#ifndef LLVM_CODEGEN_MACHINEMODULEINFO_H
#define LLVM_CODEGEN_MACHINEMODULEINFO_H
-#include "llvm/Pass.h"
-#include "llvm/GlobalValue.h"
-#include "llvm/Metadata.h"
-#include "llvm/CodeGen/MachineLocation.h"
-#include "llvm/MC/MCContext.h"
-#include "llvm/Support/Dwarf.h"
-#include "llvm/Support/DebugLoc.h"
-#include "llvm/Support/ValueHandle.h"
-#include "llvm/System/DataTypes.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/PointerIntPair.h"
#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/SmallVector.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"
namespace llvm {
class Constant;
class GlobalVariable;
class MDNode;
+class MMIAddrLabelMap;
class MachineBasicBlock;
class MachineFunction;
class Module;
class PointerType;
class StructType;
-
-/// MachineModuleInfoImpl - This class can be derived from and used by targets
-/// to hold private target-specific information for each Module. Objects of
-/// type are accessed/created with MMI::getInfo and destroyed when the
-/// MachineModuleInfo is destroyed.
-class MachineModuleInfoImpl {
-public:
- typedef PointerIntPair<MCSymbol*, 1, bool> StubValueTy;
- virtual ~MachineModuleInfoImpl();
- typedef std::vector<std::pair<MCSymbol*, StubValueTy> > SymbolListTy;
-protected:
- static SymbolListTy GetSortedStubs(const DenseMap<MCSymbol*, StubValueTy>&);
-};
-
-
//===----------------------------------------------------------------------===//
/// LandingPadInfo - This structure is used to retain landing pad info for
: LandingPadBlock(MBB), LandingPadLabel(0), Personality(0) {}
};
-class MMIAddrLabelMap;
-
+//===----------------------------------------------------------------------===//
+/// MachineModuleInfoImpl - This class can be derived from and used by targets
+/// to hold private target-specific information for each Module. Objects of
+/// type are accessed/created with MMI::getInfo and destroyed when the
+/// MachineModuleInfo is destroyed.
+///
+class MachineModuleInfoImpl {
+public:
+ typedef PointerIntPair<MCSymbol*, 1, bool> StubValueTy;
+ virtual ~MachineModuleInfoImpl();
+ typedef std::vector<std::pair<MCSymbol*, StubValueTy> > SymbolListTy;
+protected:
+ static SymbolListTy GetSortedStubs(const DenseMap<MCSymbol*, StubValueTy>&);
+};
+
//===----------------------------------------------------------------------===//
/// MachineModuleInfo - This class contains meta information specific to a
-/// module. Queries can be made by different debugging and exception handling
+/// module. Queries can be made by different debugging and exception handling
/// schemes and reformated for specific use.
///
class MachineModuleInfo : public ImmutablePass {
/// Context - This is the MCContext used for the entire code generator.
MCContext Context;
-
+
/// TheModule - This is the LLVM Module being worked on.
const Module *TheModule;
-
+
/// ObjFileMMI - This is the object-file-format-specific implementation of
/// MachineModuleInfoImpl, which lets targets accumulate whatever info they
/// want.
MachineModuleInfoImpl *ObjFileMMI;
- // FrameMoves - List of moves done by a function's prolog. Used to construct
- // frame maps by debug and exception handling consumers.
- std::vector<MachineMove> FrameMoves;
-
- // LandingPads - List of LandingPadInfo describing the landing pad information
- // in the current function.
+ /// List of moves done by a function's prolog. Used to construct frame maps
+ /// 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;
- // Map of invoke call site index values to associated begin EH_LABEL for
- // the current function.
+ /// LPadToCallSiteMap - Map a landing pad's EH symbol to the call site
+ /// indexes.
+ DenseMap<MCSymbol*, SmallVector<unsigned, 4> > LPadToCallSiteMap;
+
+ /// CallSiteMap - Map of invoke call site index values to associated begin
+ /// EH_LABEL for the current function.
DenseMap<MCSymbol*, unsigned> CallSiteMap;
- // The current call site index being processed, if any. 0 if none.
