SMRange RefRange;
Record *Rec;
std::vector<Init*> TemplateArgs;
- SubClassReference() : Rec(0) {}
+ SubClassReference() : Rec(nullptr) {}
- bool isInvalid() const { return Rec == 0; }
+ bool isInvalid() const { return Rec == nullptr; }
};
struct SubMultiClassReference {
SMRange RefRange;
MultiClass *MC;
std::vector<Init*> TemplateArgs;
- SubMultiClassReference() : MC(0) {}
+ SubMultiClassReference() : MC(nullptr) {}
- bool isInvalid() const { return MC == 0; }
+ bool isInvalid() const { return MC == nullptr; }
void dump() const;
};
} // end namespace llvm
bool TGParser::AddValue(Record *CurRec, SMLoc Loc, const RecordVal &RV) {
- if (CurRec == 0)
+ if (!CurRec)
CurRec = &CurMultiClass->Rec;
if (RecordVal *ERV = CurRec->getValue(RV.getNameInit())) {
const std::vector<unsigned> &BitList, Init *V) {
if (!V) return false;
- if (CurRec == 0) CurRec = &CurMultiClass->Rec;
+ if (!CurRec) CurRec = &CurMultiClass->Rec;
RecordVal *RV = CurRec->getValue(ValName);
- if (RV == 0)
+ if (!RV)
return Error(Loc, "Value '" + ValName->getAsUnquotedString()
+ "' unknown!");
//
if (!BitList.empty()) {
BitsInit *CurVal = dyn_cast<BitsInit>(RV->getValue());
- if (CurVal == 0)
+ if (!CurVal)
return Error(Loc, "Value '" + ValName->getAsUnquotedString()
+ "' is not a bits type");
// Convert the incoming value to a bits type of the appropriate size...
Init *BI = V->convertInitializerTo(BitsRecTy::get(BitList.size()));
- if (BI == 0) {
+ if (!BI) {
return Error(Loc, "Initializer is not compatible with bit range");
}
// We should have a BitsInit type now.
BitsInit *BInit = dyn_cast<BitsInit>(BI);
- assert(BInit != 0);
+ assert(BInit != nullptr);
SmallVector<Init *, 16> NewBits(CurVal->getNumBits());
}
for (unsigned i = 0, e = CurVal->getNumBits(); i != e; ++i)
- if (NewBits[i] == 0)
+ if (!NewBits[i])
NewBits[i] = CurVal->getBit(i);
V = BitsInit::get(NewBits);
assert(IterVals.size() < Loops.size());
ForeachLoop &CurLoop = Loops[IterVals.size()];
ListInit *List = dyn_cast<ListInit>(CurLoop.ListValue);
- if (List == 0) {
+ if (!List) {
Error(Loc, "Loop list is not a list");
return true;
}
// Process each value.
for (int64_t i = 0; i < List->getSize(); ++i) {
- Init *ItemVal = List->resolveListElementReference(*CurRec, 0, i);
+ Init *ItemVal = List->resolveListElementReference(*CurRec, nullptr, i);
IterVals.push_back(IterRecord(CurLoop.IterVar, ItemVal));
if (ProcessForeachDefs(CurRec, Loc, IterVals))
return true;
for (unsigned i = 0, e = IterVals.size(); i != e; ++i) {
VarInit *IterVar = IterVals[i].IterVar;
TypedInit *IVal = dyn_cast<TypedInit>(IterVals[i].IterValue);
- if (IVal == 0) {
+ if (!IVal) {
Error(Loc, "foreach iterator value is untyped");
return true;
}
K == tgtok::MultiClass || K == tgtok::Foreach;
}
-static std::string GetNewAnonymousName() {
- static unsigned AnonCounter = 0;
+/// GetNewAnonymousName - Generate a unique anonymous name that can be used as
+/// an identifier.
+std::string TGParser::GetNewAnonymousName() {
unsigned Tmp = AnonCounter++; // MSVC2012 ICEs without this.
- return "anonymous." + utostr(Tmp);
+ return "anonymous_" + utostr(Tmp);
}
/// ParseObjectName - If an object name is specified, return it. Otherwise,
// These are all of the tokens that can begin an object body.
// Some of these can also begin values but we disallow those cases
// because they are unlikely to be useful.
