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//===- Record.cpp - Record implementation ---------------------------------===//
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// The LLVM Compiler Infrastructure
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
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// Implement the tablegen record classes.
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//===----------------------------------------------------------------------===//
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#include "llvm/System/DataTypes.h"
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#include "llvm/Support/Format.h"
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#include "llvm/ADT/StringExtras.h"
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//===----------------------------------------------------------------------===//
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// Type implementations
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//===----------------------------------------------------------------------===//
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void RecTy::dump() const { print(errs()); }
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Init *BitRecTy::convertValue(BitsInit *BI) {
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if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
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bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
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return RHS->getNumBits() == 1;
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Init *BitRecTy::convertValue(IntInit *II) {
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int64_t Val = II->getValue();
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if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
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return new BitInit(Val != 0);
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Init *BitRecTy::convertValue(TypedInit *VI) {
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if (dynamic_cast<BitRecTy*>(VI->getType()))
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return VI; // Accept variable if it is already of bit type!
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std::string BitsRecTy::getAsString() const {
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return "bits<" + utostr(Size) + ">";
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Init *BitsRecTy::convertValue(UnsetInit *UI) {
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BitsInit *Ret = new BitsInit(Size);
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for (unsigned i = 0; i != Size; ++i)
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Ret->setBit(i, new UnsetInit());
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Init *BitsRecTy::convertValue(BitInit *UI) {
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if (Size != 1) return 0; // Can only convert single bit...
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BitsInit *Ret = new BitsInit(1);
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// convertValue from Int initializer to bits type: Split the integer up into the
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// appropriate bits...
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Init *BitsRecTy::convertValue(IntInit *II) {
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int64_t Value = II->getValue();
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// Make sure this bitfield is large enough to hold the integer value...
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if (Value & ~((1LL << Size)-1))
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if ((Value >> Size) != -1 || ((Value & (1LL << (Size-1))) == 0))
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BitsInit *Ret = new BitsInit(Size);
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for (unsigned i = 0; i != Size; ++i)
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Ret->setBit(i, new BitInit(Value & (1LL << i)));
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Init *BitsRecTy::convertValue(BitsInit *BI) {
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// If the number of bits is right, return it. Otherwise we need to expand or
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if (BI->getNumBits() == Size) return BI;
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Init *BitsRecTy::convertValue(TypedInit *VI) {
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if (BitsRecTy *BRT = dynamic_cast<BitsRecTy*>(VI->getType()))
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if (BRT->Size == Size) {
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BitsInit *Ret = new BitsInit(Size);
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for (unsigned i = 0; i != Size; ++i)
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Ret->setBit(i, new VarBitInit(VI, i));
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if (Size == 1 && dynamic_cast<BitRecTy*>(VI->getType())) {
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BitsInit *Ret = new BitsInit(1);
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Init *IntRecTy::convertValue(BitInit *BI) {
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return new IntInit(BI->getValue());
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Init *IntRecTy::convertValue(BitsInit *BI) {
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for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
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if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
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Result |= Bit->getValue() << i;
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return new IntInit(Result);
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Init *IntRecTy::convertValue(TypedInit *TI) {
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if (TI->getType()->typeIsConvertibleTo(this))
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return TI; // Accept variable if already of the right type!
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Init *StringRecTy::convertValue(UnOpInit *BO) {
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if (BO->getOpcode() == UnOpInit::CAST) {
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Init *L = BO->getOperand()->convertInitializerTo(this);
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if (L == 0) return 0;
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if (L != BO->getOperand())
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return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
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return convertValue((TypedInit*)BO);
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Init *StringRecTy::convertValue(BinOpInit *BO) {
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if (BO->getOpcode() == BinOpInit::STRCONCAT) {
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Init *L = BO->getLHS()->convertInitializerTo(this);
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Init *R = BO->getRHS()->convertInitializerTo(this);
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if (L == 0 || R == 0) return 0;
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if (L != BO->getLHS() || R != BO->getRHS())
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return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
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if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
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if (BO->getType()->getAsString() == getAsString()) {
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Init *L = BO->getLHS()->convertInitializerTo(this);
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Init *R = BO->getRHS()->convertInitializerTo(this);
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if (L == 0 || R == 0) return 0;
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if (L != BO->getLHS() || R != BO->getRHS())
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return new BinOpInit(BinOpInit::NAMECONCAT, L, R, new StringRecTy);
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return convertValue((TypedInit*)BO);
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Init *StringRecTy::convertValue(TypedInit *TI) {
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if (dynamic_cast<StringRecTy*>(TI->getType()))
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return TI; // Accept variable if already of the right type!
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std::string ListRecTy::getAsString() const {
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return "list<" + Ty->getAsString() + ">";
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Init *ListRecTy::convertValue(ListInit *LI) {
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std::vector<Init*> Elements;
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// Verify that all of the elements of the list are subclasses of the
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// appropriate class!
