#include "DwarfAccelTable.h"
#include "DwarfFile.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/DenseSet.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallPtrSet.h"
/// - Variables that are described by multiple MMI table entries have multiple
/// expressions and frame indices.
class DbgVariable {
- DIVariable Var; /// Variable Descriptor.
+ DIVariable Var; /// Variable Descriptor.
+ DILocation IA; /// Inlined at location.
SmallVector<DIExpression, 1> Expr; /// Complex address location expression.
DIE *TheDIE; /// Variable DIE.
unsigned DotDebugLocOffset; /// Offset in DotDebugLocEntries.
public:
/// Construct a DbgVariable from a DIVariable.
- DbgVariable(DIVariable V, DIExpression E, DwarfDebug *DD, int FI = ~0)
- : Var(V), Expr(1, E), TheDIE(nullptr), DotDebugLocOffset(~0U),
- MInsn(nullptr), DD(DD) {
+ DbgVariable(DIVariable V, DILocation IA, DIExpression E, DwarfDebug *DD,
+ int FI = ~0)
+ : Var(V), IA(IA), Expr(1, E), TheDIE(nullptr), DotDebugLocOffset(~0U),
+ MInsn(nullptr), DD(DD) {
FrameIndex.push_back(FI);
- assert(Var.Verify());
assert(!E || E->isValid());
}
/// AbstractVar may be NULL.
DbgVariable(const MachineInstr *DbgValue, DwarfDebug *DD)
: Var(DbgValue->getDebugVariable()),
+ IA(DbgValue->getDebugLoc() ? DbgValue->getDebugLoc()->getInlinedAt()
+ : nullptr),
Expr(1, DbgValue->getDebugExpression()), TheDIE(nullptr),
DotDebugLocOffset(~0U), MInsn(DbgValue), DD(DD) {
FrameIndex.push_back(~0);
+ if (MDLocation *Loc = DbgValue->getDebugLoc())
+ IA = Loc->getInlinedAt();
}
// Accessors.
DIVariable getVariable() const { return Var; }
+ DILocation getInlinedAt() const { return IA; }
const ArrayRef<DIExpression> getExpression() const { return Expr; }
void setDIE(DIE &D) { TheDIE = &D; }
DIE *getDIE() const { return TheDIE; }
void setDotDebugLocOffset(unsigned O) { DotDebugLocOffset = O; }
unsigned getDotDebugLocOffset() const { return DotDebugLocOffset; }
- StringRef getName() const { return Var.getName(); }
+ StringRef getName() const { return Var->getName(); }
const MachineInstr *getMInsn() const { return MInsn; }
const ArrayRef<int> getFrameIndex() const { return FrameIndex; }
assert( DotDebugLocOffset == ~0U && !MInsn && "not an MMI entry");
assert(V.DotDebugLocOffset == ~0U && !V.MInsn && "not an MMI entry");
assert(V.Var == Var && "conflicting DIVariable");
+ assert(V.IA == IA && "conflicting inlined-at location");
if (V.getFrameIndex().back() != ~0) {
auto E = V.getExpression();
FrameIndex.append(FI.begin(), FI.end());
}
assert(Expr.size() > 1
- ? std::all_of(Expr.begin(), Expr.end(),
- [](DIExpression &E) { return E.isBitPiece(); })
- : (true && "conflicting locations for variable"));
+ ? std::all_of(Expr.begin(), Expr.end(),
+ [](DIExpression &E) { return E->isBitPiece(); })
+ : (true && "conflicting locations for variable"));
}
// Translate tag to proper Dwarf tag.
dwarf::Tag getTag() const {
- if (Var.getTag() == dwarf::DW_TAG_arg_variable)
+ if (Var->getTag() == dwarf::DW_TAG_arg_variable)
return dwarf::DW_TAG_formal_parameter;
return dwarf::DW_TAG_variable;
}
/// \brief Return true if DbgVariable is artificial.
