X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=lib%2FCodeGen%2FMachineModuleInfo.cpp;h=2352692aca559cb15e9fa444c9a194b5d119d86d;hp=a7bd0f7e9a2bcdf51e5ed3c9f4ddb2003d4b7e1f;hb=d9b72fea112333a8998f1185d454eae1496523bd;hpb=5e25ee8a1fcf8288d00d731b0f7ab7976f33b123 diff --git a/lib/CodeGen/MachineModuleInfo.cpp b/lib/CodeGen/MachineModuleInfo.cpp index a7bd0f7e9a2..2352692aca5 100644 --- a/lib/CodeGen/MachineModuleInfo.cpp +++ b/lib/CodeGen/MachineModuleInfo.cpp @@ -8,24 +8,25 @@ //===----------------------------------------------------------------------===// #include "llvm/CodeGen/MachineModuleInfo.h" - -#include "llvm/Constants.h" -#include "llvm/DerivedTypes.h" -#include "llvm/GlobalVariable.h" -#include "llvm/Module.h" +#include "llvm/ADT/PointerUnion.h" +#include "llvm/Analysis/LibCallSemantics.h" #include "llvm/Analysis/ValueTracking.h" -#include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/MachineFunction.h" +#include "llvm/CodeGen/MachineFunctionPass.h" #include "llvm/CodeGen/Passes.h" +#include "llvm/CodeGen/WinEHFuncInfo.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DerivedTypes.h" +#include "llvm/IR/GlobalVariable.h" +#include "llvm/IR/Module.h" #include "llvm/MC/MCObjectFileInfo.h" #include "llvm/MC/MCSymbol.h" -#include "llvm/ADT/PointerUnion.h" #include "llvm/Support/Dwarf.h" #include "llvm/Support/ErrorHandling.h" using namespace llvm; using namespace llvm::dwarf; -// Handle the Pass registration stuff necessary to use TargetData's. +// Handle the Pass registration stuff necessary to use DataLayout's. INITIALIZE_PASS(MachineModuleInfo, "machinemoduleinfo", "Machine Module Information", false, false) char MachineModuleInfo::ID = 0; @@ -37,8 +38,8 @@ namespace llvm { class MMIAddrLabelMapCallbackPtr : CallbackVH { MMIAddrLabelMap *Map; public: - MMIAddrLabelMapCallbackPtr() : Map(0) {} - MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(0) {} + MMIAddrLabelMapCallbackPtr() : Map(nullptr) {} + MMIAddrLabelMapCallbackPtr(Value *V) : CallbackVH(V), Map(nullptr) {} void setPtr(BasicBlock *BB) { ValueHandleBase::operator=(BB); @@ -46,8 +47,8 @@ public: void setMap(MMIAddrLabelMap *map) { Map = map; } - virtual void deleted(); - virtual void allUsesReplacedWith(Value *V2); + void deleted() override; + void allUsesReplacedWith(Value *V2) override; }; class MMIAddrLabelMap { @@ -164,9 +165,9 @@ void MMIAddrLabelMap::UpdateForDeletedBlock(BasicBlock *BB) { AddrLabelSymEntry Entry = AddrLabelSymbols[BB]; AddrLabelSymbols.erase(BB); assert(!Entry.Symbols.isNull() && "Didn't have a symbol, why a callback?"); - BBCallbacks[Entry.Index] = 0; // Clear the callback. + BBCallbacks[Entry.Index] = nullptr; // Clear the callback. - assert((BB->getParent() == 0 || BB->getParent() == Entry.Fn) && + assert((BB->getParent() == nullptr || BB->getParent() == Entry.Fn) && "Block/parent mismatch"); // Handle both the single and the multiple symbols cases. @@ -214,7 +215,7 @@ void MMIAddrLabelMap::UpdateForRAUWBlock(BasicBlock *Old, BasicBlock *New) { return; } - BBCallbacks[OldEntry.Index] = 0; // Update the callback. + BBCallbacks[OldEntry.Index] = nullptr; // Update the callback. // Otherwise, we need to add the old symbol to the new block's set. If it is // just a single entry, upgrade it to a symbol list. @@ -254,46 +255,48 @@ void MMIAddrLabelMapCallbackPtr::allUsesReplacedWith(Value *V2) { MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI, const MCObjectFileInfo *MOFI) - : ImmutablePass(ID), Context(MAI, MRI, MOFI), - ObjFileMMI(0), CompactUnwindEncoding(0), CurCallSite(0), CallsEHReturn(0), - CallsUnwindInit(0), DbgInfoAvailable(false), - CallsExternalVAFunctionWithFloatingPointArguments(false) { + : ImmutablePass(ID), Context(&MAI, &MRI, MOFI, nullptr, false) { initializeMachineModuleInfoPass(*PassRegistry::getPassRegistry()); - // Always emit some info, by default "no personality" info. - Personalities.push_back(NULL); - AddrLabelSymbols = 0; - TheModule = 0; } MachineModuleInfo::MachineModuleInfo() - : ImmutablePass(ID), - Context(*(MCAsmInfo*)0, *(MCRegisterInfo*)0, (MCObjectFileInfo*)0) { + : ImmutablePass(ID), Context(nullptr, nullptr, nullptr) { llvm_unreachable("This MachineModuleInfo constructor should never be called, " "MMI should always be explicitly constructed by " "LLVMTargetMachine"); } MachineModuleInfo::~MachineModuleInfo() { - delete