStreamer().getAssembler();
209  unsigned Flags = MCA.getELFHeaderEFlags();
210  Flags &= ~ELF::EF_PPC64_ABI;
211  Flags |= (AbiVersion & ELF::EF_PPC64_ABI);
212  MCA.setELFHeaderEFlags(Flags);
213  }
214 
215  void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
216  MCAssembler &MCA = getStreamer().getAssembler();
217 
218  // encodePPC64LocalEntryOffset will report an error if it cannot
219  // encode LocalOffset.
220  unsigned Encoded = encodePPC64LocalEntryOffset(LocalOffset);
221 
222  unsigned Other = S->getOther();
224  Other |= Encoded;
225  S->setOther(Other);
226 
227  // For GAS compatibility, unless we already saw a .abiversion directive,
228  // set e_flags to indicate ELFv2 ABI.
229  unsigned Flags = MCA.getELFHeaderEFlags();
230  if ((Flags & ELF::EF_PPC64_ABI) == 0)
231  MCA.setELFHeaderEFlags(Flags | 2);
232  }
233 
234  void emitAssignment(MCSymbol *S, const MCExpr *Value) override {
235  auto *Symbol = cast<MCSymbolELF>(S);
236 
237  // When encoding an assignment to set symbol A to symbol B, also copy
238  // the st_other bits encoding the local entry point offset.
239  if (copyLocalEntry(Symbol, Value))
240  UpdateOther.insert(Symbol);
241  else
242  UpdateOther.erase(Symbol);
243  }
244 
245  void finish() override {
246  for (auto *Sym : UpdateOther)
247  if (Sym->isVariable())
248  copyLocalEntry(Sym, Sym->getVariableValue());
249 
250  // Clear the set of symbols that needs to be updated so the streamer can
251  // be reused without issues.
252  UpdateOther.clear();
253  }
254 
255 private:
256  SmallPtrSet<MCSymbolELF *, 32> UpdateOther;
257 
258  bool copyLocalEntry(MCSymbolELF *D, const MCExpr *S) {
259  auto *Ref = dyn_cast<const MCSymbolRefExpr>(S);
260  if (!Ref)
261  return false;
262  const auto &RhsSym = cast<MCSymbolELF>(Ref->getSymbol());
263  unsigned Other = D->getOther();
265  Other |= RhsSym.getOther() & ELF::STO_PPC64_LOCAL_MASK;
266  D->setOther(Other);
267  return true;
268  }
269 
270  unsigned encodePPC64LocalEntryOffset(const MCExpr *LocalOffset) {
271  MCAssembler &MCA = getStreamer().getAssembler();
272  int64_t Offset;
273  if (!LocalOffset->evaluateAsAbsolute(Offset, MCA))
274  MCA.getContext().reportError(LocalOffset->getLoc(),
275  ".localentry expression must be absolute");
276 
277  switch (Offset) {
278  default:
279  MCA.getContext().reportError(
280  LocalOffset->getLoc(), ".localentry expression must be a power of 2");
281  return 0;
282  case 0:
283  return 0;
284  case 1:
285  return 1 << ELF::STO_PPC64_LOCAL_BIT;
286  case 4:
287  case 8:
288  case 16:
289  case 32:
290  case 64:
291  return (int)Log2(Offset) << (int)ELF::STO_PPC64_LOCAL_BIT;
292  }
293  }
294 };
295 
296 class PPCTargetMachOStreamer : public PPCTargetStreamer {
297 public:
298  PPCTargetMachOStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
299 
300  void emitTCEntry(const MCSymbol &S,
302  llvm_unreachable("Unknown pseudo-op: .tc");
303  }
304 
305  void emitMachine(StringRef CPU) override {
306  // FIXME: We should update the CPUType, CPUSubType in the Object file if
307  // the new values are different from the defaults.
