using namespace llvm;
/// CompileUnit - Compile unit constructor.
-CompileUnit::CompileUnit(unsigned UID, unsigned L, DIE *D, const MDNode *N,
- AsmPrinter *A, DwarfDebug *DW, DwarfUnits *DWU)
- : UniqueID(UID), Language(L), CUDie(D), Asm(A), DD(DW), DU(DWU),
- IndexTyDie(0), DebugInfoOffset(0) {
+CompileUnit::CompileUnit(unsigned UID, DIE *D, const MDNode *N, AsmPrinter *A,
+ DwarfDebug *DW, DwarfUnits *DWU)
+ : UniqueID(UID), Node(N), CUDie(D), Asm(A), DD(DW), DU(DWU), IndexTyDie(0),
+ DebugInfoOffset(0) {
DIEIntegerOne = new (DIEValueAllocator) DIEInteger(1);
insertDIE(N, D);
}
/// getDefaultLowerBound - Return the default lower bound for an array. If the
/// DWARF version doesn't handle the language, return -1.
int64_t CompileUnit::getDefaultLowerBound() const {
- switch (Language) {
+ switch (DICompileUnit(Node).getLanguage()) {
default:
break;
}
/// addFlag - Add a flag that is true.
-void CompileUnit::addFlag(DIE *Die, unsigned Attribute) {
+void CompileUnit::addFlag(DIE *Die, uint16_t Attribute) {
if (!DD->useDarwinGDBCompat())
Die->addValue(Attribute, dwarf::DW_FORM_flag_present,
DIEIntegerOne);
/// addUInt - Add an unsigned integer attribute data and value.
///
-void CompileUnit::addUInt(DIE *Die, unsigned Attribute,
- unsigned Form, uint64_t Integer) {
+void CompileUnit::addUInt(DIE *Die, uint16_t Attribute,
+ uint16_t Form, uint64_t Integer) {
if (!Form) Form = DIEInteger::BestForm(false, Integer);
DIEValue *Value = Integer == 1 ?
DIEIntegerOne : new (DIEValueAllocator) DIEInteger(Integer);
/// addSInt - Add an signed integer attribute data and value.
///
-void CompileUnit::addSInt(DIE *Die, unsigned Attribute,
- unsigned Form, int64_t Integer) {
+void CompileUnit::addSInt(DIE *Die, uint16_t Attribute,
+ uint16_t Form, int64_t Integer) {
if (!Form) Form = DIEInteger::BestForm(true, Integer);
DIEValue *Value = new (DIEValueAllocator) DIEInteger(Integer);
Die->addValue(Attribute, Form, Value);
/// more predictable sizes. In the case of split dwarf we emit an index
/// into another table which gets us the static offset into the string
/// table.
-void CompileUnit::addString(DIE *Die, unsigned Attribute, StringRef String) {
+void CompileUnit::addString(DIE *Die, uint16_t Attribute, StringRef String) {
+ DIEValue *Value;
+ uint16_t Form;
if (!DD->useSplitDwarf()) {
MCSymbol *Symb = DU->getStringPoolEntry(String);
- DIEValue *Value;
if (Asm->needsRelocationsForDwarfStringPool())
Value = new (DIEValueAllocator) DIELabel(Symb);
else {
MCSymbol *StringPool = DU->getStringPoolSym();
Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
}
- Die->addValue(Attribute, dwarf::DW_FORM_strp, Value);
+ Form = dwarf::DW_FORM_strp;
} else {
unsigned idx = DU->getStringPoolIndex(String);
- DIEValue *Value = new (DIEValueAllocator) DIEInteger(idx);
- Die->addValue(Attribute, dwarf::DW_FORM_GNU_str_index, Value);
+ Value = new (DIEValueAllocator) DIEInteger(idx);
+ Form = dwarf::DW_FORM_GNU_str_index;
}
+ DIEValue *Str = new (DIEValueAllocator) DIEString(Value, String);
+ Die->addValue(Attribute, Form, Str);
}
/// addLocalString - Add a string attribute data and value. This is guaranteed
/// to be in the local string pool instead of indirected.
-void CompileUnit::addLocalString(DIE *Die, unsigned Attribute,
+void CompileUnit::addLocalString(DIE *Die, uint16_t Attribute,
StringRef String) {
MCSymbol *Symb = DU->getStringPoolEntry(String);
DIEValue *Value;
/// addExpr - Add a Dwarf expression attribute data and value.
