#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"
#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"
-#include "llvm/Support/ValueHandle.h"
namespace llvm {
// Forward declarations.
class Constant;
class GlobalVariable;
+class BlockAddress;
class MDNode;
class MMIAddrLabelMap;
class MachineBasicBlock;
class Module;
class PointerType;
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.
///
struct LandingPadInfo {
- MachineBasicBlock *LandingPadBlock; // Landing pad block.
- SmallVector<MCSymbol*, 1> BeginLabels; // Labels prior to invoke.
- SmallVector<MCSymbol*, 1> EndLabels; // Labels after invoke.
- MCSymbol *LandingPadLabel; // Label at beginning of landing pad.
- const Function *Personality; // Personality function.
- std::vector<int> TypeIds; // List of type ids (filters negative)
+ MachineBasicBlock *LandingPadBlock; // Landing pad block.
+ SmallVector<MCSymbol *, 1> BeginLabels; // Labels prior to invoke.
+ SmallVector<MCSymbol *, 1> EndLabels; // Labels after invoke.
+ 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(0), Personality(0) {}
+ : LandingPadBlock(MBB), LandingPadLabel(nullptr), Personality(nullptr),
+ WinEHState(-1) {}
};
//===----------------------------------------------------------------------===//
virtual ~MachineModuleInfoImpl();
typedef std::vector<std::pair<MCSymbol*, StubValueTy> > SymbolListTy;
protected:
- static SymbolListTy GetSortedStubs(const DenseMap<MCSymbol*, StubValueTy>&);
+
+ /// Return the entries from a DenseMap in a deterministic sorted orer.
+ /// Clears the map.
+ static SymbolListTy getSortedStubs(DenseMap<MCSymbol*, StubValueTy>&);
};
//===----------------------------------------------------------------------===//
/// by debug and exception handling consumers.
std::vector<MCCFIInstruction> 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<LandingPadInfo> LandingPads;
unsigned CurCallSite;
/// TypeInfos - List of C++ TypeInfo used in the current function.
- std::vector<const GlobalVariable *> TypeInfos;
+ std::vector<const GlobalValue *> TypeInfos;
/// FilterIds - List of typeids encoding filters used in the current function.
std::vector<unsigned> FilterIds;
/// 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;
/// 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<const Function *, std::unique_ptr<WinEHFuncInfo>> FuncInfoMap;
+
public:
static char ID; // Pass identification, replacement for typeid
- typedef std::pair<unsigned, DebugLoc> UnsignedDebugLocPair;
- typedef SmallVector<std::pair<TrackingVH<MDNode>, UnsignedDebugLocPair>, 4>
- VariableDbgInfoMapTy;
- VariableDbgInfoMapTy VariableDbgInfo;
+ struct VariableDbgInfo {
+ const DILocalVariable *Var;
+ const DIExpression *Expr;
+ unsigned Slot;
+ const DILocation *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;
+ VariableDbgInfoMapTy VariableDbgInfos;
MachineModuleInfo(); // DUMMY CONSTRUCTOR, DO NOT CALL.
// Real constructor.
MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI,
const MCObjectFileInfo *MOFI);
- ~MachineModuleInfo();
+ ~MachineModuleInfo() override;
// Initialization and Finalization
- virtual bool doInitialization(Module &);
- virtual bool doFinalization(Module &);
+ bool doInitialization(Module &) override;
+ bool doFinalization(Module &) override;
/// EndFunction - Discard function meta information.
///
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<typename Ty>
Ty &getObjFileInfo() {
- if (ObjFileMMI == 0)
+ if (ObjFileMMI == nullptr)
ObjFileMMI = new Ty(*this);
return *static_cast<Ty*>(ObjFileMMI);
}
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; }
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.
return FrameInstructions;
}
- void addFrameInst(const MCCFIInstruction &Inst) {
+ unsigned LLVM_ATTRIBUTE_UNUSED_RESULT
+ addFrameInst(const MCCFIInstruction &Inst) {
FrameInstructions.push_back(Inst);
+ 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.
- 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,
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;
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,
- ArrayRef<const GlobalVariable *> TyInfo);
+ ArrayRef<const GlobalValue *> TyInfo);
/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad.
///
void addFilterTypeInfo(MachineBasicBlock *LandingPad,
- ArrayRef<const GlobalVariable *> TyInfo);
+ ArrayRef<const GlobalValue *> TyInfo);
/// addCleanup - Add a cleanup action for a landing pad.
///
void addCleanup(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.
- unsigned getTypeIDFor(const GlobalVariable *TI);
+ unsigned getTypeIDFor(const GlobalValue *TI);
/// getFilterIDFor - Return the id of the filter encoded by TyIds. This is
/// function wide.
/// TidyLandingPads - Remap landing pad labels and remove any deleted landing
/// pads.
- void TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap = 0);
+ void TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap = nullptr);
/// getLandingPads - Return a reference to the landing pad info for the
/// current function.
/// getTypeInfos - Return a reference to the C++ typeinfo for the current
/// function.
- const std::vector<const GlobalVariable *> &getTypeInfos() const {
+ const std::vector<const GlobalValue *> &getTypeInfos() const {
return TypeInfos;
}
/// 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.push_back(std::make_pair(N, std::make_pair(Slot, Loc)));
+ void setVariableDbgInfo(const DILocalVariable *Var, const DIExpression *Expr,
+ unsigned Slot, const DILocation *Loc) {
+ VariableDbgInfos.emplace_back(Var, Expr, Slot, Loc);
}
- VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfo; }
+ VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfos; }
}; // End class MachineModuleInfo
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