//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//===----------------------------------------------------------------------===//
#include "Record.h"
-#include "llvm/Support/DataTypes.h"
-#include "llvm/Support/Streams.h"
+#include "llvm/System/DataTypes.h"
+#include "llvm/Support/Format.h"
#include "llvm/ADT/StringExtras.h"
-#include <ios>
using namespace llvm;
// Type implementations
//===----------------------------------------------------------------------===//
-void RecTy::dump() const { print(*cerr.stream()); }
+void RecTy::dump() const { print(errs()); }
Init *BitRecTy::convertValue(BitsInit *BI) {
if (BI->getNumBits() != 1) return 0; // Only accept if just one bit!
}
Init *BitRecTy::convertValue(IntInit *II) {
- int Val = II->getValue();
+ int64_t Val = II->getValue();
if (Val != 0 && Val != 1) return 0; // Only accept 0 or 1 for a bit!
return new BitInit(Val != 0);
}
Init *IntRecTy::convertValue(BitsInit *BI) {
- int Result = 0;
+ int64_t Result = 0;
for (unsigned i = 0, e = BI->getNumBits(); i != e; ++i)
if (BitInit *Bit = dynamic_cast<BitInit*>(BI->getBit(i))) {
Result |= Bit->getValue() << i;
return 0;
}
+Init *StringRecTy::convertValue(UnOpInit *BO) {
+ if (BO->getOpcode() == UnOpInit::CAST) {
+ Init *L = BO->getOperand()->convertInitializerTo(this);
+ if (L == 0) return 0;
+ if (L != BO->getOperand())
+ return new UnOpInit(UnOpInit::CAST, L, new StringRecTy);
+ return BO;
+ }
+
+ return convertValue((TypedInit*)BO);
+}
+
Init *StringRecTy::convertValue(BinOpInit *BO) {
if (BO->getOpcode() == BinOpInit::STRCONCAT) {
Init *L = BO->getLHS()->convertInitializerTo(this);
Init *R = BO->getRHS()->convertInitializerTo(this);
if (L == 0 || R == 0) return 0;
if (L != BO->getLHS() || R != BO->getRHS())
- return new BinOpInit(BinOpInit::STRCONCAT, L, R);
+ return new BinOpInit(BinOpInit::STRCONCAT, L, R, new StringRecTy);
return BO;
}
- return 0;
+
+ return convertValue((TypedInit*)BO);
}
else
return 0;
- return new ListInit(Elements);
+ ListRecTy *LType = dynamic_cast<ListRecTy*>(LI->getType());
+ if (LType == 0) {
+ return 0;
+ }
+
+ return new ListInit(Elements, new ListRecTy(Ty));
}
Init *ListRecTy::convertValue(TypedInit *TI) {
return 0;
}
+Init *DagRecTy::convertValue(UnOpInit *BO) {
+ if (BO->getOpcode() == UnOpInit::CAST) {
+ Init *L = BO->getOperand()->convertInitializerTo(this);
+ if (L == 0) return 0;
+ if (L != BO->getOperand())
+ return new UnOpInit(UnOpInit::CAST, L, new DagRecTy);
+ return BO;
+ }
+ return 0;
+}
+
Init *DagRecTy::convertValue(BinOpInit *BO) {
if (BO->getOpcode() == BinOpInit::CONCAT) {
Init *L = BO->getLHS()->convertInitializerTo(this);
Init *R = BO->getRHS()->convertInitializerTo(this);
if (L == 0 || R == 0) return 0;
if (L != BO->getLHS() || R != BO->getRHS())
- return new BinOpInit(BinOpInit::CONCAT, L, R);
+ return new BinOpInit(BinOpInit::CONCAT, L, R, new DagRecTy);
return BO;
}
return 0;
}
bool RecordRecTy::baseClassOf(const RecordRecTy *RHS) const {
- return Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec);
+ if (Rec == RHS->getRecord() || RHS->getRecord()->isSubClassOf(Rec))
+ return true;
+
+ const std::vector<Record*> &SC = Rec->getSuperClasses();
+ for (unsigned i = 0, e = SC.size(); i != e; ++i)
+ if (RHS->getRecord()->isSubClassOf(SC[i]))
+ return true;
+
+ return false;
+}
+
+
+/// resolveTypes - Find a common type that T1 and T2 convert to.
+/// Return 0 if no such type exists.
