LLVM  3.7.0
Record.cpp
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1 //===- Record.cpp - Record implementation ---------------------------------===//
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 // Implement the tablegen record classes.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/TableGen/Record.h"
15 #include "llvm/ADT/DenseMap.h"
16 #include "llvm/ADT/FoldingSet.h"
17 #include "llvm/ADT/Hashing.h"
18 #include "llvm/ADT/STLExtras.h"
19 #include "llvm/ADT/SmallVector.h"
20 #include "llvm/ADT/StringExtras.h"
21 #include "llvm/ADT/StringMap.h"
22 #include "llvm/Support/DataTypes.h"
24 #include "llvm/Support/Format.h"
25 #include "llvm/TableGen/Error.h"
26 
27 using namespace llvm;
28 
29 //===----------------------------------------------------------------------===//
30 // std::string wrapper for DenseMap purposes
31 //===----------------------------------------------------------------------===//
32 
33 namespace llvm {
34 
35 /// TableGenStringKey - This is a wrapper for std::string suitable for
36 /// using as a key to a DenseMap. Because there isn't a particularly
37 /// good way to indicate tombstone or empty keys for strings, we want
38 /// to wrap std::string to indicate that this is a "special" string
39 /// not expected to take on certain values (those of the tombstone and
40 /// empty keys). This makes things a little safer as it clarifies
41 /// that DenseMap is really not appropriate for general strings.
42 
44 public:
45  TableGenStringKey(const std::string &str) : data(str) {}
46  TableGenStringKey(const char *str) : data(str) {}
47 
48  const std::string &str() const { return data; }
49 
51  using llvm::hash_value;
52  return hash_value(Value.str());
53  }
54 private:
55  std::string data;
56 };
57 
58 /// Specialize DenseMapInfo for TableGenStringKey.
59 template<> struct DenseMapInfo<TableGenStringKey> {
60  static inline TableGenStringKey getEmptyKey() {
61  TableGenStringKey Empty("<<<EMPTY KEY>>>");
62  return Empty;
63  }
65  TableGenStringKey Tombstone("<<<TOMBSTONE KEY>>>");
66  return Tombstone;
67  }
68  static unsigned getHashValue(const TableGenStringKey& Val) {
69  using llvm::hash_value;
70  return hash_value(Val);
71  }
72  static bool isEqual(const TableGenStringKey& LHS,
73  const TableGenStringKey& RHS) {
74  return LHS.str() == RHS.str();
75  }
76 };
77 
78 } // namespace llvm
79 
80 //===----------------------------------------------------------------------===//
81 // Type implementations
82 //===----------------------------------------------------------------------===//
83 
84 BitRecTy BitRecTy::Shared;
85 IntRecTy IntRecTy::Shared;
86 StringRecTy StringRecTy::Shared;
87 DagRecTy DagRecTy::Shared;
88 
89 void RecTy::dump() const { print(errs()); }
90 
92  if (!ListTy)
93  ListTy.reset(new ListRecTy(this));
94  return ListTy.get();
95 }
96 
97 bool RecTy::typeIsConvertibleTo(const RecTy *RHS) const {
98  assert(RHS && "NULL pointer");
99  return Kind == RHS->getRecTyKind();
100 }
101 
102 bool BitRecTy::typeIsConvertibleTo(const RecTy *RHS) const{
104  return true;
105  if (const BitsRecTy *BitsTy = dyn_cast<BitsRecTy>(RHS))
106  return BitsTy->getNumBits() == 1;
107  return false;
108 }
109 
110 BitsRecTy *BitsRecTy::get(unsigned Sz) {
111  static std::vector<std::unique_ptr<BitsRecTy>> Shared;
112  if (Sz >= Shared.size())
113  Shared.resize(Sz + 1);
114  std::unique_ptr<BitsRecTy> &Ty = Shared[Sz];
115  if (!Ty)
116  Ty.reset(new BitsRecTy(Sz));
117  return Ty.get();
118 }
119 
120 std::string BitsRecTy::getAsString() const {
121  return "bits<" + utostr(Size) + ">";
122 }
123 
124 bool BitsRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
125  if (RecTy::typeIsConvertibleTo(RHS)) //argument and the sender are same type
126  return cast<BitsRecTy>(RHS)->Size == Size;
127  RecTyKind kind = RHS->getRecTyKind();
128  return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind);
129 }
130 
131 bool IntRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
132  RecTyKind kind = RHS->getRecTyKind();
133  return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind;
134 }
135 
136 std::string StringRecTy::getAsString() const {
137  return "string";
138 }
139 
140 std::string ListRecTy::getAsString() const {
141  return "list<" + Ty->getAsString() + ">";
142 }
143 
144 bool ListRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
145  if (const auto *ListTy = dyn_cast<ListRecTy>(RHS))
146  return Ty->typeIsConvertibleTo(ListTy->getElementType());
147  return false;
148 }
149 
150 std::string DagRecTy::getAsString() const {
151  return "dag";
152 }
153 
155  return dyn_cast<RecordRecTy>(R->getDefInit()->getType());
156 }
157 
158 std::string RecordRecTy::getAsString() const {
159  return Rec->getName();
160 }
161 
162 bool RecordRecTy::typeIsConvertibleTo(const RecTy *RHS) const {
163  const RecordRecTy *RTy = dyn_cast<RecordRecTy>(RHS);
164  if (!RTy)
165  return false;
166 
167  if (RTy->getRecord() == Rec || Rec->isSubClassOf(RTy->getRecord()))
168  return true;
169 
170  for (Record *SC : RTy->getRecord()->getSuperClasses())
171  if (Rec->isSubClassOf(SC))
172  return true;
173 
174  return false;
175 }
176 
177 /// resolveTypes - Find a common type that T1 and T2 convert to.
178 /// Return null if no such type exists.
179 ///
181  if (T1->typeIsConvertibleTo(T2))
182  return T2;
183  if (T2->typeIsConvertibleTo(T1))
184  return T1;
185 
186  // If one is a Record type, check superclasses
187  if (RecordRecTy *RecTy1 = dyn_cast<RecordRecTy>(T1)) {
188  // See if T2 inherits from a type T1 also inherits from
189  for (Record *SuperRec1 : RecTy1->getRecord()->getSuperClasses()) {
190  RecordRecTy *SuperRecTy1 = RecordRecTy::get(SuperRec1);
191  RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
192  if (NewType1)
193  return NewType1;
194  }
195  }
196  if (RecordRecTy *RecTy2 = dyn_cast<RecordRecTy>(T2)) {
197  // See if T1 inherits from a type T2 also inherits from
198  for (Record *SuperRec2 : RecTy2->getRecord()->getSuperClasses()) {
199  RecordRecTy *SuperRecTy2 = RecordRecTy::get(SuperRec2);
200  RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
201  if (NewType2)
202  return NewType2;
203  }
204  }
205  return nullptr;
206 }
207 
208 
209 //===----------------------------------------------------------------------===//
210 // Initializer implementations
211 //===----------------------------------------------------------------------===//
212 
213 void Init::anchor() { }
214 void Init::dump() const { return print(errs()); }
215 
217  static UnsetInit TheInit;
218  return &TheInit;
219 }
220 
222  if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
223  SmallVector<Init *, 16> NewBits(BRT->getNumBits());
224 
225  for (unsigned i = 0; i != BRT->getNumBits(); ++i)
226  NewBits[i] = UnsetInit::get();
227 
228  return BitsInit::get(NewBits);
229  }
230 
231  // All other types can just be returned.
232  return const_cast<UnsetInit *>(this);
233 }
234 
236  static BitInit True(true);
237  static BitInit False(false);
238 
239  return V ? &True : &False;
240 }
241 
243  if (isa<BitRecTy>(Ty))
244  return const_cast<BitInit *>(this);
245 
246  if (isa<IntRecTy>(Ty))
247  return IntInit::get(getValue());
248 
249  if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
250  // Can only convert single bit.
251  if (BRT->getNumBits() == 1)
252  return BitsInit::get(const_cast<BitInit *>(this));
253  }
254 
255  return nullptr;
256 }
257 
258 static void
260  ID.AddInteger(Range.size());
261 
262  for (Init *I : Range)
263  ID.AddPointer(I);
264 }
265 
267  static FoldingSet<BitsInit> ThePool;
268  static std::vector<std::unique_ptr<BitsInit>> TheActualPool;
269 
271  ProfileBitsInit(ID, Range);
272 
273  void *IP = nullptr;
274  if (BitsInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
275  return I;
276 
277  BitsInit *I = new BitsInit(Range);
278  ThePool.InsertNode(I, IP);
279  TheActualPool.push_back(std::unique_ptr<BitsInit>(I));
280  return I;
281 }
282 
284  ProfileBitsInit(ID, Bits);
285 }
286 
288  if (isa<BitRecTy>(Ty)) {
289  if (getNumBits() != 1) return nullptr; // Only accept if just one bit!
290  return getBit(0);
291  }
292 
293  if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
294  // If the number of bits is right, return it. Otherwise we need to expand
295  // or truncate.
296  if (getNumBits() != BRT->getNumBits()) return nullptr;
297  return const_cast<BitsInit *>(this);
298  }
299 
300  if (isa<IntRecTy>(Ty)) {
301  int64_t Result = 0;
302  for (unsigned i = 0, e = getNumBits(); i != e; ++i)
303  if (auto *Bit = dyn_cast<BitInit>(getBit(i)))
304  Result |= static_cast<int64_t>(Bit->getValue()) << i;
305  else
306  return nullptr;
307  return IntInit::get(Result);
308  }
309 
310  return nullptr;
311 }
312 
313 Init *
314 BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
315  SmallVector<Init *, 16> NewBits(Bits.size());
316 
317  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
318  if (Bits[i] >= getNumBits())
319  return nullptr;
320  NewBits[i] = getBit(Bits[i]);
321  }
322  return BitsInit::get(NewBits);
323 }
324 
325 std::string BitsInit::getAsString() const {
326  std::string Result = "{ ";
327  for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
328  if (i) Result += ", ";
329  if (Init *Bit = getBit(e-i-1))
330  Result += Bit->getAsString();
331  else
332  Result += "*";
333  }
334  return Result + " }";
335 }
336 
337 // Fix bit initializer to preserve the behavior that bit reference from a unset
338 // bits initializer will resolve into VarBitInit to keep the field name and bit
339 // number used in targets with fixed insn length.
340 static Init *fixBitInit(const RecordVal *RV, Init *Before, Init *After) {
341  if (RV || !isa<UnsetInit>(After))
342  return After;
343  return Before;
344 }
345 
346 // resolveReferences - If there are any field references that refer to fields
347 // that have been filled in, we can propagate the values now.
