LLVM  7.0.0svn
PPCAsmParser.cpp
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1 //===-- PPCAsmParser.cpp - Parse PowerPC asm to MCInst instructions -------===//
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 #include "MCTargetDesc/PPCMCExpr.h"
12 #include "PPCTargetStreamer.h"
13 #include "llvm/ADT/STLExtras.h"
14 #include "llvm/ADT/StringSwitch.h"
15 #include "llvm/ADT/Twine.h"
16 #include "llvm/MC/MCContext.h"
17 #include "llvm/MC/MCExpr.h"
18 #include "llvm/MC/MCInst.h"
19 #include "llvm/MC/MCInstrInfo.h"
24 #include "llvm/MC/MCRegisterInfo.h"
25 #include "llvm/MC/MCStreamer.h"
27 #include "llvm/MC/MCSymbolELF.h"
28 #include "llvm/Support/SourceMgr.h"
31 
32 using namespace llvm;
33 
34 static const MCPhysReg RRegs[32] = {
35  PPC::R0, PPC::R1, PPC::R2, PPC::R3,
36  PPC::R4, PPC::R5, PPC::R6, PPC::R7,
37  PPC::R8, PPC::R9, PPC::R10, PPC::R11,
38  PPC::R12, PPC::R13, PPC::R14, PPC::R15,
39  PPC::R16, PPC::R17, PPC::R18, PPC::R19,
40  PPC::R20, PPC::R21, PPC::R22, PPC::R23,
41  PPC::R24, PPC::R25, PPC::R26, PPC::R27,
42  PPC::R28, PPC::R29, PPC::R30, PPC::R31
43 };
44 static const MCPhysReg RRegsNoR0[32] = {
45  PPC::ZERO,
46  PPC::R1, PPC::R2, PPC::R3,
47  PPC::R4, PPC::R5, PPC::R6, PPC::R7,
48  PPC::R8, PPC::R9, PPC::R10, PPC::R11,
49  PPC::R12, PPC::R13, PPC::R14, PPC::R15,
50  PPC::R16, PPC::R17, PPC::R18, PPC::R19,
51  PPC::R20, PPC::R21, PPC::R22, PPC::R23,
52  PPC::R24, PPC::R25, PPC::R26, PPC::R27,
53  PPC::R28, PPC::R29, PPC::R30, PPC::R31
54 };
55 static const MCPhysReg XRegs[32] = {
56  PPC::X0, PPC::X1, PPC::X2, PPC::X3,
57  PPC::X4, PPC::X5, PPC::X6, PPC::X7,
58  PPC::X8, PPC::X9, PPC::X10, PPC::X11,
59  PPC::X12, PPC::X13, PPC::X14, PPC::X15,
60  PPC::X16, PPC::X17, PPC::X18, PPC::X19,
61  PPC::X20, PPC::X21, PPC::X22, PPC::X23,
62  PPC::X24, PPC::X25, PPC::X26, PPC::X27,
63  PPC::X28, PPC::X29, PPC::X30, PPC::X31
64 };
65 static const MCPhysReg XRegsNoX0[32] = {
66  PPC::ZERO8,
67  PPC::X1, PPC::X2, PPC::X3,
68  PPC::X4, PPC::X5, PPC::X6, PPC::X7,
69  PPC::X8, PPC::X9, PPC::X10, PPC::X11,
70  PPC::X12, PPC::X13, PPC::X14, PPC::X15,
71  PPC::X16, PPC::X17, PPC::X18, PPC::X19,
72  PPC::X20, PPC::X21, PPC::X22, PPC::X23,
73  PPC::X24, PPC::X25, PPC::X26, PPC::X27,
74  PPC::X28, PPC::X29, PPC::X30, PPC::X31
75 };
76 static const MCPhysReg FRegs[32] = {
77  PPC::F0, PPC::F1, PPC::F2, PPC::F3,
78  PPC::F4, PPC::F5, PPC::F6, PPC::F7,
79  PPC::F8, PPC::F9, PPC::F10, PPC::F11,
80  PPC::F12, PPC::F13, PPC::F14, PPC::F15,
81  PPC::F16, PPC::F17, PPC::F18, PPC::F19,
82  PPC::F20, PPC::F21, PPC::F22, PPC::F23,
83  PPC::F24, PPC::F25, PPC::F26, PPC::F27,
84  PPC::F28, PPC::F29, PPC::F30, PPC::F31
85 };
86 static const MCPhysReg SPERegs[32] = {
87  PPC::S0, PPC::S1, PPC::S2, PPC::S3,
88  PPC::S4, PPC::S5, PPC::S6, PPC::S7,
89  PPC::S8, PPC::S9, PPC::S10, PPC::S11,
90  PPC::S12, PPC::S13, PPC::S14, PPC::S15,
91  PPC::S16, PPC::S17, PPC::S18, PPC::S19,
92  PPC::S20, PPC::S21, PPC::S22, PPC::S23,
93  PPC::S24, PPC::S25, PPC::S26, PPC::S27,
94  PPC::S28, PPC::S29, PPC::S30, PPC::S31
95 };
96 static const MCPhysReg VFRegs[32] = {
97  PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
98  PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
99  PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
100  PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
101  PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
102  PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
103  PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
104  PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
105 };
106 static const MCPhysReg VRegs[32] = {
107  PPC::V0, PPC::V1, PPC::V2, PPC::V3,
108  PPC::V4, PPC::V5, PPC::V6, PPC::V7,
109  PPC::V8, PPC::V9, PPC::V10, PPC::V11,
110  PPC::V12, PPC::V13, PPC::V14, PPC::V15,
111  PPC::V16, PPC::V17, PPC::V18, PPC::V19,
112  PPC::V20, PPC::V21, PPC::V22, PPC::V23,
113  PPC::V24, PPC::V25, PPC::V26, PPC::V27,
114  PPC::V28, PPC::V29, PPC::V30, PPC::V31
115 };
116 static const MCPhysReg VSRegs[64] = {
117  PPC::VSL0, PPC::VSL1, PPC::VSL2, PPC::VSL3,
118  PPC::VSL4, PPC::VSL5, PPC::VSL6, PPC::VSL7,
119  PPC::VSL8, PPC::VSL9, PPC::VSL10, PPC::VSL11,
120  PPC::VSL12, PPC::VSL13, PPC::VSL14, PPC::VSL15,
121  PPC::VSL16, PPC::VSL17, PPC::VSL18, PPC::VSL19,
122  PPC::VSL20, PPC::VSL21, PPC::VSL22, PPC::VSL23,
123  PPC::VSL24, PPC::VSL25, PPC::VSL26, PPC::VSL27,
124  PPC::VSL28, PPC::VSL29, PPC::VSL30, PPC::VSL31,
125 
126  PPC::V0, PPC::V1, PPC::V2, PPC::V3,
127  PPC::V4, PPC::V5, PPC::V6, PPC::V7,
128  PPC::V8, PPC::V9, PPC::V10, PPC::V11,
129  PPC::V12, PPC::V13, PPC::V14, PPC::V15,
130  PPC::V16, PPC::V17, PPC::V18, PPC::V19,
131  PPC::V20, PPC::V21, PPC::V22, PPC::V23,
132  PPC::V24, PPC::V25, PPC::V26, PPC::V27,
133  PPC::V28, PPC::V29, PPC::V30, PPC::V31
134 };
135 static const MCPhysReg VSFRegs[64] = {
136  PPC::F0, PPC::F1, PPC::F2, PPC::F3,
137  PPC::F4, PPC::F5, PPC::F6, PPC::F7,
138  PPC::F8, PPC::F9, PPC::F10, PPC::F11,
139  PPC::F12, PPC::F13, PPC::F14, PPC::F15,
140  PPC::F16, PPC::F17, PPC::F18, PPC::F19,
141  PPC::F20, PPC::F21, PPC::F22, PPC::F23,
142  PPC::F24, PPC::F25, PPC::F26, PPC::F27,
143  PPC::F28, PPC::F29, PPC::F30, PPC::F31,
144 
145  PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
146  PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
147  PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
148  PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
149  PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
150  PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
151  PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
152  PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
153 };
154 static const MCPhysReg VSSRegs[64] = {
155  PPC::F0, PPC::F1, PPC::F2, PPC::F3,
156  PPC::F4, PPC::F5, PPC::F6, PPC::F7,
157  PPC::F8, PPC::F9, PPC::F10, PPC::F11,
158  PPC::F12, PPC::F13, PPC::F14, PPC::F15,
159  PPC::F16, PPC::F17, PPC::F18, PPC::F19,
160  PPC::F20, PPC::F21, PPC::F22, PPC::F23,
161  PPC::F24, PPC::F25, PPC::F26, PPC::F27,
162  PPC::F28, PPC::F29, PPC::F30, PPC::F31,
163 
164  PPC::VF0, PPC::VF1, PPC::VF2, PPC::VF3,
165  PPC::VF4, PPC::VF5, PPC::VF6, PPC::VF7,
166  PPC::VF8, PPC::VF9, PPC::VF10, PPC::VF11,
167  PPC::VF12, PPC::VF13, PPC::VF14, PPC::VF15,
168  PPC::VF16, PPC::VF17, PPC::VF18, PPC::VF19,
169  PPC::VF20, PPC::VF21, PPC::VF22, PPC::VF23,
170  PPC::VF24, PPC::VF25, PPC::VF26, PPC::VF27,
171  PPC::VF28, PPC::VF29, PPC::VF30, PPC::VF31
172 };
173 static unsigned QFRegs[32] = {
174  PPC::QF0, PPC::QF1, PPC::QF2, PPC::QF3,
175  PPC::QF4, PPC::QF5, PPC::QF6, PPC::QF7,
176  PPC::QF8, PPC::QF9, PPC::QF10, PPC::QF11,
177  PPC::QF12, PPC::QF13, PPC::QF14, PPC::QF15,
178  PPC::QF16, PPC::QF17, PPC::QF18, PPC::QF19,
179  PPC::QF20, PPC::QF21, PPC::QF22, PPC::QF23,
180  PPC::QF24, PPC::QF25, PPC::QF26, PPC::QF27,
181  PPC::QF28, PPC::QF29, PPC::QF30, PPC::QF31
182 };
183 static const MCPhysReg CRBITRegs[32] = {
184  PPC::CR0LT, PPC::CR0GT, PPC::CR0EQ, PPC::CR0UN,
185  PPC::CR1LT, PPC::CR1GT, PPC::CR1EQ, PPC::CR1UN,
186  PPC::CR2LT, PPC::CR2GT, PPC::CR2EQ, PPC::CR2UN,
187  PPC::CR3LT, PPC::CR3GT, PPC::CR3EQ, PPC::CR3UN,
188  PPC::CR4LT, PPC::CR4GT, PPC::CR4EQ, PPC::CR4UN,
189  PPC::CR5LT, PPC::CR5GT, PPC::CR5EQ, PPC::CR5UN,
190  PPC::CR6LT, PPC::CR6GT, PPC::CR6EQ, PPC::CR6UN,
191  PPC::CR7LT, PPC::CR7GT, PPC::CR7EQ, PPC::CR7UN
192 };
193 static const MCPhysReg CRRegs[8] = {
194  PPC::CR0, PPC::CR1, PPC::CR2, PPC::CR3,
195  PPC::CR4, PPC::CR5, PPC::CR6, PPC::CR7
196 };
197 
198 // Evaluate an expression containing condition register
199 // or condition register field symbols. Returns positive
200 // value on success, or -1 on error.