+///
+RecTy *llvm::resolveTypes(RecTy *T1, RecTy *T2) {
+ if (!T1->typeIsConvertibleTo(T2)) {
+ if (!T2->typeIsConvertibleTo(T1)) {
+ // If one is a Record type, check superclasses
+ RecordRecTy *RecTy1 = dynamic_cast<RecordRecTy*>(T1);
+ if (RecTy1) {
+ // See if T2 inherits from a type T1 also inherits from
+ const std::vector<Record *> &T1SuperClasses =
+ RecTy1->getRecord()->getSuperClasses();
+ for(std::vector<Record *>::const_iterator i = T1SuperClasses.begin(),
+ iend = T1SuperClasses.end();
+ i != iend;
+ ++i) {
+ RecordRecTy *SuperRecTy1 = new RecordRecTy(*i);
+ RecTy *NewType1 = resolveTypes(SuperRecTy1, T2);
+ if (NewType1 != 0) {
+ if (NewType1 != SuperRecTy1) {
+ delete SuperRecTy1;
+ }
+ return NewType1;
+ }
+ }
+ }
+ RecordRecTy *RecTy2 = dynamic_cast<RecordRecTy*>(T2);
+ if (RecTy2) {
+ // See if T1 inherits from a type T2 also inherits from
+ const std::vector<Record *> &T2SuperClasses =
+ RecTy2->getRecord()->getSuperClasses();
+ for (std::vector<Record *>::const_iterator i = T2SuperClasses.begin(),
+ iend = T2SuperClasses.end();
+ i != iend;
+ ++i) {
+ RecordRecTy *SuperRecTy2 = new RecordRecTy(*i);
+ RecTy *NewType2 = resolveTypes(T1, SuperRecTy2);
+ if (NewType2 != 0) {
+ if (NewType2 != SuperRecTy2) {
+ delete SuperRecTy2;
+ }
+ return NewType2;
+ }
+ }
+ }
+ return 0;
+ }
+ return T2;
+ }
+ return T1;
}
// Initializer implementations
//===----------------------------------------------------------------------===//
-void Init::dump() const { return print(*cerr.stream()); }
+void Init::dump() const { return print(errs()); }
Init *BitsInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsInit *BI = new BitsInit(Bits.size());
}
std::string BitsInit::getAsString() const {
- //if (!printInHex(OS)) return;
- //if (!printAsVariable(OS)) return;
- //if (!printAsUnset(OS)) return;
-
std::string Result = "{ ";
for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
if (i) Result += ", ";
return Result + " }";
}
-bool BitsInit::printInHex(std::ostream &OS) const {
- // First, attempt to convert the value into an integer value...
- int Result = 0;
- for (unsigned i = 0, e = getNumBits(); i != e; ++i)
- if (BitInit *Bit = dynamic_cast<BitInit*>(getBit(i))) {
- Result |= Bit->getValue() << i;
- } else {
- return true;
- }
-
- OS << "0x" << std::hex << Result << std::dec;
- return false;
-}
-
-bool BitsInit::printAsVariable(std::ostream &OS) const {
- // Get the variable that we may be set equal to...
- assert(getNumBits() != 0);
- VarBitInit *FirstBit = dynamic_cast<VarBitInit*>(getBit(0));
- if (FirstBit == 0) return true;
- TypedInit *Var = FirstBit->getVariable();
-
- // Check to make sure the types are compatible.
- BitsRecTy *Ty = dynamic_cast<BitsRecTy*>(FirstBit->getVariable()->getType());
- if (Ty == 0) return true;
- if (Ty->getNumBits() != getNumBits()) return true; // Incompatible types!
-
- // Check to make sure all bits are referring to the right bits in the variable
- for (unsigned i = 0, e = getNumBits(); i != e; ++i) {
- VarBitInit *Bit = dynamic_cast<VarBitInit*>(getBit(i));
- if (Bit == 0 || Bit->getVariable() != Var || Bit->getBitNum() != i)
- return true;
- }
-
- Var->print(OS);
- return false;
-}
-
-bool BitsInit::printAsUnset(std::ostream &OS) const {
- for (unsigned i = 0, e = getNumBits(); i != e; ++i)
- if (!dynamic_cast<UnsetInit*>(getBit(i)))
- return true;
- OS << "?";
- return false;
-}
-
// resolveReferences - If there are any field references that refer to fields
// that have been filled in, we can propagate the values now.
//
BitsInit *BI = new BitsInit(Bits.size());
for (unsigned i = 0, e = Bits.size(); i != e; ++i) {
- if (Bits[i] >= 32) {
+ if (Bits[i] >= 64) {
delete BI;
return 0;
}
- BI->setBit(i, new BitInit(Value & (1 << Bits[i])));
+ BI->setBit(i, new BitInit(Value & (INT64_C(1) << Bits[i])));
}
return BI;
}
return 0;
Vals.push_back(getElement(Elements[i]));
}
- return new ListInit(Vals);
+ return new ListInit(Vals, getType());
}
Record *ListInit::getElementAsRecord(unsigned i) const {
}
if (Changed)
- return new ListInit(Resolved);
+ return new ListInit(Resolved, getType());
return this;
}
+Init *ListInit::resolveListElementReference(Record &R, const RecordVal *IRV,
+ unsigned Elt) {
+ if (Elt >= getSize())
+ return 0; // Out of range reference.
+ Init *E = getElement(Elt);
+ // If the element is set to some value, or if we are resolving a reference
+ // to a specific variable and that variable is explicitly unset, then
+ // replace the VarListElementInit with it.