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for (unsigned i = 0, e = LI->getSize(); i != e; ++i)
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if (Init *CI = LI->getElement(i)->convertInitializerTo(Ty))
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Elements.push_back(CI);
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ListRecTy *LType = dynamic_cast<ListRecTy*>(LI->getType());
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return new ListInit(Elements, new ListRecTy(Ty));
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Init *ListRecTy::convertValue(TypedInit *TI) {
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// Ensure that TI is compatible with our class.
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if (ListRecTy *LRT = dynamic_cast<ListRecTy*>(TI->getType()))
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if (LRT->getElementType()->typeIsConvertibleTo(getElementType()))
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Init *CodeRecTy::convertValue(TypedInit *TI) {
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if (TI->getType()->typeIsConvertibleTo(this))
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Init *DagRecTy::convertValue(TypedInit *TI) {
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if (TI->getType()->typeIsConvertibleTo(this))
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Init *DagRecTy::convertValue(UnOpInit *BO) {
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if (BO->getOpcode() == UnOpInit::CAST) {
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Init *L = BO->getOperand()->convertInitializerTo(this);
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if (L == 0) return 0;
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if (L != BO->getOperand())
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return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
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Init *DagRecTy::convertValue(BinOpInit *BO) {
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if (BO->getOpcode() == BinOpInit::CONCAT) {
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Init *L = BO->getLHS()->convertInitializerTo(this);
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Init *R = BO->getRHS()->convertInitializerTo(this);
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if (L == 0 || R == 0) return 0;
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if (L != BO->getLHS() || R != BO->getRHS())
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return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
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if (BO->getOpcode() == BinOpInit::NAMECONCAT) {
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if (BO->getType()->getAsString() == getAsString()) {
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Init *L = BO->getLHS()->convertInitializerTo(this);
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Init *R = BO->getRHS()->convertInitializerTo(this);
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if (L == 0 || R == 0) return 0;
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if (L != BO->getLHS() || R != BO->getRHS())
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return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
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std::string RecordRecTy::getAsString() const {
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return Rec->getName();
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Init *RecordRecTy::convertValue(DefInit *DI) {
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// Ensure that DI is a subclass of Rec.
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if (!DI->getDef()->isSubClassOf(Rec))
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Init *RecordRecTy::convertValue(TypedInit *TI) {
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// Ensure that TI is compatible with Rec.
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if (RecordRecTy *RRT = dynamic_cast<RecordRecTy*>(TI->getType()))
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if (RRT->getRecord()->isSubClassOf(getRecord()) ||
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RRT->getRecord() == getRecord())
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bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
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return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
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/// resolveTypes - Find a common type that T1 and T2 convert to.
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/// Return 0 if no such type exists.
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RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
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if (!T1->typeIsConvertibleTo(T2)) {
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if (!T2->typeIsConvertibleTo(T1)) {
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// If one is a Record type, check superclasses
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RecordRecTy *RecTy1 = dynamic_cast<RecordRecTy*>(T1);
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// See if T2 inherits from a type T1 also inherits from
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const std::vector<Record *> &T1SuperClasses =
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RecTy1->getRecord()->getSuperClasses();
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for(std::vector<Record *>::const_iterator i = T1SuperClasses.begin(),
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iend = T1SuperClasses.end();
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RecordRecTy *SuperRecTy1 = new RecordRecTy(*i);
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RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
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if (NewType1 != SuperRecTy1) {
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RecordRecTy *RecTy2 = dynamic_cast<RecordRecTy*>(T2);
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// See if T1 inherits from a type T2 also inherits from
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const std::vector<Record *> &T2SuperClasses =
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RecTy2->getRecord()->getSuperClasses();
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for (std::vector<Record *>::const_iterator i = T2SuperClasses.begin(),
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iend = T2SuperClasses.end();
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RecordRecTy *SuperRecTy2 = new RecordRecTy(*i);
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RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
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if (NewType2 != SuperRecTy2) {
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//===----------------------------------------------------------------------===//
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// Initializer implementations
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//===----------------------------------------------------------------------===//
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void Init::dump() const { return print(errs()); }
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Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
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BitsInit *BI = new BitsInit(Bits.size());
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for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
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if (Bits[i] >= getNumBits()) {
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BI->setBit(i, getBit(Bits[i]));
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std::string BitsInit::getAsString() const {
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std::string Result = "{ ";
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for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
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if (i) Result += ", ";
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if (Init *Bit = getBit(e-i-1))
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Result += Bit->getAsString();
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return Result + " }";
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// resolveReferences - If there are any field references that refer to fields
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// that have been filled in, we can propagate the values now.
