1226584Sdim//===- Record.cpp - Record implementation ---------------------------------===// 2226584Sdim// 3226584Sdim// The LLVM Compiler Infrastructure 4226584Sdim// 5226584Sdim// This file is distributed under the University of Illinois Open Source 6226584Sdim// License. See LICENSE.TXT for details. 7226584Sdim// 8226584Sdim//===----------------------------------------------------------------------===// 9226584Sdim// 10226584Sdim// Implement the tablegen record classes. 11226584Sdim// 12226584Sdim//===----------------------------------------------------------------------===// 13226584Sdim 14226584Sdim#include "llvm/TableGen/Record.h" 15226584Sdim#include "llvm/ADT/DenseMap.h" 16226584Sdim#include "llvm/ADT/FoldingSet.h" 17234353Sdim#include "llvm/ADT/Hashing.h" 18249423Sdim#include "llvm/ADT/STLExtras.h" 19226584Sdim#include "llvm/ADT/SmallVector.h" 20226584Sdim#include "llvm/ADT/StringExtras.h" 21226584Sdim#include "llvm/ADT/StringMap.h" 22249423Sdim#include "llvm/Support/DataTypes.h" 23249423Sdim#include "llvm/Support/ErrorHandling.h" 24249423Sdim#include "llvm/Support/Format.h" 25249423Sdim#include "llvm/TableGen/Error.h" 26226584Sdim 27226584Sdimusing namespace llvm; 28226584Sdim 29226584Sdim//===----------------------------------------------------------------------===// 30226584Sdim// std::string wrapper for DenseMap purposes 31226584Sdim//===----------------------------------------------------------------------===// 32226584Sdim 33234353Sdimnamespace llvm { 34234353Sdim 35226584Sdim/// TableGenStringKey - This is a wrapper for std::string suitable for 36226584Sdim/// using as a key to a DenseMap. Because there isn't a particularly 37226584Sdim/// good way to indicate tombstone or empty keys for strings, we want 38226584Sdim/// to wrap std::string to indicate that this is a "special" string 39226584Sdim/// not expected to take on certain values (those of the tombstone and 40226584Sdim/// empty keys). This makes things a little safer as it clarifies 41226584Sdim/// that DenseMap is really not appropriate for general strings. 42226584Sdim 43226584Sdimclass TableGenStringKey { 44226584Sdimpublic: 45226584Sdim TableGenStringKey(const std::string &str) : data(str) {} 46226584Sdim TableGenStringKey(const char *str) : data(str) {} 47226584Sdim 48226584Sdim const std::string &str() const { return data; } 49234353Sdim 50234353Sdim friend hash_code hash_value(const TableGenStringKey &Value) { 51234353Sdim using llvm::hash_value; 52234353Sdim return hash_value(Value.str()); 53234353Sdim } 54226584Sdimprivate: 55226584Sdim std::string data; 56226584Sdim}; 57226584Sdim 58226584Sdim/// Specialize DenseMapInfo for TableGenStringKey. 59226584Sdimtemplate<> struct DenseMapInfo<TableGenStringKey> { 60226584Sdim static inline TableGenStringKey getEmptyKey() { 61226584Sdim TableGenStringKey Empty("<<<EMPTY KEY>>>"); 62226584Sdim return Empty; 63226584Sdim } 64226584Sdim static inline TableGenStringKey getTombstoneKey() { 65226584Sdim TableGenStringKey Tombstone("<<<TOMBSTONE KEY>>>"); 66226584Sdim return Tombstone; 67226584Sdim } 68226584Sdim static unsigned getHashValue(const TableGenStringKey& Val) { 69234353Sdim using llvm::hash_value; 70234353Sdim return hash_value(Val); 71226584Sdim } 72226584Sdim static bool isEqual(const TableGenStringKey& LHS, 73226584Sdim const TableGenStringKey& RHS) { 74226584Sdim return LHS.str() == RHS.str(); 75226584Sdim } 76226584Sdim}; 77226584Sdim 78234353Sdim} // namespace llvm 79226584Sdim 80226584Sdim//===----------------------------------------------------------------------===// 81226584Sdim// Type implementations 82226584Sdim//===----------------------------------------------------------------------===// 83226584Sdim 84226584SdimBitRecTy BitRecTy::Shared; 85226584SdimIntRecTy IntRecTy::Shared; 86226584SdimStringRecTy StringRecTy::Shared; 87226584SdimDagRecTy DagRecTy::Shared; 88226584Sdim 89234353Sdimvoid RecTy::anchor() { } 90226584Sdimvoid RecTy::dump() const { print(errs()); } 91226584Sdim 92226584SdimListRecTy *RecTy::getListTy() { 93226584Sdim if (!ListTy) 94226584Sdim ListTy = new ListRecTy(this); 95226584Sdim return ListTy; 96226584Sdim} 97226584Sdim 98249423Sdimbool RecTy::baseClassOf(const RecTy *RHS) const{ 99249423Sdim assert (RHS && "NULL pointer"); 100249423Sdim return Kind == RHS->getRecTyKind(); 101249423Sdim} 102249423Sdim 103226584SdimInit *BitRecTy::convertValue(BitsInit *BI) { 104226584Sdim if (BI->getNumBits() != 1) return 0; // Only accept if just one bit! 105226584Sdim return BI->getBit(0); 106226584Sdim} 107226584Sdim 108226584SdimInit *BitRecTy::convertValue(IntInit *II) { 109226584Sdim int64_t Val = II->getValue(); 110226584Sdim if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit! 111226584Sdim 112226584Sdim return BitInit::get(Val != 0); 113226584Sdim} 114226584Sdim 115226584SdimInit *BitRecTy::convertValue(TypedInit *VI) { 116243830Sdim RecTy *Ty = VI->getType(); 117243830Sdim if (isa<BitRecTy>(Ty) || isa<BitsRecTy>(Ty) || isa<IntRecTy>(Ty)) 118226584Sdim return VI; // Accept variable if it is already of bit type! 119226584Sdim return 0; 120226584Sdim} 121226584Sdim 122249423Sdimbool BitRecTy::baseClassOf(const RecTy *RHS) const{ 123249423Sdim if(RecTy::baseClassOf(RHS) || getRecTyKind() == IntRecTyKind) 124249423Sdim return true; 125249423Sdim if(const BitsRecTy *BitsTy = dyn_cast<BitsRecTy>(RHS)) 126249423Sdim return BitsTy->getNumBits() == 1; 127249423Sdim return false; 128249423Sdim} 129249423Sdim 130226584SdimBitsRecTy *BitsRecTy::get(unsigned Sz) { 131226584Sdim static std::vector<BitsRecTy*> Shared; 132226584Sdim if (Sz >= Shared.size()) 133226584Sdim Shared.resize(Sz + 1); 134226584Sdim BitsRecTy *&Ty = Shared[Sz]; 135226584Sdim if (!Ty) 136226584Sdim Ty = new BitsRecTy(Sz); 137226584Sdim return Ty; 138226584Sdim} 139226584Sdim 140226584Sdimstd::string BitsRecTy::getAsString() const { 141226584Sdim return "bits<" + utostr(Size) + ">"; 142226584Sdim} 143226584Sdim 144226584SdimInit *BitsRecTy::convertValue(UnsetInit *UI) { 145226584Sdim SmallVector<Init *, 16> NewBits(Size); 146226584Sdim 147226584Sdim for (unsigned i = 0; i != Size; ++i) 148226584Sdim NewBits[i] = UnsetInit::get(); 149226584Sdim 150226584Sdim return BitsInit::get(NewBits); 151226584Sdim} 152226584Sdim 153226584SdimInit *BitsRecTy::convertValue(BitInit *UI) { 154226584Sdim if (Size != 1) return 0; // Can only convert single bit. 155226584Sdim return BitsInit::get(UI); 156226584Sdim} 157226584Sdim 158226584Sdim/// canFitInBitfield - Return true if the number of bits is large enough to hold 159226584Sdim/// the integer value. 160226584Sdimstatic bool canFitInBitfield(int64_t Value, unsigned NumBits) { 161226584Sdim // For example, with NumBits == 4, we permit Values from [-7 .. 15]. 162226584Sdim return (NumBits >= sizeof(Value) * 8) || 163226584Sdim (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1); 164226584Sdim} 165226584Sdim 166226584Sdim/// convertValue from Int initializer to bits type: Split the integer up into the 167226584Sdim/// appropriate bits. 168226584Sdim/// 169226584SdimInit *BitsRecTy::convertValue(IntInit *II) { 170226584Sdim int64_t Value = II->getValue(); 171226584Sdim // Make sure this bitfield is large enough to hold the integer value. 172226584Sdim if (!canFitInBitfield(Value, Size)) 173226584Sdim return 0; 174226584Sdim 175226584Sdim SmallVector<Init *, 16> NewBits(Size); 176226584Sdim 177226584Sdim for (unsigned i = 0; i != Size; ++i) 178226584Sdim NewBits[i] = BitInit::get(Value & (1LL << i)); 179226584Sdim 180226584Sdim return BitsInit::get(NewBits); 181226584Sdim} 182226584Sdim 183226584SdimInit *BitsRecTy::convertValue(BitsInit *BI) { 184226584Sdim // If the number of bits is right, return it. Otherwise we need to expand or 185226584Sdim // truncate. 186226584Sdim if (BI->getNumBits() == Size) return BI; 187226584Sdim return 0; 188226584Sdim} 189226584Sdim 190226584SdimInit *BitsRecTy::convertValue(TypedInit *VI) { 191243830Sdim if (Size == 1 && isa<BitRecTy>(VI->getType())) 192226584Sdim return BitsInit::get(VI); 193226584Sdim 194243830Sdim if (VI->getType()->typeIsConvertibleTo(this)) { 195243830Sdim SmallVector<Init *, 16> NewBits(Size); 196226584Sdim 197243830Sdim for (unsigned i = 0; i != Size; ++i) 198243830Sdim NewBits[i] = VarBitInit::get(VI, i); 199243830Sdim return BitsInit::get(NewBits); 200226584Sdim } 201226584Sdim 202226584Sdim return 0; 203226584Sdim} 204226584Sdim 205249423Sdimbool BitsRecTy::baseClassOf(const RecTy *RHS) const{ 206249423Sdim if (RecTy::baseClassOf(RHS)) //argument and the receiver are the same type 207249423Sdim return cast<BitsRecTy>(RHS)->Size == Size; 208249423Sdim RecTyKind kind = RHS->getRecTyKind(); 209249423Sdim return (kind == BitRecTyKind && Size == 1) || (kind == IntRecTyKind); 210249423Sdim} 211249423Sdim 212226584SdimInit *IntRecTy::convertValue(BitInit *BI) { 213226584Sdim return IntInit::get(BI->getValue()); 214226584Sdim} 215226584Sdim 216226584SdimInit *IntRecTy::convertValue(BitsInit *BI) { 217226584Sdim int64_t Result = 0; 218226584Sdim for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i) 219243830Sdim if (BitInit *Bit = dyn_cast<BitInit>(BI->getBit(i))) { 220226584Sdim Result |= Bit->getValue() << i; 221226584Sdim } else { 222226584Sdim return 0; 223226584Sdim } 224226584Sdim return IntInit::get(Result); 225226584Sdim} 226226584Sdim 227226584SdimInit *IntRecTy::convertValue(TypedInit *TI) { 228226584Sdim if (TI->getType()->typeIsConvertibleTo(this)) 229226584Sdim return TI; // Accept variable if already of the right type! 230226584Sdim return 0; 231226584Sdim} 232226584Sdim 233249423Sdimbool IntRecTy::baseClassOf(const RecTy *RHS) const{ 234249423Sdim RecTyKind kind = RHS->getRecTyKind(); 235249423Sdim return kind==BitRecTyKind || kind==BitsRecTyKind || kind==IntRecTyKind; 236249423Sdim} 237249423Sdim 238226584SdimInit *StringRecTy::convertValue(UnOpInit *BO) { 239226584Sdim if (BO->getOpcode() == UnOpInit::CAST) { 240226584Sdim Init *L = BO->getOperand()->convertInitializerTo(this); 241226584Sdim if (L == 0) return 0; 242226584Sdim if (L != BO->getOperand()) 243226584Sdim return UnOpInit::get(UnOpInit::CAST, L, new StringRecTy); 244226584Sdim return BO; 245226584Sdim } 246226584Sdim 247226584Sdim return convertValue((TypedInit*)BO); 248226584Sdim} 249226584Sdim 250226584SdimInit *StringRecTy::convertValue(BinOpInit *BO) { 251226584Sdim if (BO->getOpcode() == BinOpInit::STRCONCAT) { 252226584Sdim Init *L = BO->getLHS()->convertInitializerTo(this); 253226584Sdim Init *R = BO->getRHS()->convertInitializerTo(this); 254226584Sdim if (L == 0 || R == 0) return 0; 255226584Sdim if (L != BO->getLHS() || R != BO->getRHS()) 256226584Sdim return BinOpInit::get(BinOpInit::STRCONCAT, L, R, new StringRecTy); 257226584Sdim return BO; 258226584Sdim } 259226584Sdim 260226584Sdim return convertValue((TypedInit*)BO); 261226584Sdim} 262226584Sdim 263226584Sdim 264226584SdimInit *StringRecTy::convertValue(TypedInit *TI) { 265243830Sdim if (isa<StringRecTy>(TI->getType())) 266226584Sdim return TI; // Accept variable if already of the right type! 267226584Sdim return 0; 268226584Sdim} 269226584Sdim 270226584Sdimstd::string ListRecTy::getAsString() const { 271226584Sdim return "list<" + Ty->getAsString() + ">"; 272226584Sdim} 273226584Sdim 274226584SdimInit *ListRecTy::convertValue(ListInit *LI) { 275226584Sdim std::vector<Init*> Elements; 276226584Sdim 277226584Sdim // Verify that all of the elements of the list are subclasses of the 278226584Sdim // appropriate class! 