//
//===----------------------------------------------------------------------===//
-#include <algorithm>
-#include <sstream>
-
#include "TGParser.h"
#include "Record.h"
#include "llvm/ADT/StringExtras.h"
-#include "llvm/Support/Streams.h"
+#include <algorithm>
+#include <sstream>
using namespace llvm;
//===----------------------------------------------------------------------===//
namespace llvm {
struct SubClassReference {
- TGLoc RefLoc;
+ SMLoc RefLoc;
Record *Rec;
std::vector<Init*> TemplateArgs;
SubClassReference() : Rec(0) {}
};
struct SubMultiClassReference {
- TGLoc RefLoc;
+ SMLoc RefLoc;
MultiClass *MC;
std::vector<Init*> TemplateArgs;
SubMultiClassReference() : MC(0) {}
};
void SubMultiClassReference::dump() const {
- cerr << "Multiclass:\n";
-
+ errs() << "Multiclass:\n";
+
MC->dump();
-
- cerr << "Template args:\n";
+
+ errs() << "Template args:\n";
for (std::vector<Init *>::const_iterator i = TemplateArgs.begin(),
iend = TemplateArgs.end();
i != iend;
} // end namespace llvm
-bool TGParser::AddValue(Record *CurRec, TGLoc Loc, const RecordVal &RV) {
+bool TGParser::AddValue(Record *CurRec, SMLoc Loc, const RecordVal &RV) {
if (CurRec == 0)
CurRec = &CurMultiClass->Rec;
-
+
if (RecordVal *ERV = CurRec->getValue(RV.getName())) {
// The value already exists in the class, treat this as a set.
if (ERV->setValue(RV.getValue()))
return Error(Loc, "New definition of '" + RV.getName() + "' of type '" +
RV.getType()->getAsString() + "' is incompatible with " +
- "previous definition of type '" +
+ "previous definition of type '" +
ERV->getType()->getAsString() + "'");
} else {
CurRec->addValue(RV);
/// SetValue -
/// Return true on error, false on success.
-bool TGParser::SetValue(Record *CurRec, TGLoc Loc, const std::string &ValName,
+bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName,
const std::vector<unsigned> &BitList, Init *V) {
if (!V) return false;
if (VarInit *VI = dynamic_cast<VarInit*>(V))
if (VI->getName() == ValName)
return false;
-
+
// If we are assigning to a subset of the bits in the value... then we must be
// assigning to a field of BitsRecTy, which must have a BitsInit
// initializer.
V->convertInitializerTo(new BitsRecTy(BitList.size()));
return Error(Loc, "Initializer is not compatible with bit range");
}
-
+
// We should have a BitsInit type now.
BitsInit *BInit = dynamic_cast<BitsInit*>(BI);
assert(BInit != 0);
}
if (RV->setValue(V))
- return Error(Loc, "Value '" + ValName + "' of type '" +
- RV->getType()->getAsString() +
+ return Error(Loc, "Value '" + ValName + "' of type '" +
+ RV->getType()->getAsString() +
"' is incompatible with initializer '" + V->getAsString() +"'");
return false;
}
// Ensure that an appropriate number of template arguments are specified.
if (TArgs.size() < SubClass.TemplateArgs.size())
return Error(SubClass.RefLoc, "More template args specified than expected");
-
+
// Loop over all of the template arguments, setting them to the specified
// value or leaving them as the default if necessary.
for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
if (i < SubClass.TemplateArgs.size()) {
// If a value is specified for this template arg, set it now.
- if (SetValue(CurRec, SubClass.RefLoc, TArgs[i], std::vector<unsigned>(),
+ if (SetValue(CurRec, SubClass.RefLoc, TArgs[i], std::vector<unsigned>(),
SubClass.TemplateArgs[i]))
return true;
-
+
// Resolve it next.
CurRec->resolveReferencesTo(CurRec->getValue(TArgs[i]));
-
+
// Now remove it.
CurRec->removeValue(TArgs[i]);
} else if (!CurRec->getValue(TArgs[i])->getValue()->isComplete()) {
return Error(SubClass.RefLoc,"Value not specified for template argument #"
- + utostr(i) + " (" + TArgs[i] + ") of subclass '" +
+ + utostr(i) + " (" + TArgs[i] + ") of subclass '" +
SC->getName() + "'!");
}
}
"Already subclass of '" + SCs[i]->getName() + "'!\n");
CurRec->addSuperClass(SCs[i]);
}
-
+
if (CurRec->isSubClassOf(SC))
return Error(SubClass.RefLoc,
"Already subclass of '" + SC->getName() + "'!\n");
/// isObjectStart - Return true if this is a valid first token for an Object.
