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 /// resolveBitReference - This method is used to implement
539 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
540 /// simply return the resolved value, otherwise we return null.
542 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
545 /// resolveListElementReference - This method is used to implement
546 /// VarListElementInit::resolveReferences. If the list element is resolvable
547 /// now, we return the resolved value, otherwise we return null.
548 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
553 /// UnsetInit - ? - Represents an uninitialized value
555 class UnsetInit : public Init {
557 virtual Init *convertInitializerTo(RecTy *Ty) {
558 return Ty->convertValue(this);
561 virtual bool isComplete() const { return false; }
562 virtual std::string getAsString() const { return "?"; }
566 /// BitInit - true/false - Represent a concrete initializer for a bit.
568 class BitInit : public Init {
571 explicit BitInit(bool V) : Value(V) {}
573 bool getValue() const { return Value; }
575 virtual Init *convertInitializerTo(RecTy *Ty) {
576 return Ty->convertValue(this);
579 virtual std::string getAsString() const { return Value ? "1" : "0"; }
582 /// BitsInit - { a, b, c } - Represents an initializer for a BitsRecTy value.
583 /// It contains a vector of bits, whose size is determined by the type.
585 class BitsInit : public Init {
586 std::vector<Init*> Bits;
588 explicit BitsInit(unsigned Size) : Bits(Size) {}
590 unsigned getNumBits() const { return Bits.size(); }
592 Init *getBit(unsigned Bit) const {
593 assert(Bit < Bits.size() && "Bit index out of range!");
596 void setBit(unsigned Bit, Init *V) {
597 assert(Bit < Bits.size() && "Bit index out of range!");
598 assert(Bits[Bit] == 0 && "Bit already set!");
602 virtual Init *convertInitializerTo(RecTy *Ty) {
603 return Ty->convertValue(this);
605 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
607 virtual bool isComplete() const {
608 for (unsigned i = 0; i != getNumBits(); ++i)
609 if (!getBit(i)->isComplete()) return false;
612 virtual std::string getAsString() const;
614 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
618 /// IntInit - 7 - Represent an initalization by a literal integer value.
620 class IntInit : public TypedInit {
623 explicit IntInit(int64_t V) : TypedInit(new IntRecTy), Value(V) {}
625 int64_t getValue() const { return Value; }
627 virtual Init *convertInitializerTo(RecTy *Ty) {
628 return Ty->convertValue(this);
630 virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
632 virtual std::string getAsString() const;
634 /// resolveBitReference - This method is used to implement
635 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
636 /// simply return the resolved value, otherwise we return null.
638 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
640 assert(0 && "Illegal bit reference off int");
644 /// resolveListElementReference - This method is used to implement
645 /// VarListElementInit::resolveReferences. If the list element is resolvable
646 /// now, we return the resolved value, otherwise we return null.
647 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
649 assert(0 && "Illegal element reference off int");
655 /// StringInit - "foo" - Represent an initialization by a string value.
657 class StringInit : public TypedInit {
660 explicit StringInit(const std::string &V)
661 : TypedInit(new StringRecTy), Value(V) {}
663 const std::string &getValue() const { return Value; }
665 virtual Init *convertInitializerTo(RecTy *Ty) {
666 return Ty->convertValue(this);
669 virtual std::string getAsString() const { return "\"" + Value + "\""; }
671 /// resolveBitReference - This method is used to implement
672 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
673 /// simply return the resolved value, otherwise we return null.
675 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
677 assert(0 && "Illegal bit reference off string");
681 /// resolveListElementReference - This method is used to implement
682 /// VarListElementInit::resolveReferences. If the list element is resolvable
683 /// now, we return the resolved value, otherwise we return null.
684 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
686 assert(0 && "Illegal element reference off string");
691 /// CodeInit - "[{...}]" - Represent a code fragment.
