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Diffstat (limited to 'contrib/llvm-project/llvm/lib/AsmParser/LLParser.h')
| -rw-r--r-- | contrib/llvm-project/llvm/lib/AsmParser/LLParser.h | 612 |
1 files changed, 612 insertions, 0 deletions
diff --git a/contrib/llvm-project/llvm/lib/AsmParser/LLParser.h b/contrib/llvm-project/llvm/lib/AsmParser/LLParser.h new file mode 100644 index 000000000000..610e2e262008 --- /dev/null +++ b/contrib/llvm-project/llvm/lib/AsmParser/LLParser.h @@ -0,0 +1,612 @@ +//===-- LLParser.h - Parser Class -------------------------------*- C++ -*-===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// +// +// This file defines the parser class for .ll files. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_LIB_ASMPARSER_LLPARSER_H +#define LLVM_LIB_ASMPARSER_LLPARSER_H + +#include "LLLexer.h" +#include "llvm/ADT/Optional.h" +#include "llvm/ADT/StringMap.h" +#include "llvm/IR/Attributes.h" +#include "llvm/IR/Instructions.h" +#include "llvm/IR/Module.h" +#include "llvm/IR/ModuleSummaryIndex.h" +#include "llvm/IR/Operator.h" +#include "llvm/IR/Type.h" +#include "llvm/IR/ValueHandle.h" +#include <map> + +namespace llvm { + class Module; + class OpaqueType; + class Function; + class Value; + class BasicBlock; + class Instruction; + class Constant; + class GlobalValue; + class Comdat; + class MDString; + class MDNode; + struct SlotMapping; + 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, t_None, // No value. + t_EmptyArray, // No value: [] + t_Constant, // Value in ConstantVal. + t_InlineAsm, // Value in FTy/StrVal/StrVal2/UIntVal. + t_ConstantStruct, // Value in ConstantStructElts. + t_PackedConstantStruct // Value in ConstantStructElts. + } Kind = t_LocalID; + + LLLexer::LocTy Loc; + unsigned UIntVal; + FunctionType *FTy = nullptr; + std::string StrVal, StrVal2; + APSInt APSIntVal; + APFloat APFloatVal{0.0}; + Constant *ConstantVal; + std::unique_ptr<Constant *[]> ConstantStructElts; + + ValID() = default; + ValID(const ValID &RHS) + : Kind(RHS.Kind), Loc(RHS.Loc), UIntVal(RHS.UIntVal), FTy(RHS.FTy), + StrVal(RHS.StrVal), StrVal2(RHS.StrVal2), APSIntVal(RHS.APSIntVal), + APFloatVal(RHS.APFloatVal), ConstantVal(RHS.ConstantVal) { + assert(!RHS.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: + LLVMContext &Context; + LLLexer Lex; + // Module being parsed, null if we are only parsing summary index. + Module *M; + // Summary index being parsed, null if we are only parsing Module. + ModuleSummaryIndex *Index; + SlotMapping *Slots; + + // 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; + }; + + SmallVector<Instruction*, 64> InstsWithTBAATag; + + // Type resolution handling data structures. The location is set when we + // have processed a use of the type but not a definition yet. + StringMap<std::pair<Type*, LocTy> > NamedTypes; + std::map<unsigned, std::pair<Type*, LocTy> > NumberedTypes; + + std::map<unsigned, TrackingMDNodeRef> NumberedMetadata; + std::map<unsigned, std::pair<TempMDTuple, LocTy>> ForwardRefMDNodes; + + // Global Value reference information. + std::map<std::string, std::pair<GlobalValue*, LocTy> > ForwardRefVals; + std::map<unsigned, std::pair<GlobalValue*, LocTy> > ForwardRefValIDs; + std::vector<GlobalValue*> NumberedVals; + + // Comdat forward reference