- return 0;
+ return nullptr;
default:
break;
}
- Record *CurRec = 0;
+ Record *CurRec = nullptr;
if (CurMultiClass)
CurRec = &CurMultiClass->Rec;
- RecTy *Type = 0;
+ RecTy *Type = nullptr;
if (CurRec) {
const TypedInit *CurRecName = dyn_cast<TypedInit>(CurRec->getNameInit());
if (!CurRecName) {
TokError("Record name is not typed!");
- return 0;
+ return nullptr;
}
Type = CurRecName->getType();
}
Record *TGParser::ParseClassID() {
if (Lex.getCode() != tgtok::Id) {
TokError("expected name for ClassID");
- return 0;
+ return nullptr;
}
Record *Result = Records.getClass(Lex.getCurStrVal());
- if (Result == 0)
+ if (!Result)
TokError("Couldn't find class '" + Lex.getCurStrVal() + "'");
Lex.Lex();
MultiClass *TGParser::ParseMultiClassID() {
if (Lex.getCode() != tgtok::Id) {
TokError("expected name for MultiClassID");
- return 0;
+ return nullptr;
}
MultiClass *Result = MultiClasses[Lex.getCurStrVal()];
- if (Result == 0)
+ if (!Result)
TokError("Couldn't find multiclass '" + Lex.getCurStrVal() + "'");
Lex.Lex();
} else {
Result.Rec = ParseClassID();
}
- if (Result.Rec == 0) return Result;
+ if (!Result.Rec) return Result;
// If there is no template arg list, we're done.
if (Lex.getCode() != tgtok::less) {
if (Lex.getCode() == tgtok::greater) {
TokError("subclass reference requires a non-empty list of template values");
- Result.Rec = 0;
+ Result.Rec = nullptr;
return Result;
}
Result.TemplateArgs = ParseValueList(CurRec, Result.Rec);
if (Result.TemplateArgs.empty()) {
- Result.Rec = 0; // Error parsing value list.
+ Result.Rec = nullptr; // Error parsing value list.
return Result;
}
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' in template value list");
- Result.Rec = 0;
+ Result.Rec = nullptr;
return Result;
}
Lex.Lex();
Result.RefRange.Start = Lex.getLoc();
Result.MC = ParseMultiClassID();
- if (Result.MC == 0) return Result;
+ if (!Result.MC) return Result;
// If there is no template arg list, we're done.
if (Lex.getCode() != tgtok::less) {
if (Lex.getCode() == tgtok::greater) {
TokError("subclass reference requires a non-empty list of template values");
- Result.MC = 0;
+ Result.MC = nullptr;
return Result;
}
Result.TemplateArgs = ParseValueList(&CurMC->Rec, &Result.MC->Rec);
if (Result.TemplateArgs.empty()) {
- Result.MC = 0; // Error parsing value list.
+ Result.MC = nullptr; // Error parsing value list.
return Result;
}
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' in template value list");
- Result.MC = 0;
+ Result.MC = nullptr;
return Result;
}
Lex.Lex();
///
RecTy *TGParser::ParseType() {
switch (Lex.getCode()) {
- default: TokError("Unknown token when expecting a type"); return 0;
+ default: TokError("Unknown token when expecting a type"); return nullptr;
case tgtok::String: Lex.Lex(); return StringRecTy::get();
case tgtok::Code: Lex.Lex(); return StringRecTy::get();
case tgtok::Bit: Lex.Lex(); return BitRecTy::get();
case tgtok::Dag: Lex.Lex(); return DagRecTy::get();
case tgtok::Id:
if (Record *R = ParseClassID()) return RecordRecTy::get(R);
- return 0;
+ return nullptr;
case tgtok::Bits: {
if (Lex.Lex() != tgtok::less) { // Eat 'bits'
TokError("expected '<' after bits type");
- return 0;
+ return nullptr;
}
if (Lex.Lex() != tgtok::IntVal) { // Eat '<'
TokError("expected integer in bits<n> type");
- return 0;
+ return nullptr;
}
uint64_t Val = Lex.getCurIntVal();
if (Lex.Lex() != tgtok::greater) { // Eat count.
TokError("expected '>' at end of bits<n> type");
- return 0;
+ return nullptr;
}
Lex.Lex(); // Eat '>'
return BitsRecTy::get(Val);
case tgtok::List: {
if (Lex.Lex() != tgtok::less) { // Eat 'bits'
TokError("expected '<' after list type");
- return 0;
+ return nullptr;
}
Lex.Lex(); // Eat '<'
RecTy *SubType = ParseType();
- if (SubType == 0) return 0;
+ if (!SubType) return nullptr;
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of list<ty> type");
- return 0;
+ return nullptr;
}
Lex.Lex(); // Eat '>'
return ListRecTy::get(SubType);
}
}
-/// ParseIDValue - Parse an ID as a value and decode what it means.
-///
-/// IDValue ::= ID [def local value]
-/// IDValue ::= ID [def template arg]
-/// IDValue ::= ID [multiclass local value]
-/// IDValue ::= ID [multiclass template argument]
-/// IDValue ::= ID [def name]
-///
-Init *TGParser::ParseIDValue(Record *CurRec, IDParseMode Mode) {
- assert(Lex.getCode() == tgtok::Id && "Expected ID in ParseIDValue");
- std::string Name = Lex.getCurStrVal();
- SMLoc Loc = Lex.getLoc();
- Lex.Lex();
- return ParseIDValue(CurRec, Name, Loc);
-}
-
/// ParseIDValue - This is just like ParseIDValue above, but it assumes the ID
/// has already been read.