693 class CodeInit : public Init {
696 explicit CodeInit(const std::string &V) : Value(V) {}
698 const std::string getValue() const { return Value; }
700 virtual Init *convertInitializerTo(RecTy *Ty) {
701 return Ty->convertValue(this);
704 virtual std::string getAsString() const { return "[{" + Value + "}]"; }
707 /// ListInit - [AL, AH, CL] - Represent a list of defs
709 class ListInit : public TypedInit {
710 std::vector<Init*> Values;
712 typedef std::vector<Init*>::iterator iterator;
713 typedef std::vector<Init*>::const_iterator const_iterator;
715 explicit ListInit(std::vector<Init*> &Vs, RecTy *EltTy)
716 : TypedInit(new ListRecTy(EltTy)) {
719 explicit ListInit(iterator Start, iterator End, RecTy *EltTy)
720 : TypedInit(new ListRecTy(EltTy)), Values(Start, End) {}
722 unsigned getSize() const { return Values.size(); }
723 Init *getElement(unsigned i) const {
724 assert(i < Values.size() && "List element index out of range!");
728 Record *getElementAsRecord(unsigned i) const;
730 Init *convertInitListSlice(const std::vector<unsigned> &Elements);
732 virtual Init *convertInitializerTo(RecTy *Ty) {
733 return Ty->convertValue(this);
736 /// resolveReferences - This method is used by classes that refer to other
737 /// variables which may not be defined at the time they expression is formed.
738 /// If a value is set for the variable later, this method will be called on
739 /// users of the value to allow the value to propagate out.
741 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
743 virtual std::string getAsString() const;
745 inline iterator begin() { return Values.begin(); }
746 inline const_iterator begin() const { return Values.begin(); }
747 inline iterator end () { return Values.end(); }
748 inline const_iterator end () const { return Values.end(); }
750 inline size_t size () const { return Values.size(); }
751 inline bool empty() const { return Values.empty(); }
753 /// resolveBitReference - This method is used to implement
754 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
755 /// simply return the resolved value, otherwise we return null.
757 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
759 assert(0 && "Illegal bit reference off list");
763 /// resolveListElementReference - This method is used to implement
764 /// VarListElementInit::resolveReferences. If the list element is resolvable
765 /// now, we return the resolved value, otherwise we return null.
766 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
771 /// OpInit - Base class for operators
773 class OpInit : public TypedInit {
775 OpInit(RecTy *Type) : TypedInit(Type) {}
777 // Clone - Clone this operator, replacing arguments with the new list
778 virtual OpInit *clone(std::vector<Init *> &Operands) = 0;
780 virtual int getNumOperands() const = 0;
781 virtual Init *getOperand(int i) = 0;
783 // Fold - If possible, fold this to a simpler init. Return this if not
785 virtual Init *Fold(Record *CurRec, MultiClass *CurMultiClass) = 0;
787 virtual Init *convertInitializerTo(RecTy *Ty) {
788 return Ty->convertValue(this);
791 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
793 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
798 /// UnOpInit - !op (X) - Transform an init.
800 class UnOpInit : public OpInit {
802 enum UnaryOp { CAST, CAR, CDR, LNULL };
807 UnOpInit(UnaryOp opc, Init *lhs, RecTy *Type) :
808 OpInit(Type), Opc(opc), LHS(lhs) {
811 // Clone - Clone this operator, replacing arguments with the new list
812 virtual OpInit *clone(std::vector<Init *> &Operands) {
813 assert(Operands.size() == 1 &&
814 "Wrong number of operands for unary operation");
815 return new UnOpInit(getOpcode(), *Operands.begin(), getType());
818 int getNumOperands() const { return 1; }
819 Init *getOperand(int i) {
820 assert(i == 0 && "Invalid operand id for unary operator");
824 UnaryOp getOpcode() const { return Opc; }
825 Init *getOperand() const { return LHS; }
827 // Fold - If possible, fold this to a simpler init. Return this if not
829 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
831 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
833 /// getFieldType - This method is used to implement the FieldInit class.
834 /// Implementors of this method should return the type of the named field if
835 /// they are of record type.
837 virtual RecTy *getFieldType(const std::string &FieldName) const;
839 virtual std::string getAsString() const;
842 /// BinOpInit - !op (X, Y) - Combine two inits.