348 //
350  bool Changed = false;
352 
353  Init *CachedInit = nullptr;
354  Init *CachedBitVar = nullptr;
355  bool CachedBitVarChanged = false;
356 
357  for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
358  Init *CurBit = Bits[i];
359  Init *CurBitVar = CurBit->getBitVar();
360 
361  NewBits[i] = CurBit;
362 
363  if (CurBitVar == CachedBitVar) {
364  if (CachedBitVarChanged) {
365  Init *Bit = CachedInit->getBit(CurBit->getBitNum());
366  NewBits[i] = fixBitInit(RV, CurBit, Bit);
367  }
368  continue;
369  }
370  CachedBitVar = CurBitVar;
371  CachedBitVarChanged = false;
372 
373  Init *B;
374  do {
375  B = CurBitVar;
376  CurBitVar = CurBitVar->resolveReferences(R, RV);
377  CachedBitVarChanged |= B != CurBitVar;
378  Changed |= B != CurBitVar;
379  } while (B != CurBitVar);
380  CachedInit = CurBitVar;
381 
382  if (CachedBitVarChanged) {
383  Init *Bit = CurBitVar->getBit(CurBit->getBitNum());
384  NewBits[i] = fixBitInit(RV, CurBit, Bit);
385  }
386  }
387 
388  if (Changed)
389  return BitsInit::get(NewBits);
390 
391  return const_cast<BitsInit *>(this);
392 }
393 
394 IntInit *IntInit::get(int64_t V) {
396 
397  std::unique_ptr<IntInit> &I = ThePool[V];
398  if (!I) I.reset(new IntInit(V));
399  return I.get();
400 }
401 
402 std::string IntInit::getAsString() const {
403  return itostr(Value);
404 }
405 
406 /// canFitInBitfield - Return true if the number of bits is large enough to hold
407 /// the integer value.
408 static bool canFitInBitfield(int64_t Value, unsigned NumBits) {
409  // For example, with NumBits == 4, we permit Values from [-7 .. 15].
410  return (NumBits >= sizeof(Value) * 8) ||
411  (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1);
412 }
413 
415  if (isa<IntRecTy>(Ty))
416  return const_cast<IntInit *>(this);
417 
418  if (isa<BitRecTy>(Ty)) {
419  int64_t Val = getValue();
420  if (Val != 0 && Val != 1) return nullptr; // Only accept 0 or 1 for a bit!
421  return BitInit::get(Val != 0);
422  }
423 
424  if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
425  int64_t Value = getValue();
426  // Make sure this bitfield is large enough to hold the integer value.
427  if (!canFitInBitfield(Value, BRT->getNumBits()))
428  return nullptr;
429 
430  SmallVector<Init *, 16> NewBits(BRT->getNumBits());
431  for (unsigned i = 0; i != BRT->getNumBits(); ++i)
432  NewBits[i] = BitInit::get(Value & (1LL << i));
433 
434  return BitsInit::get(NewBits);
435  }
436 
437  return nullptr;
438 }
439 
440 Init *
441 IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
442  SmallVector<Init *, 16> NewBits(Bits.size());
443 
444  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
445  if (Bits[i] >= 64)
446  return nullptr;
447 
448  NewBits[i] = BitInit::get(Value & (INT64_C(1) << Bits[i]));
449  }
450  return BitsInit::get(NewBits);
451 }
452 
455 
456  std::unique_ptr<StringInit> &I = ThePool[V];
457  if (!I) I.reset(new StringInit(V));
458  return I.get();
459 }
460 
462  if (isa<StringRecTy>(Ty))
463  return const_cast<StringInit *>(this);
464 
465  return nullptr;
466 }
467 
469  ArrayRef<Init *> Range,
470  RecTy *EltTy) {
471  ID.AddInteger(Range.size());
472  ID.AddPointer(EltTy);
473 
474  for (Init *I : Range)
475  ID.AddPointer(I);
476 }
477 
479  static FoldingSet<ListInit> ThePool;
480  static std::vector<std::unique_ptr<ListInit>> TheActualPool;
481 
483  ProfileListInit(ID, Range, EltTy);
484 
485  void *IP = nullptr;
486  if (ListInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
487  return I;
488 
489  ListInit *I = new ListInit(Range, EltTy);
490  ThePool.InsertNode(I, IP);
491  TheActualPool.push_back(std::unique_ptr<ListInit>(I));
492  return I;
493 }
494 
496  RecTy *EltTy = cast<ListRecTy>(getType())->getElementType();
497 
498  ProfileListInit(ID, Values, EltTy);
499 }
500 
502  if (auto *LRT = dyn_cast<ListRecTy>(Ty)) {
503  std::vector<Init*> Elements;
504 
505  // Verify that all of the elements of the list are subclasses of the
506  // appropriate class!
507  for (Init *I : getValues())
508  if (Init *CI = I->convertInitializerTo(LRT->getElementType()))
509  Elements.push_back(CI);
510  else
511  return nullptr;
512 
513  if (isa<ListRecTy>(getType()))
514  return ListInit::get(Elements, Ty);
515  }
516 
517  return nullptr;
518 }
519 
520 Init *
521 ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) const {
522  std::vector<Init*> Vals;
523  for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
524  if (Elements[i] >= size())
525  return nullptr;
526  Vals.push_back(getElement(Elements[i]));
527  }
528  return ListInit::get(Vals, getType());
529 }
530 
532  assert(i < Values.size() && "List element index out of range!");
533  DefInit *DI = dyn_cast<DefInit>(Values[i]);
534  if (!DI)
535  PrintFatalError("Expected record in list!");
536  return DI->getDef();
537 }
538 
540  std::vector<Init*> Resolved;
541  Resolved.reserve(size());
542  bool Changed = false;
543 
544  for (Init *CurElt : getValues()) {
545  Init *E;
546 
547  do {
548  E = CurElt;
549  CurElt = CurElt->resolveReferences(R, RV);
550  Changed |= E != CurElt;
551  } while (E != CurElt);
552  Resolved.push_back(E);
553  }
554 
555  if (Changed)
556  return ListInit::get(Resolved, getType());
557  return const_cast<ListInit *>(this);
558 }
559 
561  unsigned Elt) const {
562  if (Elt >= size())
563  return nullptr; // Out of range reference.
564  Init *E = getElement(Elt);
565  // If the element is set to some value, or if we are resolving a reference
566  // to a specific variable and that variable is explicitly unset, then
567  // replace the VarListElementInit with it.
568  if (IRV || !isa<UnsetInit>(E))
569  return E;
570  return nullptr;
571 }
572 
573 std::string ListInit::getAsString() const {
574  std::string Result = "[";
575  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
576  if (i) Result += ", ";
577  Result += Values[i]->getAsString();
578  }
579  return Result + "]";
580 }
581 
583  unsigned Elt) const {
584  Init *Resolved = resolveReferences(R, IRV);
585  OpInit *OResolved = dyn_cast<OpInit>(Resolved);
586  if (OResolved) {
587  Resolved = OResolved->Fold(&R, nullptr);
588  }
589 
590  if (Resolved != this) {
591  TypedInit *Typed = cast<TypedInit>(Resolved);
592  if (Init *New = Typed->resolveListElementReference(R, IRV, Elt))
593  return New;
594  return VarListElementInit::get(Typed, Elt);
595  }
596 
597  return nullptr;
598 }
599 
600 Init *OpInit::getBit(unsigned Bit) const {
601  if (getType() == BitRecTy::get())
602  return const_cast<OpInit*>(this);
603  return VarBitInit::get(const_cast<OpInit*>(this), Bit);
604 }
605 
607  typedef std::pair<std::pair<unsigned, Init *>, RecTy *> Key;
609 
610  Key TheKey(std::make_pair(std::make_pair(opc, lhs), Type));
611 
612  std::unique_ptr<UnOpInit> &I = ThePool[TheKey];
613  if (!I) I.reset(new UnOpInit(opc, lhs, Type));
614  return I.get();
615 }
616 
617 Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
618  switch (getOpcode()) {
619  case CAST: {
620  if (isa<StringRecTy>(getType())) {
621  if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
622  return LHSs;
623 
624  if (DefInit *LHSd = dyn_cast<DefInit>(LHS))
625  return StringInit::get(LHSd->getAsString());
626 
627  if (IntInit *LHSi = dyn_cast<IntInit>(LHS))
628  return StringInit::get(LHSi->getAsString());
629  } else {
630  if (StringInit *LHSs = dyn_cast<StringInit>(LHS)) {
631  std::string Name = LHSs->getValue();
632 
633  // From TGParser::ParseIDValue
634  if (CurRec) {
635  if (const RecordVal *RV = CurRec->getValue(Name)) {
636  if (RV->getType() != getType())
637  PrintFatalError("type mismatch in cast");
638  return VarInit::get(Name, RV->getType());
639  }
640 
641  Init *TemplateArgName = QualifyName(*CurRec, CurMultiClass, Name,
642  ":");
643 
644  if (CurRec->isTemplateArg(TemplateArgName)) {
645  const RecordVal *RV = CurRec->getValue(TemplateArgName);
646  assert(RV && "Template arg doesn't exist??");
647 
648  if (RV->getType() != getType())
649  PrintFatalError("type mismatch in cast");
650 
651  return VarInit::get(TemplateArgName, RV->getType());
652  }
653  }
654 
655  if (CurMultiClass) {
656  Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name,
657  "::");
658 
659  if (CurMultiClass->Rec.isTemplateArg(MCName)) {
660  const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
661  assert(RV && "Template arg doesn't exist??");
662 
663  if (RV->getType() != getType())
664  PrintFatalError("type mismatch in cast");
665 
666  return VarInit::get(MCName, RV->getType());
667  }
668  }
669  assert(CurRec && "NULL pointer");
670  if (Record *D = (CurRec->getRecords()).getDef(Name))
671  return DefInit::get(D);
672 
673  PrintFatalError(CurRec->getLoc(),
674  "Undefined reference:'" + Name + "'\n");
675  }
676  }
677  break;
678  }
679  case HEAD: {
680  if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
681  assert(!LHSl->empty() && "Empty list in head");
682  return LHSl->getElement(0);
683  }
684  break;
685  }
686  case TAIL: {
687  if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) {
688  assert(!LHSl->empty() && "Empty list in tail");
689  // Note the +1. We can't just pass the result of getValues()
690  // directly.