Init *TGParser::ParseIDValue(Record *CurRec,
if (Mode == ParseValueMode) {
Error(NameLoc, "Variable not defined: '" + Name + "'");
- return 0;
+ return nullptr;
}
return StringInit::get(Name);
switch (Lex.getCode()) {
default:
TokError("unknown operation");
- return 0;
+ return nullptr;
case tgtok::XHead:
case tgtok::XTail:
case tgtok::XEmpty:
case tgtok::XCast: { // Value ::= !unop '(' Value ')'
UnOpInit::UnaryOp Code;
- RecTy *Type = 0;
+ RecTy *Type = nullptr;
switch (Lex.getCode()) {
default: llvm_unreachable("Unhandled code!");
Type = ParseOperatorType();
- if (Type == 0) {
+ if (!Type) {
TokError("did not get type for unary operator");
- return 0;
+ return nullptr;
}
break;
}
if (Lex.getCode() != tgtok::l_paren) {
TokError("expected '(' after unary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '('
Init *LHS = ParseValue(CurRec);
- if (LHS == 0) return 0;
+ if (!LHS) return nullptr;
if (Code == UnOpInit::HEAD
|| Code == UnOpInit::TAIL
ListInit *LHSl = dyn_cast<ListInit>(LHS);
StringInit *LHSs = dyn_cast<StringInit>(LHS);
TypedInit *LHSt = dyn_cast<TypedInit>(LHS);
- if (LHSl == 0 && LHSs == 0 && LHSt == 0) {
+ if (!LHSl && !LHSs && !LHSt) {
TokError("expected list or string type argument in unary operator");
- return 0;
+ return nullptr;
}
if (LHSt) {
ListRecTy *LType = dyn_cast<ListRecTy>(LHSt->getType());
StringRecTy *SType = dyn_cast<StringRecTy>(LHSt->getType());
- if (LType == 0 && SType == 0) {
+ if (!LType && !SType) {
TokError("expected list or string type argumnet in unary operator");
- return 0;
+ return nullptr;
}
}
if (Code == UnOpInit::HEAD
|| Code == UnOpInit::TAIL) {
- if (LHSl == 0 && LHSt == 0) {
+ if (!LHSl && !LHSt) {
TokError("expected list type argumnet in unary operator");
- return 0;
+ return nullptr;
}
if (LHSl && LHSl->getSize() == 0) {
TokError("empty list argument in unary operator");
- return 0;
+ return nullptr;
}
if (LHSl) {
Init *Item = LHSl->getElement(0);
TypedInit *Itemt = dyn_cast<TypedInit>(Item);
- if (Itemt == 0) {
+ if (!Itemt) {
TokError("untyped list element in unary operator");
- return 0;
+ return nullptr;
}
if (Code == UnOpInit::HEAD) {
Type = Itemt->getType();
} else {
assert(LHSt && "expected list type argument in unary operator");
ListRecTy *LType = dyn_cast<ListRecTy>(LHSt->getType());
- if (LType == 0) {
+ if (!LType) {
TokError("expected list type argumnet in unary operator");
- return 0;
+ return nullptr;
}
if (Code == UnOpInit::HEAD) {
Type = LType->getElementType();
if (Lex.getCode() != tgtok::r_paren) {
TokError("expected ')' in unary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ')'
return (UnOpInit::get(Code, LHS, Type))->Fold(CurRec, CurMultiClass);
Lex.Lex(); // eat the operation
BinOpInit::BinaryOp Code;
- RecTy *Type = 0;
+ RecTy *Type = nullptr;
switch (OpTok) {
default: llvm_unreachable("Unhandled code!");
if (Lex.getCode() != tgtok::l_paren) {
TokError("expected '(' after binary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '('
SmallVector<Init*, 2> InitList;
InitList.push_back(ParseValue(CurRec));
- if (InitList.back() == 0) return 0;
+ if (!InitList.back()) return nullptr;
while (Lex.getCode() == tgtok::comma) {
Lex.Lex(); // eat the ','
InitList.push_back(ParseValue(CurRec));
- if (InitList.back() == 0) return 0;
+ if (!InitList.back()) return nullptr;
}
if (Lex.getCode() != tgtok::r_paren) {
TokError("expected ')' in operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ')'
->Fold(CurRec, CurMultiClass);
Error(OpLoc, "expected two operands to operator");
- return 0;
+ return nullptr;
}
case tgtok::XIf:
case tgtok::XForEach:
case tgtok::XSubst: { // Value ::= !ternop '(' Value ',' Value ',' Value ')'
TernOpInit::TernaryOp Code;
- RecTy *Type = 0;
+ RecTy *Type = nullptr;
tgtok::TokKind LexCode = Lex.getCode();
Lex.Lex(); // eat the operation
}
if (Lex.getCode() != tgtok::l_paren) {
TokError("expected '(' after ternary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '('
Init *LHS = ParseValue(CurRec);
- if (LHS == 0) return 0;
+ if (!LHS) return nullptr;
if (Lex.getCode() != tgtok::comma) {
