1 files changed, 0 insertions, 1575 deletions
diff --git a/contrib/llvm/utils/TableGen/Record.cpp b/contrib/llvm/utils/TableGen/Record.cpp
deleted file mode 100644
index 730eca1..0000000
--- a/contrib/llvm/utils/TableGen/Record.cpp
+++ /dev/null
@@ -1,1575 +0,0 @@
-//===- Record.cpp - Record implementation ---------------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// Implement the tablegen record classes.
-//
-//===----------------------------------------------------------------------===//
-
-#include "Record.h"
-#include "Error.h"
-#include "llvm/Support/DataTypes.h"
-#include "llvm/Support/Format.h"
-#include "llvm/ADT/StringExtras.h"
-
-using namespace llvm;
-
-//===----------------------------------------------------------------------===//
-//    Type implementations
-//===----------------------------------------------------------------------===//
-
-void RecTy::dump() const { print(errs()); }
-
-Init *BitRecTy::convertValue(BitsInit *BI) {
-  if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
-  return BI->getBit(0);
-}
-
-bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
-  return RHS->getNumBits() == 1;
-}
-
-Init *BitRecTy::convertValue(IntInit *II) {
-  int64_t Val = II->getValue();
-  if (Val != 0 && Val != 1) return 0;  // Only accept 0 or 1 for a bit!
-
-  return new BitInit(Val != 0);
-}
-
-Init *BitRecTy::convertValue(TypedInit *VI) {
-  if (dynamic_cast<BitRecTy*>(VI->getType()))
-    return VI;  // Accept variable if it is already of bit type!
-  return 0;
-}
-
-std::string BitsRecTy::getAsString() const {
-  return "bits<" + utostr(Size) + ">";
-}
-
-Init *BitsRecTy::convertValue(UnsetInit *UI) {
-  BitsInit *Ret = new BitsInit(Size);
-
-  for (unsigned i = 0; i != Size; ++i)
-    Ret->setBit(i, new UnsetInit());
-  return Ret;
-}
-
-Init *BitsRecTy::convertValue(BitInit *UI) {
-  if (Size != 1) return 0;  // Can only convert single bit.
-  BitsInit *Ret = new BitsInit(1);
-  Ret->setBit(0, UI);
-  return Ret;
-}
-
-/// canFitInBitfield - Return true if the number of bits is large enough to hold
-/// the integer value.
-static bool canFitInBitfield(int64_t Value, unsigned NumBits) {
-  // For example, with NumBits == 4, we permit Values from [-7 .. 15].
-  return (NumBits >= sizeof(Value) * 8) ||
-         (Value >> NumBits == 0) || (Value >> (NumBits-1) == -1);
-}
-
-/// convertValue from Int initializer to bits type: Split the integer up into the
-/// appropriate bits.
-///
-Init *BitsRecTy::convertValue(IntInit *II) {
-  int64_t Value = II->getValue();
-  // Make sure this bitfield is large enough to hold the integer value.
-  if (!canFitInBitfield(Value, Size))
-    return 0;
-
-  BitsInit *Ret = new BitsInit(Size);
-  for (unsigned i = 0; i != Size; ++i)
-    Ret->setBit(i, new BitInit(Value & (1LL << i)));
-
-  return Ret;
-}
-
-Init *BitsRecTy::convertValue(BitsInit *BI) {
-  // If the number of bits is right, return it.  Otherwise we need to expand or
-  // truncate.
-  if (BI->getNumBits() == Size) return BI;
-  return 0;
-}
-
-Init *BitsRecTy::convertValue(TypedInit *VI) {
-  if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
-    if (BRT->Size == Size) {
-      BitsInit *Ret = new BitsInit(Size);
-      for (unsigned i = 0; i != Size; ++i)
-        Ret->setBit(i, new VarBitInit(VI, i));
-      return Ret;
-    }
-
-  if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
-    BitsInit *Ret = new BitsInit(1);
-    Ret->setBit(0, VI);
-    return Ret;
-  }
-
-  if (TernOpInit *Tern = dynamic_cast<TernOpInit*>(VI)) {
-    if (Tern->getOpcode() == TernOpInit::IF) {
-      Init *LHS = Tern->getLHS();
-      Init *MHS = Tern->getMHS();
-      Init *RHS = Tern->getRHS();
-
-      IntInit *MHSi = dynamic_cast<IntInit*>(MHS);
-      IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
-
-      if (MHSi && RHSi) {
-        int64_t MHSVal = MHSi->getValue();
-        int64_t RHSVal = RHSi->getValue();
-
-        if (canFitInBitfield(MHSVal, Size) && canFitInBitfield(RHSVal, Size)) {
-          BitsInit *Ret = new BitsInit(Size);
-
-          for (unsigned i = 0; i != Size; ++i)
-            Ret->setBit(i, new TernOpInit(TernOpInit::IF, LHS,
-                                          new IntInit((MHSVal & (1LL << i)) ? 1 : 0),
-                                          new IntInit((RHSVal & (1LL << i)) ? 1 : 0),
-                                          VI->getType()));
-
-          return Ret;
-        }
-      } else {
-        BitsInit *MHSbs = dynamic_cast<BitsInit*>(MHS);
-        BitsInit *RHSbs = dynamic_cast<BitsInit*>(RHS);
-
-        if (MHSbs && RHSbs) {
-          BitsInit *Ret = new BitsInit(Size);
-
-          for (unsigned i = 0; i != Size; ++i)
-            Ret->setBit(i, new TernOpInit(TernOpInit::IF, LHS,
-                                          MHSbs->getBit(i),
-                                          RHSbs->getBit(i),
-                                          VI->getType()));
-
-          return Ret;
-        }
-      }
-    }
-  }
-
-  return 0;
-}
-
-Init *IntRecTy::convertValue(BitInit *BI) {
-  return new IntInit(BI->getValue());
-}
-
-Init *IntRecTy::convertValue(BitsInit *BI) {
-  int64_t Result = 0;
-  for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
-    if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
-      Result |= Bit->getValue() << i;
-    } else {
-      return 0;
-    }
-  return new IntInit(Result);
-}
-
-Init *IntRecTy::convertValue(TypedInit *TI) {
-  if (TI->getType()->typeIsConvertibleTo(this))
-    return TI;  // Accept variable if already of the right type!
