1 //===- Record.h - Classes to represent Table Records ------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines the main TableGen data structures, including the TableGen
11 // types, values, and high-level data structures.
13 //===----------------------------------------------------------------------===//
18 #include "llvm/Support/SourceMgr.h"
19 #include "llvm/System/DataTypes.h"
20 #include "llvm/Support/raw_ostream.h"
54 class VarListElementInit;
61 //===----------------------------------------------------------------------===//
63 //===----------------------------------------------------------------------===//
68 virtual std::string getAsString() const = 0;
69 void print(raw_ostream &OS) const { OS << getAsString(); }
72 /// typeIsConvertibleTo - Return true if all values of 'this' type can be
73 /// converted to the specified type.
74 virtual bool typeIsConvertibleTo(const RecTy *RHS) const = 0;
76 public: // These methods should only be called from subclasses of Init
77 virtual Init *convertValue( UnsetInit *UI) { return 0; }
78 virtual Init *convertValue( BitInit *BI) { return 0; }
79 virtual Init *convertValue( BitsInit *BI) { return 0; }
80 virtual Init *convertValue( IntInit *II) { return 0; }
81 virtual Init *convertValue(StringInit *SI) { return 0; }
82 virtual Init *convertValue( ListInit *LI) { return 0; }
83 virtual Init *convertValue( UnOpInit *UI) {
84 return convertValue((TypedInit*)UI);
86 virtual Init *convertValue( BinOpInit *UI) {
87 return convertValue((TypedInit*)UI);
89 virtual Init *convertValue( TernOpInit *UI) {
90 return convertValue((TypedInit*)UI);
92 virtual Init *convertValue( CodeInit *CI) { return 0; }
93 virtual Init *convertValue(VarBitInit *VB) { return 0; }
94 virtual Init *convertValue( DefInit *DI) { return 0; }
95 virtual Init *convertValue( DagInit *DI) { return 0; }
96 virtual Init *convertValue( TypedInit *TI) { return 0; }
97 virtual Init *convertValue( VarInit *VI) {
98 return convertValue((TypedInit*)VI);
100 virtual Init *convertValue( FieldInit *FI) {
101 return convertValue((TypedInit*)FI);
104 public: // These methods should only be called by subclasses of RecTy.
105 // baseClassOf - These virtual methods should be overloaded to return true iff
106 // all values of type 'RHS' can be converted to the 'this' type.
107 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
108 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
109 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
110 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
111 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
112 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
113 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
114 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
117 inline raw_ostream &operator<<(raw_ostream &OS, const RecTy &Ty) {
123 /// BitRecTy - 'bit' - Represent a single bit
125 class BitRecTy : public RecTy {
127 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
128 virtual Init *convertValue( BitInit *BI) { return (Init*)BI; }
129 virtual Init *convertValue( BitsInit *BI);
130 virtual Init *convertValue( IntInit *II);
131 virtual Init *convertValue(StringInit *SI) { return 0; }
132 virtual Init *convertValue( ListInit *LI) { return 0; }
133 virtual Init *convertValue( CodeInit *CI) { return 0; }
134 virtual Init *convertValue(VarBitInit *VB) { return (Init*)VB; }
135 virtual Init *convertValue( DefInit *DI) { return 0; }
136 virtual Init *convertValue( DagInit *DI) { return 0; }
137 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
138 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
139 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
140 virtual Init *convertValue( TypedInit *TI);
141 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
142 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
144 std::string getAsString() const { return "bit"; }
146 bool typeIsConvertibleTo(const RecTy *RHS) const {
147 return RHS->baseClassOf(this);
149 virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
150 virtual bool baseClassOf(const BitsRecTy *RHS) const;
151 virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
152 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
153 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
154 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
155 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
156 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
161 // BitsRecTy - 'bits<n>' - Represent a fixed number of bits
162 /// BitsRecTy - 'bits<n>' - Represent a fixed number of bits
164 class BitsRecTy : public RecTy {
167 explicit BitsRecTy(unsigned Sz) : Size(Sz) {}
169 unsigned getNumBits() const { return Size; }
171 virtual Init *convertValue( UnsetInit *UI);
172 virtual Init *convertValue( BitInit *UI);
173 virtual Init *convertValue( BitsInit *BI);
174 virtual Init *convertValue( IntInit *II);
175 virtual Init *convertValue(StringInit *SI) { return 0; }
176 virtual Init *convertValue( ListInit *LI) { return 0; }
177 virtual Init *convertValue( CodeInit *CI) { return 0; }
178 virtual Init *convertValue(VarBitInit *VB) { return 0; }
179 virtual Init *convertValue( DefInit *DI) { return 0; }
180 virtual Init *convertValue( DagInit *DI) { return 0; }
181 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
182 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
183 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
184 virtual Init *convertValue( TypedInit *TI);
185 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
186 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
188 std::string getAsString() const;
190 bool typeIsConvertibleTo(const RecTy *RHS) const {
191 return RHS->baseClassOf(this);
193 virtual bool baseClassOf(const BitRecTy *RHS) const { return Size == 1; }