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Init *BitsInit::resolveReferences(Record &R, const RecordVal *RV) {
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bool Changed = false;
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BitsInit *New = new BitsInit(getNumBits());
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for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
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Init *CurBit = getBit(i);
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CurBit = CurBit->resolveReferences(R, RV);
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Changed |= B != CurBit;
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} while (B != CurBit);
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New->setBit(i, CurBit);
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std::string IntInit::getAsString() const {
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return itostr(Value);
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Init *IntInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
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BitsInit *BI = new BitsInit(Bits.size());
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for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
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BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
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Init *ListInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
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std::vector<Init*> Vals;
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for (unsigned i = 0, e = Elements.size(); i != e; ++i) {
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if (Elements[i] >= getSize())
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Vals.push_back(getElement(Elements[i]));
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return new ListInit(Vals, getType());
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Record *ListInit::getElementAsRecord(unsigned i) const {
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assert(i < Values.size() && "List element index out of range!");
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DefInit *DI = dynamic_cast<DefInit*>(Values[i]);
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if (DI == 0) throw "Expected record in list!";
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Init *ListInit::resolveReferences(Record &R, const RecordVal *RV) {
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std::vector<Init*> Resolved;
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Resolved.reserve(getSize());
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bool Changed = false;
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for (unsigned i = 0, e = getSize(); i != e; ++i) {
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Init *CurElt = getElement(i);
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CurElt = CurElt->resolveReferences(R, RV);
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Changed |= E != CurElt;
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} while (E != CurElt);
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Resolved.push_back(E);
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return new ListInit(Resolved, getType());
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Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV,
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if (Elt >= getSize())
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return 0; // Out of range reference.
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Init *E = getElement(Elt);
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// If the element is set to some value, or if we are resolving a reference
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// to a specific variable and that variable is explicitly unset, then
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// replace the VarListElementInit with it.
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if (IRV || !dynamic_cast<UnsetInit*>(E))
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std::string ListInit::getAsString() const {
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std::string Result = "[";
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for (unsigned i = 0, e = Values.size(); i != e; ++i) {
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if (i) Result += ", ";
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Result += Values[i]->getAsString();
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Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
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Init *Folded = Fold(&R, 0);
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if (Folded != this) {
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TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
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return Typed->resolveBitReference(R, IRV, Bit);
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Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
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Init *Folded = Fold(&R, 0);
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if (Folded != this) {
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TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
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return Typed->resolveListElementReference(R, IRV, Elt);
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Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
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switch (getOpcode()) {
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default: assert(0 && "Unknown unop");
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if (getType()->getAsString() == "string") {
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StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
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DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
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return new StringInit(LHSd->getDef()->getName());
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StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
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std::string Name = LHSs->getValue();
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// From TGParser::ParseIDValue
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if (const RecordVal *RV = CurRec->getValue(Name)) {
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if (RV->getType() != getType()) {
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throw "type mismatch in nameconcat";
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return new VarInit(Name, RV->getType());
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std::string TemplateArgName = CurRec->getName()+":"+Name;
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if (CurRec->isTemplateArg(TemplateArgName)) {
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const RecordVal *RV = CurRec->getValue(TemplateArgName);
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assert(RV && "Template arg doesn't exist??");
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if (RV->getType() != getType()) {
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throw "type mismatch in nameconcat";
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return new VarInit(TemplateArgName, RV->getType());
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std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
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if (CurMultiClass->Rec.isTemplateArg(MCName)) {
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const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
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assert(RV && "Template arg doesn't exist??");