static bool isObjectStart(tgtok::TokKind K) {
return K == tgtok::Class || K == tgtok::Def ||
- K == tgtok::Defm || K == tgtok::Let || K == tgtok::MultiClass;
+ K == tgtok::Defm || K == tgtok::Let || K == tgtok::MultiClass;
}
/// ParseObjectName - If an object name is specified, return it. Otherwise,
Lex.Lex();
return Ret;
}
-
+
static unsigned AnonCounter = 0;
return "anonymous."+utostr(AnonCounter++);
}
TokError("expected name for ClassID");
return 0;
}
-
+
Record *Result = Records.getClass(Lex.getCurStrVal());
if (Result == 0)
TokError("Couldn't find class '" + Lex.getCurStrVal() + "'");
-
+
Lex.Lex();
return Result;
}
TokError("expected multiclass name");
return 0;
}
-
+
MultiClass *MC = MultiClasses[Lex.getCurStrVal()];
if (MC == 0) {
TokError("Couldn't find multiclass '" + Lex.getCurStrVal() + "'");
return 0;
}
-
+
Lex.Lex();
return &MC->Rec;
-}
-
+}
/// ParseSubClassReference - Parse a reference to a subclass or to a templated
ParseSubClassReference(Record *CurRec, bool isDefm) {
SubClassReference Result;
Result.RefLoc = Lex.getLoc();
-
+
if (isDefm)
Result.Rec = ParseDefmID();
else
Result.Rec = ParseClassID();
if (Result.Rec == 0) return Result;
-
+
// If there is no template arg list, we're done.
if (Lex.getCode() != tgtok::less)
return Result;
Lex.Lex(); // Eat the '<'
-
+
if (Lex.getCode() == tgtok::greater) {
TokError("subclass reference requires a non-empty list of template values");
Result.Rec = 0;
return Result;
}
-
+
Result.TemplateArgs = ParseValueList(CurRec, Result.Rec);
if (Result.TemplateArgs.empty()) {
Result.Rec = 0; // Error parsing value list.
return Result;
}
-
+
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' in template value list");
Result.Rec = 0;
return Result;
}
Lex.Lex();
-
+
return Result;
}
}
int64_t Start = Lex.getCurIntVal();
int64_t End;
-
+
if (Start < 0)
return TokError("invalid range, cannot be negative");
-
+
switch (Lex.Lex()) { // eat first character.
- default:
+ default:
Ranges.push_back(Start);
return false;
case tgtok::minus:
End = -Lex.getCurIntVal();
break;
}
- if (End < 0)
+ if (End < 0)
return TokError("invalid range, cannot be negative");
Lex.Lex();
-
+
// Add to the range.
if (Start < End) {
for (; Start <= End; ++Start)
///
std::vector<unsigned> TGParser::ParseRangeList() {
std::vector<unsigned> Result;
-
+
// Parse the first piece.
if (ParseRangePiece(Result))
return std::vector<unsigned>();
bool TGParser::ParseOptionalRangeList(std::vector<unsigned> &Ranges) {
if (Lex.getCode() != tgtok::less)
return false;
-
- TGLoc StartLoc = Lex.getLoc();
+
+ SMLoc StartLoc = Lex.getLoc();
Lex.Lex(); // eat the '<'
-
+
// Parse the range list.
Ranges = ParseRangeList();
if (Ranges.empty()) return true;
-
+
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of range list");
return Error(StartLoc, "to match this '<'");
bool TGParser::ParseOptionalBitList(std::vector<unsigned> &Ranges) {
if (Lex.getCode() != tgtok::l_brace)
return false;
-
- TGLoc StartLoc = Lex.getLoc();
+
+ SMLoc StartLoc = Lex.getLoc();
Lex.Lex(); // eat the '{'
-
+
// Parse the range list.
Ranges = ParseRangeList();
if (Ranges.empty()) return true;
-
+
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of bit list");
return Error(StartLoc, "to match this '{'");
Lex.Lex(); // Eat '<'
RecTy *SubType = ParseType();
if (SubType == 0) return 0;
-
+
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of list<ty> type");
return 0;
Lex.Lex(); // Eat '>'
return new ListRecTy(SubType);
}
- }
+ }
}
/// ParseIDValue - Parse an ID as a value and decode what it means.