194 virtual bool baseClassOf(const BitsRecTy *RHS) const {
195 return RHS->Size == Size;
197 virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
198 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
199 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
200 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
201 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
202 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
207 /// IntRecTy - 'int' - Represent an integer value of no particular size
209 class IntRecTy : public RecTy {
211 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
212 virtual Init *convertValue( BitInit *BI);
213 virtual Init *convertValue( BitsInit *BI);
214 virtual Init *convertValue( IntInit *II) { return (Init*)II; }
215 virtual Init *convertValue(StringInit *SI) { return 0; }
216 virtual Init *convertValue( ListInit *LI) { return 0; }
217 virtual Init *convertValue( CodeInit *CI) { return 0; }
218 virtual Init *convertValue(VarBitInit *VB) { return 0; }
219 virtual Init *convertValue( DefInit *DI) { return 0; }
220 virtual Init *convertValue( DagInit *DI) { return 0; }
221 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
222 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
223 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
224 virtual Init *convertValue( TypedInit *TI);
225 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
226 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
228 std::string getAsString() const { return "int"; }
230 bool typeIsConvertibleTo(const RecTy *RHS) const {
231 return RHS->baseClassOf(this);
234 virtual bool baseClassOf(const BitRecTy *RHS) const { return true; }
235 virtual bool baseClassOf(const BitsRecTy *RHS) const { return true; }
236 virtual bool baseClassOf(const IntRecTy *RHS) const { return true; }
237 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
238 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
239 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
240 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
241 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
245 /// StringRecTy - 'string' - Represent an string value
247 class StringRecTy : public RecTy {
249 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
250 virtual Init *convertValue( BitInit *BI) { return 0; }
251 virtual Init *convertValue( BitsInit *BI) { return 0; }
252 virtual Init *convertValue( IntInit *II) { return 0; }
253 virtual Init *convertValue(StringInit *SI) { return (Init*)SI; }
254 virtual Init *convertValue( ListInit *LI) { return 0; }
255 virtual Init *convertValue( UnOpInit *BO);
256 virtual Init *convertValue( BinOpInit *BO);
257 virtual Init *convertValue( TernOpInit *BO) { return RecTy::convertValue(BO);}
259 virtual Init *convertValue( CodeInit *CI) { return 0; }
260 virtual Init *convertValue(VarBitInit *VB) { return 0; }
261 virtual Init *convertValue( DefInit *DI) { return 0; }
262 virtual Init *convertValue( DagInit *DI) { return 0; }
263 virtual Init *convertValue( TypedInit *TI);
264 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
265 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
267 std::string getAsString() const { return "string"; }
269 bool typeIsConvertibleTo(const RecTy *RHS) const {
270 return RHS->baseClassOf(this);
273 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
274 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
275 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
276 virtual bool baseClassOf(const StringRecTy *RHS) const { return true; }
277 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
278 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
279 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
280 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
283 // ListRecTy - 'list<Ty>' - Represent a list of values, all of which must be of
284 // the specified type.
285 /// ListRecTy - 'list<Ty>' - Represent a list of values, all of which must
286 /// be of the specified type.
288 class ListRecTy : public RecTy {
291 explicit ListRecTy(RecTy *T) : Ty(T) {}
293 RecTy *getElementType() const { return Ty; }
295 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
296 virtual Init *convertValue( BitInit *BI) { return 0; }
297 virtual Init *convertValue( BitsInit *BI) { return 0; }
298 virtual Init *convertValue( IntInit *II) { return 0; }
299 virtual Init *convertValue(StringInit *SI) { return 0; }
300 virtual Init *convertValue( ListInit *LI);
301 virtual Init *convertValue( CodeInit *CI) { return 0; }
302 virtual Init *convertValue(VarBitInit *VB) { return 0; }
303 virtual Init *convertValue( DefInit *DI) { return 0; }
304 virtual Init *convertValue( DagInit *DI) { return 0; }
305 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
306 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
307 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
308 virtual Init *convertValue( TypedInit *TI);
309 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
310 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
312 std::string getAsString() const;
314 bool typeIsConvertibleTo(const RecTy *RHS) const {
315 return RHS->baseClassOf(this);
318 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
319 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
320 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
321 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
322 virtual bool baseClassOf(const ListRecTy *RHS) const {
323 return RHS->getElementType()->typeIsConvertibleTo(Ty);
325 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
326 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
327 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
330 /// CodeRecTy - 'code' - Represent an code fragment, function or method.