691  return ListInit::get(LHSl->getValues().slice(1), LHSl->getType());
692  }
693  break;
694  }
695  case EMPTY: {
696  if (ListInit *LHSl = dyn_cast<ListInit>(LHS))
697  return IntInit::get(LHSl->empty());
698  if (StringInit *LHSs = dyn_cast<StringInit>(LHS))
699  return IntInit::get(LHSs->getValue().empty());
700 
701  break;
702  }
703  }
704  return const_cast<UnOpInit *>(this);
705 }
706 
708  Init *lhs = LHS->resolveReferences(R, RV);
709 
710  if (LHS != lhs)
711  return (UnOpInit::get(getOpcode(), lhs, getType()))->Fold(&R, nullptr);
712  return Fold(&R, nullptr);
713 }
714 
715 std::string UnOpInit::getAsString() const {
716  std::string Result;
717  switch (Opc) {
718  case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
719  case HEAD: Result = "!head"; break;
720  case TAIL: Result = "!tail"; break;
721  case EMPTY: Result = "!empty"; break;
722  }
723  return Result + "(" + LHS->getAsString() + ")";
724 }
725 
727  Init *rhs, RecTy *Type) {
728  typedef std::pair<
729  std::pair<std::pair<unsigned, Init *>, Init *>,
730  RecTy *
731  > Key;
732 
734 
735  Key TheKey(std::make_pair(std::make_pair(std::make_pair(opc, lhs), rhs),
736  Type));
737 
738  std::unique_ptr<BinOpInit> &I = ThePool[TheKey];
739  if (!I) I.reset(new BinOpInit(opc, lhs, rhs, Type));
740  return I.get();
741 }
742 
743 Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
744  switch (getOpcode()) {
745  case CONCAT: {
746  DagInit *LHSs = dyn_cast<DagInit>(LHS);
747  DagInit *RHSs = dyn_cast<DagInit>(RHS);
748  if (LHSs && RHSs) {
749  DefInit *LOp = dyn_cast<DefInit>(LHSs->getOperator());
750  DefInit *ROp = dyn_cast<DefInit>(RHSs->getOperator());
751  if (!LOp || !ROp || LOp->getDef() != ROp->getDef())
752  PrintFatalError("Concated Dag operators do not match!");
753  std::vector<Init*> Args;
754  std::vector<std::string> ArgNames;
755  for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
756  Args.push_back(LHSs->getArg(i));
757  ArgNames.push_back(LHSs->getArgName(i));
758  }
759  for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
760  Args.push_back(RHSs->getArg(i));
761  ArgNames.push_back(RHSs->getArgName(i));
762  }
763  return DagInit::get(LHSs->getOperator(), "", Args, ArgNames);
764  }
765  break;
766  }
767  case LISTCONCAT: {
768  ListInit *LHSs = dyn_cast<ListInit>(LHS);
769  ListInit *RHSs = dyn_cast<ListInit>(RHS);
770  if (LHSs && RHSs) {
771  std::vector<Init *> Args;
772  Args.insert(Args.end(), LHSs->begin(), LHSs->end());
773  Args.insert(Args.end(), RHSs->begin(), RHSs->end());
774  return ListInit::get(
775  Args, cast<ListRecTy>(LHSs->getType())->getElementType());
776  }
777  break;
778  }
779  case STRCONCAT: {
780  StringInit *LHSs = dyn_cast<StringInit>(LHS);
781  StringInit *RHSs = dyn_cast<StringInit>(RHS);
782  if (LHSs && RHSs)
783  return StringInit::get(LHSs->getValue() + RHSs->getValue());
784  break;
785  }
786  case EQ: {
787  // try to fold eq comparison for 'bit' and 'int', otherwise fallback
788  // to string objects.
789  IntInit *L =
790  dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get()));
791  IntInit *R =
792  dyn_cast_or_null<IntInit>(RHS->convertInitializerTo(IntRecTy::get()));
793 
794  if (L && R)
795  return IntInit::get(L->getValue() == R->getValue());
796 
797  StringInit *LHSs = dyn_cast<StringInit>(LHS);
798  StringInit *RHSs = dyn_cast<StringInit>(RHS);
799 
800  // Make sure we've resolved
801  if (LHSs && RHSs)
802  return IntInit::get(LHSs->getValue() == RHSs->getValue());
803 
804  break;
805  }
806  case ADD:
807  case AND:
808  case SHL:
809  case SRA:
810  case SRL: {
811  IntInit *LHSi =
812  dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get()));
813  IntInit *RHSi =
814  dyn_cast_or_null<IntInit>(RHS->convertInitializerTo(IntRecTy::get()));
815  if (LHSi && RHSi) {
816  int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
817  int64_t Result;
818  switch (getOpcode()) {
819  default: llvm_unreachable("Bad opcode!");
820  case ADD: Result = LHSv + RHSv; break;
821  case AND: Result = LHSv & RHSv; break;
822  case SHL: Result = LHSv << RHSv; break;
823  case SRA: Result = LHSv >> RHSv; break;
824  case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
825  }
826  return IntInit::get(Result);
827  }
828  break;
829  }
830  }
831  return const_cast<BinOpInit *>(this);
832 }
833 
835  Init *lhs = LHS->resolveReferences(R, RV);
836  Init *rhs = RHS->resolveReferences(R, RV);
837 
838  if (LHS != lhs || RHS != rhs)
839  return (BinOpInit::get(getOpcode(), lhs, rhs, getType()))->Fold(&R,nullptr);
840  return Fold(&R, nullptr);
841 }
842 
843 std::string BinOpInit::getAsString() const {
844  std::string Result;
845  switch (Opc) {
846  case CONCAT: Result = "!con"; break;
847  case ADD: Result = "!add"; break;
848  case AND: Result = "!and"; break;
849  case SHL: Result = "!shl"; break;
850  case SRA: Result = "!sra"; break;
851  case SRL: Result = "!srl"; break;
852  case EQ: Result = "!eq"; break;
853  case LISTCONCAT: Result = "!listconcat"; break;
854  case STRCONCAT: Result = "!strconcat"; break;
855  }
856  return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
857 }
858 
860  RecTy *Type) {
861  typedef std::pair<
862  std::pair<
863  std::pair<std::pair<unsigned, RecTy *>, Init *>,
864  Init *
865  >,
866  Init *
867  > Key;
868 
870 
871  Key TheKey(std::make_pair(std::make_pair(std::make_pair(std::make_pair(opc,
872  Type),
873  lhs),
874  mhs),
875  rhs));
876 
877  std::unique_ptr<TernOpInit> &I = ThePool[TheKey];
878  if (!I) I.reset(new TernOpInit(opc, lhs, mhs, rhs, Type));
879  return I.get();
880 }
881 
882 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
883  Record *CurRec, MultiClass *CurMultiClass);
884 
885 static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
886  RecTy *Type, Record *CurRec,
887  MultiClass *CurMultiClass) {
888  // If this is a dag, recurse
889  if (auto *TArg = dyn_cast<TypedInit>(Arg))
890  if (isa<DagRecTy>(TArg->getType()))
891  return ForeachHelper(LHS, Arg, RHSo, Type, CurRec, CurMultiClass);
892 
893  std::vector<Init *> NewOperands;
894  for (unsigned i = 0; i < RHSo->getNumOperands(); ++i) {
895  if (auto *RHSoo = dyn_cast<OpInit>(RHSo->getOperand(i))) {
896  if (Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
897  Type, CurRec, CurMultiClass))
898  NewOperands.push_back(Result);
899  else
900  NewOperands.push_back(Arg);
901  } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
902  NewOperands.push_back(Arg);
903  } else {
904  NewOperands.push_back(RHSo->getOperand(i));
905  }
906  }
907 
908  // Now run the operator and use its result as the new leaf
909  const OpInit *NewOp = RHSo->clone(NewOperands);
910  Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
911  return (NewVal != NewOp) ? NewVal : nullptr;
912 }
913 
914 static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
915  Record *CurRec, MultiClass *CurMultiClass) {
916 
917  OpInit *RHSo = dyn_cast<OpInit>(RHS);
918 
919  if (!RHSo)
920  PrintFatalError(CurRec->getLoc(), "!foreach requires an operator\n");
921 
922  TypedInit *LHSt = dyn_cast<TypedInit>(LHS);
923 
924  if (!LHSt)
925  PrintFatalError(CurRec->getLoc(), "!foreach requires typed variable\n");
926 
927  DagInit *MHSd = dyn_cast<DagInit>(MHS);
928  if (MHSd && isa<DagRecTy>(Type)) {
929  Init *Val = MHSd->getOperator();
930  if (Init *Result = EvaluateOperation(RHSo, LHS, Val,
931  Type, CurRec, CurMultiClass))
932  Val = Result;
933 
934  std::vector<std::pair<Init *, std::string> > args;
935  for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
936  Init *Arg = MHSd->getArg(i);
937  std::string ArgName = MHSd->getArgName(i);
938 
939  // Process args
940  if (Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
941  CurRec, CurMultiClass))
942  Arg = Result;
943 
944  // TODO: Process arg names
945  args.push_back(std::make_pair(Arg, ArgName));
946  }
947 
948  return DagInit::get(Val, "", args);
949  }
950 
951  ListInit *MHSl = dyn_cast<ListInit>(MHS);
952  if (MHSl && isa<ListRecTy>(Type)) {
953  std::vector<Init *> NewOperands;
954  std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
955 
956  for (Init *&Item : NewList) {
957  NewOperands.clear();
958  for(unsigned i = 0; i < RHSo->getNumOperands(); ++i) {
959  // First, replace the foreach variable with the list item
960  if (LHS->getAsString() == RHSo->getOperand(i)->getAsString())
961  NewOperands.push_back(Item);
962  else
963  NewOperands.push_back(RHSo->getOperand(i));
964  }
965 
966  // Now run the operator and use its result as the new list item
967  const OpInit *NewOp = RHSo->clone(NewOperands);
968  Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
969  if (NewItem != NewOp)
970  Item = NewItem;
971  }
972  return ListInit::get(NewList, MHSl->getType());
973  }
974  return nullptr;
975 }
976 
977 Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const {
978  switch (getOpcode()) {
979  case SUBST: {
980  DefInit *LHSd = dyn_cast<DefInit>(LHS);
981  VarInit *LHSv = dyn_cast<VarInit>(LHS);
982  StringInit *LHSs = dyn_cast<StringInit>(LHS);
983 
984  DefInit *MHSd = dyn_cast<DefInit>(MHS);
985  VarInit *MHSv = dyn_cast<VarInit>(MHS);
986  StringInit *MHSs = dyn_cast<StringInit>(MHS);
987 
988  DefInit *RHSd = dyn_cast<DefInit>(RHS);
989  VarInit *RHSv = dyn_cast<VarInit>(RHS);
990  StringInit *RHSs = dyn_cast<StringInit>(RHS);
991 
992  if (LHSd && MHSd && RHSd) {
993  Record *Val = RHSd->getDef();
994  if (LHSd->getAsString() == RHSd->getAsString())
995  Val = MHSd->getDef();
996  return DefInit::get(Val);
997  }
998  if (LHSv && MHSv && RHSv) {
999  std::string Val = RHSv->getName();
1000  if (LHSv->getAsString() == RHSv->getAsString())
1001  Val = MHSv->getName();
1002  return VarInit::get(Val, getType());
1003  }
1004  if (LHSs && MHSs && RHSs) {
1005  std::string Val = RHSs->getValue();
1006 
1007  std::string::size_type found;
1008  std::string::size_type idx = 0;
1009  while (true) {
1010  found = Val.find(LHSs->getValue(), idx);
1011  if (found == std::string::npos)
1012  break;
1013  Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
1014  idx = found + MHSs->getValue().size();
1015  }
1016 
1017  return StringInit::get(Val);
1018  }
1019  break;
1020  }
1021 
1022  case FOREACH: {
1023  if (Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
1024  CurRec, CurMultiClass))
1025  return Result;
1026  break;
1027  }
1028 
1029  case IF: {
1030  IntInit *LHSi = dyn_cast<IntInit>(LHS);
1031  if (Init *I = LHS->convertInitializerTo(IntRecTy::get()))
1032  LHSi = dyn_cast<IntInit>(I);
1033  if (LHSi) {
1034  if (LHSi->getValue())
1035  return MHS;
1036  return RHS;
1037  }
1038  break;
1039  }
1040  }
1041 
1042  return const_cast<TernOpInit *>(this);
1043 }
1044 
1046  const RecordVal *RV) const {
1047  Init *lhs = LHS->resolveReferences(R, RV);
1048 
1049  if (Opc == IF && lhs != LHS) {
1050  IntInit *Value = dyn_cast<IntInit>(lhs);
1051  if (Init *I = lhs->convertInitializerTo(IntRecTy::get()))
1052  Value = dyn_cast<IntInit>(I);
1053  if (Value) {
1054  // Short-circuit
1055  if (Value->getValue()) {
1056  Init *mhs = MHS->resolveReferences(R, RV);
1057  return (TernOpInit::get(getOpcode(), lhs, mhs,
1058  RHS, getType()))->Fold(&R, nullptr);
1059  }
1060  Init *rhs = RHS->resolveReferences(R, RV);
1061  return (TernOpInit::get(getOpcode(), lhs, MHS,
1062  rhs, getType()))->Fold(&R, nullptr);
1063  }
1064  }
1065 
1066  Init *mhs = MHS->resolveReferences(R, RV);
1067  Init *rhs = RHS->resolveReferences(R, RV);
1068 
1069  if (LHS != lhs || MHS != mhs || RHS != rhs)
1070  return (TernOpInit::get(getOpcode(), lhs, mhs, rhs,
1071  getType()))->Fold(&R, nullptr);
1072  return Fold(&R, nullptr);
1073 }
1074 
1075 std::string TernOpInit::getAsString() const {
1076  std::string Result;
1077  switch (Opc) {
1078  case SUBST: Result = "!subst"; break;
1079  case FOREACH: Result = "!foreach"; break;
1080  case IF: Result = "!if"; break;
1081  }
1082  return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", " +
1083  RHS->getAsString() + ")";
1084 }
1085 
1086 RecTy *TypedInit::getFieldType(const std::string &FieldName) const {
1087  if (RecordRecTy *RecordType = dyn_cast<RecordRecTy>(getType()))
1088  if (RecordVal *Field = RecordType->getRecord()->getValue(FieldName))
1089  return Field->getType();
1090  return nullptr;
1091 }
1092 
1093 Init *
1095  if (isa<IntRecTy>(Ty)) {
1096  if (getType()->typeIsConvertibleTo(Ty))
1097  return const_cast<TypedInit *>(this);
1098  return nullptr;
1099  }
1100 
1101  if (isa<StringRecTy>(Ty)) {
1102  if (isa<StringRecTy>(getType()))
1103  return const_cast<TypedInit *>(this);
1104  return nullptr;
1105  }
1106 
1107  if (isa<BitRecTy>(Ty)) {
1108  // Accept variable if it is already of bit type!