308  }
309 
310  void emitAbiVersion(int AbiVersion) override {
311  llvm_unreachable("Unknown pseudo-op: .abiversion");
312  }
313 
314  void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
315  llvm_unreachable("Unknown pseudo-op: .localentry");
316  }
317 };
318 
319 class PPCTargetXCOFFStreamer : public PPCTargetStreamer {
320 public:
321  PPCTargetXCOFFStreamer(MCStreamer &S) : PPCTargetStreamer(S) {}
322 
323  void emitTCEntry(const MCSymbol &S,
325  const MCAsmInfo *MAI = Streamer.getContext().getAsmInfo();
326  const unsigned PointerSize = MAI->getCodePointerSize();
327  Streamer.emitValueToAlignment(PointerSize);
328  Streamer.emitValue(MCSymbolRefExpr::create(&S, Kind, Streamer.getContext()),
329  PointerSize);
330  }
331 
332  void emitMachine(StringRef CPU) override {
333  llvm_unreachable("Machine pseudo-ops are invalid for XCOFF.");
334  }
335 
336  void emitAbiVersion(int AbiVersion) override {
337  llvm_unreachable("ABI-version pseudo-ops are invalid for XCOFF.");
338  }
339 
340  void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset) override {
341  llvm_unreachable("Local-entry pseudo-ops are invalid for XCOFF.");
342  }
343 };
344 
345 } // end anonymous namespace
346 
349  MCInstPrinter *InstPrint,
350  bool isVerboseAsm) {
351  return new PPCTargetAsmStreamer(S, OS);
352 }
353 
354 static MCTargetStreamer *
356  const Triple &TT = STI.getTargetTriple();
357  if (TT.isOSBinFormatELF())
358  return new PPCTargetELFStreamer(S);
359  if (TT.isOSBinFormatXCOFF())
360  return new PPCTargetXCOFFStreamer(S);
361  return new PPCTargetMachOStreamer(S);
362 }
363 
365  unsigned SyntaxVariant,
366  const MCAsmInfo &MAI,
367  const MCInstrInfo &MII,
368  const MCRegisterInfo &MRI) {
369  return new PPCInstPrinter(MAI, MII, MRI, T);
370 }
371 
372 namespace {
373 
374 class PPCMCInstrAnalysis : public MCInstrAnalysis {
375 public:
376  explicit PPCMCInstrAnalysis(const MCInstrInfo *Info)
377  : MCInstrAnalysis(Info) {}
378 
379  bool evaluateBranch(const MCInst &Inst, uint64_t Addr, uint64_t Size,
380  uint64_t &Target) const override {
381  unsigned NumOps = Inst.getNumOperands();
382  if (NumOps == 0 ||
383  Info->get(Inst.getOpcode()).OpInfo[NumOps - 1].OperandType !=
385  return false;
386  Target = Addr + Inst.getOperand(NumOps - 1).getImm() * Size;
387  return true;
388  }
389 };
390 
391 } // end anonymous namespace
392 
394  return new PPCMCInstrAnalysis(Info);
395 }
396 
400  // Register the MC asm info.
402 
403  // Register the MC instruction info.
405 
406  // Register the MC register info.
408 
409  // Register the MC subtarget info.
411 
412  // Register the MC instruction analyzer.
414 
415  // Register the MC Code Emitter
417 
418  // Register the asm backend.
420 
421  // Register the elf streamer.
423 
424  // Register the XCOFF streamer.
426 
427  // Register the object target streamer.
430 
431  // Register the asm target streamer.
433 
434  // Register the MCInstPrinter.
436  }
437 }
llvm::Check::Size
@ Size
Definition: FileCheck.h:76
llvm::MCAssembler::getELFHeaderEFlags
unsigned getELFHeaderEFlags() const
ELF e_header flags.
Definition: MCAssembler.h:276
llvm::ELF::STO_PPC64_LOCAL_BIT
@ STO_PPC64_LOCAL_BIT
Definition: ELF.h:408
llvm::PPCXCOFFMCAsmInfo
Definition: PPCMCAsmInfo.h:29
MCDwarf.h
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:17
llvm::MCSymbol
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:41
PPCELFStreamer.h
createPPCMCInstrAnalysis
static MCInstrAnalysis * createPPCMCInstrAnalysis(const MCInstrInfo *Info)
Definition: PPCMCTargetDesc.cpp:393
T
llvm::MCContext
Context object for machine code objects.