332 class CodeRecTy : public RecTy {
334 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
335 virtual Init *convertValue( BitInit *BI) { return 0; }
336 virtual Init *convertValue( BitsInit *BI) { return 0; }
337 virtual Init *convertValue( IntInit *II) { return 0; }
338 virtual Init *convertValue(StringInit *SI) { return 0; }
339 virtual Init *convertValue( ListInit *LI) { return 0; }
340 virtual Init *convertValue( CodeInit *CI) { return (Init*)CI; }
341 virtual Init *convertValue(VarBitInit *VB) { return 0; }
342 virtual Init *convertValue( DefInit *DI) { return 0; }
343 virtual Init *convertValue( DagInit *DI) { return 0; }
344 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
345 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
346 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
347 virtual Init *convertValue( TypedInit *TI);
348 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
349 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
351 std::string getAsString() const { return "code"; }
353 bool typeIsConvertibleTo(const RecTy *RHS) const {
354 return RHS->baseClassOf(this);
356 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
357 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
358 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
359 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
360 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
361 virtual bool baseClassOf(const CodeRecTy *RHS) const { return true; }
362 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
363 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
366 /// DagRecTy - 'dag' - Represent a dag fragment
368 class DagRecTy : public RecTy {
370 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
371 virtual Init *convertValue( BitInit *BI) { return 0; }
372 virtual Init *convertValue( BitsInit *BI) { return 0; }
373 virtual Init *convertValue( IntInit *II) { return 0; }
374 virtual Init *convertValue(StringInit *SI) { return 0; }
375 virtual Init *convertValue( ListInit *LI) { return 0; }
376 virtual Init *convertValue( CodeInit *CI) { return 0; }
377 virtual Init *convertValue(VarBitInit *VB) { return 0; }
378 virtual Init *convertValue( DefInit *DI) { return 0; }
379 virtual Init *convertValue( UnOpInit *BO);
380 virtual Init *convertValue( BinOpInit *BO);
381 virtual Init *convertValue( TernOpInit *BO) { return RecTy::convertValue(BO);}
382 virtual Init *convertValue( DagInit *CI) { return (Init*)CI; }
383 virtual Init *convertValue( TypedInit *TI);
384 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
385 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
387 std::string getAsString() const { return "dag"; }
389 bool typeIsConvertibleTo(const RecTy *RHS) const {
390 return RHS->baseClassOf(this);
393 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
394 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
395 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
396 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
397 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
398 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
399 virtual bool baseClassOf(const DagRecTy *RHS) const { return true; }
400 virtual bool baseClassOf(const RecordRecTy *RHS) const { return false; }
404 /// RecordRecTy - '[classname]' - Represent an instance of a class, such as:
407 class RecordRecTy : public RecTy {
410 explicit RecordRecTy(Record *R) : Rec(R) {}
412 Record *getRecord() const { return Rec; }
414 virtual Init *convertValue( UnsetInit *UI) { return (Init*)UI; }
415 virtual Init *convertValue( BitInit *BI) { return 0; }
416 virtual Init *convertValue( BitsInit *BI) { return 0; }
417 virtual Init *convertValue( IntInit *II) { return 0; }
418 virtual Init *convertValue(StringInit *SI) { return 0; }
419 virtual Init *convertValue( ListInit *LI) { return 0; }
420 virtual Init *convertValue( CodeInit *CI) { return 0; }
421 virtual Init *convertValue(VarBitInit *VB) { return 0; }
422 virtual Init *convertValue( UnOpInit *UI) { return RecTy::convertValue(UI);}
423 virtual Init *convertValue( BinOpInit *UI) { return RecTy::convertValue(UI);}
424 virtual Init *convertValue( TernOpInit *UI) { return RecTy::convertValue(UI);}
425 virtual Init *convertValue( DefInit *DI);
426 virtual Init *convertValue( DagInit *DI) { return 0; }
427 virtual Init *convertValue( TypedInit *VI);
428 virtual Init *convertValue( VarInit *VI) { return RecTy::convertValue(VI);}
429 virtual Init *convertValue( FieldInit *FI) { return RecTy::convertValue(FI);}
431 std::string getAsString() const;
433 bool typeIsConvertibleTo(const RecTy *RHS) const {
434 return RHS->baseClassOf(this);
436 virtual bool baseClassOf(const BitRecTy *RHS) const { return false; }
437 virtual bool baseClassOf(const BitsRecTy *RHS) const { return false; }
438 virtual bool baseClassOf(const IntRecTy *RHS) const { return false; }
439 virtual bool baseClassOf(const StringRecTy *RHS) const { return false; }
440 virtual bool baseClassOf(const ListRecTy *RHS) const { return false; }
441 virtual bool baseClassOf(const CodeRecTy *RHS) const { return false; }
442 virtual bool baseClassOf(const DagRecTy *RHS) const { return false; }
443 virtual bool baseClassOf(const RecordRecTy *RHS) const;
446 /// resolveTypes - Find a common type that T1 and T2 convert to.
447 /// Return 0 if no such type exists.
449 RecTy *resolveTypes(RecTy *T1, RecTy *T2);
451 //===----------------------------------------------------------------------===//
452 // Initializer Classes
453 //===----------------------------------------------------------------------===//
458 /// isComplete - This virtual method should be overridden by values that may
459 /// not be completely specified yet.
460 virtual bool isComplete() const { return true; }
462 /// print - Print out this value.
463 void print(raw_ostream &OS) const { OS << getAsString(); }
465 /// getAsString - Convert this value to a string form.
466 virtual std::string getAsString() const = 0;
468 /// dump - Debugging method that may be called through a debugger, just
469 /// invokes print on stderr.
472 /// convertInitializerTo - This virtual function is a simple call-back
473 /// function that should be overridden to call the appropriate
474 /// RecTy::convertValue method.
476 virtual Init *convertInitializerTo(RecTy *Ty) = 0;
478 /// convertInitializerBitRange - This method is used to implement the bitrange
479 /// selection operator. Given an initializer, it selects the specified bits
480 /// out, returning them as a new init of bits type. If it is not legal to use
481 /// the bit subscript operator on this initializer, return null.
483 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits) {
487 /// convertInitListSlice - This method is used to implement the list slice
488 /// selection operator. Given an initializer, it selects the specified list
489 /// elements, returning them as a new init of list type. If it is not legal
490 /// to take a slice of this, return null.
492 virtual Init *convertInitListSlice(const std::vector<unsigned> &Elements) {
496 /// getFieldType - This method is used to implement the FieldInit class.
497 /// Implementors of this method should return the type of the named field if
498 /// they are of record type.
500 virtual RecTy *getFieldType(const std::string &FieldName) const { return 0; }
502 /// getFieldInit - This method complements getFieldType to return the
503 /// initializer for the specified field. If getFieldType returns non-null
504 /// this method should return non-null, otherwise it returns null.
506 virtual Init *getFieldInit(Record &R, const RecordVal *RV,
507 const std::string &FieldName) const {
511 /// resolveReferences - This method is used by classes that refer to other
512 /// variables which may not be defined at the time the expression is formed.
513 /// If a value is set for the variable later, this method will be called on
514 /// users of the value to allow the value to propagate out.
