/// resolve - Look in the DwarfDebug map for the MDNode that
/// corresponds to the reference.
-template <typename T> T DbgVariable::resolve(DIRef<T> Ref) const {
+template <typename T> T *DbgVariable::resolve(TypedDebugNodeRef<T> Ref) const {
return DD->resolve(Ref);
}
}
DIType DbgVariable::getType() const {
- DIType Ty = Var->getType().resolve(DD->getTypeIdentifierMap());
+ MDType *Ty = Var->getType().resolve(DD->getTypeIdentifierMap());
// FIXME: isBlockByrefVariable should be reformulated in terms of complex
// addresses instead.
if (Ty->isBlockByrefStruct()) {
have a DW_AT_location that tells the debugger how to unwind through
the pointers and __Block_byref_x_VarName struct to find the actual
value of the variable. The function addBlockByrefType does this. */
- DIType subType = Ty;
- uint16_t tag = Ty.getTag();
+ MDType *subType = Ty;
+ uint16_t tag = Ty->getTag();
if (tag == dwarf::DW_TAG_pointer_type)
subType = resolve(DITypeRef(cast<MDDerivedType>(Ty)->getBaseType()));
- DIArray Elements(cast<MDCompositeTypeBase>(subType)->getElements());
+ auto Elements = cast<MDCompositeTypeBase>(subType)->getElements();
for (unsigned i = 0, N = Elements.size(); i < N; ++i) {
- DIDerivedType DT = cast<MDDerivedTypeBase>(Elements[i]);
- if (getName() == DT.getName())
- return (resolve(DT.getTypeDerivedFrom()));
+ auto *DT = cast<MDDerivedTypeBase>(Elements[i]);
+ if (getName() == DT->getName())
+ return resolve(DITypeRef(DT->getBaseType()));
}
}
return Ty;
return false;
if (isa<MDSubprogram>(Context))
return true;
- if (DIType T = dyn_cast<MDType>(Context))
- return isSubprogramContext(resolve(T.getContext()));
+ if (auto *T = dyn_cast<MDType>(Context))
+ return isSubprogramContext(resolve(T->getScope()));
return false;
}
// Create new DwarfCompileUnit for the given metadata node with tag
// DW_TAG_compile_unit.
DwarfCompileUnit &DwarfDebug::constructDwarfCompileUnit(DICompileUnit DIUnit) {
- StringRef FN = DIUnit.getFilename();
- CompilationDir = DIUnit.getDirectory();
+ StringRef FN = DIUnit->getFilename();
+ CompilationDir = DIUnit->getDirectory();
auto OwnedUnit = make_unique<DwarfCompileUnit>(
InfoHolder.getUnits().size(), DIUnit, Asm, this, &InfoHolder);
Asm->OutStreamer.getContext().setMCLineTableCompilationDir(
NewCU.getUniqueID(), CompilationDir);
- NewCU.addString(Die, dwarf::DW_AT_producer, DIUnit.getProducer());
+ NewCU.addString(Die, dwarf::DW_AT_producer, DIUnit->getProducer());
NewCU.addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data2,
- DIUnit.getLanguage());
+ DIUnit->getSourceLanguage());
NewCU.addString(Die, dwarf::DW_AT_name, FN);
if (!useSplitDwarf()) {
addGnuPubAttributes(NewCU, Die);
}
- if (DIUnit.isOptimized())
+ if (DIUnit->isOptimized())
NewCU.addFlag(Die, dwarf::DW_AT_APPLE_optimized);
- StringRef Flags = DIUnit.getFlags();
+ StringRef Flags = DIUnit->getFlags();
if (!Flags.empty())
NewCU.addString(Die, dwarf::DW_AT_APPLE_flags, Flags);
- if (unsigned RVer = DIUnit.getRunTimeVersion())
+ if (unsigned RVer = DIUnit->getRuntimeVersion())
NewCU.addUInt(Die, dwarf::DW_AT_APPLE_major_runtime_vers,
dwarf::DW_FORM_data1, RVer);
for (DIType Ty : CUNode->getEnumTypes()) {
// The enum types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
- DIType UniqueTy = cast<MDType>(resolve(Ty.getRef()));
+ DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
CU.getOrCreateTypeDIE(UniqueTy);
}
for (DIType Ty : CUNode->getRetainedTypes()) {
// The retained types array by design contains pointers to
// MDNodes rather than DIRefs. Unique them here.