+ /// CurCallSite - The current call site index being processed, if any. 0 if
+ /// none.
unsigned CurCallSite;
- // TypeInfos - List of C++ TypeInfo used in the current function.
- //
+ /// TypeInfos - List of C++ TypeInfo used in the current function.
std::vector<const GlobalVariable *> TypeInfos;
- // FilterIds - List of typeids encoding filters used in the current function.
- //
+ /// FilterIds - List of typeids encoding filters used in the current function.
std::vector<unsigned> FilterIds;
- // FilterEnds - List of the indices in FilterIds corresponding to filter
- // terminators.
- //
+ /// FilterEnds - List of the indices in FilterIds corresponding to filter
+ /// terminators.
std::vector<unsigned> FilterEnds;
- // Personalities - Vector of all personality functions ever seen. Used to emit
- // common EH frames.
+ /// Personalities - Vector of all personality functions ever seen. Used to
+ /// emit common EH frames.
std::vector<const Function *> Personalities;
/// UsedFunctions - The functions in the @llvm.used list in a more easily
/// 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;
-
+
/// DbgInfoAvailable - True if debugging information is available
/// in this module.
bool DbgInfoAvailable;
+ /// UsesVAFloatArgument - True if this module calls VarArg function with
+ /// floating-point arguments. This is used to emit an undefined reference
+ /// to _fltused on Windows targets.
+ bool UsesVAFloatArgument;
+
public:
static char ID; // Pass identification, replacement for typeid
VariableDbgInfoMapTy VariableDbgInfo;
MachineModuleInfo(); // DUMMY CONSTRUCTOR, DO NOT CALL.
- MachineModuleInfo(const MCAsmInfo &MAI); // Real constructor.
+ // Real constructor.
+ MachineModuleInfo(const MCAsmInfo &MAI, const MCRegisterInfo &MRI,
+ const MCObjectFileInfo *MOFI);
~MachineModuleInfo();
-
- bool doInitialization();
- bool doFinalization();
+
+ // Initialization and Finalization
+ virtual bool doInitialization(Module &);
+ virtual bool doFinalization(Module &);
/// EndFunction - Discard function meta information.
///
void EndFunction();
-
+
const MCContext &getContext() const { return Context; }
MCContext &getContext() { return Context; }
void setModule(const Module *M) { TheModule = M; }
const Module *getModule() const { return TheModule; }
-
+
/// getInfo - Keep track of various per-function pieces of information for
/// backends that would like to do so.
///
ObjFileMMI = new Ty(*this);
return *static_cast<Ty*>(ObjFileMMI);
}
-
+
template<typename Ty>
const Ty &getObjFileInfo() const {
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 = true; }
+ void setDebugInfoAvailability(bool avail) { DbgInfoAvailable = avail; }
bool callsEHReturn() const { return CallsEHReturn; }
void setCallsEHReturn(bool b) { CallsEHReturn = b; }
bool callsUnwindInit() const { return CallsUnwindInit; }
void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
-
- /// getFrameMoves - Returns a reference to a list of moves done in the current
+
+ bool usesVAFloatArgument() const {
+ return UsesVAFloatArgument;
+ }
+
+ void setUsesVAFloatArgument(bool b) {
+ UsesVAFloatArgument = 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.
- std::vector<MachineMove> &getFrameMoves() { return FrameMoves; }
-
+ const std::vector<MCCFIInstruction> &getFrameInstructions() const {
+ return FrameInstructions;
+ }
+
+ void addFrameInst(const MCCFIInstruction &Inst) {
+ FrameInstructions.push_back(Inst);
+ }
+
+ /// 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.
/// 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);
-
+
/// takeDeletedSymbolsForFunction - If the specified function has had any
/// references to address-taken blocks generated, but the block got deleted,
/// return the symbol now so we can emit it. This prevents emitting a
/// reference to a symbol that has no definition.
- void takeDeletedSymbolsForFunction(const Function *F,
+ void takeDeletedSymbolsForFunction(const Function *F,
std::vector<MCSymbol*> &Result);
-
+
//===- EH ---------------------------------------------------------------===//
/// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the
/// associate it with a try landing pad block.
void addInvoke(MachineBasicBlock *LandingPad,
MCSymbol *BeginLabel, MCSymbol *EndLabel);
-
- /// addLandingPad - Add a new panding pad. Returns the label ID for the
+
+ /// addLandingPad - Add a new panding pad. Returns the label ID for the
/// landing pad entry.