516 virtual Init *resolveReferences(Record &R, const RecordVal *RV) {
521 inline raw_ostream &operator<<(raw_ostream &OS, const Init &I) {
522 I.print(OS); return OS;
525 /// TypedInit - This is the common super-class of types that have a specific,
528 class TypedInit : public Init {
531 explicit TypedInit(RecTy *T) : Ty(T) {}
533 RecTy *getType() const { return Ty; }
535 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
536 virtual Init *convertInitListSlice(const std::vector<unsigned> &Elements);
538 /// getFieldType - This method is used to implement the FieldInit class.
539 /// Implementors of this method should return the type of the named field if
540 /// they are of record type.
542 virtual RecTy *getFieldType(const std::string &FieldName) const;
544 /// resolveBitReference - This method is used to implement
545 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
546 /// simply return the resolved value, otherwise we return null.
548 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
551 /// resolveListElementReference - This method is used to implement
552 /// VarListElementInit::resolveReferences. If the list element is resolvable
553 /// now, we return the resolved value, otherwise we return null.
554 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
559 /// UnsetInit - ? - Represents an uninitialized value
561 class UnsetInit : public Init {
563 virtual Init *convertInitializerTo(RecTy *Ty) {
564 return Ty->convertValue(this);
567 virtual bool isComplete() const { return false; }
568 virtual std::string getAsString() const { return "?"; }
572 /// BitInit - true/false - Represent a concrete initializer for a bit.
574 class BitInit : public Init {
577 explicit BitInit(bool V) : Value(V) {}
579 bool getValue() const { return Value; }
581 virtual Init *convertInitializerTo(RecTy *Ty) {
582 return Ty->convertValue(this);
585 virtual std::string getAsString() const { return Value ? "1" : "0"; }
588 /// BitsInit - { a, b, c } - Represents an initializer for a BitsRecTy value.
589 /// It contains a vector of bits, whose size is determined by the type.
591 class BitsInit : public Init {
592 std::vector<Init*> Bits;
594 explicit BitsInit(unsigned Size) : Bits(Size) {}
596 unsigned getNumBits() const { return Bits.size(); }
598 Init *getBit(unsigned Bit) const {
599 assert(Bit < Bits.size() && "Bit index out of range!");
602 void setBit(unsigned Bit, Init *V) {
603 assert(Bit < Bits.size() && "Bit index out of range!");
604 assert(Bits[Bit] == 0 && "Bit already set!");
608 virtual Init *convertInitializerTo(RecTy *Ty) {
609 return Ty->convertValue(this);
611 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
613 virtual bool isComplete() const {
614 for (unsigned i = 0; i != getNumBits(); ++i)
615 if (!getBit(i)->isComplete()) return false;
618 bool allInComplete() const {
619 for (unsigned i = 0; i != getNumBits(); ++i)
620 if (getBit(i)->isComplete()) return false;
623 virtual std::string getAsString() const;
625 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
629 /// IntInit - 7 - Represent an initalization by a literal integer value.
631 class IntInit : public TypedInit {
634 explicit IntInit(int64_t V) : TypedInit(new IntRecTy), Value(V) {}
636 int64_t getValue() const { return Value; }
638 virtual Init *convertInitializerTo(RecTy *Ty) {
639 return Ty->convertValue(this);
641 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
643 virtual std::string getAsString() const;
645 /// resolveBitReference - This method is used to implement
646 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
647 /// simply return the resolved value, otherwise we return null.
649 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
651 assert(0 && "Illegal bit reference off int");
655 /// resolveListElementReference - This method is used to implement
656 /// VarListElementInit::resolveReferences. If the list element is resolvable
657 /// now, we return the resolved value, otherwise we return null.
658 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
660 assert(0 && "Illegal element reference off int");
666 /// StringInit - "foo" - Represent an initialization by a string value.
668 class StringInit : public TypedInit {
671 explicit StringInit(const std::string &V)
672 : TypedInit(new StringRecTy), Value(V) {}
674 const std::string &getValue() const { return Value; }
676 virtual Init *convertInitializerTo(RecTy *Ty) {
677 return Ty->convertValue(this);
680 virtual std::string getAsString() const { return "\"" + Value + "\""; }
682 /// resolveBitReference - This method is used to implement
683 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
684 /// simply return the resolved value, otherwise we return null.
686 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
688 assert(0 && "Illegal bit reference off string");
692 /// resolveListElementReference - This method is used to implement
693 /// VarListElementInit::resolveReferences. If the list element is resolvable
694 /// now, we return the resolved value, otherwise we return null.
695 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
697 assert(0 && "Illegal element reference off string");
702 /// CodeInit - "[{...}]" - Represent a code fragment.
704 class CodeInit : public Init {
707 explicit CodeInit(const std::string &V) : Value(V) {}
709 const std::string getValue() const { return Value; }
711 virtual Init *convertInitializerTo(RecTy *Ty) {
712 return Ty->convertValue(this);
715 virtual std::string getAsString() const { return "[{" + Value + "}]"; }
718 /// ListInit - [AL, AH, CL] - Represent a list of defs
720 class ListInit : public TypedInit {
721 std::vector<Init*> Values;
723 typedef std::vector<Init*>::iterator iterator;
724 typedef std::vector<Init*>::const_iterator const_iterator;
726 explicit ListInit(std::vector<Init*> &Vs, RecTy *EltTy)
727 : TypedInit(new ListRecTy(EltTy)) {
730 explicit ListInit(iterator Start, iterator End, RecTy *EltTy)
731 : TypedInit(new ListRecTy(EltTy)), Values(Start, End) {}
733 unsigned getSize() const { return Values.size(); }
734 Init *getElement(unsigned i) const {
735 assert(i < Values.size() && "List element index out of range!");
739 Record *getElementAsRecord(unsigned i) const;
741 Init *convertInitListSlice(const std::vector<unsigned> &Elements);
743 virtual Init *convertInitializerTo(RecTy *Ty) {
744 return Ty->convertValue(this);
747 /// resolveReferences - This method is used by classes that refer to other
748 /// variables which may not be defined at the time they expression is formed.