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if (RV->getType() != getType()) {
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throw "type mismatch in nameconcat";
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return new VarInit(MCName, RV->getType());
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if (Record *D = Records.getDef(Name))
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return new DefInit(D);
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errs() << "Variable not defined: '" + Name + "'\n";
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assert(0 && "Variable not found");
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ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
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if (LHSl->getSize() == 0) {
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assert(0 && "Empty list in car");
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return LHSl->getElement(0);
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ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
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if (LHSl->getSize() == 0) {
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assert(0 && "Empty list in cdr");
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ListInit *Result = new ListInit(LHSl->begin()+1, LHSl->end(),
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ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
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if (LHSl->getSize() == 0) {
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return new IntInit(1);
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return new IntInit(0);
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StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
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if (LHSs->getValue().empty()) {
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return new IntInit(1);
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return new IntInit(0);
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Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
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Init *lhs = LHS->resolveReferences(R, RV);
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return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
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std::string UnOpInit::getAsString() const {
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case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
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case CAR: Result = "!car"; break;
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case CDR: Result = "!cdr"; break;
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case LNULL: Result = "!null"; break;
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return Result + "(" + LHS->getAsString() + ")";
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RecTy *UnOpInit::getFieldType(const std::string &FieldName) const {
624
switch (getOpcode()) {
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default: assert(0 && "Unknown unop");
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RecordRecTy *RecordType = dynamic_cast<RecordRecTy *>(getType());
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RecordVal *Field = RecordType->getRecord()->getValue(FieldName);
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return Field->getType();
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Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
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switch (getOpcode()) {
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default: assert(0 && "Unknown binop");
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DagInit *LHSs = dynamic_cast<DagInit*>(LHS);
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DagInit *RHSs = dynamic_cast<DagInit*>(RHS);
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DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
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DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
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if (LOp->getDef() != ROp->getDef()) {
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LOp->getDef()->getName() == "outs" ||
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LOp->getDef()->getName() != "ins" ||
653
LOp->getDef()->getName() != "defs";
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ROp->getDef()->getName() == "outs" ||
656
ROp->getDef()->getName() != "ins" ||
657
ROp->getDef()->getName() != "defs";
658
if (!LIsOps || !RIsOps)
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throw "Concated Dag operators do not match!";
661
std::vector<Init*> Args;
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std::vector<std::string> ArgNames;
663
for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
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Args.push_back(LHSs->getArg(i));
665
ArgNames.push_back(LHSs->getArgName(i));
667
for (unsigned i = 0, e = RHSs->getNumArgs(); i != e; ++i) {
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Args.push_back(RHSs->getArg(i));
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ArgNames.push_back(RHSs->getArgName(i));
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return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
676
StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
677
StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
679
return new StringInit(LHSs->getValue() + RHSs->getValue());
683
StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
684
StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
686
std::string Name(LHSs->getValue() + RHSs->getValue());
688
// From TGParser::ParseIDValue
690
if (const RecordVal *RV = CurRec->getValue(Name)) {
691
if (RV->getType() != getType()) {
692
throw "type mismatch in nameconcat";
694
return new VarInit(Name, RV->getType());
697
std::string TemplateArgName = CurRec->getName()+":"+Name;
698
if (CurRec->isTemplateArg(TemplateArgName)) {
699
const RecordVal *RV = CurRec->getValue(TemplateArgName);
700
assert(RV && "Template arg doesn't exist??");
702
if (RV->getType() != getType()) {
703
throw "type mismatch in nameconcat";
706
return new VarInit(TemplateArgName, RV->getType());
711
std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
712
if (CurMultiClass->Rec.isTemplateArg(MCName)) {
713
const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
714
assert(RV && "Template arg doesn't exist??");
716
if (RV->getType() != getType()) {
717
throw "type mismatch in nameconcat";
720
return new VarInit(MCName, RV->getType());
724
if (Record *D = Records.getDef(Name))
725
return new DefInit(D);
727
errs() << "Variable not defined in !nameconcat: '" + Name + "'\n";
728
assert(0 && "Variable not found in !nameconcat");
734
// Make sure we've resolved
735
StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
736
StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
738
return new IntInit(LHSs->getValue() == RHSs->getValue());
745
IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
746
IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
748
int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
750
switch (getOpcode()) {
751
default: assert(0 && "Bad opcode!");
752
case SHL: Result = LHSv << RHSv; break;
753
case SRA: Result = LHSv >> RHSv; break;
754
case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
756
return new IntInit(Result);
764
Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
765
Init *lhs = LHS->resolveReferences(R, RV);
766
Init *rhs = RHS->resolveReferences(R, RV);
768
if (LHS != lhs || RHS != rhs)
769
return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
773
std::string BinOpInit::getAsString() const {
776
case CONCAT: Result = "!con"; break;
777
case SHL: Result = "!shl"; break;
778
case SRA: Result = "!sra"; break;
779
case SRL: Result = "!srl"; break;
780