-  return 0;
-}
-
-Init *StringRecTy::convertValue(UnOpInit *BO) {
-  if (BO->getOpcode() == UnOpInit::CAST) {
-    Init *L = BO->getOperand()->convertInitializerTo(this);
-    if (L == 0) return 0;
-    if (L != BO->getOperand())
-      return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
-    return BO;
-  }
-
-  return convertValue((TypedInit*)BO);
-}
-
-Init *StringRecTy::convertValue(BinOpInit *BO) {
-  if (BO->getOpcode() == BinOpInit::STRCONCAT) {
-    Init *L = BO->getLHS()->convertInitializerTo(this);
-    Init *R = BO->getRHS()->convertInitializerTo(this);
-    if (L == 0 || R == 0) return 0;
-    if (L != BO->getLHS() || R != BO->getRHS())
-      return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
-    return BO;
-  }
-
-  return convertValue((TypedInit*)BO);
-}
-
-
-Init *StringRecTy::convertValue(TypedInit *TI) {
-  if (dynamic_cast<StringRecTy*>(TI->getType()))
-    return TI;  // Accept variable if already of the right type!
-  return 0;
-}
-
-std::string ListRecTy::getAsString() const {
-  return "list<" + Ty->getAsString() + ">";
-}
-
-Init *ListRecTy::convertValue(ListInit *LI) {
-  std::vector<Init*> Elements;
-
-  // Verify that all of the elements of the list are subclasses of the
-  // appropriate class!
-  for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
-    if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
-      Elements.push_back(CI);
-    else
-      return 0;
-
-  ListRecTy *LType = dynamic_cast<ListRecTy*>(LI->getType());
-  if (LType == 0) {
-    return 0;
-  }
-
-  return new ListInit(Elements, new ListRecTy(Ty));
-}
-
-Init *ListRecTy::convertValue(TypedInit *TI) {
-  // Ensure that TI is compatible with our class.
-  if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
-    if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
-      return TI;
-  return 0;
-}
-
-Init *CodeRecTy::convertValue(TypedInit *TI) {
-  if (TI->getType()->typeIsConvertibleTo(this))
-    return TI;
-  return 0;
-}
-
-Init *DagRecTy::convertValue(TypedInit *TI) {
-  if (TI->getType()->typeIsConvertibleTo(this))
-    return TI;
-  return 0;
-}
-
-Init *DagRecTy::convertValue(UnOpInit *BO) {
-  if (BO->getOpcode() == UnOpInit::CAST) {
-    Init *L = BO->getOperand()->convertInitializerTo(this);
-    if (L == 0) return 0;
-    if (L != BO->getOperand())
-      return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
-    return BO;
-  }
-  return 0;
-}
-
-Init *DagRecTy::convertValue(BinOpInit *BO) {
-  if (BO->getOpcode() == BinOpInit::CONCAT) {
-    Init *L = BO->getLHS()->convertInitializerTo(this);
-    Init *R = BO->getRHS()->convertInitializerTo(this);
-    if (L == 0 || R == 0) return 0;
-    if (L != BO->getLHS() || R != BO->getRHS())
-      return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
-    return BO;
-  }
-  return 0;
-}
-
-std::string RecordRecTy::getAsString() const {
-  return Rec->getName();
-}
-
-Init *RecordRecTy::convertValue(DefInit *DI) {
-  // Ensure that DI is a subclass of Rec.
-  if (!DI->getDef()->isSubClassOf(Rec))
-    return 0;
-  return DI;
-}
-
-Init *RecordRecTy::convertValue(TypedInit *TI) {
-  // Ensure that TI is compatible with Rec.
-  if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
-    if (RRT->getRecord()->isSubClassOf(getRecord()) ||
-        RRT->getRecord() == getRecord())
-      return TI;
-  return 0;
-}
-
-bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
-  if (Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec))
-    return true;
-
-  const std::vector<Record*> &SC = Rec->getSuperClasses();
-  for (unsigned i = 0, e = SC.size(); i != e; ++i)
-    if (RHS->getRecord()->isSubClassOf(SC[i]))
-      return true;
-
-  return false;
-}
-
-
-/// resolveTypes - Find a common type that T1 and T2 convert to.
-/// Return 0 if no such type exists.