1109  if (isa<BitRecTy>(getType()))
1110  return const_cast<TypedInit *>(this);
1111  if (auto *BitsTy = dyn_cast<BitsRecTy>(getType())) {
1112  // Accept only bits<1> expression.
1113  if (BitsTy->getNumBits() == 1)
1114  return const_cast<TypedInit *>(this);
1115  return nullptr;
1116  }
1117  // Ternary !if can be converted to bit, but only if both sides are
1118  // convertible to a bit.
1119  if (const auto *TOI = dyn_cast<TernOpInit>(this)) {
1120  if (TOI->getOpcode() == TernOpInit::TernaryOp::IF &&
1121  TOI->getMHS()->convertInitializerTo(BitRecTy::get()) &&
1122  TOI->getRHS()->convertInitializerTo(BitRecTy::get()))
1123  return const_cast<TypedInit *>(this);
1124  return nullptr;
1125  }
1126  return nullptr;
1127  }
1128 
1129  if (auto *BRT = dyn_cast<BitsRecTy>(Ty)) {
1130  if (BRT->getNumBits() == 1 && isa<BitRecTy>(getType()))
1131  return BitsInit::get(const_cast<TypedInit *>(this));
1132 
1133  if (getType()->typeIsConvertibleTo(BRT)) {
1134  SmallVector<Init *, 16> NewBits(BRT->getNumBits());
1135 
1136  for (unsigned i = 0; i != BRT->getNumBits(); ++i)
1137  NewBits[i] = VarBitInit::get(const_cast<TypedInit *>(this), i);
1138  return BitsInit::get(NewBits);
1139  }
1140 
1141  return nullptr;
1142  }
1143 
1144  if (auto *DLRT = dyn_cast<ListRecTy>(Ty)) {
1145  if (auto *SLRT = dyn_cast<ListRecTy>(getType()))
1146  if (SLRT->getElementType()->typeIsConvertibleTo(DLRT->getElementType()))
1147  return const_cast<TypedInit *>(this);
1148  return nullptr;
1149  }
1150 
1151  if (auto *DRT = dyn_cast<DagRecTy>(Ty)) {
1152  if (getType()->typeIsConvertibleTo(DRT))
1153  return const_cast<TypedInit *>(this);
1154  return nullptr;
1155  }
1156 
1157  if (auto *SRRT = dyn_cast<RecordRecTy>(Ty)) {
1158  // Ensure that this is compatible with Rec.
1159  if (RecordRecTy *DRRT = dyn_cast<RecordRecTy>(getType()))
1160  if (DRRT->getRecord()->isSubClassOf(SRRT->getRecord()) ||
1161  DRRT->getRecord() == SRRT->getRecord())
1162  return const_cast<TypedInit *>(this);
1163  return nullptr;
1164  }
1165 
1166  return nullptr;
1167 }
1168 
1169 Init *
1170 TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const {
1172  if (!T) return nullptr; // Cannot subscript a non-bits variable.
1173  unsigned NumBits = T->getNumBits();
1174 
1175  SmallVector<Init *, 16> NewBits(Bits.size());
1176  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
1177  if (Bits[i] >= NumBits)
1178  return nullptr;
1179 
1180  NewBits[i] = VarBitInit::get(const_cast<TypedInit *>(this), Bits[i]);
1181  }
1182  return BitsInit::get(NewBits);
1183 }
1184 
1185 Init *
1186 TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) const {
1188  if (!T) return nullptr; // Cannot subscript a non-list variable.
1189 
1190  if (Elements.size() == 1)
1191  return VarListElementInit::get(const_cast<TypedInit *>(this), Elements[0]);
1192 
1193  std::vector<Init*> ListInits;
1194  ListInits.reserve(Elements.size());
1195  for (unsigned i = 0, e = Elements.size(); i != e; ++i)
1196  ListInits.push_back(VarListElementInit::get(const_cast<TypedInit *>(this),
1197  Elements[i]));
1198  return ListInit::get(ListInits, T);
1199 }
1200 
1201 
1202 VarInit *VarInit::get(const std::string &VN, RecTy *T) {
1203  Init *Value = StringInit::get(VN);
1204  return VarInit::get(Value, T);
1205 }
1206 
1208  typedef std::pair<RecTy *, Init *> Key;
1210 
1211  Key TheKey(std::make_pair(T, VN));
1212 
1213  std::unique_ptr<VarInit> &I = ThePool[TheKey];
1214  if (!I) I.reset(new VarInit(VN, T));
1215  return I.get();
1216 }
1217 
1218 const std::string &VarInit::getName() const {
1219  StringInit *NameString = cast<StringInit>(getNameInit());
1220  return NameString->getValue();
1221 }
1222 
1223 Init *VarInit::getBit(unsigned Bit) const {
1224  if (getType() == BitRecTy::get())
1225  return const_cast<VarInit*>(this);
1226  return VarBitInit::get(const_cast<VarInit*>(this), Bit);
1227 }
1228 
1230  const RecordVal *IRV,
1231  unsigned Elt) const {
1232  if (R.isTemplateArg(getNameInit())) return nullptr;
1233  if (IRV && IRV->getNameInit() != getNameInit()) return nullptr;
1234 
1235  RecordVal *RV = R.getValue(getNameInit());
1236  assert(RV && "Reference to a non-existent variable?");
1237  ListInit *LI = dyn_cast<ListInit>(RV->getValue());
1238  if (!LI)
1239  return VarListElementInit::get(cast<TypedInit>(RV->getValue()), Elt);
1240 
1241  if (Elt >= LI->size())
1242  return nullptr; // Out of range reference.
1243  Init *E = LI->getElement(Elt);
1244  // If the element is set to some value, or if we are resolving a reference
1245  // to a specific variable and that variable is explicitly unset, then
1246  // replace the VarListElementInit with it.
1247  if (IRV || !isa<UnsetInit>(E))
1248  return E;
1249  return nullptr;
1250 }
1251 
1252 
1253 RecTy *VarInit::getFieldType(const std::string &FieldName) const {
1254  if (RecordRecTy *RTy = dyn_cast<RecordRecTy>(getType()))
1255  if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
1256  return RV->getType();
1257  return nullptr;
1258 }
1259 
1261  const std::string &FieldName) const {
1262  if (isa<RecordRecTy>(getType()))
1263  if (const RecordVal *Val = R.getValue(VarName)) {
1264  if (RV != Val && (RV || isa<UnsetInit>(Val->getValue())))
1265  return nullptr;
1266  Init *TheInit = Val->getValue();
1267  assert(TheInit != this && "Infinite loop detected!");
1268  if (Init *I = TheInit->getFieldInit(R, RV, FieldName))
1269  return I;
1270  return nullptr;
1271  }
1272  return nullptr;
1273 }
1274 
1275 /// resolveReferences - This method is used by classes that refer to other
1276 /// variables which may not be defined at the time the expression is formed.
1277 /// If a value is set for the variable later, this method will be called on
1278 /// users of the value to allow the value to propagate out.