201 static int64_t
203  switch (E->getKind()) {
204  case MCExpr::Target:
205  return -1;
206 
207  case MCExpr::Constant: {
208  int64_t Res = cast<MCConstantExpr>(E)->getValue();
209  return Res < 0 ? -1 : Res;
210  }
211 
212  case MCExpr::SymbolRef: {
213  const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
214  StringRef Name = SRE->getSymbol().getName();
215 
216  if (Name == "lt") return 0;
217  if (Name == "gt") return 1;
218  if (Name == "eq") return 2;
219  if (Name == "so") return 3;
220  if (Name == "un") return 3;
221 
222  if (Name == "cr0") return 0;
223  if (Name == "cr1") return 1;
224  if (Name == "cr2") return 2;
225  if (Name == "cr3") return 3;
226  if (Name == "cr4") return 4;
227  if (Name == "cr5") return 5;
228  if (Name == "cr6") return 6;
229  if (Name == "cr7") return 7;
230 
231  return -1;
232  }
233 
234  case MCExpr::Unary:
235  return -1;
236 
237  case MCExpr::Binary: {
238  const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
239  int64_t LHSVal = EvaluateCRExpr(BE->getLHS());
240  int64_t RHSVal = EvaluateCRExpr(BE->getRHS());
241  int64_t Res;
242 
243  if (LHSVal < 0 || RHSVal < 0)
244  return -1;
245 
246  switch (BE->getOpcode()) {
247  default: return -1;
248  case MCBinaryExpr::Add: Res = LHSVal + RHSVal; break;
249  case MCBinaryExpr::Mul: Res = LHSVal * RHSVal; break;
250  }
251 
252  return Res < 0 ? -1 : Res;
253  }
254  }
255 
256  llvm_unreachable("Invalid expression kind!");
257 }
258 
259 namespace {
260 
261 struct PPCOperand;
262 
263 class PPCAsmParser : public MCTargetAsmParser {
264  bool IsPPC64;
265  bool IsDarwin;
266 
267  void Warning(SMLoc L, const Twine &Msg) { getParser().Warning(L, Msg); }
268 
269  bool isPPC64() const { return IsPPC64; }
270  bool isDarwin() const { return IsDarwin; }
271 
272  bool MatchRegisterName(unsigned &RegNo, int64_t &IntVal);
273 
274  bool ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) override;
275 
276  const MCExpr *ExtractModifierFromExpr(const MCExpr *E,
277  PPCMCExpr::VariantKind &Variant);
278  const MCExpr *FixupVariantKind(const MCExpr *E);
279  bool ParseExpression(const MCExpr *&EVal);
280  bool ParseDarwinExpression(const MCExpr *&EVal);
281 
282  bool ParseOperand(OperandVector &Operands);
283 
284  bool ParseDirectiveWord(unsigned Size, AsmToken ID);
285  bool ParseDirectiveTC(unsigned Size, AsmToken ID);
286  bool ParseDirectiveMachine(SMLoc L);
287  bool ParseDarwinDirectiveMachine(SMLoc L);
288  bool ParseDirectiveAbiVersion(SMLoc L);
289  bool ParseDirectiveLocalEntry(SMLoc L);
290 
291  bool MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
292  OperandVector &Operands, MCStreamer &Out,
293  uint64_t &ErrorInfo,
294  bool MatchingInlineAsm) override;
295 
296  void ProcessInstruction(MCInst &Inst, const OperandVector &Ops);
297 
298  /// @name Auto-generated Match Functions
299  /// {
300 
301 #define GET_ASSEMBLER_HEADER
302 #include "PPCGenAsmMatcher.inc"
303 
304  /// }
305 
306 
307 public:
308  PPCAsmParser(const MCSubtargetInfo &STI, MCAsmParser &,
309  const MCInstrInfo &MII, const MCTargetOptions &Options)
310  : MCTargetAsmParser(Options, STI, MII) {
311  // Check for 64-bit vs. 32-bit pointer mode.
312  const Triple &TheTriple = STI.getTargetTriple();
313  IsPPC64 = (TheTriple.getArch() == Triple::ppc64 ||
314  TheTriple.getArch() == Triple::ppc64le);
315  IsDarwin = TheTriple.isMacOSX();
316  // Initialize the set of available features.
317  setAvailableFeatures(ComputeAvailableFeatures(STI.getFeatureBits()));
318  }
319 
320  bool ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
321  SMLoc NameLoc, OperandVector &Operands) override;
322 
323  bool ParseDirective(AsmToken DirectiveID) override;
324 
325  unsigned validateTargetOperandClass(MCParsedAsmOperand &Op,
326  unsigned Kind) override;
327 
328  const MCExpr *applyModifierToExpr(const MCExpr *E,
330  MCContext &Ctx) override;
331 };
332 
333 /// PPCOperand - Instances of this class represent a parsed PowerPC machine
334 /// instruction.
335 struct PPCOperand : public MCParsedAsmOperand {
336  enum KindTy {
337  Token,
338  Immediate,
339  ContextImmediate,
340  Expression,
341  TLSRegister
342  } Kind;
343 
344  SMLoc StartLoc, EndLoc;
345  bool IsPPC64;
346 
347  struct TokOp {
348  const char *Data;
349  unsigned Length;
350  };
351 
352  struct ImmOp {
353  int64_t Val;
354  };
355 
356  struct ExprOp {
357  const MCExpr *Val;
358  int64_t CRVal; // Cached result of EvaluateCRExpr(Val)
359  };
360 
361  struct TLSRegOp {
362  const MCSymbolRefExpr *Sym;
363  };
364 
365  union {
366  struct TokOp Tok;
367  struct ImmOp Imm;
368  struct ExprOp Expr;
369  struct TLSRegOp TLSReg;
370  };
371 
372  PPCOperand(KindTy K) : MCParsedAsmOperand(), Kind(K) {}
373 public:
374  PPCOperand(const PPCOperand &o) : MCParsedAsmOperand() {
375  Kind = o.Kind;
376  StartLoc = o.StartLoc;
377  EndLoc = o.EndLoc;
378  IsPPC64 = o.IsPPC64;
379  switch (Kind) {
380  case Token:
381  Tok = o.Tok;
382  break;
383  case Immediate:
384  case ContextImmediate:
385  Imm = o.Imm;
386  break;
387  case Expression:
388  Expr = o.Expr;
389  break;
390  case TLSRegister:
391  TLSReg = o.TLSReg;
392  break;
393  }
394  }
395 
396  // Disable use of sized deallocation due to overallocation of PPCOperand
397  // objects in CreateTokenWithStringCopy.
398  void operator delete(void *p) { ::operator delete(p); }
399 
400  /// getStartLoc - Get the location of the first token of this operand.
401  SMLoc getStartLoc() const override { return StartLoc; }
402 
403  /// getEndLoc - Get the location of the last token of this operand.
404  SMLoc getEndLoc() const override { return EndLoc; }
405 
406  /// getLocRange - Get the range between the first and last token of this
407  /// operand.
408  SMRange getLocRange() const { return SMRange(StartLoc, EndLoc); }
409 
410  /// isPPC64 - True if this operand is for an instruction in 64-bit mode.
411  bool isPPC64() const { return IsPPC64; }
412 
413  int64_t getImm() const {
414  assert(Kind == Immediate && "Invalid access!");
415  return Imm.Val;
416  }
417  int64_t getImmS16Context() const {
418  assert((Kind == Immediate || Kind == ContextImmediate) &&
419  "Invalid access!");
420  if (Kind == Immediate)
421  return Imm.Val;
422  return static_cast<int16_t>(Imm.Val);
423  }
424  int64_t getImmU16Context() const {
425  assert((Kind == Immediate || Kind == ContextImmediate) &&
426  "Invalid access!");
427  return Imm.Val;
428  }
429 
430  const MCExpr *getExpr() const {
431  assert(Kind == Expression && "Invalid access!");
432  return Expr.Val;
433  }
434 
435  int64_t getExprCRVal() const {
436  assert(Kind == Expression && "Invalid access!");
437  return Expr.CRVal;
438  }
439 
440  const MCExpr *getTLSReg() const {
441  assert(Kind == TLSRegister && "Invalid access!");
442  return TLSReg.Sym;
443  }
444 
445  unsigned getReg() const override {
446  assert(isRegNumber() && "Invalid access!");
447  return (unsigned) Imm.Val;
448  }
449 
450  unsigned getVSReg() const {
451  assert(isVSRegNumber() && "Invalid access!");
452  return (unsigned) Imm.Val;
453  }
454 
455  unsigned getCCReg() const {
456  assert(isCCRegNumber() && "Invalid access!");
457  return (unsigned) (Kind == Immediate ? Imm.Val : Expr.CRVal);
458  }
459 
460  unsigned getCRBit() const {
461  assert(isCRBitNumber() && "Invalid access!");
462  return (unsigned) (Kind == Immediate ? Imm.Val : Expr.CRVal);
463  }
464 
465  unsigned getCRBitMask() const {
466  assert(isCRBitMask() && "Invalid access!");
467  return 7 - countTrailingZeros<uint64_t>(Imm.Val);
468  }
469 
470  bool isToken() const override { return Kind == Token; }
471  bool isImm() const override {
472  return Kind == Immediate || Kind == Expression;
473  }
474  bool isU1Imm() const { return Kind == Immediate && isUInt<1>(getImm()); }
475  bool isU2Imm() const { return Kind == Immediate && isUInt<2>(getImm()); }
476  bool isU3Imm() const { return Kind == Immediate && isUInt<3>(getImm()); }
477  bool isU4Imm() const { return Kind == Immediate && isUInt<4>(getImm()); }
478  bool isU5Imm() const { return Kind == Immediate && isUInt<5>(getImm()); }
479  bool isS5Imm() const { return Kind == Immediate && isInt<5>(getImm()); }
480  bool isU6Imm() const { return Kind == Immediate && isUInt<6>(getImm()); }
481  bool isU6ImmX2() const { return Kind == Immediate &&
482  isUInt<6>(getImm()) &&
483  (getImm() & 1) == 0; }
484  bool isU7Imm() const { return Kind == Immediate && isUInt<7>(getImm()); }
485  bool isU7ImmX4() const { return Kind == Immediate &&
486  isUInt<7>(getImm()) &&
487  (getImm() & 3) == 0; }
488  bool isU8Imm() const { return Kind == Immediate && isUInt<8>(getImm()); }
489  bool isU8ImmX8() const { return Kind == Immediate &&
490  isUInt<8>(getImm()) &&
491  (getImm() & 7) == 0; }
492 
493  bool isU10Imm() const { return Kind == Immediate && isUInt<10>(getImm()); }
494  bool isU12Imm() const { return Kind == Immediate && isUInt<12>(getImm()); }
495  bool isU16Imm() const {
496  switch (Kind) {
497  case Expression:
498  return true;
499  case Immediate:
500  case ContextImmediate:
501  return isUInt<16>(getImmU16Context());
502  default:
503  return false;
504  }
505  }
506  bool isS16Imm() const {
507  switch (Kind) {
508  case Expression:
509  return true;
510  case Immediate:
511  case ContextImmediate:
512  return isInt<16>(getImmS16Context());
513  default:
514  return false;
515  }
516  }
517  bool isS16ImmX4() const { return Kind == Expression ||
518  (Kind == Immediate && isInt<16>(getImm()) &&
519  (getImm() & 3) == 0); }
520  bool isS16ImmX16() const { return Kind == Expression ||
521  (Kind == Immediate && isInt<16>(getImm()) &&
522  (getImm() & 15) == 0); }
523  bool isS17Imm() const {
524  switch (Kind) {
525  case Expression:
526  return true;
527  case Immediate:
528  case ContextImmediate:
529  return isInt<17>(getImmS16Context());
530  default:
531  return false;
532  }
533  }
534  bool isTLSReg() const { return Kind == TLSRegister; }
535  bool isDirectBr() const {
536  if (Kind == Expression)
537  return true;
538  if (Kind != Immediate)
539  return false;
540  // Operand must be 64-bit aligned, signed 27-bit immediate.
541  if ((getImm() & 3) != 0)
542  return false;
543  if (isInt<26>(getImm()))
544  return true;
545  if (!IsPPC64) {
546  // In 32-bit mode, large 32-bit quantities wrap around.