279226584Sdim for (unsigned i = 0, e = LI->getSize(); i != e; ++i) 280226584Sdim if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty)) 281226584Sdim Elements.push_back(CI); 282226584Sdim else 283226584Sdim return 0; 284226584Sdim 285243830Sdim if (!isa<ListRecTy>(LI->getType())) 286226584Sdim return 0; 287226584Sdim 288226584Sdim return ListInit::get(Elements, this); 289226584Sdim} 290226584Sdim 291226584SdimInit *ListRecTy::convertValue(TypedInit *TI) { 292226584Sdim // Ensure that TI is compatible with our class. 293243830Sdim if (ListRecTy *LRT = dyn_cast<ListRecTy>(TI->getType())) 294226584Sdim if (LRT->getElementType()->typeIsConvertibleTo(getElementType())) 295226584Sdim return TI; 296226584Sdim return 0; 297226584Sdim} 298226584Sdim 299249423Sdimbool ListRecTy::baseClassOf(const RecTy *RHS) const{ 300249423Sdim if(const ListRecTy* ListTy = dyn_cast<ListRecTy>(RHS)) 301249423Sdim return ListTy->getElementType()->typeIsConvertibleTo(Ty); 302249423Sdim return false; 303249423Sdim} 304249423Sdim 305226584SdimInit *DagRecTy::convertValue(TypedInit *TI) { 306226584Sdim if (TI->getType()->typeIsConvertibleTo(this)) 307226584Sdim return TI; 308226584Sdim return 0; 309226584Sdim} 310226584Sdim 311226584SdimInit *DagRecTy::convertValue(UnOpInit *BO) { 312226584Sdim if (BO->getOpcode() == UnOpInit::CAST) { 313226584Sdim Init *L = BO->getOperand()->convertInitializerTo(this); 314226584Sdim if (L == 0) return 0; 315226584Sdim if (L != BO->getOperand()) 316226584Sdim return UnOpInit::get(UnOpInit::CAST, L, new DagRecTy); 317226584Sdim return BO; 318226584Sdim } 319226584Sdim return 0; 320226584Sdim} 321226584Sdim 322226584SdimInit *DagRecTy::convertValue(BinOpInit *BO) { 323226584Sdim if (BO->getOpcode() == BinOpInit::CONCAT) { 324226584Sdim Init *L = BO->getLHS()->convertInitializerTo(this); 325226584Sdim Init *R = BO->getRHS()->convertInitializerTo(this); 326226584Sdim if (L == 0 || R == 0) return 0; 327226584Sdim if (L != BO->getLHS() || R != BO->getRHS()) 328226584Sdim return BinOpInit::get(BinOpInit::CONCAT, L, R, new DagRecTy); 329226584Sdim return BO; 330226584Sdim } 331226584Sdim return 0; 332226584Sdim} 333226584Sdim 334226584SdimRecordRecTy *RecordRecTy::get(Record *R) { 335243830Sdim return dyn_cast<RecordRecTy>(R->getDefInit()->getType()); 336226584Sdim} 337226584Sdim 338226584Sdimstd::string RecordRecTy::getAsString() const { 339226584Sdim return Rec->getName(); 340226584Sdim} 341226584Sdim 342226584SdimInit *RecordRecTy::convertValue(DefInit *DI) { 343226584Sdim // Ensure that DI is a subclass of Rec. 344226584Sdim if (!DI->getDef()->isSubClassOf(Rec)) 345226584Sdim return 0; 346226584Sdim return DI; 347226584Sdim} 348226584Sdim 349226584SdimInit *RecordRecTy::convertValue(TypedInit *TI) { 350226584Sdim // Ensure that TI is compatible with Rec. 351243830Sdim if (RecordRecTy *RRT = dyn_cast<RecordRecTy>(TI->getType())) 352226584Sdim if (RRT->getRecord()->isSubClassOf(getRecord()) || 353226584Sdim RRT->getRecord() == getRecord()) 354226584Sdim return TI; 355226584Sdim return 0; 356226584Sdim} 357226584Sdim 358249423Sdimbool RecordRecTy::baseClassOf(const RecTy *RHS) const{ 359249423Sdim const RecordRecTy *RTy = dyn_cast<RecordRecTy>(RHS); 360249423Sdim if (!RTy) 361249423Sdim return false; 362249423Sdim 363249423Sdim if (Rec == RTy->getRecord() || RTy->getRecord()->isSubClassOf(Rec)) 364226584Sdim return true; 365226584Sdim 366226584Sdim const std::vector<Record*> &SC = Rec->getSuperClasses(); 367226584Sdim for (unsigned i = 0, e = SC.size(); i != e; ++i) 368249423Sdim if (RTy->getRecord()->isSubClassOf(SC[i])) 369226584Sdim return true; 370226584Sdim 371226584Sdim return false; 372226584Sdim} 373226584Sdim 374226584Sdim/// resolveTypes - Find a common type that T1 and T2 convert to. 375226584Sdim/// Return 0 if no such type exists. 376226584Sdim/// 377226584SdimRecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) { 378243830Sdim if (T1->typeIsConvertibleTo(T2)) 379243830Sdim return T2; 380243830Sdim if (T2->typeIsConvertibleTo(T1)) 381243830Sdim return T1; 382243830Sdim 383243830Sdim // If one is a Record type, check superclasses 384243830Sdim if (RecordRecTy *RecTy1 = dyn_cast<RecordRecTy>(T1)) { 385243830Sdim // See if T2 inherits from a type T1 also inherits from 386243830Sdim const std::vector<Record *> &T1SuperClasses = 387243830Sdim RecTy1->getRecord()->getSuperClasses(); 388243830Sdim for(std::vector<Record *>::const_iterator i = T1SuperClasses.begin(), 389243830Sdim iend = T1SuperClasses.end(); 390243830Sdim i != iend; 391243830Sdim ++i) { 392243830Sdim RecordRecTy *SuperRecTy1 = RecordRecTy::get(*i); 393243830Sdim RecTy *NewType1 = resolveTypes(SuperRecTy1, T2); 394243830Sdim if (NewType1 != 0) { 395243830Sdim if (NewType1 != SuperRecTy1) { 396243830Sdim delete SuperRecTy1; 397226584Sdim } 398243830Sdim return NewType1; 399226584Sdim } 400243830Sdim } 401243830Sdim } 402243830Sdim if (RecordRecTy *RecTy2 = dyn_cast<RecordRecTy>(T2)) { 403243830Sdim // See if T1 inherits from a type T2 also inherits from 404243830Sdim const std::vector<Record *> &T2SuperClasses = 405243830Sdim RecTy2->getRecord()->getSuperClasses(); 406243830Sdim for (std::vector<Record *>::const_iterator i = T2SuperClasses.begin(), 407243830Sdim iend = T2SuperClasses.end(); 408243830Sdim i != iend; 409243830Sdim ++i) { 410243830Sdim RecordRecTy *SuperRecTy2 = RecordRecTy::get(*i); 411243830Sdim RecTy *NewType2 = resolveTypes(T1, SuperRecTy2); 412243830Sdim if (NewType2 != 0) { 413243830Sdim if (NewType2 != SuperRecTy2) { 414243830Sdim delete SuperRecTy2; 415226584Sdim } 416243830Sdim return NewType2; 417226584Sdim } 418226584Sdim } 419226584Sdim } 420243830Sdim return 0; 421226584Sdim} 422226584Sdim 423226584Sdim 424226584Sdim//===----------------------------------------------------------------------===// 425226584Sdim// Initializer implementations 426226584Sdim//===----------------------------------------------------------------------===// 427226584Sdim 428234353Sdimvoid Init::anchor() { } 429226584Sdimvoid Init::dump() const { return print(errs()); } 430226584Sdim 431234353Sdimvoid UnsetInit::anchor() { } 432234353Sdim 433226584SdimUnsetInit *UnsetInit::get() { 434226584Sdim static UnsetInit TheInit; 435226584Sdim return &TheInit; 436226584Sdim} 437226584Sdim 438234353Sdimvoid BitInit::anchor() { } 439234353Sdim 440226584SdimBitInit *BitInit::get(bool V) { 441226584Sdim static BitInit True(true); 442226584Sdim static BitInit False(false); 443226584Sdim 444226584Sdim return V ? &True : &False; 445226584Sdim} 446226584Sdim 447226584Sdimstatic void 448226584SdimProfileBitsInit(FoldingSetNodeID &ID, ArrayRef<Init *> Range) { 449226584Sdim ID.AddInteger(Range.size()); 450226584Sdim 451226584Sdim for (ArrayRef<Init *>::iterator i = Range.begin(), 452226584Sdim iend = Range.end(); 453226584Sdim i != iend; 454226584Sdim ++i) 455226584Sdim ID.AddPointer(*i); 456226584Sdim} 457226584Sdim 458226584SdimBitsInit *BitsInit::get(ArrayRef<Init *> Range) { 459226584Sdim typedef FoldingSet<BitsInit> Pool; 460226584Sdim static Pool ThePool; 461226584Sdim 462226584Sdim FoldingSetNodeID ID; 463226584Sdim ProfileBitsInit(ID, Range); 464226584Sdim 465226584Sdim void *IP = 0; 466226584Sdim if (BitsInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) 467226584Sdim return I; 468226584Sdim 469226584Sdim BitsInit *I = new BitsInit(Range); 470226584Sdim ThePool.InsertNode(I, IP); 471226584Sdim 472226584Sdim return I; 473226584Sdim} 474226584Sdim 475226584Sdimvoid BitsInit::Profile(FoldingSetNodeID &ID) const { 476226584Sdim ProfileBitsInit(ID, Bits); 477226584Sdim} 478226584Sdim 479226584SdimInit * 480226584SdimBitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const { 481226584Sdim SmallVector<Init *, 16> NewBits(Bits.size()); 482226584Sdim 483226584Sdim for (unsigned i = 0, e = Bits.size(); i != e; ++i) { 484226584Sdim if (Bits[i] >= getNumBits()) 485226584Sdim return 0; 486226584Sdim NewBits[i] = getBit(Bits[i]); 487226584Sdim } 488226584Sdim return BitsInit::get(NewBits); 489226584Sdim} 490226584Sdim 491226584Sdimstd::string BitsInit::getAsString() const { 492226584Sdim std::string Result = "{ "; 493226584Sdim for (unsigned i = 0, e = getNumBits(); i != e; ++i) { 494226584Sdim if (i) Result += ", "; 495226584Sdim if (Init *Bit = getBit(e-i-1)) 496226584Sdim Result += Bit->getAsString(); 497226584Sdim else 498226584Sdim Result += "*"; 499226584Sdim } 500226584Sdim return Result + " }"; 501226584Sdim} 502226584Sdim 503243830Sdim// Fix bit initializer to preserve the behavior that bit reference from a unset 504243830Sdim// bits initializer will resolve into VarBitInit to keep the field name and bit 505243830Sdim// number used in targets with fixed insn length. 