X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=lib%2FIR%2FDIBuilder.cpp;h=3276fe6452a58b1fbf4bdb7db61eb948fc00df81;hp=758e7cfeb3c3ade912ef4801e79116be29f7c430;hb=7435fa333d1b646690021bfaa9350355017d0bdf;hpb=e88939cfebbc98133553c6fc03a52b8fb1adbb70 diff --git a/lib/IR/DIBuilder.cpp b/lib/IR/DIBuilder.cpp index 758e7cfeb3c..3276fe6452a 100644 --- a/lib/IR/DIBuilder.cpp +++ b/lib/IR/DIBuilder.cpp @@ -11,10 +11,10 @@ // //===----------------------------------------------------------------------===// -#include "llvm/DIBuilder.h" +#include "llvm/IR/DIBuilder.h" #include "llvm/ADT/STLExtras.h" -#include "llvm/DebugInfo.h" #include "llvm/IR/Constants.h" +#include "llvm/IR/DebugInfo.h" #include "llvm/IR/IntrinsicInst.h" #include "llvm/IR/Module.h" #include "llvm/Support/Debug.h" @@ -23,37 +23,60 @@ using namespace llvm; using namespace llvm::dwarf; -static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) { - assert((Tag & LLVMDebugVersionMask) == 0 && - "Tag too large for debug encoding!"); - return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion); +namespace { +class HeaderBuilder { + SmallVector Chars; + +public: + explicit HeaderBuilder(Twine T) { T.toVector(Chars); } + HeaderBuilder(const HeaderBuilder &X) : Chars(X.Chars) {} + HeaderBuilder(HeaderBuilder &&X) : Chars(std::move(X.Chars)) {} + + template HeaderBuilder &concat(Twineable &&X) { + Chars.push_back(0); + Twine(X).toVector(Chars); + return *this; + } + + MDString *get(LLVMContext &Context) const { + return MDString::get(Context, StringRef(Chars.begin(), Chars.size())); + } + + static HeaderBuilder get(unsigned Tag) { + return HeaderBuilder("0x" + Twine::utohexstr(Tag)); + } +}; } DIBuilder::DIBuilder(Module &m) - : M(m), VMContext(M.getContext()), TheCU(0), TempEnumTypes(0), - TempRetainTypes(0), TempSubprograms(0), TempGVs(0), DeclareFn(0), - ValueFn(0) -{} + : M(m), VMContext(M.getContext()), TempEnumTypes(nullptr), + TempRetainTypes(nullptr), TempSubprograms(nullptr), TempGVs(nullptr), + DeclareFn(nullptr), ValueFn(nullptr) {} -/// finalize - Construct any deferred debug info descriptors. void DIBuilder::finalize() { DIArray Enums = getOrCreateArray(AllEnumTypes); DIType(TempEnumTypes).replaceAllUsesWith(Enums); - DIArray RetainTypes = getOrCreateArray(AllRetainTypes); + SmallVector RetainValues; + // Declarations and definitions of the same type may be retained. Some + // clients RAUW these pairs, leaving duplicates in the retained types + // list. Use a set to remove the duplicates while we transform the + // TrackingVHs back into Values. + SmallPtrSet RetainSet; + for (unsigned I = 0, E = AllRetainTypes.size(); I < E; I++) + if (RetainSet.insert(AllRetainTypes[I])) + RetainValues.push_back(AllRetainTypes[I]); + DIArray RetainTypes = getOrCreateArray(RetainValues); DIType(TempRetainTypes).replaceAllUsesWith(RetainTypes); DIArray SPs = getOrCreateArray(AllSubprograms); DIType(TempSubprograms).replaceAllUsesWith(SPs); for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) { DISubprogram SP(SPs.getElement(i)); - SmallVector Variables; - if (NamedMDNode *NMD = getFnSpecificMDNode(M, SP)) { - for (unsigned ii = 0, ee = NMD->getNumOperands(); ii != ee; ++ii) - Variables.push_back(NMD->getOperand(ii)); - NMD->eraseFromParent(); - } if (MDNode *Temp = SP.getVariablesNodes()) { + SmallVector Variables; + for (Value *V : PreservedVariables.lookup(SP)) + Variables.push_back(V); DIArray AV = getOrCreateArray(Variables); DIType(Temp).replaceAllUsesWith(AV); } @@ -62,15 +85,17 @@ void DIBuilder::finalize() { DIArray GVs = getOrCreateArray(AllGVs); DIType(TempGVs).replaceAllUsesWith(GVs); - DIArray IMs = getOrCreateArray(AllImportedModules); + SmallVector RetainValuesI; + for (unsigned I = 0, E = AllImportedModules.size(); I < E; I++) + RetainValuesI.push_back(AllImportedModules[I]); + DIArray IMs = getOrCreateArray(RetainValuesI); DIType(TempImportedModules).replaceAllUsesWith(IMs); } -/// getNonCompileUnitScope - If N is compile unit return NULL otherwise return -/// N. +/// If N is compile unit return NULL otherwise return N. static MDNode *getNonCompileUnitScope(MDNode *N) { if (DIDescriptor(N).isCompileUnit()) - return NULL; + return nullptr; return N; } @@ -79,23 +104,25 @@ static MDNode *createFilePathPair(LLVMContext &VMContext, StringRef Filename, assert(!Filename.empty() && "Unable to create file without name"); Value *Pair[] = { MDString::get(VMContext, Filename), - MDString::get(VMContext, Directory), + MDString::get(VMContext, Directory) }; return MDNode::get(VMContext, Pair); } -/// createCompileUnit - A CompileUnit provides an anchor for all debugging -/// information generated during this instance of compilation. -void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename, - StringRef Directory, StringRef Producer, - bool isOptimized, StringRef Flags, - unsigned RunTimeVer, StringRef SplitName) { - assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) || +DICompileUnit DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename, + StringRef Directory, + StringRef Producer, bool isOptimized, + StringRef Flags, unsigned RunTimeVer, + StringRef SplitName, + DebugEmissionKind Kind, + bool EmitDebugInfo) { + + assert(((Lang <= dwarf::DW_LANG_OCaml && Lang >= dwarf::DW_LANG_C89) || (Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) && "Invalid Language tag"); assert(!Filename.empty() && "Unable to create compile unit without filename"); - Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) }; + Value *TElts[] = {HeaderBuilder::get(DW_TAG_base_type).get(VMContext)}; TempEnumTypes = MDNode::getTemporary(VMContext, TElts); TempRetainTypes = MDNode::getTemporary(VMContext, TElts); @@ -106,130 +133,115 @@ void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename, TempImportedModules = MDNode::getTemporary(VMContext, TElts); - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit), - createFilePathPair(VMContext, Filename, Directory), - ConstantInt::get(Type::getInt32Ty(VMContext), Lang), - MDString::get(VMContext, Producer), - ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), - MDString::get(VMContext, Flags), - ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer), - TempEnumTypes, - TempRetainTypes, - TempSubprograms, - TempGVs, - TempImportedModules, - MDString::get(VMContext, SplitName) - }; - TheCU = DICompileUnit(MDNode::get(VMContext, Elts)); + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_compile_unit) + .concat(Lang) + .concat(Producer) + .concat(isOptimized) + .concat(Flags) + .concat(RunTimeVer) + .concat(SplitName) + .concat(Kind) + .get(VMContext), + createFilePathPair(VMContext, Filename, Directory), + TempEnumTypes, TempRetainTypes, TempSubprograms, TempGVs, + TempImportedModules}; + + MDNode *CUNode = MDNode::get(VMContext, Elts); // Create a named metadata so that it is easier