case EQ: Result = "!eq"; break;
781
case STRCONCAT: Result = "!strconcat"; break;
783
Result = "!nameconcat<" + getType()->getAsString() + ">"; break;
785
return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
788
static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
789
Record *CurRec, MultiClass *CurMultiClass);
791
static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
792
RecTy *Type, Record *CurRec,
793
MultiClass *CurMultiClass) {
794
std::vector<Init *> NewOperands;
796
TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
798
// If this is a dag, recurse
799
if (TArg && TArg->getType()->getAsString() == "dag") {
800
Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
801
CurRec, CurMultiClass);
809
for (int i = 0; i < RHSo->getNumOperands(); ++i) {
810
OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
813
Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
814
Type, CurRec, CurMultiClass);
816
NewOperands.push_back(Result);
818
NewOperands.push_back(Arg);
820
} else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
821
NewOperands.push_back(Arg);
823
NewOperands.push_back(RHSo->getOperand(i));
827
// Now run the operator and use its result as the new leaf
828
OpInit *NewOp = RHSo->clone(NewOperands);
829
Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
830
if (NewVal != NewOp) {
837
static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
838
Record *CurRec, MultiClass *CurMultiClass) {
839
DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
840
ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
842
DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
843
ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
845
OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
848
errs() << "!foreach requires an operator\n";
849
assert(0 && "No operator for !foreach");
852
TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
855
errs() << "!foreach requires typed variable\n";
856
assert(0 && "No typed variable for !foreach");
859
if ((MHSd && DagType) || (MHSl && ListType)) {
861
Init *Val = MHSd->getOperator();
862
Init *Result = EvaluateOperation(RHSo, LHS, Val,
863
Type, CurRec, CurMultiClass);
868
std::vector<std::pair<Init *, std::string> > args;
869
for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
872
Arg = MHSd->getArg(i);
873
ArgName = MHSd->getArgName(i);
876
Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
877
CurRec, CurMultiClass);
882
// TODO: Process arg names
883
args.push_back(std::make_pair(Arg, ArgName));
886
return new DagInit(Val, "", args);
889
std::vector<Init *> NewOperands;
890
std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
892
for (ListInit::iterator li = NewList.begin(),
893
liend = NewList.end();
898
for(int i = 0; i < RHSo->getNumOperands(); ++i) {
899
// First, replace the foreach variable with the list item
900
if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
901
NewOperands.push_back(Item);
903
NewOperands.push_back(RHSo->getOperand(i));
907
// Now run the operator and use its result as the new list item
908
OpInit *NewOp = RHSo->clone(NewOperands);
909
Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
910
if (NewItem != NewOp) {
915
return new ListInit(NewList, MHSl->getType());
921
Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
922
switch (getOpcode()) {
923
default: assert(0 && "Unknown binop");
925
DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
926
VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
927
StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
929
DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
930
VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
931
StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
933
DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
934
VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
935
StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
937
if ((LHSd && MHSd && RHSd)
938
|| (LHSv && MHSv && RHSv)
939
|| (LHSs && MHSs && RHSs)) {
941
Record *Val = RHSd->getDef();
942
if (LHSd->getAsString() == RHSd->getAsString()) {
943
Val = MHSd->getDef();
945
return new DefInit(Val);
948
std::string Val = RHSv->getName();
949
if (LHSv->getAsString() == RHSv->getAsString()) {
950
Val = MHSv->getName();
952
return new VarInit(Val, getType());
955
std::string Val = RHSs->getValue();
957
std::string::size_type found;
958
std::string::size_type idx = 0;
960
found = Val.find(LHSs->getValue(), idx);
961
if (found != std::string::npos) {
962
Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
964
idx = found + MHSs->getValue().size();
965
} while (found != std::string::npos);
967
return new StringInit(Val);
974
Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
975
CurRec, CurMultiClass);
983
IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
985
if (LHSi->getValue()) {
998
Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
999
Init *lhs = LHS->resolveReferences(R, RV);
1001
if (Opc == IF && lhs != LHS) {
1002
IntInit *Value = dynamic_cast<IntInit*>(lhs);
1005
if (Value->getValue()) {
1006
Init *mhs = MHS->resolveReferences(R, RV);
1007
return (new TernOpInit(getOpcode(), lhs, mhs,
1008
RHS, getType()))->Fold(&R, 0);
1010
Init *rhs = RHS->resolveReferences(R, RV);
1011
return (new TernOpInit(getOpcode(), lhs, MHS,
1012
rhs, getType()))->Fold(&R, 0);
1017
Init *mhs = MHS->resolveReferences(R, RV);
1018
Init *rhs = RHS->resolveReferences(R, RV);
1020
if (LHS != lhs || MHS != mhs || RHS != rhs)
1021
return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
1025
std::string TernOpInit::getAsString() const {
1028
case SUBST: Result = "!subst"; break;
1029
case FOREACH: Result = "!foreach"; break;
1030
case IF: Result = "!if"; break;
1032
return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
1033
+ RHS->getAsString() + ")";
1036
Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
1037
BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
1038
if (T == 0) return 0; // Cannot subscript a non-bits variable...
1039
unsigned NumBits = T->getNumBits();
1041
BitsInit *BI = new BitsInit(Bits.size());
1042
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
1043
if (Bits[i] >= NumBits) {
1047
BI->setBit(i, new VarBitInit(this, Bits[i]));
1052
Init *TypedInit::convertInitListSlice(const std::vector<unsigned> &Elements) {
1053
ListRecTy *T = dynamic_cast<ListRecTy*>(getType());
1054
if (T == 0) return 0; // Cannot subscript a non-list variable...
1056
if (Elements.size() == 1)
1057
return new VarListElementInit(this, Elements[0]);
1059
std::vector<Init*> ListInits;
1060
ListInits.reserve(Elements.size());
1061
for (unsigned i = 0, e = Elements.size(); i != e; ++i)
1062
ListInits.push_back(new VarListElementInit(this, Elements[i]));
1063
return new ListInit(ListInits, T);
1067
Init *VarInit::resolveBitReference(Record &R, const RecordVal *IRV,
1069
if (R.isTemplateArg(getName())) return 0;
1070
if (IRV && IRV->getName() != getName()) return 0;
1072
RecordVal *RV = R.getValue(getName());
1073
assert(RV && "Reference to a non-existent variable?");
1074
assert(dynamic_cast<BitsInit*>(RV->getValue()));
1075
BitsInit *BI = (BitsInit*)RV->getValue();
1077
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1078
Init *B = BI->getBit(Bit);
1080
// If the bit is set to some value, or if we are resolving a reference to a
1081
// specific variable and that variable is explicitly unset, then replace the
1082
// VarBitInit with it.
1083
if (IRV || !dynamic_cast<UnsetInit*>(B))
1088
Init *VarInit::resolveListElementReference(Record &R, const RecordVal *IRV,
1090
if (R.isTemplateArg(getName())) return 0;
1091
if (IRV && IRV->getName() != getName()) return 0;
1093
RecordVal *RV = R.getValue(getName());
1094
assert(RV && "Reference to a non-existent variable?");
1095
ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
1097
VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
1098
assert(VI && "Invalid list element!");
1099
return new VarListElementInit(VI, Elt);
1102
if (Elt >= LI->getSize())
1103
return 0; // Out of range reference.