Init *TGParser::ParseIDValue(Record *CurRec) {
assert(Lex.getCode() == tgtok::Id && "Expected ID in ParseIDValue");
std::string Name = Lex.getCurStrVal();
- TGLoc Loc = Lex.getLoc();
+ 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,
- const std::string &Name, TGLoc NameLoc) {
+Init *TGParser::ParseIDValue(Record *CurRec,
+ const std::string &Name, SMLoc NameLoc) {
if (CurRec) {
if (const RecordVal *RV = CurRec->getValue(Name))
return new VarInit(Name, RV->getType());
-
+
std::string TemplateArgName = CurRec->getName()+":"+Name;
if (CurRec->isTemplateArg(TemplateArgName)) {
const RecordVal *RV = CurRec->getValue(TemplateArgName);
return new VarInit(TemplateArgName, RV->getType());
}
}
-
+
if (CurMultiClass) {
std::string MCName = CurMultiClass->Rec.getName()+"::"+Name;
if (CurMultiClass->Rec.isTemplateArg(MCName)) {
return new VarInit(MCName, RV->getType());
}
}
-
+
if (Record *D = Records.getDef(Name))
return new DefInit(D);
TokError("expected list type argumnet in unary operator");
return 0;
}
-
+
if (LHSl && LHSl->getSize() == 0) {
TokError("empty list argument in unary operator");
return 0;
}
if (Code == UnOpInit::CAR) {
Type = Itemt->getType();
- }
- else {
+ } else {
Type = new ListRecTy(Itemt->getType());
}
- }
- else {
+ } else {
assert(LHSt && "expected list type argument in unary operator");
ListRecTy *LType = dynamic_cast<ListRecTy*>(LHSt->getType());
if (LType == 0) {
}
if (Code == UnOpInit::CAR) {
Type = LType->getElementType();
- }
- else {
+ } else {
Type = LType;
}
}
}
case tgtok::XConcat:
- case tgtok::XSRA:
+ case tgtok::XSRA:
case tgtok::XSRL:
case tgtok::XSHL:
+ case tgtok::XEq:
case tgtok::XStrConcat:
case tgtok::XNameConcat: { // Value ::= !binop '(' Value ',' Value ')'
BinOpInit::BinaryOp Code;
switch (Lex.getCode()) {
default: assert(0 && "Unhandled code!");
- case tgtok::XConcat:
+ case tgtok::XConcat:
Lex.Lex(); // eat the operation
Code = BinOpInit::CONCAT;
Type = new DagRecTy();
break;
- case tgtok::XSRA:
+ case tgtok::XSRA:
Lex.Lex(); // eat the operation
Code = BinOpInit::SRA;
Type = new IntRecTy();
break;
- case tgtok::XSRL:
+ case tgtok::XSRL:
Lex.Lex(); // eat the operation
Code = BinOpInit::SRL;
Type = new IntRecTy();
break;
- case tgtok::XSHL:
+ case tgtok::XSHL:
Lex.Lex(); // eat the operation
Code = BinOpInit::SHL;
Type = new IntRecTy();
break;
- case tgtok::XStrConcat:
+ case tgtok::XEq:
+ Lex.Lex(); // eat the operation
+ Code = BinOpInit::EQ;
+ Type = new IntRecTy();
+ break;
+ case tgtok::XStrConcat:
Lex.Lex(); // eat the operation
Code = BinOpInit::STRCONCAT;
Type = new StringRecTy();
break;
- case tgtok::XNameConcat:
+ case tgtok::XNameConcat:
Lex.Lex(); // eat the operation
Code = BinOpInit::NAMECONCAT;
return 0;
}
Lex.Lex(); // eat the ','
-
+
Init *RHS = ParseValue(CurRec);
if (RHS == 0) return 0;
return 0;
}
Lex.Lex(); // eat the ','
-
+
Init *MHS = ParseValue(CurRec);
if (MHS == 0) return 0;
return 0;
}
Lex.Lex(); // eat the ','
-
+
Init *RHS = ParseValue(CurRec);
if (RHS == 0) return 0;
}
if (MHSt->getType()->typeIsConvertibleTo(RHSt->getType())) {
Type = RHSt->getType();
- }
- else if (RHSt->getType()->typeIsConvertibleTo(MHSt->getType())) {
+ } else if (RHSt->getType()->typeIsConvertibleTo(MHSt->getType())) {
Type = MHSt->getType();
- }
- else {
+ } else {
TokError("inconsistent types for !if");
return 0;
}
break;
}
}
- return (new TernOpInit(Code, LHS, MHS, RHS, Type))->Fold(CurRec, CurMultiClass);
+ return (new TernOpInit(Code, LHS, MHS, RHS, Type))->Fold(CurRec,
+ CurMultiClass);
}
}
TokError("could not parse operation");
///
/// OperatorType ::= '<' Type '>'
///
-RecTy *TGParser::ParseOperatorType(void) {
+RecTy *TGParser::ParseOperatorType() {
RecTy *Type = 0;
if (Lex.getCode() != tgtok::less) {
case tgtok::StrVal: {
std::string Val = Lex.getCurStrVal();
Lex.Lex();
-
+
// Handle multiple consecutive concatenated strings.
