-/// DotDebugLocEntry - This struct describes location entries emitted in
-/// .debug_loc section.
-typedef struct DotDebugLocEntry {
- const MCSymbol *Begin;
- const MCSymbol *End;
- MachineLocation Loc;
- const MDNode *Variable;
- bool Merged;
- bool Constant;
- enum EntryType {
- E_Location,
- E_Integer,
- E_ConstantFP,
- E_ConstantInt
- };
- enum EntryType EntryKind;
-
- union {
- int64_t Int;
- const ConstantFP *CFP;
- const ConstantInt *CIP;
- } Constants;
- DotDebugLocEntry()
- : Begin(0), End(0), Variable(0), Merged(false),
- Constant(false) { Constants.Int = 0;}
- DotDebugLocEntry(const MCSymbol *B, const MCSymbol *E, MachineLocation &L,
- const MDNode *V)
- : Begin(B), End(E), Loc(L), Variable(V), Merged(false),
- Constant(false) { Constants.Int = 0; EntryKind = E_Location; }
- DotDebugLocEntry(const MCSymbol *B, const MCSymbol *E, int64_t i)
- : Begin(B), End(E), Variable(0), Merged(false),
- Constant(true) { Constants.Int = i; EntryKind = E_Integer; }
- DotDebugLocEntry(const MCSymbol *B, const MCSymbol *E, const ConstantFP *FPtr)
- : Begin(B), End(E), Variable(0), Merged(false),
- Constant(true) { Constants.CFP = FPtr; EntryKind = E_ConstantFP; }
- DotDebugLocEntry(const MCSymbol *B, const MCSymbol *E,
- const ConstantInt *IPtr)
- : Begin(B), End(E), Variable(0), Merged(false),
- Constant(true) { Constants.CIP = IPtr; EntryKind = E_ConstantInt; }
-
- /// Empty entries are also used as a trigger to emit temp label. Such
- /// labels are referenced is used to find debug_loc offset for a given DIE.
- bool isEmpty() { return Begin == 0 && End == 0; }
- bool isMerged() { return Merged; }
- void Merge(DotDebugLocEntry *Next) {
- if (!(Begin && Loc == Next->Loc && End == Next->Begin))
- return;
- Next->Begin = Begin;
- Merged = true;
- }
- bool isLocation() const { return EntryKind == E_Location; }
- bool isInt() const { return EntryKind == E_Integer; }
- bool isConstantFP() const { return EntryKind == E_ConstantFP; }
- bool isConstantInt() const { return EntryKind == E_ConstantInt; }
- int64_t getInt() { return Constants.Int; }
- const ConstantFP *getConstantFP() { return Constants.CFP; }
- const ConstantInt *getConstantInt() { return Constants.CIP; }
-} DotDebugLocEntry;
-