547  if (isUInt<32>(getImm()) && isInt<26>(static_cast<int32_t>(getImm())))
548  return true;
549  }
550  return false;
551  }
552  bool isCondBr() const { return Kind == Expression ||
553  (Kind == Immediate && isInt<16>(getImm()) &&
554  (getImm() & 3) == 0); }
555  bool isRegNumber() const { return Kind == Immediate && isUInt<5>(getImm()); }
556  bool isVSRegNumber() const {
557  return Kind == Immediate && isUInt<6>(getImm());
558  }
559  bool isCCRegNumber() const { return (Kind == Expression
560  && isUInt<3>(getExprCRVal())) ||
561  (Kind == Immediate
562  && isUInt<3>(getImm())); }
563  bool isCRBitNumber() const { return (Kind == Expression
564  && isUInt<5>(getExprCRVal())) ||
565  (Kind == Immediate
566  && isUInt<5>(getImm())); }
567  bool isCRBitMask() const { return Kind == Immediate && isUInt<8>(getImm()) &&
568  isPowerOf2_32(getImm()); }
569  bool isATBitsAsHint() const { return false; }
570  bool isMem() const override { return false; }
571  bool isReg() const override { return false; }
572 
573  void addRegOperands(MCInst &Inst, unsigned N) const {
574  llvm_unreachable("addRegOperands");
575  }
576 
577  void addRegGPRCOperands(MCInst &Inst, unsigned N) const {
578  assert(N == 1 && "Invalid number of operands!");
580  }
581 
582  void addRegGPRCNoR0Operands(MCInst &Inst, unsigned N) const {
583  assert(N == 1 && "Invalid number of operands!");
585  }
586 
587  void addRegG8RCOperands(MCInst &Inst, unsigned N) const {
588  assert(N == 1 && "Invalid number of operands!");
590  }
591 
592  void addRegG8RCNoX0Operands(MCInst &Inst, unsigned N) const {
593  assert(N == 1 && "Invalid number of operands!");
595  }
596 
597  void addRegGxRCOperands(MCInst &Inst, unsigned N) const {
598  if (isPPC64())
599  addRegG8RCOperands(Inst, N);
600  else
601  addRegGPRCOperands(Inst, N);
602  }
603 
604  void addRegGxRCNoR0Operands(MCInst &Inst, unsigned N) const {
605  if (isPPC64())
606  addRegG8RCNoX0Operands(Inst, N);
607  else
608  addRegGPRCNoR0Operands(Inst, N);
609  }
610 
611  void addRegF4RCOperands(MCInst &Inst, unsigned N) const {
612  assert(N == 1 && "Invalid number of operands!");
614  }
615 
616  void addRegF8RCOperands(MCInst &Inst, unsigned N) const {
617  assert(N == 1 && "Invalid number of operands!");
619  }
620 
621  void addRegVFRCOperands(MCInst &Inst, unsigned N) const {
622  assert(N == 1 && "Invalid number of operands!");
624  }
625 
626  void addRegVRRCOperands(MCInst &Inst, unsigned N) const {
627  assert(N == 1 && "Invalid number of operands!");
629  }
630 
631  void addRegVSRCOperands(MCInst &Inst, unsigned N) const {
632  assert(N == 1 && "Invalid number of operands!");
633  Inst.addOperand(MCOperand::createReg(VSRegs[getVSReg()]));
634  }
635 
636  void addRegVSFRCOperands(MCInst &Inst, unsigned N) const {
637  assert(N == 1 && "Invalid number of operands!");
638  Inst.addOperand(MCOperand::createReg(VSFRegs[getVSReg()]));
639  }
640 
641  void addRegVSSRCOperands(MCInst &Inst, unsigned N) const {
642  assert(N == 1 && "Invalid number of operands!");
643  Inst.addOperand(MCOperand::createReg(VSSRegs[getVSReg()]));
644  }
645 
646  void addRegQFRCOperands(MCInst &Inst, unsigned N) const {
647  assert(N == 1 && "Invalid number of operands!");
648  Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
649  }
650 
651  void addRegQSRCOperands(MCInst &Inst, unsigned N) const {
652  assert(N == 1 && "Invalid number of operands!");
653  Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
654  }
655 
656  void addRegQBRCOperands(MCInst &Inst, unsigned N) const {
657  assert(N == 1 && "Invalid number of operands!");
658  Inst.addOperand(MCOperand::createReg(QFRegs[getReg()]));
659  }
660 
661  void addRegSPE4RCOperands(MCInst &Inst, unsigned N) const {
662  assert(N == 1 && "Invalid number of operands!");
664  }
665 
666  void addRegSPERCOperands(MCInst &Inst, unsigned N) const {
667  assert(N == 1 && "Invalid number of operands!");
669  }
670 
671  void addRegCRBITRCOperands(MCInst &Inst, unsigned N) const {
672  assert(N == 1 && "Invalid number of operands!");
673  Inst.addOperand(MCOperand::createReg(CRBITRegs[getCRBit()]));
674  }
675 
676  void addRegCRRCOperands(MCInst &Inst, unsigned N) const {
677  assert(N == 1 && "Invalid number of operands!");
678  Inst.addOperand(MCOperand::createReg(CRRegs[getCCReg()]));
679  }
680 
681  void addCRBitMaskOperands(MCInst &Inst, unsigned N) const {
682  assert(N == 1 && "Invalid number of operands!");
683  Inst.addOperand(MCOperand::createReg(CRRegs[getCRBitMask()]));
684  }
685 
686  void addImmOperands(MCInst &Inst, unsigned N) const {
687  assert(N == 1 && "Invalid number of operands!");
688  if (Kind == Immediate)
689  Inst.addOperand(MCOperand::createImm(getImm()));
690  else
692  }
693 
694  void addS16ImmOperands(MCInst &Inst, unsigned N) const {
695  assert(N == 1 && "Invalid number of operands!");
696  switch (Kind) {
697  case Immediate:
698  Inst.addOperand(MCOperand::createImm(getImm()));
699  break;
700  case ContextImmediate:
701  Inst.addOperand(MCOperand::createImm(getImmS16Context()));
702  break;
703  default:
705  break;
706  }
707  }
708 
709  void addU16ImmOperands(MCInst &Inst, unsigned N) const {
710  assert(N == 1 && "Invalid number of operands!");
711  switch (Kind) {
712  case Immediate:
713  Inst.addOperand(MCOperand::createImm(getImm()));
714  break;
715  case ContextImmediate:
716  Inst.addOperand(MCOperand::createImm(getImmU16Context()));
717  break;
718  default:
720  break;
721  }
722  }
723 
724  void addBranchTargetOperands(MCInst &Inst, unsigned N) const {
725  assert(N == 1 && "Invalid number of operands!");
726  if (Kind == Immediate)
727  Inst.addOperand(MCOperand::createImm(getImm() / 4));
728  else
730  }
731 
732  void addTLSRegOperands(MCInst &Inst, unsigned N) const {
733  assert(N == 1 && "Invalid number of operands!");
734  Inst.addOperand(MCOperand::createExpr(getTLSReg()));
735  }
736 
737  StringRef getToken() const {
738  assert(Kind == Token && "Invalid access!");
739  return StringRef(Tok.Data, Tok.Length);
740  }
741 
742  void print(raw_ostream &OS) const override;
743 
744  static std::unique_ptr<PPCOperand> CreateToken(StringRef Str, SMLoc S,
745  bool IsPPC64) {
746  auto Op = make_unique<PPCOperand>(Token);
747  Op->Tok.Data = Str.data();
748  Op->Tok.Length = Str.size();
749  Op->StartLoc = S;
750  Op->EndLoc = S;
751  Op->IsPPC64 = IsPPC64;
752  return Op;
753  }
754 
755  static std::unique_ptr<PPCOperand>
756  CreateTokenWithStringCopy(StringRef Str, SMLoc S, bool IsPPC64) {
757  // Allocate extra memory for the string and copy it.
758  // FIXME: This is incorrect, Operands are owned by unique_ptr with a default
759  // deleter which will destroy them by simply using "delete", not correctly
760  // calling operator delete on this extra memory after calling the dtor
761  // explicitly.
762  void *Mem = ::operator new(sizeof(PPCOperand) + Str.size());
763  std::unique_ptr<PPCOperand> Op(new (Mem) PPCOperand(Token));
764  Op->Tok.Data = reinterpret_cast<const char *>(Op.get() + 1);
765  Op->Tok.Length = Str.size();
766  std::memcpy(const_cast<char *>(Op->Tok.Data), Str.data(), Str.size());
767  Op->StartLoc = S;
768  Op->EndLoc = S;
769  Op->IsPPC64 = IsPPC64;
770  return Op;
771  }
772 
773  static std::unique_ptr<PPCOperand> CreateImm(int64_t Val, SMLoc S, SMLoc E,
774  bool IsPPC64) {
775  auto Op = make_unique<PPCOperand>(Immediate);
776  Op->Imm.Val = Val;
777  Op->StartLoc = S;
778  Op->EndLoc = E;
779  Op->IsPPC64 = IsPPC64;
780  return Op;
781  }
782 
783  static std::unique_ptr<PPCOperand> CreateExpr(const MCExpr *Val, SMLoc S,
784  SMLoc E, bool IsPPC64) {
785  auto Op = make_unique<PPCOperand>(Expression);
786  Op->Expr.Val = Val;
787  Op->Expr.CRVal = EvaluateCRExpr(Val);
788  Op->StartLoc = S;
789  Op->EndLoc = E;
790  Op->IsPPC64 = IsPPC64;
791  return Op;
792  }
793 
794  static std::unique_ptr<PPCOperand>
795  CreateTLSReg(const MCSymbolRefExpr *Sym, SMLoc S, SMLoc E, bool IsPPC64) {
796  auto Op = make_unique<PPCOperand>(TLSRegister);
797  Op->TLSReg.Sym = Sym;
798  Op->StartLoc = S;
799  Op->EndLoc = E;
800  Op->IsPPC64 = IsPPC64;
801  return Op;
802  }
803 
804  static std::unique_ptr<PPCOperand>
805  CreateContextImm(int64_t Val, SMLoc S, SMLoc E, bool IsPPC64) {
806  auto Op = make_unique<PPCOperand>(ContextImmediate);
807  Op->Imm.Val = Val;
808  Op->StartLoc = S;
809  Op->EndLoc = E;
810  Op->IsPPC64 = IsPPC64;
811  return Op;
812  }
813 
814  static std::unique_ptr<PPCOperand>
815  CreateFromMCExpr(const MCExpr *Val, SMLoc S, SMLoc E, bool IsPPC64) {
816  if (const MCConstantExpr *CE = dyn_cast<MCConstantExpr>(Val))
817  return CreateImm(CE->getValue(), S, E, IsPPC64);
818 
819  if (const MCSymbolRefExpr *SRE = dyn_cast<MCSymbolRefExpr>(Val))
820  if (SRE->getKind() == MCSymbolRefExpr::VK_PPC_TLS)
821  return CreateTLSReg(SRE, S, E, IsPPC64);
822 
823  if (const PPCMCExpr *TE = dyn_cast<PPCMCExpr>(Val)) {
824  int64_t Res;
825  if (TE->evaluateAsConstant(Res))
826  return CreateContextImm(Res, S, E, IsPPC64);
827  }
828 
829  return CreateExpr(Val, S, E, IsPPC64);
830  }
831 };
832 
833 } // end anonymous namespace.
834 
835 void PPCOperand::print(raw_ostream &OS) const {
836  switch (Kind) {
837  case Token:
838  OS << "'" << getToken() << "'";
839  break;
840  case Immediate:
841  case ContextImmediate:
842  OS << getImm();
843  break;
844  case Expression:
845  OS << *getExpr();
846  break;
847  case TLSRegister:
848  OS << *getTLSReg();
849  break;
850  }
851 }
852 
853 static void
855  if (Op.isImm()) {
857  return;
858  }
859  const MCExpr *Expr = Op.getExpr();
860  if (const MCUnaryExpr *UnExpr = dyn_cast<MCUnaryExpr>(Expr)) {
861  if (UnExpr->getOpcode() == MCUnaryExpr::Minus) {
862  Inst.addOperand(MCOperand::createExpr(UnExpr->getSubExpr()));
863  return;
864  }
865  } else if (const MCBinaryExpr *BinExpr = dyn_cast<MCBinaryExpr>(Expr)) {
866  if (BinExpr->getOpcode() == MCBinaryExpr::Sub) {
867  const MCExpr *NE = MCBinaryExpr::createSub(BinExpr->getRHS(),
868  BinExpr->getLHS(), Ctx);
870  return;
871  }
872  }
874 }
875 
876 void PPCAsmParser::ProcessInstruction(MCInst &Inst,
877  const OperandVector &Operands) {
878  int Opcode = Inst.getOpcode();
879  switch (Opcode) {
880  case PPC::DCBTx:
881  case PPC::DCBTT:
882  case PPC::DCBTSTx:
883  case PPC::DCBTSTT: {
884  MCInst TmpInst;
885  TmpInst.setOpcode((Opcode == PPC::DCBTx || Opcode == PPC::DCBTT) ?
886  PPC::DCBT : PPC::DCBTST);
888  (Opcode == PPC::DCBTx || Opcode == PPC::DCBTSTx) ? 0 : 16));
889  TmpInst.addOperand(Inst.getOperand(0));
890  TmpInst.addOperand(Inst.getOperand(1));
891  Inst = TmpInst;
892  break;
893  }
894  case PPC::DCBTCT:
895  case PPC::DCBTDS: {
896  MCInst TmpInst;
897  TmpInst.setOpcode(PPC::DCBT);
898  TmpInst.addOperand(Inst.getOperand(2));
899  TmpInst.addOperand(Inst.getOperand(0));
900  TmpInst.addOperand(Inst.getOperand(1));
901  Inst = TmpInst;
902  break;
903  }
904  case PPC::DCBTSTCT:
905  case PPC::DCBTSTDS: {
906  MCInst TmpInst;
907  TmpInst.setOpcode(PPC::DCBTST);
908  TmpInst.addOperand(Inst.getOperand(2));
909  TmpInst.addOperand(Inst.getOperand(0));
910  TmpInst.addOperand(Inst.getOperand(1));
911  Inst = TmpInst;
912  break;
913  }
914  case PPC::DCBFx:
915  case PPC::DCBFL:
916  case PPC::DCBFLP: {
917  int L = 0;
918  if (Opcode == PPC::DCBFL)
919  L = 1;
920  else if (Opcode == PPC::DCBFLP)
921  L = 3;
922 
923  MCInst TmpInst;
924  TmpInst.setOpcode(PPC::DCBF);
925  TmpInst.addOperand(MCOperand::createImm(L));
926  TmpInst.addOperand(Inst.getOperand(0));
927  TmpInst.addOperand(Inst.getOperand(1));
928  Inst = TmpInst;
929  break;
930  }
931  case PPC::LAx: {
932  MCInst TmpInst;
933  TmpInst.setOpcode(PPC::LA);
934  TmpInst.addOperand(Inst.getOperand(0));
935  TmpInst.addOperand(Inst.getOperand(2));
936  TmpInst.addOperand(Inst.getOperand(1));
937  Inst = TmpInst;
938  break;
939  }
940  case PPC::SUBI: {
941  MCInst TmpInst;
942  TmpInst.setOpcode(PPC::ADDI);
943  TmpInst.addOperand(Inst.getOperand(0));
944  TmpInst.addOperand(Inst.getOperand(1));
945  addNegOperand(TmpInst, Inst.getOperand(2), getContext());
946  Inst = TmpInst;
947  break;
948  }
949  case PPC::SUBIS: {
950  MCInst TmpInst;
951  TmpInst.setOpcode(PPC::ADDIS);
952  TmpInst.addOperand(Inst.getOperand(0));
953  TmpInst.addOperand(Inst.getOperand(1));
954  addNegOperand(TmpInst, Inst.getOperand(2), getContext());
955  Inst = TmpInst;
956  break;
957  }
958  case PPC::SUBIC: {
959  MCInst TmpInst;
960  TmpInst.setOpcode(PPC::ADDIC);
961  TmpInst.addOperand(Inst.getOperand(0));
962  TmpInst.addOperand(Inst.getOperand(1));
963  addNegOperand(TmpInst, Inst.getOperand(2), getContext());
964  Inst = TmpInst;
965  break;
966  }
967  case PPC::SUBICo: {
968  MCInst TmpInst;
969  TmpInst.setOpcode(PPC::ADDICo);
970  TmpInst.addOperand(Inst.getOperand(0));
971  TmpInst.addOperand(Inst.getOperand(1));
972  addNegOperand(TmpInst, Inst.getOperand(2), getContext());
973  Inst = TmpInst;
974  break;
975  }
976  case PPC::EXTLWI:
977  case PPC::EXTLWIo: {
978  MCInst TmpInst;
979  int64_t N = Inst.getOperand(2).getImm();
980  int64_t B = Inst.getOperand(3).getImm();
981  TmpInst.setOpcode(Opcode == PPC::EXTLWI? PPC::RLWINM : PPC::RLWINMo);
982  TmpInst.addOperand(Inst.getOperand(0));
983  TmpInst.addOperand(Inst.getOperand(1));
984  TmpInst.addOperand(MCOperand::createImm(B));
985  TmpInst.addOperand(MCOperand::createImm(0));
986  TmpInst.addOperand(MCOperand::createImm(N - 1));
987  Inst = TmpInst;
988  break;
989  }
990  case PPC::EXTRWI:
991  case PPC::EXTRWIo: {
992  MCInst TmpInst;
993  int64_t N = Inst.getOperand(2).getImm();
994  int64_t B = Inst.getOperand(3).getImm();
995  TmpInst.setOpcode(Opcode == PPC::EXTRWI? PPC::RLWINM : PPC::RLWINMo);
996  TmpInst.addOperand(Inst.getOperand(0));
997  TmpInst.addOperand(Inst.getOperand(1));
998  TmpInst.addOperand(MCOperand::createImm(B + N));
999  TmpInst.addOperand(MCOperand::createImm(32 - N));
1000  TmpInst.addOperand(MCOperand::createImm(31));
1001  Inst = TmpInst;
1002  break;
1003  }
1004  case PPC::INSLWI:
1005  case PPC::INSLWIo: {
1006  MCInst TmpInst;
1007  int64_t N = Inst.getOperand(2).getImm();
1008  int64_t B = Inst.getOperand(3).getImm();
1009  TmpInst.setOpcode(Opcode == PPC::INSLWI? PPC::RLWIMI : PPC::RLWIMIo);
1010  TmpInst.addOperand(Inst.getOperand(0));
1011  TmpInst.addOperand(Inst.getOperand(0));
1012  TmpInst.addOperand(Inst.getOperand(1));
1013  TmpInst.addOperand(MCOperand::createImm(32 - B));
1014  TmpInst.addOperand(MCOperand::createImm(B));
1015  TmpInst.addOperand(MCOperand::createImm((B + N) - 1));
1016  Inst = TmpInst;
1017  break;
1018  }
1019  case PPC::INSRWI:
1020  case PPC::INSRWIo: {
1021  MCInst TmpInst;
1022  int64_t N = Inst.getOperand(2).getImm();
1023  int64_t B = Inst.getOperand(3).getImm();
1024  TmpInst.setOpcode(Opcode == PPC::INSRWI? PPC::RLWIMI : PPC::RLWIMIo);
1025  TmpInst.addOperand(Inst.getOperand(0));
1026  TmpInst.addOperand(Inst.getOperand(0));
1027  TmpInst.addOperand(Inst.getOperand(1));
1028  TmpInst.addOperand(MCOperand::createImm(32 - (B + N)));
1029  TmpInst.addOperand(MCOperand::createImm(B));
1030  TmpInst.addOperand(MCOperand::createImm((B + N) - 1));
1031  Inst = TmpInst;
1032  break;
1033  }
1034  case PPC::ROTRWI:
1035  case PPC::ROTRWIo: {
1036  MCInst TmpInst;
1037  int64_t N = Inst.getOperand(2).getImm();
1038  TmpInst.setOpcode(Opcode == PPC::ROTRWI? PPC::RLWINM : PPC::RLWINMo);
1039  TmpInst.addOperand(Inst.getOperand(0));
1040  TmpInst.addOperand(Inst.getOperand(1));
1041  TmpInst.addOperand(MCOperand::createImm(32 - N));
1042  TmpInst.addOperand(MCOperand::createImm(0));
1043  TmpInst.addOperand(MCOperand::createImm(31));
1044  Inst = TmpInst;
1045  break;
1046  }
1047  case PPC::SLWI:
1048  case PPC::SLWIo: {
1049  MCInst TmpInst;
1050  int64_t N = Inst.getOperand(2).getImm();
1051  TmpInst.setOpcode(Opcode == PPC::SLWI? PPC::RLWINM : PPC::RLWINMo);
1052  TmpInst.addOperand(Inst.getOperand(0));
1053  TmpInst.addOperand(Inst.getOperand(1));
1054  TmpInst.addOperand(MCOperand::createImm(N));
1055  TmpInst.addOperand(MCOperand::createImm(0));
1056  TmpInst.addOperand(MCOperand::createImm(31 - N));
1057  Inst = TmpInst;
1058  break;
1059  }
1060  case PPC::SRWI:
1061  case PPC::SRWIo: {
1062  MCInst TmpInst;
1063  int64_t N = Inst.getOperand(2).getImm();
1064  TmpInst.setOpcode(Opcode == PPC::SRWI? PPC::RLWINM : PPC::RLWINMo);
1065  TmpInst.addOperand(Inst.getOperand(0));
1066  TmpInst.addOperand(Inst.getOperand(1));
1067  TmpInst.addOperand(MCOperand::createImm(32 - N));
1068  TmpInst.addOperand(MCOperand::createImm(N));
1069  TmpInst.addOperand(MCOperand::createImm(31));
1070  Inst = TmpInst;
1071  break;
1072  }
1073  case PPC::CLRRWI:
1074  case PPC::CLRRWIo: {
1075  MCInst TmpInst;
1076  int64_t N = Inst.getOperand(2).getImm();
1077  TmpInst.setOpcode(Opcode == PPC::CLRRWI? PPC::RLWINM : PPC::RLWINMo);
1078  TmpInst.addOperand(Inst.getOperand(0));
1079  TmpInst.addOperand(Inst.getOperand(1));
1080  TmpInst.addOperand(MCOperand::createImm(0));
1081  TmpInst.addOperand(MCOperand::createImm(0));
1082  TmpInst.addOperand(MCOperand::createImm(31 - N));
1083  Inst = TmpInst;
1084  break;
1085  }
1086  case PPC::CLRLSLWI:
1087  case PPC::CLRLSLWIo: {
1088  MCInst TmpInst;
1089  int64_t B = Inst.getOperand(2).getImm();
1090  int64_t N = Inst.getOperand(3).getImm();
1091  TmpInst.setOpcode(Opcode == PPC::CLRLSLWI? PPC::RLWINM : PPC::RLWINMo);
1092  TmpInst.addOperand(Inst.getOperand(0));
1093  TmpInst.addOperand(Inst.getOperand(1));
1094  TmpInst.addOperand(MCOperand::createImm(N));
1095  TmpInst.addOperand(MCOperand::createImm(B - N));
1096  TmpInst.addOperand(MCOperand::createImm(31 - N));
1097  Inst = TmpInst;
1098  break;
1099  }
1100  case PPC::EXTLDI:
1101  case PPC::EXTLDIo: {
1102  MCInst TmpInst;
1103  int64_t N = Inst.getOperand(2).getImm();
1104  int64_t B = Inst.getOperand(3).getImm();
1105  TmpInst.setOpcode(Opcode == PPC::EXTLDI? PPC::RLDICR : PPC::RLDICRo);
1106  TmpInst.addOperand(Inst.getOperand(0));
1107  TmpInst.addOperand(Inst.getOperand(1));
1108  TmpInst.addOperand(MCOperand::createImm(B));
1109  TmpInst.addOperand(MCOperand::createImm(N - 1));
1110  Inst = TmpInst;
1111  break;
1112  }
1113  case PPC::EXTRDI:
1114  case PPC::EXTRDIo: {
1115  MCInst TmpInst;
1116  int64_t N = Inst.getOperand(2).getImm();
1117  int64_t B = Inst.getOperand(3).getImm();
1118  TmpInst.setOpcode(Opcode == PPC::EXTRDI? PPC::RLDICL : PPC::RLDICLo);
1119  TmpInst.addOperand(Inst.getOperand(0));
1120  TmpInst.addOperand(Inst.getOperand(1));
1121  TmpInst.addOperand(MCOperand::createImm(B + N));
1122  TmpInst.addOperand(MCOperand::createImm(64 - N));
1123  Inst = TmpInst;
1124  break;
1125  }
1126  case PPC::INSRDI:
1127  case PPC::INSRDIo: {
1128  MCInst TmpInst;
1129  int64_t N = Inst.getOperand(2).getImm();
1130  int64_t B = Inst.getOperand(3).getImm();
1131  TmpInst.setOpcode(Opcode == PPC::INSRDI? PPC::RLDIMI : PPC::RLDIMIo);
1132  TmpInst.addOperand(Inst.getOperand(0));
1133  TmpInst.addOperand(Inst.getOperand(0));
1134  TmpInst.addOperand(Inst.getOperand(1));
1135  TmpInst.addOperand(MCOperand::createImm(64 - (B + N)));
1136  TmpInst.addOperand(MCOperand::createImm(B));
1137  Inst = TmpInst;
1138  break;
1139  }
1140  case PPC::ROTRDI:
1141  case PPC::ROTRDIo: {