844 class BinOpInit : public OpInit {
846 enum BinaryOp { SHL, SRA, SRL, STRCONCAT, CONCAT, NAMECONCAT, EQ };
851 BinOpInit(BinaryOp opc, Init *lhs, Init *rhs, RecTy *Type) :
852 OpInit(Type), Opc(opc), LHS(lhs), RHS(rhs) {
855 // Clone - Clone this operator, replacing arguments with the new list
856 virtual OpInit *clone(std::vector<Init *> &Operands) {
857 assert(Operands.size() == 2 &&
858 "Wrong number of operands for binary operation");
859 return new BinOpInit(getOpcode(), Operands[0], Operands[1], getType());
862 int getNumOperands() const { return 2; }
863 Init *getOperand(int i) {
864 assert((i == 0 || i == 1) && "Invalid operand id for binary operator");
872 BinaryOp getOpcode() const { return Opc; }
873 Init *getLHS() const { return LHS; }
874 Init *getRHS() const { return RHS; }
876 // Fold - If possible, fold this to a simpler init. Return this if not
878 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
880 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
882 virtual std::string getAsString() const;
885 /// TernOpInit - !op (X, Y, Z) - Combine two inits.
887 class TernOpInit : public OpInit {
889 enum TernaryOp { SUBST, FOREACH, IF };
892 Init *LHS, *MHS, *RHS;
894 TernOpInit(TernaryOp opc, Init *lhs, Init *mhs, Init *rhs, RecTy *Type) :
895 OpInit(Type), Opc(opc), LHS(lhs), MHS(mhs), RHS(rhs) {
898 // Clone - Clone this operator, replacing arguments with the new list
899 virtual OpInit *clone(std::vector<Init *> &Operands) {
900 assert(Operands.size() == 3 &&
901 "Wrong number of operands for ternary operation");
902 return new TernOpInit(getOpcode(), Operands[0], Operands[1], Operands[2],
906 int getNumOperands() const { return 3; }
907 Init *getOperand(int i) {
908 assert((i == 0 || i == 1 || i == 2) &&
909 "Invalid operand id for ternary operator");
919 TernaryOp getOpcode() const { return Opc; }
920 Init *getLHS() const { return LHS; }
921 Init *getMHS() const { return MHS; }
922 Init *getRHS() const { return RHS; }
924 // Fold - If possible, fold this to a simpler init. Return this if not
926 Init *Fold(Record *CurRec, MultiClass *CurMultiClass);
928 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
930 virtual std::string getAsString() const;
934 /// VarInit - 'Opcode' - Represent a reference to an entire variable object.
936 class VarInit : public TypedInit {
939 explicit VarInit(const std::string &VN, RecTy *T)
940 : TypedInit(T), VarName(VN) {}
942 virtual Init *convertInitializerTo(RecTy *Ty) {
943 return Ty->convertValue(this);
946 const std::string &getName() const { return VarName; }
948 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
950 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
953 virtual RecTy *getFieldType(const std::string &FieldName) const;
954 virtual Init *getFieldInit(Record &R, const RecordVal *RV,
955 const std::string &FieldName) const;
957 /// resolveReferences - This method is used by classes that refer to other
958 /// variables which may not be defined at the time they expression is formed.
959 /// If a value is set for the variable later, this method will be called on
960 /// users of the value to allow the value to propagate out.
962 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
964 virtual std::string getAsString() const { return VarName; }
968 /// VarBitInit - Opcode{0} - Represent access to one bit of a variable or field.