Definition: MCContext.h:74
StringRef.h
llvm::MCSymbolXCOFF::getSymbolTableName
StringRef getSymbolTableName() const
Definition: MCSymbolXCOFF.h:61
MCCodeEmitter.h
llvm::Target
Target - Wrapper for Target specific information.
Definition: TargetRegistry.h:140
llvm::MCAsmInfo
This class is intended to be used as a base class for asm properties and features specific to the tar...
Definition: MCAsmInfo.h:56
ErrorHandling.h
llvm::X86Disassembler::Reg
Reg
All possible values of the reg field in the ModR/M byte.
Definition: X86DisassemblerDecoder.h:462
llvm::TargetRegistry::RegisterAsmTargetStreamer
static void RegisterAsmTargetStreamer(Target &T, Target::AsmTargetStreamerCtorTy Fn)
Definition: TargetRegistry.h:993
llvm::TargetRegistry::RegisterMCInstrAnalysis
static void RegisterMCInstrAnalysis(Target &T, Target::MCInstrAnalysisCtorFnTy Fn)
RegisterMCInstrAnalysis - Register a MCInstrAnalysis implementation for the given target.
Definition: TargetRegistry.h:840
llvm::PPCTargetStreamer::~PPCTargetStreamer
~PPCTargetStreamer() override
llvm::Triple
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
MCAssembler.h
llvm::ELF::EF_PPC64_ABI
@ EF_PPC64_ABI
Definition: ELF.h:403
llvm::Triple::isOSBinFormatXCOFF
bool isOSBinFormatXCOFF() const
Tests whether the OS uses the XCOFF binary format.
Definition: Triple.h:671
llvm::MCAsmInfo::getCodePointerSize
unsigned getCodePointerSize() const
Get the code pointer size in bytes.
Definition: MCAsmInfo.h:548
llvm::SmallPtrSet
SmallPtrSet - This class implements a set which is optimized for holding SmallSize or less elements.
Definition: SmallPtrSet.h:450
PPCMCAsmInfo.h
llvm::MCInst
Instances of this class represent a single low-level machine instruction.
Definition: MCInst.h:184
PPCMCTargetDesc.h
llvm::TargetRegistry::RegisterMCInstPrinter
static void RegisterMCInstPrinter(Target &T, Target::MCInstPrinterCtorTy Fn)
RegisterMCInstPrinter - Register a MCInstPrinter implementation for the given target.
Definition: TargetRegistry.h:947
llvm::MCInst::getNumOperands
unsigned getNumOperands() const
Definition: MCInst.h:208
llvm::createPPCXCOFFStreamer
MCXCOFFStreamer * createPPCXCOFFStreamer(MCContext &Context, std::unique_ptr< MCAsmBackend > MAB, std::unique_ptr< MCObjectWriter > OW, std::unique_ptr< MCCodeEmitter > Emitter)
Definition: PPCXCOFFStreamer.cpp:72
MCELFStreamer.h
llvm::MCSymbolELF
Definition: MCSymbolELF.h:14
Context
LLVMContext & Context
Definition: NVVMIntrRange.cpp:66
PPCInstPrinter.h
FormattedStream.h
llvm::getThePPC64LETarget
Target & getThePPC64LETarget()
Definition: PowerPCTargetInfo.cpp:25
llvm::MCStreamer
Streaming machine code generation interface.
Definition: MCStreamer.h:201
llvm::objcopy::FileFormat::ELF
@ ELF
ELF.h
llvm::MCELFStreamer
Definition: MCELFStreamer.h:31
MCAsmBackend.h
llvm::ModRefInfo::Ref
@ Ref
The access may reference the value stored in memory.
llvm::PPCELFMCAsmInfo
Definition: PPCMCAsmInfo.h:22
llvm::MCAssembler::getContext
MCContext & getContext() const
Definition: MCAssembler.h:321
llvm::PPCInstPrinter
Definition: PPCInstPrinter.h:21
C
(vector float) vec_cmpeq(*A, *B) C
Definition: README_ALTIVEC.txt:86
createPPCMCInstrInfo
static MCInstrInfo * createPPCMCInstrInfo()
Definition: PPCMCTargetDesc.cpp:64
llvm::Log2
unsigned Log2(Align A)
Returns the log2 of the alignment.