1279 ///
1281  if (RecordVal *Val = R.getValue(VarName))
1282  if (RV == Val || (!RV && !isa<UnsetInit>(Val->getValue())))
1283  return Val->getValue();
1284  return const_cast<VarInit *>(this);
1285 }
1286 
1288  typedef std::pair<TypedInit *, unsigned> Key;
1290 
1291  Key TheKey(std::make_pair(T, B));
1292 
1293  std::unique_ptr<VarBitInit> &I = ThePool[TheKey];
1294  if (!I) I.reset(new VarBitInit(T, B));
1295  return I.get();
1296 }
1297 
1299  if (isa<BitRecTy>(Ty))
1300  return const_cast<VarBitInit *>(this);
1301 
1302  return nullptr;
1303 }
1304 
1305 std::string VarBitInit::getAsString() const {
1306  return TI->getAsString() + "{" + utostr(Bit) + "}";
1307 }
1308 
1310  Init *I = TI->resolveReferences(R, RV);
1311  if (TI != I)
1312  return I->getBit(getBitNum());
1313 
1314  return const_cast<VarBitInit*>(this);
1315 }
1316 
1318  unsigned E) {
1319  typedef std::pair<TypedInit *, unsigned> Key;
1321 
1322  Key TheKey(std::make_pair(T, E));
1323 
1324  std::unique_ptr<VarListElementInit> &I = ThePool[TheKey];
1325  if (!I) I.reset(new VarListElementInit(T, E));
1326  return I.get();
1327 }
1328 
1329 std::string VarListElementInit::getAsString() const {
1330  return TI->getAsString() + "[" + utostr(Element) + "]";
1331 }
1332 
1333 Init *
1336  getElementNum()))
1337  return I;
1338  return const_cast<VarListElementInit *>(this);
1339 }
1340 
1342  if (getType() == BitRecTy::get())
1343  return const_cast<VarListElementInit*>(this);
1344  return VarBitInit::get(const_cast<VarListElementInit*>(this), Bit);
1345 }
1346 
1348  const RecordVal *RV,
1349  unsigned Elt) const {
1350  if (Init *Result = TI->resolveListElementReference(R, RV, Element)) {
1351  if (TypedInit *TInit = dyn_cast<TypedInit>(Result)) {
1352  if (Init *Result2 = TInit->resolveListElementReference(R, RV, Elt))
1353  return Result2;
1354  return VarListElementInit::get(TInit, Elt);
1355  }
1356  return Result;
1357  }
1358 
1359  return nullptr;
1360 }
1361 
1363  return R->getDefInit();
1364 }
1365 
1367  if (auto *RRT = dyn_cast<RecordRecTy>(Ty))
1368  if (getDef()->isSubClassOf(RRT->getRecord()))
1369  return const_cast<DefInit *>(this);
1370  return nullptr;
1371 }
1372 
1373 RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1374  if (const RecordVal *RV = Def->getValue(FieldName))
1375  return RV->getType();
1376  return nullptr;
1377 }
1378 
1380  const std::string &FieldName) const {
1381  return Def->getValue(FieldName)->getValue();
1382 }
1383 
1384 
1385 std::string DefInit::getAsString() const {
1386  return Def->getName();
1387 }
1388 
1389 FieldInit *FieldInit::get(Init *R, const std::string &FN) {
1390  typedef std::pair<Init *, TableGenStringKey> Key;
1392 
1393  Key TheKey(std::make_pair(R, FN));
1394 
1395  std::unique_ptr<FieldInit> &I = ThePool[TheKey];
1396  if (!I) I.reset(new FieldInit(R, FN));
1397  return I.get();
1398 }
1399 
1400 Init *FieldInit::getBit(unsigned Bit) const {
1401  if (getType() == BitRecTy::get())
1402  return const_cast<FieldInit*>(this);
1403  return VarBitInit::get(const_cast<FieldInit*>(this), Bit);
1404 }
1405 
1407  unsigned Elt) const {
1408  if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName))
1409  if (ListInit *LI = dyn_cast<ListInit>(ListVal)) {
1410  if (Elt >= LI->size()) return nullptr;
1411  Init *E = LI->getElement(Elt);
1412 
1413  // If the element is set to some value, or if we are resolving a
1414  // reference to a specific variable and that variable is explicitly
1415  // unset, then replace the VarListElementInit with it.
1416  if (RV || !isa<UnsetInit>(E))
1417  return E;
1418  }
1419  return nullptr;
1420 }
1421 
1423  Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1424 
1425  if (Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName)) {
1426  Init *BVR = BitsVal->resolveReferences(R, RV);
1427  return BVR->isComplete() ? BVR : const_cast<FieldInit *>(this);
1428  }
1429 
1430  if (NewRec != Rec)
1431  return FieldInit::get(NewRec, FieldName);
1432  return const_cast<FieldInit *>(this);
1433 }
1434 
1435 static void ProfileDagInit(FoldingSetNodeID &ID, Init *V, const std::string &VN,
1436  ArrayRef<Init *> ArgRange,
1437  ArrayRef<std::string> NameRange) {
1438  ID.AddPointer(V);
1439  ID.AddString(VN);
1440 
1441  ArrayRef<Init *>::iterator Arg = ArgRange.begin();
1443  while (Arg != ArgRange.end()) {
1444  assert(Name != NameRange.end() && "Arg name underflow!");
1445  ID.AddPointer(*Arg++);
1446  ID.AddString(*Name++);
1447  }
1448  assert(Name == NameRange.end() && "Arg name overflow!");
1449 }
1450 
1451 DagInit *
1452 DagInit::get(Init *V, const std::string &VN,
1453  ArrayRef<Init *> ArgRange,
1454  ArrayRef<std::string> NameRange) {
1455  static FoldingSet<DagInit> ThePool;
1456  static std::vector<std::unique_ptr<DagInit>> TheActualPool;
1457 
1459  ProfileDagInit(ID, V, VN, ArgRange, NameRange);
1460 
1461  void *IP = nullptr;
1462  if (DagInit *I = ThePool.FindNodeOrInsertPos(ID, IP))
1463  return I;
1464 
1465  DagInit *I = new DagInit(V, VN, ArgRange, NameRange);
1466  ThePool.InsertNode(I, IP);
1467  TheActualPool.push_back(std::unique_ptr<DagInit>(I));
1468  return I;
1469 }
1470 
1471 DagInit *
1472 DagInit::get(Init *V, const std::string &VN,
1473  const std::vector<std::pair<Init*, std::string> > &args) {
1474  std::vector<Init *> Args;
1475  std::vector<std::string> Names;
1476 
1477  for (const auto &Arg : args) {
1478  Args.push_back(Arg.first);
1479  Names.push_back(Arg.second);
1480  }
1481 
1482  return DagInit::get(V, VN, Args, Names);
1483 }
1484 
1486  ProfileDagInit(ID, Val, ValName, Args, ArgNames);
1487 }
1488 
1490  if (isa<DagRecTy>(Ty))
1491  return const_cast<DagInit *>(this);
1492 
1493  return nullptr;
1494 }
1495 
1497  std::vector<Init*> NewArgs;
1498  for (unsigned i = 0, e = Args.size(); i != e; ++i)
1499  NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1500 
1501  Init *Op = Val->resolveReferences(R, RV);
1502 
1503  if (Args != NewArgs || Op != Val)
1504  return DagInit::get(Op, ValName, NewArgs, ArgNames);
1505 
1506  return const_cast<DagInit *>(this);
1507 }
1508 
1509 
1510 std::string DagInit::getAsString() const {
1511  std::string Result = "(" + Val->getAsString();
1512  if (!ValName.empty())
1513  Result += ":" + ValName;
1514  if (!Args.empty()) {
1515  Result += " " + Args[0]->getAsString();
1516  if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1517  for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1518  Result += ", " + Args[i]->getAsString();
1519  if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1520  }
1521  }
1522  return Result + ")";
1523 }
1524 
1525 
1526 //===----------------------------------------------------------------------===//
1527 // Other implementations
1528 //===----------------------------------------------------------------------===//
1529 
1531  : NameAndPrefix(N, P), Ty(T) {
1533  assert(Value && "Cannot create unset value for current type!");
1534 }
1535 
1536 RecordVal::RecordVal(const std::string &N, RecTy *T, bool P)
1537  : NameAndPrefix(StringInit::get(N), P), Ty(T) {
1539  assert(Value && "Cannot create unset value for current type!");
1540 }
1541 
1542 const std::string &RecordVal::getName() const {
1543  return cast<StringInit>(getNameInit())->getValue();
1544 }
1545 
1546 void RecordVal::dump() const { errs() << *this; }
1547 
1548 void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
1549  if (getPrefix()) OS << "field ";
1550  OS << *getType() << " " << getNameInitAsString();
1551 
1552  if (getValue())
1553  OS << " = " << *getValue();
1554 
1555  if (PrintSem) OS << ";\n";
1556 }
1557 
1558 unsigned Record::LastID = 0;
1559 
1560 void Record::init() {
1561  checkName();
1562 
1563  // Every record potentially has a def at the top. This value is
1564  // replaced with the top-level def name at instantiation time.
1565  RecordVal DN("NAME", StringRecTy::get(), 0);
1566  addValue(DN);
1567 }
1568 
1569 void Record::checkName() {
1570  // Ensure the record name has string type.
1571  const TypedInit *TypedName = cast<const TypedInit>(Name);
1572  if (!isa<StringRecTy>(TypedName->getType()))
1573  PrintFatalError(getLoc(), "Record name is not a string!");
1574 }
1575 
1577  if (!TheInit)
1578  TheInit.reset(new DefInit(this, new RecordRecTy(this)));
1579  return TheInit.get();
1580 }
1581 
1582 const std::string &Record::getName() const {
1583  return cast<StringInit>(Name)->getValue();
1584 }
1585 
1586 void Record::setName(Init *NewName) {
1587  Name = NewName;
1588  checkName();
1589  // DO NOT resolve record values to the name at this point because
1590  // there might be default values for arguments of this def. Those
1591  // arguments might not have been resolved yet so we don't want to
1592  // prematurely assume values for those arguments were not passed to
1593  // this def.
1594  //
1595  // Nonetheless, it may be that some of this Record's values
1596  // reference the record name. Indeed, the reason for having the
1597  // record name be an Init is to provide this flexibility. The extra
1598  // resolve steps after completely instantiating defs takes care of
1599  // this. See TGParser::ParseDef and TGParser::ParseDefm.
1600 }
1601 
1602 void Record::setName(const std::string &Name) {
1603  setName(StringInit::get(Name));
1604 }
1605 
1606 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1607 /// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1608 /// references.
1610  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1611  if (RV == &Values[i]) // Skip resolve the same field as the given one
1612  continue;
1613  if (Init *V = Values[i].getValue())
1614  if (Values[i].setValue(V->resolveReferences(*this, RV)))
1615  PrintFatalError(getLoc(), "Invalid value is found when setting '" +
1616  Values[i].getNameInitAsString() +
1617  "' after resolving references" +
1618  (RV ? " against '" + RV->getNameInitAsString() +
1619  "' of (" + RV->getValue()->getAsUnquotedString() +
1620  ")"
1621  : "") + "\n");
1622  }
1623  Init *OldName = getNameInit();
1624  Init *NewName = Name->resolveReferences(*this, RV);
1625  if (NewName != OldName) {
1626  // Re-register with RecordKeeper.