TokError("expected ',' in ternary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ','
Init *MHS = ParseValue(CurRec);
- if (MHS == 0) return 0;
+ if (!MHS) return nullptr;
if (Lex.getCode() != tgtok::comma) {
TokError("expected ',' in ternary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ','
Init *RHS = ParseValue(CurRec);
- if (RHS == 0) return 0;
+ if (!RHS) return nullptr;
if (Lex.getCode() != tgtok::r_paren) {
TokError("expected ')' in binary operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ')'
switch (LexCode) {
default: llvm_unreachable("Unhandled code!");
case tgtok::XIf: {
- RecTy *MHSTy = 0;
- RecTy *RHSTy = 0;
+ RecTy *MHSTy = nullptr;
+ RecTy *RHSTy = nullptr;
if (TypedInit *MHSt = dyn_cast<TypedInit>(MHS))
MHSTy = MHSt->getType();
if (!MHSTy || !RHSTy) {
TokError("could not get type for !if");
- return 0;
+ return nullptr;
}
if (MHSTy->typeIsConvertibleTo(RHSTy)) {
Type = MHSTy;
} else {
TokError("inconsistent types for !if");
- return 0;
+ return nullptr;
}
break;
}
case tgtok::XForEach: {
TypedInit *MHSt = dyn_cast<TypedInit>(MHS);
- if (MHSt == 0) {
+ if (!MHSt) {
TokError("could not get type for !foreach");
- return 0;
+ return nullptr;
}
Type = MHSt->getType();
break;
}
case tgtok::XSubst: {
TypedInit *RHSt = dyn_cast<TypedInit>(RHS);
- if (RHSt == 0) {
+ if (!RHSt) {
TokError("could not get type for !subst");
- return 0;
+ return nullptr;
}
Type = RHSt->getType();
break;
/// OperatorType ::= '<' Type '>'
///
RecTy *TGParser::ParseOperatorType() {
- RecTy *Type = 0;
+ RecTy *Type = nullptr;
if (Lex.getCode() != tgtok::less) {
TokError("expected type name for operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the <
Type = ParseType();
- if (Type == 0) {
+ if (!Type) {
TokError("expected type name for operator");
- return 0;
+ return nullptr;
}
if (Lex.getCode() != tgtok::greater) {
TokError("expected type name for operator");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the >
///
Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType,
IDParseMode Mode) {
- Init *R = 0;
+ Init *R = nullptr;
switch (Lex.getCode()) {
default: TokError("Unknown token when parsing a value"); break;
case tgtok::paste:
// Value ::= ID '<' ValueListNE '>'
if (Lex.Lex() == tgtok::greater) {
TokError("expected non-empty value list");
- return 0;
+ return nullptr;
}
// This is a CLASS<initvalslist> expression. This is supposed to synthesize
Record *Class = Records.getClass(Name);
if (!Class) {
Error(NameLoc, "Expected a class name, got '" + Name + "'");
- return 0;
+ return nullptr;
}
std::vector<Init*> ValueList = ParseValueList(CurRec, Class);
- if (ValueList.empty()) return 0;
+ if (ValueList.empty()) return nullptr;
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of value list");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '>'
SMLoc EndLoc = Lex.getLoc();
// Create the new record, set it as CurRec temporarily.
- static unsigned AnonCounter = 0;
- Record *NewRec = new Record("anonymous.val."+utostr(AnonCounter++),
- NameLoc,
- Records,
+ Record *NewRec = new Record(GetNewAnonymousName(), NameLoc, Records,
/*IsAnonymous=*/true);
SubClassReference SCRef;
SCRef.RefRange = SMRange(NameLoc, EndLoc);
SCRef.TemplateArgs = ValueList;
// Add info about the subclass to NewRec.
if (AddSubClass(NewRec, SCRef))
- return 0;
- NewRec->resolveReferences();
- Records.addDef(NewRec);
+ return nullptr;
+ if (!CurMultiClass) {
+ NewRec->resolveReferences();
+ Records.addDef(NewRec);
+ } else {
+ // Otherwise, we're inside a multiclass, add it to the multiclass.
+ CurMultiClass->DefPrototypes.push_back(NewRec);
+
+ // Copy the template arguments for the multiclass into the def.
+ const std::vector<Init *> &TArgs =
+ CurMultiClass->Rec.getTemplateArgs();
+
+ for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
+ const RecordVal *RV = CurMultiClass->Rec.getValue(TArgs[i]);
+ assert(RV && "Template arg doesn't exist?");
+ NewRec->addValue(*RV);
+ }
+
+ // We can't return the prototype def here, instead return:
+ // !cast<ItemType>(!strconcat(NAME, AnonName)).