- DIType UniqueTy = cast<MDType>(resolve(Ty.getRef()));
+ DIType UniqueTy = cast<MDType>(resolve(Ty->getRef()));
CU.getOrCreateTypeDIE(UniqueTy);
}
// Emit imported_modules last so that the relevant context is already
// DIE::getUnit isn't simple - it walks parent pointers, etc.
DwarfCompileUnit *Unit = lookupUnit(VariableDie->getUnit());
assert(Unit);
- DbgVariable *AbsVar = getExistingAbstractVariable(Var->getVariable());
+ DbgVariable *AbsVar = getExistingAbstractVariable(
+ InlinedVariable(Var->getVariable(), Var->getInlinedAt()));
if (AbsVar && AbsVar->getDIE()) {
Unit->addDIEEntry(*VariableDie, dwarf::DW_AT_abstract_origin,
*AbsVar->getDIE());
}
// Find abstract variable, if any, associated with Var.
-DbgVariable *DwarfDebug::getExistingAbstractVariable(const DIVariable &DV,
+DbgVariable *DwarfDebug::getExistingAbstractVariable(InlinedVariable IV,
DIVariable &Cleansed) {
- LLVMContext &Ctx = DV->getContext();
// More then one inlined variable corresponds to one abstract variable.
- // FIXME: This duplication of variables when inlining should probably be
- // removed. It's done to allow each DIVariable to describe its location
- // because the DebugLoc on the dbg.value/declare isn't accurate. We should
- // make it accurate then remove this duplication/cleansing stuff.
- Cleansed = cleanseInlinedVariable(DV, Ctx);
+ Cleansed = IV.first;
auto I = AbstractVariables.find(Cleansed);
if (I != AbstractVariables.end())
return I->second.get();
return nullptr;
}
-DbgVariable *DwarfDebug::getExistingAbstractVariable(const DIVariable &DV) {
+DbgVariable *DwarfDebug::getExistingAbstractVariable(InlinedVariable IV) {
DIVariable Cleansed;
- return getExistingAbstractVariable(DV, Cleansed);
+ return getExistingAbstractVariable(IV, Cleansed);
}
void DwarfDebug::createAbstractVariable(const DIVariable &Var,
LexicalScope *Scope) {
- auto AbsDbgVariable = make_unique<DbgVariable>(Var, DIExpression(), this);
+ auto AbsDbgVariable =
+ make_unique<DbgVariable>(Var, nullptr, DIExpression(), this);
InfoHolder.addScopeVariable(Scope, AbsDbgVariable.get());
AbstractVariables[Var] = std::move(AbsDbgVariable);
}
-void DwarfDebug::ensureAbstractVariableIsCreated(const DIVariable &DV,
+void DwarfDebug::ensureAbstractVariableIsCreated(InlinedVariable IV,
const MDNode *ScopeNode) {
- DIVariable Cleansed = DV;
- if (getExistingAbstractVariable(DV, Cleansed))
+ DIVariable Cleansed;
+ if (getExistingAbstractVariable(IV, Cleansed))
return;
createAbstractVariable(Cleansed, LScopes.getOrCreateAbstractScope(
cast<MDLocalScope>(ScopeNode)));
}
-void
-DwarfDebug::ensureAbstractVariableIsCreatedIfScoped(const DIVariable &DV,
- const MDNode *ScopeNode) {
- DIVariable Cleansed = DV;
- if (getExistingAbstractVariable(DV, Cleansed))
+void DwarfDebug::ensureAbstractVariableIsCreatedIfScoped(
+ InlinedVariable IV, const MDNode *ScopeNode) {
+ DIVariable Cleansed;
+ if (getExistingAbstractVariable(IV, Cleansed))
return;
if (LexicalScope *Scope =
// Collect variable information from side table maintained by MMI.
