mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-19 19:29:31 +00:00
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7544 91177308-0d34-0410-b5e6-96231b3b80d8
634 lines
19 KiB
C++
634 lines
19 KiB
C++
//===- Record.cpp - Record implementation ---------------------------------===//
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//
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//
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//===----------------------------------------------------------------------===//
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#include "Record.h"
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//===----------------------------------------------------------------------===//
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// Type implementations
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//===----------------------------------------------------------------------===//
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void RecTy::dump() const { print(std::cerr); }
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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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return BI->getBit(0);
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}
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bool BitRecTy::baseClassOf(const BitsRecTy *RHS) const {
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return RHS->getNumBits() == 1;
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}
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Init *BitRecTy::convertValue(IntInit *II) {
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int 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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}
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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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return 0;
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}
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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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return Ret;
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}
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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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Ret->setBit(0, UI);
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return Ret;
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}
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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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//
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Init *BitsRecTy::convertValue(IntInit *II) {
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int 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 >= 0) {
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if (Value & ~((1 << Size)-1))
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return 0;
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} else {
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if ((Value >> Size) != -1 || ((Value & (1 << Size-1)) == 0))
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return 0;
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}
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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 & (1 << i)));
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return Ret;
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}
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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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// truncate...
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if (BI->getNumBits() == Size) return BI;
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return 0;
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}
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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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return Ret;
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}
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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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Ret->setBit(0, VI);
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return Ret;
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}
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return 0;
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}
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Init *IntRecTy::convertValue(BitInit *BI) {
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return new IntInit(BI->getValue());
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}
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Init *IntRecTy::convertValue(BitsInit *BI) {
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int Result = 0;
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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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} else {
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return 0;
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}
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return new IntInit(Result);
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}
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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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return 0;
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}
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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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return 0;
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}
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void ListRecTy::print(std::ostream &OS) const {
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OS << "list<" << *Ty << ">";
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}
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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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else
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return 0;
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return new ListInit(Elements);
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}
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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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return TI;
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return 0;
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}
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void RecordRecTy::print(std::ostream &OS) const {
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OS << Rec->getName();
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}
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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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return 0;
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return DI;
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}
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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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return TI;
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return 0;
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}
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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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}
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//===----------------------------------------------------------------------===//
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// Initializer implementations
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//===----------------------------------------------------------------------===//
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void Init::dump() const { return print(std::cerr); }
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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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delete BI;
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return 0;
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}
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BI->setBit(i, getBit(Bits[i]));
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}
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return BI;
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}
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void BitsInit::print(std::ostream &OS) const {
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//if (!printInHex(OS)) return;
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//if (!printAsVariable(OS)) return;
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//if (!printAsUnset(OS)) return;
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OS << "{ ";
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for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
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if (i) OS << ", ";
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if (Init *Bit = getBit(e-i-1))
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Bit->print(OS);
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else
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OS << "*";
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}
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OS << " }";
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}
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bool BitsInit::printInHex(std::ostream &OS) const {
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// First, attempt to convert the value into an integer value...
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int Result = 0;
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for (unsigned i = 0, e = getNumBits(); i != e; ++i)
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if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
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Result |= Bit->getValue() << i;
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} else {
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return true;
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}
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OS << "0x" << std::hex << Result << std::dec;
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return false;
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}
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bool BitsInit::printAsVariable(std::ostream &OS) const {
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// Get the variable that we may be set equal to...
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assert(getNumBits() != 0);
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VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
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if (FirstBit == 0) return true;
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TypedInit *Var = FirstBit->getVariable();
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// Check to make sure the types are compatible.
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BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
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if (Ty == 0) return true;
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if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
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// Check to make sure all bits are referring to the right bits in the variable
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for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
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VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
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if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
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return true;
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}
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Var->print(OS);
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return false;
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}
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bool BitsInit::printAsUnset(std::ostream &OS) const {
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for (unsigned i = 0, e = getNumBits(); i != e; ++i)
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if (!dynamic_cast<UnsetInit*>(getBit(i)))
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return true;
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OS << "?";
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return false;
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}
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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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//
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Init *BitsInit::resolveReferences(Record &R) {
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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 *B;
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Init *CurBit = getBit(i);
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do {
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B = CurBit;
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CurBit = CurBit->resolveReferences(R);
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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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}
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if (Changed)
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return New;
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delete New;
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return this;
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}
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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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if (Bits[i] >= 32) {
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delete BI;
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return 0;
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}
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BI->setBit(i, new BitInit(Value & (1 << Bits[i])));
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}
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return BI;
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}
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void ListInit::print(std::ostream &OS) const {
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OS << "[";
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for (unsigned i = 0, e = Values.size(); i != e; ++i) {
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if (i) OS << ", ";
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OS << *Values[i];
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}
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OS << "]";
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}
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Init *VarInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
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BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
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if (T == 0) return 0; // Cannot subscript a non-bits variable...