1142  MCInst TmpInst;
1143  int64_t N = Inst.getOperand(2).getImm();
1144  TmpInst.setOpcode(Opcode == PPC::ROTRDI? PPC::RLDICL : PPC::RLDICLo);
1145  TmpInst.addOperand(Inst.getOperand(0));
1146  TmpInst.addOperand(Inst.getOperand(1));
1147  TmpInst.addOperand(MCOperand::createImm(64 - N));
1148  TmpInst.addOperand(MCOperand::createImm(0));
1149  Inst = TmpInst;
1150  break;
1151  }
1152  case PPC::SLDI:
1153  case PPC::SLDIo: {
1154  MCInst TmpInst;
1155  int64_t N = Inst.getOperand(2).getImm();
1156  TmpInst.setOpcode(Opcode == PPC::SLDI? PPC::RLDICR : PPC::RLDICRo);
1157  TmpInst.addOperand(Inst.getOperand(0));
1158  TmpInst.addOperand(Inst.getOperand(1));
1159  TmpInst.addOperand(MCOperand::createImm(N));
1160  TmpInst.addOperand(MCOperand::createImm(63 - N));
1161  Inst = TmpInst;
1162  break;
1163  }
1164  case PPC::SUBPCIS: {
1165  MCInst TmpInst;
1166  int64_t N = Inst.getOperand(1).getImm();
1167  TmpInst.setOpcode(PPC::ADDPCIS);
1168  TmpInst.addOperand(Inst.getOperand(0));
1169  TmpInst.addOperand(MCOperand::createImm(-N));
1170  Inst = TmpInst;
1171  break;
1172  }
1173  case PPC::SRDI:
1174  case PPC::SRDIo: {
1175  MCInst TmpInst;
1176  int64_t N = Inst.getOperand(2).getImm();
1177  TmpInst.setOpcode(Opcode == PPC::SRDI? PPC::RLDICL : PPC::RLDICLo);
1178  TmpInst.addOperand(Inst.getOperand(0));
1179  TmpInst.addOperand(Inst.getOperand(1));
1180  TmpInst.addOperand(MCOperand::createImm(64 - N));
1181  TmpInst.addOperand(MCOperand::createImm(N));
1182  Inst = TmpInst;
1183  break;
1184  }
1185  case PPC::CLRRDI:
1186  case PPC::CLRRDIo: {
1187  MCInst TmpInst;
1188  int64_t N = Inst.getOperand(2).getImm();
1189  TmpInst.setOpcode(Opcode == PPC::CLRRDI? PPC::RLDICR : PPC::RLDICRo);
1190  TmpInst.addOperand(Inst.getOperand(0));
1191  TmpInst.addOperand(Inst.getOperand(1));
1192  TmpInst.addOperand(MCOperand::createImm(0));
1193  TmpInst.addOperand(MCOperand::createImm(63 - N));
1194  Inst = TmpInst;
1195  break;
1196  }
1197  case PPC::CLRLSLDI:
1198  case PPC::CLRLSLDIo: {
1199  MCInst TmpInst;
1200  int64_t B = Inst.getOperand(2).getImm();
1201  int64_t N = Inst.getOperand(3).getImm();
1202  TmpInst.setOpcode(Opcode == PPC::CLRLSLDI? PPC::RLDIC : PPC::RLDICo);
1203  TmpInst.addOperand(Inst.getOperand(0));
1204  TmpInst.addOperand(Inst.getOperand(1));
1205  TmpInst.addOperand(MCOperand::createImm(N));
1206  TmpInst.addOperand(MCOperand::createImm(B - N));
1207  Inst = TmpInst;
1208  break;
1209  }
1210  case PPC::RLWINMbm:
1211  case PPC::RLWINMobm: {
1212  unsigned MB, ME;
1213  int64_t BM = Inst.getOperand(3).getImm();
1214  if (!isRunOfOnes(BM, MB, ME))
1215  break;
1216 
1217  MCInst TmpInst;
1218  TmpInst.setOpcode(Opcode == PPC::RLWINMbm ? PPC::RLWINM : PPC::RLWINMo);
1219  TmpInst.addOperand(Inst.getOperand(0));
1220  TmpInst.addOperand(Inst.getOperand(1));
1221  TmpInst.addOperand(Inst.getOperand(2));
1222  TmpInst.addOperand(MCOperand::createImm(MB));
1223  TmpInst.addOperand(MCOperand::createImm(ME));
1224  Inst = TmpInst;
1225  break;
1226  }
1227  case PPC::RLWIMIbm:
1228  case PPC::RLWIMIobm: {
1229  unsigned MB, ME;
1230  int64_t BM = Inst.getOperand(3).getImm();
1231  if (!isRunOfOnes(BM, MB, ME))
1232  break;
1233 
1234  MCInst TmpInst;
1235  TmpInst.setOpcode(Opcode == PPC::RLWIMIbm ? PPC::RLWIMI : PPC::RLWIMIo);
1236  TmpInst.addOperand(Inst.getOperand(0));
1237  TmpInst.addOperand(Inst.getOperand(0)); // The tied operand.
1238  TmpInst.addOperand(Inst.getOperand(1));
1239  TmpInst.addOperand(Inst.getOperand(2));
1240  TmpInst.addOperand(MCOperand::createImm(MB));
1241  TmpInst.addOperand(MCOperand::createImm(ME));
1242  Inst = TmpInst;
1243  break;
1244  }
1245  case PPC::RLWNMbm:
1246  case PPC::RLWNMobm: {
1247  unsigned MB, ME;
1248  int64_t BM = Inst.getOperand(3).getImm();
1249  if (!isRunOfOnes(BM, MB, ME))
1250  break;
1251 
1252  MCInst TmpInst;
1253  TmpInst.setOpcode(Opcode == PPC::RLWNMbm ? PPC::RLWNM : PPC::RLWNMo);
1254  TmpInst.addOperand(Inst.getOperand(0));
1255  TmpInst.addOperand(Inst.getOperand(1));
1256  TmpInst.addOperand(Inst.getOperand(2));
1257  TmpInst.addOperand(MCOperand::createImm(MB));
1258  TmpInst.addOperand(MCOperand::createImm(ME));
1259  Inst = TmpInst;
1260  break;
1261  }
1262  case PPC::MFTB: {
1263  if (getSTI().getFeatureBits()[PPC::FeatureMFTB]) {
1264  assert(Inst.getNumOperands() == 2 && "Expecting two operands");
1265  Inst.setOpcode(PPC::MFSPR);
1266  }
1267  break;
1268  }
1269  case PPC::CP_COPYx:
1270  case PPC::CP_COPY_FIRST: {
1271  MCInst TmpInst;
1272  TmpInst.setOpcode(PPC::CP_COPY);
1273  TmpInst.addOperand(Inst.getOperand(0));
1274  TmpInst.addOperand(Inst.getOperand(1));
1275  TmpInst.addOperand(MCOperand::createImm(Opcode == PPC::CP_COPYx ? 0 : 1));
1276 
1277  Inst = TmpInst;
1278  break;
1279  }
1280  case PPC::CP_PASTEx :
1281  case PPC::CP_PASTE_LAST: {
1282  MCInst TmpInst;
1283  TmpInst.setOpcode(Opcode == PPC::CP_PASTEx ?
1284  PPC::CP_PASTE : PPC::CP_PASTEo);
1285  TmpInst.addOperand(Inst.getOperand(0));
1286  TmpInst.addOperand(Inst.getOperand(1));
1287  TmpInst.addOperand(MCOperand::createImm(Opcode == PPC::CP_PASTEx ? 0 : 1));
1288 
1289  Inst = TmpInst;
1290  break;
1291  }
1292  }
1293 }
1294 
1295 static std::string PPCMnemonicSpellCheck(StringRef S, uint64_t FBS,
1296  unsigned VariantID = 0);
1297 
1298 bool PPCAsmParser::MatchAndEmitInstruction(SMLoc IDLoc, unsigned &Opcode,
1299  OperandVector &Operands,
1300  MCStreamer &Out, uint64_t &ErrorInfo,
1301  bool MatchingInlineAsm) {
1302  MCInst Inst;
1303 
1304  switch (MatchInstructionImpl(Operands, Inst, ErrorInfo, MatchingInlineAsm)) {
1305  case Match_Success:
1306  // Post-process instructions (typically extended mnemonics)
1307  ProcessInstruction(Inst, Operands);
1308  Inst.setLoc(IDLoc);
1309  Out.EmitInstruction(Inst, getSTI());
1310  return false;
1311  case Match_MissingFeature:
1312  return Error(IDLoc, "instruction use requires an option to be enabled");
1313  case Match_MnemonicFail: {
1314  uint64_t FBS = ComputeAvailableFeatures(getSTI().getFeatureBits());
1315  std::string Suggestion = PPCMnemonicSpellCheck(
1316  ((PPCOperand &)*Operands[0]).getToken(), FBS);
1317  return Error(IDLoc, "invalid instruction" + Suggestion,
1318  ((PPCOperand &)*Operands[0]).getLocRange());
1319  }
1320  case Match_InvalidOperand: {
1321  SMLoc ErrorLoc = IDLoc;
1322  if (ErrorInfo != ~0ULL) {
1323  if (ErrorInfo >= Operands.size())
1324  return Error(IDLoc, "too few operands for instruction");
1325 
1326  ErrorLoc = ((PPCOperand &)*Operands[ErrorInfo]).getStartLoc();
1327  if (ErrorLoc == SMLoc()) ErrorLoc = IDLoc;
1328  }
1329 
1330  return Error(ErrorLoc, "invalid operand for instruction");
1331  }
1332  }
1333 
1334  llvm_unreachable("Implement any new match types added!");
1335 }
1336 
1337 bool PPCAsmParser::MatchRegisterName(unsigned &RegNo, int64_t &IntVal) {
1338  if (getParser().getTok().is(AsmToken::Identifier)) {
1339  StringRef Name = getParser().getTok().getString();
1340  if (Name.equals_lower("lr")) {
1341  RegNo = isPPC64()? PPC::LR8 : PPC::LR;
1342  IntVal = 8;
1343  } else if (Name.equals_lower("ctr")) {
1344  RegNo = isPPC64()? PPC::CTR8 : PPC::CTR;
1345  IntVal = 9;
1346  } else if (Name.equals_lower("vrsave")) {
1347  RegNo = PPC::VRSAVE;
1348  IntVal = 256;
1349  } else if (Name.startswith_lower("r") &&
1350  !Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
1351  RegNo = isPPC64()? XRegs[IntVal] : RRegs[IntVal];
1352  } else if (Name.startswith_lower("f") &&
1353  !Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
1354  RegNo = FRegs[IntVal];
1355  } else if (Name.startswith_lower("vs") &&
1356  !Name.substr(2).getAsInteger(10, IntVal) && IntVal < 64) {
1357  RegNo = VSRegs[IntVal];
1358  } else if (Name.startswith_lower("v") &&
1359  !Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
1360  RegNo = VRegs[IntVal];
1361  } else if (Name.startswith_lower("q") &&
1362  !Name.substr(1).getAsInteger(10, IntVal) && IntVal < 32) {
1363  RegNo = QFRegs[IntVal];
1364  } else if (Name.startswith_lower("cr") &&
1365  !Name.substr(2).getAsInteger(10, IntVal) && IntVal < 8) {
1366  RegNo = CRRegs[IntVal];
1367  } else
1368  return true;
1369  getParser().Lex();
1370  return false;
1371  }
1372  return true;
1373 }
1374 
1375 bool PPCAsmParser::
1376 ParseRegister(unsigned &RegNo, SMLoc &StartLoc, SMLoc &EndLoc) {
1377  const AsmToken &Tok = getParser().getTok();
1378  StartLoc = Tok.getLoc();
1379  EndLoc = Tok.getEndLoc();
1380  RegNo = 0;
1381  int64_t IntVal;
1382  if (MatchRegisterName(RegNo, IntVal))
1383  return TokError("invalid register name");
1384  return false;
1385 }
1386 
1387 /// Extract \code @l/@ha \endcode modifier from expression. Recursively scan
1388 /// the expression and check for VK_PPC_LO/HI/HA
1389 /// symbol variants. If all symbols with modifier use the same
1390 /// variant, return the corresponding PPCMCExpr::VariantKind,
1391 /// and a modified expression using the default symbol variant.