-///
-RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
-  if (!T1->typeIsConvertibleTo(T2)) {
-    if (!T2->typeIsConvertibleTo(T1)) {
-      // If one is a Record type, check superclasses
-      RecordRecTy *RecTy1 = dynamic_cast<RecordRecTy*>(T1);
-      if (RecTy1) {
-        // See if T2 inherits from a type T1 also inherits from
-        const std::vector<Record *> &T1SuperClasses =
-          RecTy1->getRecord()->getSuperClasses();
-        for(std::vector<Record *>::const_iterator i = T1SuperClasses.begin(),
-              iend = T1SuperClasses.end();
-            i != iend;
-            ++i) {
-          RecordRecTy *SuperRecTy1 = new RecordRecTy(*i);
-          RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
-          if (NewType1 != 0) {
-            if (NewType1 != SuperRecTy1) {
-              delete SuperRecTy1;
-            }
-            return NewType1;
-          }
-        }
-      }
-      RecordRecTy *RecTy2 = dynamic_cast<RecordRecTy*>(T2);
-      if (RecTy2) {
-        // See if T1 inherits from a type T2 also inherits from
-        const std::vector<Record *> &T2SuperClasses =
-          RecTy2->getRecord()->getSuperClasses();
-        for (std::vector<Record *>::const_iterator i = T2SuperClasses.begin(),
-              iend = T2SuperClasses.end();
-            i != iend;
-            ++i) {
-          RecordRecTy *SuperRecTy2 = new RecordRecTy(*i);
-          RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
-          if (NewType2 != 0) {
-            if (NewType2 != SuperRecTy2) {
-              delete SuperRecTy2;
-            }
-            return NewType2;
-          }
-        }
-      }
-      return 0;
-    }
-    return T2;
-  }
-  return T1;
-}
-
-
-//===----------------------------------------------------------------------===//
-//    Initializer implementations
-//===----------------------------------------------------------------------===//
-
-void Init::dump() const { return print(errs()); }
-
-Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
-  BitsInit *BI = new BitsInit(Bits.size());
-  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
-    if (Bits[i] >= getNumBits()) {
-      delete BI;
-      return 0;
-    }
-    BI->setBit(i, getBit(Bits[i]));
-  }
-  return BI;
-}
-
-std::string BitsInit::getAsString() const {
-  std::string Result = "{ ";
-  for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
-    if (i) Result += ", ";
-    if (Init *Bit = getBit(e-i-1))
-      Result += Bit->getAsString();
-    else
-      Result += "*";
-  }
-  return Result + " }";
-}
-
-// resolveReferences - If there are any field references that refer to fields
-// that have been filled in, we can propagate the values now.
-//
-Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) {
-  bool Changed = false;
-  BitsInit *New = new BitsInit(getNumBits());
-
-  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
-    Init *B;
-    Init *CurBit = getBit(i);
-
-    do {
-      B = CurBit;
-      CurBit = CurBit->resolveReferences(R, RV);
-      Changed |= B != CurBit;
-    } while (B != CurBit);
-    New->setBit(i, CurBit);
-  }
-
-  if (Changed)
-    return New;
-  delete New;
-  return this;
-}
-
-std::string IntInit::getAsString() const {
-  return itostr(Value);
-}
-
-Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
-  BitsInit *BI = new BitsInit(Bits.size());
-
-  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
-    if (Bits[i] >= 64) {
-      delete BI;
-      return 0;
-    }
-    BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
-  }
-  return BI;
-}
-
-Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
-  std::vector<Init*> Vals;
-  for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
-    if (Elements[i] >= getSize())
-      return 0;
-    Vals.push_back(getElement(Elements[i]));
-  }
-  return new ListInit(Vals, getType());
-}
-
-Record *ListInit::getElementAsRecord(unsigned i) const {
-  assert(i < Values.size() && "List element index out of range!");
-  DefInit *DI = dynamic_cast<DefInit*>(Values[i]);
-  if (DI == 0) throw "Expected record in list!";
-  return DI->getDef();
-}
-
-Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) {
-  std::vector<Init*> Resolved;
-  Resolved.reserve(getSize());
-  bool Changed = false;
-
-  for (unsigned i = 0, e = getSize(); i != e; ++i) {
-    Init *E;
-    Init *CurElt = getElement(i);
-
-    do {
-      E = CurElt;
-      CurElt = CurElt->resolveReferences(R, RV);
-      Changed |= E != CurElt;
-    } while (E != CurElt);
-    Resolved.push_back(E);
-  }
-
-  if (Changed)
-    return new ListInit(Resolved, getType());
-  return this;
-}
-
-Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV,
-                                            unsigned Elt) {
-  if (Elt >= getSize())
-    return 0;  // Out of range reference.
-  Init *E = getElement(Elt);
-  // If the element is set to some value, or if we are resolving a reference
-  // to a specific variable and that variable is explicitly unset, then
-  // replace the VarListElementInit with it.
-  if (IRV || !dynamic_cast<UnsetInit*>(E))
-    return E;
-  return 0;
-}
-
-std::string ListInit::getAsString() const {
-  std::string Result = "[";
-  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
-    if (i) Result += ", ";
-    Result += Values[i]->getAsString();
-  }
-  return Result + "]";
-}
-
-Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
-                                  unsigned Bit) {
-  Init *Folded = Fold(&R, 0);
-
-  if (Folded != this) {
-    TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
-    if (Typed) {
-      return Typed->resolveBitReference(R, IRV, Bit);
-    }
-  }
-
-  return 0;
-}
-
-Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
-                                          unsigned Elt) {
-  Init *Folded = Fold(&R, 0);
-
-  if (Folded != this) {
-    TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
-    if (Typed) {
-      return Typed->resolveListElementReference(R, IRV, Elt);
-    }
-  }
-
-  return 0;
-}
-
-Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
-  switch (getOpcode()) {
-  default: assert(0 && "Unknown unop");
-  case CAST: {
-    if (getType()->getAsString() == "string") {
-      StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-      if (LHSs) {
-        return LHSs;
-      }
-
-      DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
-      if (LHSd) {
-        return new StringInit(LHSd->getDef()->getName());
-      }
-    } else {
-      StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-      if (LHSs) {
-        std::string Name = LHSs->getValue();
-
-        // From TGParser::ParseIDValue
-        if (CurRec) {
-          if (const RecordVal *RV = CurRec->getValue(Name)) {
-            if (RV->getType() != getType())
-              throw "type mismatch in cast";
-            return new VarInit(Name, RV->getType());
-          }
-
-          std::string TemplateArgName = CurRec->getName()+":"+Name;
-          if (CurRec->isTemplateArg(TemplateArgName)) {