///
-void CompileUnit::addExpr(DIE *Die, unsigned Attribute, unsigned Form,
+void CompileUnit::addExpr(DIE *Die, uint16_t Attribute, uint16_t Form,
const MCExpr *Expr) {
DIEValue *Value = new (DIEValueAllocator) DIEExpr(Expr);
Die->addValue(Attribute, Form, Value);
/// addLabel - Add a Dwarf label attribute data and value.
///
-void CompileUnit::addLabel(DIE *Die, unsigned Attribute, unsigned Form,
+void CompileUnit::addLabel(DIE *Die, uint16_t Attribute, uint16_t Form,
const MCSymbol *Label) {
DIEValue *Value = new (DIEValueAllocator) DIELabel(Label);
Die->addValue(Attribute, Form, Value);
/// addLabelAddress - Add a dwarf label attribute data and value using
/// DW_FORM_addr or DW_FORM_GNU_addr_index.
///
-void CompileUnit::addLabelAddress(DIE *Die, unsigned Attribute,
+void CompileUnit::addLabelAddress(DIE *Die, uint16_t Attribute,
MCSymbol *Label) {
if (!DD->useSplitDwarf()) {
if (Label != NULL) {
/// addDelta - Add a label delta attribute data and value.
///
-void CompileUnit::addDelta(DIE *Die, unsigned Attribute, unsigned Form,
+void CompileUnit::addDelta(DIE *Die, uint16_t Attribute, uint16_t Form,
const MCSymbol *Hi, const MCSymbol *Lo) {
DIEValue *Value = new (DIEValueAllocator) DIEDelta(Hi, Lo);
Die->addValue(Attribute, Form, Value);
/// addDIEEntry - Add a DIE attribute data and value.
///
-void CompileUnit::addDIEEntry(DIE *Die, unsigned Attribute, unsigned Form,
+void CompileUnit::addDIEEntry(DIE *Die, uint16_t Attribute, uint16_t Form,
DIE *Entry) {
Die->addValue(Attribute, Form, createDIEEntry(Entry));
}
/// addBlock - Add block data.
///
-void CompileUnit::addBlock(DIE *Die, unsigned Attribute, unsigned Form,
+void CompileUnit::addBlock(DIE *Die, uint16_t Attribute, uint16_t Form,
DIEBlock *Block) {
Block->ComputeSize(Asm);
DIEBlocks.push_back(Block); // Memoize so we can call the destructor later on.
/// entry.
void CompileUnit::addSourceLine(DIE *Die, DIVariable V) {
// Verify variable.
- if (!V.Verify())
+ if (!V.isVariable())
return;
unsigned Line = V.getLineNumber();
/// entry.
void CompileUnit::addSourceLine(DIE *Die, DIGlobalVariable G) {
// Verify global variable.
- if (!G.Verify())
+ if (!G.isGlobalVariable())
return;
unsigned Line = G.getLineNumber();
/// entry.
void CompileUnit::addSourceLine(DIE *Die, DISubprogram SP) {
// Verify subprogram.
- if (!SP.Verify())
+ if (!SP.isSubprogram())
return;
// If the line number is 0, don't add it.
/// entry.
void CompileUnit::addSourceLine(DIE *Die, DIType Ty) {
// Verify type.
- if (!Ty.Verify())
+ if (!Ty.isType())
return;
unsigned Line = Ty.getLineNumber();
/// entry.
void CompileUnit::addSourceLine(DIE *Die, DIObjCProperty Ty) {
// Verify type.
- if (!Ty.Verify())
+ if (!Ty.isObjCProperty())
return;
unsigned Line = Ty.getLineNumber();
/// addAddress - Add an address attribute to a die based on the location
/// provided.
-void CompileUnit::addAddress(DIE *Die, unsigned Attribute,
+void CompileUnit::addAddress(DIE *Die, uint16_t Attribute,
const MachineLocation &Location, bool Indirect) {
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
/// the starting location. Add the DWARF information to the die.
///
void CompileUnit::addComplexAddress(const DbgVariable &DV, DIE *Die,
- unsigned Attribute,
+ uint16_t Attribute,
const MachineLocation &Location) {
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
unsigned N = DV.getNumAddrElements();
/// more information, read large comment just above here.