506243830Sdimstatic Init *fixBitInit(const RecordVal *RV, Init *Before, Init *After) { 507243830Sdim if (RV || After != UnsetInit::get()) 508243830Sdim return After; 509243830Sdim return Before; 510243830Sdim} 511243830Sdim 512226584Sdim// resolveReferences - If there are any field references that refer to fields 513226584Sdim// that have been filled in, we can propagate the values now. 514226584Sdim// 515226584SdimInit *BitsInit::resolveReferences(Record &R, const RecordVal *RV) const { 516226584Sdim bool Changed = false; 517226584Sdim SmallVector<Init *, 16> NewBits(getNumBits()); 518226584Sdim 519243830Sdim Init *CachedInit = 0; 520243830Sdim Init *CachedBitVar = 0; 521243830Sdim bool CachedBitVarChanged = false; 522243830Sdim 523243830Sdim for (unsigned i = 0, e = getNumBits(); i != e; ++i) { 524243830Sdim Init *CurBit = Bits[i]; 525243830Sdim Init *CurBitVar = CurBit->getBitVar(); 526243830Sdim 527243830Sdim NewBits[i] = CurBit; 528243830Sdim 529243830Sdim if (CurBitVar == CachedBitVar) { 530243830Sdim if (CachedBitVarChanged) { 531243830Sdim Init *Bit = CachedInit->getBit(CurBit->getBitNum()); 532243830Sdim NewBits[i] = fixBitInit(RV, CurBit, Bit); 533243830Sdim } 534243830Sdim continue; 535243830Sdim } 536243830Sdim CachedBitVar = CurBitVar; 537243830Sdim CachedBitVarChanged = false; 538243830Sdim 539226584Sdim Init *B; 540243830Sdim do { 541243830Sdim B = CurBitVar; 542243830Sdim CurBitVar = CurBitVar->resolveReferences(R, RV); 543243830Sdim CachedBitVarChanged |= B != CurBitVar; 544243830Sdim Changed |= B != CurBitVar; 545243830Sdim } while (B != CurBitVar); 546243830Sdim CachedInit = CurBitVar; 547226584Sdim 548243830Sdim if (CachedBitVarChanged) { 549243830Sdim Init *Bit = CurBitVar->getBit(CurBit->getBitNum()); 550243830Sdim NewBits[i] = fixBitInit(RV, CurBit, Bit); 551243830Sdim } 552226584Sdim } 553226584Sdim 554226584Sdim if (Changed) 555226584Sdim return BitsInit::get(NewBits); 556226584Sdim 557226584Sdim return const_cast<BitsInit *>(this); 558226584Sdim} 559226584Sdim 560226584SdimIntInit *IntInit::get(int64_t V) { 561226584Sdim typedef DenseMap<int64_t, IntInit *> Pool; 562226584Sdim static Pool ThePool; 563226584Sdim 564226584Sdim IntInit *&I = ThePool[V]; 565226584Sdim if (!I) I = new IntInit(V); 566226584Sdim return I; 567226584Sdim} 568226584Sdim 569226584Sdimstd::string IntInit::getAsString() const { 570226584Sdim return itostr(Value); 571226584Sdim} 572226584Sdim 573226584SdimInit * 574226584SdimIntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const { 575226584Sdim SmallVector<Init *, 16> NewBits(Bits.size()); 576226584Sdim 577226584Sdim for (unsigned i = 0, e = Bits.size(); i != e; ++i) { 578226584Sdim if (Bits[i] >= 64) 579226584Sdim return 0; 580226584Sdim 581226584Sdim NewBits[i] = BitInit::get(Value & (INT64_C(1) << Bits[i])); 582226584Sdim } 583226584Sdim return BitsInit::get(NewBits); 584226584Sdim} 585226584Sdim 586234353Sdimvoid StringInit::anchor() { } 587234353Sdim 588234353SdimStringInit *StringInit::get(StringRef V) { 589226584Sdim typedef StringMap<StringInit *> Pool; 590226584Sdim static Pool ThePool; 591226584Sdim 592226584Sdim StringInit *&I = ThePool[V]; 593226584Sdim if (!I) I = new StringInit(V); 594226584Sdim return I; 595226584Sdim} 596226584Sdim 597226584Sdimstatic void ProfileListInit(FoldingSetNodeID &ID, 598226584Sdim ArrayRef<Init *> Range, 599226584Sdim RecTy *EltTy) { 600226584Sdim ID.AddInteger(Range.size()); 601226584Sdim ID.AddPointer(EltTy); 602226584Sdim 603226584Sdim for (ArrayRef<Init *>::iterator i = Range.begin(), 604226584Sdim iend = Range.end(); 605226584Sdim i != iend; 606226584Sdim ++i) 607226584Sdim ID.AddPointer(*i); 608226584Sdim} 609226584Sdim 610226584SdimListInit *ListInit::get(ArrayRef<Init *> Range, RecTy *EltTy) { 611226584Sdim typedef FoldingSet<ListInit> Pool; 612226584Sdim static Pool ThePool; 613226584Sdim 614226584Sdim // Just use the FoldingSetNodeID to compute a hash. Use a DenseMap 615226584Sdim // for actual storage. 616226584Sdim FoldingSetNodeID ID; 617226584Sdim ProfileListInit(ID, Range, EltTy); 618226584Sdim 619226584Sdim void *IP = 0; 620226584Sdim if (ListInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) 621226584Sdim return I; 622226584Sdim 623226584Sdim ListInit *I = new ListInit(Range, EltTy); 624226584Sdim ThePool.InsertNode(I, IP); 625226584Sdim return I; 626226584Sdim} 627226584Sdim 628226584Sdimvoid ListInit::Profile(FoldingSetNodeID &ID) const { 629243830Sdim ListRecTy *ListType = dyn_cast<ListRecTy>(getType()); 630226584Sdim assert(ListType && "Bad type for ListInit!"); 631226584Sdim RecTy *EltTy = ListType->getElementType(); 632226584Sdim 633226584Sdim ProfileListInit(ID, Values, EltTy); 634226584Sdim} 635226584Sdim 636226584SdimInit * 637226584SdimListInit::convertInitListSlice(const std::vector<unsigned> &Elements) const { 638226584Sdim std::vector<Init*> Vals; 639226584Sdim for (unsigned i = 0, e = Elements.size(); i != e; ++i) { 640226584Sdim if (Elements[i] >= getSize()) 641226584Sdim return 0; 642226584Sdim Vals.push_back(getElement(Elements[i])); 643226584Sdim } 644226584Sdim return ListInit::get(Vals, getType()); 645226584Sdim} 646226584Sdim 647226584SdimRecord *ListInit::getElementAsRecord(unsigned i) const { 648226584Sdim assert(i < Values.size() && "List element index out of range!"); 649243830Sdim DefInit *DI = dyn_cast<DefInit>(Values[i]); 650243830Sdim if (DI == 0) 651243830Sdim PrintFatalError("Expected record in list!"); 652226584Sdim return DI->getDef(); 653226584Sdim} 654226584Sdim 655226584SdimInit *ListInit::resolveReferences(Record &R, const RecordVal *RV) const { 656226584Sdim std::vector<Init*> Resolved; 657226584Sdim Resolved.reserve(getSize()); 658226584Sdim bool Changed = false; 659226584Sdim 660226584Sdim for (unsigned i = 0, e = getSize(); i != e; ++i) { 661226584Sdim Init *E; 662226584Sdim Init *CurElt = getElement(i); 663226584Sdim 664226584Sdim do { 665226584Sdim E = CurElt; 666226584Sdim CurElt = CurElt->resolveReferences(R, RV); 667226584Sdim Changed |= E != CurElt; 668226584Sdim } while (E != CurElt); 669226584Sdim Resolved.push_back(E); 670226584Sdim } 671226584Sdim 672226584Sdim if (Changed) 673226584Sdim return ListInit::get(Resolved, getType()); 674226584Sdim return const_cast<ListInit *>(this); 675226584Sdim} 676226584Sdim 677226584SdimInit *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV, 678226584Sdim unsigned Elt) const { 679226584Sdim if (Elt >= getSize()) 680226584Sdim return 0; // Out of range reference. 681226584Sdim Init *E = getElement(Elt); 682226584Sdim // If the element is set to some value, or if we are resolving a reference 683226584Sdim // to a specific variable and that variable is explicitly unset, then 684226584Sdim // replace the VarListElementInit with it. 685243830Sdim if (IRV || !isa<UnsetInit>(E)) 686226584Sdim return E; 687226584Sdim return 0; 688226584Sdim} 689226584Sdim 690226584Sdimstd::string ListInit::getAsString() const { 691226584Sdim std::string Result = "["; 692226584Sdim for (unsigned i = 0, e = Values.size(); i != e; ++i) { 693226584Sdim if (i) Result += ", "; 694226584Sdim Result += Values[i]->getAsString(); 695226584Sdim } 696226584Sdim return Result + "]"; 697226584Sdim} 698226584Sdim 699226584SdimInit *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV, 700226584Sdim unsigned Elt) const { 701226584Sdim Init *Resolved = resolveReferences(R, IRV); 702243830Sdim OpInit *OResolved = dyn_cast<OpInit>(Resolved); 703226584Sdim if (OResolved) { 704226584Sdim Resolved = OResolved->Fold(&R, 0); 705226584Sdim } 706226584Sdim 707226584Sdim if (Resolved != this) { 708243830Sdim TypedInit *Typed = dyn_cast<TypedInit>(Resolved); 709226584Sdim assert(Typed && "Expected typed init for list reference"); 710226584Sdim if (Typed) { 711226584Sdim Init *New = Typed->resolveListElementReference(R, IRV, Elt); 712226584Sdim if (New) 713226584Sdim return New; 714226584Sdim return VarListElementInit::get(Typed, Elt); 715226584Sdim } 716226584Sdim } 717226584Sdim 718226584Sdim return 0; 719226584Sdim} 720226584Sdim 721243830SdimInit *OpInit::getBit(unsigned Bit) const { 722243830Sdim if (getType() == BitRecTy::get()) 723243830Sdim return const_cast<OpInit*>(this); 724243830Sdim return VarBitInit::get(const_cast<OpInit*>(this), Bit); 725243830Sdim} 726243830Sdim 727226584SdimUnOpInit *UnOpInit::get(UnaryOp opc, Init *lhs, RecTy *Type) { 728226584Sdim typedef std::pair<std::pair<unsigned, Init *>, RecTy *> Key; 729226584Sdim 730226584Sdim typedef DenseMap<Key, UnOpInit *> Pool; 731226584Sdim static Pool ThePool; 732226584Sdim 733226584Sdim Key TheKey(std::make_pair(std::make_pair(opc, lhs), Type)); 734226584Sdim 735226584Sdim UnOpInit *&I = ThePool[TheKey]; 736226584Sdim if (!I) I = new UnOpInit(opc, lhs, Type); 737226584Sdim return I; 738226584Sdim} 739226584Sdim 740226584SdimInit *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { 741226584Sdim switch (getOpcode()) { 742226584Sdim case CAST: { 743226584Sdim if (getType()->getAsString() == "string") { 744243830Sdim if (StringInit *LHSs = dyn_cast<StringInit>(LHS)) 745226584Sdim return LHSs; 746226584Sdim 747243830Sdim if (DefInit *LHSd = dyn_cast<DefInit>(LHS)) 748226584Sdim return StringInit::get(LHSd->getDef()->getName()); 749234353Sdim 750243830Sdim if (IntInit *LHSi = dyn_cast<IntInit>(LHS)) 751234353Sdim return StringInit::get(LHSi->getAsString()); 752226584Sdim } else { 753243830Sdim if (StringInit *LHSs = dyn_cast<StringInit>(LHS)) { 754226584Sdim std::string Name = LHSs->getValue(); 755226584Sdim 756226584Sdim // From TGParser::ParseIDValue 757226584Sdim if (CurRec) { 758226584Sdim if (const RecordVal *RV = CurRec->getValue(Name)) { 759226584Sdim if (RV->getType() != getType()) 760243830Sdim PrintFatalError("type mismatch in cast"); 761226584Sdim return VarInit::get(Name, RV->getType()); 762226584Sdim } 763226584Sdim 764234353Sdim Init *TemplateArgName = QualifyName(*CurRec, CurMultiClass, Name, 765234353Sdim ":"); 766234353Sdim 767226584Sdim if (CurRec->isTemplateArg(TemplateArgName)) { 768226584Sdim const RecordVal *RV = CurRec->getValue(TemplateArgName); 769226584Sdim assert(RV && "Template arg doesn't exist??"); 770226584Sdim 771226584Sdim if (RV->getType() != getType()) 772243830Sdim PrintFatalError("type mismatch in cast"); 773226584Sdim 774226584Sdim return VarInit::get(TemplateArgName, RV->getType()); 775226584Sdim } 776226584Sdim } 777226584Sdim 778226584Sdim if (CurMultiClass) { 779234353Sdim Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name, "::"); 780234353Sdim 781226584Sdim if (CurMultiClass->Rec.isTemplateArg(MCName)) { 782226584Sdim const RecordVal *RV = CurMultiClass->Rec.getValue(MCName); 783226584Sdim assert(RV && "Template arg doesn't exist??"); 784226584Sdim 785226584Sdim if (RV->getType() != getType()) 786243830Sdim PrintFatalError("type mismatch in cast"); 787226584Sdim 788226584Sdim return VarInit::get(MCName, RV->getType()); 789226584Sdim } 790226584Sdim } 791226584Sdim 792226584Sdim if (Record *D = (CurRec->getRecords()).getDef(Name)) 793226584Sdim return DefInit::get(D); 794226584Sdim 795243830Sdim PrintFatalError(CurRec->getLoc(), 796243830Sdim "Undefined reference:'" + Name + "'\n"); 797226584Sdim } 798226584Sdim } 799226584Sdim break; 800226584Sdim } 801226584Sdim case HEAD: { 802243830Sdim if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) { 803226584Sdim if (LHSl->getSize() == 0) { 804226584Sdim assert(0 && "Empty list in car"); 805226584Sdim return 0; 806226584Sdim } 807226584Sdim return LHSl->getElement(0); 808226584Sdim } 809226584Sdim break; 810226584Sdim } 811226584Sdim case TAIL: { 812243830Sdim if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) { 813226584Sdim if (LHSl->getSize() == 0) { 814226584Sdim assert(0 && "Empty list in cdr"); 815226584Sdim return 0; 816226584Sdim } 817226584Sdim // Note the +1. We can't just pass the result of getValues() 818226584Sdim // directly. 