1627  setName(NewName);
1628  }
1629 }
1630 
1631 void Record::dump() const { errs() << *this; }
1632 
1634  OS << R.getNameInitAsString();
1635 
1636  const std::vector<Init *> &TArgs = R.getTemplateArgs();
1637  if (!TArgs.empty()) {
1638  OS << "<";
1639  bool NeedComma = false;
1640  for (const Init *TA : TArgs) {
1641  if (NeedComma) OS << ", ";
1642  NeedComma = true;
1643  const RecordVal *RV = R.getValue(TA);
1644  assert(RV && "Template argument record not found??");
1645  RV->print(OS, false);
1646  }
1647  OS << ">";
1648  }
1649 
1650  OS << " {";
1652  if (!SC.empty()) {
1653  OS << "\t//";
1654  for (const Record *Super : SC)
1655  OS << " " << Super->getNameInitAsString();
1656  }
1657  OS << "\n";
1658 
1659  for (const RecordVal &Val : R.getValues())
1660  if (Val.getPrefix() && !R.isTemplateArg(Val.getName()))
1661  OS << Val;
1662  for (const RecordVal &Val : R.getValues())
1663  if (!Val.getPrefix() && !R.isTemplateArg(Val.getName()))
1664  OS << Val;
1665 
1666  return OS << "}\n";
1667 }
1668 
1669 /// getValueInit - Return the initializer for a value with the specified name,
1670 /// or abort if the field does not exist.
1671 ///
1673  const RecordVal *R = getValue(FieldName);
1674  if (!R || !R->getValue())
1675  PrintFatalError(getLoc(), "Record `" + getName() +
1676  "' does not have a field named `" + FieldName + "'!\n");
1677  return R->getValue();
1678 }
1679 
1680 
1681 /// getValueAsString - This method looks up the specified field and returns its
1682 /// value as a string, aborts if the field does not exist or if
1683 /// the value is not a string.
1684 ///
1685 std::string Record::getValueAsString(StringRef FieldName) const {
1686  const RecordVal *R = getValue(FieldName);
1687  if (!R || !R->getValue())
1688  PrintFatalError(getLoc(), "Record `" + getName() +
1689  "' does not have a field named `" + FieldName + "'!\n");
1690 
1691  if (StringInit *SI = dyn_cast<StringInit>(R->getValue()))
1692  return SI->getValue();
1693  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1694  FieldName + "' does not have a string initializer!");
1695 }
1696 
1697 /// getValueAsBitsInit - This method looks up the specified field and returns
1698 /// its value as a BitsInit, aborts if the field does not exist or if
1699 /// the value is not the right type.
1700 ///
1702  const RecordVal *R = getValue(FieldName);
1703  if (!R || !R->getValue())
1704  PrintFatalError(getLoc(), "Record `" + getName() +
1705  "' does not have a field named `" + FieldName + "'!\n");
1706 
1707  if (BitsInit *BI = dyn_cast<BitsInit>(R->getValue()))
1708  return BI;
1709  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1710  FieldName + "' does not have a BitsInit initializer!");
1711 }
1712 
1713 /// getValueAsListInit - This method looks up the specified field and returns
1714 /// its value as a ListInit, aborting if the field does not exist or if
1715 /// the value is not the right type.
1716 ///
1718  const RecordVal *R = getValue(FieldName);
1719  if (!R || !R->getValue())
1720  PrintFatalError(getLoc(), "Record `" + getName() +
1721  "' does not have a field named `" + FieldName + "'!\n");
1722 
1723  if (ListInit *LI = dyn_cast<ListInit>(R->getValue()))
1724  return LI;
1725  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1726  FieldName + "' does not have a list initializer!");
1727 }
1728 
1729 /// getValueAsListOfDefs - This method looks up the specified field and returns
1730 /// its value as a vector of records, aborting if the field does not exist
1731 /// or if the value is not the right type.
1732 ///
1733 std::vector<Record*>
1735  ListInit *List = getValueAsListInit(FieldName);
1736  std::vector<Record*> Defs;
1737  for (Init *I : List->getValues()) {
1738  if (DefInit *DI = dyn_cast<DefInit>(I))
1739  Defs.push_back(DI->getDef());
1740  else
1741  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1742  FieldName + "' list is not entirely DefInit!");
1743  }
1744  return Defs;
1745 }
1746 
1747 /// getValueAsInt - This method looks up the specified field and returns its
1748 /// value as an int64_t, aborting if the field does not exist or if the value
1749 /// is not the right type.
1750 ///
1751 int64_t Record::getValueAsInt(StringRef FieldName) const {
1752  const RecordVal *R = getValue(FieldName);
1753  if (!R || !R->getValue())
1754  PrintFatalError(getLoc(), "Record `" + getName() +
1755  "' does not have a field named `" + FieldName + "'!\n");
1756 
1757  if (IntInit *II = dyn_cast<IntInit>(R->getValue()))
1758  return II->getValue();
1759  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1760  FieldName + "' does not have an int initializer!");
1761 }
1762 
1763 /// getValueAsListOfInts - This method looks up the specified field and returns
1764 /// its value as a vector of integers, aborting if the field does not exist or
1765 /// if the value is not the right type.
1766 ///
1767 std::vector<int64_t>
1769  ListInit *List = getValueAsListInit(FieldName);
1770  std::vector<int64_t> Ints;
1771  for (Init *I : List->getValues()) {
1772  if (IntInit *II = dyn_cast<IntInit>(I))
1773  Ints.push_back(II->getValue());
1774  else
1775  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1776  FieldName + "' does not have a list of ints initializer!");
1777  }
1778  return Ints;
1779 }
1780 
1781 /// getValueAsListOfStrings - This method looks up the specified field and
1782 /// returns its value as a vector of strings, aborting if the field does not
1783 /// exist or if the value is not the right type.
1784 ///
1785 std::vector<std::string>
1787  ListInit *List = getValueAsListInit(FieldName);
1788  std::vector<std::string> Strings;
1789  for (Init *I : List->getValues()) {
1790  if (StringInit *SI = dyn_cast<StringInit>(I))
1791  Strings.push_back(SI->getValue());
1792  else
1793  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1794  FieldName + "' does not have a list of strings initializer!");
1795  }
1796  return Strings;
1797 }
1798 
1799 /// getValueAsDef - This method looks up the specified field and returns its
1800 /// value as a Record, aborting if the field does not exist or if the value
1801 /// is not the right type.
1802 ///
1804  const RecordVal *R = getValue(FieldName);
1805  if (!R || !R->getValue())
1806  PrintFatalError(getLoc(), "Record `" + getName() +
1807  "' does not have a field named `" + FieldName + "'!\n");
1808 
1809  if (DefInit *DI = dyn_cast<DefInit>(R->getValue()))
1810  return DI->getDef();
1811  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1812  FieldName + "' does not have a def initializer!");
1813 }
1814 
1815 /// getValueAsBit - This method looks up the specified field and returns its
1816 /// value as a bit, aborting if the field does not exist or if the value is
1817 /// not the right type.
1818 ///
1819 bool Record::getValueAsBit(StringRef FieldName) const {
1820  const RecordVal *R = getValue(FieldName);
1821  if (!R || !R->getValue())
1822  PrintFatalError(getLoc(), "Record `" + getName() +
1823  "' does not have a field named `" + FieldName + "'!\n");
1824 
1825  if (BitInit *BI = dyn_cast<BitInit>(R->getValue()))
1826  return BI->getValue();
1827  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1828  FieldName + "' does not have a bit initializer!");
1829 }
1830 
1831 bool Record::getValueAsBitOrUnset(StringRef FieldName, bool &Unset) const {
1832  const RecordVal *R = getValue(FieldName);
1833  if (!R || !R->getValue())
1834  PrintFatalError(getLoc(), "Record `" + getName() +
1835  "' does not have a field named `" + FieldName.str() + "'!\n");
1836 
1837  if (isa<UnsetInit>(R->getValue())) {
1838  Unset = true;
1839  return false;
1840  }
1841  Unset = false;
1842  if (BitInit *BI = dyn_cast<BitInit>(R->getValue()))
1843  return BI->getValue();
1844  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1845  FieldName + "' does not have a bit initializer!");
1846 }
1847 
1848 /// getValueAsDag - This method looks up the specified field and returns its
1849 /// value as an Dag, aborting if the field does not exist or if the value is
1850 /// not the right type.
1851 ///
1853  const RecordVal *R = getValue(FieldName);
1854  if (!R || !R->getValue())
1855  PrintFatalError(getLoc(), "Record `" + getName() +
1856  "' does not have a field named `" + FieldName + "'!\n");
1857 
1858  if (DagInit *DI = dyn_cast<DagInit>(R->getValue()))
1859  return DI;
1860  PrintFatalError(getLoc(), "Record `" + getName() + "', field `" +
1861  FieldName + "' does not have a dag initializer!");
1862 }
1863 
1864 
1865 void MultiClass::dump() const {
1866  errs() << "Record:\n";
1867  Rec.dump();
1868 
1869  errs() << "Defs:\n";
1870  for (const auto &Proto : DefPrototypes)
1871  Proto->dump();
1872 }
1873 
1874 
1875 void RecordKeeper::dump() const { errs() << *this; }
1876 
1878  OS << "------------- Classes -----------------\n";
1879  for (const auto &C : RK.getClasses())
1880  OS << "class " << *C.second;
1881 
1882  OS << "------------- Defs -----------------\n";
1883  for (const auto &D : RK.getDefs())
1884  OS << "def " << *D.second;
1885  return OS;
1886 }
1887 
1888 
1889 /// getAllDerivedDefinitions - This method returns all concrete definitions
1890 /// that derive from the specified class name. If a class with the specified
1891 /// name does not exist, an error is printed and true is returned.
1892 std::vector<Record*>
1893 RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1894  Record *Class = getClass(ClassName);
1895  if (!Class)
1896  PrintFatalError("ERROR: Couldn't find the `" + ClassName + "' class!\n");
1897 
1898  std::vector<Record*> Defs;
1899  for (const auto &D : getDefs())
1900  if (D.second->isSubClassOf(Class))
1901  Defs.push_back(D.second.get());
1902 
1903  return Defs;
1904 }
1905 
1906 /// QualifyName - Return an Init with a qualifier prefix referring
1907 /// to CurRec's name.
1908 Init *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass,
1909  Init *Name, const std::string &Scoper) {
1910  RecTy *Type = cast<TypedInit>(Name)->getType();
1911 
1912  BinOpInit *NewName =
1915  CurRec.getNameInit(),
1916  StringInit::get(Scoper),
1917  Type)->Fold(&CurRec, CurMultiClass),
1918  Name,
1919  Type);
1920 
1921  if (CurMultiClass && Scoper != "::") {
1922  NewName =
1925  CurMultiClass->Rec.getNameInit(),
1926  StringInit::get("::"),
1927  Type)->Fold(&CurRec, CurMultiClass),
1928  NewName->Fold(&CurRec, CurMultiClass),
1929  Type);
1930  }
1931 
1932  return NewName->Fold(&CurRec, CurMultiClass);
1933 }
1934 
1935 /// QualifyName - Return an Init with a qualifier prefix referring
1936 /// to CurRec's name.
1937 Init *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass,
1938  const std::string &Name,
1939  const std::string &Scoper) {
1940  return QualifyName(CurRec, CurMultiClass, StringInit::get(Name), Scoper);
1941 }
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1280
static BinOpInit * get(BinaryOp opc, Init *lhs, Init *rhs, RecTy *Type)
Definition: Record.cpp:726
void AddPointer(const void *Ptr)
Add* - Add various data types to Bit data.