970 class VarBitInit : public Init {
974 VarBitInit(TypedInit *T, unsigned B) : TI(T), Bit(B) {
975 assert(T->getType() && dynamic_cast<BitsRecTy*>(T->getType()) &&
976 ((BitsRecTy*)T->getType())->getNumBits() > B &&
977 "Illegal VarBitInit expression!");
980 virtual Init *convertInitializerTo(RecTy *Ty) {
981 return Ty->convertValue(this);
984 TypedInit *getVariable() const { return TI; }
985 unsigned getBitNum() const { return Bit; }
987 virtual std::string getAsString() const;
988 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
991 /// VarListElementInit - List[4] - Represent access to one element of a var or
993 class VarListElementInit : public TypedInit {
997 VarListElementInit(TypedInit *T, unsigned E)
998 : TypedInit(dynamic_cast<ListRecTy*>(T->getType())->getElementType()),
1000 assert(T->getType() && dynamic_cast<ListRecTy*>(T->getType()) &&
1001 "Illegal VarBitInit expression!");
1004 virtual Init *convertInitializerTo(RecTy *Ty) {
1005 return Ty->convertValue(this);
1008 TypedInit *getVariable() const { return TI; }
1009 unsigned getElementNum() const { return Element; }
1011 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1014 /// resolveListElementReference - This method is used to implement
1015 /// VarListElementInit::resolveReferences. If the list element is resolvable
1016 /// now, we return the resolved value, otherwise we return null.
1017 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1020 virtual std::string getAsString() const;
1021 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1024 /// DefInit - AL - Represent a reference to a 'def' in the description
1026 class DefInit : public TypedInit {
1029 explicit DefInit(Record *D) : TypedInit(new RecordRecTy(D)), Def(D) {}
1031 virtual Init *convertInitializerTo(RecTy *Ty) {
1032 return Ty->convertValue(this);
1035 Record *getDef() const { return Def; }
1037 //virtual Init *convertInitializerBitRange(const std::vector<unsigned> &Bits);
1039 virtual RecTy *getFieldType(const std::string &FieldName) const;
1040 virtual Init *getFieldInit(Record &R, const RecordVal *RV,
1041 const std::string &FieldName) const;
1043 virtual std::string getAsString() const;
1045 /// resolveBitReference - This method is used to implement
1046 /// VarBitInit::resolveReferences. If the bit is able to be resolved, we
1047 /// simply return the resolved value, otherwise we return null.
1049 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1051 assert(0 && "Illegal bit reference off def");
1055 /// resolveListElementReference - This method is used to implement
1056 /// VarListElementInit::resolveReferences. If the list element is resolvable
1057 /// now, we return the resolved value, otherwise we return null.
1058 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1060 assert(0 && "Illegal element reference off def");
1066 /// FieldInit - X.Y - Represent a reference to a subfield of a variable
1068 class FieldInit : public TypedInit {
1069 Init *Rec; // Record we are referring to
1070 std::string FieldName; // Field we are accessing
1072 FieldInit(Init *R, const std::string &FN)
1073 : TypedInit(R->getFieldType(FN)), Rec(R), FieldName(FN) {
1074 assert(getType() && "FieldInit with non-record type!");
1077 virtual Init *convertInitializerTo(RecTy *Ty) {
1078 return Ty->convertValue(this);
1081 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1083 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1086 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1088 virtual std::string getAsString() const {
1089 return Rec->getAsString() + "." + FieldName;
1093 /// DagInit - (v a, b) - Represent a DAG tree value. DAG inits are required
1094 /// to have at least one value then a (possibly empty) list of arguments. Each
1095 /// argument can have a name associated with it.
