X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTableGen%2FTGParser.cpp;h=81c68292f1b43d2e3e7d657bddd2bd78c45d4a11;hb=8dd6f0c8353f80de6526810899f271d539f6929c;hp=1601a530b188309105ab7d6f43b8f8e0a057e89b;hpb=7c788888872233748da10a8177a9a1eb176c1bc8;p=oota-llvm.git diff --git a/lib/TableGen/TGParser.cpp b/lib/TableGen/TGParser.cpp index 1601a530b18..81c68292f1b 100644 --- a/lib/TableGen/TGParser.cpp +++ b/lib/TableGen/TGParser.cpp @@ -64,7 +64,7 @@ bool TGParser::AddValue(Record *CurRec, SMLoc Loc, const RecordVal &RV) { if (CurRec == 0) CurRec = &CurMultiClass->Rec; - if (RecordVal *ERV = CurRec->getValue(RV.getName())) { + if (RecordVal *ERV = CurRec->getValue(RV.getNameInit())) { // 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 '" + @@ -79,7 +79,7 @@ bool TGParser::AddValue(Record *CurRec, SMLoc Loc, const RecordVal &RV) { /// SetValue - /// Return true on error, false on success. -bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName, +bool TGParser::SetValue(Record *CurRec, SMLoc Loc, Init *ValName, const std::vector &BitList, Init *V) { if (!V) return false; @@ -87,13 +87,14 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName, RecordVal *RV = CurRec->getValue(ValName); if (RV == 0) - return Error(Loc, "Value '" + ValName + "' unknown!"); + return Error(Loc, "Value '" + ValName->getAsUnquotedString() + + "' unknown!"); // Do not allow assignments like 'X = X'. This will just cause infinite loops // in the resolution machinery. if (BitList.empty()) if (VarInit *VI = dynamic_cast(V)) - if (VI->getName() == ValName) + if (VI->getNameInit() == ValName) return false; // If we are assigning to a subset of the bits in the value... then we must be @@ -103,7 +104,8 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName, if (!BitList.empty()) { BitsInit *CurVal = dynamic_cast(RV->getValue()); if (CurVal == 0) - return Error(Loc, "Value '" + ValName + "' is not a bits type"); + 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())); @@ -123,7 +125,7 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName, unsigned Bit = BitList[i]; if (NewBits[Bit]) return Error(Loc, "Cannot set bit #" + utostr(Bit) + " of value '" + - ValName + "' more than once"); + ValName->getAsUnquotedString() + "' more than once"); NewBits[Bit] = BInit->getBit(i); } @@ -135,9 +137,10 @@ bool TGParser::SetValue(Record *CurRec, SMLoc Loc, const std::string &ValName, } if (RV->setValue(V)) - return Error(Loc, "Value '" + ValName + "' of type '" + - RV->getType()->getAsString() + - "' is incompatible with initializer '" + V->getAsString() +"'"); + return Error(Loc, "Value '" + ValName->getAsUnquotedString() + "' of type '" + + RV->getType()->getAsString() + + "' is incompatible with initializer '" + V->getAsString() + + "'"); return false; } @@ -151,7 +154,7 @@ bool TGParser::AddSubClass(Record *CurRec, SubClassReference &SubClass) { if (AddValue(CurRec, SubClass.RefLoc, Vals[i])) return true; - const std::vector &TArgs = SC->getTemplateArgs(); + const std::vector &TArgs = SC->getTemplateArgs(); // Ensure that an appropriate number of template arguments are specified. if (TArgs.size() < SubClass.TemplateArgs.size()) @@ -174,8 +177,8 @@ bool TGParser::AddSubClass(Record *CurRec, SubClassReference &SubClass) { } else if (!CurRec->getValue(TArgs[i])->getValue()->isComplete()) { return Error(SubClass.RefLoc,"Value not specified for template argument #" - + utostr(i) + " (" + TArgs[i] + ") of subclass '" + - SC->getName() + "'!"); + + utostr(i) + " (" + TArgs[i]->getAsUnquotedString() + + ") of subclass '" + SC->getNameInitAsString() + "'!"); } } @@ -230,7 +233,7 @@ bool TGParser::AddSubMultiClass(MultiClass *CurMC, CurMC->DefPrototypes.push_back(NewDef); } - const std::vector &SMCTArgs = SMC->Rec.getTemplateArgs(); + const std::vector &SMCTArgs = SMC->Rec.getTemplateArgs(); // Ensure that an appropriate number of template arguments are // specified. @@ -278,8 +281,8 @@ bool TGParser::AddSubMultiClass(MultiClass *CurMC, } else if (!CurRec->getValue(SMCTArgs[i])->getValue()->isComplete()) { return Error(SubMultiClass.RefLoc, "Value not specified for template argument #" - + utostr(i) + " (" + SMCTArgs[i] + ") of subclass '" + - SMC->Rec.getName() + "'!"); + + utostr(i) + " (" + SMCTArgs[i]->getAsUnquotedString() + + ") of subclass '" + SMC->Rec.getNameInitAsString() + "'!"); } } @@ -303,18 +306,40 @@ static std::string GetNewAnonymousName() { /// ParseObjectName - If an object name is specified, return it. Otherwise, /// return an anonymous name. -/// ObjectName ::= ID +/// ObjectName ::= Value [ '#' Value ]* /// ObjectName ::= /*empty*/ /// -std::string TGParser::ParseObjectName() { - if (Lex.getCode() != tgtok::Id) - return GetNewAnonymousName(); +Init *TGParser::ParseObjectName(MultiClass *CurMultiClass) { + switch (Lex.getCode()) { + case tgtok::colon: + case tgtok::semi: + case tgtok::l_brace: + // 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 StringInit::get(GetNewAnonymousName()); + break; + default: + break; + } - std::string Ret = Lex.getCurStrVal(); - Lex.Lex(); - return Ret; -} + Record *CurRec = 0; + if (CurMultiClass) + CurRec = &CurMultiClass->Rec; + RecTy *Type = 0; + if (CurRec) { + const TypedInit *CurRecName = + dynamic_cast(CurRec->getNameInit()); + if (!CurRecName) { + TokError("Record name is not typed!"); + return 0; + } + Type = CurRecName->getType(); + } + + return ParseValue(CurRec, Type, ParseNameMode); +} /// ParseClassID - Parse and resolve a reference to a class name. This returns /// null on error. @@ -570,11 +595,11 @@ bool TGParser::ParseOptionalBitList(std::vector &Ranges) { /// ParseType - Parse and return a tblgen type. This returns null on error. /// /// Type ::= STRING // string type +/// Type ::= CODE // code type /// Type ::= BIT // bit type /// Type ::= BITS '<' INTVAL '>' // bits type /// Type ::= INT // int type /// Type ::= LIST '<' Type '>' // list type -/// Type ::= CODE // code type /// Type ::= DAG // dag type /// Type ::= ClassID // Record Type /// @@ -582,9 +607,9 @@ RecTy *TGParser::ParseType() { switch (Lex.getCode()) { default: TokError("Unknown token when expecting a type"); return 0; 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::Int: Lex.Lex(); return IntRecTy::get(); - case tgtok::Code: Lex.Lex(); return CodeRecTy::get(); case tgtok::Dag: Lex.Lex(); return DagRecTy::get(); case tgtok::Id: if (Record *R = ParseClassID()) return RecordRecTy::get(R); @@ -633,7 +658,7 @@ RecTy *TGParser::ParseType() { /// IDValue ::= ID [multiclass template argument] /// IDValue ::= ID [def name] /// -Init *TGParser::ParseIDValue(Record *CurRec) { +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(); @@ -644,12 +669,18 @@ Init *TGParser::ParseIDValue(Record *CurRec) { /// 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, SMLoc NameLoc) { + const std::string &Name, SMLoc NameLoc, + IDParseMode Mode) { if (CurRec) { if (const RecordVal *RV = CurRec->getValue(Name)) return VarInit::get(Name, RV->getType()); - std::string TemplateArgName = CurRec->getName()+":"+Name; + Init *TemplateArgName = QualifyName(*CurRec, CurMultiClass, Name, ":"); + + if (CurMultiClass) + TemplateArgName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name, + "::"); + if (CurRec->isTemplateArg(TemplateArgName)) { const RecordVal *RV = CurRec->getValue(TemplateArgName); assert(RV && "Template arg doesn't exist??"); @@ -658,7 +689,9 @@ Init *TGParser::ParseIDValue(Record *CurRec, } if (CurMultiClass) { - std::string MCName = CurMultiClass->Rec.getName()+"::"+Name; + Init *MCName = QualifyName(CurMultiClass->Rec, CurMultiClass, Name, + "::"); + if (CurMultiClass->Rec.isTemplateArg(MCName)) { const RecordVal *RV = CurMultiClass->Rec.getValue(MCName); assert(RV && "Template arg doesn't exist??"); @@ -666,11 +699,18 @@ Init *TGParser::ParseIDValue(Record *CurRec, } } + if (Mode == ParseNameMode) + return StringInit::get(Name); + if (Record *D = Records.getDef(Name)) return DefInit::get(D); - Error(NameLoc, "Variable not defined: '" + Name + "'"); - return 0; + if (Mode == ParseValueMode) { + Error(NameLoc, "Variable not defined: '" + Name + "'"); + return 0; + } + + return StringInit::get(Name); } /// ParseOperation - Parse an operator. This returns null on error. @@ -1038,10 +1078,17 @@ RecTy *TGParser::ParseOperatorType() { /// SimpleValue ::= SRLTOK '(' Value ',' Value ')' /// SimpleValue ::= STRCONCATTOK '(' Value ',' Value ')' /// -Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType) { +Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType, + IDParseMode Mode) { Init *R = 0; switch (Lex.getCode()) { default: TokError("Unknown token when parsing a value"); break; + case tgtok::paste: + // This is a leading paste operation. This is deprecated but + // still exists in some .td files. Ignore it. + Lex.Lex(); // Skip '#'. + return ParseSimpleValue(CurRec, ItemType, Mode); + break; case tgtok::IntVal: R = IntInit::get(Lex.getCurIntVal()); Lex.Lex(); break; case tgtok::StrVal: { std::string Val = Lex.getCurStrVal(); @@ -1057,7 +1104,7 @@ Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType) { break; } case tgtok::CodeFragment: - R = CodeInit::get(Lex.getCurStrVal()); + R = StringInit::get(Lex.getCurStrVal()); Lex.Lex(); break; case tgtok::question: @@ -1068,7 +1115,7 @@ Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType) { SMLoc NameLoc = Lex.getLoc(); std::string Name = Lex.getCurStrVal(); if (Lex.Lex() != tgtok::less) // consume the Id. - return ParseIDValue(CurRec, Name, NameLoc); // Value ::= IDValue + return ParseIDValue(CurRec, Name, NameLoc, Mode); // Value ::= IDValue // Value ::= ID '<' ValueListNE '>' if (Lex.Lex() == tgtok::greater) { @@ -1302,8 +1349,8 @@ Init *TGParser::ParseSimpleValue(Record *CurRec, RecTy *ItemType) { /// ValueSuffix ::= '[' BitList ']' /// ValueSuffix ::= '.' ID /// -Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType) { - Init *Result = ParseSimpleValue(CurRec, ItemType); +Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType, IDParseMode Mode) { + Init *Result = ParseSimpleValue(CurRec, ItemType, Mode); if (Result == 0) return 0; // Parse the suffixes now if present. @@ -1311,6 +1358,10 @@ Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType) { switch (Lex.getCode()) { default: return Result; case tgtok::l_brace: { + if (Mode == ParseNameMode) + // This is the beginning of the object body. + return Result; + SMLoc CurlyLoc = Lex.getLoc(); Lex.Lex(); // eat the '{' std::vector Ranges = ParseRangeList(); @@ -1365,6 +1416,56 @@ Init *TGParser::ParseValue(Record *CurRec, RecTy *ItemType) { Result = FieldInit::get(Result, Lex.getCurStrVal()); Lex.Lex(); // eat field name break; + + case tgtok::paste: + SMLoc PasteLoc = Lex.getLoc(); + + // Create a !strconcat() operation, first casting each operand to + // a string if necessary. + + TypedInit *LHS = dynamic_cast(Result); + if (!LHS) { + Error(PasteLoc, "LHS of paste is not typed!"); + return 0; + } + + if (LHS->getType() != StringRecTy::get()) { + LHS = UnOpInit::get(UnOpInit::CAST, LHS, StringRecTy::get()); + } + + TypedInit *RHS = 0; + + Lex.Lex(); // Eat the '#'. + switch (Lex.getCode()) { + case tgtok::colon: + case tgtok::semi: + case tgtok::l_brace: + // 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. + + // Trailing