///
void CompileUnit::addBlockByrefAddress(const DbgVariable &DV, DIE *Die,
- unsigned Attribute,
+ uint16_t Attribute,
const MachineLocation &Location) {
DIType Ty = DV.getType();
DIType TmpTy = Ty;
- unsigned Tag = Ty.getTag();
+ uint16_t Tag = Ty.getTag();
bool isPointer = false;
StringRef varName = DV.getName();
}
/// addConstantValue - Add constant value entry in variable DIE.
-bool CompileUnit::addConstantValue(DIE *Die, const MachineOperand &MO,
+void CompileUnit::addConstantValue(DIE *Die, const MachineOperand &MO,
DIType Ty) {
// FIXME: This is a bit conservative/simple - it emits negative values at
// their maximum bit width which is a bit unfortunate (& doesn't prefer
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
int SizeInBits = -1;
bool SignedConstant = isTypeSigned(Ty, &SizeInBits);
- unsigned Form = SignedConstant ? dwarf::DW_FORM_sdata : dwarf::DW_FORM_udata;
+ uint16_t Form = SignedConstant ? dwarf::DW_FORM_sdata : dwarf::DW_FORM_udata;
switch (SizeInBits) {
case 8: Form = dwarf::DW_FORM_data1; break;
case 16: Form = dwarf::DW_FORM_data2; break;
: addUInt(Block, 0, Form, MO.getImm());
addBlock(Die, dwarf::DW_AT_const_value, 0, Block);
- return true;
}
/// addConstantFPValue - Add constant value entry in variable DIE.
-bool CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
+void CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
assert (MO.isFPImm() && "Invalid machine operand!");
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
APFloat FPImm = MO.getFPImm()->getValueAPF();
(unsigned char)0xFF & FltPtr[Start]);
addBlock(Die, dwarf::DW_AT_const_value, 0, Block);
- return true;
}
/// addConstantFPValue - Add constant value entry in variable DIE.
-bool CompileUnit::addConstantFPValue(DIE *Die, const ConstantFP *CFP) {
- return addConstantValue(Die, CFP->getValueAPF().bitcastToAPInt(), false);
+void CompileUnit::addConstantFPValue(DIE *Die, const ConstantFP *CFP) {
+ addConstantValue(Die, CFP->getValueAPF().bitcastToAPInt(), false);
}
/// addConstantValue - Add constant value entry in variable DIE.
-bool CompileUnit::addConstantValue(DIE *Die, const ConstantInt *CI,
+void CompileUnit::addConstantValue(DIE *Die, const ConstantInt *CI,
bool Unsigned) {
- return addConstantValue(Die, CI->getValue(), Unsigned);
+ addConstantValue(Die, CI->getValue(), Unsigned);
}
// addConstantValue - Add constant value entry in variable DIE.
-bool CompileUnit::addConstantValue(DIE *Die, const APInt &Val,
- bool Unsigned) {
+void CompileUnit::addConstantValue(DIE *Die, const APInt &Val, bool Unsigned) {
unsigned CIBitWidth = Val.getBitWidth();
if (CIBitWidth <= 64) {
unsigned form = 0;
addUInt(Die, dwarf::DW_AT_const_value, form, Val.getZExtValue());
else
addSInt(Die, dwarf::DW_AT_const_value, form, Val.getSExtValue());
- return true;
+ return;
}
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
}
addBlock(Die, dwarf::DW_AT_const_value, 0, Block);
- return true;
}
/// addTemplateParams - Add template parameters into buffer.
/// given DIType.
DIE *CompileUnit::getOrCreateTypeDIE(const MDNode *TyNode) {
DIType Ty(TyNode);
- if (!Ty.Verify())
+ if (!Ty.isType())
return NULL;
DIE *TyDIE = getDIE(Ty);
if (TyDIE)
}
/// addType - Add a new type attribute to the specified entity.
-void CompileUnit::addType(DIE *Entity, DIType Ty, unsigned Attribute) {
- if (!Ty.Verify())
- return;
+void CompileUnit::addType(DIE *Entity, DIType Ty, uint16_t Attribute) {
+ assert(Ty && "Trying to add a type that doesn't exist?");
// Check for pre-existence.