1097 class DagInit : public TypedInit {
1099 std::string ValName;
1100 std::vector<Init*> Args;
1101 std::vector<std::string> ArgNames;
1103 DagInit(Init *V, std::string VN,
1104 const std::vector<std::pair<Init*, std::string> > &args)
1105 : TypedInit(new DagRecTy), Val(V), ValName(VN) {
1106 Args.reserve(args.size());
1107 ArgNames.reserve(args.size());
1108 for (unsigned i = 0, e = args.size(); i != e; ++i) {
1109 Args.push_back(args[i].first);
1110 ArgNames.push_back(args[i].second);
1113 DagInit(Init *V, std::string VN, const std::vector<Init*> &args,
1114 const std::vector<std::string> &argNames)
1115 : TypedInit(new DagRecTy), Val(V), ValName(VN), Args(args),
1116 ArgNames(argNames) { }
1118 virtual Init *convertInitializerTo(RecTy *Ty) {
1119 return Ty->convertValue(this);
1122 Init *getOperator() const { return Val; }
1124 const std::string &getName() const { return ValName; }
1126 unsigned getNumArgs() const { return Args.size(); }
1127 Init *getArg(unsigned Num) const {
1128 assert(Num < Args.size() && "Arg number out of range!");
1131 const std::string &getArgName(unsigned Num) const {
1132 assert(Num < ArgNames.size() && "Arg number out of range!");
1133 return ArgNames[Num];
1136 void setArg(unsigned Num, Init *I) {
1137 assert(Num < Args.size() && "Arg number out of range!");
1141 virtual Init *resolveReferences(Record &R, const RecordVal *RV);
1143 virtual std::string getAsString() const;
1145 typedef std::vector<Init*>::iterator arg_iterator;
1146 typedef std::vector<Init*>::const_iterator const_arg_iterator;
1147 typedef std::vector<std::string>::iterator name_iterator;
1148 typedef std::vector<std::string>::const_iterator const_name_iterator;
1150 inline arg_iterator arg_begin() { return Args.begin(); }
1151 inline const_arg_iterator arg_begin() const { return Args.begin(); }
1152 inline arg_iterator arg_end () { return Args.end(); }
1153 inline const_arg_iterator arg_end () const { return Args.end(); }
1155 inline size_t arg_size () const { return Args.size(); }
1156 inline bool arg_empty() const { return Args.empty(); }
1158 inline name_iterator name_begin() { return ArgNames.begin(); }
1159 inline const_name_iterator name_begin() const { return ArgNames.begin(); }
1160 inline name_iterator name_end () { return ArgNames.end(); }
1161 inline const_name_iterator name_end () const { return ArgNames.end(); }
1163 inline size_t name_size () const { return ArgNames.size(); }
1164 inline bool name_empty() const { return ArgNames.empty(); }
1166 virtual Init *resolveBitReference(Record &R, const RecordVal *RV,
1168 assert(0 && "Illegal bit reference off dag");
1172 virtual Init *resolveListElementReference(Record &R, const RecordVal *RV,
1174 assert(0 && "Illegal element reference off dag");
1179 //===----------------------------------------------------------------------===//
1180 // High-Level Classes
1181 //===----------------------------------------------------------------------===//
1189 RecordVal(const std::string &N, RecTy *T, unsigned P);
1191 const std::string &getName() const { return Name; }
1193 unsigned getPrefix() const { return Prefix; }
1194 RecTy *getType() const { return Ty; }
1195 Init *getValue() const { return Value; }
1197 bool setValue(Init *V) {
1199 Value = V->convertInitializerTo(Ty);
1207 void print(raw_ostream &OS, bool PrintSem = true) const;
1210 inline raw_ostream &operator<<(raw_ostream &OS, const RecordVal &RV) {
1211 RV.print(OS << " ");
1216 static unsigned LastID;
1218 // Unique record ID.
1222 std::vector<std::string> TemplateArgs;
1223 std::vector<RecordVal> Values;
1224 std::vector<Record*> SuperClasses;
1227 explicit Record(const std::string &N, SMLoc loc) :
1228 ID(LastID++), Name(N), Loc(loc) {}
1232 static unsigned getNewUID() { return LastID++; }
1235 unsigned getID() const { return ID; }
1237 const std::string &getName() const { return Name; }
1238 void setName(const std::string &Name); // Also updates RecordKeeper.