information. + std::map<std::string, LocTy> ForwardRefComdats; + + // References to blockaddress. The key is the function ValID, the value is + // a list of references to blocks in that function. + std::map<ValID, std::map<ValID, GlobalValue *>> ForwardRefBlockAddresses; + class PerFunctionState; + /// Reference to per-function state to allow basic blocks to be + /// forward-referenced by blockaddress instructions within the same + /// function. + PerFunctionState *BlockAddressPFS; + + // Attribute builder reference information. + std::map<Value*, std::vector<unsigned> > ForwardRefAttrGroups; + std::map<unsigned, AttrBuilder> NumberedAttrBuilders; + + // Summary global value reference information. + std::map<unsigned, std::vector<std::pair<ValueInfo *, LocTy>>> + ForwardRefValueInfos; + std::map<unsigned, std::vector<std::pair<AliasSummary *, LocTy>>> + ForwardRefAliasees; + std::vector<ValueInfo> NumberedValueInfos; + + // Summary type id reference information. + std::map<unsigned, std::vector<std::pair<GlobalValue::GUID *, LocTy>>> + ForwardRefTypeIds; + + // Map of module ID to path. + std::map<unsigned, StringRef> ModuleIdMap; + + /// Only the llvm-as tool may set this to false to bypass + /// UpgradeDebuginfo so it can generate broken bitcode. + bool UpgradeDebugInfo; + + /// DataLayout string to override that in LLVM assembly. + StringRef DataLayoutStr; + + std::string SourceFileName; + + public: + LLParser(StringRef F, SourceMgr &SM, SMDiagnostic &Err, Module *M, + ModuleSummaryIndex *Index, LLVMContext &Context, + SlotMapping *Slots = nullptr, bool UpgradeDebugInfo = true, + StringRef DataLayoutString = "") + : Context(Context), Lex(F, SM, Err, Context), M(M), Index(Index), + Slots(Slots), BlockAddressPFS(nullptr), + UpgradeDebugInfo(UpgradeDebugInfo), DataLayoutStr(DataLayoutString) { + if (!DataLayoutStr.empty()) + M->setDataLayout(DataLayoutStr); + } + bool Run(); + + bool parseStandaloneConstantValue(Constant *&C, const SlotMapping *Slots); + + bool parseTypeAtBeginning(Type *&Ty, unsigned &Read, + const SlotMapping *Slots); + + LLVMContext &getContext() { return Context; } + + private: + + bool Error(LocTy L, const Twine &Msg) const { + return Lex.Error(L, Msg); + } + bool TokError(const Twine &Msg) const { + return Error(Lex.getLoc(), Msg); + } + + /// Restore the internal name and slot mappings using the mappings that + /// were created at an earlier parsing stage. + void restoreParsingState(const SlotMapping *Slots); + + /// 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, Type *Ty, LocTy Loc, + bool IsCall); + GlobalValue *GetGlobalVal(unsigned ID, Type *Ty, LocTy Loc, bool IsCall); + + /// Get a Comdat with the specified name, creating a forward reference + /// record if needed. + Comdat *getComdat(const std::string &Name, LocTy Loc); + + // Helper Routines. + bool ParseToken(lltok::Kind T, const char *ErrMsg); + bool EatIfPresent(lltok::Kind T) { + if (Lex.getKind() != T) return false; + Lex.Lex(); + return true; + } + + FastMathFlags EatFastMathFlagsIfPresent() { + FastMathFlags FMF; + while (true) + switch (Lex.getKind()) { + case lltok::kw_fast: FMF.setFast(); Lex.Lex(); continue; + case lltok::kw_nnan: FMF.setNoNaNs(); Lex.Lex(); continue; + case lltok::kw_ninf: FMF.setNoInfs(); Lex.Lex(); continue; + case lltok::kw_nsz: FMF.setNoSignedZeros(); Lex.Lex(); continue; + case lltok::kw_arcp: FMF.setAllowReciprocal(); Lex.Lex(); continue; + case lltok::kw_contract: + FMF.setAllowContract(true); + Lex.Lex(); + continue; + case lltok::kw_reassoc: FMF.setAllowReassoc(); Lex.Lex(); continue; + case lltok::kw_afn: FMF.setApproxFunc(); Lex.Lex(); continue; + default: return FMF; + } + return FMF; + } + + bool ParseOptionalToken(lltok::Kind T, bool &Present, + LocTy *Loc = nullptr) { + if (Lex.getKind() != T) { + Present = false; + } else { + if (Loc) + *Loc = Lex.getLoc(); + Lex.Lex(); + Present = true; + } + return false; + } + bool ParseStringConstant(std::string &Result); + bool ParseUInt32(unsigned &Val); + bool ParseUInt32(unsigned &Val, LocTy &Loc) { + Loc = Lex.getLoc(); + return ParseUInt32(Val); + } + bool ParseUInt64(uint64_t &Val); + bool ParseUInt64(uint64_t &Val, LocTy &Loc) { + Loc = Lex.getLoc(); + return ParseUInt64(Val); + } + bool ParseFlag(unsigned &Val); + + bool ParseStringAttribute(AttrBuilder &B); + + bool ParseTLSModel(GlobalVariable::ThreadLocalMode &TLM); + bool ParseOptionalThreadLocal(GlobalVariable::ThreadLocalMode &TLM); + bool ParseOptionalUnnamedAddr(GlobalVariable::UnnamedAddr &UnnamedAddr); + bool ParseOptionalAddrSpace(unsigned &AddrSpace, unsigned DefaultAS = 0); + bool ParseOptionalProgramAddrSpace(unsigned &AddrSpace) { + return ParseOptionalAddrSpace( + AddrSpace, M->getDataLayout().getProgramAddressSpace()); + }; + bool ParseOptionalParamAttrs(AttrBuilder &B); + bool ParseOptionalReturnAttrs(AttrBuilder &B); + bool ParseOptionalLinkage(unsigned &Res, bool &HasLinkage, + unsigned &Visibility, unsigned &DLLStorageClass, + bool &DSOLocal); + void ParseOptionalDSOLocal(bool &DSOLocal); + void ParseOptionalVisibility(unsigned &Res); + void ParseOptionalDLLStorageClass(unsigned &Res); + bool ParseOptionalCallingConv(unsigned &CC); + bool ParseOptionalAlignment(unsigned &Alignment); + bool ParseOptionalDerefAttrBytes(lltok::Kind AttrKind, uint64_t &Bytes); + bool ParseScopeAndOrdering(bool isAtomic, SyncScope::ID &SSID, + AtomicOrdering &Ordering); + bool ParseScope(SyncScope::ID &SSID); + bool ParseOrdering(AtomicOrdering &Ordering); + bool ParseOptionalStackAlignment(unsigned &Alignment); + bool ParseOptionalCommaAlign(unsigned &Alignment, bool &AteExtraComma); + bool ParseOptionalCommaAddrSpace(unsigned &AddrSpace, LocTy &Loc, + bool &AteExtraComma); + bool ParseOptionalCommaInAlloca(bool &IsInAlloca); + bool parseAllocSizeArguments(unsigned &BaseSizeArg, + Optional<unsigned> &HowManyArg); + bool ParseIndexList(SmallVectorImpl<unsigned> &Indices, + bool &AteExtraComma); + bool ParseIndexList(SmallVectorImpl<unsigned> &Indices) { + bool AteExtraComma; + if (ParseIndexList(Indices, AteExtraComma)) return true; + if (AteExtraComma) + return TokError("expected index"); + return false; + } + + // Top-Level Entities + bool ParseTopLevelEntities(); + bool ValidateEndOfModule(); + bool ValidateEndOfIndex(); + bool ParseTargetDefinition(); + bool ParseModuleAsm(); + bool ParseSourceFileName(); + bool ParseDepLibs(); // FIXME: Remove in 4.0. + bool ParseUnnamedType(); + bool ParseNamedType(); + bool ParseDeclare(); + bool ParseDefine(); + + bool ParseGlobalType(bool &IsConstant); + bool ParseUnnamedGlobal(); + bool ParseNamedGlobal(); + bool ParseGlobal(const