// Forward declarations.
class Constant;
class GlobalVariable;
+class BlockAddress;
class MDNode;
class MMIAddrLabelMap;
class MachineBasicBlock;
class StructType;
struct WinEHFuncInfo;
+struct SEHHandler {
+ // Filter or finally function. Null indicates a catch-all.
+ const Function *FilterOrFinally;
+
+ // Address of block to recover at. Null for a finally handler.
+ const BlockAddress *RecoverBA;
+};
+
//===----------------------------------------------------------------------===//
/// LandingPadInfo - This structure is used to retain landing pad info for
/// the current function.
MachineBasicBlock *LandingPadBlock; // Landing pad block.
SmallVector<MCSymbol *, 1> BeginLabels; // Labels prior to invoke.
SmallVector<MCSymbol *, 1> EndLabels; // Labels after invoke.
- SmallVector<MCSymbol *, 1> ClauseLabels; // Labels for each clause.
+ SmallVector<SEHHandler, 1> SEHHandlers; // SEH handlers active at this lpad.
MCSymbol *LandingPadLabel; // Label at beginning of landing pad.
- const Function *Personality; // Personality function.
std::vector<int> TypeIds; // List of type ids (filters negative).
int WinEHState; // WinEH specific state number.
explicit LandingPadInfo(MachineBasicBlock *MBB)
- : LandingPadBlock(MBB), LandingPadLabel(nullptr), Personality(nullptr),
+ : LandingPadBlock(MBB), LandingPadLabel(nullptr),
WinEHState(-1) {}
};
/// emit common EH frames.
std::vector<const Function *> 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<const Function *, 32> 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;
+ bool HasEHFunclets;
/// DbgInfoAvailable - True if debugging information is available
/// in this module.
static char ID; // Pass identification, replacement for typeid
struct VariableDbgInfo {
- TrackingMDNodeRef Var;
- TrackingMDNodeRef Expr;
+ const DILocalVariable *Var;
+ const DIExpression *Expr;
unsigned Slot;
- DebugLoc Loc;
+ const DILocation *Loc;
- VariableDbgInfo(MDNode *Var, MDNode *Expr, unsigned Slot, DebugLoc Loc)
+ VariableDbgInfo(const DILocalVariable *Var, const DIExpression *Expr,
+ unsigned Slot, const DILocation *Loc)
: Var(Var), Expr(Expr), Slot(Slot), Loc(Loc) {}
};
typedef SmallVector<VariableDbgInfo, 4> VariableDbgInfoMapTy;
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;
+ return FuncInfoMap.count(F) > 0;
}
/// getInfo - Keep track of various per-function pieces of information for
return const_cast<MachineModuleInfo*>(this)->getObjFileInfo<Ty>();
}
- /// AnalyzeModule - Scan the module for global debug information.
- ///
- void AnalyzeModule(const Module &M);
-
/// hasDebugInfo - Returns true if valid debug info is present.
///
bool hasDebugInfo() const { return DbgInfoAvailable; }
void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; }
+ // Returns true if we need to generate precise CFI. Currently
+ // this is equivalent to hasDebugInfo(), but if we ever implement
+ // async EH, it will require precise CFI as well.
+ bool usePreciseUnwindInfo() const { return hasDebugInfo(); }
+
bool callsEHReturn() const { return CallsEHReturn; }
void setCallsEHReturn(bool b) { CallsEHReturn = b; }
bool callsUnwindInit() const { return CallsUnwindInit; }
void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
+ bool hasEHFunclets() const { return HasEHFunclets; }
+ void setHasEHFunclets(bool V) { HasEHFunclets = V; }
+
bool usesVAFloatArgument() const {
return UsesVAFloatArgument;
}
/// 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.
- MCSymbol *getAddrLabelSymbol(const BasicBlock *BB);
+ MCSymbol *getAddrLabelSymbol(const BasicBlock *BB) {
+ return getAddrLabelSymbolToEmit(BB).front();
+ }
/// getAddrLabelSymbolToEmit - Return the symbol to be used for the specified
/// 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<MCSymbol*> getAddrLabelSymbolToEmit(const BasicBlock *BB);
+ ArrayRef<MCSymbol *> getAddrLabelSymbolToEmit(const BasicBlock *BB);
/// takeDeletedSymbolsForFunction - If the specified function has had any
/// references to address-taken blocks generated, but the block got deleted,
/// addPersonality - Provide the personality function for the exception
/// information.
- void addPersonality(MachineBasicBlock *LandingPad,
- const Function *Personality);
+ void addPersonality(const Function *Personality);
void addWinEHState(MachineBasicBlock *LandingPad, int State);
- /// 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<const Function *>& 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) const {
- return UsedFunctions.count(F);
- }
-
/// addCatchTypeInfo - Provide the catch typeinfo for a landing pad.
///
void addCatchTypeInfo(MachineBasicBlock *LandingPad,
///
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);
+ void addSEHCatchHandler(MachineBasicBlock *LandingPad, const Function *Filter,
+ const BlockAddress *RecoverLabel);
+
+ void addSEHCleanupHandler(MachineBasicBlock *LandingPad,
+ const Function *Cleanup);
/// getTypeIDFor - Return the type id for the specified typeinfo. This is
/// function wide.
return FilterIds;
}
- /// getPersonality - Return a personality function if available. The presence
- /// 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 *Var, MDNode *Expr, unsigned Slot,
- DebugLoc Loc) {
+ void setVariableDbgInfo(const DILocalVariable *Var, const DIExpression *Expr,
+ unsigned Slot, const DILocation *Loc) {
VariableDbgInfos.emplace_back(Var, Expr, Slot, Loc);
}
projects / oota-llvm.git / blobdiff