819226584Sdim ArrayRef<Init *>::iterator begin = LHSl->getValues().begin()+1; 820226584Sdim ArrayRef<Init *>::iterator end = LHSl->getValues().end(); 821226584Sdim ListInit *Result = 822226584Sdim ListInit::get(ArrayRef<Init *>(begin, end - begin), 823226584Sdim LHSl->getType()); 824226584Sdim return Result; 825226584Sdim } 826226584Sdim break; 827226584Sdim } 828226584Sdim case EMPTY: { 829243830Sdim if (ListInit *LHSl = dyn_cast<ListInit>(LHS)) { 830226584Sdim if (LHSl->getSize() == 0) { 831226584Sdim return IntInit::get(1); 832226584Sdim } else { 833226584Sdim return IntInit::get(0); 834226584Sdim } 835226584Sdim } 836243830Sdim if (StringInit *LHSs = dyn_cast<StringInit>(LHS)) { 837226584Sdim if (LHSs->getValue().empty()) { 838226584Sdim return IntInit::get(1); 839226584Sdim } else { 840226584Sdim return IntInit::get(0); 841226584Sdim } 842226584Sdim } 843226584Sdim 844226584Sdim break; 845226584Sdim } 846226584Sdim } 847226584Sdim return const_cast<UnOpInit *>(this); 848226584Sdim} 849226584Sdim 850226584SdimInit *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) const { 851226584Sdim Init *lhs = LHS->resolveReferences(R, RV); 852226584Sdim 853226584Sdim if (LHS != lhs) 854226584Sdim return (UnOpInit::get(getOpcode(), lhs, getType()))->Fold(&R, 0); 855226584Sdim return Fold(&R, 0); 856226584Sdim} 857226584Sdim 858226584Sdimstd::string UnOpInit::getAsString() const { 859226584Sdim std::string Result; 860226584Sdim switch (Opc) { 861226584Sdim case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break; 862226584Sdim case HEAD: Result = "!head"; break; 863226584Sdim case TAIL: Result = "!tail"; break; 864226584Sdim case EMPTY: Result = "!empty"; break; 865226584Sdim } 866226584Sdim return Result + "(" + LHS->getAsString() + ")"; 867226584Sdim} 868226584Sdim 869226584SdimBinOpInit *BinOpInit::get(BinaryOp opc, Init *lhs, 870226584Sdim Init *rhs, RecTy *Type) { 871226584Sdim typedef std::pair< 872226584Sdim std::pair<std::pair<unsigned, Init *>, Init *>, 873226584Sdim RecTy * 874226584Sdim > Key; 875226584Sdim 876226584Sdim typedef DenseMap<Key, BinOpInit *> Pool; 877226584Sdim static Pool ThePool; 878226584Sdim 879226584Sdim Key TheKey(std::make_pair(std::make_pair(std::make_pair(opc, lhs), rhs), 880226584Sdim Type)); 881226584Sdim 882226584Sdim BinOpInit *&I = ThePool[TheKey]; 883226584Sdim if (!I) I = new BinOpInit(opc, lhs, rhs, Type); 884226584Sdim return I; 885226584Sdim} 886226584Sdim 887226584SdimInit *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { 888226584Sdim switch (getOpcode()) { 889226584Sdim case CONCAT: { 890243830Sdim DagInit *LHSs = dyn_cast<DagInit>(LHS); 891243830Sdim DagInit *RHSs = dyn_cast<DagInit>(RHS); 892226584Sdim if (LHSs && RHSs) { 893243830Sdim DefInit *LOp = dyn_cast<DefInit>(LHSs->getOperator()); 894243830Sdim DefInit *ROp = dyn_cast<DefInit>(RHSs->getOperator()); 895226584Sdim if (LOp == 0 || ROp == 0 || LOp->getDef() != ROp->getDef()) 896243830Sdim PrintFatalError("Concated Dag operators do not match!"); 897226584Sdim std::vector<Init*> Args; 898226584Sdim std::vector<std::string> ArgNames; 899226584Sdim for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) { 900226584Sdim Args.push_back(LHSs->getArg(i)); 901226584Sdim ArgNames.push_back(LHSs->getArgName(i)); 902226584Sdim } 903226584Sdim for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) { 904226584Sdim Args.push_back(RHSs->getArg(i)); 905226584Sdim ArgNames.push_back(RHSs->getArgName(i)); 906226584Sdim } 907226584Sdim return DagInit::get(LHSs->getOperator(), "", Args, ArgNames); 908226584Sdim } 909226584Sdim break; 910226584Sdim } 911226584Sdim case STRCONCAT: { 912243830Sdim StringInit *LHSs = dyn_cast<StringInit>(LHS); 913243830Sdim StringInit *RHSs = dyn_cast<StringInit>(RHS); 914226584Sdim if (LHSs && RHSs) 915226584Sdim return StringInit::get(LHSs->getValue() + RHSs->getValue()); 916226584Sdim break; 917226584Sdim } 918226584Sdim case EQ: { 919226584Sdim // try to fold eq comparison for 'bit' and 'int', otherwise fallback 920226584Sdim // to string objects. 921243830Sdim IntInit *L = 922243830Sdim dyn_cast_or_null<IntInit>(LHS->convertInitializerTo(IntRecTy::get())); 923243830Sdim IntInit *R = 924243830Sdim dyn_cast_or_null<IntInit>(RHS->convertInitializerTo(IntRecTy::get())); 925226584Sdim 926226584Sdim if (L && R) 927226584Sdim return IntInit::get(L->getValue() == R->getValue()); 928226584Sdim 929243830Sdim StringInit *LHSs = dyn_cast<StringInit>(LHS); 930243830Sdim StringInit *RHSs = dyn_cast<StringInit>(RHS); 931226584Sdim 932226584Sdim // Make sure we've resolved 933226584Sdim if (LHSs && RHSs) 934226584Sdim return IntInit::get(LHSs->getValue() == RHSs->getValue()); 935226584Sdim 936226584Sdim break; 937226584Sdim } 938249423Sdim case ADD: 939226584Sdim case SHL: 940226584Sdim case SRA: 941226584Sdim case SRL: { 942243830Sdim IntInit *LHSi = dyn_cast<IntInit>(LHS); 943243830Sdim IntInit *RHSi = dyn_cast<IntInit>(RHS); 944226584Sdim if (LHSi && RHSi) { 945226584Sdim int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue(); 946226584Sdim int64_t Result; 947226584Sdim switch (getOpcode()) { 948234353Sdim default: llvm_unreachable("Bad opcode!"); 949249423Sdim case ADD: Result = LHSv + RHSv; break; 950226584Sdim case SHL: Result = LHSv << RHSv; break; 951226584Sdim case SRA: Result = LHSv >> RHSv; break; 952226584Sdim case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break; 953226584Sdim } 954226584Sdim return IntInit::get(Result); 955226584Sdim } 956226584Sdim break; 957226584Sdim } 958226584Sdim } 959226584Sdim return const_cast<BinOpInit *>(this); 960226584Sdim} 961226584Sdim 962226584SdimInit *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) const { 963226584Sdim Init *lhs = LHS->resolveReferences(R, RV); 964226584Sdim Init *rhs = RHS->resolveReferences(R, RV); 965226584Sdim 966226584Sdim if (LHS != lhs || RHS != rhs) 967226584Sdim return (BinOpInit::get(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0); 968226584Sdim return Fold(&R, 0); 969226584Sdim} 970226584Sdim 971226584Sdimstd::string BinOpInit::getAsString() const { 972226584Sdim std::string Result; 973226584Sdim switch (Opc) { 974226584Sdim case CONCAT: Result = "!con"; break; 975249423Sdim case ADD: Result = "!add"; break; 976226584Sdim case SHL: Result = "!shl"; break; 977226584Sdim case SRA: Result = "!sra"; break; 978226584Sdim case SRL: Result = "!srl"; break; 979226584Sdim case EQ: Result = "!eq"; break; 980226584Sdim case STRCONCAT: Result = "!strconcat"; break; 981226584Sdim } 982226584Sdim return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")"; 983226584Sdim} 984226584Sdim 985226584SdimTernOpInit *TernOpInit::get(TernaryOp opc, Init *lhs, 986226584Sdim Init *mhs, Init *rhs, 987226584Sdim RecTy *Type) { 988226584Sdim typedef std::pair< 989226584Sdim std::pair< 990226584Sdim std::pair<std::pair<unsigned, RecTy *>, Init *>, 991226584Sdim Init * 992226584Sdim >, 993226584Sdim Init * 994226584Sdim > Key; 995226584Sdim 996226584Sdim typedef DenseMap<Key, TernOpInit *> Pool; 997226584Sdim static Pool ThePool; 998226584Sdim 999226584Sdim Key TheKey(std::make_pair(std::make_pair(std::make_pair(std::make_pair(opc, 1000226584Sdim Type), 1001226584Sdim lhs), 1002226584Sdim mhs), 1003226584Sdim rhs)); 1004226584Sdim 1005226584Sdim TernOpInit *&I = ThePool[TheKey]; 1006226584Sdim if (!I) I = new TernOpInit(opc, lhs, mhs, rhs, Type); 1007226584Sdim return I; 1008226584Sdim} 1009226584Sdim 1010226584Sdimstatic Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, 1011226584Sdim Record *CurRec, MultiClass *CurMultiClass); 1012226584Sdim 1013226584Sdimstatic Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg, 1014226584Sdim RecTy *Type, Record *CurRec, 1015226584Sdim MultiClass *CurMultiClass) { 1016226584Sdim std::vector<Init *> NewOperands; 1017226584Sdim 1018243830Sdim TypedInit *TArg = dyn_cast<TypedInit>(Arg); 1019226584Sdim 1020226584Sdim // If this is a dag, recurse 1021226584Sdim if (TArg && TArg->getType()->getAsString() == "dag") { 1022226584Sdim Init *Result = ForeachHelper(LHS, Arg, RHSo, Type, 1023226584Sdim CurRec, CurMultiClass); 1024226584Sdim if (Result != 0) { 1025226584Sdim return Result; 1026226584Sdim } else { 1027226584Sdim return 0; 1028226584Sdim } 1029226584Sdim } 1030226584Sdim 1031226584Sdim for (int i = 0; i < RHSo->getNumOperands(); ++i) { 1032243830Sdim OpInit *RHSoo = dyn_cast<OpInit>(RHSo->getOperand(i)); 1033226584Sdim 1034226584Sdim if (RHSoo) { 1035226584Sdim Init *Result = EvaluateOperation(RHSoo, LHS, Arg, 1036226584Sdim Type, CurRec, CurMultiClass); 1037226584Sdim if (Result != 0) { 1038226584Sdim NewOperands.push_back(Result); 1039226584Sdim } else { 1040226584Sdim NewOperands.push_back(Arg); 1041226584Sdim } 1042226584Sdim } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) { 1043226584Sdim NewOperands.push_back(Arg); 1044226584Sdim } else { 1045226584Sdim NewOperands.push_back(RHSo->getOperand(i)); 1046226584Sdim } 1047226584Sdim } 1048226584Sdim 1049226584Sdim // Now run the operator and use its result as the new leaf 1050226584Sdim const OpInit *NewOp = RHSo->clone(NewOperands); 1051226584Sdim Init *NewVal = NewOp->Fold(CurRec, CurMultiClass); 1052226584Sdim if (NewVal != NewOp) 1053226584Sdim return NewVal; 1054226584Sdim 1055226584Sdim return 0; 1056226584Sdim} 1057226584Sdim 1058226584Sdimstatic Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type, 1059226584Sdim Record *CurRec, MultiClass *CurMultiClass) { 1060243830Sdim DagInit *MHSd = dyn_cast<DagInit>(MHS); 1061243830Sdim ListInit *MHSl = dyn_cast<ListInit>(MHS); 1062226584Sdim 1063243830Sdim OpInit *RHSo = dyn_cast<OpInit>(RHS); 1064226584Sdim 1065226584Sdim if (!RHSo) { 1066243830Sdim PrintFatalError(CurRec->getLoc(), "!foreach requires an operator\n"); 1067226584Sdim } 1068226584Sdim 1069243830Sdim TypedInit *LHSt = dyn_cast<TypedInit>(LHS); 1070226584Sdim 1071243830Sdim if (!LHSt) 1072243830Sdim PrintFatalError(CurRec->getLoc(), "!foreach requires typed variable\n"); 1073226584Sdim 1074243830Sdim if ((MHSd && isa<DagRecTy>(Type)) || (MHSl && isa<ListRecTy>(Type))) { 1075226584Sdim if (MHSd) { 1076226584Sdim Init *Val = MHSd->getOperator(); 1077226584Sdim Init *Result = EvaluateOperation(RHSo, LHS, Val, 1078226584Sdim Type, CurRec, CurMultiClass); 1079226584Sdim if (Result != 0) { 1080226584Sdim Val = Result; 1081226584Sdim } 1082226584Sdim 1083226584Sdim std::vector<std::pair<Init *, std::string> > args; 1084226584Sdim