749 /// If a value is set for the variable later, this method will be called on
750 /// users of the value to allow the value to propagate out.
752 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
754 virtual std::string getAsString() const;
756 inline iterator begin() { return Values.begin(); }
757 inline const_iterator begin() const { return Values.begin(); }
758 inline iterator end () { return Values.end(); }
759 inline const_iterator end () const { return Values.end(); }
761 inline size_t size () const { return Values.size(); }
762 inline bool empty() const { return Values.empty(); }
764 /// resolveBitReference - This method is used to implement
765 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
766 /// simply return the resolved value, otherwise we return null.
768 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
770 assert(0 && "Illegal bit reference off list");
774 /// resolveListElementReference - This method is used to implement
775 /// VarListElementInit::resolveReferences. If the list element is resolvable
776 /// now, we return the resolved value, otherwise we return null.
777 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
782 /// OpInit - Base class for operators
784 class OpInit : public TypedInit {
786 OpInit(RecTy *Type) : TypedInit(Type) {}
788 // Clone - Clone this operator, replacing arguments with the new list
789 virtual OpInit *clone(std::vector<Init *> &Operands) = 0;
791 virtual int getNumOperands() const = 0;
792 virtual Init *getOperand(int i) = 0;
794 // Fold - If possible, fold this to a simpler init. Return this if not
796 virtual Init *Fold(Record *CurRec, MultiClass *CurMultiClass) = 0;
798 virtual Init *convertInitializerTo(RecTy *Ty) {
799 return Ty->convertValue(this);
802 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
804 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
809 /// UnOpInit - !op (X) - Transform an init.
811 class UnOpInit : public OpInit {
813 enum UnaryOp { CAST, CAR, CDR, LNULL };
818 UnOpInit(UnaryOp opc, Init *lhs, RecTy *Type) :
819 OpInit(Type), Opc(opc), LHS(lhs) {
822 // Clone - Clone this operator, replacing arguments with the new list
823 virtual OpInit *clone(std::vector<Init *> &Operands) {
824 assert(Operands.size() == 1 &&
825 "Wrong number of operands for unary operation");
826 return new UnOpInit(getOpcode(), *Operands.begin(), getType());
829 int getNumOperands() const { return 1; }
830 Init *getOperand(int i) {
831 assert(i == 0 && "Invalid operand id for unary operator");
835 UnaryOp getOpcode() const { return Opc; }
836 Init *getOperand() const { return LHS; }
838 // Fold - If possible, fold this to a simpler init. Return this if not
840 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
842 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
844 virtual std::string getAsString() const;
847 /// BinOpInit - !op (X, Y) - Combine two inits.
849 class BinOpInit : public OpInit {
851 enum BinaryOp { SHL, SRA, SRL, STRCONCAT, CONCAT, EQ };
856 BinOpInit(BinaryOp opc, Init *lhs, Init *rhs, RecTy *Type) :
857 OpInit(Type), Opc(opc), LHS(lhs), RHS(rhs) {
860 // Clone - Clone this operator, replacing arguments with the new list
861 virtual OpInit *clone(std::vector<Init *> &Operands) {
862 assert(Operands.size() == 2 &&
863 "Wrong number of operands for binary operation");
864 return new BinOpInit(getOpcode(), Operands[0], Operands[1], getType());
867 int getNumOperands() const { return 2; }
868 Init *getOperand(int i) {
869 assert((i == 0 || i == 1) && "Invalid operand id for binary operator");
877 BinaryOp getOpcode() const { return Opc; }
878 Init *getLHS() const { return LHS; }
879 Init *getRHS() const { return RHS; }
881 // Fold - If possible, fold this to a simpler init. Return this if not
883 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
885 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
887 virtual std::string getAsString() const;
890 /// TernOpInit - !op (X, Y, Z) - Combine two inits.
892 class TernOpInit : public OpInit {
894 enum TernaryOp { SUBST, FOREACH, IF };
897 Init *LHS, *MHS, *RHS;
899 TernOpInit(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs, RecTy *Type) :
900 OpInit(Type), Opc(opc), LHS(lhs), MHS(mhs), RHS(rhs) {
903 // Clone - Clone this operator, replacing arguments with the new list
904 virtual OpInit *clone(std::vector<Init *> &Operands) {
905 assert(Operands.size() == 3 &&
906 "Wrong number of operands for ternary operation");
907 return new TernOpInit(getOpcode(), Operands[0], Operands[1], Operands[2],
911 int getNumOperands() const { return 3; }
912 Init *getOperand(int i) {
913 assert((i == 0 || i == 1 || i == 2) &&
914 "Invalid operand id for ternary operator");
924 TernaryOp getOpcode() const { return Opc; }
925 Init *getLHS() const { return LHS; }
926 Init *getMHS() const { return MHS; }
927 Init *getRHS() const { return RHS; }
929 // Fold - If possible, fold this to a simpler init. Return this if not
931 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
933 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
935 virtual std::string getAsString() const;
939 /// VarInit - 'Opcode' - Represent a reference to an entire variable object.