1240 SMLoc getLoc() const { return Loc; }
1242 const std::vector<std::string> &getTemplateArgs() const {
1243 return TemplateArgs;
1245 const std::vector<RecordVal> &getValues() const { return Values; }
1246 const std::vector<Record*> &getSuperClasses() const { return SuperClasses; }
1248 bool isTemplateArg(StringRef Name) const {
1249 for (unsigned i = 0, e = TemplateArgs.size(); i != e; ++i)
1250 if (TemplateArgs[i] == Name) return true;
1254 const RecordVal *getValue(StringRef Name) const {
1255 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1256 if (Values[i].getName() == Name) return &Values[i];
1259 RecordVal *getValue(StringRef Name) {
1260 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1261 if (Values[i].getName() == Name) return &Values[i];
1265 // Like getValue, but allow dotting into members: X.Y
1266 RecordVal *getDottedValue(StringRef Name);
1268 void addTemplateArg(StringRef Name) {
1269 assert(!isTemplateArg(Name) && "Template arg already defined!");
1270 TemplateArgs.push_back(Name);
1273 void addValue(const RecordVal &RV) {
1274 assert(getValue(RV.getName()) == 0 && "Value already added!");
1275 Values.push_back(RV);
1278 void removeValue(StringRef Name) {
1279 for (unsigned i = 0, e = Values.size(); i != e; ++i)
1280 if (Values[i].getName() == Name) {
1281 Values.erase(Values.begin()+i);
1284 assert(0 && "Cannot remove an entry that does not exist!");
1287 bool isSubClassOf(const Record *R) const {
1288 for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
1289 if (SuperClasses[i] == R)
1294 bool isSubClassOf(StringRef Name) const {
1295 for (unsigned i = 0, e = SuperClasses.size(); i != e; ++i)
1296 if (SuperClasses[i]->getName() == Name)
1301 void addSuperClass(Record *R) {
1302 assert(!isSubClassOf(R) && "Already subclassing record!");
1303 SuperClasses.push_back(R);
1306 /// resolveReferences - If there are any field references that refer to fields
1307 /// that have been filled in, we can propagate the values now.
1309 void resolveReferences() { resolveReferencesTo(0); }
1311 /// resolveReferencesTo - If anything in this record refers to RV, replace the
1312 /// reference to RV with the RHS of RV. If RV is null, we resolve all
1313 /// possible references.
1314 void resolveReferencesTo(const RecordVal *RV);
1318 //===--------------------------------------------------------------------===//
1319 // High-level methods useful to tablegen back-ends
1322 /// getValueInit - Return the initializer for a value with the specified name,
1323 /// or throw an exception if the field does not exist.
1325 Init *getValueInit(StringRef FieldName) const;
1327 /// getValueAsString - This method looks up the specified field and returns
1328 /// its value as a string, throwing an exception if the field does not exist
1329 /// or if the value is not a string.
1331 std::string getValueAsString(StringRef FieldName) const;
1333 /// getValueAsBitsInit - This method looks up the specified field and returns
1334 /// its value as a BitsInit, throwing an exception if the field does not exist
1335 /// or if the value is not the right type.
1337 BitsInit *getValueAsBitsInit(StringRef FieldName) const;
1339 /// getValueAsListInit - This method looks up the specified field and returns
1340 /// its value as a ListInit, throwing an exception if the field does not exist
1341 /// or if the value is not the right type.
1343 ListInit *getValueAsListInit(StringRef FieldName) const;
1345 /// getValueAsListOfDefs - This method looks up the specified field and
1346 /// returns its value as a vector of records, throwing an exception if the
1347 /// field does not exist or if the value is not the right type.
1349 std::vector<Record*> getValueAsListOfDefs(StringRef FieldName) const;
1351 /// getValueAsListOfInts - This method looks up the specified field and returns
1352 /// its value as a vector of integers, throwing an exception if the field does
1353 /// not exist or if the value is not the right type.
1355 std::vector<int64_t> getValueAsListOfInts(StringRef FieldName) const;
1357 /// getValueAsDef - This method looks up the specified field and returns its
1358 /// value as a Record, throwing an exception if the field does not exist or if
1359 /// the value is not the right type.
1361 Record *getValueAsDef(StringRef FieldName) const;
1363 /// getValueAsBit - This method looks up the specified field and returns its
1364 /// value as a bit, throwing an exception if the field does not exist or if
1365 /// the value is not the right type.
1367 bool getValueAsBit(StringRef FieldName) const;
1369 /// getValueAsInt - This method looks up the specified field and returns its
1370 /// value as an int64_t, throwing an exception if the field does not exist or
1371 /// if the value is not the right type.
