X-Git-Url: http://plrg.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FMachineModuleInfo.h;h=b51020654af558267e05629114433a44597d5f36;hb=eb3d76da81e2148ed7c577594c873ba147f4f435;hp=d446eaeb7f49e9651d3df9345a375d623758b596;hpb=999aee24c7b7511575146b9950bb85830fab0378;p=oota-llvm.git diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h index d446eaeb7f4..b51020654af 100644 --- a/include/llvm/CodeGen/MachineModuleInfo.h +++ b/include/llvm/CodeGen/MachineModuleInfo.h @@ -31,18 +31,18 @@ #ifndef LLVM_CODEGEN_MACHINEMODULEINFO_H #define LLVM_CODEGEN_MACHINEMODULEINFO_H -#include "llvm/Pass.h" -#include "llvm/GlobalValue.h" -#include "llvm/Metadata.h" -#include "llvm/CodeGen/MachineLocation.h" -#include "llvm/MC/MCContext.h" -#include "llvm/Support/Dwarf.h" -#include "llvm/Support/ValueHandle.h" -#include "llvm/System/DataTypes.h" #include "llvm/ADT/DenseMap.h" #include "llvm/ADT/PointerIntPair.h" #include "llvm/ADT/SmallPtrSet.h" #include "llvm/ADT/SmallVector.h" +#include "llvm/IR/Metadata.h" +#include "llvm/IR/ValueHandle.h" +#include "llvm/MC/MCContext.h" +#include "llvm/MC/MachineLocation.h" +#include "llvm/Pass.h" +#include "llvm/Support/DataTypes.h" +#include "llvm/Support/DebugLoc.h" +#include "llvm/Support/Dwarf.h" namespace llvm { @@ -51,26 +51,12 @@ namespace llvm { class Constant; class GlobalVariable; class MDNode; +class MMIAddrLabelMap; class MachineBasicBlock; class MachineFunction; class Module; class PointerType; class StructType; - -/// MachineModuleInfoImpl - This class can be derived from and used by targets -/// to hold private target-specific information for each Module. Objects of -/// type are accessed/created with MMI::getInfo and destroyed when the -/// MachineModuleInfo is destroyed. -class MachineModuleInfoImpl { -public: - typedef PointerIntPair StubValueTy; - virtual ~MachineModuleInfoImpl(); - typedef std::vector > SymbolListTy; -protected: - static SymbolListTy GetSortedStubs(const DenseMap&); -}; - - //===----------------------------------------------------------------------===// /// LandingPadInfo - This structure is used to retain landing pad info for @@ -81,100 +67,132 @@ struct LandingPadInfo { SmallVector BeginLabels; // Labels prior to invoke. SmallVector EndLabels; // Labels after invoke. MCSymbol *LandingPadLabel; // Label at beginning of landing pad. - Function *Personality; // Personality function. + const Function *Personality; // Personality function. std::vector TypeIds; // List of type ids (filters negative) explicit LandingPadInfo(MachineBasicBlock *MBB) : LandingPadBlock(MBB), LandingPadLabel(0), Personality(0) {} }; -class MMIAddrLabelMap; - +//===----------------------------------------------------------------------===// +/// MachineModuleInfoImpl - This class can be derived from and used by targets +/// to hold private target-specific information for each Module. Objects of +/// type are accessed/created with MMI::getInfo and destroyed when the +/// MachineModuleInfo is destroyed. +/// +class MachineModuleInfoImpl { +public: + typedef PointerIntPair StubValueTy; + virtual ~MachineModuleInfoImpl(); + typedef std::vector > SymbolListTy; +protected: + static SymbolListTy GetSortedStubs(const DenseMap&); +}; + //===----------------------------------------------------------------------===// /// MachineModuleInfo - This class contains meta information specific to a -/// module. Queries can be made by different debugging and exception handling +/// module. Queries can be made by different debugging and exception handling /// schemes and reformated for specific use. /// class MachineModuleInfo : public ImmutablePass { /// Context - This is the MCContext used for the entire code generator. MCContext Context; - + + /// TheModule - This is the LLVM Module being worked on. + const Module *TheModule; + /// ObjFileMMI - This is the object-file-format-specific implementation of /// MachineModuleInfoImpl, which lets targets accumulate whatever info they /// want. MachineModuleInfoImpl *ObjFileMMI; - // FrameMoves - List of moves done by a function's prolog. Used to construct - // frame maps by debug and exception handling consumers. - std::vector FrameMoves; - - // LandingPads - List of LandingPadInfo describing the landing pad information - // in the current function. + /// List of moves done by a function's prolog. Used to construct frame maps + /// by debug and exception handling consumers. + std::vector FrameInstructions; + + /// CompactUnwindEncoding - If the target supports it, this is the compact + /// unwind encoding. It replaces a function's CIE and FDE. + uint32_t CompactUnwindEncoding; + + /// LandingPads - List of LandingPadInfo describing the landing pad + /// information in the current function. std::vector LandingPads; - // Map of invoke call site index values to associated begin EH_LABEL for - // the current function. + /// LPadToCallSiteMap - Map a landing pad's EH symbol to the call site + /// indexes. + DenseMap > LPadToCallSiteMap; + + /// CallSiteMap - Map of invoke call site index values to associated begin + /// EH_LABEL for the current function. DenseMap CallSiteMap; - // The current call site index being processed, if any. 0 if none. + /// CurCallSite - The current call site index being processed, if any. 0 if + /// none. unsigned CurCallSite; - // TypeInfos - List of C++ TypeInfo used in the current function. - // - std::vector TypeInfos; + /// TypeInfos - List of C++ TypeInfo used in the current function. + std::vector TypeInfos; - // FilterIds - List of typeids encoding filters used in the current function. - // + /// FilterIds - List of typeids encoding filters used in the current function. std::vector FilterIds; - // FilterEnds - List of the indices in FilterIds corresponding to filter - // terminators. - // + /// FilterEnds - List of the indices in FilterIds corresponding to filter + /// terminators. std::vector FilterEnds; - // Personalities - Vector of all personality functions ever seen. Used to emit - // common EH frames. - std::vector Personalities; + /// Personalities - Vector of all personality functions ever seen. Used to + /// emit common EH frames. + std::vector Personalities; /// UsedFunctions - The functions in the @llvm.used list in a more easily /// searchable format. This does not include the functions in /// llvm.compiler.used. SmallPtrSet UsedFunctions; - /// AddrLabelSymbols - This map keeps track of which symbol is being used for /// the specified basic block's address of label. MMIAddrLabelMap *AddrLabelSymbols; - + bool CallsEHReturn; bool CallsUnwindInit; - + /// DbgInfoAvailable - True if debugging information is available /// in this module. bool DbgInfoAvailable; + /// UsesVAFloatArgument - True if this module calls VarArg function with + /// floating-point arguments. This is used to emit an undefined reference + /// to _fltused on Windows targets. + bool UsesVAFloatArgument; + public: static char ID; // Pass identification, replacement for typeid - typedef std::pair > UnsignedAndMDNodePair; - typedef SmallVector< std::pair, UnsignedAndMDNodePair>, 4> + typedef std::pair UnsignedDebugLocPair; + typedef SmallVector, UnsignedDebugLocPair>, 4> VariableDbgInfoMapTy; VariableDbgInfoMapTy VariableDbgInfo; MachineModuleInfo(); // DUMMY CONSTRUCTOR, DO NOT CALL. - MachineModuleInfo(const MCAsmInfo &MAI); // Real constructor. + // Real constructor. + MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI, + const MCObjectFileInfo *MOFI); ~MachineModuleInfo(); - - bool doInitialization(); - bool doFinalization(); + + // Initialization and Finalization + virtual bool doInitialization(Module &); + virtual bool doFinalization(Module &); /// EndFunction - Discard function meta information. /// void EndFunction(); - + const MCContext &getContext() const { return Context; } MCContext &getContext() { return Context; } + void setModule(const Module *M) { TheModule = M; } + const Module *getModule() const { return TheModule; } + /// getInfo - Keep track of various per-function pieces of information for /// backends that would like to do so. /// @@ -184,32 +202,55 @@ public: ObjFileMMI = new Ty(*this); return *static_cast(ObjFileMMI); } - + template