Definition: Alignment.h:207
int
Clang compiles this i1 i64 store i64 i64 store i64 i64 store i64 i64 store i64 align Which gets codegen d xmm0 movaps rbp movaps rbp movaps rbp movaps rbp rbp rbp rbp rbp It would be better to have movq s of instead of the movaps s LLVM produces ret int
Definition: README.txt:536
llvm::MCSubtargetInfo::getTargetTriple
const Triple & getTargetTriple() const
Definition: MCSubtargetInfo.h:108
MCSymbolELF.h
MCContext.h
MCInstrInfo.h
llvm::MCOperand::getImm
int64_t getImm() const
Definition: MCInst.h:80
MCSymbol.h
llvm::MCSymbolXCOFF::hasRename
bool hasRename() const
Definition: MCSymbolXCOFF.h:57
llvm::MCInstrAnalysis
Definition: MCInstrAnalysis.h:30
llvm::Triple::ppc64
@ ppc64
Definition: Triple.h:71
MCSubtargetInfo.h
Options
const char LLVMTargetMachineRef LLVMPassBuilderOptionsRef Options
Definition: PassBuilderBindings.cpp:48
llvm::MCTargetStreamer
Target specific streamer interface.
Definition: MCStreamer.h:93
SmallPtrSet.h
Info
Analysis containing CSE Info
Definition: CSEInfo.cpp:27
llvm::MCSymbol::getName
StringRef getName() const
getName - Get the symbol name.
Definition: MCSymbol.h:198
llvm::MCOI::OPERAND_PCREL
@ OPERAND_PCREL
Definition: MCInstrDesc.h:62
llvm::Triple::getArch
ArchType getArch() const
Get the parsed architecture type of this triple.
Definition: Triple.h:337
MCSectionXCOFF.h
llvm::RegisterMCAsmInfoFn
RegisterMCAsmInfoFn - Helper template for registering a target assembly info implementation.
Definition: TargetRegistry.h:1118
llvm::lltok::Kind
Kind
Definition: LLToken.h:18
llvm::MCCFIInstruction
Definition: MCDwarf.h:472
X
static GCMetadataPrinterRegistry::Add< ErlangGCPrinter > X("erlang", "erlang-compatible garbage collector")
llvm::MCELFStreamer::emitValueToAlignment
void emitValueToAlignment(unsigned, int64_t, unsigned, unsigned) override
Emit some number of copies of Value until the byte alignment ByteAlignment is reached.
Definition: MCELFStreamer.cpp:366
createObjectTargetStreamer
static MCTargetStreamer * createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI)
Definition: PPCMCTargetDesc.cpp:355
llvm::Triple::ppc64le
@ ppc64le
Definition: Triple.h:72
createPPCMCInstPrinter
static MCInstPrinter * createPPCMCInstPrinter(const Triple &T, unsigned SyntaxVariant, const MCAsmInfo &MAI, const MCInstrInfo &MII, const MCRegisterInfo &MRI)
Definition: PPCMCTargetDesc.cpp:364
llvm::MCAssembler
Definition: MCAssembler.h:73
llvm::TargetRegistry::RegisterMCAsmBackend
static void RegisterMCAsmBackend(Target &T, Target::MCAsmBackendCtorTy Fn)
RegisterMCAsmBackend - Register a MCAsmBackend implementation for the given target.
Definition: TargetRegistry.h:894
llvm::AMDGPU::Hwreg::Offset
Offset
Definition: SIDefines.h:409
llvm::MCSymbolRefExpr::VariantKind
VariantKind
Definition: MCExpr.h:194
uint64_t
D
static GCRegistry::Add< StatepointGC > D("statepoint-example", "an example strategy for statepoint")
createPPCMCSubtargetInfo
static MCSubtargetInfo * createPPCMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS)
Definition: PPCMCTargetDesc.cpp:81
llvm::MCInstPrinter
This is an instance of a target assembly language printer that converts an MCInst to valid target ass...