+ if (IRV || !dynamic_cast<UnsetInit*>(E))
+ return E;
+ return 0;
+}
+
std::string ListInit::getAsString() const {
std::string Result = "[";
for (unsigned i = 0, e = Values.size(); i != e; ++i) {
return Result + "]";
}
-Init *BinOpInit::Fold() {
+Init *OpInit::resolveBitReference(Record &R, const RecordVal *IRV,
+ unsigned Bit) {
+ Init *Folded = Fold(&R, 0);
+
+ if (Folded != this) {
+ TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
+ if (Typed) {
+ return Typed->resolveBitReference(R, IRV, Bit);
+ }
+ }
+
+ return 0;
+}
+
+Init *OpInit::resolveListElementReference(Record &R, const RecordVal *IRV,
+ unsigned Elt) {
+ Init *Folded = Fold(&R, 0);
+
+ if (Folded != this) {
+ TypedInit *Typed = dynamic_cast<TypedInit *>(Folded);
+ if (Typed) {
+ return Typed->resolveListElementReference(R, IRV, Elt);
+ }
+ }
+
+ return 0;
+}
+
+Init *UnOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
+ switch (getOpcode()) {
+ default: assert(0 && "Unknown unop");
+ case CAST: {
+ if (getType()->getAsString() == "string") {
+ StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
+ if (LHSs) {
+ return LHSs;
+ }
+
+ DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
+ if (LHSd) {
+ return new StringInit(LHSd->getDef()->getName());
+ }
+ } else {
+ StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
+ if (LHSs) {
+ std::string Name = LHSs->getValue();
+
+ // From TGParser::ParseIDValue
+ if (CurRec) {
+ if (const RecordVal *RV = CurRec->getValue(Name)) {
+ if (RV->getType() != getType())
+ throw "type mismatch in cast";
+ return new VarInit(Name, RV->getType());
+ }
+
+ std::string TemplateArgName = CurRec->getName()+":"+Name;
+ if (CurRec->isTemplateArg(TemplateArgName)) {
+ const RecordVal *RV = CurRec->getValue(TemplateArgName);
+ assert(RV && "Template arg doesn't exist??");
+
+ if (RV->getType() != getType())
+ throw "type mismatch in cast";
+
+ return new VarInit(TemplateArgName, RV->getType());
+ }
+ }
+
+ if (CurMultiClass) {
+ std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
+ if (CurMultiClass->Rec.isTemplateArg(MCName)) {
+ const RecordVal *RV = CurMultiClass->Rec.getValue(MCName);
+ assert(RV && "Template arg doesn't exist??");
+
+ if (RV->getType() != getType())
+ throw "type mismatch in cast";
+
+ return new VarInit(MCName, RV->getType());
+ }
+ }
+
+ if (Record *D = Records.getDef(Name))
+ return new DefInit(D);
+
+ errs() << "Variable not defined: '" + Name + "'\n";
+ assert(0 && "Variable not found");
+ return 0;
+ }
+ }
+ break;
+ }
+ case CAR: {
+ ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
+ if (LHSl) {
+ if (LHSl->getSize() == 0) {
+ assert(0 && "Empty list in car");
+ return 0;
+ }
+ return LHSl->getElement(0);
+ }
+ break;
+ }
+ case CDR: {
+ ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
+ if (LHSl) {
+ if (LHSl->getSize() == 0) {
+ assert(0 && "Empty list in cdr");
+ return 0;
+ }
+ ListInit *Result = new ListInit(LHSl->begin()+1, LHSl->end(),
+ LHSl->getType());
+ return Result;
+ }
+ break;
+ }
+ case LNULL: {
+ ListInit *LHSl = dynamic_cast<ListInit*>(LHS);
+ if (LHSl) {
+ if (LHSl->getSize() == 0) {
+ return new IntInit(1);
+ } else {
+ return new IntInit(0);
+ }
+ }
+ StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
+ if (LHSs) {
+ if (LHSs->getValue().empty()) {
+ return new IntInit(1);
+ } else {
+ return new IntInit(0);
+ }
+ }
+
+ break;
+ }
+ }
+ return this;
+}
+
+Init *UnOpInit::resolveReferences(Record &R, const RecordVal *RV) {
+ Init *lhs = LHS->resolveReferences(R, RV);
+
+ if (LHS != lhs)
+ return (new UnOpInit(getOpcode(), lhs, getType()))->Fold(&R, 0);
+ return Fold(&R, 0);
+}
+
+std::string UnOpInit::getAsString() const {
+ std::string Result;
+ switch (Opc) {
+ case CAST: Result = "!cast<" + getType()->getAsString() + ">"; break;
+ case CAR: Result = "!car"; break;
+ case CDR: Result = "!cdr"; break;
+ case LNULL: Result = "!null"; break;
+ }
+ return Result + "(" + LHS->getAsString() + ")";
+}
+
+Init *BinOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
switch (getOpcode()) {
default: assert(0 && "Unknown binop");
case CONCAT: {
if (LHSs && RHSs) {
DefInit *LOp = dynamic_cast<DefInit*>(LHSs->getOperator());
DefInit *ROp = dynamic_cast<DefInit*>(RHSs->getOperator());
- if (LOp->getDef() != ROp->getDef()) {
- bool LIsOps =
- LOp->getDef()->getName() == "outs" ||
- LOp->getDef()->getName() != "ins" ||
- LOp->getDef()->getName() != "defs";
- bool RIsOps =
- ROp->getDef()->getName() == "outs" ||
- ROp->getDef()->getName() != "ins" ||
- ROp->getDef()->getName() != "defs";
- if (!LIsOps || !RIsOps)
- throw "Concated Dag operators do not match!";
- }
+ if (LOp == 0 || ROp == 0 || LOp->getDef() != ROp->getDef())
+ throw "Concated Dag operators do not match!";
std::vector<Init*> Args;
std::vector<std::string> ArgNames;
for (unsigned i = 0, e = LHSs->getNumArgs(); i != e; ++i) {
Args.push_back(RHSs->getArg(i));
ArgNames.push_back(RHSs->getArgName(i));
}
- return new DagInit(LHSs->getOperator(), Args, ArgNames);
+ return new DagInit(LHSs->getOperator(), "", Args, ArgNames);
}
break;
}
return new StringInit(LHSs->getValue() + RHSs->getValue());
break;
}
+ case EQ: {
+ // try to fold eq comparison for 'bit' and 'int', otherwise fallback
+ // to string objects.
