#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"
: LandingPadBlock(MBB), LandingPadLabel(0), Personality(0) {}
};
+class MMIAddrLabelMap;
+
//===----------------------------------------------------------------------===//
/// MachineModuleInfo - This class contains meta information specific to a
/// module. Queries can be made by different debugging and exception handling
/// Context - This is the MCContext used for the entire code generator.
MCContext Context;
+ /// TheModule - This is the LLVM Module being worked on.
+ Module *TheModule;
+
/// ObjFileMMI - This is the object-file-format-specific implementation of
/// MachineModuleInfoImpl, which lets targets accumulate whatever info they
/// want.
MachineModuleInfoImpl *ObjFileMMI;
- // LabelIDList - One entry per assigned label. Normally the entry is equal to
- // the list index(+1). If the entry is zero then the label has been deleted.
- // Any other value indicates the label has been deleted by is mapped to
- // another label.
- std::vector<unsigned> LabelIDList;
-
// 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;
/// 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;
public:
static char ID; // Pass identification, replacement for typeid
- typedef std::pair<unsigned, TrackingVH<MDNode> > UnsignedAndMDNodePair;
- typedef SmallVector< std::pair<TrackingVH<MDNode>, UnsignedAndMDNodePair>, 4>
+ typedef std::pair<unsigned, DebugLoc> UnsignedDebugLocPair;
+ typedef SmallVector<std::pair<TrackingVH<MDNode>, UnsignedDebugLocPair>, 4>
VariableDbgInfoMapTy;
VariableDbgInfoMapTy VariableDbgInfo;
const MCContext &getContext() const { return Context; }
MCContext &getContext() { return Context; }
+ void setModule(Module *M) { TheModule = M; }
+ Module *getModule() const { return TheModule; }
+
/// getInfo - Keep track of various per-function pieces of information for
/// backends that would like to do so.
///
bool callsUnwindInit() const { return CallsUnwindInit; }
void setCallsUnwindInit(bool b) { CallsUnwindInit = b; }
- /// NextLabelID - Return the next unique label id.
- ///
- unsigned NextLabelID() {
- unsigned ID = (unsigned)LabelIDList.size() + 1;
- LabelIDList.push_back(ID);
- return ID;
- }
-
- /// getLabelSym - Turn a label ID into a symbol.
- MCSymbol *getLabelSym(unsigned ID);
-
- /// InvalidateLabel - Inhibit use of the specified label # from
- /// MachineModuleInfo, for example because the code was deleted.
- void InvalidateLabel(unsigned LabelID) {
- // Remap to zero to indicate deletion.
- assert(0 < LabelID && LabelID <= LabelIDList.size() &&
- "Old label ID out of range.");
- LabelIDList[LabelID - 1] = 0;
- }
-
- /// isLabelDeleted - Return true if the label was deleted.
- /// FIXME: This should eventually be eliminated and use the 'is emitted' bit
- /// on MCSymbol.
- bool isLabelDeleted(unsigned LabelID) const {
- assert(LabelID <= LabelIDList.size() && "Debug label ID out of range.");
- return LabelID == 0 || LabelIDList[LabelID - 1] == 0;
- }
-
/// getFrameMoves - Returns a reference to a list of moves done in the current
/// function's prologue. Used to construct frame maps for debug and exception
/// handling comsumers.
std::vector<MachineMove> &getFrameMoves() { return FrameMoves; }
- //===-EH-----------------------------------------------------------------===//
+ /// 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);
+
+ /// 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);
+
+ /// 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,
+ std::vector<MCSymbol*> &Result);
+
+
+ //===- EH ---------------------------------------------------------------===//
/// getOrCreateLandingPadInfo - Find or create an LandingPadInfo for the
/// specified MachineBasicBlock.
/// addLandingPad - Add a new panding pad. Returns the label ID for the
/// landing pad entry.
- unsigned addLandingPad(MachineBasicBlock *LandingPad);
+ MCSymbol *addLandingPad(MachineBasicBlock *LandingPad);
/// addPersonality - Provide the personality function for the exception
/// information.
/// of one is required to emit exception handling info.
Function *getPersonality() const;
- /// setVariableDbgInfo - Collect information used to emit debugging information
- /// of a variable.
- void setVariableDbgInfo(MDNode *N, unsigned Slot, MDNode *Scope) {
- VariableDbgInfo.push_back(std::make_pair(N, std::make_pair(Slot, Scope)));
+ /// 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)));
}
VariableDbgInfoMapTy &getVariableDbgInfo() { return VariableDbgInfo; }