MCSymbol *addLandingPad(MachineBasicBlock *LandingPad);
-
+
/// addPersonality - Provide the personality function for the exception
/// information.
void addPersonality(MachineBasicBlock *LandingPad,
/// 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) {
+ bool isUsedFunction(const Function *F) const {
return UsedFunctions.count(F);
}
/// addCatchTypeInfo - Provide the catch typeinfo for a landing pad.
///
void addCatchTypeInfo(MachineBasicBlock *LandingPad,
- std::vector<const GlobalVariable *> &TyInfo);
+ ArrayRef<const GlobalVariable *> TyInfo);
/// addFilterTypeInfo - Provide the filter typeinfo for a landing pad.
///
void addFilterTypeInfo(MachineBasicBlock *LandingPad,
- std::vector<const GlobalVariable *> &TyInfo);
+ ArrayRef<const GlobalVariable *> TyInfo);
/// addCleanup - Add a cleanup action for a landing pad.
///
void addCleanup(MachineBasicBlock *LandingPad);
- /// getTypeIDFor - Return the type id for the specified typeinfo. This is
+ /// getTypeIDFor - Return the type id for the specified typeinfo. This is
/// function wide.
unsigned getTypeIDFor(const GlobalVariable *TI);
/// TidyLandingPads - Remap landing pad labels and remove any deleted landing
/// pads.
void TidyLandingPads(DenseMap<MCSymbol*, uintptr_t> *LPMap = 0);
-
+
/// getLandingPads - Return a reference to the landing pad info for the
/// current function.
const std::vector<LandingPadInfo> &getLandingPads() const {
return LandingPads;
}
- /// setCallSiteBeginLabel - Map the begin label for a call site
+ /// setCallSiteLandingPad - Map the landing pad's EH symbol to the call
+ /// site indexes.
+ void setCallSiteLandingPad(MCSymbol *Sym, ArrayRef<unsigned> Sites);
+
+ /// getCallSiteLandingPad - Get the call site indexes for a landing pad EH
+ /// symbol.
+ SmallVectorImpl<unsigned> &getCallSiteLandingPad(MCSymbol *Sym) {
+ assert(hasCallSiteLandingPad(Sym) &&
+ "missing call site number for landing pad!");
+ return LPadToCallSiteMap[Sym];
+ }
+
+ /// hasCallSiteLandingPad - Return true if the landing pad Eh symbol has an
+ /// associated call site.
+ bool hasCallSiteLandingPad(MCSymbol *Sym) {
+ return !LPadToCallSiteMap[Sym].empty();
+ }
+
+ /// setCallSiteBeginLabel - Map the begin label for a call site.
void setCallSiteBeginLabel(MCSymbol *BeginLabel, unsigned Site) {
CallSiteMap[BeginLabel] = Site;
}
- /// getCallSiteBeginLabel - Get the call site number for a begin label
+ /// getCallSiteBeginLabel - Get the call site number for a begin label.
unsigned getCallSiteBeginLabel(MCSymbol *BeginLabel) {
- assert(CallSiteMap.count(BeginLabel) &&
+ assert(hasCallSiteBeginLabel(BeginLabel) &&
"Missing call site number for EH_LABEL!");
return CallSiteMap[BeginLabel];
}
+ /// hasCallSiteBeginLabel - Return true if the begin label has a call site
+ /// number associated with it.
+ bool hasCallSiteBeginLabel(MCSymbol *BeginLabel) {
+ return CallSiteMap[BeginLabel] != 0;
+ }
+
/// setCurrentCallSite - Set the call site currently being processed.
void setCurrentCallSite(unsigned Site) { CurCallSite = Site; }
/// getCurrentCallSite - Get the call site currently being processed, if any.
/// return zero if none.
- unsigned getCurrentCallSite(void) { return CurCallSite; }
+ unsigned getCurrentCallSite() { return CurCallSite; }
/// getTypeInfos - Return a reference to the C++ typeinfo for the current
/// function.
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