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unsigned NumBits = T->getNumBits();
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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] >= NumBits) {
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delete BI;
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return 0;
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}
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BI->setBit(i, new VarBitInit(this, Bits[i]));
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}
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return BI;
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}
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Init *VarInit::resolveBitReference(Record &R, unsigned Bit) {
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if (R.isTemplateArg(getName()))
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return this;
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RecordVal *RV = R.getValue(getName());
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assert(RV && "Reference to a non-existant variable?");
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assert(dynamic_cast<BitsInit*>(RV->getValue()));
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BitsInit *BI = (BitsInit*)RV->getValue();
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assert(Bit < BI->getNumBits() && "Bit reference out of range!");
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Init *B = BI->getBit(Bit);
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if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
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return B; // Replace the VarBitInit with it.
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return this;
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}
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RecTy *VarInit::getFieldType(const std::string &FieldName) const {
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if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
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if (const RecordVal *RV = RTy->getRecord()->getValue(FieldName))
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return RV->getType();
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return 0;
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}
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Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
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if (RecordRecTy *RTy = dynamic_cast<RecordRecTy*>(getType()))
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if (const RecordVal *RV = R.getValue(VarName))
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if (Init *I = RV->getValue()->getFieldInit(R, FieldName))
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return I;
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else
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return 0;
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return 0;
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}
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/// resolveReferences - This method is used by classes that refer to other
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/// variables which may not be defined at the time they expression is formed.
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/// If a value is set for the variable later, this method will be called on
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/// users of the value to allow the value to propagate out.
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///
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Init *VarInit::resolveReferences(Record &R) {
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if (RecordVal *Val = R.getValue(VarName))
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if (!dynamic_cast<UnsetInit*>(Val->getValue()))
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return Val->getValue();
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return this;
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}
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Init *VarBitInit::resolveReferences(Record &R) {
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Init *I = getVariable()->resolveBitReference(R, getBitNum());
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if (I != getVariable())
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return I;
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return this;
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}
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RecTy *DefInit::getFieldType(const std::string &FieldName) const {
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if (const RecordVal *RV = Def->getValue(FieldName))
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return RV->getType();
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return 0;
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}
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Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
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return Def->getValue(FieldName)->getValue();
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}
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void DefInit::print(std::ostream &OS) const {
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OS << Def->getName();
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}
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Init *FieldInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
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BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
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if (T == 0) return 0; // Cannot subscript a non-bits field...
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unsigned NumBits = T->getNumBits();
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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] >= NumBits) {
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delete BI;
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return 0;
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}
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BI->setBit(i, new VarBitInit(this, Bits[i]));
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}
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return BI;
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}
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Init *FieldInit::resolveBitReference(Record &R, unsigned Bit) {
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Init *BitsVal = Rec->getFieldInit(R, FieldName);
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if (BitsVal)
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if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
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assert(Bit < BI->getNumBits() && "Bit reference out of range!");
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Init *B = BI->getBit(Bit);
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if (dynamic_cast<BitInit*>(B)) // If the bit is set...
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return B; // Replace the VarBitInit with it.