+ const RecordVal *MCNameRV = CurMultiClass->Rec.getValue("NAME");
+ assert(MCNameRV && "multiclass record must have a NAME");
+
+ return UnOpInit::get(UnOpInit::CAST,
+ BinOpInit::get(BinOpInit::STRCONCAT,
+ VarInit::get(MCNameRV->getName(),
+ MCNameRV->getType()),
+ NewRec->getNameInit(),
+ StringRecTy::get()),
+ Class->getDefInit()->getType());
+ }
// The result of the expression is a reference to the new record.
return DefInit::get(NewRec);
if (Lex.getCode() != tgtok::r_brace) {
Vals = ParseValueList(CurRec);
- if (Vals.empty()) return 0;
+ if (Vals.empty()) return nullptr;
}
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of bit list value");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '}'
for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
Init *Bit = Vals[i]->convertInitializerTo(BitRecTy::get());
- if (Bit == 0) {
+ if (!Bit) {
Error(BraceLoc, "Element #" + utostr(i) + " (" + Vals[i]->getAsString()+
") is not convertable to a bit");
- return 0;
+ return nullptr;
}
NewBits[Vals.size()-i-1] = Bit;
}
Lex.Lex(); // eat the '['
std::vector<Init*> Vals;
- RecTy *DeducedEltTy = 0;
- ListRecTy *GivenListTy = 0;
+ RecTy *DeducedEltTy = nullptr;
+ ListRecTy *GivenListTy = nullptr;
- if (ItemType != 0) {
+ if (ItemType) {
ListRecTy *ListType = dyn_cast<ListRecTy>(ItemType);
- if (ListType == 0) {
+ if (!ListType) {
std::string s;
raw_string_ostream ss(s);
ss << "Type mismatch for list, expected list type, got "
<< ItemType->getAsString();
TokError(ss.str());
- return 0;
+ return nullptr;
}
GivenListTy = ListType;
}
if (Lex.getCode() != tgtok::r_square) {
- Vals = ParseValueList(CurRec, 0,
- GivenListTy ? GivenListTy->getElementType() : 0);
- if (Vals.empty()) return 0;
+ Vals = ParseValueList(CurRec, nullptr,
+ GivenListTy ? GivenListTy->getElementType() : nullptr);
+ if (Vals.empty()) return nullptr;
}
if (Lex.getCode() != tgtok::r_square) {
TokError("expected ']' at end of list value");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ']'
- RecTy *GivenEltTy = 0;
+ RecTy *GivenEltTy = nullptr;
if (Lex.getCode() == tgtok::less) {
// Optional list element type
Lex.Lex(); // eat the '<'
GivenEltTy = ParseType();
- if (GivenEltTy == 0) {
+ if (!GivenEltTy) {
// Couldn't parse element type
- return 0;
+ return nullptr;
}
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of list element type");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the '>'
}
// Check elements
- RecTy *EltTy = 0;
+ RecTy *EltTy = nullptr;
for (std::vector<Init *>::iterator i = Vals.begin(), ie = Vals.end();
i != ie;
++i) {
TypedInit *TArg = dyn_cast<TypedInit>(*i);
- if (TArg == 0) {
+ if (!TArg) {
TokError("Untyped list element");
- return 0;
+ return nullptr;
}
- if (EltTy != 0) {
+ if (EltTy) {
EltTy = resolveTypes(EltTy, TArg->getType());
- if (EltTy == 0) {
+ if (!EltTy) {
TokError("Incompatible types in list elements");
- return 0;
+ return nullptr;
}
} else {
EltTy = TArg->getType();
}
}
- if (GivenEltTy != 0) {
- if (EltTy != 0) {
+ if (GivenEltTy) {
+ if (EltTy) {
// Verify consistency
if (!EltTy->typeIsConvertibleTo(GivenEltTy)) {
TokError("Incompatible types in list elements");
- return 0;
+ return nullptr;
}
}
EltTy = GivenEltTy;
}
- if (EltTy == 0) {
- if (ItemType == 0) {
+ if (!EltTy) {
+ if (!ItemType) {
TokError("No type for list");
- return 0;
+ return nullptr;
}
DeducedEltTy = GivenListTy->getElementType();
} else {
if (GivenListTy) {
if (!EltTy->typeIsConvertibleTo(GivenListTy->getElementType())) {
TokError("Element type mismatch for list");
- return 0;
+ return nullptr;
}
}
DeducedEltTy = EltTy;
Lex.Lex(); // eat the '('
if (Lex.getCode() != tgtok::Id && Lex.getCode() != tgtok::XCast) {
TokError("expected identifier in dag init");
- return 0;
+ return nullptr;
}
Init *Operator = ParseValue(CurRec);
- if (Operator == 0) return 0;
+ if (!Operator) return nullptr;
// If the operator name is present, parse it.
std::string OperatorName;
if (Lex.getCode() == tgtok::colon) {
if (Lex.Lex() != tgtok::VarName) { // eat the ':'
TokError("expected variable name in dag operator");
- return 0;
+ return nullptr;
}
OperatorName = Lex.getCurStrVal();
Lex.Lex(); // eat the VarName.
std::vector<std::pair<llvm::Init*, std::string> > DagArgs;
if (Lex.getCode() != tgtok::r_paren) {
DagArgs = ParseDagArgList(CurRec);
- if (DagArgs.empty()) return 0;
+ if (DagArgs.empty()) return nullptr;
}
if (Lex.getCode() != tgtok::r_paren) {
TokError("expected ')' in dag init");
- return 0;
+ return nullptr;
}
Lex.Lex(); // eat the ')'
///
Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType, IDParseMode Mode) {
Init *Result = ParseSimpleValue(CurRec, ItemType, Mode);
- if (Result == 0) return 0;
+ if (!Result) return nullptr;
// Parse the suffixes now if present.