for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) { 1085226584Sdim Init *Arg; 1086226584Sdim std::string ArgName; 1087226584Sdim Arg = MHSd->getArg(i); 1088226584Sdim ArgName = MHSd->getArgName(i); 1089226584Sdim 1090226584Sdim // Process args 1091226584Sdim Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type, 1092226584Sdim CurRec, CurMultiClass); 1093226584Sdim if (Result != 0) { 1094226584Sdim Arg = Result; 1095226584Sdim } 1096226584Sdim 1097226584Sdim // TODO: Process arg names 1098226584Sdim args.push_back(std::make_pair(Arg, ArgName)); 1099226584Sdim } 1100226584Sdim 1101226584Sdim return DagInit::get(Val, "", args); 1102226584Sdim } 1103226584Sdim if (MHSl) { 1104226584Sdim std::vector<Init *> NewOperands; 1105226584Sdim std::vector<Init *> NewList(MHSl->begin(), MHSl->end()); 1106226584Sdim 1107226584Sdim for (std::vector<Init *>::iterator li = NewList.begin(), 1108226584Sdim liend = NewList.end(); 1109226584Sdim li != liend; 1110226584Sdim ++li) { 1111226584Sdim Init *Item = *li; 1112226584Sdim NewOperands.clear(); 1113226584Sdim for(int i = 0; i < RHSo->getNumOperands(); ++i) { 1114226584Sdim // First, replace the foreach variable with the list item 1115226584Sdim if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) { 1116226584Sdim NewOperands.push_back(Item); 1117226584Sdim } else { 1118226584Sdim NewOperands.push_back(RHSo->getOperand(i)); 1119226584Sdim } 1120226584Sdim } 1121226584Sdim 1122226584Sdim // Now run the operator and use its result as the new list item 1123226584Sdim const OpInit *NewOp = RHSo->clone(NewOperands); 1124226584Sdim Init *NewItem = NewOp->Fold(CurRec, CurMultiClass); 1125226584Sdim if (NewItem != NewOp) 1126226584Sdim *li = NewItem; 1127226584Sdim } 1128226584Sdim return ListInit::get(NewList, MHSl->getType()); 1129226584Sdim } 1130226584Sdim } 1131226584Sdim return 0; 1132226584Sdim} 1133226584Sdim 1134226584SdimInit *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) const { 1135226584Sdim switch (getOpcode()) { 1136226584Sdim case SUBST: { 1137243830Sdim DefInit *LHSd = dyn_cast<DefInit>(LHS); 1138243830Sdim VarInit *LHSv = dyn_cast<VarInit>(LHS); 1139243830Sdim StringInit *LHSs = dyn_cast<StringInit>(LHS); 1140226584Sdim 1141243830Sdim DefInit *MHSd = dyn_cast<DefInit>(MHS); 1142243830Sdim VarInit *MHSv = dyn_cast<VarInit>(MHS); 1143243830Sdim StringInit *MHSs = dyn_cast<StringInit>(MHS); 1144226584Sdim 1145243830Sdim DefInit *RHSd = dyn_cast<DefInit>(RHS); 1146243830Sdim VarInit *RHSv = dyn_cast<VarInit>(RHS); 1147243830Sdim StringInit *RHSs = dyn_cast<StringInit>(RHS); 1148226584Sdim 1149226584Sdim if ((LHSd && MHSd && RHSd) 1150226584Sdim || (LHSv && MHSv && RHSv) 1151226584Sdim || (LHSs && MHSs && RHSs)) { 1152226584Sdim if (RHSd) { 1153226584Sdim Record *Val = RHSd->getDef(); 1154226584Sdim if (LHSd->getAsString() == RHSd->getAsString()) { 1155226584Sdim Val = MHSd->getDef(); 1156226584Sdim } 1157226584Sdim return DefInit::get(Val); 1158226584Sdim } 1159226584Sdim if (RHSv) { 1160226584Sdim std::string Val = RHSv->getName(); 1161226584Sdim if (LHSv->getAsString() == RHSv->getAsString()) { 1162226584Sdim Val = MHSv->getName(); 1163226584Sdim } 1164226584Sdim return VarInit::get(Val, getType()); 1165226584Sdim } 1166226584Sdim if (RHSs) { 1167226584Sdim std::string Val = RHSs->getValue(); 1168226584Sdim 1169226584Sdim std::string::size_type found; 1170226584Sdim std::string::size_type idx = 0; 1171226584Sdim do { 1172226584Sdim found = Val.find(LHSs->getValue(), idx); 1173226584Sdim if (found != std::string::npos) { 1174226584Sdim Val.replace(found, LHSs->getValue().size(), MHSs->getValue()); 1175226584Sdim } 1176226584Sdim idx = found + MHSs->getValue().size(); 1177226584Sdim } while (found != std::string::npos); 1178226584Sdim 1179226584Sdim return StringInit::get(Val); 1180226584Sdim } 1181226584Sdim } 1182226584Sdim break; 1183226584Sdim } 1184226584Sdim 1185226584Sdim case FOREACH: { 1186226584Sdim Init *Result = ForeachHelper(LHS, MHS, RHS, getType(), 1187226584Sdim CurRec, CurMultiClass); 1188226584Sdim if (Result != 0) { 1189226584Sdim return Result; 1190226584Sdim } 1191226584Sdim break; 1192226584Sdim } 1193226584Sdim 1194226584Sdim case IF: { 1195243830Sdim IntInit *LHSi = dyn_cast<IntInit>(LHS); 1196226584Sdim if (Init *I = LHS->convertInitializerTo(IntRecTy::get())) 1197243830Sdim LHSi = dyn_cast<IntInit>(I); 1198226584Sdim if (LHSi) { 1199226584Sdim if (LHSi->getValue()) { 1200226584Sdim return MHS; 1201226584Sdim } else { 1202226584Sdim return RHS; 1203226584Sdim } 1204226584Sdim } 1205226584Sdim break; 1206226584Sdim } 1207226584Sdim } 1208226584Sdim 1209226584Sdim return const_cast<TernOpInit *>(this); 1210226584Sdim} 1211226584Sdim 1212226584SdimInit *TernOpInit::resolveReferences(Record &R, 1213226584Sdim const RecordVal *RV) const { 1214226584Sdim Init *lhs = LHS->resolveReferences(R, RV); 1215226584Sdim 1216226584Sdim if (Opc == IF && lhs != LHS) { 1217243830Sdim IntInit *Value = dyn_cast<IntInit>(lhs); 1218226584Sdim if (Init *I = lhs->convertInitializerTo(IntRecTy::get())) 1219243830Sdim Value = dyn_cast<IntInit>(I); 1220226584Sdim if (Value != 0) { 1221226584Sdim // Short-circuit 1222226584Sdim if (Value->getValue()) { 1223226584Sdim Init *mhs = MHS->resolveReferences(R, RV); 1224226584Sdim return (TernOpInit::get(getOpcode(), lhs, mhs, 1225226584Sdim RHS, getType()))->Fold(&R, 0); 1226226584Sdim } else { 1227226584Sdim Init *rhs = RHS->resolveReferences(R, RV); 1228226584Sdim return (TernOpInit::get(getOpcode(), lhs, MHS, 1229226584Sdim rhs, getType()))->Fold(&R, 0); 1230226584Sdim } 1231226584Sdim } 1232226584Sdim } 1233226584Sdim 1234226584Sdim Init *mhs = MHS->resolveReferences(R, RV); 1235226584Sdim Init *rhs = RHS->resolveReferences(R, RV); 1236226584Sdim 1237226584Sdim if (LHS != lhs || MHS != mhs || RHS != rhs) 1238226584Sdim return (TernOpInit::get(getOpcode(), lhs, mhs, rhs, 1239226584Sdim getType()))->Fold(&R, 0); 1240226584Sdim return Fold(&R, 0); 1241226584Sdim} 1242226584Sdim 1243226584Sdimstd::string TernOpInit::getAsString() const { 1244226584Sdim std::string Result; 1245226584Sdim switch (Opc) { 1246226584Sdim case SUBST: Result = "!subst"; break; 1247226584Sdim case FOREACH: Result = "!foreach"; break; 1248226584Sdim case IF: Result = "!if"; break; 1249226584Sdim } 1250226584Sdim return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", " 1251226584Sdim + RHS->getAsString() + ")"; 1252226584Sdim} 1253226584Sdim 1254226584SdimRecTy *TypedInit::getFieldType(const std::string &FieldName) const { 1255243830Sdim if (RecordRecTy *RecordType = dyn_cast<RecordRecTy>(getType())) 1256243830Sdim if (RecordVal *Field = RecordType->getRecord()->getValue(FieldName)) 1257226584Sdim return Field->getType(); 1258226584Sdim return 0; 1259226584Sdim} 1260226584Sdim 1261226584SdimInit * 1262226584SdimTypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) const { 1263243830Sdim BitsRecTy *T = dyn_cast<BitsRecTy>(getType()); 1264226584Sdim if (T == 0) return 0; // Cannot subscript a non-bits variable. 1265226584Sdim unsigned NumBits = T->getNumBits(); 1266226584Sdim 1267226584Sdim SmallVector<Init *, 16> NewBits(Bits.size()); 1268226584Sdim for (unsigned i = 0, e = Bits.size(); i != e; ++i) { 1269226584Sdim if (Bits[i] >= NumBits) 1270226584Sdim return 0; 1271226584Sdim 1272226584Sdim NewBits[i] = VarBitInit::get(const_cast<TypedInit *>(this), Bits[i]); 1273226584Sdim } 1274226584Sdim return BitsInit::get(NewBits); 1275226584Sdim} 1276226584Sdim 1277226584SdimInit * 1278226584SdimTypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) const { 1279243830Sdim ListRecTy *T = dyn_cast<ListRecTy>(getType()); 1280226584Sdim if (T == 0) return 0; // Cannot subscript a non-list variable. 1281226584Sdim 1282226584Sdim if (Elements.size() == 1) 1283226584Sdim return VarListElementInit::get(const_cast<TypedInit *>(this), Elements[0]); 1284226584Sdim 1285226584Sdim std::vector<Init*> ListInits; 1286226584Sdim ListInits.reserve(Elements.size()); 1287226584Sdim for (unsigned i = 0, e = Elements.size(); i != e; ++i) 1288226584Sdim ListInits.push_back(VarListElementInit::get(const_cast<TypedInit *>(this), 1289226584Sdim Elements[i])); 1290226584Sdim return ListInit::get(ListInits, T); 1291226584Sdim} 1292226584Sdim 1293226584Sdim 1294226584SdimVarInit *VarInit::get(const std::string &VN, RecTy *T) { 1295234353Sdim Init *Value = StringInit::get(VN); 1296234353Sdim return VarInit::get(Value, T); 1297234353Sdim} 1298234353Sdim 1299234353SdimVarInit *VarInit::get(Init *VN, RecTy *T) { 1300234353Sdim typedef std::pair<RecTy *, Init *> Key; 1301226584Sdim typedef DenseMap<Key, VarInit *> Pool; 1302226584Sdim static Pool ThePool; 1303226584Sdim 1304226584Sdim Key TheKey(std::make_pair(T, VN)); 1305226584Sdim 1306226584Sdim VarInit *&I = ThePool[TheKey]; 1307226584Sdim if (!I) I = new VarInit(VN, T); 1308226584Sdim return I; 1309226584Sdim} 1310226584Sdim 1311234353Sdimconst std::string &VarInit::getName() const { 1312243830Sdim StringInit *NameString = dyn_cast<StringInit>(getNameInit()); 1313234353Sdim assert(NameString && "VarInit name is not a string!"); 1314234353Sdim return NameString->getValue(); 1315234353Sdim} 1316234353Sdim 1317243830SdimInit *VarInit::getBit(unsigned Bit) const { 1318243830Sdim if (getType() == BitRecTy::get()) 1319243830Sdim return const_cast<VarInit*>(this); 1320243830Sdim return VarBitInit::get(const_cast<VarInit*>(this), Bit); 1321226584Sdim} 1322226584Sdim 1323226584SdimInit *VarInit::resolveListElementReference(Record &R, 1324226584Sdim const RecordVal *IRV, 1325226584Sdim unsigned Elt) const { 1326234353Sdim if (R.isTemplateArg(getNameInit())) return 0; 1327234353Sdim if (IRV && IRV->getNameInit() != getNameInit()) return 0; 1328226584Sdim 1329234353Sdim RecordVal *RV = R.getValue(getNameInit()); 1330226584Sdim assert(RV && "Reference to a non-existent variable?"); 1331243830Sdim ListInit *LI = dyn_cast<ListInit>(RV->getValue()); 1332226584Sdim if (!LI) { 1333243830Sdim TypedInit *VI = dyn_cast<TypedInit>(RV->getValue()); 1334226584Sdim assert(VI && "Invalid list element!"); 1335226584Sdim return VarListElementInit::get(VI, Elt); 1336226584Sdim } 1337226584Sdim 1338226584Sdim if (Elt >= LI->getSize()) 1339226584Sdim return 0; // Out of range reference. 