to find cu in a module. - NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu"); - NMD->addOperand(TheCU); + // Note that we only generate this when the caller wants to actually + // emit debug information. When we are only interested in tracking + // source line locations throughout the backend, we prevent codegen from + // emitting debug info in the final output by not generating llvm.dbg.cu. + if (EmitDebugInfo) { + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu"); + NMD->addOperand(CUNode); + } + + return DICompileUnit(CUNode); } static DIImportedEntity -createImportedModule(LLVMContext &C, DIScope Context, DIDescriptor NS, - unsigned Line, StringRef Name, - SmallVectorImpl &AllImportedModules) { +createImportedModule(LLVMContext &C, dwarf::Tag Tag, DIScope Context, + Value *NS, unsigned Line, StringRef Name, + SmallVectorImpl> &AllImportedModules) { const MDNode *R; - if (Name.empty()) { - Value *Elts[] = { - GetTagConstant(C, dwarf::DW_TAG_imported_module), - Context, - NS, - ConstantInt::get(Type::getInt32Ty(C), Line), - }; - R = MDNode::get(C, Elts); - } else { - Value *Elts[] = { - GetTagConstant(C, dwarf::DW_TAG_imported_module), - Context, - NS, - ConstantInt::get(Type::getInt32Ty(C), Line), - MDString::get(C, Name) - }; - R = MDNode::get(C, Elts); - } + Value *Elts[] = {HeaderBuilder::get(Tag).concat(Line).concat(Name).get(C), + Context, NS}; + R = MDNode::get(C, Elts); DIImportedEntity M(R); assert(M.Verify() && "Imported module should be valid"); - AllImportedModules.push_back(M); + AllImportedModules.push_back(TrackingVH(M)); return M; } DIImportedEntity DIBuilder::createImportedModule(DIScope Context, - DINameSpace NS, unsigned Line, - StringRef Name) { - return ::createImportedModule(VMContext, Context, NS, Line, Name, - AllImportedModules); + DINameSpace NS, + unsigned Line) { + return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_module, + Context, NS, Line, StringRef(), AllImportedModules); } DIImportedEntity DIBuilder::createImportedModule(DIScope Context, DIImportedEntity NS, - unsigned Line, - StringRef Name) { - return ::createImportedModule(VMContext, Context, NS, Line, Name, + unsigned Line) { + return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_module, + Context, NS, Line, StringRef(), AllImportedModules); +} + +DIImportedEntity DIBuilder::createImportedDeclaration(DIScope Context, + DIScope Decl, + unsigned Line, StringRef Name) { + return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_declaration, + Context, Decl.getRef(), Line, Name, AllImportedModules); } DIImportedEntity DIBuilder::createImportedDeclaration(DIScope Context, - DIDescriptor Decl, - unsigned Line) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_imported_declaration), - Context, - Decl, - ConstantInt::get(Type::getInt32Ty(VMContext), Line), - }; - DIImportedEntity M(MDNode::get(VMContext, Elts)); - assert(M.Verify() && "Imported module should be valid"); - AllImportedModules.push_back(M); - return M; + DIImportedEntity Imp, + unsigned Line, StringRef Name) { + return ::createImportedModule(VMContext, dwarf::DW_TAG_imported_declaration, + Context, Imp, Line, Name, AllImportedModules); } -/// createFile - Create a file descriptor to hold debugging information -/// for a file. DIFile DIBuilder::createFile(StringRef Filename, StringRef Directory) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_file_type), - createFilePathPair(VMContext, Filename, Directory) - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_file_type).get(VMContext), + createFilePathPair(VMContext, Filename, Directory)}; return DIFile(MDNode::get(VMContext, Elts)); } -/// createEnumerator - Create a single enumerator value. -DIEnumerator DIBuilder::createEnumerator(StringRef Name, uint64_t Val) { +DIEnumerator DIBuilder::createEnumerator(StringRef Name, int64_t Val) { assert(!Name.empty() && "Unable to create enumerator without name"); Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_enumerator), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt64Ty(VMContext), Val) - }; + HeaderBuilder::get(dwarf::DW_TAG_enumerator).concat(Name).concat(Val).get( + VMContext)}; return DIEnumerator(MDNode::get(VMContext, Elts)); } -/// createNullPtrType - Create C++0x nullptr type. -DIBasicType DIBuilder::createNullPtrType(StringRef Name) { +DIBasicType DIBuilder::createUnspecifiedType(StringRef Name) { assert(!Name.empty() && "Unable to create type without name"); - // nullptr is encoded in DIBasicType format. Line number, filename, - // ,size, alignment, offset and flags are always empty here. + // Unspecified types are encoded in DIBasicType format. Line number, filename, + // size, alignment, offset and flags are always empty here. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type), - NULL, // Filename - NULL, //TheCU, - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags; - ConstantInt::get(Type::getInt32Ty(VMContext), 0) // Encoding + HeaderBuilder::get(dwarf::DW_TAG_unspecified_type) + .concat(Name) + .concat(0) + .concat(0) + .concat(0) + .concat(0) + .concat(0) + .concat(0) + .get(VMContext), + nullptr, // Filename + nullptr // Unused }; return DIBasicType(MDNode::get(VMContext, Elts)); } -/// createBasicType - Create debugging information entry for a basic -/// type, e.g 'char'. +DIBasicType DIBuilder::createNullPtrType() { + return createUnspecifiedType("decltype(nullptr)"); +} + DIBasicType DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits, uint64_t AlignInBits, unsigned Encoding) { @@ -237,182 +249,160 @@ DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits, // Basic types are encoded in DIBasicType format. Line number, filename, // offset and flags are always empty here. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_base_type), - NULL, // File/directory name - NULL, //TheCU, - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags; - ConstantInt::get(Type::getInt32Ty(VMContext), Encoding) + HeaderBuilder::get(dwarf::DW_TAG_base_type) + .concat(Name) + .concat(0) // Line + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(0) // Flags + .concat(Encoding) + .get(VMContext), + nullptr, // Filename + nullptr // Unused }; return DIBasicType(MDNode::get(VMContext, Elts)); } -/// createQualifiedType - Create debugging information entry for a qualified -/// type, e.g. 'const int'. DIDerivedType DIBuilder::createQualifiedType(unsigned Tag, DIType FromTy) { // Qualified types are encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, Tag), - NULL, // Filename - NULL, //TheCU, - MDString::get(VMContext, StringRef()), // Empty name. - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - FromTy - }; + Value *Elts[] = {HeaderBuilder::get(Tag) + .concat(StringRef()) // Name + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + nullptr, // Filename + nullptr, // Unused + FromTy.