while (Lex.getCode() == tgtok::StrVal) {
Val += Lex.getCurStrVal();
Lex.Lex();
}
-
+
R = new StringInit(Val);
break;
}
case tgtok::CodeFragment:
- R = new CodeInit(Lex.getCurStrVal()); Lex.Lex(); break;
+ R = new CodeInit(Lex.getCurStrVal()); Lex.Lex(); break;
case tgtok::question: R = new UnsetInit(); Lex.Lex(); break;
case tgtok::Id: {
- TGLoc NameLoc = Lex.getLoc();
+ SMLoc NameLoc = Lex.getLoc();
std::string Name = Lex.getCurStrVal();
if (Lex.Lex() != tgtok::less) // consume the Id.
return ParseIDValue(CurRec, Name, NameLoc); // Value ::= IDValue
-
+
// Value ::= ID '<' ValueListNE '>'
if (Lex.Lex() == tgtok::greater) {
TokError("expected non-empty value list");
std::vector<Init*> ValueList = ParseValueList(CurRec, Class);
if (ValueList.empty()) return 0;
-
+
if (Lex.getCode() != tgtok::greater) {
TokError("expected '>' at end of value list");
return 0;
}
Lex.Lex(); // eat the '>'
-
+
// Create the new record, set it as CurRec temporarily.
static unsigned AnonCounter = 0;
Record *NewRec = new Record("anonymous.val."+utostr(AnonCounter++),NameLoc);
return 0;
NewRec->resolveReferences();
Records.addDef(NewRec);
-
+
// The result of the expression is a reference to the new record.
return new DefInit(NewRec);
- }
+ }
case tgtok::l_brace: { // Value ::= '{' ValueList '}'
- TGLoc BraceLoc = Lex.getLoc();
+ SMLoc BraceLoc = Lex.getLoc();
Lex.Lex(); // eat the '{'
std::vector<Init*> Vals;
-
+
if (Lex.getCode() != tgtok::r_brace) {
Vals = ParseValueList(CurRec);
if (Vals.empty()) return 0;
return 0;
}
Lex.Lex(); // eat the '}'
-
+
BitsInit *Result = new BitsInit(Vals.size());
for (unsigned i = 0, e = Vals.size(); i != e; ++i) {
Init *Bit = Vals[i]->convertInitializerTo(new BitRecTy());
case tgtok::l_square: { // Value ::= '[' ValueList ']'
Lex.Lex(); // eat the '['
std::vector<Init*> Vals;
-
+
RecTy *DeducedEltTy = 0;
ListRecTy *GivenListTy = 0;
-
+
if (ItemType != 0) {
ListRecTy *ListType = dynamic_cast<ListRecTy*>(ItemType);
if (ListType == 0) {
std::stringstream s;
- s << "Type mismatch for list, expected list type, got "
+ s << "Type mismatch for list, expected list type, got "
<< ItemType->getAsString();
TokError(s.str());
}
GivenListTy = ListType;
- }
+ }
if (Lex.getCode() != tgtok::r_square) {
- Vals = ParseValueList(CurRec, 0, GivenListTy ? GivenListTy->getElementType() : 0);
+ Vals = ParseValueList(CurRec, 0,
+ GivenListTy ? GivenListTy->getElementType() : 0);
if (Vals.empty()) return 0;
}
if (Lex.getCode() != tgtok::r_square) {
TokError("Incompatible types in list elements");
return 0;
}
- }
- else {
+ } else {
EltTy = TArg->getType();
}
}
return 0;
}
DeducedEltTy = GivenListTy->getElementType();
- }
- else {
+ } else {
// Make sure the deduced type is compatible with the given type
if (GivenListTy) {
if (!EltTy->typeIsConvertibleTo(GivenListTy->getElementType())) {
}
DeducedEltTy = EltTy;
}
-
+
return new ListInit(Vals, DeducedEltTy);
}
case tgtok::l_paren: { // Value ::= '(' IDValue DagArgList ')'
TokError("expected identifier in dag init");
return 0;
}
-
+
Init *Operator = 0;
if (Lex.getCode() == tgtok::Id) {
Operator = ParseIDValue(CurRec);
if (Operator == 0) return 0;
- }
- else {
+ } else {
Operator = ParseOperation(CurRec);
if (Operator == 0) return 0;
}
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 (Lex.getCode() != tgtok::r_paren) {
TokError("expected ')' in dag init");
return 0;
}
Lex.Lex(); // eat the ')'
-
+
return new DagInit(Operator, OperatorName, DagArgs);
break;
}
-
+
case tgtok::XCar:
case tgtok::XCdr:
case tgtok::XNull:
case tgtok::XCast: // Value ::= !unop '(' Value ')'
case tgtok::XConcat:
- case tgtok::XSRA:
+ case tgtok::XSRA:
case tgtok::XSRL:
case tgtok::XSHL:
+ case tgtok::XEq:
case tgtok::XStrConcat:
case tgtok::XNameConcat: // Value ::= !binop '(' Value ',' Value ')'
case tgtok::XIf:
break;
}
}
-
+
return R;
}
Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType) {
Init *Result = ParseSimpleValue(CurRec, ItemType);
if (Result == 0) return 0;
-
+
// Parse the suffixes now if present.