1392 /// Otherwise, return NULL.
1393 const MCExpr *PPCAsmParser::
1394 ExtractModifierFromExpr(const MCExpr *E,
1395  PPCMCExpr::VariantKind &Variant) {
1396  MCContext &Context = getParser().getContext();
1397  Variant = PPCMCExpr::VK_PPC_None;
1398 
1399  switch (E->getKind()) {
1400  case MCExpr::Target:
1401  case MCExpr::Constant:
1402  return nullptr;
1403 
1404  case MCExpr::SymbolRef: {
1405  const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
1406 
1407  switch (SRE->getKind()) {
1409  Variant = PPCMCExpr::VK_PPC_LO;
1410  break;
1412  Variant = PPCMCExpr::VK_PPC_HI;
1413  break;
1415  Variant = PPCMCExpr::VK_PPC_HA;
1416  break;
1418  Variant = PPCMCExpr::VK_PPC_HIGH;
1419  break;
1421  Variant = PPCMCExpr::VK_PPC_HIGHA;
1422  break;
1424  Variant = PPCMCExpr::VK_PPC_HIGHER;
1425  break;
1427  Variant = PPCMCExpr::VK_PPC_HIGHERA;
1428  break;
1430  Variant = PPCMCExpr::VK_PPC_HIGHEST;
1431  break;
1433  Variant = PPCMCExpr::VK_PPC_HIGHESTA;
1434  break;
1435  default:
1436  return nullptr;
1437  }
1438 
1439  return MCSymbolRefExpr::create(&SRE->getSymbol(), Context);
1440  }
1441 
1442  case MCExpr::Unary: {
1443  const MCUnaryExpr *UE = cast<MCUnaryExpr>(E);
1444  const MCExpr *Sub = ExtractModifierFromExpr(UE->getSubExpr(), Variant);
1445  if (!Sub)
1446  return nullptr;
1447  return MCUnaryExpr::create(UE->getOpcode(), Sub, Context);
1448  }
1449 
1450  case MCExpr::Binary: {
1451  const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
1452  PPCMCExpr::VariantKind LHSVariant, RHSVariant;
1453  const MCExpr *LHS = ExtractModifierFromExpr(BE->getLHS(), LHSVariant);
1454  const MCExpr *RHS = ExtractModifierFromExpr(BE->getRHS(), RHSVariant);
1455 
1456  if (!LHS && !RHS)
1457  return nullptr;
1458 
1459  if (!LHS) LHS = BE->getLHS();
1460  if (!RHS) RHS = BE->getRHS();
1461 
1462  if (LHSVariant == PPCMCExpr::VK_PPC_None)
1463  Variant = RHSVariant;
1464  else if (RHSVariant == PPCMCExpr::VK_PPC_None)
1465  Variant = LHSVariant;
1466  else if (LHSVariant == RHSVariant)
1467  Variant = LHSVariant;
1468  else
1469  return nullptr;
1470 
1471  return MCBinaryExpr::create(BE->getOpcode(), LHS, RHS, Context);
1472  }
1473  }
1474 
1475  llvm_unreachable("Invalid expression kind!");
1476 }
1477 
1478 /// Find all VK_TLSGD/VK_TLSLD symbol references in expression and replace
1479 /// them by VK_PPC_TLSGD/VK_PPC_TLSLD. This is necessary to avoid having
1480 /// _GLOBAL_OFFSET_TABLE_ created via ELFObjectWriter::RelocNeedsGOT.
1481 /// FIXME: This is a hack.
1482 const MCExpr *PPCAsmParser::
1483 FixupVariantKind(const MCExpr *E) {
1484  MCContext &Context = getParser().getContext();
1485 
1486  switch (E->getKind()) {
1487  case MCExpr::Target:
1488  case MCExpr::Constant:
1489  return E;
1490 
1491  case MCExpr::SymbolRef: {
1492  const MCSymbolRefExpr *SRE = cast<MCSymbolRefExpr>(E);
1494 
1495  switch (SRE->getKind()) {
1498  break;
1501  break;
1502  default:
1503  return E;
1504  }
1505  return MCSymbolRefExpr::create(&SRE->getSymbol(), Variant, Context);
1506  }
1507 
1508  case MCExpr::Unary: {
1509  const MCUnaryExpr *UE = cast<MCUnaryExpr>(E);
1510  const MCExpr *Sub = FixupVariantKind(UE->getSubExpr());
1511  if (Sub == UE->getSubExpr())
1512  return E;
1513  return MCUnaryExpr::create(UE->getOpcode(), Sub, Context);
1514  }
1515 
1516  case MCExpr::Binary: {
1517  const MCBinaryExpr *BE = cast<MCBinaryExpr>(E);
1518  const MCExpr *LHS = FixupVariantKind(BE->getLHS());
1519  const MCExpr *RHS = FixupVariantKind(BE->getRHS());
1520  if (LHS == BE->getLHS() && RHS == BE->getRHS())
1521  return E;
1522  return MCBinaryExpr::create(BE->getOpcode(), LHS, RHS, Context);
1523  }
1524  }
1525 
1526  llvm_unreachable("Invalid expression kind!");
1527 }
1528 
1529 /// ParseExpression. This differs from the default "parseExpression" in that
1530 /// it handles modifiers.
1531 bool PPCAsmParser::
1532 ParseExpression(const MCExpr *&EVal) {
1533 
1534  if (isDarwin())
1535  return ParseDarwinExpression(EVal);
1536 
1537  // (ELF Platforms)
1538  // Handle \code @l/@ha \endcode
1539  if (getParser().parseExpression(EVal))
1540  return true;
1541 
1542  EVal = FixupVariantKind(EVal);
1543 
1544  PPCMCExpr::VariantKind Variant;
1545  const MCExpr *E = ExtractModifierFromExpr(EVal, Variant);
1546  if (E)
1547  EVal = PPCMCExpr::create(Variant, E, false, getParser().getContext());
1548 
1549  return false;
1550 }
1551 
1552 /// ParseDarwinExpression. (MachO Platforms)
1553 /// This differs from the default "parseExpression" in that it handles detection
1554 /// of the \code hi16(), ha16() and lo16() \endcode modifiers. At present,
1555 /// parseExpression() doesn't recognise the modifiers when in the Darwin/MachO
1556 /// syntax form so it is done here. TODO: Determine if there is merit in
1557 /// arranging for this to be done at a higher level.
1558 bool PPCAsmParser::
1559 ParseDarwinExpression(const MCExpr *&EVal) {
1560  MCAsmParser &Parser = getParser();
1562  switch (getLexer().getKind()) {
1563  default:
1564  break;
1565  case AsmToken::Identifier:
1566  // Compiler-generated Darwin identifiers begin with L,l,_ or "; thus
1567  // something starting with any other char should be part of the
1568  // asm syntax. If handwritten asm includes an identifier like lo16,
1569  // then all bets are off - but no-one would do that, right?
1570  StringRef poss = Parser.getTok().getString();
1571  if (poss.equals_lower("lo16")) {
1572  Variant = PPCMCExpr::VK_PPC_LO;
1573  } else if (poss.equals_lower("hi16")) {
1574  Variant = PPCMCExpr::VK_PPC_HI;
1575  } else if (poss.equals_lower("ha16")) {
1576  Variant = PPCMCExpr::VK_PPC_HA;
1577  }
1578  if (Variant != PPCMCExpr::VK_PPC_None) {
1579  Parser.Lex(); // Eat the xx16
1580  if (getLexer().isNot(AsmToken::LParen))
1581  return Error(Parser.getTok().getLoc(), "expected '('");
1582  Parser.Lex(); // Eat the '('
1583  }
1584  break;
1585  }
1586 
1587  if (getParser().parseExpression(EVal))
1588  return true;
1589 
1590  if (Variant != PPCMCExpr::VK_PPC_None) {
1591  if (getLexer().isNot(AsmToken::RParen))
1592  return Error(Parser.getTok().getLoc(), "expected ')'");
1593  Parser.Lex(); // Eat the ')'
1594  EVal = PPCMCExpr::create(Variant, EVal, false, getParser().getContext());
1595  }
1596  return false;
1597 }
1598 
1599 /// ParseOperand
1600 /// This handles registers in the form 'NN', '%rNN' for ELF platforms and
1601 /// rNN for MachO.
1602 bool PPCAsmParser::ParseOperand(OperandVector &Operands) {
1603  MCAsmParser &Parser = getParser();
1604  SMLoc S = Parser.getTok().getLoc();
1605  SMLoc E = SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
1606  const MCExpr *EVal;
1607 
1608  // Attempt to parse the next token as an immediate
1609  switch (getLexer().getKind()) {
1610  // Special handling for register names. These are interpreted
1611  // as immediates corresponding to the register number.
1612  case AsmToken::Percent:
1613  Parser.Lex(); // Eat the '%'.
1614  unsigned RegNo;
1615  int64_t IntVal;
1616  if (MatchRegisterName(RegNo, IntVal))
1617  return Error(S, "invalid register name");
1618 
1619  Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
1620  return false;
1621 
1622  case AsmToken::Identifier:
1623  case AsmToken::LParen:
1624  case AsmToken::Plus:
1625  case AsmToken::Minus:
1626  case AsmToken::Integer:
1627  case AsmToken::Dot:
1628  case AsmToken::Dollar:
1629  case AsmToken::Exclaim:
1630  case AsmToken::Tilde:
1631  // Note that non-register-name identifiers from the compiler will begin
1632  // with '_', 'L'/'l' or '"'. Of course, handwritten asm could include
1633  // identifiers like r31foo - so we fall through in the event that parsing
1634  // a register name fails.
1635  if (isDarwin()) {
1636  unsigned RegNo;
1637  int64_t IntVal;
1638  if (!MatchRegisterName(RegNo, IntVal)) {
1639  Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
1640  return false;
1641  }
1642  }
1643  // All other expressions
1644 
1645  if (!ParseExpression(EVal))
1646  break;
1647  // Fall-through
1649  default:
1650  return Error(S, "unknown operand");
1651  }
1652 
1653  // Push the parsed operand into the list of operands
1654  Operands.push_back(PPCOperand::CreateFromMCExpr(EVal, S, E, isPPC64()));
1655 
1656  // Check whether this is a TLS call expression
1657  bool TLSCall = false;
1658  if (const MCSymbolRefExpr *Ref = dyn_cast<MCSymbolRefExpr>(EVal))
1659  TLSCall = Ref->getSymbol().getName() == "__tls_get_addr";
1660 
1661  if (TLSCall && getLexer().is(AsmToken::LParen)) {
1662  const MCExpr *TLSSym;
1663 
1664  Parser.Lex(); // Eat the '('.
1665  S = Parser.getTok().getLoc();
1666  if (ParseExpression(TLSSym))
1667  return Error(S, "invalid TLS call expression");
1668  if (getLexer().isNot(AsmToken::RParen))
1669  return Error(Parser.getTok().getLoc(), "missing ')'");
1670  E = Parser.getTok().getLoc();
1671  Parser.Lex(); // Eat the ')'.
1672 
1673  Operands.push_back(PPCOperand::CreateFromMCExpr(TLSSym, S, E, isPPC64()));
1674  }
1675 
1676  // Otherwise, check for D-form memory operands
1677  if (!TLSCall && getLexer().is(AsmToken::LParen)) {
1678  Parser.Lex(); // Eat the '('.
1679  S = Parser.getTok().getLoc();
1680 
1681  int64_t IntVal;
1682  switch (getLexer().getKind()) {
1683  case AsmToken::Percent:
1684  Parser.Lex(); // Eat the '%'.
1685  unsigned RegNo;
1686  if (MatchRegisterName(RegNo, IntVal))
1687  return Error(S, "invalid register name");
1688  break;
1689 
1690  case AsmToken::Integer:
1691  if (isDarwin())
1692  return Error(S, "unexpected integer value");
1693  else if (getParser().parseAbsoluteExpression(IntVal) || IntVal < 0 ||
1694  IntVal > 31)
1695  return Error(S, "invalid register number");
1696  break;
1697  case AsmToken::Identifier:
1698  if (isDarwin()) {
1699  unsigned RegNo;
1700  if (!MatchRegisterName(RegNo, IntVal)) {
1701  break;
1702  }
1703  }
1705 
1706  default:
1707  return Error(S, "invalid memory operand");
1708  }
1709 
1710  E = Parser.getTok().getLoc();
1711  if (parseToken(AsmToken::RParen, "missing ')'"))
1712  return true;
1713  Operands.push_back(PPCOperand::CreateImm(IntVal, S, E, isPPC64()));
1714  }
1715 
1716  return false;
1717 }
1718 
1719 /// Parse an instruction mnemonic followed by its operands.
