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Refactor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110607 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -62,6 +62,7 @@ namespace llvm {
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}
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GlobalVariable *getGlobalVariableField(unsigned Elt) const;
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Constant *getConstantField(unsigned Elt) const;
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Function *getFunctionField(unsigned Elt) const;
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public:
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@ -447,6 +448,7 @@ namespace llvm {
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unsigned isDefinition() const { return getUnsignedField(10); }
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GlobalVariable *getGlobal() const { return getGlobalVariableField(11); }
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Constant *getConstant() const { return getConstantField(11); }
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/// Verify - Verify that a global variable descriptor is well formed.
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bool Verify() const;
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@ -696,6 +698,15 @@ namespace llvm {
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unsigned LineNo, DIType Ty, bool isLocalToUnit,
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bool isDefinition, llvm::GlobalVariable *GV);
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/// CreateGlobalVariable - Create a new descriptor for the specified constant.
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DIGlobalVariable
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CreateGlobalVariable(DIDescriptor Context, StringRef Name,
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StringRef DisplayName,
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StringRef LinkageName,
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DIFile F,
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unsigned LineNo, DIType Ty, bool isLocalToUnit,
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bool isDefinition, llvm::Constant *C);
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/// CreateVariable - Create a new descriptor for the specified variable.
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DIVariable CreateVariable(unsigned Tag, DIDescriptor Context,
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StringRef Name,
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@ -89,6 +89,15 @@ GlobalVariable *DIDescriptor::getGlobalVariableField(unsigned Elt) const {
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return 0;
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}
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Constant *DIDescriptor::getConstantField(unsigned Elt) const {
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if (DbgNode == 0)
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return 0;
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if (Elt < DbgNode->getNumOperands())
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return dyn_cast_or_null<Constant>(DbgNode->getOperand(Elt));
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return 0;
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}
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Function *DIDescriptor::getFunctionField(unsigned Elt) const {
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if (DbgNode == 0)
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return 0;
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@ -341,7 +350,7 @@ bool DIGlobalVariable::Verify() const {
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if (!Ty.Verify())
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return false;
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if (!getGlobal())
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if (!getGlobal() && !getConstant())
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return false;
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return true;
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@ -1060,6 +1069,38 @@ DIFactory::CreateGlobalVariable(DIDescriptor Context, StringRef Name,
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return DIGlobalVariable(Node);
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}
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/// CreateGlobalVariable - Create a new descriptor for the specified constant.
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DIGlobalVariable
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DIFactory::CreateGlobalVariable(DIDescriptor Context, StringRef Name,
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StringRef DisplayName,
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StringRef LinkageName,
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DIFile F,
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unsigned LineNo, DIType Ty,bool isLocalToUnit,
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bool isDefinition, llvm::Constant *Val) {
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Value *Elts[] = {
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GetTagConstant(dwarf::DW_TAG_variable),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Context,
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MDString::get(VMContext, Name),
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MDString::get(VMContext, DisplayName),
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MDString::get(VMContext, LinkageName),
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F,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
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Ty,
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ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
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ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
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Val
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};
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Value *const *Vs = &Elts[0];
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MDNode *Node = MDNode::get(VMContext,Vs, 12);
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// Create a named metadata so that we do not lose this mdnode.
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NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
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NMD->addOperand(Node);
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return DIGlobalVariable(Node);
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}
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/// CreateVariable - Create a new descriptor for the specified variable.
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DIVariable DIFactory::CreateVariable(unsigned Tag, DIDescriptor Context,
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@ -1190,7 +1190,7 @@ static StringRef getRealLinkageName(StringRef LinkageName) {
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DIE *DwarfDebug::createGlobalVariableDIE(const DIGlobalVariable &GV) {
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// If the global variable was optmized out then no need to create debug info
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// entry.
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if (!GV.getGlobal()) return NULL;
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if (!GV.Verify()) return NULL;
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if (GV.getDisplayName().empty()) return NULL;
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DIE *GVDie = new DIE(dwarf::DW_TAG_variable);
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@ -1908,6 +1908,10 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
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// Add to context owner.
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DIDescriptor GVContext = DI_GV.getContext();
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DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
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addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
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addLabel(Block, 0, dwarf::DW_FORM_udata,
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Asm->Mang->getSymbol(DI_GV.getGlobal()));
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// Do not create specification DIE if context is either compile unit
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// or a subprogram.
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if (DI_GV.isDefinition() && !GVContext.isCompileUnit() &&
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@ -1917,18 +1921,10 @@ void DwarfDebug::constructGlobalVariableDIE(const MDNode *N) {
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DIE *VariableSpecDIE = new DIE(dwarf::DW_TAG_variable);
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addDIEEntry(VariableSpecDIE, dwarf::DW_AT_specification,
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dwarf::DW_FORM_ref4, VariableDie);
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DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
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addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
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addLabel(Block, 0, dwarf::DW_FORM_udata,
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Asm->Mang->getSymbol(DI_GV.getGlobal()));
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addBlock(VariableSpecDIE, dwarf::DW_AT_location, 0, Block);
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addUInt(VariableDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
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TheCU->addDie(VariableSpecDIE);
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} else {
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DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
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addUInt(Block, 0, dwarf::DW_FORM_data1, dwarf::DW_OP_addr);
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addLabel(Block, 0, dwarf::DW_FORM_udata,
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Asm->Mang->getSymbol(DI_GV.getGlobal()));
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addBlock(VariableDie, dwarf::DW_AT_location, 0, Block);
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}
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addToContextOwner(VariableDie, GVContext);
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