1373 int64_t getValueAsInt(StringRef FieldName) const;
1375 /// getValueAsDag - This method looks up the specified field and returns its
1376 /// value as an Dag, throwing an exception if the field does not exist or if
1377 /// the value is not the right type.
1379 DagInit *getValueAsDag(StringRef FieldName) const;
1381 /// getValueAsCode - This method looks up the specified field and returns
1382 /// its value as the string data in a CodeInit, throwing an exception if the
1383 /// field does not exist or if the value is not a code object.
1385 std::string getValueAsCode(StringRef FieldName) const;
1388 raw_ostream &operator<<(raw_ostream &OS, const Record &R);
1391 Record Rec; // Placeholder for template args and Name.
1392 typedef std::vector<Record*> RecordVector;
1393 RecordVector DefPrototypes;
1397 MultiClass(const std::string &Name, SMLoc Loc) : Rec(Name, Loc) {}
1400 class RecordKeeper {
1401 std::map<std::string, Record*> Classes, Defs;
1404 for (std::map<std::string, Record*>::iterator I = Classes.begin(),
1405 E = Classes.end(); I != E; ++I)
1407 for (std::map<std::string, Record*>::iterator I = Defs.begin(),
1408 E = Defs.end(); I != E; ++I)
1412 const std::map<std::string, Record*> &getClasses() const { return Classes; }
1413 const std::map<std::string, Record*> &getDefs() const { return Defs; }
1415 Record *getClass(const std::string &Name) const {
1416 std::map<std::string, Record*>::const_iterator I = Classes.find(Name);
1417 return I == Classes.end() ? 0 : I->second;
1419 Record *getDef(const std::string &Name) const {
1420 std::map<std::string, Record*>::const_iterator I = Defs.find(Name);
1421 return I == Defs.end() ? 0 : I->second;
1423 void addClass(Record *R) {
1424 assert(getClass(R->getName()) == 0 && "Class already exists!");
1425 Classes.insert(std::make_pair(R->getName(), R));
1427 void addDef(Record *R) {
1428 assert(getDef(R->getName()) == 0 && "Def already exists!");
1429 Defs.insert(std::make_pair(R->getName(), R));
1432 /// removeClass - Remove, but do not delete, the specified record.
1434 void removeClass(const std::string &Name) {
1435 assert(Classes.count(Name) && "Class does not exist!");
1436 Classes.erase(Name);
1438 /// removeDef - Remove, but do not delete, the specified record.
1440 void removeDef(const std::string &Name) {
1441 assert(Defs.count(Name) && "Def does not exist!");
1445 //===--------------------------------------------------------------------===//
1446 // High-level helper methods, useful for tablegen backends...
1448 /// getAllDerivedDefinitions - This method returns all concrete definitions
1449 /// that derive from the specified class name. If a class with the specified
1450 /// name does not exist, an exception is thrown.
1451 std::vector<Record*>
1452 getAllDerivedDefinitions(const std::string &ClassName) const;
1458 /// LessRecord - Sorting predicate to sort record pointers by name.
1461 bool operator()(const Record *Rec1, const Record *Rec2) const {
1462 return Rec1->getName() < Rec2->getName();
1466 /// LessRecordFieldName - Sorting predicate to sort record pointers by their
1469 struct LessRecordFieldName {
1470 bool operator()(const Record *Rec1, const Record *Rec2) const {
1471 return Rec1->getValueAsString("Name") < Rec2->getValueAsString("Name");
1478 std::string Message;
1480 TGError(SMLoc loc, const std::string &message) : Loc(loc), Message(message) {}
1482 SMLoc getLoc() const { return Loc; }
1483 const std::string &getMessage() const { return Message; }
1487 raw_ostream &operator<<(raw_ostream &OS, const RecordKeeper &RK);
1489 extern RecordKeeper Records;
1491 void PrintError(SMLoc ErrorLoc, const std::string &Msg);
1493 } // End llvm namespace