Definition: FoldingSet.cpp:52
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:287
void print(raw_ostream &OS) const
Definition: Record.h:64
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:539
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1422
RecTyKind
Subclass discriminator (for dyn_cast<> et al.)
Definition: Record.h:43
raw_ostream & errs()
This returns a reference to a raw_ostream for standard error.
virtual bool isComplete() const
isComplete - This virtual method should be overridden by values that may not be completely specified ...
Definition: Record.h:274
RecTy * getFieldType(const std::string &FieldName) const override
getFieldType - This method is used to implement the FieldInit class.
Definition: Record.cpp:1086
const std::string & getValue() const
Definition: Record.h:562
void Profile(FoldingSetNodeID &ID) const
Definition: Record.cpp:283
unsigned getNumBits() const
Definition: Record.h:473
unsigned getNumArgs() const
Definition: Record.h:1067
bool getValueAsBit(StringRef FieldName) const
getValueAsBit - This method looks up the specified field and returns its value as a bit...
Definition: Record.cpp:1819
const std::string & getArgName(unsigned Num) const
Definition: Record.h:1072
FieldInit - X.Y - Represent a reference to a subfield of a variable.
Definition: Record.h:998
friend hash_code hash_value(const TableGenStringKey &Value)
Definition: Record.cpp:50
bool getPrefix() const
Definition: Record.h:1125
Init * getFieldInit(Record &R, const RecordVal *RV, const std::string &FieldName) const override
getFieldInit - This method complements getFieldType to return the initializer for the specified field...
Definition: Record.cpp:1379
ListInit - [AL, AH, CL] - Represent a list of defs.
Definition: Record.h:584
IntInit - 7 - Represent an initialization by a literal integer value.
Definition: Record.h:509
ListRecTy - 'list<Ty>' - Represent a list of values, all of which must be of the specified type...
Definition: Record.h:155
BinOpInit - !op (X, Y) - Combine two inits.
Definition: Record.h:725
Init * getBit(unsigned Bit) const override
getBit - This method is used to return the initializer for the specified bit.
Definition: Record.cpp:1341
Record * getElementAsRecord(unsigned i) const
Definition: Record.cpp:531
virtual bool typeIsConvertibleTo(const RecTy *RHS) const
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:97
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:707
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:242
DefInit - AL - Represent a reference to a 'def' in the description.
Definition: Record.h:956
std::string getNameInitAsString() const
Definition: Record.h:1121
iterator end() const
Definition: ArrayRef.h:123
static UnOpInit * get(UnaryOp opc, Init *lhs, RecTy *Type)
Definition: Record.cpp:606
Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const override
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
Definition: Record.cpp:560
Init * getValueInit(StringRef FieldName) const
getValueInit - Return the initializer for a value with the specified name, or throw an exception if t...
Definition: Record.cpp:1672
const std::string & str() const
Definition: Record.cpp:48
Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const override
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
Definition: Record.cpp:582
RecTy * getFieldType(const std::string &FieldName) const override
getFieldType - This method is used to implement the FieldInit class.
Definition: Record.cpp:1253
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1045
RecTy * getType() const
Definition: Record.h:380
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:1305
Init * Fold(Record *CurRec, MultiClass *CurMultiClass) const override
Definition: Record.cpp:977
virtual Init * getFieldInit(Record &R, const RecordVal *RV, const std::string &FieldName) const
getFieldInit - This method complements getFieldType to return the initializer for the specified field...
Definition: Record.h:327
std::string str() const
str - Get the contents as an std::string.
Definition: StringRef.h:188
void Profile(FoldingSetNodeID &ID) const
Definition: Record.cpp:495
BinaryOp getOpcode() const
Definition: Record.h:762
Record * getValueAsDef(StringRef FieldName) const
getValueAsDef - This method looks up the specified field and returns its value as a Record...
Definition: Record.cpp:1803
Init * getElement(unsigned i) const
Definition: Record.h:606
void InsertNode(Node *N, void *InsertPos)
InsertNode - Insert the specified node into the folding set, knowing that it is not already in the fo...
Definition: FoldingSet.cpp:310
FunctionType * getType(LLVMContext &Context, ID id, ArrayRef< Type * > Tys=None)
Return the function type for an intrinsic.
Definition: Function.cpp:822
Init * convertInitListSlice(const std::vector< unsigned > &Elements) const override
convertInitListSlice - This method is used to implement the list slice selection operator.
Definition: Record.cpp:521
static TableGenStringKey getEmptyKey()
Definition: Record.cpp:60
std::string getValueAsString(StringRef FieldName) const
getValueAsString - This method looks up the specified field and returns its value as a string...
Definition: Record.cpp:1685
Init * getOperator() const
Definition: Record.h:1063
BitsInit - { a, b, c } - Represents an initializer for a BitsRecTy value.
Definition: Record.h:455
std::string getAsString() const override
Definition: Record.cpp:140
virtual std::string getAsUnquotedString() const
getAsUnquotedString - Convert this value to a string form, without adding quote markers.
Definition: Record.h:285
static BitRecTy * get()
Definition: Record.h:91
ArrayRef< Init * > getTemplateArgs() const
Definition: Record.h:1225
void print(raw_ostream &OS) const
print - Print out this value.
Definition: Record.h:277
const std::string & getName() const
Definition: Record.cpp:1582
static IntInit * get(int64_t V)
Definition: Record.cpp:394
UnsetInit - ? - Represents an uninitialized value.
Definition: Record.h:404
BitInit - true/false - Represent a concrete initializer for a bit.
Definition: Record.h:427
Init * getValue() const
Definition: Record.h:1127
static BitsRecTy * get(unsigned Sz)
Definition: Record.cpp:110
virtual Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const =0
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
TypedInit - This is the common super-class of types that have a specific, explicit, type.
Definition: Record.h:361
static void ProfileBitsInit(FoldingSetNodeID &ID, ArrayRef< Init * > Range)
Definition: Record.cpp:259
bool typeIsConvertibleTo(const RecTy *RHS) const override
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:124
Init * getBit(unsigned Bit) const override
getBit - This method is used to return the initializer for the specified bit.
Definition: Record.cpp:600
#define llvm_unreachable(msg)
Marks that the current location is not supposed to be reachable.
Definition: ErrorHandling.h:98
static StringRecTy * get()
Definition: Record.h:147
std::string getAsString() const override
Definition: Record.cpp:158
std::string getAsString() const override
Definition: Record.cpp:136
VarListElementInit - List[4] - Represent access to one element of a var or field. ...
Definition: Record.h:918
RecordRecTy - '[classname]' - Represent an instance of a class, such as: (R32 X = EAX)...
Definition: Record.h:192
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:461
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:402
void AddInteger(signed I)
Definition: FoldingSet.cpp:60
Record * getClass(const std::string &Name) const
Definition: Record.h:1441
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1309
static Init * ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, Record *CurRec, MultiClass *CurMultiClass)
Definition: Record.cpp:914
int64_t getValue() const
Definition: Record.h:524
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:715
virtual unsigned getNumOperands() const =0
void print(raw_ostream &OS, bool PrintSem=true) const
Definition: Record.cpp:1548
BitsInit * getValueAsBitsInit(StringRef FieldName) const
getValueAsBitsInit - This method looks up the specified field and returns its value as a BitsInit...
Definition: Record.cpp:1701
const_iterator begin() const
Definition: Record.h:629
RecTy * getType() const
Definition: Record.h:1126
BitsRecTy - 'bits<n>' - Represent a fixed number of bits.
Definition: Record.h:100
ListInit * getValueAsListInit(StringRef FieldName) const
getValueAsListInit - This method looks up the specified field and returns its value as a ListInit...
Definition: Record.cpp:1717
virtual OpInit * clone(std::vector< Init * > &Operands) const =0
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1496
const std::string getNameInitAsString() const
Definition: Record.h:1213
Init * getArg(unsigned Num) const
Definition: Record.h:1068
void Profile(FoldingSetNodeID &ID) const
Definition: Record.cpp:1485
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:573
ArrayRef - Represent a constant reference to an array (0 or more elements consecutively in memory)...
Definition: ArrayRef.h:31
static std::string utostr(uint64_t X, bool isNeg=false)
Definition: StringExtras.h:93
hash_code hash_value(const APFloat &Arg)
See friend declarations above.
Definition: APFloat.cpp:2848
void dump() const
Definition: Record.cpp:1865
virtual unsigned getBitNum() const
getBitNum - This method is used to retrieve the bit number of a bit reference.
Definition: Record.h:351
Init * convertInitializerBitRange(const std::vector< unsigned > &Bits) const override
convertInitializerBitRange - This method is used to implement the bitrange selection operator...
Definition: Record.cpp:1170
const std::string & getName() const
Definition: Record.cpp:1218
Init * Fold(Record *CurRec, MultiClass *CurMultiClass) const override
Definition: Record.cpp:617
virtual Init * getBit(unsigned Bit) const =0
getBit - This method is used to return the initializer for the specified bit.
DagInit * getValueAsDag(StringRef FieldName) const
getValueAsDag - This method looks up the specified field and returns its value as an Dag...
Definition: Record.cpp:1852
void dump() const
Definition: Record.cpp:89
Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const override
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
Definition: Record.cpp:1347
virtual Init * getOperand(unsigned i) const =0
size_t size() const
size - Get the array size.
Definition: ArrayRef.h:134
std::vector< std::string > getValueAsListOfStrings(StringRef FieldName) const
getValueAsListOfStrings - This method looks up the specified field and returns its value as a vector ...
Definition: Record.cpp:1786
bool getValue() const
Definition: Record.h:440
static BitsInit * get(ArrayRef< Init * > Range)
Definition: Record.cpp:266
void resolveReferencesTo(const RecordVal *RV)
resolveReferencesTo - If anything in this record refers to RV, replace the reference to RV with the R...
Definition: Record.cpp:1609
virtual Init * convertInitializerTo(RecTy *Ty) const =0
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:501
static unsigned getHashValue(const TableGenStringKey &Val)
Definition: Record.cpp:68
bool typeIsConvertibleTo(const RecTy *RHS) const override
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:131
FoldingSetNodeID - This class is used to gather all the unique data bits of a node.
Definition: FoldingSet.h:297
OpInit - Base class for operators.
Definition: Record.h:648
#define P(N)
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:1489
static VarInit * get(const std::string &VN, RecTy *T)
Definition: Record.cpp:1202
bool typeIsConvertibleTo(const RecTy *RHS) const override
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:162
std::vector< Record * > getAllDerivedDefinitions(const std::string &ClassName) const
getAllDerivedDefinitions - This method returns all concrete definitions that derive from the specifie...
Definition: Record.cpp:1893
The instances of the Type class are immutable: once they are created, they are never changed...
Definition: Type.h:45
Init * getFieldInit(Record &R, const RecordVal *RV, const std::string &FieldName) const override
getFieldInit - This method complements getFieldType to return the initializer for the specified field...
Definition: Record.cpp:1260
Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const override
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
Definition: Record.cpp:1229
StringInit - "foo" - Represent an initialization by a string value.
Definition: Record.h:547
RecordVector DefPrototypes
Definition: Record.h:1425
UnOpInit - !op (X) - Transform an init.