-            const RecordVal *RV = CurRec->getValue(TemplateArgName);
-            assert(RV && "Template arg doesn't exist??");
-
-            if (RV->getType() != getType())
-              throw "type mismatch in cast";
-
-            return new VarInit(TemplateArgName, RV->getType());
-          }
-        }
-
-        if (CurMultiClass) {
-          std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
-          if (CurMultiClass->Rec.isTemplateArg(MCName)) {
-            const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
-            assert(RV && "Template arg doesn't exist??");
-
-            if (RV->getType() != getType())
-              throw "type mismatch in cast";
-
-            return new VarInit(MCName, RV->getType());
-          }
-        }
-
-        if (Record *D = (CurRec->getRecords()).getDef(Name))
-          return new DefInit(D);
-
-        throw TGError(CurRec->getLoc(), "Undefined reference:'" + Name + "'\n");
-      }
-    }
-    break;
-  }
-  case HEAD: {
-    ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
-    if (LHSl) {
-      if (LHSl->getSize() == 0) {
-        assert(0 && "Empty list in car");
-        return 0;
-      }
-      return LHSl->getElement(0);
-    }
-    break;
-  }
-  case TAIL: {
-    ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
-    if (LHSl) {
-      if (LHSl->getSize() == 0) {
-        assert(0 && "Empty list in cdr");
-        return 0;
-      }
-      ListInit *Result = new ListInit(LHSl->begin()+1, LHSl->end(),
-                                      LHSl->getType());
-      return Result;
-    }
-    break;
-  }
-  case EMPTY: {
-    ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
-    if (LHSl) {
-      if (LHSl->getSize() == 0) {
-        return new IntInit(1);
-      } else {
-        return new IntInit(0);
-      }
-    }
-    StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-    if (LHSs) {
-      if (LHSs->getValue().empty()) {
-        return new IntInit(1);
-      } else {
-        return new IntInit(0);
-      }
-    }
-
-    break;
-  }
-  }
-  return this;
-}
-
-Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
-  Init *lhs = LHS->resolveReferences(R, RV);
-
-  if (LHS != lhs)
-    return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
-  return Fold(&R, 0);
-}
-
-std::string UnOpInit::getAsString() const {
-  std::string Result;
-  switch (Opc) {
-  case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
-  case HEAD: Result = "!head"; break;
-  case TAIL: Result = "!tail"; break;
-  case EMPTY: Result = "!empty"; break;
-  }
-  return Result + "(" + LHS->getAsString() + ")";
-}
-
-Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
-  switch (getOpcode()) {
-  default: assert(0 && "Unknown binop");
-  case CONCAT: {
-    DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
-    DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
-    if (LHSs && RHSs) {
-      DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
-      DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
-      if (LOp == 0 || ROp == 0 || LOp->getDef() != ROp->getDef())
-        throw "Concated Dag operators do not match!";
-      std::vector<Init*> Args;
-      std::vector<std::string> ArgNames;
-      for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
-        Args.push_back(LHSs->getArg(i));
-        ArgNames.push_back(LHSs->getArgName(i));
-      }
-      for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
-        Args.push_back(RHSs->getArg(i));
-        ArgNames.push_back(RHSs->getArgName(i));
-      }
-      return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
-    }
-    break;
-  }
-  case STRCONCAT: {
-    StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-    StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
-    if (LHSs && RHSs)
-      return new StringInit(LHSs->getValue() + RHSs->getValue());
-    break;
-  }
-  case EQ: {
-    // try to fold eq comparison for 'bit' and 'int', otherwise fallback
-    // to string objects.
-    IntInit* L =
-      dynamic_cast<IntInit*>(LHS->convertInitializerTo(new IntRecTy()));
-    IntInit* R =
-      dynamic_cast<IntInit*>(RHS->convertInitializerTo(new IntRecTy()));
-
-    if (L && R)
-      return new IntInit(L->getValue() == R->getValue());
-
-    StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-    StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
-
-    // Make sure we've resolved
-    if (LHSs && RHSs)
-      return new IntInit(LHSs->getValue() == RHSs->getValue());
-
-    break;
-  }
-  case SHL:
-  case SRA:
-  case SRL: {
-    IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
-    IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
-    if (LHSi && RHSi) {
-      int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
-      int64_t Result;
-      switch (getOpcode()) {
-      default: assert(0 && "Bad opcode!");
-      case SHL: Result = LHSv << RHSv; break;
-      case SRA: Result = LHSv >> RHSv; break;
-      case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
-      }
-      return new IntInit(Result);
-    }
-    break;
-  }
-  }
-  return this;
-}
-
-Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
-  Init *lhs = LHS->resolveReferences(R, RV);
-  Init *rhs = RHS->resolveReferences(R, RV);
-
-  if (LHS != lhs || RHS != rhs)
-    return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
-  return Fold(&R, 0);
-}
-
-std::string BinOpInit::getAsString() const {
-  std::string Result;
-  switch (Opc) {
-  case CONCAT: Result = "!con"; break;
-  case SHL: Result = "!shl"; break;
-  case SRA: Result = "!sra"; break;
-  case SRL: Result = "!srl"; break;
-  case EQ: Result = "!eq"; break;
-  case STRCONCAT: Result = "!strconcat"; break;
-  }
-  return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
-}
-
-static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
-                           Record *CurRec, MultiClass *CurMultiClass);
-
-static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
-                               RecTy *Type, Record *CurRec,
-                               MultiClass *CurMultiClass) {
-  std::vector<Init *> NewOperands;
-
-  TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
-
-  // If this is a dag, recurse
-  if (TArg && TArg->getType()->getAsString() == "dag") {
-    Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
-                                 CurRec, CurMultiClass);
-    if (Result != 0) {
-      return Result;
-    } else {
-      return 0;
-    }
-  }
-
-  for (int i = 0; i < RHSo->getNumOperands(); ++i) {
-    OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
-
-    if (RHSoo) {
-      Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
-                                       Type, CurRec, CurMultiClass);
-      if (Result != 0) {
-        NewOperands.push_back(Result);
-      } else {
-        NewOperands.push_back(Arg);
-      }
-    } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
-      NewOperands.push_back(Arg);