DIEEntry *Entry = getDIEEntry(Ty);
/// addPubTypes - Add type for pubtypes section.
void CompileUnit::addPubTypes(DISubprogram SP) {
DICompositeType SPTy = SP.getType();
- unsigned SPTag = SPTy.getTag();
+ uint16_t SPTag = SPTy.getTag();
if (SPTag != dwarf::DW_TAG_subroutine_type)
return;
DIArray Args = SPTy.getTypeArray();
for (unsigned i = 0, e = Args.getNumElements(); i != e; ++i) {
DIType ATy(Args.getElement(i));
- if (!ATy.Verify())
+ if (!ATy.isType())
continue;
addGlobalType(ATy);
}
if (BTy.getTag() == dwarf::DW_TAG_unspecified_type) {
Buffer.setTag(dwarf::DW_TAG_unspecified_type);
- // Unspecified types has only name, nothing else.
+ // An unspecified type only has a name attribute.
return;
}
// Get core information.
StringRef Name = DTy.getName();
uint64_t Size = DTy.getSizeInBits() >> 3;
- unsigned Tag = DTy.getTag();
+ uint16_t Tag = DTy.getTag();
// FIXME - Workaround for templates.
if (Tag == dwarf::DW_TAG_inheritance) Tag = dwarf::DW_TAG_reference_type;
// Map to main type, void will not have a type.
DIType FromTy = DTy.getTypeDerivedFrom();
- addType(&Buffer, FromTy);
+ if (FromTy)
+ addType(&Buffer, FromTy);
// Add name if not anonymous or intermediate type.
if (!Name.empty())
addSourceLine(&Buffer, DTy);
}
+/// Return true if the type is appropriately scoped to be contained inside
+/// its own type unit.
+static bool isTypeUnitScoped(DIType Ty) {
+ DIScope Parent = Ty.getContext();
+ while (Parent) {
+ // Don't generate a hash for anything scoped inside a function.
+ if (Parent.isSubprogram())
+ return false;
+ Parent = Parent.getContext();
+ }
+ return true;
+}
+
+/// Return true if the type should be split out into a type unit.
+static bool shouldCreateTypeUnit(DICompositeType CTy) {
+ uint16_t Tag = CTy.getTag();
+
+ switch (Tag) {
+ case dwarf::DW_TAG_structure_type:
+ case dwarf::DW_TAG_union_type:
+ case dwarf::DW_TAG_enumeration_type:
+ case dwarf::DW_TAG_class_type:
+ // If this is a class, structure, union, or enumeration type
+ // that is not a declaration, is a type definition, and not scoped
+ // inside a function then separate this out as a type unit.
+ if (CTy.isForwardDecl() || !isTypeUnitScoped(CTy))
+ return 0;
+ return 1;
+ default:
+ return 0;
+ }
+}
+
/// constructTypeDIE - Construct type DIE from DICompositeType.
void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
// Get core information.
StringRef Name = CTy.getName();
uint64_t Size = CTy.getSizeInBits() >> 3;
- unsigned Tag = CTy.getTag();
+ uint16_t Tag = CTy.getTag();
Buffer.setTag(Tag);
switch (Tag) {
}
}
DIType DTy = CTy.getTypeDerivedFrom();
- if (DTy.Verify()) {
+ if (DTy) {
addType(&Buffer, DTy);
addUInt(&Buffer, dwarf::DW_AT_enum_class, dwarf::DW_FORM_flag, 1);
}
}
break;
case dwarf::DW_TAG_subroutine_type: {
- // Add return type.
+ // Add return type. A void return won't have a type.
DIArray Elements = CTy.getTypeArray();
DIDescriptor RTy = Elements.getElement(0);
- addType(&Buffer, DIType(RTy));
+ if (RTy)
+ addType(&Buffer, DIType(RTy));
bool isPrototyped = true;
// Add arguments.
}
// Add prototype flag if we're dealing with a C language and the
// function has been prototyped.
+ uint16_t Language = DICompileUnit(Node).getLanguage();
if (isPrototyped &&
(Language == dwarf::DW_LANG_C89 ||
Language == dwarf::DW_LANG_C99 ||
case dwarf::DW_TAG_class_type: {
// Add elements to structure type.
DIArray Elements = CTy.getTypeArray();
-
- // A forward struct declared type may not have elements available.
- unsigned N = Elements.getNumElements();
- if (N == 0)
- break;
-
- // Add elements to structure type.