941 class VarInit : public TypedInit {
944 explicit VarInit(const std::string &VN, RecTy *T)
945 : TypedInit(T), VarName(VN) {}
947 virtual Init *convertInitializerTo(RecTy *Ty) {
948 return Ty->convertValue(this);
951 const std::string &getName() const { return VarName; }
953 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
955 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
958 virtual RecTy *getFieldType(const std::string &FieldName) const;
959 virtual Init *getFieldInit(Record &R, const RecordVal *RV,
960 const std::string &FieldName) const;
962 /// resolveReferences - This method is used by classes that refer to other
963 /// variables which may not be defined at the time they expression is formed.
964 /// If a value is set for the variable later, this method will be called on
965 /// users of the value to allow the value to propagate out.
967 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
969 virtual std::string getAsString() const { return VarName; }
973 /// VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
975 class VarBitInit : public Init {
979 VarBitInit(TypedInit *T, unsigned B) : TI(T), Bit(B) {
980 assert(T->getType() && dynamic_cast<BitsRecTy*>(T->getType()) &&
981 ((BitsRecTy*)T->getType())->getNumBits() > B &&
982 "Illegal VarBitInit expression!");
985 virtual Init *convertInitializerTo(RecTy *Ty) {
986 return Ty->convertValue(this);
989 TypedInit *getVariable() const { return TI; }
990 unsigned getBitNum() const { return Bit; }
992 virtual std::string getAsString() const;
993 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
996 /// VarListElementInit - List[4] - Represent access to one element of a var or
998 class VarListElementInit : public TypedInit {
1002 VarListElementInit(TypedInit *T, unsigned E)
1003 : TypedInit(dynamic_cast<ListRecTy*>(T->getType())->getElementType()),
1005 assert(T->getType() && dynamic_cast<ListRecTy*>(T->getType()) &&
1006 "Illegal VarBitInit expression!");
1009 virtual Init *convertInitializerTo(RecTy *Ty) {
1010 return Ty->convertValue(this);
1013 TypedInit *getVariable() const { return TI; }
1014 unsigned getElementNum() const { return Element; }
1016 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1019 /// resolveListElementReference - This method is used to implement
1020 /// VarListElementInit::resolveReferences. If the list element is resolvable
1021 /// now, we return the resolved value, otherwise we return null.
1022 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1025 virtual std::string getAsString() const;
1026 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1029 /// DefInit - AL - Represent a reference to a 'def' in the description
1031 class DefInit : public TypedInit {
1034 explicit DefInit(Record *D) : TypedInit(new RecordRecTy(D)), Def(D) {}
1036 virtual Init *convertInitializerTo(RecTy *Ty) {
1037 return Ty->convertValue(this);
1040 Record *getDef() const { return Def; }
1042 //virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
1044 virtual RecTy *getFieldType(const std::string &FieldName) const;
1045 virtual Init *getFieldInit(Record &R, const RecordVal *RV,
1046 const std::string &FieldName) const;
1048 virtual std::string getAsString() const;
1050 /// resolveBitReference - This method is used to implement
1051 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
1052 /// simply return the resolved value, otherwise we return null.
1054 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1056 assert(0 && "Illegal bit reference off def");
1060 /// resolveListElementReference - This method is used to implement
1061 /// VarListElementInit::resolveReferences. If the list element is resolvable
1062 /// now, we return the resolved value, otherwise we return null.
1063 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1065 assert(0 && "Illegal element reference off def");
1071 /// FieldInit - X.Y - Represent a reference to a subfield of a variable
1073 class FieldInit : public TypedInit {
1074 Init *Rec; // Record we are referring to
1075 std::string FieldName; // Field we are accessing
1077 FieldInit(Init *R, const std::string &FN)
1078 : TypedInit(R->getFieldType(FN)), Rec(R), FieldName(FN) {
1079 assert(getType() && "FieldInit with non-record type!");
1082 virtual Init *convertInitializerTo(RecTy *Ty) {
1083 return Ty->convertValue(this);
1086 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1088 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1091 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1093 virtual std::string getAsString() const {
1094 return Rec->getAsString() + "." + FieldName;
1098 /// DagInit - (v a, b) - Represent a DAG tree value. DAG inits are required
1099 /// to have at least one value then a (possibly empty) list of arguments. Each
1100 /// argument can have a name associated with it.