while (1) {
SMLoc CurlyLoc = Lex.getLoc();
Lex.Lex(); // eat the '{'
std::vector<unsigned> Ranges = ParseRangeList();
- if (Ranges.empty()) return 0;
+ if (Ranges.empty()) return nullptr;
// Reverse the bitlist.
std::reverse(Ranges.begin(), Ranges.end());
Result = Result->convertInitializerBitRange(Ranges);
- if (Result == 0) {
+ if (!Result) {
Error(CurlyLoc, "Invalid bit range for value");
- return 0;
+ return nullptr;
}
// Eat the '}'.
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of bit range list");
- return 0;
+ return nullptr;
}
Lex.Lex();
break;
SMLoc SquareLoc = Lex.getLoc();
Lex.Lex(); // eat the '['
std::vector<unsigned> Ranges = ParseRangeList();
- if (Ranges.empty()) return 0;
+ if (Ranges.empty()) return nullptr;
Result = Result->convertInitListSlice(Ranges);
- if (Result == 0) {
+ if (!Result) {
Error(SquareLoc, "Invalid range for list slice");
- return 0;
+ return nullptr;
}
// Eat the ']'.
if (Lex.getCode() != tgtok::r_square) {
TokError("expected ']' at end of list slice");
- return 0;
+ return nullptr;
}
Lex.Lex();
break;
case tgtok::period:
if (Lex.Lex() != tgtok::Id) { // eat the .
TokError("expected field identifier after '.'");
- return 0;
+ return nullptr;
}
if (!Result->getFieldType(Lex.getCurStrVal())) {
TokError("Cannot access field '" + Lex.getCurStrVal() + "' of value '" +
Result->getAsString() + "'");
- return 0;
+ return nullptr;
}
Result = FieldInit::get(Result, Lex.getCurStrVal());
Lex.Lex(); // eat field name
TypedInit *LHS = dyn_cast<TypedInit>(Result);
if (!LHS) {
Error(PasteLoc, "LHS of paste is not typed!");
- return 0;
+ return nullptr;
}
if (LHS->getType() != StringRecTy::get()) {
LHS = UnOpInit::get(UnOpInit::CAST, LHS, StringRecTy::get());
}
- TypedInit *RHS = 0;
+ TypedInit *RHS = nullptr;
Lex.Lex(); // Eat the '#'.
switch (Lex.getCode()) {
RHS = dyn_cast<TypedInit>(RHSResult);
if (!RHS) {
Error(PasteLoc, "RHS of paste is not typed!");
- return 0;
+ return nullptr;
}
if (RHS->getType() != StringRecTy::get()) {
} else {
// DagArg ::= Value (':' VARNAME)?
Init *Val = ParseValue(CurRec);
- if (Val == 0)
+ if (!Val)
return std::vector<std::pair<llvm::Init*, std::string> >();
// If the variable name is present, add it.
std::vector<Init*> Result;
RecTy *ItemType = EltTy;
unsigned int ArgN = 0;
- if (ArgsRec != 0 && EltTy == 0) {
+ if (ArgsRec && !EltTy) {
const std::vector<Init *> &TArgs = ArgsRec->getTemplateArgs();
if (!TArgs.size()) {
TokError("template argument provided to non-template class");
++ArgN;
}
Result.push_back(ParseValue(CurRec, ItemType));
- if (Result.back() == 0) return std::vector<Init*>();
+ if (!Result.back()) return std::vector<Init*>();
while (Lex.getCode() == tgtok::comma) {
Lex.Lex(); // Eat the comma
- if (ArgsRec != 0 && EltTy == 0) {
+ if (ArgsRec && !EltTy) {
const std::vector<Init *> &TArgs = ArgsRec->getTemplateArgs();
if (ArgN >= TArgs.size()) {
TokError("too many template arguments");
++ArgN;
}
Result.push_back(ParseValue(CurRec, ItemType));
- if (Result.back() == 0) return std::vector<Init*>();
+ if (!Result.back()) return std::vector<Init*>();
}
return Result;
if (HasField) Lex.Lex();
RecTy *Type = ParseType();
- if (Type == 0) return 0;
+ if (!Type) return nullptr;
if (Lex.getCode() != tgtok::Id) {
TokError("Expected identifier in declaration");
- return 0;
+ return nullptr;
}
SMLoc IdLoc = Lex.getLoc();
// Add the value.
if (AddValue(CurRec, IdLoc, RecordVal(DeclName, Type, HasField)))
- return 0;
+ return nullptr;
// If a value is present, parse it.
