X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FAsmParser%2FLLParser.h;h=93e7f778ebcb75772d3b0952f4fac6bced5b3199;hb=5d7a5a4f53304869ae5b76771ab67213447b65a5;hp=d6cb197e9783a88bd7bf677fc9f651f91d0f8934;hpb=3ed88efb03c63aae5542efcdfc5cedec9bc4c18a;p=oota-llvm.git diff --git a/lib/AsmParser/LLParser.h b/lib/AsmParser/LLParser.h index d6cb197e978..93e7f778ebc 100644 --- a/lib/AsmParser/LLParser.h +++ b/lib/AsmParser/LLParser.h @@ -15,7 +15,10 @@ #define LLVM_ASMPARSER_LLPARSER_H #include "LLLexer.h" +#include "llvm/Module.h" #include "llvm/Type.h" +#include "llvm/ADT/DenseMap.h" +#include "llvm/Support/ValueHandle.h" #include namespace llvm { @@ -27,37 +30,91 @@ namespace llvm { class Instruction; class Constant; class GlobalValue; - struct ValID; + class MDString; + class MDNode; + + /// 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. + } Kind; + + LLLexer::LocTy Loc; + unsigned UIntVal; + std::string StrVal, StrVal2; + APSInt APSIntVal; + APFloat APFloatVal; + Constant *ConstantVal; + MDNode *MDNodeVal; + MDString *MDStringVal; + ValID() : APFloatVal(0.0) {} + + bool operator<(const ValID &RHS) const { + if (Kind == t_LocalID || Kind == t_GlobalID) + return UIntVal < RHS.UIntVal; + assert((Kind == t_LocalName || Kind == t_GlobalName) && + "Ordering not defined for this ValID kind yet"); + return StrVal < RHS.StrVal; + } + }; class LLParser { public: typedef LLLexer::LocTy LocTy; private: - + LLVMContext &Context; LLLexer Lex; Module *M; + // 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; + }; + DenseMap > ForwardRefInstMetadata; + // Type resolution handling data structures. std::map > ForwardRefTypes; std::map > ForwardRefTypeIDs; std::vector NumberedTypes; - + std::vector > NumberedMetadata; + std::map, LocTy> > ForwardRefMDNodes; 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) {} @@ -68,25 +125,36 @@ namespace llvm { std::map > ForwardRefVals; std::map > ForwardRefValIDs; std::vector NumberedVals; - public: - LLParser(MemoryBuffer *F, ParseError &Err) : Lex(F, Err), M(0) {} - Module *Run(); + // References to blockaddress. The key is the function ValID, the value is + // a list of references to blocks in that function. + std::map > > + ForwardRefBlockAddresses; + + Function *MallocF; + public: + LLParser(MemoryBuffer *F, SourceMgr &SM, SMDiagnostic &Err, Module *m) : + Context(m->getContext()), Lex(F, SM, Err, m->getContext()), + M(m), MallocF(NULL) {} + 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); - + // Helper Routines. bool ParseToken(lltok::Kind T, const char *ErrMsg); bool EatIfPresent(lltok::Kind T) { @@ -94,10 +162,12 @@ 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; } @@ -116,11 +186,19 @@ 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(); bool ValidateEndOfModule(); @@ -131,18 +209,24 @@ namespace llvm { bool ParseNamedType(); bool ParseDeclare(); 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 ParseType(PATypeHolder &Result, LocTy &Loc) { + bool ParseType(PATypeHolder &Result, bool AllowVoid = false); + bool ParseType(PATypeHolder &Result, LocTy &Loc, bool AllowVoid = false) { Loc = Lex.getLoc(); - return ParseType(Result); + return ParseType(Result, AllowVoid); } bool ParseTypeRec(PATypeHolder &H); bool ParseStructType(PATypeHolder &H, bool Packed); @@ -150,14 +234,6 @@ namespace llvm { 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); - - // Function Semantic Analysis. class PerFunctionState { LLParser &P; @@ -165,63 +241,84 @@ 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); - + /// SetInstName - After an instruction is parsed and inserted into its /// basic block, this installs its name. bool SetInstName(int NameID, const std::string &NameStr, LocTy NameLoc, Instruction *Inst); - + /// GetBB - Get a basic block with the specified name or ID, creating a /// forward reference record if needed. This can return null if the value /// is not a BasicBlock. BasicBlock *GetBB(const std::string &Name, LocTy Loc); BasicBlock *GetBB(unsigned ID, LocTy Loc); - + /// DefineBB - Define the specified basic block, which is either named or /// unnamed. If there is an error, this returns null otherwise it returns /// the block being defined. BasicBlock *DefineBB(const std::string &Name, LocTy Loc); }; - + bool ConvertValIDToValue(const Type *Ty, ValID &ID, Value *&V, - PerFunctionState &PFS); - + PerFunctionState *PFS); + bool ParseValue(const Type *Ty, Value *&V, PerFunctionState &PFS); bool ParseValue(const Type *Ty, Value *&V, LocTy &Loc, PerFunctionState &PFS) { Loc = Lex.getLoc(); return ParseValue(Ty, V, PFS); } - + bool ParseTypeAndValue(Value *&V, PerFunctionState &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; Value *V; unsigned Attrs; - ParamInfo(LocTy loc, Value *v, unsigned attrs) + ParamInfo(LocTy loc, Value *v, unsigned attrs) : Loc(loc), V(v), Attrs(attrs) {} }; bool ParseParameterList(SmallVectorImpl &ArgList, PerFunctionState &PFS); - + + // Constant Parsing. + bool ParseValID(ValID &ID, PerFunctionState *PFS = NULL); + bool ParseGlobalValue(const 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; @@ -232,40 +329,49 @@ namespace llvm { : Loc(L), Type(Ty), Attrs(Attr), Name(N) {} }; bool ParseArgumentList(std::vector &ArgList, - bool &isVarArg); + bool &isVarArg, bool inType); 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); + + int 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); + + bool ParseArithmetic(Instruction *&I, PerFunctionState &PFS, unsigned Opc, + unsigned OperandType); bool ParseLogical(Instruction *&I, PerFunctionState &PFS, unsigned Opc); bool ParseCompare(Instruction *&I, PerFunctionState &PFS, unsigned Opc); bool ParseCast(Instruction *&I, PerFunctionState &PFS, unsigned Opc); bool ParseSelect(Instruction *&I, PerFunctionState &PFS); - bool ParseVAArg(Instruction *&I, PerFunctionState &PFS); + bool ParseVA_Arg(Instruction *&I, PerFunctionState &PFS); 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); + int ParseAlloc(Instruction *&I, PerFunctionState &PFS, + BasicBlock *BB = 0, bool isAlloca = true); + bool ParseFree(Instruction *&I, PerFunctionState &PFS, BasicBlock *BB); + int ParseLoad(Instruction *&I, PerFunctionState &PFS, bool isVolatile); + int 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 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