while (1) {
switch (Lex.getCode()) {
default: return Result;
case tgtok::l_brace: {
- TGLoc CurlyLoc = Lex.getLoc();
+ SMLoc CurlyLoc = Lex.getLoc();
Lex.Lex(); // eat the '{'
std::vector<unsigned> Ranges = ParseRangeList();
if (Ranges.empty()) return 0;
-
+
// Reverse the bitlist.
std::reverse(Ranges.begin(), Ranges.end());
Result = Result->convertInitializerBitRange(Ranges);
Error(CurlyLoc, "Invalid bit range for value");
return 0;
}
-
+
// Eat the '}'.
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of bit range list");
break;
}
case tgtok::l_square: {
- TGLoc SquareLoc = Lex.getLoc();
+ SMLoc SquareLoc = Lex.getLoc();
Lex.Lex(); // eat the '['
std::vector<unsigned> Ranges = ParseRangeList();
if (Ranges.empty()) return 0;
-
+
Result = Result->convertInitListSlice(Ranges);
if (Result == 0) {
Error(SquareLoc, "Invalid range for list slice");
return 0;
}
-
+
// Eat the ']'.
if (Lex.getCode() != tgtok::r_square) {
TokError("expected ']' at end of list slice");
///
/// ParseDagArgList ::= Value (':' VARNAME)?
/// ParseDagArgList ::= ParseDagArgList ',' Value (':' VARNAME)?
-std::vector<std::pair<llvm::Init*, std::string> >
+std::vector<std::pair<llvm::Init*, std::string> >
TGParser::ParseDagArgList(Record *CurRec) {
std::vector<std::pair<llvm::Init*, std::string> > Result;
-
+
while (1) {
Init *Val = ParseValue(CurRec);
if (Val == 0) return std::vector<std::pair<llvm::Init*, std::string> >();
-
+
// If the variable name is present, add it.
std::string VarName;
if (Lex.getCode() == tgtok::colon) {
VarName = Lex.getCurStrVal();
Lex.Lex(); // eat the VarName.
}
-
+
Result.push_back(std::make_pair(Val, VarName));
-
+
if (Lex.getCode() != tgtok::comma) break;
- Lex.Lex(); // eat the ','
+ Lex.Lex(); // eat the ','
}
-
+
return Result;
}
///
/// ValueList ::= Value (',' Value)
///
-std::vector<Init*> TGParser::ParseValueList(Record *CurRec, Record *ArgsRec, RecTy *EltTy) {
+std::vector<Init*> TGParser::ParseValueList(Record *CurRec, Record *ArgsRec,
+ RecTy *EltTy) {
std::vector<Init*> Result;
RecTy *ItemType = EltTy;
- int ArgN = 0;
+ unsigned int ArgN = 0;
if (ArgsRec != 0 && EltTy == 0) {
const std::vector<std::string> &TArgs = ArgsRec->getTemplateArgs();
const RecordVal *RV = ArgsRec->getValue(TArgs[ArgN]);
}
Result.push_back(ParseValue(CurRec, ItemType));
if (Result.back() == 0) return std::vector<Init*>();
-
+
while (Lex.getCode() == tgtok::comma) {
Lex.Lex(); // Eat the comma
-
+
if (ArgsRec != 0 && EltTy == 0) {
const std::vector<std::string> &TArgs = ArgsRec->getTemplateArgs();
+ if (ArgN >= TArgs.size()) {
+ TokError("too many template arguments");
+ return std::vector<Init*>();
+ }
const RecordVal *RV = ArgsRec->getValue(TArgs[ArgN]);
assert(RV && "Template argument record not found??");
ItemType = RV->getType();
Result.push_back(ParseValue(CurRec, ItemType));
if (Result.back() == 0) return std::vector<Init*>();
}
-
+
return Result;
}
-
/// ParseDeclaration - Read a declaration, returning the name of field ID, or an
/// empty string on error. This can happen in a number of different context's,
/// including within a def or in the template args for a def (which which case
///
/// Declaration ::= FIELD? Type ID ('=' Value)?
