X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAsmParser%2FLLParser.h;h=41e42cad19e6ba800d13707fbdee25d0a5a57892;hb=db125cfaf57cc83e7dd7453de2d509bc8efd0e5e;hp=924c9293cb186d87294e17e5da56dfccb39f484e;hpb=c137ea6cf5febeff6aad20c51921e48a4817a2e1;p=oota-llvm.git diff --git a/lib/AsmParser/LLParser.h b/lib/AsmParser/LLParser.h index 924c9293cb1..41e42cad19e 100644 --- a/lib/AsmParser/LLParser.h +++ b/lib/AsmParser/LLParser.h @@ -17,6 +17,9 @@ #include "LLLexer.h" #include "llvm/Module.h" #include "llvm/Type.h" +#include "llvm/ADT/DenseMap.h" +#include "llvm/ADT/StringMap.h" +#include "llvm/Support/ValueHandle.h" #include namespace llvm { @@ -30,68 +33,117 @@ namespace llvm { class GlobalValue; class MDString; class MDNode; - class LLVMContext; - struct ValID; - + class StructType; + + /// ValID - Represents a reference of a definition of some sort with no type. + /// There are several cases where we have to parse the value but where the + /// type can depend on later context. This may either be a numeric reference + /// or a symbolic (%var) reference. This is just a discriminated union. + struct ValID { + enum { + t_LocalID, t_GlobalID, // ID in UIntVal. + t_LocalName, t_GlobalName, // Name in StrVal. + t_APSInt, t_APFloat, // Value in APSIntVal/APFloatVal. + t_Null, t_Undef, t_Zero, // No value. + t_EmptyArray, // No value: [] + t_Constant, // Value in ConstantVal. + t_InlineAsm, // Value in StrVal/StrVal2/UIntVal. + t_MDNode, // Value in MDNodeVal. + t_MDString, // Value in MDStringVal. + t_ConstantStruct, // Value in ConstantStructElts. + t_PackedConstantStruct // Value in ConstantStructElts. + } Kind; + + LLLexer::LocTy Loc; + unsigned UIntVal; + std::string StrVal, StrVal2; + APSInt APSIntVal; + APFloat APFloatVal; + Constant *ConstantVal; + MDNode *MDNodeVal; + MDString *MDStringVal; + Constant **ConstantStructElts; + + ValID() : Kind(t_LocalID), APFloatVal(0.0) {} + ~ValID() { + if (Kind == t_ConstantStruct || Kind == t_PackedConstantStruct) + delete [] ConstantStructElts; + } + + bool operator<(const ValID &RHS) const { + if (Kind == t_LocalID || Kind == t_GlobalID) + return UIntVal < RHS.UIntVal; + assert((Kind == t_LocalName || Kind == t_GlobalName || + Kind == t_ConstantStruct || Kind == t_PackedConstantStruct) && + "Ordering not defined for this ValID kind yet"); + return StrVal < RHS.StrVal; + } + }; + class LLParser { public: typedef LLLexer::LocTy LocTy; private: - const LLVMContext& Context; + LLVMContext &Context; LLLexer Lex; Module *M; - - // Type resolution handling data structures. - std::map > ForwardRefTypes; - std::map > ForwardRefTypeIDs; - std::vector NumberedTypes; - /// MetadataCache - This map keeps track of parsed metadata constants. - std::map MetadataCache; - struct UpRefRecord { - /// Loc - This is the location of the upref. - LocTy Loc; - - /// NestingLevel - The number of nesting levels that need to be popped - /// before this type is resolved. - unsigned NestingLevel; - - /// LastContainedTy - This is the type at the current binding level for - /// the type. Every time we reduce the nesting level, this gets updated. - const Type *LastContainedTy; - - /// UpRefTy - This is the actual opaque type that the upreference is - /// represented with. - OpaqueType *UpRefTy; - - UpRefRecord(LocTy L, unsigned NL, OpaqueType *URTy) - : Loc(L), NestingLevel(NL), LastContainedTy((Type*)URTy), - UpRefTy(URTy) {} + + // Instruction metadata resolution. Each instruction can have a list of + // MDRef info associated with them. + // + // The simpler approach of just creating temporary MDNodes and then calling + // RAUW on them when the definition is processed doesn't work because some + // instruction metadata kinds, such