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createPointerType - Create debugging information entry for a pointer. DIDerivedType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits, uint64_t AlignInBits, StringRef Name) { // Pointer types are encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type), - NULL, // Filename - NULL, //TheCU, - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - PointeeTy - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_pointer_type) + .concat(Name) + .concat(0) // Line + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + nullptr, // Filename + nullptr, // Unused + PointeeTy.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } DIDerivedType DIBuilder::createMemberPointerType(DIType PointeeTy, DIType Base) { // Pointer types are encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_ptr_to_member_type), - NULL, // Filename - NULL, //TheCU, - NULL, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - PointeeTy, - Base - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_ptr_to_member_type) + .concat(StringRef()) + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + nullptr, // Filename + nullptr, // Unused + PointeeTy.getRef(), Base.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createReferenceType - Create debugging information entry for a reference -/// type. DIDerivedType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) { - assert(RTy.Verify() && "Unable to create reference type"); + assert(RTy.isType() && "Unable to create reference type"); // References are encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, Tag), - NULL, // Filename - NULL, // TheCU, - NULL, // Name - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - RTy - }; + Value *Elts[] = {HeaderBuilder::get(Tag) + .concat(StringRef()) // Name + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + nullptr, // Filename + nullptr, // TheCU, + RTy.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createTypedef - Create debugging information entry for a typedef. DIDerivedType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File, unsigned LineNo, DIDescriptor Context) { // typedefs are encoded in DIDerivedType format. - assert(Ty.Verify() && "Invalid typedef type!"); - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_typedef), - File.getFileNode(), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - Ty - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_typedef) + .concat(Name) + .concat(LineNo) + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + File.getFileNode(), + DIScope(getNonCompileUnitScope(Context)).getRef(), + Ty.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createFriend - Create debugging information entry for a 'friend'. DIDerivedType DIBuilder::createFriend(DIType Ty, DIType FriendTy) { // typedefs are encoded in DIDerivedType format. - assert(Ty.Verify() && "Invalid type!"); - assert(FriendTy.Verify() && "Invalid friend type!"); - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_friend), - NULL, - Ty, - NULL, // Name - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags - FriendTy - }; + assert(Ty.isType() && "Invalid type!"); + assert(FriendTy.isType() && "Invalid friend type!"); + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_friend) + .concat(StringRef()) // Name + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(0) // Flags + .get(VMContext), + nullptr, Ty.getRef(), FriendTy.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createInheritance - Create debugging information entry to establish -/// inheritance relationship between two types. -DIDerivedType DIBuilder::createInheritance( - DIType Ty, DIType BaseTy, uint64_t BaseOffset, unsigned Flags) { - assert(Ty.Verify() && "Unable to create inheritance"); +DIDerivedType DIBuilder::createInheritance(DIType Ty, DIType BaseTy, + uint64_t BaseOffset, + unsigned Flags) { + assert(Ty.isType() && "Unable to create inheritance"); // TAG_inheritance is encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_inheritance), - NULL, - Ty, - NULL, // Name - ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size - ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align - ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - BaseTy - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_inheritance) + .concat(StringRef()) // Name + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(BaseOffset) + .concat(Flags) + .get(VMContext), + nullptr, Ty.getRef(), BaseTy.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createMemberType - Create debugging information entry for a member. -DIDerivedType DIBuilder::createMemberType( - DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNumber, - uint64_t SizeInBits, uint64_t AlignInBits, uint64_t OffsetInBits, - unsigned Flags, DIType Ty) { +DIDerivedType DIBuilder::createMemberType(DIDescriptor Scope, StringRef Name, + DIFile File, unsigned LineNumber, + uint64_t SizeInBits, + uint64_t AlignInBits, + uint64_t OffsetInBits, unsigned Flags, + DIType Ty) { // TAG_member is encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_member), - File.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - Ty - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_member) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(OffsetInBits) + .concat(Flags) + .get(VMContext), + File.getFileNode(), + DIScope(getNonCompileUnitScope(Scope)).getRef(), + Ty.getRef()}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createStaticMemberType - Create debugging information entry for a -/// C++ static data member. DIDerivedType DIBuilder::createStaticMemberType(DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNumber, @@ -420,113 +410,66 @@ DIBuilder::createStaticMemberType(DIDescriptor Scope, StringRef Name, llvm::Value *Val) { // TAG_member is encoded in DIDerivedType format. Flags |= DIDescriptor::FlagStaticMember; - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_member), - File.