1720 bool PPCAsmParser::ParseInstruction(ParseInstructionInfo &Info, StringRef Name,
1721  SMLoc NameLoc, OperandVector &Operands) {
1722  // The first operand is the token for the instruction name.
1723  // If the next character is a '+' or '-', we need to add it to the
1724  // instruction name, to match what TableGen is doing.
1725  std::string NewOpcode;
1726  if (parseOptionalToken(AsmToken::Plus)) {
1727  NewOpcode = Name;
1728  NewOpcode += '+';
1729  Name = NewOpcode;
1730  }
1731  if (parseOptionalToken(AsmToken::Minus)) {
1732  NewOpcode = Name;
1733  NewOpcode += '-';
1734  Name = NewOpcode;
1735  }
1736  // If the instruction ends in a '.', we need to create a separate
1737  // token for it, to match what TableGen is doing.
1738  size_t Dot = Name.find('.');
1739  StringRef Mnemonic = Name.slice(0, Dot);
1740  if (!NewOpcode.empty()) // Underlying memory for Name is volatile.
1741  Operands.push_back(
1742  PPCOperand::CreateTokenWithStringCopy(Mnemonic, NameLoc, isPPC64()));
1743  else
1744  Operands.push_back(PPCOperand::CreateToken(Mnemonic, NameLoc, isPPC64()));
1745  if (Dot != StringRef::npos) {
1746  SMLoc DotLoc = SMLoc::getFromPointer(NameLoc.getPointer() + Dot);
1747  StringRef DotStr = Name.slice(Dot, StringRef::npos);
1748  if (!NewOpcode.empty()) // Underlying memory for Name is volatile.
1749  Operands.push_back(
1750  PPCOperand::CreateTokenWithStringCopy(DotStr, DotLoc, isPPC64()));
1751  else
1752  Operands.push_back(PPCOperand::CreateToken(DotStr, DotLoc, isPPC64()));
1753  }
1754 
1755  // If there are no more operands then finish
1756  if (parseOptionalToken(AsmToken::EndOfStatement))
1757  return false;
1758 
1759  // Parse the first operand
1760  if (ParseOperand(Operands))
1761  return true;
1762 
1763  while (!parseOptionalToken(AsmToken::EndOfStatement)) {
1764  if (parseToken(AsmToken::Comma) || ParseOperand(Operands))
1765  return true;
1766  }
1767 
1768  // We'll now deal with an unfortunate special case: the syntax for the dcbt
1769  // and dcbtst instructions differs for server vs. embedded cores.
1770  // The syntax for dcbt is:
1771  // dcbt ra, rb, th [server]
1772  // dcbt th, ra, rb [embedded]
1773  // where th can be omitted when it is 0. dcbtst is the same. We take the
1774  // server form to be the default, so swap the operands if we're parsing for
1775  // an embedded core (they'll be swapped again upon printing).
1776  if (getSTI().getFeatureBits()[PPC::FeatureBookE] &&
1777  Operands.size() == 4 &&
1778  (Name == "dcbt" || Name == "dcbtst")) {
1779  std::swap(Operands[1], Operands[3]);
1780  std::swap(Operands[2], Operands[1]);
1781  }
1782 
1783  return false;
1784 }
1785 
1786 /// ParseDirective parses the PPC specific directives
1787 bool PPCAsmParser::ParseDirective(AsmToken DirectiveID) {
1788  StringRef IDVal = DirectiveID.getIdentifier();
1789  if (isDarwin()) {
1790  if (IDVal == ".machine")
1791  ParseDarwinDirectiveMachine(DirectiveID.getLoc());
1792  else
1793  return true;
1794  } else if (IDVal == ".word")
1795  ParseDirectiveWord(2, DirectiveID);
1796  else if (IDVal == ".llong")
1797  ParseDirectiveWord(8, DirectiveID);
1798  else if (IDVal == ".tc")
1799  ParseDirectiveTC(isPPC64() ? 8 : 4, DirectiveID);
1800  else if (IDVal == ".machine")
1801  ParseDirectiveMachine(DirectiveID.getLoc());
1802  else if (IDVal == ".abiversion")
1803  ParseDirectiveAbiVersion(DirectiveID.getLoc());
1804  else if (IDVal == ".localentry")
1805  ParseDirectiveLocalEntry(DirectiveID.getLoc());
1806  else
1807  return true;
1808  return false;
1809 }
1810 
1811 /// ParseDirectiveWord
1812 /// ::= .word [ expression (, expression)* ]
1813 bool PPCAsmParser::ParseDirectiveWord(unsigned Size, AsmToken ID) {
1814  auto parseOp = [&]() -> bool {
1815  const MCExpr *Value;
1816  SMLoc ExprLoc = getParser().getTok().getLoc();
1817  if (getParser().parseExpression(Value))
1818  return true;
1819  if (const auto *MCE = dyn_cast<MCConstantExpr>(Value)) {
1820  assert(Size <= 8 && "Invalid size");
1821  uint64_t IntValue = MCE->getValue();
1822  if (!isUIntN(8 * Size, IntValue) && !isIntN(8 * Size, IntValue))
1823  return Error(ExprLoc, "literal value out of range for '" +
1824  ID.getIdentifier() + "' directive");
1825  getStreamer().EmitIntValue(IntValue, Size);
1826  } else
1827  getStreamer().EmitValue(Value, Size, ExprLoc);
1828  return false;
1829  };
1830 
1831  if (parseMany(parseOp))
1832  return addErrorSuffix(" in '" + ID.getIdentifier() + "' directive");
1833  return false;
1834 }
1835 
1836 /// ParseDirectiveTC
1837 /// ::= .tc [ symbol (, expression)* ]
1838 bool PPCAsmParser::ParseDirectiveTC(unsigned Size, AsmToken ID) {
1839  MCAsmParser &Parser = getParser();
1840  // Skip TC symbol, which is only used with XCOFF.
1841  while (getLexer().isNot(AsmToken::EndOfStatement)
1842  && getLexer().isNot(AsmToken::Comma))
1843  Parser.Lex();
1844  if (parseToken(AsmToken::Comma))
1845  return addErrorSuffix(" in '.tc' directive");
1846 
1847  // Align to word size.
1848  getParser().getStreamer().EmitValueToAlignment(Size);
1849 
1850  // Emit expressions.
1851  return ParseDirectiveWord(Size, ID);
1852 }
1853 
1854 /// ParseDirectiveMachine (ELF platforms)
1855 /// ::= .machine [ cpu | "push" | "pop" ]
1856 bool PPCAsmParser::ParseDirectiveMachine(SMLoc L) {
1857  MCAsmParser &Parser = getParser();
1858  if (Parser.getTok().isNot(AsmToken::Identifier) &&
1859  Parser.getTok().isNot(AsmToken::String))
1860  return Error(L, "unexpected token in '.machine' directive");
1861 
1862  StringRef CPU = Parser.getTok().getIdentifier();
1863 
1864  // FIXME: Right now, the parser always allows any available
1865  // instruction, so the .machine directive is not useful.
1866  // Implement ".machine any" (by doing nothing) for the benefit
1867  // of existing assembler code. Likewise, we can then implement
1868  // ".machine push" and ".machine pop" as no-op.
1869  if (CPU != "any" && CPU != "push" && CPU != "pop")
1870  return TokError("unrecognized machine type");
1871 
1872  Parser.Lex();
1873 
1874  if (parseToken(AsmToken::EndOfStatement))
1875  return addErrorSuffix(" in '.machine' directive");
1876 
1877  PPCTargetStreamer &TStreamer =
1878  *static_cast<PPCTargetStreamer *>(
1879  getParser().getStreamer().getTargetStreamer());
1880  TStreamer.emitMachine(CPU);
1881 
1882  return false;
1883 }
1884 
1885 /// ParseDarwinDirectiveMachine (Mach-o platforms)
1886 /// ::= .machine cpu-identifier
1887 bool PPCAsmParser::ParseDarwinDirectiveMachine(SMLoc L) {
1888  MCAsmParser &Parser = getParser();
1889  if (Parser.getTok().isNot(AsmToken::Identifier) &&
1890  Parser.getTok().isNot(AsmToken::String))
1891  return Error(L, "unexpected token in directive");
1892 
1893  StringRef CPU = Parser.getTok().getIdentifier();
1894  Parser.Lex();
1895 
1896  // FIXME: this is only the 'default' set of cpu variants.
1897  // However we don't act on this information at present, this is simply
1898  // allowing parsing to proceed with minimal sanity checking.
1899  if (check(CPU != "ppc7400" && CPU != "ppc" && CPU != "ppc64", L,
1900  "unrecognized cpu type") ||
1901  check(isPPC64() && (CPU == "ppc7400" || CPU == "ppc"), L,
1902  "wrong cpu type specified for 64bit") ||
1903  check(!isPPC64() && CPU == "ppc64", L,
1904  "wrong cpu type specified for 32bit") ||
1905  parseToken(AsmToken::EndOfStatement))
1906  return addErrorSuffix(" in '.machine' directive");
1907  return false;
1908 }
1909 
1910 /// ParseDirectiveAbiVersion
1911 /// ::= .abiversion constant-expression
1912 bool PPCAsmParser::ParseDirectiveAbiVersion(SMLoc L) {
1913  int64_t AbiVersion;
1914  if (check(getParser().parseAbsoluteExpression(AbiVersion), L,
1915  "expected constant expression") ||
1916  parseToken(AsmToken::EndOfStatement))
1917  return addErrorSuffix(" in '.abiversion' directive");
1918 
1919  PPCTargetStreamer &TStreamer =
1920  *static_cast<PPCTargetStreamer *>(
1921  getParser().getStreamer().getTargetStreamer());
1922  TStreamer.emitAbiVersion(AbiVersion);
1923 
1924  return false;
1925 }
1926 
1927 /// ParseDirectiveLocalEntry
1928 /// ::= .localentry symbol, expression
1929 bool PPCAsmParser::ParseDirectiveLocalEntry(SMLoc L) {
1930  StringRef Name;
1931  if (getParser().parseIdentifier(Name))
1932  return Error(L, "expected identifier in '.localentry' directive");
1933 
1934  MCSymbolELF *Sym = cast<MCSymbolELF>(getContext().getOrCreateSymbol(Name));
1935  const MCExpr *Expr;
1936 
1937  if (parseToken(AsmToken::Comma) ||
1938  check(getParser().parseExpression(Expr), L, "expected expression") ||
1939  parseToken(AsmToken::EndOfStatement))
1940  return addErrorSuffix(" in '.localentry' directive");
1941 
1942  PPCTargetStreamer &TStreamer =
1943  *static_cast<PPCTargetStreamer *>(
1944  getParser().getStreamer().getTargetStreamer());
1945  TStreamer.emitLocalEntry(Sym, Expr);
1946 
1947  return false;
1948 }
1949 
1950 
1951 
1952 /// Force static initialization.
1957 }
1958 
1959 #define GET_REGISTER_MATCHER
1960 #define GET_MATCHER_IMPLEMENTATION
1961 #define GET_MNEMONIC_SPELL_CHECKER
1962 #include "PPCGenAsmMatcher.inc"
1963 
1964 // Define this matcher function after the auto-generated include so we
1965 // have the match class enum definitions.
1966 unsigned PPCAsmParser::validateTargetOperandClass(MCParsedAsmOperand &AsmOp,
1967  unsigned Kind) {
1968  // If the kind is a token for a literal immediate, check if our asm
1969  // operand matches. This is for InstAliases which have a fixed-value
1970  // immediate in the syntax.