if (Lex.getCode() == tgtok::equal) {
Lex.Lex();
SMLoc ValLoc = Lex.getLoc();
Init *Val = ParseValue(CurRec, Type);
- if (Val == 0 ||
+ if (!Val ||
SetValue(CurRec, ValLoc, DeclName, std::vector<unsigned>(), Val))
- return 0;
+ return nullptr;
}
return DeclName;
VarInit *TGParser::ParseForeachDeclaration(ListInit *&ForeachListValue) {
if (Lex.getCode() != tgtok::Id) {
TokError("Expected identifier in foreach declaration");
- return 0;
+ return nullptr;
}
Init *DeclName = StringInit::get(Lex.getCurStrVal());
// If a value is present, parse it.
if (Lex.getCode() != tgtok::equal) {
TokError("Expected '=' in foreach declaration");
- return 0;
+ return nullptr;
}
Lex.Lex(); // Eat the '='
- RecTy *IterType = 0;
+ RecTy *IterType = nullptr;
std::vector<unsigned> Ranges;
switch (Lex.getCode()) {
- default: TokError("Unknown token when expecting a range list"); return 0;
+ default: TokError("Unknown token when expecting a range list"); return nullptr;
case tgtok::l_square: { // '[' ValueList ']'
- Init *List = ParseSimpleValue(0, 0, ParseForeachMode);
+ Init *List = ParseSimpleValue(nullptr, nullptr, ParseForeachMode);
ForeachListValue = dyn_cast<ListInit>(List);
- if (ForeachListValue == 0) {
+ if (!ForeachListValue) {
TokError("Expected a Value list");
- return 0;
+ return nullptr;
}
RecTy *ValueType = ForeachListValue->getType();
ListRecTy *ListType = dyn_cast<ListRecTy>(ValueType);
- if (ListType == 0) {
+ if (!ListType) {
TokError("Value list is not of list type");
- return 0;
+ return nullptr;
}
IterType = ListType->getElementType();
break;
case tgtok::IntVal: { // RangePiece.
if (ParseRangePiece(Ranges))
- return 0;
+ return nullptr;
break;
}
Ranges = ParseRangeList();
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of bit range list");
- return 0;
+ return nullptr;
}
Lex.Lex();
break;
}
if (!IterType)
- return 0;
+ return nullptr;
return VarInit::get(DeclName, IterType);
}
// Read the first declaration.
Init *TemplArg = ParseDeclaration(CurRec, true/*templateargs*/);
- if (TemplArg == 0)
+ if (!TemplArg)
return true;
TheRecToAddTo->addTemplateArg(TemplArg);
// Read the following declarations.
TemplArg = ParseDeclaration(CurRec, true/*templateargs*/);
- if (TemplArg == 0)
+ if (!TemplArg)
return true;
TheRecToAddTo->addTemplateArg(TemplArg);
}
/// BodyItem ::= LET ID OptionalBitList '=' Value ';'
bool TGParser::ParseBodyItem(Record *CurRec) {
if (Lex.getCode() != tgtok::Let) {
- if (ParseDeclaration(CurRec, false) == 0)
+ if (!ParseDeclaration(CurRec, false))
return true;
if (Lex.getCode() != tgtok::semi)
Lex.Lex(); // eat the '='.
RecordVal *Field = CurRec->getValue(FieldName);
- if (Field == 0)
+ if (!Field)
return TokError("Value '" + FieldName + "' unknown!");
RecTy *Type = Field->getType();
Init *Val = ParseValue(CurRec, Type);
- if (Val == 0) return true;
+ if (!Val) return true;
if (Lex.getCode() != tgtok::semi)
return TokError("expected ';' after let expression");
SubClassReference SubClass = ParseSubClassReference(CurRec, false);
while (1) {
// Check for error.
- if (SubClass.Rec == 0) return true;
+ if (!SubClass.Rec) return true;
// Add it.
if (AddSubClass(CurRec, SubClass))
return true;
}
Records.addDef(CurRec);
+
+ if (ParseObjectBody(CurRec))
+ return true;
} else if (CurMultiClass) {
+ // Parse the body before adding this prototype to the DefPrototypes vector.
+ // That way implicit definitions will be added to the DefPrototypes vector
+ // before this object, instantiated prior to defs derived from this object,
+ // and this available for indirect name resolution when defs derived from
+ // this object are instantiated.
+ if (ParseObjectBody(CurRec))
+ return true;
+
// Otherwise, a def inside a multiclass, add it to the multiclass.
for (unsigned i = 0, e = CurMultiClass->DefPrototypes.size(); i != e; ++i)
if (CurMultiClass->DefPrototypes[i]->getNameInit()
return true;
}
CurMultiClass->DefPrototypes.push_back(CurRec);
- }
-
- if (ParseObjectBody(CurRec))
+ } else if (ParseObjectBody(CurRec))
return true;
- if (CurMultiClass == 0) // Def's in multiclasses aren't really defs.
+ if (!CurMultiClass) // Def's in multiclasses aren't really defs.
// See Record::setName(). This resolve step will see any new name
// for the def that might have been created when resolving
// inheritance, values and arguments above.
// Make a temporary object to record items associated with the for
// loop.