as dbg, get stored in the IR in an + // "optimized" format which doesn't participate in the normal value use + // lists. This means that RAUW doesn't work, even on temporary MDNodes + // which otherwise support RAUW. Instead, we defer resolving MDNode + // references until the definitions have been processed. + struct MDRef { + SMLoc Loc; + unsigned MDKind, MDSlot; }; - std::vector UpRefs; + DenseMap > ForwardRefInstMetadata; + + // Type resolution handling data structures. The location is set when we + // have processed a use of the type but not a definition yet. + StringMap > NamedTypes; + std::vector > NumberedTypes; + + std::vector > NumberedMetadata; + std::map, LocTy> > ForwardRefMDNodes; // Global Value reference information. std::map > ForwardRefVals; std::map > ForwardRefValIDs; std::vector NumberedVals; + + // References to blockaddress. The key is the function ValID, the value is + // a list of references to blocks in that function. + std::map > > + ForwardRefBlockAddresses; + public: - LLParser(MemoryBuffer *F, ParseError &Err, Module *m) : - Context(M->getContext()), Lex(F, Err), M(m) {} + LLParser(MemoryBuffer *F, SourceMgr &SM, SMDiagnostic &Err, Module *m) : + Context(m->getContext()), Lex(F, SM, Err, m->getContext()), + M(m) {} bool Run(); + LLVMContext &getContext() { return Context; } + private: - bool Error(LocTy L, const std::string &Msg) const { + bool Error(LocTy L, const Twine &Msg) const { return Lex.Error(L, Msg); } - bool TokError(const std::string &Msg) const { + bool TokError(const Twine &Msg) const { return Error(Lex.getLoc(), Msg); } /// GetGlobalVal - Get a value with the specified name or ID, creating a /// forward reference record if needed. This can return null if the value /// exists but does not have the right type. - GlobalValue *GetGlobalVal(const std::string &N, const Type *Ty, LocTy Loc); - GlobalValue *GetGlobalVal(unsigned ID, const Type *Ty, LocTy Loc); + GlobalValue *GetGlobalVal(const std::string &N, Type *Ty, LocTy Loc); + GlobalValue *GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc); // Helper Routines. bool ParseToken(lltok::Kind T, const char *ErrMsg); @@ -100,10 +152,12 @@ namespace llvm { Lex.Lex(); return true; } - bool ParseOptionalToken(lltok::Kind T, bool &Present) { + bool ParseOptionalToken(lltok::Kind T, bool &Present, LocTy *Loc = 0) { if (Lex.getKind() != T) { Present = false; } else { + if (Loc) + *Loc = Lex.getLoc(); Lex.Lex(); Present = true; } @@ -122,10 +176,18 @@ namespace llvm { bool HasLinkage; return ParseOptionalLinkage(Linkage, HasLinkage); } bool ParseOptionalVisibility(unsigned &Visibility); - bool ParseOptionalCallingConv(unsigned &CC); + bool ParseOptionalCallingConv(CallingConv::ID &CC); bool ParseOptionalAlignment(unsigned &Alignment); - bool ParseOptionalCommaAlignment(unsigned &Alignment); - bool ParseIndexList(SmallVectorImpl &Indices); + bool ParseOptionalStackAlignment(unsigned &Alignment); + bool ParseOptionalCommaAlign(unsigned &Alignment, bool &AteExtraComma); + bool ParseIndexList(SmallVectorImpl &Indices,bool &AteExtraComma); + bool ParseIndexList(SmallVectorImpl &Indices) { + bool AteExtraComma; + if (ParseIndexList(Indices, AteExtraComma)) return true; + if (AteExtraComma) + return TokError("expected index"); + return false; + } // Top-Level Entities bool ParseTopLevelEntities(); @@ -139,32 +201,31 @@ namespace llvm { bool ParseDefine(); bool ParseGlobalType(bool &IsConstant); + bool ParseUnnamedGlobal(); bool ParseNamedGlobal(); bool ParseGlobal(const std::string &Name, LocTy Loc, unsigned Linkage, bool HasLinkage, unsigned Visibility); bool ParseAlias(const std::string &Name, LocTy Loc, unsigned Visibility); bool ParseStandaloneMetadata(); + bool