1971  int64_t ImmVal;
1972  switch (Kind) {
1973  case MCK_0: ImmVal = 0; break;
1974  case MCK_1: ImmVal = 1; break;
1975  case MCK_2: ImmVal = 2; break;
1976  case MCK_3: ImmVal = 3; break;
1977  case MCK_4: ImmVal = 4; break;
1978  case MCK_5: ImmVal = 5; break;
1979  case MCK_6: ImmVal = 6; break;
1980  case MCK_7: ImmVal = 7; break;
1981  default: return Match_InvalidOperand;
1982  }
1983 
1984  PPCOperand &Op = static_cast<PPCOperand &>(AsmOp);
1985  if (Op.isImm() && Op.getImm() == ImmVal)
1986  return Match_Success;
1987 
1988  return Match_InvalidOperand;
1989 }
1990 
1991 const MCExpr *
1992 PPCAsmParser::applyModifierToExpr(const MCExpr *E,
1994  MCContext &Ctx) {
1995  switch (Variant) {
1997  return PPCMCExpr::create(PPCMCExpr::VK_PPC_LO, E, false, Ctx);
1999  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HI, E, false, Ctx);
2001  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HA, E, false, Ctx);
2003  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGH, E, false, Ctx);
2005  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHA, E, false, Ctx);
2007  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHER, E, false, Ctx);
2009  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHERA, E, false, Ctx);
2011  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHEST, E, false, Ctx);
2013  return PPCMCExpr::create(PPCMCExpr::VK_PPC_HIGHESTA, E, false, Ctx);
2014  default:
2015  return nullptr;
2016  }
2017 }
static bool isReg(const MCInst &MI, unsigned OpNo)
uint64_t CallInst * C
constexpr bool isUInt< 32 >(uint64_t x)
Definition: MathExtras.h:349
Represents a range in source code.
Definition: SMLoc.h:49
static const MCPhysReg XRegsNoX0[32]
void push_back(const T &Elt)
Definition: SmallVector.h:213
bool isImm() const
Definition: MCInst.h:59
static int64_t EvaluateCRExpr(const MCExpr *E)
LLVM_NODISCARD bool startswith_lower(StringRef Prefix) const
Check if this string starts with the given Prefix, ignoring case.
Definition: StringRef.cpp:47
StringRef getString() const
Get the string for the current token, this includes all characters (for example, the quotes on string...
Definition: MCAsmMacro.h:111
#define R4(n)
LLVMContext & Context
static const MCSymbolRefExpr * create(const MCSymbol *Symbol, MCContext &Ctx)
Definition: MCExpr.h:321
static const MCPhysReg SPERegs[32]
Compute iterated dominance frontiers using a linear time algorithm.
Definition: AllocatorList.h:24
static unsigned MatchRegisterName(StringRef Name)
bool isMacOSX() const
isMacOSX - Is this a Mac OS X triple.
Definition: Triple.h:442
VariantKind getKind() const
Definition: MCExpr.h:336
LLVM_NODISCARD bool equals_lower(StringRef RHS) const
equals_lower - Check for string equality, ignoring case.
Definition: StringRef.h:176
Generic assembler parser interface, for use by target specific assembly parsers.
Definition: MCAsmParser.h:110
static const MCPhysReg VFRegs[32]
static const PPCMCExpr * create(VariantKind Kind, const MCExpr *Expr, bool isDarwin, MCContext &Ctx)
Definition: PPCMCExpr.cpp:22
static MCOperand createExpr(const MCExpr *Val)
Definition: MCInst.h:137
MCTargetAsmParser - Generic interface to target specific assembly parsers.
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE size_t size() const
size - Get the string size.
Definition: StringRef.h:138
Multiplication.
Definition: MCExpr.h:433
Target & getThePPC32Target()
bool isNot(TokenKind K) const
Definition: MCAsmMacro.h:84
Opcode getOpcode() const
Get the kind of this unary expression.
Definition: MCExpr.h:402
const MCExpr * getLHS() const
Get the left-hand side expression of the binary operator.
Definition: MCExpr.h:562
static const MCPhysReg VRegs[32]
static const MCPhysReg CRBITRegs[32]
virtual const AsmToken & Lex()=0
Get the next AsmToken in the stream, possibly handling file inclusion first.
static const MCPhysReg FRegs[32]
constexpr bool isInt< 16 >(int64_t x)
Definition: MathExtras.h:306
#define R2(n)
const AsmToken & getTok() const
Get the current AsmToken from the stream.
Definition: MCAsmParser.cpp:34
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE const char * data() const
data - Get a pointer to the start of the string (which may not be null terminated).
Definition: StringRef.h:128
virtual void EmitInstruction(const MCInst &Inst, const MCSubtargetInfo &STI, bool PrintSchedInfo=false)
Emit the given Instruction into the current section.
Definition: MCStreamer.cpp:907
const Triple & getTargetTriple() const
StringRef getIdentifier() const
Get the identifier string for the current token, which should be an identifier or a string...
Definition: MCAsmMacro.h:100
static MCOperand createReg(unsigned Reg)
Definition: MCInst.h:116
Twine - A lightweight data structure for efficiently representing the concatenation of temporary valu...
Definition: Twine.h:81
const FeatureBitset & getFeatureBits() const
static const MCPhysReg VSSRegs[64]
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
Definition: APFloat.h:42
Base class for the full range of assembler expressions which are needed for parsing.
Definition: MCExpr.h:36
The access may reference the value stored in memory.
Target independent representation for an assembler token.
Definition: MCAsmMacro.h:22
Represent a reference to a symbol from inside an expression.
Definition: MCExpr.h:166
static const MCPhysReg CRRegs[8]
static bool isMem(const MachineInstr &MI, unsigned Op)
Definition: X86InstrInfo.h:160
MCParsedAsmOperand - This abstract class represents a source-level assembly instruction operand...
static const MCPhysReg XRegs[32]
Context object for machine code objects.
Definition: MCContext.h:63
std::pair< StringRef, StringRef > getToken(StringRef Source, StringRef Delimiters=" \\\)
getToken - This function extracts one token from source, ignoring any leading characters that appear ...
static unsigned QFRegs[32]
static const MCBinaryExpr * createSub(const MCExpr *LHS, const MCExpr *RHS, MCContext &Ctx)
Definition: MCExpr.h:544
RegisterMCAsmParser - Helper template for registering a target specific assembly parser, for use in the target machine initialization function.
const MCExpr * getRHS() const
Get the right-hand side expression of the binary operator.
Definition: MCExpr.h:565
ArchType getArch() const
getArch - Get the parsed architecture type of this triple.
Definition: Triple.h:285
Unary assembler expressions.
Definition: MCExpr.h:358
virtual void emitLocalEntry(MCSymbolELF *S, const MCExpr *LocalOffset)=0
SMLoc getLoc() const
Definition: MCAsmLexer.cpp:28
const MCExpr * getExpr() const
Definition: MCInst.h:96
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE StringRef substr(size_t Start, size_t N=npos) const
Return a reference to the substring from [Start, Start + N).
Definition: StringRef.h:598
Target & getThePPC64Target()
Unary expressions.
Definition: MCExpr.h:42
Instances of this class represent a single low-level machine instruction.
Definition: MCInst.h:161
static const MCBinaryExpr * create(Opcode Op, const MCExpr *LHS, const MCExpr *RHS, MCContext &Ctx, SMLoc Loc=SMLoc())
Definition: MCExpr.cpp:153
uint16_t MCPhysReg
An unsigned integer type large enough to represent all physical registers, but not necessarily virtua...
int64_t getImm() const
Definition: MCInst.h:76
const char * getPointer() const
Definition: SMLoc.h:35
Streaming machine code generation interface.
Definition: MCStreamer.h:183
static const MCUnaryExpr * create(Opcode Op, const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())
Definition: MCExpr.cpp:159
static GCRegistry::Add< OcamlGC > B("ocaml", "ocaml 3.10-compatible GC")
constexpr bool isUInt< 8 >(uint64_t x)
Definition: MathExtras.h:343
constexpr bool isPowerOf2_32(uint32_t Value)
Return true if the argument is a power of two > 0.
Definition: MathExtras.h:429
SMLoc getEndLoc() const
Definition: MCAsmLexer.cpp:32
static GCRegistry::Add< CoreCLRGC > E("coreclr", "CoreCLR-compatible GC")
virtual void emitAbiVersion(int AbiVersion)=0
Interface to description of machine instruction set.
Definition: MCInstrInfo.h:24
void LLVMInitializePowerPCAsmParser()
Force static initialization.
static void print(raw_ostream &Out, object::Archive::Kind Kind, T Val)
unsigned getNumOperands() const
Definition: MCInst.h:184
bool isIntN(unsigned N, int64_t x)
Checks if an signed integer fits into the given (dynamic) bit width.
Definition: MathExtras.h:398
Binary assembler expressions.
Definition: MCExpr.h:415
size_t size() const
Definition: SmallVector.h:53
void setLoc(SMLoc loc)
Definition: MCInst.h:179
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
static void addNegOperand(MCInst &Inst, MCOperand &Op, MCContext &Ctx)
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
static const MCUnaryExpr * createMinus(const MCExpr *Expr, MCContext &Ctx, SMLoc Loc=SMLoc())
Definition: MCExpr.h:385
std::enable_if< std::numeric_limits< T >::is_signed, bool >::type getAsInteger(unsigned Radix, T &Result) const
Parse the current string as an integer of the specified radix.
Definition: StringRef.h:497
void setOpcode(unsigned Op)
Definition: MCInst.h:173
#define R6(n)
const MCSymbol & getSymbol() const
Definition: MCExpr.h:334
ExprKind getKind() const
Definition: MCExpr.h:73
const MCOperand & getOperand(unsigned i) const
Definition: MCInst.h:182
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE StringRef slice(size_t Start, size_t End) const
Return a reference to the substring from [Start, End).
Definition: StringRef.h:710
void swap(llvm::BitVector &LHS, llvm::BitVector &RHS)
Implement std::swap in terms of BitVector swap.
Definition: BitVector.h:924
Target & getThePPC64LETarget()
static unsigned getReg(const void *D, unsigned RC, unsigned RegNo)
Base class for user error types.
Definition: Error.h:339
static SMLoc getFromPointer(const char *Ptr)
Definition: SMLoc.h:37
static const MCPhysReg VSRegs[64]
static const size_t npos
Definition: StringRef.h:51
MCExpr const & getExpr(MCExpr const &Expr)
#define N
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
Generic base class for all target subtargets.
References to labels and assigned expressions.
Definition: MCExpr.h:41
Unary minus.
Definition: MCExpr.h:362
constexpr bool isUInt< 16 >(uint64_t x)
Definition: MathExtras.h:346
static const MCPhysReg RRegs[32]
Opcode getOpcode() const
Get the kind of this binary expression.
Definition: MCExpr.h:559
StringRef getName() const
getName - Get the symbol name.
Definition: MCSymbol.h:203
const unsigned Kind
assert(ImpDefSCC.getReg()==AMDGPU::SCC &&ImpDefSCC.isDef())
static bool isRunOfOnes(unsigned Val, unsigned &MB, unsigned &ME)
Returns true iff Val consists of one contiguous run of 1s with any number of 0s on either side...
const MCExpr * getSubExpr() const
Get the child of this unary expression.
Definition: MCExpr.h:405
LLVM Value Representation.
Definition: Value.h:73
constexpr char Size[]
Key for Kernel::Arg::Metadata::mSize.
static const MCPhysReg VSFRegs[64]
Constant expressions.
Definition: MCExpr.h:40
Binary expressions.
Definition: MCExpr.h:39
static unsigned MatchRegisterName(StringRef Name)
Maps from the set of all register names to a register number.
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:46
Subtraction.
Definition: MCExpr.h:439
#define LLVM_FALLTHROUGH
LLVM_FALLTHROUGH - Mark fallthrough cases in switch statements.
Definition: Compiler.h:238
void addOperand(const MCOperand &Op)
Definition: MCInst.h:186
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:49
Target specific expression.
Definition: MCExpr.h:43
virtual void emitMachine(StringRef CPU)=0
Represents a location in source code.
Definition: SMLoc.h:24
unsigned getOpcode() const
Definition: MCInst.h:174
bool isUIntN(unsigned N, uint64_t x)
Checks if an unsigned integer fits into the given (dynamic) bit width.
Definition: MathExtras.h:393
LLVM_NODISCARD LLVM_ATTRIBUTE_ALWAYS_INLINE size_t find(char C, size_t From=0) const
Search for the first character C in the string.
Definition: StringRef.h:298
Instances of this class represent operands of the MCInst class.
Definition: MCInst.h:35
static MCOperand createImm(int64_t Val)
Definition: MCInst.h:123
static std::string PPCMnemonicSpellCheck(StringRef S, uint64_t FBS, unsigned VariantID=0)
static const MCPhysReg RRegsNoR0[32]