-    } else {
-      NewOperands.push_back(RHSo->getOperand(i));
-    }
-  }
-
-  // Now run the operator and use its result as the new leaf
-  OpInit *NewOp = RHSo->clone(NewOperands);
-  Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
-  if (NewVal != NewOp) {
-    delete NewOp;
-    return NewVal;
-  }
-  return 0;
-}
-
-static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
-                           Record *CurRec, MultiClass *CurMultiClass) {
-  DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
-  ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
-
-  DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
-  ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
-
-  OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
-
-  if (!RHSo) {
-    throw TGError(CurRec->getLoc(), "!foreach requires an operator\n");
-  }
-
-  TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
-
-  if (!LHSt) {
-    throw TGError(CurRec->getLoc(), "!foreach requires typed variable\n");
-  }
-
-  if ((MHSd && DagType) || (MHSl && ListType)) {
-    if (MHSd) {
-      Init *Val = MHSd->getOperator();
-      Init *Result = EvaluateOperation(RHSo, LHS, Val,
-                                       Type, CurRec, CurMultiClass);
-      if (Result != 0) {
-        Val = Result;
-      }
-
-      std::vector<std::pair<Init *, std::string> > args;
-      for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
-        Init *Arg;
-        std::string ArgName;
-        Arg = MHSd->getArg(i);
-        ArgName = MHSd->getArgName(i);
-
-        // Process args
-        Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
-                                         CurRec, CurMultiClass);
-        if (Result != 0) {
-          Arg = Result;
-        }
-
-        // TODO: Process arg names
-        args.push_back(std::make_pair(Arg, ArgName));
-      }
-
-      return new DagInit(Val, "", args);
-    }
-    if (MHSl) {
-      std::vector<Init *> NewOperands;
-      std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
-
-      for (ListInit::iterator li = NewList.begin(),
-             liend = NewList.end();
-           li != liend;
-           ++li) {
-        Init *Item = *li;
-        NewOperands.clear();
-        for(int i = 0; i < RHSo->getNumOperands(); ++i) {
-          // First, replace the foreach variable with the list item
-          if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
-            NewOperands.push_back(Item);
-          } else {
-            NewOperands.push_back(RHSo->getOperand(i));
-          }
-        }
-
-        // Now run the operator and use its result as the new list item
-        OpInit *NewOp = RHSo->clone(NewOperands);
-        Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
-        if (NewItem != NewOp) {
-          *li = NewItem;
-          delete NewOp;
-        }
-      }
-      return new ListInit(NewList, MHSl->getType());
-    }
-  }
-  return 0;
-}
-
-Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
-  switch (getOpcode()) {
-  default: assert(0 && "Unknown binop");
-  case SUBST: {
-    DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
-    VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
-    StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
-
-    DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
-    VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
-    StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
-
-    DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
-    VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
-    StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
-
-    if ((LHSd && MHSd && RHSd)
-        || (LHSv && MHSv && RHSv)
-        || (LHSs && MHSs && RHSs)) {
-      if (RHSd) {
-        Record *Val = RHSd->getDef();
-        if (LHSd->getAsString() == RHSd->getAsString()) {
-          Val = MHSd->getDef();
-        }
-        return new DefInit(Val);
-      }
-      if (RHSv) {
-        std::string Val = RHSv->getName();
-        if (LHSv->getAsString() == RHSv->getAsString()) {
-          Val = MHSv->getName();
-        }
-        return new VarInit(Val, getType());
-      }
-      if (RHSs) {
-        std::string Val = RHSs->getValue();
-
-        std::string::size_type found;
-        std::string::size_type idx = 0;
-        do {
-          found = Val.find(LHSs->getValue(), idx);
-          if (found != std::string::npos) {
-            Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
-          }
-          idx = found +  MHSs->getValue().size();
-        } while (found != std::string::npos);
-
-        return new StringInit(Val);
-      }
-    }
-    break;
-  }
-
-  case FOREACH: {
-    Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
-                                 CurRec, CurMultiClass);
-    if (Result != 0) {
-      return Result;
-    }
-    break;
-  }
-
-  case IF: {
-    IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
-    if (Init *I = LHS->convertInitializerTo(new IntRecTy()))
-      LHSi = dynamic_cast<IntInit*>(I);
-    if (LHSi) {
-      if (LHSi->getValue()) {
-        return MHS;
-      } else {
-        return RHS;
-      }
-    }
-    break;
-  }
-  }
-
-  return this;
-}
-
-Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
-  Init *lhs = LHS->resolveReferences(R, RV);
-
-  if (Opc == IF && lhs != LHS) {
-    IntInit *Value = dynamic_cast<IntInit*>(lhs);
-    if (Init *I = lhs->convertInitializerTo(new IntRecTy()))
-      Value = dynamic_cast<IntInit*>(I);
-    if (Value != 0) {
-      // Short-circuit
-      if (Value->getValue()) {
-        Init *mhs = MHS->resolveReferences(R, RV);
-        return (new TernOpInit(getOpcode(), lhs, mhs,
-                               RHS, getType()))->Fold(&R, 0);
-      } else {
-        Init *rhs = RHS->resolveReferences(R, RV);
-        return (new TernOpInit(getOpcode(), lhs, MHS,
-                               rhs, getType()))->Fold(&R, 0);
-      }
-    }
-  }
-
-  Init *mhs = MHS->resolveReferences(R, RV);
-  Init *rhs = RHS->resolveReferences(R, RV);
-
-  if (LHS != lhs || MHS != mhs || RHS != rhs)
-    return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
-  return Fold(&R, 0);
-}
-
-std::string TernOpInit::getAsString() const {
-  std::string Result;
-  switch (Opc) {
-  case SUBST: Result = "!subst"; break;
-  case FOREACH: Result = "!foreach"; break;
-  case IF: Result = "!if"; break;
- }
-  return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
-    + RHS->getAsString() + ")";
-}
-
-RecTy *TypedInit::getFieldType(const std::string &FieldName) const {
-  RecordRecTy *RecordType = dynamic_cast<RecordRecTy *>(getType());
-  if (RecordType) {
-    RecordVal *Field = RecordType->getRecord()->getValue(FieldName);
-    if (Field) {
-      return Field->getType();
-    }
-  }
-  return 0;
-}
-
-Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
-  BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
-  if (T == 0) return 0;  // Cannot subscript a non-bits variable.