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), 0/*SizeInBits*/), - ConstantInt::get(Type::getInt64Ty(VMContext), 0/*AlignInBits*/), - ConstantInt::get(Type::getInt64Ty(VMContext), 0/*OffsetInBits*/), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - Ty, - Val - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_member) + .concat(Name) + .concat(LineNumber) + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(Flags) + .get(VMContext), + File.getFileNode(), + DIScope(getNonCompileUnitScope(Scope)).getRef(), Ty.getRef(), + Val}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createObjCIVar - Create debugging information entry for Objective-C -/// instance variable. -DIDerivedType -DIBuilder::createObjCIVar(StringRef Name, - DIFile File, unsigned LineNumber, - uint64_t SizeInBits, uint64_t AlignInBits, - uint64_t OffsetInBits, unsigned Flags, - DIType Ty, StringRef PropertyName, - StringRef GetterName, StringRef SetterName, - unsigned PropertyAttributes) { - // TAG_member is encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_member), - File.getFileNode(), - getNonCompileUnitScope(File), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - Ty, - MDString::get(VMContext, PropertyName), - MDString::get(VMContext, GetterName), - MDString::get(VMContext, SetterName), - ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes) - }; - return DIDerivedType(MDNode::get(VMContext, Elts)); -} - -/// createObjCIVar - Create debugging information entry for Objective-C -/// instance variable. -DIDerivedType -DIBuilder::createObjCIVar(StringRef Name, - DIFile File, unsigned LineNumber, - uint64_t SizeInBits, uint64_t AlignInBits, - uint64_t OffsetInBits, unsigned Flags, - DIType Ty, MDNode *PropertyNode) { +DIDerivedType DIBuilder::createObjCIVar(StringRef Name, DIFile File, + unsigned LineNumber, + uint64_t SizeInBits, + uint64_t AlignInBits, + uint64_t OffsetInBits, unsigned Flags, + DIType Ty, MDNode *PropertyNode) { // TAG_member is encoded in DIDerivedType format. - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_member), - File.getFileNode(), - getNonCompileUnitScope(File), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - Ty, - PropertyNode - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_member) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(OffsetInBits) + .concat(Flags) + .get(VMContext), + File.getFileNode(), getNonCompileUnitScope(File), Ty, + PropertyNode}; return DIDerivedType(MDNode::get(VMContext, Elts)); } -/// createObjCProperty - Create debugging information entry for Objective-C -/// property. -DIObjCProperty DIBuilder::createObjCProperty(StringRef Name, - DIFile File, unsigned LineNumber, - StringRef GetterName, - StringRef SetterName, - unsigned PropertyAttributes, - DIType Ty) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property), - MDString::get(VMContext, Name), - File, - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - MDString::get(VMContext, GetterName), - MDString::get(VMContext, SetterName), - ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes), - Ty - }; +DIObjCProperty +DIBuilder::createObjCProperty(StringRef Name, DIFile File, unsigned LineNumber, + StringRef GetterName, StringRef SetterName, + unsigned PropertyAttributes, DIType Ty) { + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_APPLE_property) + .concat(Name) + .concat(LineNumber) + .concat(GetterName) + .concat(SetterName) + .concat(PropertyAttributes) + .get(VMContext), + File, Ty}; return DIObjCProperty(MDNode::get(VMContext, Elts)); } -/// createTemplateTypeParameter - Create debugging information for template -/// type parameter. DITemplateTypeParameter DIBuilder::createTemplateTypeParameter(DIDescriptor Context, StringRef Name, DIType Ty, MDNode *File, unsigned LineNo, unsigned ColumnNo) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - Ty, - File, - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), - ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo) - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_template_type_parameter) + .concat(Name) + .concat(LineNo) + .concat(ColumnNo) + .get(VMContext), + DIScope(getNonCompileUnitScope(Context)).getRef(), + Ty.getRef(), File}; return DITemplateTypeParameter(MDNode::get(VMContext, Elts)); } @@ -537,20 +480,13 @@ DIBuilder::createTemplateValueParameter(unsigned Tag, DIDescriptor Context, unsigned LineNo, unsigned ColumnNo) { Value *Elts[] = { - GetTagConstant(VMContext, Tag), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - Ty, - Val, - File, - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), - ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo) - }; + HeaderBuilder::get(Tag).concat(Name).concat(LineNo).concat(ColumnNo).get( + VMContext), + DIScope(getNonCompileUnitScope(Context)).getRef(), Ty.getRef(), Val, + File}; return DITemplateValueParameter(MDNode::get(VMContext, Elts)); } -/// createTemplateValueParameter - Create debugging information for template -/// value parameter. DITemplateValueParameter DIBuilder::createTemplateValueParameter(DIDescriptor Context, StringRef Name, DIType Ty, Value *Val, @@ -581,7 +517,6 @@ DIBuilder::createTemplateParameterPack(DIDescriptor Context, StringRef Name, ColumnNo); } -/// createClassType - Create debugging information entry for a class. DICompositeType DIBuilder::createClassType(DIDescriptor Context, StringRef Name, DIFile File, unsigned LineNumber, uint64_t SizeInBits, @@ -589,33 +524,34 @@ DICompositeType DIBuilder::createClassType(DIDescriptor Context, StringRef Name, uint64_t OffsetInBits, unsigned Flags, DIType DerivedFrom, DIArray Elements, - MDNode *VTableHolder, - MDNode *TemplateParams) { - assert((!Context || Context.Verify()) && + DIType VTableHolder, + MDNode *TemplateParams, + StringRef UniqueIdentifier) { + assert((!Context || Context.isScope() || Context.isType()) && "createClassType should be called with a valid Context"); // TAG_class_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_class_type), - File.getFileNode(), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - DerivedFrom, - Elements, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - VTableHolder, - TemplateParams - }; + HeaderBuilder::get(dwarf::DW_TAG_class_type) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(OffsetInBits) + .concat(Flags) + .concat(0) + .get(VMContext), + File.getFileNode(), DIScope(getNonCompileUnitScope(Context)).getRef(), + DerivedFrom.getRef(), Elements, VTableHolder.getRef(), TemplateParams, + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; DICompositeType R(MDNode::get(VMContext, Elts)); - assert(R.Verify() && "createClassType should return a verifiable DIType"); + assert(R.isCompositeType() && + "createClassType should return a DICompositeType"); + if (!UniqueIdentifier.empty()) + retainType(R); return R; } -/// createStructType - Create debugging information entry for a struct. DICompositeType DIBuilder::createStructType(DIDescriptor Context, StringRef Name, DIFile File, unsigned LineNumber, @@ -624,501 +560,514 @@ DICompositeType DIBuilder::createStructType(DIDescriptor Context, unsigned Flags, DIType DerivedFrom, DIArray Elements, unsigned RunTimeLang, - MDNode *VTableHolder) { + DIType VTableHolder, + StringRef UniqueIdentifier) { // TAG_structure_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_structure_type), - File.getFileNode(), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - DerivedFrom, - Elements, - ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang), - VTableHolder, - NULL, - }; + HeaderBuilder::get(dwarf::DW_TAG_structure_type) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) + .concat(Flags) + .concat(RunTimeLang) + .get(VMContext), + File.getFileNode(), DIScope(getNonCompileUnitScope(Context)).getRef(), + DerivedFrom.getRef(), Elements, VTableHolder.getRef(), nullptr, + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; DICompositeType R(MDNode::get(VMContext, Elts)); - assert(R.Verify() && "createStructType should return a verifiable DIType"); + assert(R.isCompositeType() && + "createStructType should return a DICompositeType"); + if (!UniqueIdentifier.empty()) + retainType(R); return R; } -/// createUnionType - Create debugging information entry for an union. DICompositeType DIBuilder::createUnionType(DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNumber, uint64_t SizeInBits, uint64_t AlignInBits, unsigned Flags, DIArray Elements, - unsigned RunTimeLang) { + unsigned RunTimeLang, + StringRef UniqueIdentifier) { // TAG_union_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_union_type), - File.