///
-std::string TGParser::ParseDeclaration(Record *CurRec,
+std::string TGParser::ParseDeclaration(Record *CurRec,
bool ParsingTemplateArgs) {
// Read the field prefix if present.
bool HasField = Lex.getCode() == tgtok::Field;
if (HasField) Lex.Lex();
-
+
RecTy *Type = ParseType();
if (Type == 0) return "";
-
+
if (Lex.getCode() != tgtok::Id) {
TokError("Expected identifier in declaration");
return "";
}
-
- TGLoc IdLoc = Lex.getLoc();
+
+ SMLoc IdLoc = Lex.getLoc();
std::string DeclName = Lex.getCurStrVal();
Lex.Lex();
-
+
if (ParsingTemplateArgs) {
if (CurRec) {
DeclName = CurRec->getName() + ":" + DeclName;
if (CurMultiClass)
DeclName = CurMultiClass->Rec.getName() + "::" + DeclName;
}
-
+
// Add the value.
if (AddValue(CurRec, IdLoc, RecordVal(DeclName, Type, HasField)))
return "";
-
+
// If a value is present, parse it.
if (Lex.getCode() == tgtok::equal) {
Lex.Lex();
- TGLoc ValLoc = Lex.getLoc();
+ SMLoc ValLoc = Lex.getLoc();
Init *Val = ParseValue(CurRec, Type);
if (Val == 0 ||
SetValue(CurRec, ValLoc, DeclName, std::vector<unsigned>(), Val))
return "";
}
-
+
return DeclName;
}
/// these are the template args for a multiclass.
///
/// TemplateArgList ::= '<' Declaration (',' Declaration)* '>'
-///
+///
bool TGParser::ParseTemplateArgList(Record *CurRec) {
assert(Lex.getCode() == tgtok::less && "Not a template arg list!");
Lex.Lex(); // eat the '<'
-
+
Record *TheRecToAddTo = CurRec ? CurRec : &CurMultiClass->Rec;
-
+
// Read the first declaration.
std::string TemplArg = ParseDeclaration(CurRec, true/*templateargs*/);
if (TemplArg.empty())
return true;
-
+
TheRecToAddTo->addTemplateArg(TemplArg);
-
+
while (Lex.getCode() == tgtok::comma) {
Lex.Lex(); // eat the ','
-
+
// Read the following declarations.
TemplArg = ParseDeclaration(CurRec, true/*templateargs*/);
if (TemplArg.empty())
return true;
TheRecToAddTo->addTemplateArg(TemplArg);
}
-
+
if (Lex.getCode() != tgtok::greater)
return TokError("expected '>' at end of template argument list");
Lex.Lex(); // eat the '>'.
/// BodyItem ::= LET ID OptionalBitList '=' Value ';'
bool TGParser::ParseBodyItem(Record *CurRec) {
if (Lex.getCode() != tgtok::Let) {
- if (ParseDeclaration(CurRec, false).empty())
+ if (ParseDeclaration(CurRec, false).empty())
return true;
-
+
if (Lex.getCode() != tgtok::semi)
return TokError("expected ';' after declaration");
Lex.Lex();
// LET ID OptionalRangeList '=' Value ';'
if (Lex.Lex() != tgtok::Id)
return TokError("expected field identifier after let");
-
- TGLoc IdLoc = Lex.getLoc();
+
+ SMLoc IdLoc = Lex.getLoc();
std::string FieldName = Lex.getCurStrVal();
Lex.Lex(); // eat the field name.
-
+
std::vector<unsigned> BitList;
- if (ParseOptionalBitList(BitList))
+ if (ParseOptionalBitList(BitList))
return true;
std::reverse(BitList.begin(), BitList.end());
-
+
if (Lex.getCode() != tgtok::equal)
return TokError("expected '=' in let expression");
Lex.Lex(); // eat the '='.
-
+
RecordVal *Field = CurRec->getValue(FieldName);
if (Field == 0)
return TokError("Value '" + FieldName + "' unknown!");
RecTy *Type = Field->getType();
-
+
Init *Val = ParseValue(CurRec, Type);
if (Val == 0) return true;
-
+
if (Lex.getCode() != tgtok::semi)
return TokError("expected ';' after let expression");
Lex.Lex();
-
+
return SetValue(CurRec, IdLoc, FieldName, BitList, Val);
}
Lex.Lex();
return false;
}
-
+
if (Lex.getCode() != tgtok::l_brace)
return TokError("Expected ';' or '{' to start body");
// Eat the '{'.
Lex.Lex();
-
+
while (Lex.getCode() != tgtok::r_brace)
if (ParseBodyItem(CurRec))
return true;
// If there is a baseclass list, read it.
if (Lex.getCode() == tgtok::colon) {
Lex.Lex();
-
+
// Read all of the subclasses.