void DwarfDebug::collectVariableInfoFromMMITable(
- SmallPtrSetImpl<const MDNode *> &Processed) {
+ DenseSet<InlinedVariable> &Processed) {
for (const auto &VI : MMI->getVariableDbgInfo()) {
if (!VI.Var)
continue;
- Processed.insert(VI.Var);
+ assert(VI.Var->isValidLocationForIntrinsic(VI.Loc) &&
+ "Expected inlined-at fields to agree");
+
+ InlinedVariable Var(VI.Var, VI.Loc->getInlinedAt());
+ Processed.insert(Var);
LexicalScope *Scope = LScopes.findLexicalScope(VI.Loc);
// If variable scope is not found then skip this variable.
if (!Scope)
continue;
- DIVariable DV = cast<MDLocalVariable>(VI.Var);
- assert(DV->isValidLocationForIntrinsic(VI.Loc) &&
- "Expected inlined-at fields to agree");
DIExpression Expr = cast_or_null<MDExpression>(VI.Expr);
- ensureAbstractVariableIsCreatedIfScoped(DV, Scope->getScopeNode());
- auto RegVar = make_unique<DbgVariable>(DV, Expr, this, VI.Slot);
+ ensureAbstractVariableIsCreatedIfScoped(Var, Scope->getScopeNode());
+ auto RegVar =
+ make_unique<DbgVariable>(Var.first, Var.second, Expr, this, VI.Slot);
if (InfoHolder.addScopeVariable(Scope, RegVar.get()))
ConcreteVariables.push_back(std::move(RegVar));
}
// Get .debug_loc entry for the instruction range starting at MI.
static DebugLocEntry::Value getDebugLocValue(const MachineInstr *MI) {
- const MDNode *Expr = MI->getDebugExpression();
- const MDNode *Var = MI->getDebugVariable();
+ const MDExpression *Expr = MI->getDebugExpression();
assert(MI->getNumOperands() == 4);
if (MI->getOperand(0).isReg()) {
MLoc.set(MI->getOperand(0).getReg());
else
MLoc.set(MI->getOperand(0).getReg(), MI->getOperand(1).getImm());
- return DebugLocEntry::Value(Var, Expr, MLoc);
+ return DebugLocEntry::Value(Expr, MLoc);
}
if (MI->getOperand(0).isImm())
- return DebugLocEntry::Value(Var, Expr, MI->getOperand(0).getImm());
+ return DebugLocEntry::Value(Expr, MI->getOperand(0).getImm());
if (MI->getOperand(0).isFPImm())
- return DebugLocEntry::Value(Var, Expr, MI->getOperand(0).getFPImm());
+ return DebugLocEntry::Value(Expr, MI->getOperand(0).getFPImm());
if (MI->getOperand(0).isCImm())
- return DebugLocEntry::Value(Var, Expr, MI->getOperand(0).getCImm());
+ return DebugLocEntry::Value(Expr, MI->getOperand(0).getCImm());
llvm_unreachable("Unexpected 4-operand DBG_VALUE instruction!");
}
DEBUG({
dbgs() << CurEntry->getValues().size() << " Values:\n";
for (auto Value : CurEntry->getValues()) {
- Value.getVariable()->dump();
Value.getExpression()->dump();
}
dbgs() << "-----\n";
// Find variables for each lexical scope.
-void
-DwarfDebug::collectVariableInfo(DwarfCompileUnit &TheCU, DISubprogram SP,
- SmallPtrSetImpl<const MDNode *> &Processed) {
+void DwarfDebug::collectVariableInfo(DwarfCompileUnit &TheCU, DISubprogram SP,
+ DenseSet<InlinedVariable> &Processed) {
// Grab the variable info that was squirreled away in the MMI side-table.
collectVariableInfoFromMMITable(Processed);
for (const auto &I : DbgValues) {
- DIVariable DV = cast<MDLocalVariable>(I.first);
- if (Processed.count(DV))
+ InlinedVariable IV = I.first;
+ if (Processed.count(IV))
continue;
- // Instruction ranges, specifying where DV is accessible.