1340226584Sdim Init *E = LI->getElement(Elt); 1341226584Sdim // If the element is set to some value, or if we are resolving a reference 1342226584Sdim // to a specific variable and that variable is explicitly unset, then 1343226584Sdim // replace the VarListElementInit with it. 1344243830Sdim if (IRV || !isa<UnsetInit>(E)) 1345226584Sdim return E; 1346226584Sdim return 0; 1347226584Sdim} 1348226584Sdim 1349226584Sdim 1350226584SdimRecTy *VarInit::getFieldType(const std::string &FieldName) const { 1351243830Sdim if (RecordRecTy *RTy = dyn_cast<RecordRecTy>(getType())) 1352226584Sdim if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName)) 1353226584Sdim return RV->getType(); 1354226584Sdim return 0; 1355226584Sdim} 1356226584Sdim 1357226584SdimInit *VarInit::getFieldInit(Record &R, const RecordVal *RV, 1358226584Sdim const std::string &FieldName) const { 1359243830Sdim if (isa<RecordRecTy>(getType())) 1360226584Sdim if (const RecordVal *Val = R.getValue(VarName)) { 1361243830Sdim if (RV != Val && (RV || isa<UnsetInit>(Val->getValue()))) 1362226584Sdim return 0; 1363226584Sdim Init *TheInit = Val->getValue(); 1364226584Sdim assert(TheInit != this && "Infinite loop detected!"); 1365226584Sdim if (Init *I = TheInit->getFieldInit(R, RV, FieldName)) 1366226584Sdim return I; 1367226584Sdim else 1368226584Sdim return 0; 1369226584Sdim } 1370226584Sdim return 0; 1371226584Sdim} 1372226584Sdim 1373226584Sdim/// resolveReferences - This method is used by classes that refer to other 1374226584Sdim/// variables which may not be defined at the time the expression is formed. 1375226584Sdim/// If a value is set for the variable later, this method will be called on 1376226584Sdim/// users of the value to allow the value to propagate out. 1377226584Sdim/// 1378226584SdimInit *VarInit::resolveReferences(Record &R, const RecordVal *RV) const { 1379226584Sdim if (RecordVal *Val = R.getValue(VarName)) 1380243830Sdim if (RV == Val || (RV == 0 && !isa<UnsetInit>(Val->getValue()))) 1381226584Sdim return Val->getValue(); 1382226584Sdim return const_cast<VarInit *>(this); 1383226584Sdim} 1384226584Sdim 1385226584SdimVarBitInit *VarBitInit::get(TypedInit *T, unsigned B) { 1386226584Sdim typedef std::pair<TypedInit *, unsigned> Key; 1387226584Sdim typedef DenseMap<Key, VarBitInit *> Pool; 1388226584Sdim 1389226584Sdim static Pool ThePool; 1390226584Sdim 1391226584Sdim Key TheKey(std::make_pair(T, B)); 1392226584Sdim 1393226584Sdim VarBitInit *&I = ThePool[TheKey]; 1394226584Sdim if (!I) I = new VarBitInit(T, B); 1395226584Sdim return I; 1396226584Sdim} 1397226584Sdim 1398226584Sdimstd::string VarBitInit::getAsString() const { 1399226584Sdim return TI->getAsString() + "{" + utostr(Bit) + "}"; 1400226584Sdim} 1401226584Sdim 1402226584SdimInit *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) const { 1403243830Sdim Init *I = TI->resolveReferences(R, RV); 1404243830Sdim if (TI != I) 1405243830Sdim return I->getBit(getBitNum()); 1406243830Sdim 1407243830Sdim return const_cast<VarBitInit*>(this); 1408226584Sdim} 1409226584Sdim 1410226584SdimVarListElementInit *VarListElementInit::get(TypedInit *T, 1411226584Sdim unsigned E) { 1412226584Sdim typedef std::pair<TypedInit *, unsigned> Key; 1413226584Sdim typedef DenseMap<Key, VarListElementInit *> Pool; 1414226584Sdim 1415226584Sdim static Pool ThePool; 1416226584Sdim 1417226584Sdim Key TheKey(std::make_pair(T, E)); 1418226584Sdim 1419226584Sdim VarListElementInit *&I = ThePool[TheKey]; 1420226584Sdim if (!I) I = new VarListElementInit(T, E); 1421226584Sdim return I; 1422226584Sdim} 1423226584Sdim 1424226584Sdimstd::string VarListElementInit::getAsString() const { 1425226584Sdim return TI->getAsString() + "[" + utostr(Element) + "]"; 1426226584Sdim} 1427226584Sdim 1428226584SdimInit * 1429226584SdimVarListElementInit::resolveReferences(Record &R, const RecordVal *RV) const { 1430226584Sdim if (Init *I = getVariable()->resolveListElementReference(R, RV, 1431226584Sdim getElementNum())) 1432226584Sdim return I; 1433226584Sdim return const_cast<VarListElementInit *>(this); 1434226584Sdim} 1435226584Sdim 1436243830SdimInit *VarListElementInit::getBit(unsigned Bit) const { 1437243830Sdim if (getType() == BitRecTy::get()) 1438243830Sdim return const_cast<VarListElementInit*>(this); 1439243830Sdim return VarBitInit::get(const_cast<VarListElementInit*>(this), Bit); 1440226584Sdim} 1441226584Sdim 1442226584SdimInit *VarListElementInit:: resolveListElementReference(Record &R, 1443226584Sdim const RecordVal *RV, 1444226584Sdim unsigned Elt) const { 1445226584Sdim Init *Result = TI->resolveListElementReference(R, RV, Element); 1446226584Sdim 1447226584Sdim if (Result) { 1448243830Sdim if (TypedInit *TInit = dyn_cast<TypedInit>(Result)) { 1449226584Sdim Init *Result2 = TInit->resolveListElementReference(R, RV, Elt); 1450226584Sdim if (Result2) return Result2; 1451226584Sdim return new VarListElementInit(TInit, Elt); 1452226584Sdim } 1453226584Sdim return Result; 1454226584Sdim } 1455226584Sdim 1456226584Sdim return 0; 1457226584Sdim} 1458226584Sdim 1459226584SdimDefInit *DefInit::get(Record *R) { 1460226584Sdim return R->getDefInit(); 1461226584Sdim} 1462226584Sdim 1463226584SdimRecTy *DefInit::getFieldType(const std::string &FieldName) const { 1464226584Sdim if (const RecordVal *RV = Def->getValue(FieldName)) 1465226584Sdim return RV->getType(); 1466226584Sdim return 0; 1467226584Sdim} 1468226584Sdim 1469226584SdimInit *DefInit::getFieldInit(Record &R, const RecordVal *RV, 1470226584Sdim const std::string &FieldName) const { 1471226584Sdim return Def->getValue(FieldName)->getValue(); 1472226584Sdim} 1473226584Sdim 1474226584Sdim 1475226584Sdimstd::string DefInit::getAsString() const { 1476226584Sdim return Def->getName(); 1477226584Sdim} 1478226584Sdim 1479226584SdimFieldInit *FieldInit::get(Init *R, const std::string &FN) { 1480226584Sdim typedef std::pair<Init *, TableGenStringKey> Key; 1481226584Sdim typedef DenseMap<Key, FieldInit *> Pool; 1482226584Sdim static Pool ThePool; 1483226584Sdim 1484226584Sdim Key TheKey(std::make_pair(R, FN)); 1485226584Sdim 1486226584Sdim FieldInit *&I = ThePool[TheKey]; 1487226584Sdim if (!I) I = new FieldInit(R, FN); 1488226584Sdim return I; 1489226584Sdim} 1490226584Sdim 1491243830SdimInit *FieldInit::getBit(unsigned Bit) const { 1492243830Sdim if (getType() == BitRecTy::get()) 1493243830Sdim return const_cast<FieldInit*>(this); 1494243830Sdim return VarBitInit::get(const_cast<FieldInit*>(this), Bit); 1495226584Sdim} 1496226584Sdim 1497226584SdimInit *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV, 1498226584Sdim unsigned Elt) const { 1499226584Sdim if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName)) 1500243830Sdim if (ListInit *LI = dyn_cast<ListInit>(ListVal)) { 1501226584Sdim if (Elt >= LI->getSize()) return 0; 1502226584Sdim Init *E = LI->getElement(Elt); 1503226584Sdim 1504226584Sdim // If the element is set to some value, or if we are resolving a 1505226584Sdim // reference to a specific variable and that variable is explicitly 1506226584Sdim // unset, then replace the VarListElementInit with it. 1507243830Sdim if (RV || !isa<UnsetInit>(E)) 1508226584Sdim return E; 1509226584Sdim } 1510226584Sdim return 0; 1511226584Sdim} 1512226584Sdim 1513226584SdimInit *FieldInit::resolveReferences(Record &R, const RecordVal *RV) const { 1514226584Sdim Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec; 1515226584Sdim 1516226584Sdim Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName); 1517226584Sdim if (BitsVal) { 1518226584Sdim Init *BVR = BitsVal->resolveReferences(R, RV); 1519226584Sdim return BVR->isComplete() ? BVR : const_cast<FieldInit *>(this); 1520226584Sdim } 1521226584Sdim 1522226584Sdim if (NewRec != Rec) { 1523226584Sdim return FieldInit::get(NewRec, FieldName); 1524226584Sdim } 1525226584Sdim return const_cast<FieldInit *>(this); 1526226584Sdim} 1527226584Sdim 1528249423Sdimstatic void ProfileDagInit(FoldingSetNodeID &ID, Init *V, const std::string &VN, 1529249423Sdim ArrayRef<Init *> ArgRange, 1530249423Sdim ArrayRef<std::string> NameRange) { 1531226584Sdim ID.AddPointer(V); 1532226584Sdim ID.AddString(VN); 1533226584Sdim 1534226584Sdim ArrayRef<Init *>::iterator Arg = ArgRange.begin(); 1535226584Sdim ArrayRef<std::string>::iterator Name = NameRange.begin(); 1536226584Sdim while (Arg != ArgRange.end()) { 1537226584Sdim assert(Name != NameRange.end() && "Arg name underflow!"); 1538226584Sdim ID.AddPointer(*Arg++); 1539226584Sdim ID.AddString(*Name++); 1540226584Sdim } 1541226584Sdim assert(Name == NameRange.end() && "Arg name overflow!"); 1542226584Sdim} 1543226584Sdim 1544226584SdimDagInit * 1545226584SdimDagInit::get(Init *V, const std::string &VN, 1546226584Sdim ArrayRef<Init *> ArgRange, 1547226584Sdim ArrayRef<std::string> NameRange) { 1548226584Sdim typedef FoldingSet<DagInit> Pool; 1549226584Sdim static Pool ThePool; 1550226584Sdim 1551226584Sdim FoldingSetNodeID ID; 1552226584Sdim ProfileDagInit(ID, V, VN, ArgRange, NameRange); 1553226584Sdim 1554226584Sdim void *IP = 0; 1555226584Sdim if (DagInit *I = ThePool.FindNodeOrInsertPos(ID, IP)) 1556226584Sdim return I; 1557226584Sdim 1558226584Sdim DagInit *I = new DagInit(V, VN, ArgRange, NameRange); 1559226584Sdim ThePool.InsertNode(I, IP); 1560226584Sdim 1561226584Sdim return I; 1562226584Sdim} 1563226584Sdim 1564226584SdimDagInit * 1565226584SdimDagInit::get(Init *V, const std::string &VN, 1566226584Sdim const std::vector<std::pair<Init*, std::string> > &args) { 1567226584Sdim typedef std::pair<Init*, std::string> PairType; 1568226584Sdim 1569226584Sdim std::vector<Init *> Args; 1570226584Sdim std::vector<std::string> Names; 1571226584Sdim 1572226584Sdim for (std::vector<PairType>::const_iterator i = args.begin(), 1573226584Sdim iend = args.end(); 1574226584Sdim i != iend; 1575226584Sdim ++i) { 1576226584Sdim Args.push_back(i->first); 1577226584Sdim Names.push_back(i->second); 1578226584Sdim } 1579226584Sdim 1580226584Sdim return DagInit::get(V, VN, Args, Names); 1581226584Sdim} 1582226584Sdim 1583226584Sdimvoid DagInit::Profile(FoldingSetNodeID &ID) const { 1584226584Sdim ProfileDagInit(ID, Val, ValName, Args, ArgNames); 1585226584Sdim} 1586226584Sdim 1587226584SdimInit *DagInit::resolveReferences(Record &R, const RecordVal *RV) const { 1588226584Sdim std::vector<Init*> NewArgs; 1589226584Sdim for (unsigned i = 0, e = Args.size(); i != e; ++i) 1590226584Sdim NewArgs.push_back(Args[i]->resolveReferences(R, RV)); 1591226584Sdim 1592226584Sdim Init *Op = Val->resolveReferences(R, RV); 1593226584Sdim 1594226584Sdim if (Args != NewArgs || Op != Val) 1595226584Sdim return DagInit::get(Op, ValName, NewArgs, ArgNames); 1596226584Sdim 1597226584Sdim return const_cast<DagInit *>(this); 1598226584Sdim} 1599226584Sdim 1600226584Sdim 1601226584Sdimstd::string DagInit::getAsString() const { 1602226584Sdim std::string Result = "(" + Val->getAsString(); 1603226584Sdim if (!ValName.empty()) 1604226584Sdim Result += ":" + ValName; 1605226584Sdim if (Args.size()) { 1606226584Sdim