Definition: Record.h:678
TypedInit * getVariable() const
Definition: Record.h:939
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:1298
T * FindNodeOrInsertPos(const FoldingSetNodeID &ID, void *&InsertPos)
FindNodeOrInsertPos - Look up the node specified by ID.
Definition: FoldingSet.h:451
const RecordVal * getValue(const Init *Name) const
Definition: Record.h:1241
iterator begin() const
Definition: ArrayRef.h:122
for(unsigned i=0, e=MI->getNumOperands();i!=e;++i)
std::vector< int64_t > getValueAsListOfInts(StringRef FieldName) const
getValueAsListOfInts - This method looks up the specified field and returns its value as a vector of ...
Definition: Record.cpp:1768
static TableGenStringKey getTombstoneKey()
Definition: Record.cpp:64
TableGenStringKey - This is a wrapper for std::string suitable for using as a key to a DenseMap...
Definition: Record.cpp:43
StringRecTy - 'string' - Represent an string value.
Definition: Record.h:138
RecTyKind getRecTyKind() const
Definition: Record.h:58
static BitInit * get(bool V)
Definition: Record.cpp:235
TableGenStringKey(const std::string &str)
Definition: Record.cpp:45
static FieldInit * get(Init *R, const std::string &FN)
Definition: Record.cpp:1389
static bool canFitInBitfield(int64_t Value, unsigned NumBits)
canFitInBitfield - Return true if the number of bits is large enough to hold the integer value...
Definition: Record.cpp:408
bool empty() const
empty - Check if the array is empty.
Definition: ArrayRef.h:129
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:1385
ArrayRef< Init * > getValues() const
Definition: Record.h:627
Record * getDef() const
Definition: Record.h:973
DefInit * getDefInit()
get the corresponding DefInit.
Definition: Record.cpp:1576
static std::string itostr(int64_t X)
Definition: StringExtras.h:109
size_t size() const
Definition: Record.h:632
std::vector< Record * > getValueAsListOfDefs(StringRef FieldName) const
getValueAsListOfDefs - This method looks up the specified field and returns its value as a vector of ...
Definition: Record.cpp:1734
FoldingSet - This template class is used to instantiate a specialized implementation of the folding s...
Definition: FoldingSet.h:396
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:1510
virtual Init * resolveReferences(Record &R, const RecordVal *RV) const
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.h:337
Init * QualifyName(Record &CurRec, MultiClass *CurMultiClass, Init *Name, const std::string &Scoper)
QualifyName - Return an Init with a qualifier prefix referring to CurRec's name.
Definition: Record.cpp:1908
const Init * getNameInit() const
Definition: Record.h:1120
int64_t getValueAsInt(StringRef FieldName) const
getValueAsInt - This method looks up the specified field and returns its value as an int64_t...
Definition: Record.cpp:1751
const RecordMap & getClasses() const
Definition: Record.h:1438
Init * convertInitListSlice(const std::vector< unsigned > &Elements) const override
convertInitListSlice - This method is used to implement the list slice selection operator.
Definition: Record.cpp:1186
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:1094
virtual Init * Fold(Record *CurRec, MultiClass *CurMultiClass) const =0
static Init * EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg, RecTy *Type, Record *CurRec, MultiClass *CurMultiClass)
Definition: Record.cpp:885
Init * convertInitializerBitRange(const std::vector< unsigned > &Bits) const override
convertInitializerBitRange - This method is used to implement the bitrange selection operator...
Definition: Record.cpp:314
std::string getAsString() const override
Definition: Record.cpp:120
RecTy * getFieldType(const std::string &FieldName) const override
getFieldType - This method is used to implement the FieldInit class.
Definition: Record.cpp:1373
ArrayRef< SMLoc > getLoc() const
Definition: Record.h:1220
static bool isEqual(const TableGenStringKey &LHS, const TableGenStringKey &RHS)
Definition: Record.cpp:72
This is a 'vector' (really, a variable-sized array), optimized for the case when the array is small...
Definition: SmallVector.h:861
static VarBitInit * get(TypedInit *T, unsigned B)
Definition: Record.cpp:1287
static StringInit * get(StringRef)
Definition: Record.cpp:453
static RecordRecTy * get(Record *R)
Definition: Record.cpp:154
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:325
CHAIN = SC CHAIN, Imm128 - System call.
void dump() const
Definition: Record.cpp:1546
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:1366
Init * getNameInit() const
Definition: Record.h:1210
const_iterator end() const
Definition: Record.h:630
static DefInit * get(Record *)
Definition: Record.cpp:1362
void dump() const
Definition: Record.cpp:1631
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:414
TableGenStringKey(const char *str)
Definition: Record.cpp:46
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:834
StringMap - This is an unconventional map that is specialized for handling keys that are "strings"...
Definition: StringMap.h:214
unsigned getElementNum() const
Definition: Record.h:940
ArrayRef< Record * > getSuperClasses() const
Definition: Record.h:1229
static void ProfileListInit(FoldingSetNodeID &ID, ArrayRef< Init * > Range, RecTy *EltTy)
Definition: Record.cpp:468
LLVM_ATTRIBUTE_NORETURN void PrintFatalError(const Twine &Msg)
bool isTemplateArg(Init *Name) const
Definition: Record.h:1232
LLVM_ATTRIBUTE_UNUSED_RESULT std::enable_if< !is_simple_type< Y >::value, typename cast_retty< X, const Y >::ret_type >::type dyn_cast(const Y &Val)
Definition: Casting.h:285
An opaque object representing a hash code.
Definition: Hashing.h:73
const RecordMap & getDefs() const
Definition: Record.h:1439
Init * getBit(unsigned Bit) const override
getBit - This method is used to return the initializer for the specified bit.
Definition: Record.h:501
IntRecTy - 'int' - Represent an integer value of no particular size.
Definition: Record.h:120
static Init * fixBitInit(const RecordVal *RV, Init *Before, Init *After)
Definition: Record.cpp:340
ArrayRef< RecordVal > getValues() const
Definition: Record.h:1228
Init * resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) const override
resolveListElementReference - This method is used to implement VarListElementInit::resolveReferences...
Definition: Record.cpp:1406
Init * getBit(unsigned Bit) const override
getBit - This method is used to return the initializer for the specified bit.
Definition: Record.cpp:1223
RecordKeeper & getRecords() const
Definition: Record.h:1321
void dump() const
Definition: Record.cpp:1875
static DagInit * get(Init *V, const std::string &VN, ArrayRef< Init * > ArgRange, ArrayRef< std::string > NameRange)
Definition: Record.cpp:1452
static MachineInstr * getDef(unsigned Reg, const MachineRegisterInfo *MRI)
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:843
bool typeIsConvertibleTo(const RecTy *RHS) const override
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:144
unsigned getNumBits() const
Definition: Record.h:111
virtual Init * getBitVar() const
getBitVar - This method is used to retrieve the initializer for bit reference.
Definition: Record.h:347
bool isSubClassOf(const Record *R) const
Definition: Record.h:1291
static UnsetInit * get()
Definition: Record.cpp:216
bool typeIsConvertibleTo(const RecTy *RHS) const override
typeIsConvertibleTo - Return true if all values of 'this' type can be converted to the specified type...
Definition: Record.cpp:102
void addValue(const RecordVal &RV)
Definition: Record.h:1266
static TernOpInit * get(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs, RecTy *Type)
Definition: Record.cpp:859
static VarListElementInit * get(TypedInit *T, unsigned E)
Definition: Record.cpp:1317
#define I(x, y, z)
Definition: MD5.cpp:54
#define N
RecTy * resolveTypes(RecTy *T1, RecTy *T2)
resolveTypes - Find a common type that T1 and T2 convert to.
Definition: Record.cpp:180
VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
Definition: Record.h:881
VarInit - 'Opcode' - Represent a reference to an entire variable object.
Definition: Record.h:836
static ListInit * get(ArrayRef< Init * > Range, RecTy *EltTy)
Definition: Record.cpp:478
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:1075
std::string getAsString() const override
Definition: Record.cpp:150
void AddString(StringRef String)
Definition: FoldingSet.cpp:87
UnaryOp getOpcode() const
Definition: Record.h:711
BitRecTy - 'bit' - Represent a single bit.
Definition: Record.h:82
TernOpInit - !op (X, Y, Z) - Combine two inits.
Definition: Record.h:777
Init * Fold(Record *CurRec, MultiClass *CurMultiClass) const override
Definition: Record.cpp:743
raw_ostream & operator<<(raw_ostream &OS, const APInt &I)
Definition: APInt.h:1738
Record * getRecord() const
Definition: Record.h:204
bool getValueAsBitOrUnset(StringRef FieldName, bool &Unset) const
getValueAsBitOrUnset - This method looks up the specified field and returns its value as a bit...
Definition: Record.cpp:1831
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:1334
DagRecTy - 'dag' - Represent a dag fragment.
Definition: Record.h:175
Init * resolveReferences(Record &R, const RecordVal *RV) const override
resolveReferences - This method is used by classes that refer to other variables which may not be def...
Definition: Record.cpp:349
Init * getBit(unsigned Bit) const override
getBit - This method is used to return the initializer for the specified bit.
Definition: Record.cpp:1400
const std::string & getName() const
Definition: Record.cpp:1542
Init * getNameInit() const
Definition: Record.h:855
LLVM Value Representation.
Definition: Value.h:69
DagInit - (v a, b) - Represent a DAG tree value.
Definition: Record.h:1032
virtual std::string getAsString() const =0
getAsString - Convert this value to a string form.
static void ProfileDagInit(FoldingSetNodeID &ID, Init *V, const std::string &VN, ArrayRef< Init * > ArgRange, ArrayRef< std::string > NameRange)
Definition: Record.cpp:1435
This class implements an extremely fast bulk output stream that can only output to a stream...
Definition: raw_ostream.h:38
TernaryOp getOpcode() const
Definition: Record.h:818
void dump() const
dump - Debugging method that may be called through a debugger, just invokes print on stderr...
Definition: Record.cpp:214
void setName(Init *Name)
Definition: Record.cpp:1586
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:40
unsigned getBitNum() const override
getBitNum - This method is used to retrieve the bit number of a bit reference.
Definition: Record.h:905
virtual std::string getAsString() const =0
Init * convertInitializerTo(RecTy *Ty) const override
convertInitializerTo - This virtual function converts to the appropriate Init based on the passed in ...
Definition: Record.cpp:221
ListRecTy * getListTy()
getListTy - Returns the type representing list<this>.
Definition: Record.cpp:91
Init * convertInitializerBitRange(const std::vector< unsigned > &Bits) const override
convertInitializerBitRange - This method is used to implement the bitrange selection operator...
Definition: Record.cpp:441
#define T1
std::string getAsString() const override
getAsString - Convert this value to a string form.
Definition: Record.cpp:1329
static IntRecTy * get()
Definition: Record.h:129
RecordVal(Init *N, RecTy *T, bool P)
Definition: Record.cpp:1530