Definition: MCInstPrinter.h:43
LLVM_EXTERNAL_VISIBILITY
#define LLVM_EXTERNAL_VISIBILITY
Definition: Compiler.h:126
Addr
uint64_t Addr
Definition: ELFObjHandler.cpp:78
move
compiles ldr LCPI1_0 ldr ldr mov lsr tst moveq r1 ldr LCPI1_1 and r0 bx lr It would be better to do something like to fold the shift into the conditional move
Definition: README.txt:546
MCSymbolXCOFF.h
PowerPCTargetInfo.h
llvm::TargetRegistry::RegisterObjectTargetStreamer
static void RegisterObjectTargetStreamer(Target &T, Target::ObjectTargetStreamerCtorTy Fn)
Definition: TargetRegistry.h:999
MCRegisterInfo.h
llvm::MCAssembler::setELFHeaderEFlags
void setELFHeaderEFlags(unsigned Flags)
Definition: MCAssembler.h:277
llvm::formatted_raw_ostream
formatted_raw_ostream - A raw_ostream that wraps another one and keeps track of line and column posit...
Definition: FormattedStream.h:30
PPCXCOFFStreamer.h
llvm::MCContext::reportError
void reportError(SMLoc L, const Twine &Msg)
Definition: MCContext.cpp:1005
llvm::MCCFIInstruction::cfiDefCfa
static MCCFIInstruction cfiDefCfa(MCSymbol *L, unsigned Register, int Offset)
.cfi_def_cfa defines a rule for computing CFA as: take address from Register and add Offset to it.
Definition: MCDwarf.h:526
llvm::MCAsmInfo::addInitialFrameState
void addInitialFrameState(const MCCFIInstruction &Inst)
Definition: MCAsmInfo.cpp:86
RA
SI optimize exec mask operations pre RA
Definition: SIOptimizeExecMaskingPreRA.cpp:71
llvm::TargetRegistry::RegisterMCSubtargetInfo
static void RegisterMCSubtargetInfo(Target &T, Target::MCSubtargetInfoCtorFnTy Fn)
RegisterMCSubtargetInfo - Register a MCSubtargetInfo implementation for the given target.
Definition: TargetRegistry.h:867
llvm::MCTargetOptions
Definition: MCTargetOptions.h:36
llvm::createPPCMCCodeEmitter
MCCodeEmitter * createPPCMCCodeEmitter(const MCInstrInfo &MCII, MCContext &Ctx)
Definition: PPCMCCodeEmitter.cpp:36
Triple.h
MCInstrAnalysis.h
llvm::createPPCELFStreamer
MCELFStreamer * createPPCELFStreamer(MCContext &Context, std::unique_ptr< MCAsmBackend > MAB, std::unique_ptr< MCObjectWriter > OW, std::unique_ptr< MCCodeEmitter > Emitter)
Definition: PPCELFStreamer.cpp:222
llvm::StringRef
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:58
llvm_unreachable
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:143
S
add sub stmia L5 ldr r0 bl L_printf $stub Instead of a and a wouldn t it be better to do three moves *Return an aggregate type is even return S
Definition: README.txt:210
llvm::MCRegisterInfo
MCRegisterInfo base class - We assume that the target defines a static array of MCRegisterDesc object...
Definition: MCRegisterInfo.h:135
llvm::PPCTargetStreamer::PPCTargetStreamer
PPCTargetStreamer(MCStreamer &S)
Definition: PPCMCTargetDesc.cpp:59
MRI
unsigned const MachineRegisterInfo * MRI
Definition: AArch64AdvSIMDScalarPass.cpp:105
llvm::ELF::STO_PPC64_LOCAL_MASK
@ STO_PPC64_LOCAL_MASK
Definition: ELF.h:409
llvm::getThePPC64Target
Target & getThePPC64Target()
Definition: PowerPCTargetInfo.cpp:21
MCObjectWriter.h
llvm::TargetRegistry::RegisterMCInstrInfo
static void RegisterMCInstrInfo(Target &T, Target::MCInstrInfoCtorFnTy Fn)
RegisterMCInstrInfo - Register a MCInstrInfo implementation for the given target.