-  unsigned NumBits = T->getNumBits();
-
-  BitsInit *BI = new BitsInit(Bits.size());
-  for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
-    if (Bits[i] >= NumBits) {
-      delete BI;
-      return 0;
-    }
-    BI->setBit(i, new VarBitInit(this, Bits[i]));
-  }
-  return BI;
-}
-
-Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
-  ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
-  if (T == 0) return 0;  // Cannot subscript a non-list variable.
-
-  if (Elements.size() == 1)
-    return new VarListElementInit(this, Elements[0]);
-
-  std::vector<Init*> ListInits;
-  ListInits.reserve(Elements.size());
-  for (unsigned i = 0, e = Elements.size(); i != e; ++i)
-    ListInits.push_back(new VarListElementInit(this, Elements[i]));
-  return new ListInit(ListInits, T);
-}
-
-
-Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV,
-                                   unsigned Bit) {
-  if (R.isTemplateArg(getName())) return 0;
-  if (IRV && IRV->getName() != getName()) return 0;
-
-  RecordVal *RV = R.getValue(getName());
-  assert(RV && "Reference to a non-existent variable?");
-  assert(dynamic_cast<BitsInit*>(RV->getValue()));
-  BitsInit *BI = (BitsInit*)RV->getValue();
-
-  assert(Bit < BI->getNumBits() && "Bit reference out of range!");
-  Init *B = BI->getBit(Bit);
-
-  // If the bit is set to some value, or if we are resolving a reference to a
-  // specific variable and that variable is explicitly unset, then replace the
-  // VarBitInit with it.
-  if (IRV || !dynamic_cast<UnsetInit*>(B))
-    return B;
-  return 0;
-}
-
-Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV,
-                                           unsigned Elt) {
-  if (R.isTemplateArg(getName())) return 0;
-  if (IRV && IRV->getName() != getName()) return 0;
-
-  RecordVal *RV = R.getValue(getName());
-  assert(RV && "Reference to a non-existent variable?");
-  ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
-  if (!LI) {
-    VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
-    assert(VI && "Invalid list element!");
-    return new VarListElementInit(VI, Elt);
-  }
-
-  if (Elt >= LI->getSize())
-    return 0;  // Out of range reference.
-  Init *E = LI->getElement(Elt);
-  // If the element is set to some value, or if we are resolving a reference
-  // to a specific variable and that variable is explicitly unset, then
-  // replace the VarListElementInit with it.
-  if (IRV || !dynamic_cast<UnsetInit*>(E))
-    return E;
-  return 0;
-}
-
-
-RecTy *VarInit::getFieldType(const std::string &FieldName) const {
-  if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
-    if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
-      return RV->getType();
-  return 0;
-}
-
-Init *VarInit::getFieldInit(Record &R, const RecordVal *RV,
-                            const std::string &FieldName) const {
-  if (dynamic_cast<RecordRecTy*>(getType()))
-    if (const RecordVal *Val = R.getValue(VarName)) {
-      if (RV != Val && (RV || dynamic_cast<UnsetInit*>(Val->getValue())))
-        return 0;
-      Init *TheInit = Val->getValue();
-      assert(TheInit != this && "Infinite loop detected!");
-      if (Init *I = TheInit->getFieldInit(R, RV, FieldName))
-        return I;
-      else
-        return 0;
-    }
-  return 0;
-}
-
-/// resolveReferences - This method is used by classes that refer to other
-/// variables which may not be defined at the time the expression is formed.
-/// If a value is set for the variable later, this method will be called on
-/// users of the value to allow the value to propagate out.
-///
-Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) {
-  if (RecordVal *Val = R.getValue(VarName))
-    if (RV == Val || (RV == 0 && !dynamic_cast<UnsetInit*>(Val->getValue())))
-      return Val->getValue();
-  return this;
-}
-
-std::string VarBitInit::getAsString() const {
-   return TI->getAsString() + "{" + utostr(Bit) + "}";
-}
-
-Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) {
-  if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum()))
-    return I;
-  return this;
-}
-
-std::string VarListElementInit::getAsString() const {
-  return TI->getAsString() + "[" + utostr(Element) + "]";
-}
-
-Init *VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) {
-  if (Init *I = getVariable()->resolveListElementReference(R, RV,
-                                                           getElementNum()))
-    return I;
-  return this;
-}
-
-Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV,
-                                              unsigned Bit) {
-  // FIXME: This should be implemented, to support references like:
-  // bit B = AA[0]{1};
-  return 0;
-}
-
-Init *VarListElementInit::
-resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) {
-  // FIXME: This should be implemented, to support references like:
-  // int B = AA[0][1];
-  return 0;
-}
-
-RecTy *DefInit::getFieldType(const std::string &FieldName) const {
-  if (const RecordVal *RV = Def->getValue(FieldName))
-    return RV->getType();
-  return 0;
-}
-
-Init *DefInit::getFieldInit(Record &R, const RecordVal *RV,
-                            const std::string &FieldName) const {
-  return Def->getValue(FieldName)->getValue();
-}
-
-
-std::string DefInit::getAsString() const {
-  return Def->getName();
-}
-
-Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
-                                     unsigned Bit) {
-  if (Init *BitsVal = Rec->getFieldInit(R, RV, FieldName))
-    if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
-      assert(Bit < BI->getNumBits() && "Bit reference out of range!");
-      Init *B = BI->getBit(Bit);
-
-      if (dynamic_cast<BitInit*>(B))  // If the bit is set.