ParseNamedMetadata(); + bool ParseMDString(MDString *&Result); + bool ParseMDNodeID(MDNode *&Result); + bool ParseMDNodeID(MDNode *&Result, unsigned &SlotNo); // Type Parsing. - bool ParseType(PATypeHolder &Result, bool AllowVoid = false); - bool ParseType(PATypeHolder &Result, LocTy &Loc, bool AllowVoid = false) { + bool ParseType(Type *&Result, bool AllowVoid = false); + bool ParseType(Type *&Result, LocTy &Loc, bool AllowVoid = false) { Loc = Lex.getLoc(); return ParseType(Result, AllowVoid); } - bool ParseTypeRec(PATypeHolder &H); - bool ParseStructType(PATypeHolder &H, bool Packed); - bool ParseArrayVectorType(PATypeHolder &H, bool isVector); - bool ParseFunctionType(PATypeHolder &Result); - PATypeHolder HandleUpRefs(const Type *Ty); - - // Constants. - bool ParseValID(ValID &ID); - bool ConvertGlobalValIDToValue(const Type *Ty, ValID &ID, Constant *&V); - bool ParseGlobalValue(const Type *Ty, Constant *&V); - bool ParseGlobalTypeAndValue(Constant *&V); - bool ParseGlobalValueVector(SmallVectorImpl &Elts); - bool ParseMDNodeVector(SmallVectorImpl &); + bool ParseAnonStructType(Type *&Result, bool Packed); + bool ParseStructBody(SmallVectorImpl &Body); + bool ParseStructDefinition(SMLoc TypeLoc, StringRef Name, + std::pair &Entry, + Type *&ResultTy); + bool ParseArrayVectorType(Type *&Result, bool isVector); + bool ParseFunctionType(Type *&Result); // Function Semantic Analysis. class PerFunctionState { @@ -173,19 +234,23 @@ namespace llvm { std::map > ForwardRefVals; std::map > ForwardRefValIDs; std::vector NumberedVals; + + /// FunctionNumber - If this is an unnamed function, this is the slot + /// number of it, otherwise it is -1. + int FunctionNumber; public: - PerFunctionState(LLParser &p, Function &f); + PerFunctionState(LLParser &p, Function &f, int FunctionNumber); ~PerFunctionState(); Function &getFunction() const { return F; } - bool VerifyFunctionComplete(); + bool FinishFunction(); /// GetVal - Get a value with the specified name or ID, creating a /// forward reference record if needed. This can return null if the value /// exists but does not have the right type. - Value *GetVal(const std::string &Name, const Type *Ty, LocTy Loc); - Value *GetVal(unsigned ID, const Type *Ty, LocTy Loc); + Value *GetVal(const std::string &Name, Type *Ty, LocTy Loc); + Value *GetVal(unsigned ID, Type *Ty, LocTy Loc); /// SetInstName - After an instruction is parsed and inserted into its /// basic block, this installs its name. @@ -204,21 +269,34 @@ namespace llvm { BasicBlock *DefineBB(const std::string &Name, LocTy Loc); }; - bool ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V, - PerFunctionState &PFS); + bool ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V, + PerFunctionState *PFS); - bool ParseValue(const Type *Ty, Value *&V, PerFunctionState &PFS); - bool ParseValue(const Type *Ty, Value *&V, LocTy &Loc, + bool ParseValue(Type *Ty, Value *&V, PerFunctionState *PFS); + bool ParseValue(Type *Ty, Value *&V, PerFunctionState &PFS) { + return ParseValue(Ty, V, &PFS); + } + bool ParseValue(Type *Ty, Value *&V, LocTy &Loc, PerFunctionState &PFS) { Loc = Lex.getLoc(); - return ParseValue(Ty, V, PFS); + return ParseValue(Ty, V, &PFS); } - bool ParseTypeAndValue(Value *&V, PerFunctionState &PFS); + bool ParseTypeAndValue(Value *&V, PerFunctionState *PFS); + bool ParseTypeAndValue(Value *&V, PerFunctionState &PFS) { + return ParseTypeAndValue(V, &PFS); + } bool ParseTypeAndValue(Value *&V, LocTy &Loc, PerFunctionState &PFS) { Loc = Lex.getLoc(); return ParseTypeAndValue(V, PFS); } + bool ParseTypeAndBasicBlock(BasicBlock *&BB, LocTy &Loc, + PerFunctionState &PFS); + bool ParseTypeAndBasicBlock(BasicBlock *&BB, PerFunctionState &PFS) { + LocTy