1104
Init *E = LI->getElement(Elt);
1105
// If the element is set to some value, or if we are resolving a reference
1106
// to a specific variable and that variable is explicitly unset, then
1107
// replace the VarListElementInit with it.
1108
if (IRV || !dynamic_cast<UnsetInit*>(E))
1114
RecTy *VarInit::getFieldType(const std::string &FieldName) const {
1115
if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
1116
if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
1117
return RV->getType();
1121
Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
1122
if (dynamic_cast<RecordRecTy*>(getType()))
1123
if (const RecordVal *RV = R.getValue(VarName)) {
1124
Init *TheInit = RV->getValue();
1125
assert(TheInit != this && "Infinite loop detected!");
1126
if (Init *I = TheInit->getFieldInit(R, FieldName))
1134
/// resolveReferences - This method is used by classes that refer to other
1135
/// variables which may not be defined at the time the expression is formed.
1136
/// If a value is set for the variable later, this method will be called on
1137
/// users of the value to allow the value to propagate out.
1139
Init *VarInit::resolveReferences(Record &R, const RecordVal *RV) {
1140
if (RecordVal *Val = R.getValue(VarName))
1141
if (RV == Val || (RV == 0 && !dynamic_cast<UnsetInit*>(Val->getValue())))
1142
return Val->getValue();
1146
std::string VarBitInit::getAsString() const {
1147
return TI->getAsString() + "{" + utostr(Bit) + "}";
1150
Init *VarBitInit::resolveReferences(Record &R, const RecordVal *RV) {
1151
if (Init *I = getVariable()->resolveBitReference(R, RV, getBitNum()))
1156
std::string VarListElementInit::getAsString() const {
1157
return TI->getAsString() + "[" + utostr(Element) + "]";
1160
Init *VarListElementInit::resolveReferences(Record &R, const RecordVal *RV) {
1161
if (Init *I = getVariable()->resolveListElementReference(R, RV,
1167
Init *VarListElementInit::resolveBitReference(Record &R, const RecordVal *RV,
1169
// FIXME: This should be implemented, to support references like:
1170
// bit B = AA[0]{1};
1174
Init *VarListElementInit::
1175
resolveListElementReference(Record &R, const RecordVal *RV, unsigned Elt) {
1176
// FIXME: This should be implemented, to support references like:
1177
// int B = AA[0][1];
1181
RecTy *DefInit::getFieldType(const std::string &FieldName) const {
1182
if (const RecordVal *RV = Def->getValue(FieldName))
1183
return RV->getType();
1187
Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
1188
return Def->getValue(FieldName)->getValue();
1192
std::string DefInit::getAsString() const {
1193
return Def->getName();
1196
Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
1198
if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
1199
if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
1200
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
1201
Init *B = BI->getBit(Bit);
1203
if (dynamic_cast<BitInit*>(B)) // If the bit is set...
1204
return B; // Replace the VarBitInit with it.
1209
Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
1211
if (Init *ListVal = Rec->getFieldInit(R, FieldName))
1212
if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
1213
if (Elt >= LI->getSize()) return 0;
1214
Init *E = LI->getElement(Elt);
1216
// If the element is set to some value, or if we are resolving a
1217
// reference to a specific variable and that variable is explicitly
1218
// unset, then replace the VarListElementInit with it.
1219
if (RV || !dynamic_cast<UnsetInit*>(E))
1225
Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
1226
Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
1228
Init *BitsVal = NewRec->getFieldInit(R, FieldName);
1230
Init *BVR = BitsVal->resolveReferences(R, RV);
1231
return BVR->isComplete() ? BVR : this;
1234
if (NewRec != Rec) {
1235
return new FieldInit(NewRec, FieldName);
1240
Init *DagInit::resolveReferences(Record &R, const RecordVal *RV) {
1241
std::vector<Init*> NewArgs;
1242
for (unsigned i = 0, e = Args.size(); i != e; ++i)
1243
NewArgs.push_back(Args[i]->resolveReferences(R, RV));
1245
Init *Op = Val->resolveReferences(R, RV);
1247
if (Args != NewArgs || Op != Val)
1248
return new DagInit(Op, "", NewArgs, ArgNames);
1254
std::string DagInit::getAsString() const {
1255
std::string Result = "(" + Val->getAsString();
1256
if (!ValName.empty())
1257
Result += ":" + ValName;
1259
Result += " " + Args[0]->getAsString();
1260
if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
1261
for (unsigned i = 1, e = Args.size(); i != e; ++i) {
1262
Result += ", " + Args[i]->getAsString();
1263
if (!ArgNames[i].empty()) Result += ":$" + ArgNames[i];
1266
return Result + ")";
1270
//===----------------------------------------------------------------------===//
1271
// Other implementations
1272
//===----------------------------------------------------------------------===//
1274
RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
1275
: Name(N), Ty(T), Prefix(P) {
1276
Value = Ty->convertValue(new UnsetInit());
1277
assert(Value && "Cannot create unset value for current type!");