+ IntInit* L =
+ dynamic_cast<IntInit*>(LHS->convertInitializerTo(new IntRecTy()));
+ IntInit* R =
+ dynamic_cast<IntInit*>(RHS->convertInitializerTo(new IntRecTy()));
+
+ if (L && R)
+ return new IntInit(L->getValue() == R->getValue());
+
+ StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
+ StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
+
+ // Make sure we've resolved
+ if (LHSs && RHSs)
+ return new IntInit(LHSs->getValue() == RHSs->getValue());
+
+ break;
+ }
case SHL:
case SRA:
case SRL: {
IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
IntInit *RHSi = dynamic_cast<IntInit*>(RHS);
if (LHSi && RHSi) {
- int LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
- int Result;
+ int64_t LHSv = LHSi->getValue(), RHSv = RHSi->getValue();
+ int64_t Result;
switch (getOpcode()) {
default: assert(0 && "Bad opcode!");
case SHL: Result = LHSv << RHSv; break;
case SRA: Result = LHSv >> RHSv; break;
- case SRL: Result = (unsigned)LHSv >> (unsigned)RHSv; break;
+ case SRL: Result = (uint64_t)LHSv >> (uint64_t)RHSv; break;
}
return new IntInit(Result);
}
Init *BinOpInit::resolveReferences(Record &R, const RecordVal *RV) {
Init *lhs = LHS->resolveReferences(R, RV);
Init *rhs = RHS->resolveReferences(R, RV);
-
+
if (LHS != lhs || RHS != rhs)
- return (new BinOpInit(getOpcode(), lhs, rhs))->Fold();
- return Fold();
+ return (new BinOpInit(getOpcode(), lhs, rhs, getType()))->Fold(&R, 0);
+ return Fold(&R, 0);
}
std::string BinOpInit::getAsString() const {
case SHL: Result = "!shl"; break;
case SRA: Result = "!sra"; break;
case SRL: Result = "!srl"; break;
+ case EQ: Result = "!eq"; break;
case STRCONCAT: Result = "!strconcat"; break;
}
return Result + "(" + LHS->getAsString() + ", " + RHS->getAsString() + ")";
}
+static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
+ Record *CurRec, MultiClass *CurMultiClass);
+
+static Init *EvaluateOperation(OpInit *RHSo, Init *LHS, Init *Arg,
+ RecTy *Type, Record *CurRec,
+ MultiClass *CurMultiClass) {
+ std::vector<Init *> NewOperands;
+
+ TypedInit *TArg = dynamic_cast<TypedInit*>(Arg);
+
+ // If this is a dag, recurse
+ if (TArg && TArg->getType()->getAsString() == "dag") {
+ Init *Result = ForeachHelper(LHS, Arg, RHSo, Type,
+ CurRec, CurMultiClass);
+ if (Result != 0) {
+ return Result;
+ } else {
+ return 0;
+ }
+ }
+
+ for (int i = 0; i < RHSo->getNumOperands(); ++i) {
+ OpInit *RHSoo = dynamic_cast<OpInit*>(RHSo->getOperand(i));
+
+ if (RHSoo) {
+ Init *Result = EvaluateOperation(RHSoo, LHS, Arg,
+ Type, CurRec, CurMultiClass);
+ if (Result != 0) {
+ NewOperands.push_back(Result);
+ } else {
+ NewOperands.push_back(Arg);
+ }
+ } else if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
+ NewOperands.push_back(Arg);
+ } else {
+ NewOperands.push_back(RHSo->getOperand(i));
+ }
+ }
+
+ // Now run the operator and use its result as the new leaf
+ OpInit *NewOp = RHSo->clone(NewOperands);
+ Init *NewVal = NewOp->Fold(CurRec, CurMultiClass);
+ if (NewVal != NewOp) {
+ delete NewOp;
+ return NewVal;
+ }
+ return 0;
+}
+
+static Init *ForeachHelper(Init *LHS, Init *MHS, Init *RHS, RecTy *Type,
+ Record *CurRec, MultiClass *CurMultiClass) {
+ DagInit *MHSd = dynamic_cast<DagInit*>(MHS);
+ ListInit *MHSl = dynamic_cast<ListInit*>(MHS);
+
+ DagRecTy *DagType = dynamic_cast<DagRecTy*>(Type);
+ ListRecTy *ListType = dynamic_cast<ListRecTy*>(Type);
+
+ OpInit *RHSo = dynamic_cast<OpInit*>(RHS);
+
+ if (!RHSo) {
+ errs() << "!foreach requires an operator\n";