- for (unsigned i = 0; i < N; ++i) {
+ for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
DIDescriptor Element = Elements.getElement(i);
DIE *ElemDie = NULL;
if (Element.isSubprogram()) {
if (DIDescriptor(ContainingType).isCompositeType())
addDIEEntry(&Buffer, dwarf::DW_AT_containing_type, dwarf::DW_FORM_ref4,
getOrCreateTypeDIE(DIType(ContainingType)));
- else {
- DIDescriptor Context = CTy.getContext();
- addToContextOwner(&Buffer, Context);
- }
+ else
+ addToContextOwner(&Buffer, CTy.getContext());
if (CTy.isObjcClassComplete())
addFlag(&Buffer, dwarf::DW_AT_APPLE_objc_complete_type);
addUInt(&Buffer, dwarf::DW_AT_APPLE_runtime_class,
dwarf::DW_FORM_data1, RLang);
}
+ // If this is a type applicable to a type unit it then add it to the
+ // list of types we'll compute a hash for later.
+ if (shouldCreateTypeUnit(CTy))
+ DD->addTypeUnitType(&Buffer);
}
/// getOrCreateTemplateTypeParameterDIE - Find existing DIE or create new DIE
return ParamDIE;
ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter);
- addType(ParamDIE, TP.getType());
+ // Add the type if it exists, it could be void and therefore no type.
+ if (TP.getType())
+ addType(ParamDIE, TP.getType());
if (!TP.getName().empty())
addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
return ParamDIE;
/// getOrCreateTemplateValueParameterDIE - Find existing DIE or create new DIE
/// for the given DITemplateValueParameter.
DIE *
-CompileUnit::getOrCreateTemplateValueParameterDIE(DITemplateValueParameter TPV){
- DIE *ParamDIE = getDIE(TPV);
+CompileUnit::getOrCreateTemplateValueParameterDIE(DITemplateValueParameter VP) {
+ DIE *ParamDIE = getDIE(VP);
if (ParamDIE)
return ParamDIE;
- ParamDIE = new DIE(TPV.getTag());
- addType(ParamDIE, TPV.getType());
- if (!TPV.getName().empty())
- addString(ParamDIE, dwarf::DW_AT_name, TPV.getName());
- if (Value *Val = TPV.getValue()) {
+ ParamDIE = new DIE(VP.getTag());
+
+ // Add the type if there is one, template template and template parameter
+ // packs will not have a type.
+ if (VP.getType())
+ addType(ParamDIE, VP.getType());
+ if (!VP.getName().empty())
+ addString(ParamDIE, dwarf::DW_AT_name, VP.getName());
+ if (Value *Val = VP.getValue()) {
if (ConstantInt *CI = dyn_cast<ConstantInt>(Val))
- addConstantValue(ParamDIE, CI, TPV.getType().isUnsignedDIType());
+ addConstantValue(ParamDIE, CI, VP.getType().isUnsignedDIType());
else if (GlobalValue *GV = dyn_cast<GlobalValue>(Val)) {
// For declaration non-type template parameters (such as global values and
// functions)
// parameter, rather than a pointer to it.
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_stack_value);
addBlock(ParamDIE, dwarf::DW_AT_location, 0, Block);
- } else if (TPV.getTag() == dwarf::DW_TAG_GNU_template_template_param) {
+ } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_template_param) {
assert(isa<MDString>(Val));
addString(ParamDIE, dwarf::DW_AT_GNU_template_name,
cast<MDString>(Val)->getString());
- } else if (TPV.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
+ } else if (VP.getTag() == dwarf::DW_TAG_GNU_template_parameter_pack) {
assert(isa<MDNode>(Val));
DIArray A(cast<MDNode>(Val));
addTemplateParams(*ParamDIE, A);
// Add the prototype if we have a prototype and we have a C like
// language.
+ uint16_t Language = DICompileUnit(Node).getLanguage();
if (SP.isPrototyped() &&
(Language == dwarf::DW_LANG_C89 ||
Language == dwarf::DW_LANG_C99 ||
Language == dwarf::DW_LANG_ObjC))
addFlag(SPDie, dwarf::DW_AT_prototyped);
- // Add Return Type.
+ // Add Return Type. A void return type will not have a type.