1102 class DagInit : public TypedInit {
1104 std::string ValName;
1105 std::vector<Init*> Args;
1106 std::vector<std::string> ArgNames;
1108 DagInit(Init *V, std::string VN,
1109 const std::vector<std::pair<Init*, std::string> > &args)
1110 : TypedInit(new DagRecTy), Val(V), ValName(VN) {
1111 Args.reserve(args.size());
1112 ArgNames.reserve(args.size());
1113 for (unsigned i = 0, e = args.size(); i != e; ++i) {
1114 Args.push_back(args[i].first);
1115 ArgNames.push_back(args[i].second);
1118 DagInit(Init *V, std::string VN, const std::vector<Init*> &args,
1119 const std::vector<std::string> &argNames)
1120 : TypedInit(new DagRecTy), Val(V), ValName(VN), Args(args),
1121 ArgNames(argNames) { }
1123 virtual Init *convertInitializerTo(RecTy *Ty) {
1124 return Ty->convertValue(this);
1127 Init *getOperator() const { return Val; }
1129 const std::string &getName() const { return ValName; }
1131 unsigned getNumArgs() const { return Args.size(); }
1132 Init *getArg(unsigned Num) const {
1133 assert(Num < Args.size() && "Arg number out of range!");
1136 const std::string &getArgName(unsigned Num) const {
1137 assert(Num < ArgNames.size() && "Arg number out of range!");
1138 return ArgNames[Num];
1141 void setArg(unsigned Num, Init *I) {
1142 assert(Num < Args.size() && "Arg number out of range!");
1146 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1148 virtual std::string getAsString() const;
1150 typedef std::vector<Init*>::iterator arg_iterator;
1151 typedef std::vector<Init*>::const_iterator const_arg_iterator;
1152 typedef std::vector<std::string>::iterator name_iterator;
1153 typedef std::vector<std::string>::const_iterator const_name_iterator;
1155 inline arg_iterator arg_begin() { return Args.begin(); }
1156 inline const_arg_iterator arg_begin() const { return Args.begin(); }
1157 inline arg_iterator arg_end () { return Args.end(); }
1158 inline const_arg_iterator arg_end () const { return Args.end(); }
1160 inline size_t arg_size () const { return Args.size(); }
1161 inline bool arg_empty() const { return Args.empty(); }
1163 inline name_iterator name_begin() { return ArgNames.begin(); }
1164 inline const_name_iterator name_begin() const { return ArgNames.begin(); }
1165 inline name_iterator name_end () { return ArgNames.end(); }
1166 inline const_name_iterator name_end () const { return ArgNames.end(); }
1168 inline size_t name_size () const { return ArgNames.size(); }
1169 inline bool name_empty() const { return ArgNames.empty(); }
1171 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1173 assert(0 && "Illegal bit reference off dag");
1177 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1179 assert(0 && "Illegal element reference off dag");
1184 //===----------------------------------------------------------------------===//
1185 // High-Level Classes
1186 //===----------------------------------------------------------------------===//
1194 RecordVal(const std::string &N, RecTy *T, unsigned P);
1196 const std::string &getName() const { return Name; }
1198 unsigned getPrefix() const { return Prefix; }
1199 RecTy *getType() const { return Ty; }
1200 Init *getValue() const { return Value; }
1202 bool setValue(Init *V) {
1204 Value = V->convertInitializerTo(Ty);
1212 void print(raw_ostream &OS, bool PrintSem = true) const;
1215 inline raw_ostream &operator<<(raw_ostream &OS, const RecordVal &RV) {
1216 RV.print(OS << " ");
1221 static unsigned LastID;
1223 // Unique record ID.
1227 std::vector<std::string> TemplateArgs;
1228 std::vector<RecordVal> Values;
1229 std::vector<Record*> SuperClasses;
1232 explicit Record(const std::string &N, SMLoc loc) :
1233 ID(LastID++), Name(N), Loc(loc) {}
1237 static unsigned getNewUID() { return LastID++; }
1240 unsigned getID() const { return ID; }
1242 const std::string &getName() const { return Name; }
1243 void setName(const std::string &Name); // Also updates RecordKeeper.
1245 SMLoc getLoc() const { return Loc; }
1247 const std::vector<std::string> &getTemplateArgs() const {
1248 return TemplateArgs;
1250 const std::vector<RecordVal> &getValues() const { return Values; }
1251 const std::vector<Record*> &getSuperClasses() const { return SuperClasses; }
1253 bool isTemplateArg(StringRef Name) const {
1254 for (unsigned i = 0, e = TemplateArgs.size(); i != e; ++i)
1255 if (TemplateArgs[i] == Name) return true;
1259 const RecordVal *getValue(StringRef Name) const {
1260 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1261 if (Values[i].getName() == Name) return &Values[i];
1264 RecordVal *getValue(StringRef Name) {
1265 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1266 if (Values[i].getName() == Name) return &Values[i];
1270 void addTemplateArg(StringRef Name) {
1271 assert(!isTemplateArg(Name) && "Template arg already defined!");
1272 TemplateArgs.push_back(Name);
1275 void addValue(const RecordVal &RV) {
1276 assert(getValue(RV.getName()) == 0 && "Value already added!");
1277 Values.push_back(RV);
1280 void removeValue(StringRef Name) {
1281 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1282 if (Values[i].getName() == Name) {
1283 Values.erase(Values.begin()+i);
1286 assert(0 && "Cannot remove an entry that does not exist!");
1289 bool isSubClassOf(const Record *R) const {
1290 for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
1291 if (SuperClasses[i] == R)
1296 bool isSubClassOf(StringRef Name) const {
1297 for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
1298 if (SuperClasses[i]->getName() == Name)
1303 void addSuperClass(Record *R) {
1304 assert(!isSubClassOf(R) && "Already subclassing record!");
1305 SuperClasses.push_back(R);
1308 /// resolveReferences - If there are any field references that refer to fields
1309 /// that have been filled in, we can propagate the values now.
1311 void resolveReferences() { resolveReferencesTo(0); }
1313 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1314 /// reference to RV with the RHS of RV. If RV is null, we resolve all
1315 /// possible references.
1316 void resolveReferencesTo(const RecordVal *RV);
1320 //===--------------------------------------------------------------------===//
1321 // High-level methods useful to tablegen back-ends
1324 /// getValueInit - Return the initializer for a value with the specified name,
1325 /// or throw an exception if the field does not exist.
1327 Init *getValueInit(StringRef FieldName) const;
1329 /// getValueAsString - This method looks up the specified field and returns
1330 /// its value as a string, throwing an exception if the field does not exist
1331 /// or if the value is not a string.
1333 std::string getValueAsString(StringRef FieldName) const;
1335 /// getValueAsBitsInit - This method looks up the specified field and returns
1336 /// its value as a BitsInit, throwing an exception if the field does not exist
1337 /// or if the value is not the right type.
