X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FCodeGen%2FMachineModuleInfo.h;h=f80c998a9f78742394e779c0d44e85b816363eff;hb=32439e7d8822d0d62b3954cc3afe91e5b826db8a;hp=28f4544137165f411adafe3aef8fd4c7931d37f2;hpb=1ceef0ef50118a1a89f8752f7461fc759d84ce1c;p=oota-llvm.git diff --git a/include/llvm/CodeGen/MachineModuleInfo.h b/include/llvm/CodeGen/MachineModuleInfo.h index 28f45441371..f80c998a9f7 100644 --- a/include/llvm/CodeGen/MachineModuleInfo.h +++ b/include/llvm/CodeGen/MachineModuleInfo.h @@ -35,6 +35,7 @@ #include "llvm/ADT/PointerIntPair.h" #include "llvm/ADT/SmallPtrSet.h" #include "llvm/ADT/SmallVector.h" +#include "llvm/Analysis/LibCallSemantics.h" #include "llvm/IR/DebugLoc.h" #include "llvm/IR/Metadata.h" #include "llvm/IR/ValueHandle.h" @@ -57,21 +58,25 @@ class MachineFunction; class Module; class PointerType; class StructType; +struct WinEHFuncInfo; //===----------------------------------------------------------------------===// /// LandingPadInfo - This structure is used to retain landing pad info for /// the current function. /// struct LandingPadInfo { - MachineBasicBlock *LandingPadBlock; // Landing pad block. - SmallVector BeginLabels; // Labels prior to invoke. - SmallVector EndLabels; // Labels after invoke. - MCSymbol *LandingPadLabel; // Label at beginning of landing pad. - const Function *Personality; // Personality function. - std::vector TypeIds; // List of type ids (filters negative) + MachineBasicBlock *LandingPadBlock; // Landing pad block. + SmallVector BeginLabels; // Labels prior to invoke. + SmallVector EndLabels; // Labels after invoke. + SmallVector ClauseLabels; // Labels for each clause. + MCSymbol *LandingPadLabel; // Label at beginning of landing pad. + const Function *Personality; // Personality function. + std::vector TypeIds; // List of type ids (filters negative). + int WinEHState; // WinEH specific state number. explicit LandingPadInfo(MachineBasicBlock *MBB) - : LandingPadBlock(MBB), LandingPadLabel(0), Personality(0) {} + : LandingPadBlock(MBB), LandingPadLabel(nullptr), Personality(nullptr), + WinEHState(-1) {} }; //===----------------------------------------------------------------------===// @@ -86,7 +91,10 @@ public: virtual ~MachineModuleInfoImpl(); typedef std::vector > SymbolListTy; protected: - static SymbolListTy GetSortedStubs(const DenseMap&); + + /// Return the entries from a DenseMap in a deterministic sorted orer. + /// Clears the map. + static SymbolListTy getSortedStubs(DenseMap&); }; //===----------------------------------------------------------------------===// @@ -110,10 +118,6 @@ class MachineModuleInfo : public ImmutablePass { /// 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; @@ -131,7 +135,7 @@ class MachineModuleInfo : public ImmutablePass { unsigned CurCallSite; /// TypeInfos - List of C++ TypeInfo used in the current function. - std::vector TypeInfos; + std::vector TypeInfos; /// FilterIds - List of typeids encoding filters used in the current function. std::vector FilterIds; @@ -165,13 +169,28 @@ class MachineModuleInfo : public ImmutablePass { /// to _fltused on Windows targets. bool UsesVAFloatArgument; + /// UsesMorestackAddr - True if the module calls the __morestack function + /// indirectly, as is required under the large code model on x86. This is used + /// to emit a definition of a symbol, __morestack_addr, containing the + /// address. See comments in lib/Target/X86/X86FrameLowering.cpp for more + /// details. + bool UsesMorestackAddr; + + EHPersonality PersonalityTypeCache; + + DenseMap> FuncInfoMap; + public: static char ID; // Pass identification, replacement for typeid struct VariableDbgInfo { - TrackingVH Var; + TrackingMDNodeRef Var; + TrackingMDNodeRef Expr; unsigned Slot; DebugLoc Loc; + + VariableDbgInfo(MDNode *Var, MDNode *Expr, unsigned Slot, DebugLoc Loc) + : Var(Var), Expr(Expr), Slot(Slot), Loc(Loc) {} }; typedef SmallVector