+ assert(0 && "No operator for !foreach");
+ }
+
+ TypedInit *LHSt = dynamic_cast<TypedInit*>(LHS);
+
+ if (!LHSt) {
+ errs() << "!foreach requires typed variable\n";
+ assert(0 && "No typed variable for !foreach");
+ }
+
+ if ((MHSd && DagType) || (MHSl && ListType)) {
+ if (MHSd) {
+ Init *Val = MHSd->getOperator();
+ Init *Result = EvaluateOperation(RHSo, LHS, Val,
+ Type, CurRec, CurMultiClass);
+ if (Result != 0) {
+ Val = Result;
+ }
+
+ std::vector<std::pair<Init *, std::string> > args;
+ for (unsigned int i = 0; i < MHSd->getNumArgs(); ++i) {
+ Init *Arg;
+ std::string ArgName;
+ Arg = MHSd->getArg(i);
+ ArgName = MHSd->getArgName(i);
+
+ // Process args
+ Init *Result = EvaluateOperation(RHSo, LHS, Arg, Type,
+ CurRec, CurMultiClass);
+ if (Result != 0) {
+ Arg = Result;
+ }
+
+ // TODO: Process arg names
+ args.push_back(std::make_pair(Arg, ArgName));
+ }
+
+ return new DagInit(Val, "", args);
+ }
+ if (MHSl) {
+ std::vector<Init *> NewOperands;
+ std::vector<Init *> NewList(MHSl->begin(), MHSl->end());
+
+ for (ListInit::iterator li = NewList.begin(),
+ liend = NewList.end();
+ li != liend;
+ ++li) {
+ Init *Item = *li;
+ NewOperands.clear();
+ for(int i = 0; i < RHSo->getNumOperands(); ++i) {
+ // First, replace the foreach variable with the list item
+ if (LHS->getAsString() == RHSo->getOperand(i)->getAsString()) {
+ NewOperands.push_back(Item);
+ } else {
+ NewOperands.push_back(RHSo->getOperand(i));
+ }
+ }
+
+ // Now run the operator and use its result as the new list item
+ OpInit *NewOp = RHSo->clone(NewOperands);
+ Init *NewItem = NewOp->Fold(CurRec, CurMultiClass);
+ if (NewItem != NewOp) {
+ *li = NewItem;
+ delete NewOp;
+ }
+ }
+ return new ListInit(NewList, MHSl->getType());
+ }
+ }
+ return 0;
+}
+
+Init *TernOpInit::Fold(Record *CurRec, MultiClass *CurMultiClass) {
+ switch (getOpcode()) {
+ default: assert(0 && "Unknown binop");
+ case SUBST: {
+ DefInit *LHSd = dynamic_cast<DefInit*>(LHS);
+ VarInit *LHSv = dynamic_cast<VarInit*>(LHS);
+ StringInit *LHSs = dynamic_cast<StringInit*>(LHS);
+
+ DefInit *MHSd = dynamic_cast<DefInit*>(MHS);
+ VarInit *MHSv = dynamic_cast<VarInit*>(MHS);
+ StringInit *MHSs = dynamic_cast<StringInit*>(MHS);
+
+ DefInit *RHSd = dynamic_cast<DefInit*>(RHS);
+ VarInit *RHSv = dynamic_cast<VarInit*>(RHS);
+ StringInit *RHSs = dynamic_cast<StringInit*>(RHS);
+
+ if ((LHSd && MHSd && RHSd)
+ || (LHSv && MHSv && RHSv)
+ || (LHSs && MHSs && RHSs)) {
+ if (RHSd) {
+ Record *Val = RHSd->getDef();
+ if (LHSd->getAsString() == RHSd->getAsString()) {
+ Val = MHSd->getDef();
+ }
+ return new DefInit(Val);
+ }
+ if (RHSv) {
+ std::string Val = RHSv->getName();
+ if (LHSv->getAsString() == RHSv->getAsString()) {
+ Val = MHSv->getName();
+ }
+ return new VarInit(Val, getType());
+ }
+ if (RHSs) {
+ std::string Val = RHSs->getValue();
+
+ std::string::size_type found;
+ std::string::size_type idx = 0;
+ do {
+ found = Val.find(LHSs->getValue(), idx);
+ if (found != std::string::npos) {
+ Val.replace(found, LHSs->getValue().size(), MHSs->getValue());
+ }
+ idx = found + MHSs->getValue().size();
+ } while (found != std::string::npos);
+
+ return new StringInit(Val);
+ }
+ }
+ break;
+ }
+
+ case FOREACH: {
+ Init *Result = ForeachHelper(LHS, MHS, RHS, getType(),
+ CurRec, CurMultiClass);
+ if (Result != 0) {
+ return Result;
+ }
+ break;
+ }
+
+ case IF: {
+ IntInit *LHSi = dynamic_cast<IntInit*>(LHS);
+ if (Init *I = LHS->convertInitializerTo(new IntRecTy()))
