#ifndef CODEGEN_ASMPRINTER_DWARFDEBUG_H__
#define CODEGEN_ASMPRINTER_DWARFDEBUG_H__
+#include "AsmPrinterHandler.h"
#include "DIE.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
namespace llvm {
+class Unit;
class CompileUnit;
class ConstantInt;
class ConstantFP;
std::vector<DIEAbbrev *> &Abbreviations;
// A pointer to all units in the section.
- SmallVector<CompileUnit *, 1> CUs;
+ SmallVector<Unit *, 1> CUs;
// Collection of strings for this unit and assorted symbols.
// A String->Symbol mapping of strings used by indirect
NextStringPoolNumber(0), StringPref(Pref), AddressPool(),
NextAddrPoolNumber(0) {}
+ ~DwarfUnits();
+
+ const SmallVectorImpl<Unit *> &getUnits() { return CUs; }
+
/// \brief Compute the size and offset of a DIE given an incoming Offset.
unsigned computeSizeAndOffset(DIE *Die, unsigned Offset);
void assignAbbrevNumber(DIEAbbrev &Abbrev);
/// \brief Add a unit to the list of CUs.
- void addUnit(CompileUnit *CU) { CUs.push_back(CU); }
+ void addUnit(Unit *CU) { CUs.push_back(CU); }
/// \brief Emit all of the units to the section listed with the given
/// abbreviation section.
};
/// \brief Collects and handles dwarf debug information.
-class DwarfDebug {
+class DwarfDebug : public AsmPrinterHandler {
// Target of Dwarf emission.
AsmPrinter *Asm;
DbgValueHistoryMap;
DbgValueHistoryMap DbgValues;
- SmallVector<const MCSymbol *, 8> DebugRangeSymbols;
-
// Previous instruction's location information. This is used to determine
// label location to indicate scope boundries in dwarf debug info.
DebugLoc PrevInstLoc;
// body.
DebugLoc PrologEndLoc;
+ // If nonnull, stores the current machine function we're processing.
+ const MachineFunction *CurFn;
+
+ // If nonnull, stores the current machine instruction we're processing.
+ const MachineInstr *CurMI;
+
// Section Symbols: these are assembler temporary labels that are emitted at
// the beginning of each supported dwarf section. These are used to form
// section offsets and are created by EmitSectionLabels.
// Counter for assigning globally unique IDs for CUs.
unsigned GlobalCUIndexCount;
+ // Counter for assigning globally unique IDs for ranges.
+ unsigned GlobalRangeCount;
+
// Holder for the file specific debug information.
DwarfUnits InfoHolder;
ImportedEntityMap;
ImportedEntityMap ScopesWithImportedEntities;
- // Holder for types that are going to be extracted out into a type unit.
- DenseMap<const MDNode *, std::pair<uint64_t, SmallVectorImpl<DIE*>* > > TypeUnits;
+ // Map from type MDNodes to a pair used as a union. If the pointer is
+ // non-null, proxy DIEs in CUs meant to reference this type should be stored
+ // in the vector. The hash will be added to these DIEs once it is computed. If
+ // the pointer is null, the hash is immediately available in the uint64_t and
+ // should be directly used for proxy DIEs.
+ DenseMap<const MDNode *, std::pair<uint64_t, SmallVectorImpl<DIE *> *> >
+ TypeUnits;
// Whether to emit the pubnames/pubtypes sections.
bool HasDwarfPubSections;
// Version of dwarf we're emitting.
unsigned DwarfVersion;
+ // Maps from a type identifier to the actual MDNode.
+ DITypeIdentifierMap TypeIdentifierMap;
+
// DWARF5 Experimental Options
bool HasDwarfAccelTables;
bool HasSplitDwarf;
// original object file, rather than things that are meant
// to be in the .dwo sections.
- // The CUs left in the original object file for separated debug info.
- SmallVector<CompileUnit *, 1> SkeletonCUs;
-
// Used to uniquely define abbreviations for the skeleton emission.
FoldingSet<DIEAbbrev> SkeletonAbbrevSet;
// Holder for the skeleton information.
DwarfUnits SkeletonHolder;
- // Maps from a type identifier to the actual MDNode.
- DITypeIdentifierMap TypeIdentifierMap;
-
-private:
-
void addScopeVariable(LexicalScope *LS, DbgVariable *Var);
+ const SmallVectorImpl<Unit *> &getUnits() { return InfoHolder.getUnits(); }
+
/// \brief Find abstract variable associated with Var.
DbgVariable *findAbstractVariable(DIVariable &Var, DebugLoc Loc);
/// variables.
DIE *updateSubprogramScopeDIE(CompileUnit *SPCU, DISubprogram SP);
+ /// \brief A helper function to check whether the DIE for a given Scope is
+ /// going to be null.
+ bool isLexicalScopeDIENull(LexicalScope *Scope);
+
+ /// \brief A helper function to construct a RangeSpanList for a given
+ /// lexical scope.
+ void addScopeRangeList(CompileUnit *TheCU, DIE *ScopeDIE,
+ const SmallVectorImpl<InsnRange> &Range);
+
/// \brief Construct new DW_TAG_lexical_block for this scope and
/// attach DW_AT_low_pc/DW_AT_high_pc labels.
DIE *constructLexicalScopeDIE(CompileUnit *TheCU, LexicalScope *Scope);
- /// A helper function to check whether the DIE for a given Scope is going
- /// to be null.
- bool isLexicalScopeDIENull(LexicalScope *Scope);
/// \brief This scope represents inlined body of a function. Construct
/// DIE to represent this concrete inlined copy of the function.
/// \brief If Var is an current function argument that add it in
/// CurrentFnArguments list.
- bool addCurrentFnArgument(const MachineFunction *MF,
- DbgVariable *Var, LexicalScope *Scope);
+ bool addCurrentFnArgument(DbgVariable *Var, LexicalScope *Scope);
/// \brief Populate LexicalScope entries with variables' info.
- void collectVariableInfo(const MachineFunction *,
- SmallPtrSet<const MDNode *, 16> &ProcessedVars);
+ void collectVariableInfo(SmallPtrSet<const MDNode *, 16> &ProcessedVars);
/// \brief Collect variable information from the side table maintained
/// by MMI.
- void collectVariableInfoFromMMITable(const MachineFunction * MF,
- SmallPtrSet<const MDNode *, 16> &P);
+ void collectVariableInfoFromMMITable(SmallPtrSet<const MDNode *, 16> &P);
/// \brief Ensure that a label will be emitted before MI.
void requestLabelBeforeInsn(const MachineInstr *MI) {
void beginInstruction(const MachineInstr *MI);
/// \brief Process end of an instruction.
- void endInstruction(const MachineInstr *MI);
+ void endInstruction();
/// \brief Add a DIE to the set of types that we're going to pull into
/// type units.
- void addTypeUnitType(DIE *Die, DICompositeType CTy);
+ void addTypeUnitType(uint16_t Language, DIE *Die, DICompositeType CTy);
/// \brief Add a label so that arange data can be generated for it.
void addArangeLabel(SymbolCU SCU) { ArangeLabels.push_back(SCU); }
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