Result += " " + Args[0]->getAsString(); 1607226584Sdim if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0]; 1608226584Sdim for (unsigned i = 1, e = Args.size(); i != e; ++i) { 1609226584Sdim Result += ", " + Args[i]->getAsString(); 1610226584Sdim if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i]; 1611226584Sdim } 1612226584Sdim } 1613226584Sdim return Result + ")"; 1614226584Sdim} 1615226584Sdim 1616226584Sdim 1617226584Sdim//===----------------------------------------------------------------------===// 1618226584Sdim// Other implementations 1619226584Sdim//===----------------------------------------------------------------------===// 1620226584Sdim 1621226584SdimRecordVal::RecordVal(Init *N, RecTy *T, unsigned P) 1622226584Sdim : Name(N), Ty(T), Prefix(P) { 1623226584Sdim Value = Ty->convertValue(UnsetInit::get()); 1624226584Sdim assert(Value && "Cannot create unset value for current type!"); 1625226584Sdim} 1626226584Sdim 1627226584SdimRecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P) 1628226584Sdim : Name(StringInit::get(N)), Ty(T), Prefix(P) { 1629226584Sdim Value = Ty->convertValue(UnsetInit::get()); 1630226584Sdim assert(Value && "Cannot create unset value for current type!"); 1631226584Sdim} 1632226584Sdim 1633226584Sdimconst std::string &RecordVal::getName() const { 1634243830Sdim StringInit *NameString = dyn_cast<StringInit>(Name); 1635226584Sdim assert(NameString && "RecordVal name is not a string!"); 1636226584Sdim return NameString->getValue(); 1637226584Sdim} 1638226584Sdim 1639226584Sdimvoid RecordVal::dump() const { errs() << *this; } 1640226584Sdim 1641226584Sdimvoid RecordVal::print(raw_ostream &OS, bool PrintSem) const { 1642226584Sdim if (getPrefix()) OS << "field "; 1643234353Sdim OS << *getType() << " " << getNameInitAsString(); 1644226584Sdim 1645226584Sdim if (getValue()) 1646226584Sdim OS << " = " << *getValue(); 1647226584Sdim 1648226584Sdim if (PrintSem) OS << ";\n"; 1649226584Sdim} 1650226584Sdim 1651226584Sdimunsigned Record::LastID = 0; 1652226584Sdim 1653234353Sdimvoid Record::init() { 1654234353Sdim checkName(); 1655234353Sdim 1656234353Sdim // Every record potentially has a def at the top. This value is 1657234353Sdim // replaced with the top-level def name at instantiation time. 1658234353Sdim RecordVal DN("NAME", StringRecTy::get(), 0); 1659234353Sdim addValue(DN); 1660234353Sdim} 1661234353Sdim 1662226584Sdimvoid Record::checkName() { 1663226584Sdim // Ensure the record name has string type. 1664243830Sdim const TypedInit *TypedName = dyn_cast<const TypedInit>(Name); 1665226584Sdim assert(TypedName && "Record name is not typed!"); 1666226584Sdim RecTy *Type = TypedName->getType(); 1667243830Sdim if (!isa<StringRecTy>(Type)) 1668243830Sdim PrintFatalError(getLoc(), "Record name is not a string!"); 1669226584Sdim} 1670226584Sdim 1671226584SdimDefInit *Record::getDefInit() { 1672226584Sdim if (!TheInit) 1673226584Sdim TheInit = new DefInit(this, new RecordRecTy(this)); 1674226584Sdim return TheInit; 1675226584Sdim} 1676226584Sdim 1677226584Sdimconst std::string &Record::getName() const { 1678243830Sdim const StringInit *NameString = dyn_cast<StringInit>(Name); 1679226584Sdim assert(NameString && "Record name is not a string!"); 1680226584Sdim return NameString->getValue(); 1681226584Sdim} 1682226584Sdim 1683226584Sdimvoid Record::setName(Init *NewName) { 1684226584Sdim if (TrackedRecords.getDef(Name->getAsUnquotedString()) == this) { 1685226584Sdim TrackedRecords.removeDef(Name->getAsUnquotedString()); 1686226584Sdim TrackedRecords.addDef(this); 1687234353Sdim } else if (TrackedRecords.getClass(Name->getAsUnquotedString()) == this) { 1688226584Sdim TrackedRecords.removeClass(Name->getAsUnquotedString()); 1689226584Sdim TrackedRecords.addClass(this); 1690234353Sdim } // Otherwise this isn't yet registered. 1691234353Sdim Name = NewName; 1692226584Sdim checkName(); 1693226584Sdim // DO NOT resolve record values to the name at this point because 1694226584Sdim // there might be default values for arguments of this def. Those 1695226584Sdim // arguments might not have been resolved yet so we don't want to 1696226584Sdim // prematurely assume values for those arguments were not passed to 1697226584Sdim // this def. 1698226584Sdim // 1699226584Sdim // Nonetheless, it may be that some of this Record's values 1700226584Sdim // reference the record name. Indeed, the reason for having the 1701226584Sdim // record name be an Init is to provide this flexibility. The extra 1702226584Sdim // resolve steps after completely instantiating defs takes care of 1703226584Sdim // this. See TGParser::ParseDef and TGParser::ParseDefm. 1704226584Sdim} 1705226584Sdim 1706226584Sdimvoid Record::setName(const std::string &Name) { 1707226584Sdim setName(StringInit::get(Name)); 1708226584Sdim} 1709226584Sdim 1710226584Sdim/// resolveReferencesTo - If anything in this record refers to RV, replace the 1711226584Sdim/// reference to RV with the RHS of RV. If RV is null, we resolve all possible 1712226584Sdim/// references. 1713226584Sdimvoid Record::resolveReferencesTo(const RecordVal *RV) { 1714226584Sdim for (unsigned i = 0, e = Values.size(); i != e; ++i) { 1715234353Sdim if (RV == &Values[i]) // Skip resolve the same field as the given one 1716234353Sdim continue; 1717226584Sdim if (Init *V = Values[i].getValue()) 1718243830Sdim if (Values[i].setValue(V->resolveReferences(*this, RV))) 1719243830Sdim PrintFatalError(getLoc(), "Invalid value is found when setting '" 1720243830Sdim + Values[i].getNameInitAsString() 1721243830Sdim + "' after resolving references" 1722243830Sdim + (RV ? " against '" + RV->getNameInitAsString() 1723243830Sdim + "' of (" 1724243830Sdim + RV->getValue()->getAsUnquotedString() + ")" 1725243830Sdim : "") 1726243830Sdim + "\n"); 1727226584Sdim } 1728234353Sdim Init *OldName = getNameInit(); 1729234353Sdim Init *NewName = Name->resolveReferences(*this, RV); 1730234353Sdim if (NewName != OldName) { 1731234353Sdim // Re-register with RecordKeeper. 1732234353Sdim setName(NewName); 1733234353Sdim } 1734226584Sdim} 1735226584Sdim 1736226584Sdimvoid Record::dump() const { errs() << *this; } 1737226584Sdim 1738226584Sdimraw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) { 1739234353Sdim OS << R.getNameInitAsString(); 1740226584Sdim 1741234353Sdim const std::vector<Init *> &TArgs = R.getTemplateArgs(); 1742226584Sdim if (!TArgs.empty()) { 1743226584Sdim OS << "<"; 1744226584Sdim for (unsigned i = 0, e = TArgs.size(); i != e; ++i) { 1745226584Sdim if (i) OS << ", "; 1746226584Sdim const RecordVal *RV = R.getValue(TArgs[i]); 1747226584Sdim assert(RV && "Template argument record not found??"); 1748226584Sdim RV->print(OS, false); 1749226584Sdim } 1750226584Sdim OS << ">"; 1751226584Sdim } 1752226584Sdim 1753226584Sdim OS << " {"; 1754226584Sdim const std::vector<Record*> &SC = R.getSuperClasses(); 1755226584Sdim if (!SC.empty()) { 1756226584Sdim OS << "\t//"; 1757226584Sdim for (unsigned i = 0, e = SC.size(); i != e; ++i) 1758234353Sdim OS << " " << SC[i]->getNameInitAsString(); 1759226584Sdim } 1760226584Sdim OS << "\n"; 1761226584Sdim 1762226584Sdim const std::vector<RecordVal> &Vals = R.getValues(); 1763226584Sdim for (unsigned i = 0, e = Vals.size(); i != e; ++i) 1764226584Sdim if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName())) 1765226584Sdim OS << Vals[i]; 1766226584Sdim for (unsigned i = 0, e = Vals.size(); i != e; ++i) 1767226584Sdim if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName())) 1768226584Sdim OS << Vals[i]; 1769226584Sdim 1770226584Sdim return OS << "}\n"; 1771226584Sdim} 1772226584Sdim 1773226584Sdim/// getValueInit - Return the initializer for a value with the specified name, 1774243830Sdim/// or abort if the field does not exist. 1775226584Sdim/// 1776226584SdimInit *Record::getValueInit(StringRef FieldName) const { 1777226584Sdim const RecordVal *R = getValue(FieldName); 1778226584Sdim if (R == 0 || R->getValue() == 0) 1779243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1780243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1781226584Sdim return R->getValue(); 1782226584Sdim} 1783226584Sdim 1784226584Sdim 1785226584Sdim/// getValueAsString - This method looks up the specified field and returns its 1786243830Sdim/// value as a string, aborts if the field does not exist or if 1787226584Sdim/// the value is not a string. 1788226584Sdim/// 1789226584Sdimstd::string Record::getValueAsString(StringRef FieldName) const { 1790226584Sdim const RecordVal *R = getValue(FieldName); 1791226584Sdim if (R == 0 || R->getValue() == 0) 1792243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1793243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1794226584Sdim 1795243830Sdim if (StringInit *SI = dyn_cast<StringInit>(R->getValue())) 1796226584Sdim return SI->getValue(); 1797243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1798243830Sdim FieldName.str() + "' does not have a string initializer!"); 1799226584Sdim} 1800226584Sdim 1801226584Sdim/// getValueAsBitsInit - This method looks up the specified field and returns 1802243830Sdim/// its value as a BitsInit, aborts if the field does not exist or if 1803243830Sdim/// the value is not the right type. 1804226584Sdim/// 1805226584SdimBitsInit *Record::getValueAsBitsInit(StringRef FieldName) const { 1806226584Sdim const RecordVal *R = getValue(FieldName); 1807226584Sdim if (R == 0 || R->getValue() == 0) 1808243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1809243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1810226584Sdim 1811243830Sdim if (BitsInit *BI = dyn_cast<BitsInit>(R->getValue())) 1812226584Sdim return BI; 1813243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1814243830Sdim FieldName.str() + "' does not have a BitsInit initializer!"); 1815226584Sdim} 1816226584Sdim 1817226584Sdim/// getValueAsListInit - This method looks up the specified field and returns 1818243830Sdim/// its value as a ListInit, aborting if the field does not exist or if 1819243830Sdim/// the value is not the right type. 1820226584Sdim/// 1821226584SdimListInit *Record::getValueAsListInit(StringRef FieldName) const { 1822226584Sdim const RecordVal *R = getValue(FieldName); 1823226584Sdim if (R == 0 || R->getValue() == 0) 1824243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1825243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1826226584Sdim 1827243830Sdim if (ListInit *LI = dyn_cast<ListInit>(R->getValue())) 1828226584Sdim return LI; 1829243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1830243830Sdim FieldName.str() + "' does not have a list initializer!"); 1831226584Sdim} 