-        return B;                     // Replace the VarBitInit with it.
-    }
-  return 0;
-}
-
-Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
-                                             unsigned Elt) {
-  if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName))
-    if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
-      if (Elt >= LI->getSize()) return 0;
-      Init *E = LI->getElement(Elt);
-
-      // If the element is set to some value, or if we are resolving a
-      // reference to a specific variable and that variable is explicitly
-      // unset, then replace the VarListElementInit with it.
-      if (RV || !dynamic_cast<UnsetInit*>(E))
-        return E;
-    }
-  return 0;
-}
-
-Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
-  Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
-
-  Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName);
-  if (BitsVal) {
-    Init *BVR = BitsVal->resolveReferences(R, RV);
-    return BVR->isComplete() ? BVR : this;
-  }
-
-  if (NewRec != Rec) {
-    return new FieldInit(NewRec, FieldName);
-  }
-  return this;
-}
-
-Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) {
-  std::vector<Init*> NewArgs;
-  for (unsigned i = 0, e = Args.size(); i != e; ++i)
-    NewArgs.push_back(Args[i]->resolveReferences(R, RV));
-
-  Init *Op = Val->resolveReferences(R, RV);
-
-  if (Args != NewArgs || Op != Val)
-    return new DagInit(Op, ValName, NewArgs, ArgNames);
-
-  return this;
-}
-
-
-std::string DagInit::getAsString() const {
-  std::string Result = "(" + Val->getAsString();
-  if (!ValName.empty())
-    Result += ":" + ValName;
-  if (Args.size()) {
-    Result += " " + Args[0]->getAsString();
-    if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
-    for (unsigned i = 1, e = Args.size(); i != e; ++i) {
-      Result += ", " + Args[i]->getAsString();
-      if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
-    }
-  }
-  return Result + ")";
-}
-
-
-//===----------------------------------------------------------------------===//
-//    Other implementations
-//===----------------------------------------------------------------------===//
-
-RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
-  : Name(N), Ty(T), Prefix(P) {
-  Value = Ty->convertValue(new UnsetInit());
-  assert(Value && "Cannot create unset value for current type!");
-}
-
-void RecordVal::dump() const { errs() << *this; }
-
-void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
-  if (getPrefix()) OS << "field ";
-  OS << *getType() << " " << getName();
-
-  if (getValue())
-    OS << " = " << *getValue();
-
-  if (PrintSem) OS << ";\n";
-}
-
-unsigned Record::LastID = 0;
-
-void Record::setName(const std::string &Name) {
-  if (TrackedRecords.getDef(getName()) == this) {
-    TrackedRecords.removeDef(getName());
-    this->Name = Name;
-    TrackedRecords.addDef(this);
-  } else {
-    TrackedRecords.removeClass(getName());
-    this->Name = Name;
-    TrackedRecords.addClass(this);
-  }
-}
-
-/// resolveReferencesTo - If anything in this record refers to RV, replace the
-/// reference to RV with the RHS of RV.  If RV is null, we resolve all possible
-/// references.
-void Record::resolveReferencesTo(const RecordVal *RV) {
-  for (unsigned i = 0, e = Values.size(); i != e; ++i) {
-    if (Init *V = Values[i].getValue())
-      Values[i].setValue(V->resolveReferences(*this, RV));
-  }
-}
-
-void Record::dump() const { errs() << *this; }
-
-raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) {
-  OS << R.getName();
-
-  const std::vector<std::string> &TArgs = R.getTemplateArgs();
-  if (!TArgs.empty()) {
-    OS << "<";
-    for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
-      if (i) OS << ", ";
-      const RecordVal *RV = R.getValue(TArgs[i]);
-      assert(RV && "Template argument record not found??");
-      RV->print(OS, false);
-    }
-    OS << ">";
-  }
-
-  OS << " {";
-  const std::vector<Record*> &SC = R.getSuperClasses();
-  if (!SC.empty()) {
-    OS << "\t//";
-    for (unsigned i = 0, e = SC.size(); i != e; ++i)
-      OS << " " << SC[i]->getName();
-  }
-  OS << "\n";
-
-  const std::vector<RecordVal> &Vals = R.getValues();
-  for (unsigned i = 0, e = Vals.size(); i != e; ++i)
-    if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
-      OS << Vals[i];
-  for (unsigned i = 0, e = Vals.size(); i != e; ++i)
-    if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
-      OS << Vals[i];
-
-  return OS << "}\n";
-}
-
-/// getValueInit - Return the initializer for a value with the specified name,
-/// or throw an exception if the field does not exist.
-///
-Init *Record::getValueInit(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-      FieldName.str() + "'!\n";
-  return R->getValue();
-}
-
-
-/// getValueAsString - This method looks up the specified field and returns its
-/// value as a string, throwing an exception if the field does not exist or if
-/// the value is not a string.
-///
-std::string Record::getValueAsString(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-          FieldName.str() + "'!\n";
-
-  if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
-    return SI->getValue();
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a string initializer!";
-}
-
-/// getValueAsBitsInit - This method looks up the specified field and returns
-/// its value as a BitsInit, throwing an exception if the field does not exist
-/// or if the value is not the right type.