1280
void RecordVal::dump() const { errs() << *this; }
1282
void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
1283
if (getPrefix()) OS << "field ";
1284
OS << *getType() << " " << getName();
1287
OS << " = " << *getValue();
1289
if (PrintSem) OS << ";\n";
1292
unsigned Record::LastID = 0;
1294
void Record::setName(const std::string &Name) {
1295
if (Records.getDef(getName()) == this) {
1296
Records.removeDef(getName());
1298
Records.addDef(this);
1300
Records.removeClass(getName());
1302
Records.addClass(this);
1306
/// resolveReferencesTo - If anything in this record refers to RV, replace the
1307
/// reference to RV with the RHS of RV. If RV is null, we resolve all possible
1309
void Record::resolveReferencesTo(const RecordVal *RV) {
1310
for (unsigned i = 0, e = Values.size(); i != e; ++i) {
1311
if (Init *V = Values[i].getValue())
1312
Values[i].setValue(V->resolveReferences(*this, RV));
1317
void Record::dump() const { errs() << *this; }
1319
raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) {
1322
const std::vector<std::string> &TArgs = R.getTemplateArgs();
1323
if (!TArgs.empty()) {
1325
for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
1327
const RecordVal *RV = R.getValue(TArgs[i]);
1328
assert(RV && "Template argument record not found??");
1329
RV->print(OS, false);
1335
const std::vector<Record*> &SC = R.getSuperClasses();
1338
for (unsigned i = 0, e = SC.size(); i != e; ++i)
1339
OS << " " << SC[i]->getName();
1343
const std::vector<RecordVal> &Vals = R.getValues();
1344
for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1345
if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1347
for (unsigned i = 0, e = Vals.size(); i != e; ++i)
1348
if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
1354
/// getValueInit - Return the initializer for a value with the specified name,
1355
/// or throw an exception if the field does not exist.
1357
Init *Record::getValueInit(StringRef FieldName) const {
1358
const RecordVal *R = getValue(FieldName);
1359
if (R == 0 || R->getValue() == 0)
1360
throw "Record `" + getName() + "' does not have a field named `" +
1361
FieldName.str() + "'!\n";
1362
return R->getValue();
1366
/// getValueAsString - This method looks up the specified field and returns its
1367
/// value as a string, throwing an exception if the field does not exist or if
1368
/// the value is not a string.
1370
std::string Record::getValueAsString(StringRef FieldName) const {
1371
const RecordVal *R = getValue(FieldName);
1372
if (R == 0 || R->getValue() == 0)
1373
throw "Record `" + getName() + "' does not have a field named `" +
1374
FieldName.str() + "'!\n";
1376
if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
1377
return SI->getValue();
1378
throw "Record `" + getName() + "', field `" + FieldName.str() +
1379
"' does not have a string initializer!";
1382
/// getValueAsBitsInit - This method looks up the specified field and returns
1383
/// its value as a BitsInit, throwing an exception if the field does not exist
1384
/// or if the value is not the right type.
1386
BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const {
1387
const RecordVal *R = getValue(FieldName);
1388
if (R == 0 || R->getValue() == 0)
1389
throw "Record `" + getName() + "' does not have a field named `" +
1390
FieldName.str() + "'!\n";
1392
if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
1394
throw "Record `" + getName() + "', field `" + FieldName.str() +
1395
"' does not have a BitsInit initializer!";
1398
/// getValueAsListInit - This method looks up the specified field and returns
1399
/// its value as a ListInit, throwing an exception if the field does not exist
1400
/// or if the value is not the right type.
1402
ListInit *Record::getValueAsListInit(StringRef FieldName) const {
1403
const RecordVal *R = getValue(FieldName);
1404
if (R == 0 || R->getValue() == 0)
1405
throw "Record `" + getName() + "' does not have a field named `" +
1406
FieldName.str() + "'!\n";
1408
if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
1410
throw "Record `" + getName() + "', field `" + FieldName.str() +
1411
"' does not have a list initializer!";
1414
/// getValueAsListOfDefs - This method looks up the specified field and returns
1415
/// its value as a vector of records, throwing an exception if the field does
1416
/// not exist or if the value is not the right type.
1418
std::vector<Record*>
1419
Record::getValueAsListOfDefs(StringRef FieldName) const {
1420
ListInit *List = getValueAsListInit(FieldName);
1421
std::vector<Record*> Defs;
1422
for (unsigned i = 0; i < List->getSize(); i++) {
1423
if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
1424
Defs.push_back(DI->getDef());
1426
throw "Record `" + getName() + "', field `" + FieldName.str() +
1427
"' list is not entirely DefInit!";
1433
/// getValueAsInt - This method looks up the specified field and returns its
1434
/// value as an int64_t, throwing an exception if the field does not exist or if
1435
/// the value is not the right type.