DICompositeType SPTy = SP.getType();
assert(SPTy.getTag() == dwarf::DW_TAG_subroutine_type &&
"the type of a subprogram should be a subroutine");
DIArray Args = SPTy.getTypeArray();
- addType(SPDie, DIType(Args.getElement(0)));
+ if (Args.getElement(0))
+ addType(SPDie, DIType(Args.getElement(0)));
unsigned VK = SP.getVirtuality();
if (VK) {
return;
DIGlobalVariable GV(N);
- if (!GV.Verify())
+ if (!GV.isGlobalVariable())
return;
DIDescriptor GVContext = GV.getContext();
unsigned PointerSize = Asm->getDataLayout().getPointerSize();
assert((PointerSize == 4 || PointerSize == 8) &&
"Add support for other sizes if necessary");
- const MCSymbolRefExpr *Ref =
+ const MCExpr *Expr =
Asm->getObjFileLowering().getDebugThreadLocalSymbol(Sym);
// Based on GCC's support for TLS:
if (!DD->useSplitDwarf()) {
addUInt(Block, 0, dwarf::DW_FORM_data1,
PointerSize == 4 ? dwarf::DW_OP_const4u : dwarf::DW_OP_const8u);
// 2) containing the (relocated) address of the TLS variable
- addExpr(Block, 0, dwarf::DW_FORM_udata, Ref);
+ addExpr(Block, 0, dwarf::DW_FORM_udata, Expr);
} else {
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_GNU_const_index);
- addUInt(Block, 0, dwarf::DW_FORM_udata, DU->getAddrPoolIndex(Ref));
+ addUInt(Block, 0, dwarf::DW_FORM_udata, DU->getAddrPoolIndex(Expr));
}
// 3) followed by a custom OP to tell the debugger about TLS (presumably)
addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_lo_user);
if (CTy->isVector())
addFlag(&Buffer, dwarf::DW_AT_GNU_vector);
- // Emit derived type.
+ // Emit the element type.
addType(&Buffer, CTy->getTypeDerivedFrom());
- DIArray Elements = CTy->getTypeArray();
// Get an anonymous type for index type.
// FIXME: This type should be passed down from the front end
}
// Add subranges to array type.
+ DIArray Elements = CTy->getTypeArray();
for (unsigned i = 0, N = Elements.getNumElements(); i < N; ++i) {
DIDescriptor Element = Elements.getElement(i);
if (Element.getTag() == dwarf::DW_TAG_subrange_type)
StringRef Name = DV->getName();
// Translate tag to proper Dwarf tag.
- unsigned Tag = DV->getTag();
+ uint16_t Tag = DV->getTag();
// Define variable debug information entry.
DIE *VariableDie = new DIE(Tag);
addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, AbsDIE);
else {
- addString(VariableDie, dwarf::DW_AT_name, Name);
+ if (!Name.empty())
+ addString(VariableDie, dwarf::DW_AT_name, Name);
addSourceLine(VariableDie, DV->getVariable());
addType(VariableDie, DV->getType());
}
// Check if variable is described by a DBG_VALUE instruction.
if (const MachineInstr *DVInsn = DV->getMInsn()) {
- bool updated = false;
assert(DVInsn->getNumOperands() == 3);
if (DVInsn->getOperand(0).isReg()) {
const MachineOperand RegOp = DVInsn->getOperand(0);
- if (int64_t Offset = DVInsn->getOperand(1).getImm()) {
- MachineLocation Location(RegOp.getReg(), Offset);
+ // If the second operand is an immediate, this is an indirect value.
+ if (DVInsn->getOperand(1).isImm()) {
+ MachineLocation Location(RegOp.getReg(), DVInsn->getOperand(1).getImm());
addVariableAddress(*DV, VariableDie, Location);
} else if (RegOp.getReg())
addVariableAddress(*DV, VariableDie, MachineLocation(RegOp.getReg()));
- updated = true;
} else if (DVInsn->getOperand(0).isImm())
- updated =
- addConstantValue(VariableDie, DVInsn->getOperand(0), DV->getType());
+ addConstantValue(VariableDie, DVInsn->getOperand(0), DV->getType());
else if (DVInsn->getOperand(0).isFPImm())
- updated = addConstantFPValue(VariableDie, DVInsn->getOperand(0));
+ addConstantFPValue(VariableDie, DVInsn->getOperand(0));
else if (DVInsn->getOperand(0).isCImm())
- updated = addConstantValue(VariableDie, DVInsn->getOperand(0).getCImm(),
- DV->getType().isUnsignedDIType());
- if (!updated) {
- // If variableDie is not updated then DBG_VALUE instruction does not
- // have valid variable info.
- delete VariableDie;
- return NULL;
- }
+ addConstantValue(VariableDie, DVInsn->getOperand(0).getCImm(),
+ DV->getType().isUnsignedDIType());
+
DV->setDIE(VariableDie);
return VariableDie;
} else {
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