+ LHSi = dynamic_cast<IntInit*>(I);
+ if (LHSi) {
+ if (LHSi->getValue()) {
+ return MHS;
+ } else {
+ return RHS;
+ }
+ }
+ break;
+ }
+ }
+
+ return this;
+}
+
+Init *TernOpInit::resolveReferences(Record &R, const RecordVal *RV) {
+ Init *lhs = LHS->resolveReferences(R, RV);
+
+ if (Opc == IF && lhs != LHS) {
+ IntInit *Value = dynamic_cast<IntInit*>(lhs);
+ if (Init *I = lhs->convertInitializerTo(new IntRecTy()))
+ Value = dynamic_cast<IntInit*>(I);
+ if (Value != 0) {
+ // Short-circuit
+ if (Value->getValue()) {
+ Init *mhs = MHS->resolveReferences(R, RV);
+ return (new TernOpInit(getOpcode(), lhs, mhs,
+ RHS, getType()))->Fold(&R, 0);
+ } else {
+ Init *rhs = RHS->resolveReferences(R, RV);
+ return (new TernOpInit(getOpcode(), lhs, MHS,
+ rhs, getType()))->Fold(&R, 0);
+ }
+ }
+ }
+
+ Init *mhs = MHS->resolveReferences(R, RV);
+ Init *rhs = RHS->resolveReferences(R, RV);
+
+ if (LHS != lhs || MHS != mhs || RHS != rhs)
+ return (new TernOpInit(getOpcode(), lhs, mhs, rhs, getType()))->Fold(&R, 0);
+ return Fold(&R, 0);
+}
+
+std::string TernOpInit::getAsString() const {
+ std::string Result;
+ switch (Opc) {
+ case SUBST: Result = "!subst"; break;
+ case FOREACH: Result = "!foreach"; break;
+ case IF: Result = "!if"; break;
+ }
+ return Result + "(" + LHS->getAsString() + ", " + MHS->getAsString() + ", "
+ + RHS->getAsString() + ")";
+}
+
+RecTy *TypedInit::getFieldType(const std::string &FieldName) const {
+ RecordRecTy *RecordType = dynamic_cast<RecordRecTy *>(getType());
+ if (RecordType) {
+ RecordVal *Field = RecordType->getRecord()->getValue(FieldName);
+ if (Field) {
+ return Field->getType();
+ }
+ }
+ return 0;
+}
+
Init *TypedInit::convertInitializerBitRange(const std::vector<unsigned> &Bits) {
BitsRecTy *T = dynamic_cast<BitsRecTy*>(getType());
if (T == 0) return 0; // Cannot subscript a non-bits variable...
ListInits.reserve(Elements.size());
for (unsigned i = 0, e = Elements.size(); i != e; ++i)
ListInits.push_back(new VarListElementInit(this, Elements[i]));
- return new ListInit(ListInits);
+ return new ListInit(ListInits, T);
}
if (IRV && IRV->getName() != getName()) return 0;
RecordVal *RV = R.getValue(getName());
- assert(RV && "Reference to a non-existant variable?");
+ assert(RV && "Reference to a non-existent variable?");
assert(dynamic_cast<BitsInit*>(RV->getValue()));
BitsInit *BI = (BitsInit*)RV->getValue();
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
Init *B = BI->getBit(Bit);
- if (!dynamic_cast<UnsetInit*>(B)) // If the bit is not set...
- return B; // Replace the VarBitInit with it.
+ // If the bit is set to some value, or if we are resolving a reference to a
+ // specific variable and that variable is explicitly unset, then replace the
+ // VarBitInit with it.
+ if (IRV || !dynamic_cast<UnsetInit*>(B))
+ return B;
return 0;
}
if (IRV && IRV->getName() != getName()) return 0;
RecordVal *RV = R.getValue(getName());
- assert(RV && "Reference to a non-existant variable?");
+ assert(RV && "Reference to a non-existent variable?");
ListInit *LI = dynamic_cast<ListInit*>(RV->getValue());
- assert(LI && "Invalid list element!");
+ if (!LI) {
+ VarInit *VI = dynamic_cast<VarInit*>(RV->getValue());
+ assert(VI && "Invalid list element!");
+ return new VarListElementInit(VI, Elt);
+ }
if (Elt >= LI->getSize())
return 0; // Out of range reference.
Init *E = LI->getElement(Elt);
- if (!dynamic_cast<UnsetInit*>(E)) // If the element is set
- return E; // Replace the VarListElementInit with it.