1832226584Sdim 1833226584Sdim/// getValueAsListOfDefs - This method looks up the specified field and returns 1834243830Sdim/// its value as a vector of records, aborting if the field does not exist 1835243830Sdim/// or if the value is not the right type. 1836226584Sdim/// 1837226584Sdimstd::vector<Record*> 1838226584SdimRecord::getValueAsListOfDefs(StringRef FieldName) const { 1839226584Sdim ListInit *List = getValueAsListInit(FieldName); 1840226584Sdim std::vector<Record*> Defs; 1841226584Sdim for (unsigned i = 0; i < List->getSize(); i++) { 1842243830Sdim if (DefInit *DI = dyn_cast<DefInit>(List->getElement(i))) { 1843226584Sdim Defs.push_back(DI->getDef()); 1844226584Sdim } else { 1845243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1846243830Sdim FieldName.str() + "' list is not entirely DefInit!"); 1847226584Sdim } 1848226584Sdim } 1849226584Sdim return Defs; 1850226584Sdim} 1851226584Sdim 1852226584Sdim/// getValueAsInt - This method looks up the specified field and returns its 1853243830Sdim/// value as an int64_t, aborting if the field does not exist or if the value 1854243830Sdim/// is not the right type. 1855226584Sdim/// 1856226584Sdimint64_t Record::getValueAsInt(StringRef FieldName) const { 1857226584Sdim const RecordVal *R = getValue(FieldName); 1858226584Sdim if (R == 0 || R->getValue() == 0) 1859243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1860243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1861226584Sdim 1862243830Sdim if (IntInit *II = dyn_cast<IntInit>(R->getValue())) 1863226584Sdim return II->getValue(); 1864243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1865243830Sdim FieldName.str() + "' does not have an int initializer!"); 1866226584Sdim} 1867226584Sdim 1868226584Sdim/// getValueAsListOfInts - This method looks up the specified field and returns 1869243830Sdim/// its value as a vector of integers, aborting if the field does not exist or 1870243830Sdim/// if the value is not the right type. 1871226584Sdim/// 1872226584Sdimstd::vector<int64_t> 1873226584SdimRecord::getValueAsListOfInts(StringRef FieldName) const { 1874226584Sdim ListInit *List = getValueAsListInit(FieldName); 1875226584Sdim std::vector<int64_t> Ints; 1876226584Sdim for (unsigned i = 0; i < List->getSize(); i++) { 1877243830Sdim if (IntInit *II = dyn_cast<IntInit>(List->getElement(i))) { 1878226584Sdim Ints.push_back(II->getValue()); 1879226584Sdim } else { 1880243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1881243830Sdim FieldName.str() + "' does not have a list of ints initializer!"); 1882226584Sdim } 1883226584Sdim } 1884226584Sdim return Ints; 1885226584Sdim} 1886226584Sdim 1887226584Sdim/// getValueAsListOfStrings - This method looks up the specified field and 1888243830Sdim/// returns its value as a vector of strings, aborting if the field does not 1889243830Sdim/// exist or if the value is not the right type. 1890226584Sdim/// 1891226584Sdimstd::vector<std::string> 1892226584SdimRecord::getValueAsListOfStrings(StringRef FieldName) const { 1893226584Sdim ListInit *List = getValueAsListInit(FieldName); 1894226584Sdim std::vector<std::string> Strings; 1895226584Sdim for (unsigned i = 0; i < List->getSize(); i++) { 1896243830Sdim if (StringInit *II = dyn_cast<StringInit>(List->getElement(i))) { 1897226584Sdim Strings.push_back(II->getValue()); 1898226584Sdim } else { 1899243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1900243830Sdim FieldName.str() + "' does not have a list of strings initializer!"); 1901226584Sdim } 1902226584Sdim } 1903226584Sdim return Strings; 1904226584Sdim} 1905226584Sdim 1906226584Sdim/// getValueAsDef - This method looks up the specified field and returns its 1907243830Sdim/// value as a Record, aborting if the field does not exist or if the value 1908243830Sdim/// is not the right type. 1909226584Sdim/// 1910226584SdimRecord *Record::getValueAsDef(StringRef FieldName) const { 1911226584Sdim const RecordVal *R = getValue(FieldName); 1912226584Sdim if (R == 0 || R->getValue() == 0) 1913243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1914243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1915226584Sdim 1916243830Sdim if (DefInit *DI = dyn_cast<DefInit>(R->getValue())) 1917226584Sdim return DI->getDef(); 1918243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1919243830Sdim FieldName.str() + "' does not have a def initializer!"); 1920226584Sdim} 1921226584Sdim 1922226584Sdim/// getValueAsBit - This method looks up the specified field and returns its 1923243830Sdim/// value as a bit, aborting if the field does not exist or if the value is 1924243830Sdim/// not the right type. 1925226584Sdim/// 1926226584Sdimbool Record::getValueAsBit(StringRef FieldName) const { 1927226584Sdim const RecordVal *R = getValue(FieldName); 1928226584Sdim if (R == 0 || R->getValue() == 0) 1929243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1930243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1931226584Sdim 1932243830Sdim if (BitInit *BI = dyn_cast<BitInit>(R->getValue())) 1933226584Sdim return BI->getValue(); 1934243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1935243830Sdim FieldName.str() + "' does not have a bit initializer!"); 1936226584Sdim} 1937226584Sdim 1938243830Sdimbool Record::getValueAsBitOrUnset(StringRef FieldName, bool &Unset) const { 1939243830Sdim const RecordVal *R = getValue(FieldName); 1940243830Sdim if (R == 0 || R->getValue() == 0) 1941243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1942243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1943243830Sdim 1944243830Sdim if (R->getValue() == UnsetInit::get()) { 1945243830Sdim Unset = true; 1946243830Sdim return false; 1947243830Sdim } 1948243830Sdim Unset = false; 1949243830Sdim if (BitInit *BI = dyn_cast<BitInit>(R->getValue())) 1950243830Sdim return BI->getValue(); 1951243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1952243830Sdim FieldName.str() + "' does not have a bit initializer!"); 1953243830Sdim} 1954243830Sdim 1955226584Sdim/// getValueAsDag - This method looks up the specified field and returns its 1956243830Sdim/// value as an Dag, aborting if the field does not exist or if the value is 1957243830Sdim/// not the right type. 1958226584Sdim/// 1959226584SdimDagInit *Record::getValueAsDag(StringRef FieldName) const { 1960226584Sdim const RecordVal *R = getValue(FieldName); 1961226584Sdim if (R == 0 || R->getValue() == 0) 1962243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + 1963243830Sdim "' does not have a field named `" + FieldName.str() + "'!\n"); 1964226584Sdim 1965243830Sdim if (DagInit *DI = dyn_cast<DagInit>(R->getValue())) 1966226584Sdim return DI; 1967243830Sdim PrintFatalError(getLoc(), "Record `" + getName() + "', field `" + 1968243830Sdim FieldName.str() + "' does not have a dag initializer!"); 1969226584Sdim} 1970226584Sdim 1971226584Sdim 1972226584Sdimvoid MultiClass::dump() const { 1973226584Sdim errs() << "Record:\n"; 1974226584Sdim Rec.dump(); 1975226584Sdim 1976226584Sdim errs() << "Defs:\n"; 1977226584Sdim for (RecordVector::const_iterator r = DefPrototypes.begin(), 1978226584Sdim rend = DefPrototypes.end(); 1979226584Sdim r != rend; 1980226584Sdim ++r) { 1981226584Sdim (*r)->dump(); 1982226584Sdim } 1983226584Sdim} 1984226584Sdim 1985226584Sdim 1986226584Sdimvoid RecordKeeper::dump() const { errs() << *this; } 1987226584Sdim 1988226584Sdimraw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) { 1989226584Sdim OS << "------------- Classes -----------------\n"; 1990226584Sdim const std::map<std::string, Record*> &Classes = RK.getClasses(); 1991226584Sdim for (std::map<std::string, Record*>::const_iterator I = Classes.begin(), 1992226584Sdim E = Classes.end(); I != E; ++I) 1993226584Sdim OS << "class " << *I->second; 1994226584Sdim 1995226584Sdim OS << "------------- Defs -----------------\n"; 1996226584Sdim const std::map<std::string, Record*> &Defs = RK.getDefs(); 1997226584Sdim for (std::map<std::string, Record*>::const_iterator I = Defs.begin(), 1998226584Sdim E = Defs.end(); I != E; ++I) 1999226584Sdim OS << "def " << *I->second; 2000226584Sdim return OS; 2001226584Sdim} 2002226584Sdim 2003226584Sdim 2004226584Sdim/// getAllDerivedDefinitions - This method returns all concrete definitions 2005226584Sdim/// that derive from the specified class name. If a class with the specified 2006226584Sdim/// name does not exist, an error is printed and true is returned. 2007226584Sdimstd::vector<Record*> 2008226584SdimRecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const { 2009226584Sdim Record *Class = getClass(ClassName); 2010226584Sdim if (!Class) 2011243830Sdim PrintFatalError("ERROR: Couldn't find the `" + ClassName + "' class!\n"); 2012226584Sdim 2013226584Sdim std::vector<Record*> Defs; 2014226584Sdim for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(), 2015226584Sdim E = getDefs().end(); I != E; ++I) 2016226584Sdim if (I->second->isSubClassOf(Class)) 2017226584Sdim Defs.push_back(I->second); 2018226584Sdim 2019226584Sdim return Defs; 2020226584Sdim} 2021226584Sdim 2022234353Sdim/// QualifyName - Return an Init with a qualifier prefix referring 2023234353Sdim/// to CurRec's name. 2024234353SdimInit *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass, 2025234353Sdim Init *Name, const std::string &Scoper) { 2026243830Sdim RecTy *Type = dyn_cast<TypedInit>(Name)->getType(); 2027234353Sdim 2028234353Sdim BinOpInit *NewName = 2029234353Sdim BinOpInit::get(BinOpInit::STRCONCAT, 2030234353Sdim BinOpInit::get(BinOpInit::STRCONCAT, 2031234353Sdim CurRec.getNameInit(), 2032234353Sdim StringInit::get(Scoper), 2033234353Sdim Type)->Fold(&CurRec, CurMultiClass), 2034234353Sdim Name, 2035234353Sdim Type); 2036234353Sdim 2037234353Sdim if (CurMultiClass && Scoper != "::") { 2038234353Sdim NewName = 2039234353Sdim BinOpInit::get(BinOpInit::STRCONCAT, 2040234353Sdim BinOpInit::get(BinOpInit::STRCONCAT, 2041234353Sdim CurMultiClass->Rec.getNameInit(), 2042234353Sdim StringInit::get("::"), 2043234353Sdim Type)->Fold(&CurRec, CurMultiClass), 2044234353Sdim NewName->Fold(&CurRec, CurMultiClass), 2045234353Sdim Type); 2046234353Sdim } 2047234353Sdim 2048234353Sdim return NewName->Fold(&CurRec, CurMultiClass); 2049234353Sdim} 2050234353Sdim 2051234353Sdim/// QualifyName - Return an Init with a qualifier prefix referring 2052234353Sdim/// to CurRec's name. 2053234353SdimInit *llvm::QualifyName(Record &CurRec, MultiClass *CurMultiClass, 2054234353Sdim const std::string &Name, 2055234353Sdim const std::string &Scoper) { 2056234353Sdim return QualifyName(CurRec, CurMultiClass, StringInit::get(Name), Scoper); 2057234353Sdim} 2058