Definition: TargetRegistry.h:834
llvm::TargetRegistry::RegisterMCCodeEmitter
static void RegisterMCCodeEmitter(Target &T, Target::MCCodeEmitterCtorTy Fn)
RegisterMCCodeEmitter - Register a MCCodeEmitter implementation for the given target.
Definition: TargetRegistry.h:960
llvm::MCInstrInfo
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:26
llvm::TargetRegistry::RegisterMCRegInfo
static void RegisterMCRegInfo(Target &T, Target::MCRegInfoCtorFnTy Fn)
RegisterMCRegInfo - Register a MCRegisterInfo implementation for the given target.
Definition: TargetRegistry.h:854
llvm::TargetRegistry::RegisterELFStreamer
static void RegisterELFStreamer(Target &T, Target::ELFStreamerCtorTy Fn)
Definition: TargetRegistry.h:972
Casting.h
LLVMInitializePowerPCTargetMC
LLVM_EXTERNAL_VISIBILITY void LLVMInitializePowerPCTargetMC()
Definition: PPCMCTargetDesc.cpp:397
llvm::MCInst::getOpcode
unsigned getOpcode() const
Definition: MCInst.h:198
PPCTargetStreamer.h
llvm::MCSymbolRefExpr::create
static const MCSymbolRefExpr * create(const MCSymbol *Symbol, MCContext &Ctx)
Definition: MCExpr.h:386
llvm::MCSymbolRefExpr::getVariantKindName
static StringRef getVariantKindName(VariantKind Kind)
Definition: MCExpr.cpp:221
llvm::TargetRegistry::RegisterXCOFFStreamer
static void RegisterXCOFFStreamer(Target &T, Target::XCOFFStreamerCtorTy Fn)
Definition: TargetRegistry.h:984
llvm::getThePPC32LETarget
Target & getThePPC32LETarget()
Definition: PowerPCTargetInfo.cpp:17
llvm::ARMBuildAttrs::Symbol
@ Symbol
Definition: ARMBuildAttributes.h:83
createPPCMCRegisterInfo
static MCRegisterInfo * createPPCMCRegisterInfo(const Triple &TT)
Definition: PPCMCTargetDesc.cpp:70
CodeGen.h
createPPCMCAsmInfo
static MCAsmInfo * createPPCMCAsmInfo(const MCRegisterInfo &MRI, const Triple &TheTriple, const MCTargetOptions &Options)
Definition: PPCMCTargetDesc.cpp:96
llvm::MCExpr::print
void print(raw_ostream &OS, const MCAsmInfo *MAI, bool InParens=false) const
Definition: MCExpr.cpp:41
llvm::MCSymbolXCOFF
Definition: MCSymbolXCOFF.h:20
llvm::createPPCAsmBackend
MCAsmBackend * createPPCAsmBackend(const Target &T, const MCSubtargetInfo &STI, const MCRegisterInfo &MRI, const MCTargetOptions &Options)
Definition: PPCAsmBackend.cpp:274
MCStreamer.h
llvm::MCInst::getOperand
const MCOperand & getOperand(unsigned i) const
Definition: MCInst.h:206
createAsmTargetStreamer
static MCTargetStreamer * createAsmTargetStreamer(MCStreamer &S, formatted_raw_ostream &OS, MCInstPrinter *InstPrint, bool isVerboseAsm)
Definition: PPCMCTargetDesc.cpp:347
raw_ostream.h
llvm::X86AS::FS
@ FS
Definition: X86.h:188
TargetRegistry.h
MCExpr.h
llvm::PPCTargetStreamer
Definition: PPCTargetStreamer.h:22
llvm::MCSubtargetInfo
Generic base class for all target subtargets.
Definition: MCSubtargetInfo.h:76
llvm::Value
LLVM Value Representation.
Definition: Value.h:74
llvm::MCExpr
Base class for the full range of assembler expressions which are needed for parsing.
Definition: MCExpr.h:35
Other
Optional< std::vector< StOtherPiece > > Other
Definition: ELFYAML.cpp:1225
llvm::MCExpr::getLoc
SMLoc getLoc() const
Definition: MCExpr.h:82
llvm::getThePPC32Target
Target & getThePPC32Target()
Definition: PowerPCTargetInfo.cpp:13