1339 BitsInit *getValueAsBitsInit(StringRef FieldName) const;
1341 /// getValueAsListInit - This method looks up the specified field and returns
1342 /// its value as a ListInit, throwing an exception if the field does not exist
1343 /// or if the value is not the right type.
1345 ListInit *getValueAsListInit(StringRef FieldName) const;
1347 /// getValueAsListOfDefs - This method looks up the specified field and
1348 /// returns its value as a vector of records, throwing an exception if the
1349 /// field does not exist or if the value is not the right type.
1351 std::vector<Record*> getValueAsListOfDefs(StringRef FieldName) const;
1353 /// getValueAsListOfInts - This method looks up the specified field and
1354 /// returns its value as a vector of integers, throwing an exception if the
1355 /// field does not exist or if the value is not the right type.
1357 std::vector<int64_t> getValueAsListOfInts(StringRef FieldName) const;
1359 /// getValueAsDef - This method looks up the specified field and returns its
1360 /// value as a Record, throwing an exception if the field does not exist or if
1361 /// the value is not the right type.
1363 Record *getValueAsDef(StringRef FieldName) const;
1365 /// getValueAsBit - This method looks up the specified field and returns its
1366 /// value as a bit, throwing an exception if the field does not exist or if
1367 /// the value is not the right type.
1369 bool getValueAsBit(StringRef FieldName) const;
1371 /// getValueAsInt - This method looks up the specified field and returns its
1372 /// value as an int64_t, throwing an exception if the field does not exist or
1373 /// if the value is not the right type.
1375 int64_t getValueAsInt(StringRef FieldName) const;
1377 /// getValueAsDag - This method looks up the specified field and returns its
1378 /// value as an Dag, throwing an exception if the field does not exist or if
1379 /// the value is not the right type.
1381 DagInit *getValueAsDag(StringRef FieldName) const;
1383 /// getValueAsCode - This method looks up the specified field and returns
1384 /// its value as the string data in a CodeInit, throwing an exception if the
1385 /// field does not exist or if the value is not a code object.
1387 std::string getValueAsCode(StringRef FieldName) const;
1390 raw_ostream &operator<<(raw_ostream &OS, const Record &R);
1393 Record Rec; // Placeholder for template args and Name.
1394 typedef std::vector<Record*> RecordVector;
1395 RecordVector DefPrototypes;
1399 MultiClass(const std::string &Name, SMLoc Loc) : Rec(Name, Loc) {}
1402 class RecordKeeper {
1403 std::map<std::string, Record*> Classes, Defs;
1406 for (std::map<std::string, Record*>::iterator I = Classes.begin(),
1407 E = Classes.end(); I != E; ++I)
1409 for (std::map<std::string, Record*>::iterator I = Defs.begin(),
1410 E = Defs.end(); I != E; ++I)
1414 const std::map<std::string, Record*> &getClasses() const { return Classes; }
1415 const std::map<std::string, Record*> &getDefs() const { return Defs; }
1417 Record *getClass(const std::string &Name) const {
1418 std::map<std::string, Record*>::const_iterator I = Classes.find(Name);
1419 return I == Classes.end() ? 0 : I->second;
1421 Record *getDef(const std::string &Name) const {
1422 std::map<std::string, Record*>::const_iterator I = Defs.find(Name);
1423 return I == Defs.end() ? 0 : I->second;
1425 void addClass(Record *R) {
1426 assert(getClass(R->getName()) == 0 && "Class already exists!");
1427 Classes.insert(std::make_pair(R->getName(), R));
1429 void addDef(Record *R) {
1430 assert(getDef(R->getName()) == 0 && "Def already exists!");
1431 Defs.insert(std::make_pair(R->getName(), R));
1434 /// removeClass - Remove, but do not delete, the specified record.
1436 void removeClass(const std::string &Name) {
1437 assert(Classes.count(Name) && "Class does not exist!");
1438 Classes.erase(Name);
1440 /// removeDef - Remove, but do not delete, the specified record.
1442 void removeDef(const std::string &Name) {
1443 assert(Defs.count(Name) && "Def does not exist!");
1447 //===--------------------------------------------------------------------===//
1448 // High-level helper methods, useful for tablegen backends...
1450 /// getAllDerivedDefinitions - This method returns all concrete definitions
1451 /// that derive from the specified class name. If a class with the specified
1452 /// name does not exist, an exception is thrown.
1453 std::vector<Record*>
1454 getAllDerivedDefinitions(const std::string &ClassName) const;
1460 /// LessRecord - Sorting predicate to sort record pointers by name.
1463 bool operator()(const Record *Rec1, const Record *Rec2) const {
1464 return StringRef(Rec1->getName()).compare_numeric(Rec2->getName()) < 0;
1468 /// LessRecordFieldName - Sorting predicate to sort record pointers by their
1471 struct LessRecordFieldName {
1472 bool operator()(const Record *Rec1, const Record *Rec2) const {
1473 return Rec1->getValueAsString("Name") < Rec2->getValueAsString("Name");
1480 std::string Message;
1482 TGError(SMLoc loc, const std::string &message) : Loc(loc), Message(message) {}
1484 SMLoc getLoc() const { return Loc; }
1485 const std::string &getMessage() const { return Message; }
1489 raw_ostream &operator<<(raw_ostream &OS, const RecordKeeper &RK);
1491 extern RecordKeeper Records;
1493 void PrintError(SMLoc ErrorLoc, const Twine &Msg);
1495 } // End llvm namespace