SubClassReference SubClass = ParseSubClassReference(CurRec, false);
while (1) {
// Check for error.
if (SubClass.Rec == 0) return true;
-
+
// Add it.
if (AddSubClass(CurRec, SubClass))
return true;
-
+
if (Lex.getCode() != tgtok::comma) break;
Lex.Lex(); // eat ','.
SubClass = ParseSubClassReference(CurRec, false);
if (SetValue(CurRec, LetStack[i][j].Loc, LetStack[i][j].Name,
LetStack[i][j].Bits, LetStack[i][j].Value))
return true;
-
+
return ParseBody(CurRec);
}
/// DefInst ::= DEF ObjectName ObjectBody
///
llvm::Record *TGParser::ParseDef(MultiClass *CurMultiClass) {
- TGLoc DefLoc = Lex.getLoc();
+ SMLoc DefLoc = Lex.getLoc();
assert(Lex.getCode() == tgtok::Def && "Unknown tok");
- Lex.Lex(); // Eat the 'def' token.
+ Lex.Lex(); // Eat the 'def' token.
// Parse ObjectName and make a record for it.
Record *CurRec = new Record(ParseObjectName(), DefLoc);
-
+
if (!CurMultiClass) {
// Top-level def definition.
-
+
// Ensure redefinition doesn't happen.
if (Records.getDef(CurRec->getName())) {
Error(DefLoc, "def '" + CurRec->getName() + "' already defined");
}
CurMultiClass->DefPrototypes.push_back(CurRec);
}
-
+
if (ParseObjectBody(CurRec))
return 0;
-
+
if (CurMultiClass == 0) // Def's in multiclasses aren't really defs.
CurRec->resolveReferences();
-
+
// If ObjectBody has template arguments, it's an error.
assert(CurRec->getTemplateArgs().empty() && "How'd this get template args?");
return CurRec;
bool TGParser::ParseClass() {
assert(Lex.getCode() == tgtok::Class && "Unexpected token!");
Lex.Lex();
-
+
if (Lex.getCode() != tgtok::Id)
return TokError("expected class name after 'class' keyword");
-
+
Record *CurRec = Records.getClass(Lex.getCurStrVal());
if (CurRec) {
// If the body was previously defined, this is an error.
Records.addClass(CurRec);
}
Lex.Lex(); // eat the name.
-
+
// If there are template args, parse them.
if (Lex.getCode() == tgtok::less)
if (ParseTemplateArgList(CurRec))
///
std::vector<LetRecord> TGParser::ParseLetList() {
std::vector<LetRecord> Result;
-
+
while (1) {
if (Lex.getCode() != tgtok::Id) {
TokError("expected identifier in let definition");
return std::vector<LetRecord>();
}
std::string Name = Lex.getCurStrVal();
- TGLoc NameLoc = Lex.getLoc();
- Lex.Lex(); // Eat the identifier.
+ SMLoc NameLoc = Lex.getLoc();
+ Lex.Lex(); // Eat the identifier.
// Check for an optional RangeList.
std::vector<unsigned> Bits;
- if (ParseOptionalRangeList(Bits))
+ if (ParseOptionalRangeList(Bits))
return std::vector<LetRecord>();
std::reverse(Bits.begin(), Bits.end());
-
+
if (Lex.getCode() != tgtok::equal) {
TokError("expected '=' in let expression");
return std::vector<LetRecord>();
}
Lex.Lex(); // eat the '='.
-
+
Init *Val = ParseValue(0);
if (Val == 0) return std::vector<LetRecord>();
-
+
// Now that we have everything, add the record.
Result.push_back(LetRecord(Name, Bits, Val, NameLoc));
-
+
if (Lex.getCode() != tgtok::comma)
return Result;
- Lex.Lex(); // eat the comma.
+ Lex.Lex(); // eat the comma.
}
}
bool TGParser::ParseTopLevelLet() {
assert(Lex.getCode() == tgtok::Let && "Unexpected token");
Lex.Lex();
-
+
// Add this entry to the let stack.
std::vector<LetRecord> LetInfo = ParseLetList();
if (LetInfo.empty()) return true;
if (Lex.getCode() != tgtok::In)
return TokError("expected 'in' at end of top-level 'let'");
Lex.Lex();
-
+
// If this is a scalar let, just handle it now
if (Lex.getCode() != tgtok::l_brace) {
// LET LetList IN Object
if (ParseObject())
return true;
} else { // Object ::= LETCommand '{' ObjectList '}'
- TGLoc BraceLoc = Lex.getLoc();
+ SMLoc BraceLoc = Lex.getLoc();
// Otherwise, this is a group let.
Lex.Lex(); // eat the '{'.