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - NULL, - Elements, - ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang), - Constant::getNullValue(Type::getInt32Ty(VMContext)), - NULL - }; - return DICompositeType(MDNode::get(VMContext, Elts)); + HeaderBuilder::get(dwarf::DW_TAG_union_type) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(Flags) + .concat(RunTimeLang) + .get(VMContext), + File.getFileNode(), DIScope(getNonCompileUnitScope(Scope)).getRef(), + nullptr, Elements, nullptr, nullptr, + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; + DICompositeType R(MDNode::get(VMContext, Elts)); + if (!UniqueIdentifier.empty()) + retainType(R); + return R; } -/// createSubroutineType - Create subroutine type. -DICompositeType -DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) { +DISubroutineType DIBuilder::createSubroutineType(DIFile File, + DITypeArray ParameterTypes, + unsigned Flags) { // TAG_subroutine_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type), - Constant::getNullValue(Type::getInt32Ty(VMContext)), - Constant::getNullValue(Type::getInt32Ty(VMContext)), - MDString::get(VMContext, ""), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - NULL, - ParameterTypes, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - Constant::getNullValue(Type::getInt32Ty(VMContext)) + HeaderBuilder::get(dwarf::DW_TAG_subroutine_type) + .concat(StringRef()) + .concat(0) // Line + .concat(0) // Size + .concat(0) // Align + .concat(0) // Offset + .concat(Flags) // Flags + .concat(0) + .get(VMContext), + nullptr, nullptr, nullptr, ParameterTypes, nullptr, nullptr, + nullptr // Type Identifer }; - return DICompositeType(MDNode::get(VMContext, Elts)); + return DISubroutineType(MDNode::get(VMContext, Elts)); } -/// createEnumerationType - Create debugging information entry for an -/// enumeration. DICompositeType DIBuilder::createEnumerationType( DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNumber, uint64_t SizeInBits, uint64_t AlignInBits, DIArray Elements, - DIType UnderlyingType) { + DIType UnderlyingType, StringRef UniqueIdentifier) { // TAG_enumeration_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type), - File.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - UnderlyingType, - Elements, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - Constant::getNullValue(Type::getInt32Ty(VMContext)) - }; - MDNode *Node = MDNode::get(VMContext, Elts); - AllEnumTypes.push_back(Node); - return DICompositeType(Node); + HeaderBuilder::get(dwarf::DW_TAG_enumeration_type) + .concat(Name) + .concat(LineNumber) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(0) // Flags + .concat(0) + .get(VMContext), + File.getFileNode(), DIScope(getNonCompileUnitScope(Scope)).getRef(), + UnderlyingType.getRef(), Elements, nullptr, nullptr, + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; + DICompositeType CTy(MDNode::get(VMContext, Elts)); + AllEnumTypes.push_back(CTy); + if (!UniqueIdentifier.empty()) + retainType(CTy); + return CTy; } -/// createArrayType - Create debugging information entry for an array. DICompositeType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits, DIType Ty, DIArray Subscripts) { // TAG_array_type is encoded in DICompositeType format. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_array_type), - NULL, // Filename/Directory, - NULL, //TheCU, - MDString::get(VMContext, ""), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), Size), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - Ty, - Subscripts, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - Constant::getNullValue(Type::getInt32Ty(VMContext)) + HeaderBuilder::get(dwarf::DW_TAG_array_type) + .concat(StringRef()) + .concat(0) // Line + .concat(Size) + .concat(AlignInBits) + .concat(0) // Offset + .concat(0) // Flags + .concat(0) + .get(VMContext), + nullptr, // Filename/Directory, + nullptr, // Unused + Ty.getRef(), Subscripts, nullptr, nullptr, + nullptr // Type Identifer }; return DICompositeType(MDNode::get(VMContext, Elts)); } -/// createVectorType - Create debugging information entry for a vector. DICompositeType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits, DIType Ty, DIArray Subscripts) { - // A vector is an array type with the FlagVector flag applied. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_array_type), - NULL, // Filename/Directory, - NULL, //TheCU, - MDString::get(VMContext, ""), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt64Ty(VMContext), Size), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), DIType::FlagVector), - Ty, - Subscripts, - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - Constant::getNullValue(Type::getInt32Ty(VMContext)) + HeaderBuilder::get(dwarf::DW_TAG_array_type) + .concat("") + .concat(0) // Line + .concat(Size) + .concat(AlignInBits) + .concat(0) // Offset + .concat(DIType::FlagVector) + .concat(0) + .get(VMContext), + nullptr, // Filename/Directory, + nullptr, // Unused + Ty.getRef(), Subscripts, nullptr, nullptr, + nullptr // Type Identifer }; return DICompositeType(MDNode::get(VMContext, Elts)); } -/// createArtificialType - Create a new DIType with "artificial" flag set. -DIType DIBuilder::createArtificialType(DIType Ty) { - if (Ty.isArtificial()) - return Ty; +static HeaderBuilder setTypeFlagsInHeader(StringRef Header, + unsigned FlagsToSet) { + DIHeaderFieldIterator I(Header); + std::advance(I, 6); + unsigned Flags; + if (I->getAsInteger(0, Flags)) + Flags = 0; + Flags |= FlagsToSet; + + return HeaderBuilder(Twine(I.getPrefix())).concat(Flags).concat( + I.getSuffix()); +} + +static DIType createTypeWithFlags(LLVMContext &Context, DIType Ty, + unsigned FlagsToSet) { SmallVector Elts; MDNode *N = Ty; - assert (N && "Unexpected input DIType!"); - for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { - if (Value *V = N->getOperand(i)) - Elts.push_back(V); - else - Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))); - } - - unsigned CurFlags = Ty.getFlags(); - CurFlags = CurFlags | DIType::FlagArtificial; + assert(N && "Unexpected input DIType!"); + // Update header field. + Elts.push_back(setTypeFlagsInHeader(Ty.getHeader(), FlagsToSet).get(Context)); + for (unsigned I = 1, E = N->getNumOperands(); I != E; ++I) + Elts.push_back(N->getOperand(I)); - // Flags are stored at this slot. - Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags); + return DIType(MDNode::get(Context, Elts)); +} - return DIType(MDNode::get(VMContext, Elts)); +DIType DIBuilder::createArtificialType(DIType Ty) { + if (Ty.isArtificial()) + return Ty; + return createTypeWithFlags(VMContext, Ty, DIType::FlagArtificial); } -/// createObjectPointerType - Create a new type with both the object pointer -/// and artificial flags set. DIType DIBuilder::createObjectPointerType(DIType Ty) { if (Ty.isObjectPointer()) return Ty; - - SmallVector Elts; - MDNode *N = Ty; - assert (N && "Unexpected input DIType!"); - for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { - if (Value *V = N->getOperand(i)) - Elts.push_back(V); - else - Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))); - } - - unsigned CurFlags = Ty.getFlags(); - CurFlags = CurFlags | (DIType::FlagObjectPointer | DIType::FlagArtificial); - - // Flags are stored at this slot. - Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags); - - return DIType(MDNode::get(VMContext, Elts)); + unsigned Flags = DIType::FlagObjectPointer | DIType::FlagArtificial; + return createTypeWithFlags(VMContext, Ty, Flags); } -/// retainType - Retain DIType in a module even if it is not referenced -/// through debug info anchors. void DIBuilder::retainType(DIType T) { - AllRetainTypes.push_back(T); + AllRetainTypes.push_back(TrackingVH(T)); +} + +DIBasicType DIBuilder::createUnspecifiedParameter() { + return DIBasicType(); } -/// createUnspecifiedParameter - Create unspeicified type descriptor -/// for the subroutine type. -DIDescriptor DIBuilder::createUnspecifiedParameter() { +DICompositeType +DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, DIDescriptor Scope, + DIFile F, unsigned Line, unsigned RuntimeLang, + uint64_t SizeInBits, uint64_t AlignInBits, + StringRef UniqueIdentifier) { + // Create a temporary MDNode. Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters) - }; - return DIDescriptor(MDNode::get(VMContext, Elts)); + HeaderBuilder::get(Tag) + .concat(Name) + .concat(Line) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(DIDescriptor::FlagFwdDecl) + .concat(RuntimeLang) + .get(VMContext), + F.getFileNode(), DIScope(getNonCompileUnitScope(Scope)).getRef(), nullptr, + DIArray(), nullptr, + nullptr, // TemplateParams + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; + MDNode *Node = MDNode::get(VMContext, Elts); + DICompositeType RetTy(Node); + assert(RetTy.isCompositeType() && + "createForwardDecl result should be a DIType"); + if (!UniqueIdentifier.empty()) + retainType(RetTy); + return RetTy; } -/// createForwardDecl - Create a temporary forward-declared type that -/// can be RAUW'd if the full type is seen. -DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name, - DIDescriptor Scope, DIFile F, - unsigned Line, unsigned RuntimeLang, - uint64_t SizeInBits, - uint64_t AlignInBits) { +DICompositeType DIBuilder::createReplaceableForwardDecl( + unsigned Tag, StringRef Name, DIDescriptor Scope, DIFile F, unsigned Line, + unsigned RuntimeLang, uint64_t SizeInBits, uint64_t AlignInBits, + StringRef UniqueIdentifier) { // Create a temporary MDNode. Value *Elts[] = { - GetTagConstant(VMContext, Tag), - F.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), Line), - ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), - ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), - DIDescriptor::FlagFwdDecl), - NULL, - DIArray(), - ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang) - }; + HeaderBuilder::get(Tag) + .concat(Name) + .concat(Line) + .concat(SizeInBits) + .concat(AlignInBits) + .concat(0) // Offset + .concat(DIDescriptor::FlagFwdDecl) + .concat(RuntimeLang) + .get(VMContext), + F.getFileNode(), DIScope(getNonCompileUnitScope(Scope)).getRef(), nullptr, + DIArray(), nullptr, + nullptr, // TemplateParams + UniqueIdentifier.empty() ? nullptr + : MDString::get(VMContext, UniqueIdentifier)}; MDNode *Node = MDNode::getTemporary(VMContext, Elts); - assert(DIType(Node).Verify() && - "createForwardDecl result should be verifiable"); - return DIType(Node); + DICompositeType RetTy(Node); + assert(RetTy.isCompositeType() && + "createReplaceableForwardDecl result should be a DIType"); + if (!UniqueIdentifier.empty()) + retainType(RetTy); + return RetTy; } -/// getOrCreateArray - Get a DIArray, create one if required. DIArray DIBuilder::getOrCreateArray(ArrayRef Elements) { - if (Elements.empty()) { - Value *Null = Constant::getNullValue(Type::getInt32Ty(VMContext)); - return DIArray(MDNode::get(VMContext, Null)); - } return DIArray(MDNode::get(VMContext, Elements)); } -/// getOrCreateSubrange - Create a descriptor for a value range. This -/// implicitly uniques the values returned. +DITypeArray DIBuilder::getOrCreateTypeArray(ArrayRef Elements) { + SmallVector Elts; + for (unsigned i = 0, e = Elements.size(); i != e; ++i) { + if (Elements[i] && isa(Elements[i])) + Elts.push_back(DIType(cast(Elements[i])).getRef()); + else + Elts.push_back(Elements[i]); + } + return DITypeArray(MDNode::get(VMContext, Elts)); +} + DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Count) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type), - ConstantInt::get(Type::getInt64Ty(VMContext), Lo), - ConstantInt::get(Type::getInt64Ty(VMContext), Count) - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_subrange_type) + .concat(Lo) + .concat(Count) + .get(VMContext)}; return DISubrange(MDNode::get(VMContext, Elts)); } -/// \brief Create a new descriptor for the specified global. -DIGlobalVariable DIBuilder:: -createGlobalVariable(StringRef Name, StringRef LinkageName, DIFile F, - unsigned LineNumber, DIType Ty, bool isLocalToUnit, - Value *Val) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_variable), - Constant::getNullValue(Type::getInt32Ty(VMContext)), - NULL, // TheCU, - MDString::get(VMContext, Name), - MDString::get(VMContext, Name), - MDString::get(VMContext, LinkageName), - F, - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - Ty, - ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit), - ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/ - Val, - DIDescriptor() - }; - MDNode *Node = MDNode::get(VMContext, Elts); - AllGVs.push_back(Node); - return DIGlobalVariable(Node); +static DIGlobalVariable +createGlobalVariableHelper(LLVMContext &VMContext, DIDescriptor Context, + StringRef Name, StringRef LinkageName, DIFile F, + unsigned