+ // If the element is set to some value, or if we are resolving a reference
+ // to a specific variable and that variable is explicitly unset, then
+ // replace the VarListElementInit with it.
+ if (IRV || !dynamic_cast<UnsetInit*>(E))
+ return E;
return 0;
}
return 0;
}
-Init *VarInit::getFieldInit(Record &R, const std::string &FieldName) const {
+Init *VarInit::getFieldInit(Record &R, const RecordVal *RV,
+ const std::string &FieldName) const {
if (dynamic_cast<RecordRecTy*>(getType()))
- if (const RecordVal *RV = R.getValue(VarName)) {
- Init *TheInit = RV->getValue();
+ if (const RecordVal *Val = R.getValue(VarName)) {
+ if (RV != Val && (RV || dynamic_cast<UnsetInit*>(Val->getValue())))
+ return 0;
+ Init *TheInit = Val->getValue();
assert(TheInit != this && "Infinite loop detected!");
- if (Init *I = TheInit->getFieldInit(R, FieldName))
+ if (Init *I = TheInit->getFieldInit(R, RV, FieldName))
return I;
else
return 0;
}
/// resolveReferences - This method is used by classes that refer to other
-/// variables which may not be defined at the time they expression is formed.
+/// variables which may not be defined at the time the expression is formed.
/// If a value is set for the variable later, this method will be called on
/// users of the value to allow the value to propagate out.
///
return 0;
}
-Init *DefInit::getFieldInit(Record &R, const std::string &FieldName) const {
+Init *DefInit::getFieldInit(Record &R, const RecordVal *RV,
+ const std::string &FieldName) const {
return Def->getValue(FieldName)->getValue();
}
Init *FieldInit::resolveBitReference(Record &R, const RecordVal *RV,
unsigned Bit) {
- if (Init *BitsVal = Rec->getFieldInit(R, FieldName))
+ if (Init *BitsVal = Rec->getFieldInit(R, RV, FieldName))
if (BitsInit *BI = dynamic_cast<BitsInit*>(BitsVal)) {
assert(Bit < BI->getNumBits() && "Bit reference out of range!");
Init *B = BI->getBit(Bit);
Init *FieldInit::resolveListElementReference(Record &R, const RecordVal *RV,
unsigned Elt) {
- if (Init *ListVal = Rec->getFieldInit(R, FieldName))
+ if (Init *ListVal = Rec->getFieldInit(R, RV, FieldName))
if (ListInit *LI = dynamic_cast<ListInit*>(ListVal)) {
if (Elt >= LI->getSize()) return 0;
Init *E = LI->getElement(Elt);
- if (!dynamic_cast<UnsetInit*>(E)) // If the bit is set...
- return E; // Replace the VarListElementInit with it.
+ // If the element is set to some value, or if we are resolving a
+ // reference to a specific variable and that variable is explicitly
+ // unset, then replace the VarListElementInit with it.
+ if (RV || !dynamic_cast<UnsetInit*>(E))
+ return E;
}
return 0;
}
Init *FieldInit::resolveReferences(Record &R, const RecordVal *RV) {
Init *NewRec = RV ? Rec->resolveReferences(R, RV) : Rec;
- Init *BitsVal = NewRec->getFieldInit(R, FieldName);
+ Init *BitsVal = NewRec->getFieldInit(R, RV, FieldName);
if (BitsVal) {
Init *BVR = BitsVal->resolveReferences(R, RV);
return BVR->isComplete() ? BVR : this;
}
if (NewRec != Rec) {
- dump();
- NewRec->dump(); cerr << "\n";
return new FieldInit(NewRec, FieldName);
}
return this;
std::vector<Init*> NewArgs;
for (unsigned i = 0, e = Args.size(); i != e; ++i)
NewArgs.push_back(Args[i]->resolveReferences(R, RV));
-
+
Init *Op = Val->resolveReferences(R, RV);
-
+
if (Args != NewArgs || Op != Val)
- return new DagInit(Op, NewArgs, ArgNames);
-
+ return new DagInit(Op, ValName, NewArgs, ArgNames);
+
return this;
}
std::string DagInit::getAsString() const {
std::string Result = "(" + Val->getAsString();
+ if (!ValName.empty())
+ Result += ":" + ValName;
if (Args.size()) {
Result += " " + Args[0]->getAsString();
if (!ArgNames[0].empty()) Result += ":$" + ArgNames[0];
assert(Value && "Cannot create unset value for current type!");
}
-void RecordVal::dump() const { cerr << *this; }
+void RecordVal::dump() const { errs() << *this; }
-void RecordVal::print(std::ostream &OS, bool PrintSem) const {
+void RecordVal::print(raw_ostream &OS, bool PrintSem) const {
if (getPrefix()) OS << "field ";
OS << *getType() << " " << getName();
if (PrintSem) OS << ";\n";
}
+unsigned Record::LastID = 0;
+
void Record::setName(const std::string &Name) {
if (Records.getDef(getName()) == this) {
Records.removeDef(getName());
}
}
+void Record::dump() const { errs() << *this; }
-void Record::dump() const { cerr << *this; }
-
-std::ostream &llvm::operator<<(std::ostream &OS, const Record &R) {
+raw_ostream &llvm::operator<<(raw_ostream &OS, const Record &R) {
OS << R.getName();
const std::vector<std::string> &TArgs = R.getTemplateArgs();
/// getValueInit - Return the initializer for a value with the specified name,
/// or throw an exception if the field does not exist.