+ // Instruction ranges, specifying where IV is accessible.
const auto &Ranges = I.second;
if (Ranges.empty())
continue;
LexicalScope *Scope = nullptr;
- if (MDLocation *IA = DV->getInlinedAt())
- Scope = LScopes.findInlinedScope(DV->getScope(), IA);
+ if (const MDLocation *IA = IV.second)
+ Scope = LScopes.findInlinedScope(IV.first->getScope(), IA);
else
- Scope = LScopes.findLexicalScope(DV->getScope());
+ Scope = LScopes.findLexicalScope(IV.first->getScope());
// If variable scope is not found then skip this variable.
if (!Scope)
continue;
- Processed.insert(DV);
+ Processed.insert(IV);
const MachineInstr *MInsn = Ranges.front().first;
assert(MInsn->isDebugValue() && "History must begin with debug value");
- ensureAbstractVariableIsCreatedIfScoped(DV, Scope->getScopeNode());
+ ensureAbstractVariableIsCreatedIfScoped(IV, Scope->getScopeNode());
ConcreteVariables.push_back(make_unique<DbgVariable>(MInsn, this));
DbgVariable *RegVar = ConcreteVariables.back().get();
InfoHolder.addScopeVariable(Scope, RegVar);
// Build the location list for this variable.
buildLocationList(LocList.List, Ranges);
+
+ // If the variable has an MDBasicType, extract it. Basic types cannot have
+ // unique identifiers, so don't bother resolving the type with the
+ // identifier map.
+ const MDBasicType *BT = dyn_cast<MDBasicType>(
+ static_cast<const Metadata *>(IV.first->getType()));
+
// Finalize the entry by lowering it into a DWARF bytestream.
for (auto &Entry : LocList.List)
- Entry.finalize(*Asm, TypeIdentifierMap);
+ Entry.finalize(*Asm, BT);
}
// Collect info for variables that were optimized out.
for (DIVariable DV : SP->getVariables()) {
- if (!Processed.insert(DV).second)
+ if (!Processed.insert(InlinedVariable(DV, nullptr)).second)
continue;
if (LexicalScope *Scope = LScopes.findLexicalScope(DV->getScope())) {
- ensureAbstractVariableIsCreatedIfScoped(DV, Scope->getScopeNode());
+ ensureAbstractVariableIsCreatedIfScoped(InlinedVariable(DV, nullptr),
+ Scope->getScopeNode());
DIExpression NoExpr;
- ConcreteVariables.push_back(make_unique<DbgVariable>(DV, NoExpr, this));
+ ConcreteVariables.push_back(
+ make_unique<DbgVariable>(DV, nullptr, NoExpr, this));
InfoHolder.addScopeVariable(Scope, ConcreteVariables.back().get());
}
}
DISubprogram SP = cast<MDSubprogram>(FnScope->getScopeNode());
DwarfCompileUnit &TheCU = *SPMap.lookup(SP);
- SmallPtrSet<const MDNode *, 16> ProcessedVars;
+ DenseSet<InlinedVariable> ProcessedVars;
collectVariableInfo(TheCU, SP, ProcessedVars);
// Add the range of this function to the list of ranges for the CU.
// Under -gmlt, skip building the subprogram if there are no inlined
// subroutines inside it.