-///
-BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-          FieldName.str() + "'!\n";
-
-  if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
-    return BI;
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a BitsInit initializer!";
-}
-
-/// getValueAsListInit - This method looks up the specified field and returns
-/// its value as a ListInit, throwing an exception if the field does not exist
-/// or if the value is not the right type.
-///
-ListInit *Record::getValueAsListInit(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-          FieldName.str() + "'!\n";
-
-  if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
-    return LI;
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a list initializer!";
-}
-
-/// getValueAsListOfDefs - This method looks up the specified field and returns
-/// its value as a vector of records, throwing an exception if the field does
-/// not exist or if the value is not the right type.
-///
-std::vector<Record*>
-Record::getValueAsListOfDefs(StringRef FieldName) const {
-  ListInit *List = getValueAsListInit(FieldName);
-  std::vector<Record*> Defs;
-  for (unsigned i = 0; i < List->getSize(); i++) {
-    if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
-      Defs.push_back(DI->getDef());
-    } else {
-      throw "Record `" + getName() + "', field `" + FieldName.str() +
-            "' list is not entirely DefInit!";
-    }
-  }
-  return Defs;
-}
-
-/// getValueAsInt - This method looks up the specified field and returns its
-/// value as an int64_t, throwing an exception if the field does not exist or if
-/// the value is not the right type.
-///
-int64_t Record::getValueAsInt(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-          FieldName.str() + "'!\n";
-
-  if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
-    return II->getValue();
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have an int initializer!";
-}
-
-/// getValueAsListOfInts - This method looks up the specified field and returns
-/// its value as a vector of integers, throwing an exception if the field does
-/// not exist or if the value is not the right type.
-///
-std::vector<int64_t>
-Record::getValueAsListOfInts(StringRef FieldName) const {
-  ListInit *List = getValueAsListInit(FieldName);
-  std::vector<int64_t> Ints;
-  for (unsigned i = 0; i < List->getSize(); i++) {
-    if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
-      Ints.push_back(II->getValue());
-    } else {
-      throw "Record `" + getName() + "', field `" + FieldName.str() +
-            "' does not have a list of ints initializer!";
-    }
-  }
-  return Ints;
-}
-
-/// getValueAsListOfStrings - This method looks up the specified field and
-/// returns its value as a vector of strings, throwing an exception if the
-/// field does not exist or if the value is not the right type.
-///
-std::vector<std::string>
-Record::getValueAsListOfStrings(StringRef FieldName) const {
-  ListInit *List = getValueAsListInit(FieldName);
-  std::vector<std::string> Strings;
-  for (unsigned i = 0; i < List->getSize(); i++) {
-    if (StringInit *II = dynamic_cast<StringInit*>(List->getElement(i))) {
-      Strings.push_back(II->getValue());
-    } else {
-      throw "Record `" + getName() + "', field `" + FieldName.str() +
-            "' does not have a list of strings initializer!";
-    }
-  }
-  return Strings;
-}
-
-/// getValueAsDef - This method looks up the specified field and returns its
-/// value as a Record, throwing an exception if the field does not exist or if
-/// the value is not the right type.
-///
-Record *Record::getValueAsDef(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-      FieldName.str() + "'!\n";
-
-  if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
-    return DI->getDef();
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a def initializer!";
-}
-
-/// getValueAsBit - This method looks up the specified field and returns its
-/// value as a bit, throwing an exception if the field does not exist or if
-/// the value is not the right type.
-///
-bool Record::getValueAsBit(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-      FieldName.str() + "'!\n";
-
-  if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
-    return BI->getValue();
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a bit initializer!";
-}
-
-/// getValueAsDag - This method looks up the specified field and returns its
-/// value as an Dag, throwing an exception if the field does not exist or if
-/// the value is not the right type.
-///
-DagInit *Record::getValueAsDag(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-      FieldName.str() + "'!\n";
-
-  if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
-    return DI;
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-        "' does not have a dag initializer!";
-}
-
-std::string Record::getValueAsCode(StringRef FieldName) const {
-  const RecordVal *R = getValue(FieldName);
-  if (R == 0 || R->getValue() == 0)
-    throw "Record `" + getName() + "' does not have a field named `" +
-      FieldName.str() + "'!\n";
-
-  if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
-    return CI->getValue();
-  throw "Record `" + getName() + "', field `" + FieldName.str() +
-    "' does not have a code initializer!";
-}
-
-
-void MultiClass::dump() const {
-  errs() << "Record:\n";
-  Rec.dump();
-
-  errs() << "Defs:\n";
-  for (RecordVector::const_iterator r = DefPrototypes.begin(),
-         rend = DefPrototypes.end();
-       r != rend;
-       ++r) {
-    (*r)->dump();
-  }
-}
-
-
-void RecordKeeper::dump() const { errs() << *this; }
-
-raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) {
-  OS << "------------- Classes -----------------\n";
-  const std::map<std::string, Record*> &Classes = RK.getClasses();
-  for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
-         E = Classes.end(); I != E; ++I)
-    OS << "class " << *I->second;
-
-  OS << "------------- Defs -----------------\n";
-  const std::map<std::string, Record*> &Defs = RK.getDefs();
-  for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
-         E = Defs.end(); I != E; ++I)
-    OS << "def " << *I->second;
-  return OS;
-}
-
-
-/// getAllDerivedDefinitions - This method returns all concrete definitions
-/// that derive from the specified class name.  If a class with the specified
-/// name does not exist, an error is printed and true is returned.
-std::vector<Record*>
-RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
-  Record *Class = getClass(ClassName);
-  if (!Class)
-    throw "ERROR: Couldn't find the `" + ClassName + "' class!\n";
-
-  std::vector<Record*> Defs;
-  for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
-         E = getDefs().end(); I != E; ++I)
-    if (I->second->isSubClassOf(Class))
-      Defs.push_back(I->second);
-
-  return Defs;
-}
-