std::string &Name, LocTy NameLoc, unsigned Linkage, + bool HasLinkage, unsigned Visibility, + unsigned DLLStorageClass, bool DSOLocal, + GlobalVariable::ThreadLocalMode TLM, + GlobalVariable::UnnamedAddr UnnamedAddr); + bool parseIndirectSymbol(const std::string &Name, LocTy NameLoc, + unsigned L, unsigned Visibility, + unsigned DLLStorageClass, bool DSOLocal, + GlobalVariable::ThreadLocalMode TLM, + GlobalVariable::UnnamedAddr UnnamedAddr); + bool parseComdat(); + bool ParseStandaloneMetadata(); + bool ParseNamedMetadata(); + bool ParseMDString(MDString *&Result); + bool ParseMDNodeID(MDNode *&Result); + bool ParseUnnamedAttrGrp(); + bool ParseFnAttributeValuePairs(AttrBuilder &B, + std::vector<unsigned> &FwdRefAttrGrps, + bool inAttrGrp, LocTy &BuiltinLoc); + bool ParseByValWithOptionalType(Type *&Result); + + // Module Summary Index Parsing. + bool SkipModuleSummaryEntry(); + bool ParseSummaryEntry(); + bool ParseModuleEntry(unsigned ID); + bool ParseModuleReference(StringRef &ModulePath); + bool ParseGVReference(ValueInfo &VI, unsigned &GVId); + bool ParseGVEntry(unsigned ID); + bool ParseFunctionSummary(std::string Name, GlobalValue::GUID, unsigned ID); + bool ParseVariableSummary(std::string Name, GlobalValue::GUID, unsigned ID); + bool ParseAliasSummary(std::string Name, GlobalValue::GUID, unsigned ID); + bool ParseGVFlags(GlobalValueSummary::GVFlags &GVFlags); + bool ParseGVarFlags(GlobalVarSummary::GVarFlags &GVarFlags); + bool ParseOptionalFFlags(FunctionSummary::FFlags &FFlags); + bool ParseOptionalCalls(std::vector<FunctionSummary::EdgeTy> &Calls); + bool ParseHotness(CalleeInfo::HotnessType &Hotness); + bool ParseOptionalTypeIdInfo(FunctionSummary::TypeIdInfo &TypeIdInfo); + bool ParseTypeTests(std::vector<GlobalValue::GUID> &TypeTests); + bool ParseVFuncIdList(lltok::Kind Kind, + std::vector<FunctionSummary::VFuncId> &VFuncIdList); + bool ParseConstVCallList( + lltok::Kind Kind, + std::vector<FunctionSummary::ConstVCall> &ConstVCallList); + using IdToIndexMapType = + std::map<unsigned, std::vector<std::pair<unsigned, LocTy>>>; + bool ParseConstVCall(FunctionSummary::ConstVCall &ConstVCall, + IdToIndexMapType &IdToIndexMap, unsigned Index); + bool ParseVFuncId(FunctionSummary::VFuncId &VFuncId, + IdToIndexMapType &IdToIndexMap, unsigned Index); + bool ParseOptionalVTableFuncs(VTableFuncList &VTableFuncs); + bool ParseOptionalRefs(std::vector<ValueInfo> &Refs); + bool ParseTypeIdEntry(unsigned ID); + bool ParseTypeIdSummary(TypeIdSummary &TIS); + bool ParseTypeIdCompatibleVtableEntry(unsigned ID); + bool ParseTypeTestResolution(TypeTestResolution &TTRes); + bool ParseOptionalWpdResolutions( + std::map<uint64_t, WholeProgramDevirtResolution> &WPDResMap); + bool ParseWpdRes(WholeProgramDevirtResolution &WPDRes); + bool ParseOptionalResByArg( + std::map<std::vector<uint64_t>, WholeProgramDevirtResolution::ByArg> + &ResByArg); + bool ParseArgs(std::vector<uint64_t> &Args); + void AddGlobalValueToIndex(std::string Name, GlobalValue::GUID, + GlobalValue::LinkageTypes Linkage, unsigned ID, + std::unique_ptr<GlobalValueSummary> Summary); + + // Type Parsing. + bool ParseType(Type *&Result, const Twine &Msg, bool AllowVoid = false); + bool ParseType(Type *&Result, bool AllowVoid = false) { + return ParseType(Result, "expected type", AllowVoid); + } + bool