VariableDbgInfoMapTy; VariableDbgInfoMapTy VariableDbgInfos; @@ -180,7 +199,7 @@ public: // Real constructor. MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI, const MCObjectFileInfo *MOFI); - ~MachineModuleInfo(); + ~MachineModuleInfo() override; // Initialization and Finalization bool doInitialization(Module &) override; @@ -196,12 +215,18 @@ public: void setModule(const Module *M) { TheModule = M; } const Module *getModule() const { return TheModule; } + const Function *getWinEHParent(const Function *F) const; + WinEHFuncInfo &getWinEHFuncInfo(const Function *F); + bool hasWinEHFuncInfo(const Function *F) const { + return FuncInfoMap.count(getWinEHParent(F)) > 0; + } + /// getInfo - Keep track of various per-function pieces of information for /// backends that would like to do so. /// template Ty &getObjFileInfo() { - if (ObjFileMMI == 0) + if (ObjFileMMI == nullptr) ObjFileMMI = new Ty(*this); return *static_cast(ObjFileMMI); } @@ -234,6 +259,14 @@ public: UsesVAFloatArgument = b; } + bool usesMorestackAddr() const { + return UsesMorestackAddr; + } + + void setUsesMorestackAddr(bool b) { + UsesMorestackAddr = 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. @@ -247,15 +280,6 @@ public: return FrameInstructions.size() - 1; } - /// 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. @@ -294,6 +318,8 @@ public: void addPersonality(MachineBasicBlock *LandingPad, const Function *Personality); + void addWinEHState(MachineBasicBlock *LandingPad, int State); + /// getPersonalityIndex - Get index of the current personality function inside /// Personalitites array unsigned getPersonalityIndex() const; @@ -313,20 +339,25 @@ public: /// addCatchTypeInfo - Provide the catch typeinfo for a landing pad. /// void addCatchTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef TyInfo); + ArrayRef TyInfo); /// addFilterTypeInfo - Provide the filter typeinfo for a landing pad. /// void addFilterTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef TyInfo); + ArrayRef TyInfo); /// addCleanup - Add a cleanup action for a landing pad. /// void addCleanup(MachineBasicBlock *LandingPad); + /// Add a clause for a landing pad. Returns a new label for the clause. This + /// is used by EH schemes that have more than one landing pad. In this case, + /// each clause gets its own basic block. + MCSymbol *addClauseForLandingPad(MachineBasicBlock *LandingPad); + /// getTypeIDFor - Return the type id for the specified typeinfo. This is /// function wide. - unsigned getTypeIDFor(const GlobalVariable *TI); + unsigned getTypeIDFor(const GlobalValue *TI); /// getFilterIDFor - Return the id of the filter encoded by TyIds. This is /// function wide. @@ -334,7 +365,7 @@ public: /// TidyLandingPads - Remap landing pad labels and remove any deleted landing /// pads. - void TidyLandingPads(DenseMap *LPMap = 0); + void TidyLandingPads(DenseMap *LPMap = nullptr); /// getLandingPads - Return a reference to the landing pad info for the /// current function. @@ -387,7 +418,7 @@ public: /// getTypeInfos - Return a reference to the C++ typeinfo for the current /// function. - const std::vector &getTypeInfos() const { + const std::vector &getTypeInfos() const { return TypeInfos; } @@ -401,11 +432,14 @@ public: /// of one is required to emit exception handling info. const Function *getPersonality() const; + /// Classify the personality function amongst known EH styles. + EHPersonality getPersonalityType(); + /// setVariableDbgInfo - Collect information used to emit debugging /// information of a variable. - void setVariableDbgInfo(MDNode *N, unsigned Slot, DebugLoc Loc) { - VariableDbgInfo Info = { N, Slot, Loc }; - VariableDbgInfos.push_back(std::move(Info)); + void setVariableDbgInfo(MDNode *Var, MDNode *Expr, unsigned Slot, + DebugLoc Loc) { + VariableDbgInfos.emplace_back(Var, Expr, Slot, Loc); } VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfos; }