- if (TheCU.getCUNode().getEmissionKind() == DIBuilder::LineTablesOnly &&
+ if (TheCU.getCUNode()->getEmissionKind() == DIBuilder::LineTablesOnly &&
LScopes.getAbstractScopesList().empty() && !IsDarwin) {
assert(InfoHolder.getScopeVariables().empty());
assert(DbgValues.empty());
DISubprogram SP = cast<MDSubprogram>(AScope->getScopeNode());
// Collect info for variables that were optimized out.
for (DIVariable DV : SP->getVariables()) {
- if (!ProcessedVars.insert(DV).second)
+ if (!ProcessedVars.insert(InlinedVariable(DV, nullptr)).second)
continue;
- ensureAbstractVariableIsCreated(DV, DV->getScope());
+ ensureAbstractVariableIsCreated(InlinedVariable(DV, nullptr),
+ DV->getScope());
assert(LScopes.getAbstractScopesList().size() == NumAbstractScopes
&& "ensureAbstractVariableIsCreated inserted abstract scopes");
}
StringRef Dir;
unsigned Src = 1;
unsigned Discriminator = 0;
- if (DIScope Scope = cast_or_null<MDScope>(S)) {
- Fn = Scope.getFilename();
- Dir = Scope.getDirectory();
+ if (auto *Scope = cast_or_null<MDScope>(S)) {
+ Fn = Scope->getFilename();
+ Dir = Scope->getDirectory();
if (auto *LBF = dyn_cast<MDLexicalBlockFile>(Scope))
Discriminator = LBF->getDiscriminator();
Streamer.EmitInt8(Byte, Comment != End ? *(Comment++) : "");
}
-static void emitDebugLocValue(const AsmPrinter &AP,
- const DITypeIdentifierMap &TypeIdentifierMap,
+static void emitDebugLocValue(const AsmPrinter &AP, const MDBasicType *BT,
ByteStreamer &Streamer,
const DebugLocEntry::Value &Value,
unsigned PieceOffsetInBits) {
- DIVariable DV = Value.getVariable();
DebugLocDwarfExpression DwarfExpr(*AP.MF->getSubtarget().getRegisterInfo(),
AP.getDwarfDebug()->getDwarfVersion(),
Streamer);
// Regular entry.
if (Value.isInt()) {
- MDType *T = DV->getType().resolve(TypeIdentifierMap);
- auto *B = dyn_cast<MDBasicType>(T);
- if (B && (B->getEncoding() == dwarf::DW_ATE_signed ||
- B->getEncoding() == dwarf::DW_ATE_signed_char))
+ if (BT && (BT->getEncoding() == dwarf::DW_ATE_signed ||
+ BT->getEncoding() == dwarf::DW_ATE_signed_char))
DwarfExpr.AddSignedConstant(Value.getInt());
else
DwarfExpr.AddUnsignedConstant(Value.getInt());
// FIXME: ^
}
-
-void DebugLocEntry::finalize(const AsmPrinter &AP,
- const DITypeIdentifierMap &TypeIdentifierMap) {
+void DebugLocEntry::finalize(const AsmPrinter &AP, const MDBasicType *BT) {
BufferByteStreamer Streamer(DWARFBytes, Comments);
const DebugLocEntry::Value Value = Values[0];
if (Value.isBitPiece()) {
}
Offset += PieceSize;
- emitDebugLocValue(AP, TypeIdentifierMap, Streamer, Piece, PieceOffset);
+ emitDebugLocValue(AP, BT, Streamer, Piece, PieceOffset);
}
} else {
assert(Values.size() == 1 && "only pieces may have >1 value");
- emitDebugLocValue(AP, TypeIdentifierMap, Streamer, Value, 0);
+ emitDebugLocValue(AP, BT, Streamer, Value, 0);
}
}
void DwarfDebug::initSkeletonUnit(const DwarfUnit &U, DIE &Die,
std::unique_ptr<DwarfUnit> NewU) {
NewU->addString(Die, dwarf::DW_AT_GNU_dwo_name,
- U.getCUNode().getSplitDebugFilename());
+ U.getCUNode()->getSplitDebugFilename());
if (!CompilationDir.empty())
NewU->addString(Die, dwarf::DW_AT_comp_dir, CompilationDir);
if (!useSplitDwarf())
return nullptr;
if (SingleCU)
- SplitTypeUnitFileTable.setCompilationDir(CU.getCUNode().getDirectory());
+ SplitTypeUnitFileTable.setCompilationDir(CU.getCUNode()->getDirectory());
return &SplitTypeUnitFileTable;
}
projects / oota-llvm.git / blobdiff