ParseType(Type *&Result, const Twine &Msg, LocTy &Loc, + bool AllowVoid = false) { + Loc = Lex.getLoc(); + return ParseType(Result, Msg, AllowVoid); + } + bool ParseType(Type *&Result, LocTy &Loc, bool AllowVoid = false) { + Loc = Lex.getLoc(); + return ParseType(Result, AllowVoid); + } + bool ParseAnonStructType(Type *&Result, bool Packed); + bool ParseStructBody(SmallVectorImpl<Type*> &Body); + bool ParseStructDefinition(SMLoc TypeLoc, StringRef Name, + std::pair<Type*, LocTy> &Entry, + Type *&ResultTy); + + bool ParseArrayVectorType(Type *&Result, bool isVector); + bool ParseFunctionType(Type *&Result); + + // Function Semantic Analysis. + class PerFunctionState { + LLParser &P; + Function &F; + std::map<std::string, std::pair<Value*, LocTy> > ForwardRefVals; + std::map<unsigned, std::pair<Value*, LocTy> > ForwardRefValIDs; + std::vector<Value*> 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, int functionNumber); + ~PerFunctionState(); + + Function &getFunction() const { return F; } + + 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, Type *Ty, LocTy Loc, bool IsCall); + Value *GetVal(unsigned ID, Type *Ty, LocTy Loc, bool IsCall); + + /// 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, int NameID, LocTy Loc); + + bool resolveForwardRefBlockAddresses(); + }; + + bool ConvertValIDToValue(Type *Ty, ValID &ID, Value *&V, + PerFunctionState *PFS, bool IsCall); + + Value *checkValidVariableType(LocTy Loc, const Twine &Name, Type *Ty, + Value *Val, bool IsCall); + + bool parseConstantValue(Type *Ty, Constant *&C); + 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); + } + + 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; + Value *V; + AttributeSet Attrs; + ParamInfo(LocTy loc, Value *v, AttributeSet attrs) + : Loc(loc), V(v), Attrs(attrs) {} + }; + bool ParseParameterList(SmallVectorImpl<ParamInfo> &ArgList, + PerFunctionState &PFS, + bool IsMustTailCall = false, + bool InVarArgsFunc = false); + + bool + ParseOptionalOperandBundles(SmallVectorImpl<OperandBundleDef> &BundleList, + PerFunctionState &PFS); + + bool ParseExceptionArgs(SmallVectorImpl<Value *> &Args, + PerFunctionState &PFS); + + // Constant Parsing. + bool ParseValID(ValID &ID, PerFunctionState *PFS = nullptr); + bool ParseGlobalValue(Type *Ty, Constant *&C); + bool ParseGlobalTypeAndValue(Constant *&V); + bool ParseGlobalValueVector(SmallVectorImpl<Constant *> &Elts, + Optional<unsigned> *InRangeOp = nullptr); + bool parseOptionalComdat(StringRef GlobalName, Comdat *&C); + bool ParseMetadataAsValue(Value *&V, PerFunctionState &PFS); + bool ParseValueAsMetadata(Metadata *&MD, const Twine &TypeMsg, + PerFunctionState *PFS); + bool ParseMetadata(Metadata *&MD, PerFunctionState *PFS); + bool ParseMDTuple(MDNode *&MD, bool IsDistinct = false); + bool ParseMDNode(MDNode *&N); + bool ParseMDNodeTail(MDNode *&N); + bool ParseMDNodeVector(SmallVectorImpl<Metadata *> &Elts); + bool ParseMetadataAttachment(unsigned &Kind, MDNode *&MD); + bool ParseInstructionMetadata(Instruction &Inst); + bool ParseGlobalObjectMetadataAttachment(GlobalObject &GO); + bool ParseOptionalFunctionMetadata(Function &F); + + template <class FieldTy> + bool ParseMDField(LocTy Loc, StringRef Name, FieldTy &Result); + template <class FieldTy> bool ParseMDField(StringRef Name, FieldTy &Result); + template <class ParserTy> + bool ParseMDFieldsImplBody(ParserTy parseField); + template <class ParserTy> + bool ParseMDFieldsImpl(ParserTy parseField, LocTy &ClosingLoc); + bool ParseSpecializedMDNode(MDNode *&N, bool IsDistinct = false); + +#define HANDLE_SPECIALIZED_MDNODE_LEAF(CLASS) \ + bool Parse##CLASS(MDNode *&Result, bool IsDistinct); +#include "llvm/IR/Metadata.def" + + // Function Parsing. + struct ArgInfo { + LocTy Loc; + Type *Ty; + AttributeSet Attrs; + std::string Name; + ArgInfo(LocTy L, Type *ty, AttributeSet Attr, const std::string &N) + : Loc(L), Ty(ty), Attrs(Attr), Name(N) {} + }; + bool ParseArgumentList(SmallVectorImpl<ArgInfo> &ArgList, bool &isVarArg); + bool ParseFunctionHeader(Function *&Fn, bool isDefine); + bool ParseFunctionBody(Function &Fn); + bool ParseBasicBlock(PerFunctionState &PFS); + + enum TailCallType { TCT_None, TCT_Tail, TCT_MustTail }; + + // 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 &P, 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 ParseResume(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCleanupRet(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCatchRet(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCatchSwitch(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCatchPad(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCleanupPad(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCallBr(Instruction *&Inst, PerFunctionState &PFS); + + bool ParseUnaryOp(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc, + bool IsFP); + bool ParseArithmetic(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc, + bool IsFP); + bool ParseLogical(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc); + bool ParseCompare(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc); + bool ParseCast(Instruction *&Inst, PerFunctionState &PFS, unsigned Opc); + bool ParseSelect(Instruction *&Inst, PerFunctionState &PFS); + bool ParseVA_Arg(Instruction *&Inst, PerFunctionState &PFS); + bool ParseExtractElement(Instruction *&Inst, PerFunctionState &PFS); + bool ParseInsertElement(Instruction *&Inst, PerFunctionState &PFS); + bool ParseShuffleVector(Instruction *&Inst, PerFunctionState &PFS); + int ParsePHI(Instruction *&Inst, PerFunctionState &PFS); + bool ParseLandingPad(Instruction *&Inst, PerFunctionState &PFS); + bool ParseCall(Instruction *&Inst, PerFunctionState &PFS, + CallInst::TailCallKind TCK); + int ParseAlloc(Instruction *&Inst, PerFunctionState &PFS); + int ParseLoad(Instruction *&Inst, PerFunctionState &PFS); + int ParseStore(Instruction *&Inst, PerFunctionState &PFS); + int ParseCmpXchg(Instruction *&Inst, PerFunctionState &PFS); + int ParseAtomicRMW(Instruction *&Inst, PerFunctionState &PFS); + int ParseFence(Instruction *&Inst, PerFunctionState &PFS); + int ParseGetElementPtr(Instruction *&Inst, PerFunctionState &PFS); + int ParseExtractValue(Instruction *&Inst, PerFunctionState &PFS); + int ParseInsertValue(Instruction *&Inst, PerFunctionState &PFS); + + // Use-list order directives. + bool ParseUseListOrder(PerFunctionState *PFS = nullptr); + bool ParseUseListOrderBB(); + bool ParseUseListOrderIndexes(SmallVectorImpl<unsigned> &Indexes); + bool sortUseListOrder(Value *V, ArrayRef<unsigned> Indexes, SMLoc Loc); + }; +} // End llvm namespace + +#endif |