//===----------------------------------------------------------------------===//
#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/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.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;
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);
void setMap(MMIAddrLabelMap *map) { Map = map; }
- virtual void deleted();
- virtual void allUsesReplacedWith(Value *V2);
+ void deleted() override;
+ void allUsesReplacedWith(Value *V2) override;
};
class MMIAddrLabelMap {
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.
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.
//===----------------------------------------------------------------------===//
-MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI)
-: ImmutablePass(ID), Context(MAI),
- ObjFileMMI(0),
- CurCallSite(0), CallsEHReturn(0), CallsUnwindInit(0), DbgInfoAvailable(false),
- CallsExternalVAFunctionWithFloatingPointArguments(false) {
+MachineModuleInfo::MachineModuleInfo(const MCAsmInfo &MAI,
+ const MCRegisterInfo &MRI,
+ const MCObjectFileInfo *MOFI)
+ : 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) {
- assert(0 && "This MachineModuleInfo constructor should never be called, MMI "
- "should always be explicitly constructed by LLVMTargetMachine");
- abort();
+ : 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;
}
///
void MachineModuleInfo::EndFunction() {
// Clean up frame info.
- FrameMoves.clear();
+ FrameInstructions.clear();
// Clean up exception info.
LandingPads.clear();
FilterEnds.clear();
CallsEHReturn = 0;
CallsUnwindInit = 0;
- VariableDbgInfo.clear();
+ VariableDbgInfos.clear();
}
/// AnalyzeModule - Scan the module for global debug information.
if (!GV || !GV->hasInitializer()) return;
// Should be an array of 'i8*'.
- const ConstantArray *InitList = dyn_cast<ConstantArray>(GV->getInitializer());
- if (InitList == 0) return;
+ const ConstantArray *InitList = cast<ConstantArray>(GV->getInitializer());
for (unsigned i = 0, e = InitList->getNumOperands(); i != e; ++i)
if (const Function *F =
/// 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<BasicBlock*>(BB));
}
std::vector<MCSymbol*> MachineModuleInfo::
getAddrLabelSymbolToEmit(const BasicBlock *BB) {
// Lazily create AddrLabelSymbols.
- if (AddrLabelSymbols == 0)
+ if (!AddrLabelSymbols)
AddrLabelSymbols = new MMIAddrLabelMap(Context);
return AddrLabelSymbols->getAddrLabelSymbolToEmit(const_cast<BasicBlock*>(BB));
}
takeDeletedSymbolsForFunction(const Function *F,
std::vector<MCSymbol*> &Result) {
// If no blocks have had their addresses taken, we're done.
- if (AddrLabelSymbols == 0) return;
+ if (!AddrLabelSymbols) return;
return AddrLabelSymbols->
takeDeletedSymbolsForFunction(const_cast<Function*>(F), Result);
}
// 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,
- std::vector<const GlobalVariable *> &TyInfo) {
+void MachineModuleInfo::
+addCatchTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo) {
LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
for (unsigned N = TyInfo.size(); N; --N)
LP.TypeIds.push_back(getTypeIDFor(TyInfo[N - 1]));
/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad.
///
-void MachineModuleInfo::addFilterTypeInfo(MachineBasicBlock *LandingPad,
- std::vector<const GlobalVariable *> &TyInfo) {
+void MachineModuleInfo::
+addFilterTypeInfo(MachineBasicBlock *LandingPad,
+ ArrayRef<const GlobalValue *> TyInfo) {
LandingPadInfo &LP = getOrCreateLandingPadInfo(LandingPad);
std::vector<unsigned> IdsInFilter(TyInfo.size());
for (unsigned I = 0, E = TyInfo.size(); I != E; ++I)
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<MCSymbol*, uintptr_t> *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.
}
}
+/// setCallSiteLandingPad - Map the landing pad's EH symbol to the call site
+/// indexes.
+void MachineModuleInfo::setCallSiteLandingPad(MCSymbol *Sym,
+ ArrayRef<unsigned> Sites) {
+ 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;
// 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;
/// 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;
}
// 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;
+}
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