paste, concat with an empty string. + RHS = StringInit::get(""); + break; + + default: + Init *RHSResult = ParseValue(CurRec, ItemType, ParseNameMode); + RHS = dynamic_cast(RHSResult); + if (!RHS) { + Error(PasteLoc, "RHS of paste is not typed!"); + return 0; + } + + if (RHS->getType() != StringRecTy::get()) { + RHS = UnOpInit::get(UnOpInit::CAST, RHS, StringRecTy::get()); + } + + break; + } + + Result = BinOpInit::get(BinOpInit::STRCONCAT, LHS, RHS, + StringRecTy::get())->Fold(CurRec, CurMultiClass); + break; } } } @@ -1414,7 +1515,7 @@ std::vector TGParser::ParseValueList(Record *CurRec, Record *ArgsRec, RecTy *ItemType = EltTy; unsigned int ArgN = 0; if (ArgsRec != 0 && EltTy == 0) { - const std::vector &TArgs = ArgsRec->getTemplateArgs(); + const std::vector &TArgs = ArgsRec->getTemplateArgs(); const RecordVal *RV = ArgsRec->getValue(TArgs[ArgN]); if (!RV) { errs() << "Cannot find template arg " << ArgN << " (" << TArgs[ArgN] @@ -1431,7 +1532,7 @@ std::vector TGParser::ParseValueList(Record *CurRec, Record *ArgsRec, Lex.Lex(); // Eat the comma if (ArgsRec != 0 && EltTy == 0) { - const std::vector &TArgs = ArgsRec->getTemplateArgs(); + const std::vector &TArgs = ArgsRec->getTemplateArgs(); if (ArgN >= TArgs.size()) { TokError("too many template arguments"); return std::vector(); @@ -1459,37 +1560,38 @@ std::vector TGParser::ParseValueList(Record *CurRec, Record *ArgsRec, /// /// Declaration ::= FIELD? Type ID ('=' Value)? /// -std::string TGParser::ParseDeclaration(Record *CurRec, +Init *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 (Type == 0) return 0; if (Lex.getCode() != tgtok::Id) { TokError("Expected identifier in declaration"); - return ""; + return 0; } SMLoc IdLoc = Lex.getLoc(); - std::string DeclName = Lex.getCurStrVal(); + Init *DeclName = StringInit::get(Lex.getCurStrVal()); Lex.Lex(); if (ParsingTemplateArgs) { if (CurRec) { - DeclName = CurRec->getName() + ":" + DeclName; + DeclName = QualifyName(*CurRec, CurMultiClass, DeclName, ":"); } else { assert(CurMultiClass); } if (CurMultiClass) - DeclName = CurMultiClass->Rec.getName() + "::" + DeclName; + DeclName = QualifyName(CurMultiClass->Rec, CurMultiClass, DeclName, + "::"); } // Add the value. if (AddValue(CurRec, IdLoc, RecordVal(DeclName, Type, HasField))) - return ""; + return 0; // If a value is present, parse it. if (Lex.getCode() == tgtok::equal) { @@ -1498,7 +1600,7 @@ std::string TGParser::ParseDeclaration(Record *CurRec, Init *Val = ParseValue(CurRec, Type); if (Val == 0 || SetValue(CurRec, ValLoc, DeclName, std::vector(), Val)) - return ""; + return 0; } return DeclName; @@ -1518,8 +1620,8 @@ bool TGParser::ParseTemplateArgList(Record *CurRec) { Record *TheRecToAddTo = CurRec ? CurRec : &CurMultiClass->Rec; // Read the first declaration. - std::string TemplArg = ParseDeclaration(CurRec, true/*templateargs*/); - if (TemplArg.empty()) + Init *TemplArg = ParseDeclaration(CurRec, true/*templateargs*/); + if (TemplArg == 0) return true; TheRecToAddTo->addTemplateArg(TemplArg); @@ -1529,7 +1631,7 @@ bool TGParser::ParseTemplateArgList(Record *CurRec) { // Read the following declarations. TemplArg = ParseDeclaration(CurRec, true/*templateargs*/); - if (TemplArg.empty()) + if (TemplArg == 0) return true; TheRecToAddTo->addTemplateArg(TemplArg); } @@ -1547,7 +1649,7 @@ bool TGParser::ParseTemplateArgList(Record *CurRec) { /// BodyItem ::= LET ID OptionalBitList '=' Value ';' bool TGParser::ParseBodyItem(Record *CurRec) { if (Lex.getCode() != tgtok::Let) { - if (ParseDeclaration(CurRec, false).empty()) + if (ParseDeclaration(CurRec, false) == 0) return true; if (Lex.getCode() != tgtok::semi) @@ -1668,22 +1770,24 @@ bool TGParser::ParseDef(MultiClass *CurMultiClass) { Lex.Lex(); // Eat