#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"
// 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(nullptr), Personality(nullptr) {}
+ : 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>&);
};
//===----------------------------------------------------------------------===//
/// 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
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;
// Real constructor.
MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI,
const MCObjectFileInfo *MOFI);
- ~MachineModuleInfo();
+ ~MachineModuleInfo() override;
// Initialization and Finalization
bool doInitialization(Module &) override;
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.
///
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.
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;
///
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 GlobalValue *TI);
/// 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);
}
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