-
+
// Parse the object list.
if (ParseObjectList())
return true;
-
+
if (Lex.getCode() != tgtok::r_brace) {
TokError("expected '}' at end of top level let command");
return Error(BraceLoc, "to match this '{'");
}
Lex.Lex();
}
-
+
// Outside this let scope, this let block is not active.
LetStack.pop_back();
return false;
/// MultiClassDef ::= DefInst
///
bool TGParser::ParseMultiClassDef(MultiClass *CurMC) {
- if (Lex.getCode() != tgtok::Def)
+ if (Lex.getCode() != tgtok::Def)
return TokError("expected 'def' in multiclass body");
Record *D = ParseDef(CurMC);
if (D == 0) return true;
-
+
// Copy the template arguments for the multiclass into the def.
const std::vector<std::string> &TArgs = CurMC->Rec.getTemplateArgs();
-
+
for (unsigned i = 0, e = TArgs.size(); i != e; ++i) {
const RecordVal *RV = CurMC->Rec.getValue(TArgs[i]);
assert(RV && "Template arg doesn't exist?");
if (Lex.getCode() != tgtok::Id)
return TokError("expected identifier after multiclass for name");
std::string Name = Lex.getCurStrVal();
-
+
if (MultiClasses.count(Name))
return TokError("multiclass '" + Name + "' already defined");
-
+
CurMultiClass = MultiClasses[Name] = new MultiClass(Name, Lex.getLoc());
Lex.Lex(); // Eat the identifier.
-
+
// If there are template args, parse them.
if (Lex.getCode() == tgtok::less)
if (ParseTemplateArgList(0))
if (Lex.getCode() != tgtok::l_brace) {
if (!inherits)
return TokError("expected '{' in multiclass definition");
+ else if (Lex.getCode() != tgtok::semi)
+ return TokError("expected ';' in multiclass definition");
else
- if (Lex.getCode() != tgtok::semi)
- return TokError("expected ';' in multiclass definition");
- else
- Lex.Lex(); // eat the ';'.
- }
- else {
+ Lex.Lex(); // eat the ';'.
+ } else {
if (Lex.Lex() == tgtok::r_brace) // eat the '{'.
return TokError("multiclass must contain at least one def");
-
+
while (Lex.getCode() != tgtok::r_brace)
if (ParseMultiClassDef(CurMultiClass))
return true;
-
+
Lex.Lex(); // eat the '}'.
}
-
+
CurMultiClass = 0;
return false;
}
assert(Lex.getCode() == tgtok::Defm && "Unexpected token!");
if (Lex.Lex() != tgtok::Id) // eat the defm.
return TokError("expected identifier after defm");
-
- TGLoc DefmPrefixLoc = Lex.getLoc();
+
+ SMLoc DefmPrefixLoc = Lex.getLoc();
std::string DefmPrefix = Lex.getCurStrVal();
if (Lex.Lex() != tgtok::colon)
return TokError("expected ':' after defm identifier");
-
+
// eat the colon.
Lex.Lex();
- TGLoc SubClassLoc = Lex.getLoc();
+ SMLoc SubClassLoc = Lex.getLoc();
SubClassReference Ref = ParseSubClassReference(0, true);
while (1) {
// template parameters.
MultiClass *MC = MultiClasses[Ref.Rec->getName()];
assert(MC && "Didn't lookup multiclass correctly?");
- std::vector<Init*> &TemplateVals = Ref.TemplateArgs;
+ std::vector<Init*> &TemplateVals = Ref.TemplateArgs;
// Verify that the correct number of template arguments were specified.
const std::vector<std::string> &TArgs = MC->Rec.getTemplateArgs();
std::string::size_type idx = DefName.find("#NAME#");
if (idx != std::string::npos) {
DefName.replace(idx, 6, DefmPrefix);
- }
- else {
+ } else {
// Add the suffix to the defm name to get the new name.
DefName = DefmPrefix + DefName;
}
// Ensure redefinition doesn't happen.
if (Records.getDef(CurRec->getName()))
- return Error(DefmPrefixLoc, "def '" + CurRec->getName() +
- "' already defined, instantiating defm with subdef '" +
+ return Error(DefmPrefixLoc, "def '" + CurRec->getName() +
+ "' already defined, instantiating defm with subdef '" +
DefProto->getName() + "'");
Records.addDef(CurRec);
CurRec->resolveReferences();
if (Lex.getCode() != tgtok::semi)
return TokError("expected ';' at end of defm");
Lex.Lex();
-
+
return false;
}
return false;
}
-
bool TGParser::ParseFile() {
Lex.Lex(); // Prime the lexer.
if (ParseObjectList()) return true;
-
+
// If we have unread input at the end of the file, report it.
if (Lex.getCode() == tgtok::Eof)
return false;
-
+
return TokError("Unexpected input at top level");
}
projects / oota-llvm.git / blobdiff