1437
int64_t Record::getValueAsInt(StringRef FieldName) const {
1438
const RecordVal *R = getValue(FieldName);
1439
if (R == 0 || R->getValue() == 0)
1440
throw "Record `" + getName() + "' does not have a field named `" +
1441
FieldName.str() + "'!\n";
1443
if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
1444
return II->getValue();
1445
throw "Record `" + getName() + "', field `" + FieldName.str() +
1446
"' does not have an int initializer!";
1449
/// getValueAsListOfInts - This method looks up the specified field and returns
1450
/// its value as a vector of integers, throwing an exception if the field does
1451
/// not exist or if the value is not the right type.
1453
std::vector<int64_t>
1454
Record::getValueAsListOfInts(StringRef FieldName) const {
1455
ListInit *List = getValueAsListInit(FieldName);
1456
std::vector<int64_t> Ints;
1457
for (unsigned i = 0; i < List->getSize(); i++) {
1458
if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
1459
Ints.push_back(II->getValue());
1461
throw "Record `" + getName() + "', field `" + FieldName.str() +
1462
"' does not have a list of ints initializer!";
1468
/// getValueAsDef - This method looks up the specified field and returns its
1469
/// value as a Record, throwing an exception if the field does not exist or if
1470
/// the value is not the right type.
1472
Record *Record::getValueAsDef(StringRef FieldName) const {
1473
const RecordVal *R = getValue(FieldName);
1474
if (R == 0 || R->getValue() == 0)
1475
throw "Record `" + getName() + "' does not have a field named `" +
1476
FieldName.str() + "'!\n";
1478
if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
1479
return DI->getDef();
1480
throw "Record `" + getName() + "', field `" + FieldName.str() +
1481
"' does not have a def initializer!";
1484
/// getValueAsBit - This method looks up the specified field and returns its
1485
/// value as a bit, throwing an exception if the field does not exist or if
1486
/// the value is not the right type.
1488
bool Record::getValueAsBit(StringRef FieldName) const {
1489
const RecordVal *R = getValue(FieldName);
1490
if (R == 0 || R->getValue() == 0)
1491
throw "Record `" + getName() + "' does not have a field named `" +
1492
FieldName.str() + "'!\n";
1494
if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
1495
return BI->getValue();
1496
throw "Record `" + getName() + "', field `" + FieldName.str() +
1497
"' does not have a bit initializer!";
1500
/// getValueAsDag - This method looks up the specified field and returns its
1501
/// value as an Dag, throwing an exception if the field does not exist or if
1502
/// the value is not the right type.
1504
DagInit *Record::getValueAsDag(StringRef FieldName) const {
1505
const RecordVal *R = getValue(FieldName);
1506
if (R == 0 || R->getValue() == 0)
1507
throw "Record `" + getName() + "' does not have a field named `" +
1508
FieldName.str() + "'!\n";
1510
if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
1512
throw "Record `" + getName() + "', field `" + FieldName.str() +
1513
"' does not have a dag initializer!";
1516
std::string Record::getValueAsCode(StringRef FieldName) const {
1517
const RecordVal *R = getValue(FieldName);
1518
if (R == 0 || R->getValue() == 0)
1519
throw "Record `" + getName() + "' does not have a field named `" +
1520
FieldName.str() + "'!\n";
1522
if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
1523
return CI->getValue();
1524
throw "Record `" + getName() + "', field `" + FieldName.str() +
1525
"' does not have a code initializer!";
1529
void MultiClass::dump() const {
1530
errs() << "Record:\n";
1533
errs() << "Defs:\n";
1534
for (RecordVector::const_iterator r = DefPrototypes.begin(),
1535
rend = DefPrototypes.end();
1543
void RecordKeeper::dump() const { errs() << *this; }
1545
raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) {
1546
OS << "------------- Classes -----------------\n";
1547
const std::map<std::string, Record*> &Classes = RK.getClasses();
1548
for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),
1549
E = Classes.end(); I != E; ++I)
1550
OS << "class " << *I->second;
1552
OS << "------------- Defs -----------------\n";
1553
const std::map<std::string, Record*> &Defs = RK.getDefs();
1554
for (std::map<std::string, Record*>::const_iterator I = Defs.begin(),
1555
E = Defs.end(); I != E; ++I)
1556
OS << "def " << *I->second;
1561
/// getAllDerivedDefinitions - This method returns all concrete definitions
1562
/// that derive from the specified class name. If a class with the specified
1563
/// name does not exist, an error is printed and true is returned.
1564
std::vector<Record*>
1565
RecordKeeper::getAllDerivedDefinitions(const std::string &ClassName) const {
1566
Record *Class = Records.getClass(ClassName);
1568
throw "ERROR: Couldn't find the `" + ClassName + "' class!\n";
1570
std::vector<Record*> Defs;
1571
for (std::map<std::string, Record*>::const_iterator I = getDefs().begin(),
1572
E = getDefs().end(); I != E; ++I)
1573
if (I->second->isSubClassOf(Class))
1574
Defs.push_back(I->second);