///
-Init *Record::getValueInit(const std::string &FieldName) const {
+Init *Record::getValueInit(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
return R->getValue();
}
/// value as a string, throwing an exception if the field does not exist or if
/// the value is not a string.
///
-std::string Record::getValueAsString(const std::string &FieldName) const {
+std::string Record::getValueAsString(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (const StringInit *SI = dynamic_cast<const StringInit*>(R->getValue()))
return SI->getValue();
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a string initializer!";
}
/// 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 {
+BitsInit *Record::getValueAsBitsInit(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (BitsInit *BI = dynamic_cast<BitsInit*>(R->getValue()))
return BI;
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a BitsInit initializer!";
}
/// 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 {
+ListInit *Record::getValueAsListInit(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (ListInit *LI = dynamic_cast<ListInit*>(R->getValue()))
return LI;
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a list initializer!";
}
/// its value as a vector of records, throwing an exception if the field does
/// not exist or if the value is not the right type.
///
-std::vector<Record*>
-Record::getValueAsListOfDefs(const std::string &FieldName) const {
+std::vector<Record*>
+Record::getValueAsListOfDefs(StringRef FieldName) const {
ListInit *List = getValueAsListInit(FieldName);
std::vector<Record*> Defs;
for (unsigned i = 0; i < List->getSize(); i++) {
if (DefInit *DI = dynamic_cast<DefInit*>(List->getElement(i))) {
Defs.push_back(DI->getDef());
} else {
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' list is not entirely DefInit!";
}
}
}
/// 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
+/// value as an int64_t, 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 {
+int64_t Record::getValueAsInt(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (IntInit *II = dynamic_cast<IntInit*>(R->getValue()))
return II->getValue();
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have an int initializer!";
}
/// its value as a vector of integers, throwing an exception if the field does
/// not exist or if the value is not the right type.
///
-std::vector<int>
-Record::getValueAsListOfInts(const std::string &FieldName) const {
+std::vector<int64_t>
+Record::getValueAsListOfInts(StringRef FieldName) const {
ListInit *List = getValueAsListInit(FieldName);
- std::vector<int> Ints;
+ std::vector<int64_t> Ints;
for (unsigned i = 0; i < List->getSize(); i++) {
if (IntInit *II = dynamic_cast<IntInit*>(List->getElement(i))) {
Ints.push_back(II->getValue());
} else {
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a list of ints initializer!";
}
}
/// 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 {
+Record *Record::getValueAsDef(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (DefInit *DI = dynamic_cast<DefInit*>(R->getValue()))
return DI->getDef();
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a def initializer!";
}
/// 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 {
+bool Record::getValueAsBit(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (BitInit *BI = dynamic_cast<BitInit*>(R->getValue()))
return BI->getValue();
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a bit initializer!";
}
/// value as an Dag, throwing an exception if the field does not exist or if
/// the value is not the right type.
///
-DagInit *Record::getValueAsDag(const std::string &FieldName) const {
+DagInit *Record::getValueAsDag(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
+ FieldName.str() + "'!\n";
if (DagInit *DI = dynamic_cast<DagInit*>(R->getValue()))
return DI;
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a dag initializer!";
}
-std::string Record::getValueAsCode(const std::string &FieldName) const {
+std::string Record::getValueAsCode(StringRef FieldName) const {
const RecordVal *R = getValue(FieldName);
if (R == 0 || R->getValue() == 0)
throw "Record `" + getName() + "' does not have a field named `" +
- FieldName + "'!\n";
-
+ FieldName.str() + "'!\n";
+
if (const CodeInit *CI = dynamic_cast<const CodeInit*>(R->getValue()))
return CI->getValue();
- throw "Record `" + getName() + "', field `" + FieldName +
+ throw "Record `" + getName() + "', field `" + FieldName.str() +
"' does not have a code initializer!";
}
-void RecordKeeper::dump() const { cerr << *this; }
+void MultiClass::dump() const {
+ errs() << "Record:\n";
+ Rec.dump();
+
+ errs() << "Defs:\n";
+ for (RecordVector::const_iterator r = DefPrototypes.begin(),
+ rend = DefPrototypes.end();
+ r != rend;
+ ++r) {
+ (*r)->dump();
+ }
+}
+
+
+void RecordKeeper::dump() const { errs() << *this; }
-std::ostream &llvm::operator<<(std::ostream &OS, const RecordKeeper &RK) {
+raw_ostream &llvm::operator<<(raw_ostream &OS, const RecordKeeper &RK) {
OS << "------------- Classes -----------------\n";
const std::map<std::string, Record*> &Classes = RK.getClasses();
for (std::map<std::string, Record*>::const_iterator I = Classes.begin(),