Loc; + return ParseTypeAndBasicBlock(BB, Loc, PFS); + } + struct ParamInfo { LocTy Loc; @@ -230,29 +308,41 @@ namespace llvm { bool ParseParameterList(SmallVectorImpl &ArgList, PerFunctionState &PFS); + // Constant Parsing. + bool ParseValID(ValID &ID, PerFunctionState *PFS = NULL); + bool ParseGlobalValue(Type *Ty, Constant *&V); + bool ParseGlobalTypeAndValue(Constant *&V); + bool ParseGlobalValueVector(SmallVectorImpl &Elts); + bool ParseMetadataListValue(ValID &ID, PerFunctionState *PFS); + bool ParseMetadataValue(ValID &ID, PerFunctionState *PFS); + bool ParseMDNodeVector(SmallVectorImpl &, PerFunctionState *PFS); + bool ParseInstructionMetadata(Instruction *Inst, PerFunctionState *PFS); + // Function Parsing. struct ArgInfo { LocTy Loc; - PATypeHolder Type; + Type *Ty; unsigned Attrs; std::string Name; - ArgInfo(LocTy L, PATypeHolder Ty, unsigned Attr, const std::string &N) - : Loc(L), Type(Ty), Attrs(Attr), Name(N) {} + ArgInfo(LocTy L, Type *ty, unsigned Attr, const std::string &N) + : Loc(L), Ty(ty), Attrs(Attr), Name(N) {} }; - bool ParseArgumentList(std::vector &ArgList, - bool &isVarArg, bool inType); + bool ParseArgumentList(SmallVectorImpl &ArgList, bool &isVarArg); bool ParseFunctionHeader(Function *&Fn, bool isDefine); bool ParseFunctionBody(Function &Fn); bool ParseBasicBlock(PerFunctionState &PFS); - // Instruction Parsing. - bool ParseInstruction(Instruction *&Inst, BasicBlock *BB, - PerFunctionState &PFS); + // Instruction Parsing. Each instruction parsing routine can return with a + // normal result, an error result, or return having eaten an extra comma. + enum InstResult { InstNormal = 0, InstError = 1, InstExtraComma = 2 }; + int ParseInstruction(Instruction *&Inst, BasicBlock *BB, + PerFunctionState &PFS); bool ParseCmpPredicate(unsigned &Pred, unsigned Opc); bool ParseRet(Instruction *&Inst, BasicBlock *BB, PerFunctionState &PFS); bool ParseBr(Instruction *&Inst, PerFunctionState &PFS); bool ParseSwitch(Instruction *&Inst, PerFunctionState &PFS); + bool ParseIndirectBr(Instruction *&Inst, PerFunctionState &PFS); bool ParseInvoke(Instruction *&Inst, PerFunctionState &PFS); bool ParseArithmetic(Instruction *&I, PerFunctionState &PFS, unsigned Opc, @@ -265,16 +355,18 @@ namespace llvm { bool ParseExtractElement(Instruction *&I, PerFunctionState &PFS); bool ParseInsertElement(Instruction *&I, PerFunctionState &PFS); bool ParseShuffleVector(Instruction *&I, PerFunctionState &PFS); - bool ParsePHI(Instruction *&I, PerFunctionState &PFS); + int ParsePHI(Instruction *&I, PerFunctionState &PFS); bool ParseCall(Instruction *&I, PerFunctionState &PFS, bool isTail); - bool ParseAlloc(Instruction *&I, PerFunctionState &PFS, unsigned Opc); - bool ParseFree(Instruction *&I, PerFunctionState &PFS); - bool ParseLoad(Instruction *&I, PerFunctionState &PFS, bool isVolatile); - bool ParseStore(Instruction *&I, PerFunctionState &PFS, bool isVolatile); - bool ParseGetResult(Instruction *&I, PerFunctionState &PFS); - bool ParseGetElementPtr(Instruction *&I, PerFunctionState &PFS); - bool ParseExtractValue(Instruction *&I, PerFunctionState &PFS); - bool ParseInsertValue(Instruction *&I, PerFunctionState &PFS); + int ParseAlloc(Instruction *&I, PerFunctionState &PFS); + int ParseLoad(Instruction *&I, PerFunctionState &PFS, bool isVolatile); + int ParseStore(Instruction *&I, PerFunctionState &PFS, bool isVolatile); + int ParseGetElementPtr(Instruction *&I, PerFunctionState &PFS); + int ParseExtractValue(Instruction *&I, PerFunctionState &PFS); + int ParseInsertValue(Instruction *&I, PerFunctionState &PFS); + + bool ResolveForwardRefBlockAddresses(Function *TheFn, + std::vector > &Refs, + PerFunctionState *PFS); }; } // End llvm namespace