ObjFileMMI; - - // FIXME: Why isn't doFinalization being called?? - //assert(AddrLabelSymbols == 0 && "doFinalization not called"); - delete AddrLabelSymbols; - AddrLabelSymbols = 0; } -/// doInitialization - Initialize the state for a new module. -/// -bool MachineModuleInfo::doInitialization() { - assert(AddrLabelSymbols == 0 && "Improperly initialized"); +bool MachineModuleInfo::doInitialization(Module &M) { + + ObjFileMMI = nullptr; + CurCallSite = 0; + CallsEHReturn = 0; + CallsUnwindInit = 0; + DbgInfoAvailable = UsesVAFloatArgument = UsesMorestackAddr = false; + // Always emit some info, by default "no personality" info. + Personalities.push_back(nullptr); + PersonalityTypeCache = EHPersonality::Unknown; + AddrLabelSymbols = nullptr; + TheModule = nullptr; + return false; } -/// doFinalization - Tear down the state after completion of a module. -/// -bool MachineModuleInfo::doFinalization() { +bool MachineModuleInfo::doFinalization(Module &M) { + + Personalities.clear(); + delete AddrLabelSymbols; - AddrLabelSymbols = 0; + AddrLabelSymbols = nullptr; + + Context.reset(); + + delete ObjFileMMI; + ObjFileMMI = nullptr; + return false; } @@ -301,7 +304,7 @@ bool MachineModuleInfo::doFinalization() { /// void MachineModuleInfo::EndFunction() { // Clean up frame info. - FrameMoves.clear(); + FrameInstructions.clear(); // Clean up exception info. LandingPads.clear(); @@ -311,8 +314,7 @@ void MachineModuleInfo::EndFunction() { FilterEnds.clear(); CallsEHReturn = 0; CallsUnwindInit = 0; - CompactUnwindEncoding = 0; - VariableDbgInfo.clear(); + VariableDbgInfos.clear(); } /// AnalyzeModule - Scan the module for global debug information. @@ -324,8 +326,7 @@ void MachineModuleInfo::AnalyzeModule(const Module &M) { if (!GV || !GV->hasInitializer()) return; // Should be an array of 'i8*'. - const ConstantArray *InitList = dyn_cast(GV->getInitializer()); - if (InitList == 0) return; + const ConstantArray *InitList = cast(GV->getInitializer()); for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i) if (const Function *F = @@ -341,7 +342,7 @@ void MachineModuleInfo::AnalyzeModule(const Module &M) { /// because the block may be accessed outside its containing function. MCSymbol *MachineModuleInfo::getAddrLabelSymbol(const BasicBlock *BB) { // Lazily create AddrLabelSymbols. - if (AddrLabelSymbols == 0) + if (!AddrLabelSymbols) AddrLabelSymbols = new MMIAddrLabelMap(Context); return AddrLabelSymbols->getAddrLabelSymbol(const_cast(BB)); } @@ -352,7 +353,7 @@ MCSymbol *MachineModuleInfo::getAddrLabelSymbol(const BasicBlock *BB) { std::vector MachineModuleInfo:: getAddrLabelSymbolToEmit(const BasicBlock *BB) { // Lazily create AddrLabelSymbols. - if (AddrLabelSymbols == 0) + if (!AddrLabelSymbols) AddrLabelSymbols = new MMIAddrLabelMap(Context); return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast(BB)); } @@ -366,7 +367,7 @@ void MachineModuleInfo:: takeDeletedSymbolsForFunction(const Function *F, std::vector &Result) { // If no blocks have had their addresses taken, we're done. - if (AddrLabelSymbols == 0) return; + if (!AddrLabelSymbols) return; return AddrLabelSymbols-> takeDeletedSymbolsForFunction(const_cast(F), Result); } @@ -419,17 +420,23 @@ void MachineModuleInfo::addPersonality(MachineBasicBlock *LandingPad, // If this is the first personality we're adding go // ahead and add it at the beginning. - if (Personalities[0] == NULL) + if (!Personalities[0]) Personalities[0] = Personality; else Personalities.push_back(Personality); } +void MachineModuleInfo::addWinEHState(MachineBasicBlock *LandingPad, + int State) { + LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); + LP.WinEHState = State; +} + /// addCatchTypeInfo - Provide the catch typeinfo for a landing pad. /// void MachineModuleInfo:: addCatchTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef TyInfo) { + ArrayRef TyInfo) { LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); for (unsigned N = TyInfo.size(); N; --N) LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1])); @@ -439,7 +446,7 @@ addCatchTypeInfo(MachineBasicBlock *LandingPad, /// void MachineModuleInfo:: addFilterTypeInfo(MachineBasicBlock *LandingPad, - ArrayRef TyInfo) { + ArrayRef TyInfo) { LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); std::vector IdsInFilter(TyInfo.size()); for (unsigned I = 0, E = TyInfo.size(); I != E; ++I) @@ -454,6 +461,25 @@ void MachineModuleInfo::addCleanup(MachineBasicBlock *LandingPad) { LP.TypeIds.push_back(0); } +void MachineModuleInfo::addSEHCatchHandler(MachineBasicBlock *LandingPad, + const Function *Filter, + const BlockAddress *RecoverBA) { + LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); + SEHHandler Handler; + Handler.FilterOrFinally = Filter; + Handler.RecoverBA = RecoverBA; + LP.SEHHandlers.push_back(Handler); +} + +void MachineModuleInfo::addSEHCleanupHandler(MachineBasicBlock *LandingPad, + const Function *Cleanup) { + LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad); + SEHHandler Handler; + Handler.FilterOrFinally = Cleanup; + Handler.RecoverBA = nullptr; + LP.SEHHandlers.push_back(Handler); +} + /// TidyLandingPads - Remap landing pad labels and remove any deleted landing /// pads. void MachineModuleInfo::TidyLandingPads(DenseMap *LPMap) { @@ -462,7 +488,7 @@ void MachineModuleInfo::TidyLandingPads(DenseMap *LPMap) { if (LandingPad.LandingPadLabel && !LandingPad.LandingPadLabel->isDefined() && (!LPMap || (*LPMap)[LandingPad.LandingPadLabel] == 0)) - LandingPad.LandingPadLabel = 0; + LandingPad.LandingPadLabel = nullptr; // Special case: we *should* emit LPs with null LP MBB. This indicates // "nounwind" case. @@ -503,13 +529,12 @@ void MachineModuleInfo::TidyLandingPads(DenseMap *LPMap) { /// indexes. void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym, ArrayRef Sites) { - for (unsigned I = 0, E = Sites.size(); I != E; ++I) - LPadToCallSiteMap[Sym].push_back(Sites[I]); + LPadToCallSiteMap[Sym].append(Sites.begin(), Sites.end()); } /// getTypeIDFor - Return the type id for the specified typeinfo. This is /// function wide. -unsigned MachineModuleInfo::getTypeIDFor(const GlobalVariable *TI) { +unsigned MachineModuleInfo::getTypeIDFor(const GlobalValue *TI) { for (unsigned i = 0, N = TypeInfos.size(); i != N; ++i) if (TypeInfos[i] == TI) return i + 1; @@ -541,8 +566,7 @@ try_next:; // Add the new filter. int FilterID = -(1 + FilterIds.size()); FilterIds.reserve(FilterIds.size() + TyIds.size() + 1); - for (unsigned I = 0, N = TyIds.size(); I != N; ++I) - FilterIds.push_back(TyIds[I]); + FilterIds.insert(FilterIds.end(), TyIds.begin(), TyIds.end()); FilterEnds.push_back(FilterIds.size()); FilterIds.push_back(0); // terminator return FilterID; @@ -550,24 +574,33 @@ try_next:; /// getPersonality - Return the personality function for the current function. const Function *MachineModuleInfo::getPersonality() const { - // FIXME: Until PR1414 will be fixed, we're using 1 personality function per - // function - return !LandingPads.empty() ? LandingPads[0].Personality : NULL; + for (const LandingPadInfo &LPI : LandingPads) + if (LPI.Personality) + return LPI.Personality; + return nullptr; +} + +EHPersonality MachineModuleInfo::getPersonalityType() { + if (PersonalityTypeCache == EHPersonality::Unknown) { + if (const Function *F = getPersonality()) + PersonalityTypeCache = classifyEHPersonality(F); + } + return PersonalityTypeCache; } /// getPersonalityIndex - Return unique index for current personality /// function. NULL/first personality function should always get zero index. unsigned MachineModuleInfo::getPersonalityIndex() const { - const Function* Personality = NULL; + const Function* Personality = nullptr; // Scan landing pads. If there is at least one non-NULL personality - use it. - for (unsigned i = 0; i != LandingPads.size(); ++i) + for (unsigned i = 0, e = LandingPads.size(); i != e; ++i) if (LandingPads[i].Personality) { Personality = LandingPads[i].Personality; break; } - for (unsigned i = 0; i < Personalities.size(); ++i) { + for (unsigned i = 0, e = Personalities.size(); i < e; ++i) { if (Personalities[i] == Personality) return i; } @@ -576,3 +609,18 @@ unsigned MachineModuleInfo::getPersonalityIndex() const { // in the zero index. return 0; } + +const Function *MachineModuleInfo::getWinEHParent(const Function *F) const { + StringRef WinEHParentName = + F->getFnAttribute("wineh-parent").getValueAsString(); + if (WinEHParentName.empty() || WinEHParentName == F->getName()) + return F; + return F->getParent()->getFunction(WinEHParentName); +} + +WinEHFuncInfo &MachineModuleInfo::getWinEHFuncInfo(const Function *F) { + auto &Ptr = FuncInfoMap[getWinEHParent(F)]; + if (!Ptr) + Ptr.reset(new WinEHFuncInfo); + return *Ptr; +}