const Ty &getObjFileInfo() const { return const_cast(this)->getObjFileInfo(); } - + /// AnalyzeModule - Scan the module for global debug information. /// - void AnalyzeModule(Module &M); - + void AnalyzeModule(const Module &M); + /// hasDebugInfo - Returns true if valid debug info is present. /// bool hasDebugInfo() const { return DbgInfoAvailable; } - void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = true; } + void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; } bool callsEHReturn() const { return CallsEHReturn; } void setCallsEHReturn(bool b) { CallsEHReturn = b; } bool callsUnwindInit() const { return CallsUnwindInit; } void setCallsUnwindInit(bool b) { CallsUnwindInit = b; } - - /// getFrameMoves - Returns a reference to a list of moves done in the current + + bool usesVAFloatArgument() const { + return UsesVAFloatArgument; + } + + void setUsesVAFloatArgument(bool b) { + UsesVAFloatArgument = b; + } + + /// \brief Returns a reference to a list of cfi instructions in the current /// function's prologue. Used to construct frame maps for debug and exception /// handling comsumers. - std::vector &getFrameMoves() { return FrameMoves; } - + const std::vector &getFrameInstructions() const { + return FrameInstructions; + } + + void addFrameInst(const MCCFIInstruction &Inst) { + FrameInstructions.push_back(Inst); + } + + /// getCompactUnwindEncoding - Returns the compact unwind encoding for a + /// function if the target supports the encoding. This encoding replaces a + /// function's CIE and FDE. + uint32_t getCompactUnwindEncoding() const { return CompactUnwindEncoding; } + + /// setCompactUnwindEncoding - Set the compact unwind encoding for a function + /// if the target supports the encoding. + void setCompactUnwindEncoding(uint32_t Enc) { CompactUnwindEncoding = Enc; } + /// getAddrLabelSymbol - Return the symbol to be used for the specified basic /// block when its address is taken. This cannot be its normal LBB label /// because the block may be accessed outside its containing function. @@ -219,15 +260,15 @@ public: /// basic block when its address is taken. If other blocks were RAUW'd to /// this one, we may have to emit them as well, return the whole set. std::vector getAddrLabelSymbolToEmit(const BasicBlock *BB); - + /// takeDeletedSymbolsForFunction - If the specified function has had any /// references to address-taken blocks generated, but the block got deleted, /// return the symbol now so we can emit it. This prevents emitting a /// reference to a symbol that has no definition. - void takeDeletedSymbolsForFunction(const Function *F, + void takeDeletedSymbolsForFunction(const Function *F, std::vector &Result); - + //===- EH ---------------------------------------------------------------===// /// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the @@ -238,48 +279,49 @@ public: /// associate it with a try landing pad block. void addInvoke(MachineBasicBlock *LandingPad, MCSymbol *BeginLabel, MCSymbol *EndLabel); - - /// addLandingPad - Add a new panding pad. Returns the label ID for the + + /// addLandingPad - Add a new panding pad. Returns the label ID for the /// landing pad entry. MCSymbol *addLandingPad(MachineBasicBlock *LandingPad); - + /// addPersonality - Provide the personality function for the exception /// information. - void addPersonality(MachineBasicBlock *LandingPad, Function *Personality); + void addPersonality(MachineBasicBlock *LandingPad, + const Function *Personality); /// getPersonalityIndex - Get index of the current personality function inside /// Personalitites array unsigned getPersonalityIndex() const; /// getPersonalities - Return array of personality functions ever seen. - const std::vector& getPersonalities() const { + const std::vector& getPersonalities() const { return Personalities; } /// isUsedFunction - Return true if the functions in the llvm.used list. This /// does not return true for things in llvm.compiler.used unless they are also /// in llvm.used. - bool isUsedFunction(const Function *F) { + bool isUsedFunction(const Function *F) const { return UsedFunctions.count(F); } /// addCatchTypeInfo - Provide the catch typeinfo for a landing pad. /// void addCatchTypeInfo(MachineBasicBlock *LandingPad, - std::vector &TyInfo); + ArrayRef TyInfo); /// addFilterTypeInfo - Provide the filter typeinfo for a landing pad. /// void addFilterTypeInfo(MachineBasicBlock *LandingPad, - std::vector &TyInfo); + ArrayRef TyInfo); /// addCleanup - Add a cleanup action for a landing pad. /// void addCleanup(MachineBasicBlock *LandingPad); - /// getTypeIDFor - Return the type id for the specified typeinfo. This is + /// getTypeIDFor - Return the type id for the specified typeinfo. This is /// function wide. - unsigned getTypeIDFor(GlobalVariable *TI); + unsigned getTypeIDFor(const GlobalVariable *TI); /// getFilterIDFor - Return the id of the filter encoded by TyIds. This is /// function wide. @@ -287,36 +329,60 @@ public: /// TidyLandingPads - Remap landing pad labels and remove any deleted landing /// pads. - void TidyLandingPads(); - + void TidyLandingPads(DenseMap *LPMap = 0); + /// getLandingPads - Return a reference to the landing pad info for the /// current function. const std::vector &getLandingPads() const { return LandingPads; } - /// setCallSiteBeginLabel - Map the begin label for a call site + /// setCallSiteLandingPad - Map the landing pad's EH symbol to the call + /// site indexes. + void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef Sites); + + /// getCallSiteLandingPad - Get the call site indexes for a landing pad EH + /// symbol. + SmallVectorImpl &getCallSiteLandingPad(MCSymbol *Sym) { + assert(hasCallSiteLandingPad(Sym) && + "missing call site number for landing pad!"); + return LPadToCallSiteMap[Sym]; + } + + /// hasCallSiteLandingPad - Return true if the landing pad Eh symbol has an + /// associated call site. + bool hasCallSiteLandingPad(MCSymbol *Sym) { + return !LPadToCallSiteMap[Sym].empty(); + } + + /// setCallSiteBeginLabel - Map the begin label for a call site. void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) { CallSiteMap[BeginLabel] = Site; } - /// getCallSiteBeginLabel - Get the call site number for a begin label + /// getCallSiteBeginLabel - Get the call site number for a begin label. unsigned getCallSiteBeginLabel(MCSymbol *BeginLabel) { - assert(CallSiteMap.count(BeginLabel) && + assert(hasCallSiteBeginLabel(BeginLabel) && "Missing call site number for EH_LABEL!"); return CallSiteMap[BeginLabel]; } + /// hasCallSiteBeginLabel - Return true if the begin label has a call site + /// number associated with it. + bool hasCallSiteBeginLabel(MCSymbol *BeginLabel) { + return CallSiteMap[BeginLabel] != 0; + } + /// setCurrentCallSite - Set the call site currently being processed. void setCurrentCallSite(unsigned Site) { CurCallSite = Site; } /// getCurrentCallSite - Get the call site currently being processed, if any. /// return zero if none. - unsigned getCurrentCallSite(void) { return CurCallSite; } + unsigned getCurrentCallSite() { return CurCallSite; } /// getTypeInfos - Return a reference to the C++ typeinfo for the current /// function. - const std::vector &getTypeInfos() const { + const std::vector &getTypeInfos() const { return TypeInfos; } @@ -328,15 +394,15 @@ public: /// getPersonality - Return a personality function if available. The presence /// of one is required to emit exception handling info. - Function *getPersonality() const; + const Function *getPersonality() const; - /// setVariableDbgInfo - Collect information used to emit debugging information - /// of a variable. - void setVariableDbgInfo(MDNode *N, unsigned Slot, MDNode *Scope) { - VariableDbgInfo.push_back(std::make_pair(N, std::make_pair(Slot, Scope))); + /// setVariableDbgInfo - Collect information used to emit debugging + /// information of a variable. + void setVariableDbgInfo(MDNode *N, unsigned Slot, DebugLoc Loc) { + VariableDbgInfo.push_back(std::make_pair(N, std::make_pair(Slot, Loc))); } - VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfo; } + VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfo; } }; // End class MachineModuleInfo