- ListInit *ListValue = 0;
+ ListInit *ListValue = nullptr;
VarInit *IterName = ParseForeachDeclaration(ListValue);
- if (IterName == 0)
+ if (!IterName)
return TokError("expected declaration in for");
if (Lex.getCode() != tgtok::In)
}
Lex.Lex(); // eat the '='.
- Init *Val = ParseValue(0);
- if (Val == 0) return std::vector<LetRecord>();
+ Init *Val = ParseValue(nullptr);
+ if (!Val) return std::vector<LetRecord>();
// Now that we have everything, add the record.
Result.push_back(LetRecord(Name, Bits, Val, NameLoc));
// If there are template args, parse them.
if (Lex.getCode() == tgtok::less)
- if (ParseTemplateArgList(0))
+ if (ParseTemplateArgList(nullptr))
return true;
bool inherits = false;
ParseSubMultiClassReference(CurMultiClass);
while (1) {
// Check for error.
- if (SubMultiClass.MC == 0) return true;
+ if (!SubMultiClass.MC) return true;
// Add it.
if (AddSubMultiClass(CurMultiClass, SubMultiClass))
Lex.Lex(); // eat the '}'.
}
- CurMultiClass = 0;
+ CurMultiClass = nullptr;
return false;
}
Record *TGParser::
InstantiateMulticlassDef(MultiClass &MC,
Record *DefProto,
- Init *DefmPrefix,
+ Init *&DefmPrefix,
SMRange DefmPrefixRange) {
// We need to preserve DefProto so it can be reused for later
// instantiations, so create a new Record to inherit from it.
// as a prefix.
bool IsAnonymous = false;
- if (DefmPrefix == 0) {
+ if (!DefmPrefix) {
DefmPrefix = StringInit::get(GetNewAnonymousName());
IsAnonymous = true;
}
StringInit *DefNameString = dyn_cast<StringInit>(DefName);
- if (DefNameString != 0) {
+ if (DefNameString) {
// We have a fully expanded string so there are no operators to
// resolve. We should concatenate the given prefix and name.
DefName =
Error(DefmPrefixRange.Start, "Could not resolve "
+ CurRec->getNameInitAsString() + ":NAME to '"
+ DefmPrefix->getAsUnquotedString() + "'");
- return 0;
+ return nullptr;
}
// If the DefNameString didn't resolve, we probably have a reference to
// NAME and need to replace it. We need to do at least this much greedily,
// otherwise nested multiclasses will end up with incorrect NAME expansions.
- if (DefNameString == 0) {
+ if (!DefNameString) {
RecordVal *DefNameRV = CurRec->getValue("NAME");
CurRec->resolveReferencesTo(DefNameRV);
}
Error(DefmPrefixRange.Start, "def '" + CurRec->getNameInitAsString() +
"' already defined, instantiating defm with subdef '" +
DefProto->getNameInitAsString() + "'");
- return 0;
+ return nullptr;
}
Records.addDef(CurRec);
bool TGParser::ParseDefm(MultiClass *CurMultiClass) {
assert(Lex.getCode() == tgtok::Defm && "Unexpected token!");
SMLoc DefmLoc = Lex.getLoc();
- Init *DefmPrefix = 0;
+ Init *DefmPrefix = nullptr;
if (Lex.Lex() == tgtok::Id) { // eat the defm.
DefmPrefix = ParseObjectName(CurMultiClass);
Lex.Lex();
SMLoc SubClassLoc = Lex.getLoc();
- SubClassReference Ref = ParseSubClassReference(0, true);
+ SubClassReference Ref = ParseSubClassReference(nullptr, true);
while (1) {
- if (Ref.Rec == 0) return true;
+ if (!Ref.Rec) return true;
// To instantiate a multiclass, we need to first get the multiclass, then
// instantiate each def contained in the multiclass with the SubClassRef
// A defm can inherit from regular classes (non-multiclass) as
// long as they come in the end of the inheritance list.
- InheritFromClass = (Records.getClass(Lex.getCurStrVal()) != 0);
+ InheritFromClass = (Records.getClass(Lex.getCurStrVal()) != nullptr);
if (InheritFromClass)
break;
- Ref = ParseSubClassReference(0, true);
+ Ref = ParseSubClassReference(nullptr, true);
}
if (InheritFromClass) {
// Process all the classes to inherit as if they were part of a
// regular 'def' and inherit all record values.
- SubClassReference SubClass = ParseSubClassReference(0, false);
+ SubClassReference SubClass = ParseSubClassReference(nullptr, false);
while (1) {
// Check for error.
- if (SubClass.Rec == 0) return true;
+ if (!SubClass.Rec) return true;
// Get the expanded definition prototypes and teach them about
// the record values the current class to inherit has
if (Lex.getCode() != tgtok::comma) break;
Lex.Lex(); // eat ','.
- SubClass = ParseSubClassReference(0, false);
+ SubClass = ParseSubClassReference(nullptr, false);
}
}
projects / oota-llvm.git / blobdiff