DebugInfo: Split DebugLocEntry into its own file.
It seems big enough that it deserves its own file - but it is header
only, so there's no need for another cpp file, etc.
llvm-svn: 205360
diff --git a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
index 23ab7f0..fcac25d 100644
--- a/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
+++ b/llvm/lib/CodeGen/AsmPrinter/DwarfDebug.h
@@ -16,6 +16,7 @@
#include "AsmPrinterHandler.h"
#include "DIE.h"
+#include "DebugLocEntry.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallPtrSet.h"
@@ -58,91 +59,6 @@
MCSymbol *getLabel() const { return Label; }
};
-/// \brief This struct describes location entries emitted in the .debug_loc
-/// section.
-class DebugLocEntry {
- // Begin and end symbols for the address range that this location is valid.
- const MCSymbol *Begin;
- const MCSymbol *End;
-
- // Type of entry that this represents.
- enum EntryType { E_Location, E_Integer, E_ConstantFP, E_ConstantInt };
- enum EntryType EntryKind;
-
- union {
- int64_t Int;
- const ConstantFP *CFP;
- const ConstantInt *CIP;
- } Constants;
-
- // The location in the machine frame.
- MachineLocation Loc;
-
- // The variable to which this location entry corresponds.
- const MDNode *Variable;
-
- // The compile unit to which this location entry is referenced by.
- const DwarfCompileUnit *Unit;
-
-public:
- DebugLocEntry() : Begin(0), End(0), Variable(0), Unit(0) {
- Constants.Int = 0;
- }
- DebugLocEntry(const MCSymbol *B, const MCSymbol *E, MachineLocation &L,
- const MDNode *V, const DwarfCompileUnit *U)
- : Begin(B), End(E), Loc(L), Variable(V), Unit(U) {
- Constants.Int = 0;
- EntryKind = E_Location;
- }
- DebugLocEntry(const MCSymbol *B, const MCSymbol *E, int64_t i,
- const DwarfCompileUnit *U)
- : Begin(B), End(E), Variable(0), Unit(U) {
- Constants.Int = i;
- EntryKind = E_Integer;
- }
- DebugLocEntry(const MCSymbol *B, const MCSymbol *E, const ConstantFP *FPtr,
- const DwarfCompileUnit *U)
- : Begin(B), End(E), Variable(0), Unit(U) {
- Constants.CFP = FPtr;
- EntryKind = E_ConstantFP;
- }
- DebugLocEntry(const MCSymbol *B, const MCSymbol *E, const ConstantInt *IPtr,
- const DwarfCompileUnit *U)
- : Begin(B), End(E), Variable(0), Unit(U) {
- Constants.CIP = IPtr;
- EntryKind = E_ConstantInt;
- }
-
- /// \brief 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() const { return Begin == 0 && End == 0; }
- bool Merge(const DebugLocEntry &Next) {
- if (Begin &&
- Loc == Next.Loc &&
- EntryKind == Next.EntryKind &&
- (!isInt() || getInt() == Next.getInt()) &&
- (!isConstantInt() || getConstantInt() == Next.getConstantInt()) &&
- (!isConstantFP() || getConstantFP() == Next.getConstantFP()) &&
- End == Next.Begin) {
- End = Next.End;
- return true;
- }
- return false;
- }
- 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() const { return Constants.Int; }
- const ConstantFP *getConstantFP() const { return Constants.CFP; }
- const ConstantInt *getConstantInt() const { return Constants.CIP; }
- const MDNode *getVariable() const { return Variable; }
- const MCSymbol *getBeginSym() const { return Begin; }
- const MCSymbol *getEndSym() const { return End; }
- const DwarfCompileUnit *getCU() const { return Unit; }
- MachineLocation getLoc() const { return Loc; }
-};
-
//===----------------------------------------------------------------------===//
/// \brief This class is used to track local variable information.
class DbgVariable {