the 'def' token. // Parse ObjectName and make a record for it. - Record *CurRec = new Record(ParseObjectName(), DefLoc, Records); + Record *CurRec = new Record(ParseObjectName(CurMultiClass), DefLoc, Records); if (!CurMultiClass) { // Top-level def definition. // Ensure redefinition doesn't happen. if (Records.getDef(CurRec->getName())) { - Error(DefLoc, "def '" + CurRec->getName() + "' already defined"); + Error(DefLoc, "def '" + CurRec->getNameInitAsString() + + "' already defined"); return true; } Records.addDef(CurRec); } else { // 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]->getName() == CurRec->getName()) { - Error(DefLoc, "def '" + CurRec->getName() + + if (CurMultiClass->DefPrototypes[i]->getNameInit() + == CurRec->getNameInit()) { + Error(DefLoc, "def '" + CurRec->getNameInitAsString() + "' already defined in this multiclass!"); return true; } @@ -1704,7 +1808,7 @@ bool TGParser::ParseDef(MultiClass *CurMultiClass) { if (CurMultiClass) { // Copy the template arguments for the multiclass into the def. - const std::vector &TArgs = + const std::vector &TArgs = CurMultiClass->Rec.getTemplateArgs(); for (unsigned i = 0, e = TArgs.size(); i != e; ++i) { @@ -1717,7 +1821,6 @@ bool TGParser::ParseDef(MultiClass *CurMultiClass) { return false; } - /// ParseClass - Parse a tblgen class definition. /// /// ClassInst ::= CLASS ID TemplateArgList? ObjectBody @@ -1732,10 +1835,11 @@ bool TGParser::ParseClass() { Record *CurRec = Records.getClass(Lex.getCurStrVal()); if (CurRec) { // If the body was previously defined, this is an error. - if (!CurRec->getValues().empty() || + if (CurRec->getValues().size() > 1 || // Account for NAME. !CurRec->getSuperClasses().empty() || !CurRec->getTemplateArgs().empty()) - return TokError("Class '" + CurRec->getName() + "' already defined"); + return TokError("Class '" + CurRec->getNameInitAsString() + + "' already defined"); } else { // If this is the first reference to this class, create and add it. CurRec = new Record(Lex.getCurStrVal(), Lex.getLoc(), Records); @@ -1919,6 +2023,152 @@ bool TGParser::ParseMultiClass() { return false; } +Record *TGParser:: +InstantiateMulticlassDef(MultiClass &MC, + Record *DefProto, + Init *DefmPrefix, + SMLoc DefmPrefixLoc) { + // We need to preserve DefProto so it can be reused for later + // instantiations, so create a new Record to inherit from it. + + // Add in the defm name. If the defm prefix is empty, give each + // instantiated def a unique name. Otherwise, if "#NAME#" exists in the + // name, substitute the prefix for #NAME#. Otherwise, use the defm name + // as a prefix. + + if (DefmPrefix == 0) + DefmPrefix = StringInit::get(GetNewAnonymousName()); + + Init *DefName = DefProto->getNameInit(); + + StringInit *DefNameString = dynamic_cast(DefName); + + if (DefNameString != 0) { + // We have a fully expanded string so there are no operators to + // resolve. We should concatenate the given prefix and name. + DefName = + BinOpInit::get(BinOpInit::STRCONCAT, + UnOpInit::get(UnOpInit::CAST, DefmPrefix, + StringRecTy::get())->Fold(DefProto, &MC), + DefName, StringRecTy::get())->Fold(DefProto, &MC); + } + + Record *CurRec = new Record(DefName, DefmPrefixLoc, Records); + + SubClassReference Ref; + Ref.RefLoc = DefmPrefixLoc; + Ref.Rec = DefProto; + AddSubClass(CurRec, Ref); + + if (DefNameString == 0) { + // We must resolve references to NAME. + if (SetValue(CurRec, Ref.RefLoc, "NAME", std::vector(), + DefmPrefix)) { + Error(DefmPrefixLoc, "Could not resolve " + + CurRec->getNameInitAsString() + ":NAME to '" + + DefmPrefix->getAsUnquotedString() + "'"); + return 0; + } + + RecordVal *DefNameRV = CurRec->getValue("NAME"); + CurRec->resolveReferencesTo(DefNameRV); + } + + if (!CurMultiClass) { + // We do this after resolving NAME because before resolution, many + // multiclass defs will have the same name expression. If we are + // currently in a multiclass, it means this defm appears inside a + // multiclass and its name won't be fully resolvable until we see + // the top-level defm. Therefore, we don't add this to the + // RecordKeeper at this point. If we did we could get duplicate + // defs as more than one probably refers to NAME or some other + // common internal placeholder. + + // Ensure redefinition doesn't happen. + if (Records.getDef(CurRec->getNameInitAsString())) { + Error(DefmPrefixLoc, "def '" + CurRec->getNameInitAsString() + + "' already defined, instantiating defm with subdef '" + + DefProto->getNameInitAsString() + "'"); + return 0; + } + + Records.addDef(CurRec); + } + + return CurRec; +} + +bool TGParser::ResolveMulticlassDefArgs(MultiClass &MC, + Record *CurRec, + SMLoc DefmPrefixLoc, + SMLoc SubClassLoc, + const std::vector &TArgs, + std::vector &TemplateVals, + bool DeleteArgs) { + // 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) { + // Check if a value is specified for this temp-arg. + if (i < TemplateVals.size()) { + // Set it now. + if (SetValue(CurRec, DefmPrefixLoc, TArgs[i], std::vector(), + TemplateVals[i])) + return true; + + // Resolve it next. + CurRec->resolveReferencesTo(CurRec->getValue(TArgs[i])); + + if (DeleteArgs) + // Now remove it. + CurRec->removeValue(TArgs[i]); + + } else if (!CurRec->getValue(TArgs[i])->getValue()->isComplete()) { + return Error(SubClassLoc, "value not specified for template argument #"+ + utostr(i) + " (" + TArgs[i]->getAsUnquotedString() + + ") of multiclassclass '" + MC.Rec.getNameInitAsString() + + "'"); + } + } + return false; +} + +bool TGParser::ResolveMulticlassDef(MultiClass &MC, + Record *CurRec, + Record *DefProto, + SMLoc DefmPrefixLoc) { + // If the mdef is inside a 'let' expression, add to each def. + for (unsigned i = 0, e = LetStack.size(); i != e; ++i) + for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j) + if (SetValue(CurRec, LetStack[i][j].Loc, LetStack[i][j].Name, + LetStack[i][j].Bits, LetStack[i][j].Value)) + return Error(DefmPrefixLoc, "when instantiating this defm"); + + // Don't create a top level definition for defm inside multiclasses, + // instead, only update the prototypes and bind the template args + // with the new created definition. + if (CurMultiClass) { + for (unsigned i = 0, e = CurMultiClass->DefPrototypes.size(); + i != e; ++i) + if (CurMultiClass->DefPrototypes[i]->getNameInit() + == CurRec->getNameInit()) + return Error(DefmPrefixLoc, "defm '" + CurRec->getNameInitAsString() + + "' already defined in this multiclass!"); + CurMultiClass->DefPrototypes.push_back(CurRec); + + // Copy the template arguments for the multiclass into the new def. + const std::vector &TA = + CurMultiClass->Rec.getTemplateArgs(); + + for (unsigned i = 0, e = TA.size(); i != e; ++i) { + const RecordVal *RV = CurMultiClass->Rec.getValue(TA[i]); + assert(RV && "Template arg doesn't exist?"); + CurRec->addValue(*RV); + } + } + + return false; +} + /// ParseDefm - Parse the instantiation of a multiclass. /// /// DefMInst ::= DEFM ID ':' DefmSubClassRef ';' @@ -1926,10 +2176,10 @@ bool TGParser::ParseMultiClass() { bool TGParser::ParseDefm(MultiClass *CurMultiClass) { assert(Lex.getCode() == tgtok::Defm && "Unexpected token!"); - std::string DefmPrefix; + Init *DefmPrefix = 0; + if (Lex.Lex() == tgtok::Id) { // eat the defm. - DefmPrefix = Lex.getCurStrVal(); - Lex.Lex(); // Eat the defm prefix. + DefmPrefix = ParseObjectName(CurMultiClass); } SMLoc DefmPrefixLoc = Lex.getLoc(); @@ -1959,7 +2209,7 @@ bool TGParser::ParseDefm(MultiClass *CurMultiClass) { std::vector &TemplateVals = Ref.TemplateArgs; // Verify that the correct number of template arguments were specified. - const std::vector &TArgs = MC->Rec.getTemplateArgs(); + const std::vector &TArgs = MC->Rec.getTemplateArgs(); if (TArgs.size() < TemplateVals.size()) return Error(SubClassLoc, "more template args specified than multiclass expects"); @@ -1968,99 +2218,21 @@ bool TGParser::ParseDefm(MultiClass *CurMultiClass) { for (unsigned i = 0, e = MC->DefPrototypes.size(); i != e; ++i) { Record *DefProto = MC->DefPrototypes[i]; - // Add in the defm name. If the defm prefix is empty, give each - // instantiated def a unique name. Otherwise, if "#NAME#" exists in the - // name, substitute the prefix for #NAME#. Otherwise, use the defm name - // as a prefix. - std::string DefName = DefProto->getName(); - if (DefmPrefix.empty()) { - DefName = GetNewAnonymousName(); - } else { - std::string::size_type idx = DefName.find("#NAME#"); - if (idx != std::string::npos) { - DefName.replace(idx, 6, DefmPrefix); - } else { - // Add the suffix to the defm name to get the new name. - DefName = DefmPrefix + DefName; - } - } - - Record *CurRec = new Record(DefName, DefmPrefixLoc, Records); - - SubClassReference Ref; - Ref.RefLoc = DefmPrefixLoc; - Ref.Rec = DefProto; - AddSubClass(CurRec, Ref); - - // 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) { - // Check if a value is specified for this temp-arg. - if (i < TemplateVals.size()) { - // Set it now. - if (SetValue(CurRec, DefmPrefixLoc, TArgs[i], std::vector(), - TemplateVals[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(SubClassLoc, - "value not specified for template argument #"+ - utostr(i) + " (" + TArgs[i] + ") of multiclassclass '" + - MC->Rec.getName() + "'"); - } - } - - // If the mdef is inside a 'let' expression, add to each def. - for (unsigned i = 0, e = LetStack.size(); i != e; ++i) - for (unsigned j = 0, e = LetStack[i].size(); j != e; ++j) - if (SetValue(CurRec, LetStack[i][j].Loc, LetStack[i][j].Name, - LetStack[i][j].Bits, LetStack[i][j].Value)) { - Error(DefmPrefixLoc, "when instantiating this defm"); - return true; - } - - // Ensure redefinition doesn't happen. - if (Records.getDef(CurRec->getName())) - return Error(DefmPrefixLoc, "def '" + CurRec->getName() + - "' already defined, instantiating defm with subdef '" + - DefProto->getName() + "'"); - - // Don't create a top level definition for defm inside multiclasses, - // instead, only update the prototypes and bind the template args - // with the new created definition. - if (CurMultiClass) { - for (unsigned i = 0, e = CurMultiClass->DefPrototypes.size(); - i != e; ++i) { - if (CurMultiClass->DefPrototypes[i]->getName() == CurRec->getName()) { - Error(DefmPrefixLoc, "defm '" + CurRec->getName() + - "' already defined in this multiclass!"); - return 0; - } - } - CurMultiClass->DefPrototypes.push_back(CurRec); + Record *CurRec = InstantiateMulticlassDef(*MC, DefProto, DefmPrefix, DefmPrefixLoc); + if (!CurRec) + return true; - // Copy the template arguments for the multiclass into the new def. - const std::vector &TA = - CurMultiClass->Rec.getTemplateArgs(); + if (ResolveMulticlassDefArgs(*MC, CurRec, DefmPrefixLoc, SubClassLoc, + TArgs, TemplateVals, true/*Delete args*/)) + return Error(SubClassLoc, "could not instantiate def"); - for (unsigned i = 0, e = TA.size(); i != e; ++i) { - const RecordVal *RV = CurMultiClass->Rec.getValue(TA[i]); - assert(RV && "Template arg doesn't exist?"); - CurRec->addValue(*RV); - } - } else { - Records.addDef(CurRec); - } + if (ResolveMulticlassDef(*MC, CurRec, DefProto, DefmPrefixLoc)) + return Error(SubClassLoc, "could not instantiate def"); NewRecDefs.push_back(CurRec); } + if (Lex.getCode() != tgtok::comma) break; Lex.Lex(); // eat ','.