bool isArtificial() const {
- if (Var.isArtificial())
+ if (Var->isArtificial())
return true;
- if (getType().isArtificial())
+ if (getType()->isArtificial())
return true;
return false;
}
bool isObjectPointer() const {
- if (Var.isObjectPointer())
+ if (Var->isObjectPointer())
return true;
- if (getType().isObjectPointer())
+ if (getType()->isObjectPointer())
return true;
return false;
}
bool variableHasComplexAddress() const {
- assert(Var.isVariable() && "Invalid complex DbgVariable!");
+ assert(Var && "Invalid complex DbgVariable!");
assert(Expr.size() == 1 &&
"variableHasComplexAddress() invoked on multi-FI variable");
- return Expr.back().getNumElements() > 0;
+ return Expr.back()->getNumElements() > 0;
}
bool isBlockByrefVariable() const;
DIType getType() const;
// table for the same directory as DW_AT_comp_dir.
StringRef CompilationDir;
- // Counter for assigning globally unique IDs for ranges.
- unsigned GlobalRangeCount;
-
// Holder for the file specific debug information.
DwarfFile InfoHolder;
return InfoHolder.getUnits();
}
+ typedef DbgValueHistoryMap::InlinedVariable InlinedVariable;
+
/// \brief Find abstract variable associated with Var.
- DbgVariable *getExistingAbstractVariable(const DIVariable &DV,
+ DbgVariable *getExistingAbstractVariable(InlinedVariable IV,
DIVariable &Cleansed);
- DbgVariable *getExistingAbstractVariable(const DIVariable &DV);
+ DbgVariable *getExistingAbstractVariable(InlinedVariable IV);
void createAbstractVariable(const DIVariable &DV, LexicalScope *Scope);
- void ensureAbstractVariableIsCreated(const DIVariable &Var,
+ void ensureAbstractVariableIsCreated(InlinedVariable Var,
const MDNode *Scope);
- void ensureAbstractVariableIsCreatedIfScoped(const DIVariable &Var,
+ void ensureAbstractVariableIsCreatedIfScoped(InlinedVariable Var,
const MDNode *Scope);
/// \brief Construct a DIE for this abstract scope.
/// \brief Emit the abbreviation section.
void emitAbbreviations();
- /// \brief Emit the last address of the section and the end of
- /// the line matrix.
- void emitEndOfLineMatrix(unsigned SectionEnd);
-
/// \brief Emit a specified accelerator table.
void emitAccel(DwarfAccelTable &Accel, const MCSection *Section,
StringRef TableName);
/// \brief Populate LexicalScope entries with variables' info.
void collectVariableInfo(DwarfCompileUnit &TheCU, DISubprogram SP,
- SmallPtrSetImpl<const MDNode *> &ProcessedVars);
+ DenseSet<InlinedVariable> &ProcessedVars);
/// \brief Build the location list for all DBG_VALUEs in the
/// function that describe the same variable.
/// \brief Collect variable information from the side table maintained
/// by MMI.
- void collectVariableInfoFromMMITable(SmallPtrSetImpl<const MDNode *> &P);
+ void collectVariableInfoFromMMITable(DenseSet<InlinedVariable> &P);
/// \brief Ensure that a label will be emitted before MI.
void requestLabelBeforeInsn(const MachineInstr *MI) {
template <typename T> T resolve(DIRef<T> Ref) const {
return Ref.resolve(TypeIdentifierMap);
}
+ template <typename T> T *resolve(TypedDebugNodeRef<T> Ref) const {
+ return Ref.resolve(TypeIdentifierMap);
+ }
/// \brief Return the TypeIdentifierMap.
const DITypeIdentifierMap &getTypeIdentifierMap() const {
/// \brief Return Label immediately following the instruction.
MCSymbol *getLabelAfterInsn(const MachineInstr *MI);
- // FIXME: Consider rolling ranges up into DwarfDebug since we use a single
- // range_base anyway, so there's no need to keep them as separate per-CU range
- // lists. (though one day we might end up with a range.dwo section, in which
- // case it'd go to DwarfFile)
- unsigned getNextRangeNumber() { return GlobalRangeCount++; }
-
// FIXME: Sink these functions down into DwarfFile/Dwarf*Unit.
SmallPtrSet<const MDNode *, 16> &getProcessedSPNodes() {
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