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}
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return this;
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}
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Init *FieldInit::resolveReferences(Record &R) {
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Init *BitsVal = Rec->getFieldInit(R, FieldName);
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if (BitsVal) {
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Init *BVR = BitsVal->resolveReferences(R);
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return BVR->isComplete() ? BVR : this;
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}
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return this;
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}
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//===----------------------------------------------------------------------===//
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// Other implementations
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//===----------------------------------------------------------------------===//
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RecordVal::RecordVal(const std::string &N, RecTy *T, unsigned P)
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: Name(N), Ty(T), Prefix(P) {
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Value = Ty->convertValue(new UnsetInit());
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assert(Value && "Cannot create unset value for current type!");
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}
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void RecordVal::dump() const { std::cerr << *this; }
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void RecordVal::print(std::ostream &OS, bool PrintSem) const {
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if (getPrefix()) OS << "field ";
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OS << *getType() << " " << getName();
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if (getValue()) {
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OS << " = " << *getValue();
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}
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if (PrintSem) OS << ";\n";
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}
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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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//
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void Record::resolveReferences() {
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for (unsigned i = 0, e = Values.size(); i != e; ++i)
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Values[i].setValue(Values[i].getValue()->resolveReferences(*this));
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}
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void Record::dump() const { std::cerr << *this; }
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std::ostream &operator<<(std::ostream &OS, const Record &R) {
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OS << R.getName();
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const std::vector<std::string> &TArgs = R.getTemplateArgs();
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if (!TArgs.empty()) {
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OS << "<";
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for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
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if (i) OS << ", ";
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const RecordVal *RV = R.getValue(TArgs[i]);
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assert(RV && "Template argument record not found??");
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RV->print(OS, false);
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}
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OS << ">";
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}
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OS << " {";
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const std::vector<Record*> &SC = R.getSuperClasses();
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if (!SC.empty()) {
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OS << "\t//";
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for (unsigned i = 0, e = SC.size(); i != e; ++i)
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OS << " " << SC[i]->getName();
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}
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OS << "\n";
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const std::vector<RecordVal> &Vals = R.getValues();
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for (unsigned i = 0, e = Vals.size(); i != e; ++i)
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if (Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
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OS << Vals[i];
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for (unsigned i = 0, e = Vals.size(); i != e; ++i)
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if (!Vals[i].getPrefix() && !R.isTemplateArg(Vals[i].getName()))
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OS << Vals[i];
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return OS << "}\n";
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}
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/// getValueInit - Return the initializer for a value with the specified name,
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/// or throw an exception if the field does not exist.
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///
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Init *Record::getValueInit(const std::string &FieldName) const {
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const RecordVal *R = getValue(FieldName);
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if (R == 0 || R->getValue() == 0)
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throw "Record '" + R->getName() + "' does not have a field named '" +
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FieldName + "!\n";
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return R->getValue();
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}
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/// getValueAsString - This method looks up the specified field and returns its
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/// value as a string, throwing an exception if the field does not exist or if
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/// the value is not a string.
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///
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std::string Record::getValueAsString(const std::string &FieldName) const {
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const RecordVal *R = getValue(FieldName);
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if (R == 0 || R->getValue() == 0)
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throw "Record '" + R->getName() + "' does not have a field named '" +
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FieldName + "!\n";
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if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
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|
return SI->getValue();
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' 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(const std::string &FieldName) const {
|
|
const RecordVal *R = getValue(FieldName);
|
|
if (R == 0 || R->getValue() == 0)
|
|
throw "Record '" + R->getName() + "' does not have a field named '" +
|
|
FieldName + "!\n";
|
|
|
|
if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
|
|
return BI;
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' 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(const std::string &FieldName) const {
|
|
const RecordVal *R = getValue(FieldName);
|
|
if (R == 0 || R->getValue() == 0)
|
|
throw "Record '" + R->getName() + "' does not have a field named '" +
|
|
FieldName + "!\n";
|
|
|
|
if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
|
|
return LI;
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' does not have a list initializer!";
|
|
}
|
|
|
|
/// getValueAsInt - This method looks up the specified field and returns its
|
|
/// value as an int, throwing an exception if the field does not exist or if
|
|
/// the value is not the right type.
|
|
///
|
|
int Record::getValueAsInt(const std::string &FieldName) const {
|
|
const RecordVal *R = getValue(FieldName);
|
|
if (R == 0 || R->getValue() == 0)
|
|
throw "Record '" + R->getName() + "' does not have a field named '" +
|
|
FieldName + "!\n";
|
|
|
|
if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
|
|
return II->getValue();
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' does not have a list initializer!";
|
|
}
|
|
|
|
/// 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(const std::string &FieldName) const {
|
|
const RecordVal *R = getValue(FieldName);
|
|
if (R == 0 || R->getValue() == 0)
|
|
throw "Record '" + R->getName() + "' does not have a field named '" +
|
|
FieldName + "!\n";
|
|
|
|
if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
|
|
return DI->getDef();
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' does not have a list 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(const std::string &FieldName) const {
|
|
const RecordVal *R = getValue(FieldName);
|
|
if (R == 0 || R->getValue() == 0)
|
|
throw "Record '" + R->getName() + "' does not have a field named '" +
|
|
FieldName + "!\n";
|
|
|
|
if (BitInit *DI = dynamic_cast<BitInit*>(R->getValue()))
|
|
return DI->getValue();
|
|
throw "Record '" + R->getName() + "', field '" + FieldName +
|
|
"' does not have a list initializer!";
|
|
}
|
|
|
|
|
|
void RecordKeeper::dump() const { std::cerr << *this; }
|
|
|
|
std::ostream &operator<<(std::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 = Records.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;
|
|
}
|