LineNumber, DITypeRef Ty, bool isLocalToUnit, + Value *Val, MDNode *Decl, bool isDefinition, + std::function)> CreateFunc) { + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_variable) + .concat(Name) + .concat(Name) + .concat(LinkageName) + .concat(LineNumber) + .concat(isLocalToUnit) + .concat(isDefinition) + .get(VMContext), + getNonCompileUnitScope(Context), F, Ty, Val, + DIDescriptor(Decl)}; + + return DIGlobalVariable(CreateFunc(Elts)); } -/// \brief Create a new descriptor for the specified global. -DIGlobalVariable DIBuilder:: -createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber, - DIType Ty, bool isLocalToUnit, Value *Val) { - return createGlobalVariable(Name, Name, F, LineNumber, Ty, isLocalToUnit, - Val); +DIGlobalVariable DIBuilder::createGlobalVariable(DIDescriptor Context, + StringRef Name, + StringRef LinkageName, + DIFile F, unsigned LineNumber, + DITypeRef Ty, + bool isLocalToUnit, + Value *Val, MDNode *Decl) { + return createGlobalVariableHelper(VMContext, Context, Name, LinkageName, F, + LineNumber, Ty, isLocalToUnit, Val, Decl, true, + [&] (ArrayRef Elts) -> MDNode * { + MDNode *Node = MDNode::get(VMContext, Elts); + AllGVs.push_back(Node); + return Node; + }); } -/// createStaticVariable - Create a new descriptor for the specified static -/// variable. -DIGlobalVariable DIBuilder:: -createStaticVariable(DIDescriptor Context, StringRef Name, - StringRef LinkageName, DIFile F, unsigned LineNumber, - DIType Ty, bool isLocalToUnit, Value *Val, MDNode *Decl) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_variable), - Constant::getNullValue(Type::getInt32Ty(VMContext)), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - MDString::get(VMContext, Name), - MDString::get(VMContext, LinkageName), - F, - ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), - Ty, - ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit), - ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/ - Val, - DIDescriptor(Decl) - }; - MDNode *Node = MDNode::get(VMContext, Elts); - AllGVs.push_back(Node); - return DIGlobalVariable(Node); +DIGlobalVariable +DIBuilder::createTempGlobalVariableFwdDecl(DIDescriptor Context, + StringRef Name, + StringRef LinkageName, + DIFile F, unsigned LineNumber, + DITypeRef Ty, + bool isLocalToUnit, + Value *Val, MDNode *Decl) { + return createGlobalVariableHelper(VMContext, Context, Name, LinkageName, F, + LineNumber, Ty, isLocalToUnit, Val, Decl, false, + [&] (ArrayRef Elts) { + return MDNode::getTemporary(VMContext, Elts); + }); } -/// createVariable - Create a new descriptor for the specified variable. DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope, StringRef Name, DIFile File, - unsigned LineNo, DIType Ty, + unsigned LineNo, DITypeRef Ty, bool AlwaysPreserve, unsigned Flags, unsigned ArgNo) { DIDescriptor Context(getNonCompileUnitScope(Scope)); - assert((!Context || Context.Verify()) && + assert((!Context || Context.isScope()) && "createLocalVariable should be called with a valid Context"); - assert(Ty.Verify() && - "createLocalVariable should be called with a valid type"); - Value *Elts[] = { - GetTagConstant(VMContext, Tag), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - File, - ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))), - Ty, - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - Constant::getNullValue(Type::getInt32Ty(VMContext)) - }; + Value *Elts[] = {HeaderBuilder::get(Tag) + .concat(Name) + .concat(LineNo | (ArgNo << 24)) + .concat(Flags) + .get(VMContext), + getNonCompileUnitScope(Scope), File, Ty}; MDNode *Node = MDNode::get(VMContext, Elts); if (AlwaysPreserve) { // The optimizer may remove local variable. If there is an interest // to preserve variable info in such situation then stash it in a // named mdnode. DISubprogram Fn(getDISubprogram(Scope)); - NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, Fn); - FnLocals->addOperand(Node); + assert(Fn && "Missing subprogram for local variable"); + PreservedVariables[Fn].push_back(Node); } - assert(DIVariable(Node).Verify() && - "createLocalVariable should return a verifiable DIVariable"); - return DIVariable(Node); -} - -/// createComplexVariable - Create a new descriptor for the specified variable -/// which has a complex address expression for its address. -DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope, - StringRef Name, DIFile F, - unsigned LineNo, - DIType Ty, ArrayRef Addr, - unsigned ArgNo) { - SmallVector Elts; - Elts.push_back(GetTagConstant(VMContext, Tag)); - Elts.push_back(getNonCompileUnitScope(Scope)), - Elts.push_back(MDString::get(VMContext, Name)); - Elts.push_back(F); - Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), - (LineNo | (ArgNo << 24)))); - Elts.push_back(Ty); - Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))); - Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))); - Elts.append(Addr.begin(), Addr.end()); - - return DIVariable(MDNode::get(VMContext, Elts)); -} - -/// createFunction - Create a new descriptor for the specified function. -DISubprogram DIBuilder::createFunction(DIDescriptor Context, - StringRef Name, - StringRef LinkageName, - DIFile File, unsigned LineNo, - DICompositeType Ty, + DIVariable RetVar(Node); + assert(RetVar.isVariable() && + "createLocalVariable should return a valid DIVariable"); + return RetVar; +} + +DIExpression DIBuilder::createExpression(ArrayRef Addr) { + auto Header = HeaderBuilder::get(DW_TAG_expression); + for (int64_t I : Addr) + Header.concat(I); + Value *Elts[] = {Header.get(VMContext)}; + return DIExpression(MDNode::get(VMContext, Elts)); +} + +DIExpression DIBuilder::createPieceExpression(unsigned OffsetInBytes, + unsigned SizeInBytes) { + int64_t Addr[] = {dwarf::DW_OP_piece, OffsetInBytes, SizeInBytes}; + return createExpression(Addr); +} + +DISubprogram DIBuilder::createFunction(DIScopeRef Context, StringRef Name, + StringRef LinkageName, DIFile File, + unsigned LineNo, DICompositeType Ty, bool isLocalToUnit, bool isDefinition, - unsigned ScopeLine, - unsigned Flags, bool isOptimized, - Function *Fn, - MDNode *TParams, - MDNode *Decl) { + unsigned ScopeLine, unsigned Flags, + bool isOptimized, Function *Fn, + MDNode *TParams, MDNode *Decl) { + // dragonegg does not generate identifier for types, so using an empty map + // to resolve the context should be fine. + DITypeIdentifierMap EmptyMap; + return createFunction(Context.resolve(EmptyMap), Name, LinkageName, File, + LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine, + Flags, isOptimized, Fn, TParams, Decl); +} + +static DISubprogram +createFunctionHelper(LLVMContext &VMContext, DIDescriptor Context, StringRef Name, + StringRef LinkageName, DIFile File, unsigned LineNo, + DICompositeType Ty, bool isLocalToUnit, bool isDefinition, + unsigned ScopeLine, unsigned Flags, bool isOptimized, + Function *Fn, MDNode *TParams, MDNode *Decl, + std::function)> CreateFunc) { assert(Ty.getTag() == dwarf::DW_TAG_subroutine_type && "function types should be subroutines"); - Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) }; + Value *TElts[] = {HeaderBuilder::get(DW_TAG_base_type).get(VMContext)}; Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_subprogram), - File.getFileNode(), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - MDString::get(VMContext, Name), - MDString::get(VMContext, LinkageName), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), - Ty, - ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit), - ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - ConstantInt::get(Type::getInt32Ty(VMContext), 0), - NULL, - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), - Fn, - TParams, - Decl, - MDNode::getTemporary(VMContext, TElts), - ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine) - }; - MDNode *Node = MDNode::get(VMContext, Elts); - - // Create a named metadata so that we do not lose this mdnode. - if (isDefinition) - AllSubprograms.push_back(Node); - DISubprogram S(Node); - assert(S.Verify() && "createFunction should return a valid DISubprogram"); + HeaderBuilder::get(dwarf::DW_TAG_subprogram) + .concat(Name) + .concat(Name) + .concat(LinkageName) + .concat(LineNo) + .concat(isLocalToUnit) + .concat(isDefinition) + .concat(0) + .concat(0) + .concat(Flags) + .concat(isOptimized) + .concat(ScopeLine) + .get(VMContext), + File.getFileNode(), DIScope(getNonCompileUnitScope(Context)).getRef(), Ty, + nullptr, Fn, TParams, Decl, MDNode::getTemporary(VMContext, TElts)}; + + DISubprogram S(CreateFunc(Elts)); + assert(S.isSubprogram() && + "createFunction should return a valid DISubprogram"); return S; } -/// createMethod - Create a new descriptor for the specified C++ method. -DISubprogram DIBuilder::createMethod(DIDescriptor Context, - StringRef Name, - StringRef LinkageName, - DIFile F, + +DISubprogram DIBuilder::createFunction(DIDescriptor Context, StringRef Name, + StringRef LinkageName, DIFile File, + unsigned LineNo, DICompositeType Ty, + bool isLocalToUnit, bool isDefinition, + unsigned ScopeLine, unsigned Flags, + bool isOptimized, Function *Fn, + MDNode *TParams, MDNode *Decl) { + return createFunctionHelper(VMContext, Context, Name, LinkageName, File, + LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine, + Flags, isOptimized, Fn, TParams, Decl, + [&] (ArrayRef Elts) -> MDNode *{ + MDNode *Node = MDNode::get(VMContext, Elts); + // Create a named metadata so that we + // do not lose this mdnode. + if (isDefinition) + AllSubprograms.push_back(Node); + return Node; + }); +} + +DISubprogram +DIBuilder::createTempFunctionFwdDecl(DIDescriptor Context, StringRef Name, + StringRef LinkageName, DIFile File, + unsigned LineNo, DICompositeType Ty, + bool isLocalToUnit, bool isDefinition, + unsigned ScopeLine, unsigned Flags, + bool isOptimized, Function *Fn, + MDNode *TParams, MDNode *Decl) { + return createFunctionHelper(VMContext, Context, Name, LinkageName, File, + LineNo, Ty, isLocalToUnit, isDefinition, ScopeLine, + Flags, isOptimized, Fn, TParams, Decl, + [&] (ArrayRef Elts) { + return MDNode::getTemporary(VMContext, Elts); + }); +} + +DISubprogram DIBuilder::createMethod(DIDescriptor Context, StringRef Name, + StringRef LinkageName, DIFile F, unsigned LineNo, DICompositeType Ty, - bool isLocalToUnit, - bool isDefinition, + bool isLocalToUnit, bool isDefinition, unsigned VK, unsigned VIndex, - MDNode *VTableHolder, - unsigned Flags, - bool isOptimized, - Function *Fn, + DIType VTableHolder, unsigned Flags, + bool isOptimized, Function *Fn, MDNode *TParam) { assert(Ty.getTag() == dwarf::DW_TAG_subroutine_type && "function types should be subroutines"); - Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) }; - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_subprogram), - F.getFileNode(), - getNonCompileUnitScope(Context), - MDString::get(VMContext, Name), - MDString::get(VMContext, Name), - MDString::get(VMContext, LinkageName), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), - Ty, - ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit), - ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition), - ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK), - ConstantInt::get(Type::getInt32Ty(VMContext), VIndex), - VTableHolder, - ConstantInt::get(Type::getInt32Ty(VMContext), Flags), - ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), - Fn, - TParam, - Constant::getNullValue(Type::getInt32Ty(VMContext)), - MDNode::getTemporary(VMContext, TElts), - // FIXME: Do we want to use different scope/lines? - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo) - }; + assert(getNonCompileUnitScope(Context) && + "Methods should have both a Context and a context that isn't " + "the compile unit."); + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_subprogram) + .concat(Name) + .concat(Name) + .concat(LinkageName) + .concat(LineNo) + .concat(isLocalToUnit) + .concat(isDefinition) + .concat(VK) + .concat(VIndex) + .concat(Flags) + .concat(isOptimized) + .concat(LineNo) + // FIXME: Do we want to use different scope/lines? + .get(VMContext), + F.getFileNode(), DIScope(Context).getRef(), Ty, + VTableHolder.getRef(), Fn, TParam, nullptr, nullptr}; MDNode *Node = MDNode::get(VMContext, Elts); if (isDefinition) AllSubprograms.push_back(Node); DISubprogram S(Node); - assert(S.Verify() && "createMethod should return a valid DISubprogram"); + assert(S.isSubprogram() && "createMethod should return a valid DISubprogram"); return S; } -/// createNameSpace - This creates new descriptor for a namespace -/// with the specified parent scope. DINameSpace DIBuilder::createNameSpace(DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNo) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_namespace), - File.getFileNode(), - getNonCompileUnitScope(Scope), - MDString::get(VMContext, Name), - ConstantInt::get(Type::getInt32Ty(VMContext), LineNo) - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_namespace) + .concat(Name) + .concat(LineNo) + .get(VMContext), + File.getFileNode(), getNonCompileUnitScope(Scope)}; DINameSpace R(MDNode::get(VMContext, Elts)); assert(R.Verify() && "createNameSpace should return a verifiable DINameSpace"); return R; } -/// createLexicalBlockFile - This creates a new MDNode that encapsulates -/// an existing scope with a new filename. DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope, - DIFile File) { - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block), - File.getFileNode(), - Scope - }; + DIFile File, + unsigned Discriminator) { + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_lexical_block) + .concat(Discriminator) + .get(VMContext), + File.getFileNode(), Scope}; DILexicalBlockFile R(MDNode::get(VMContext, Elts)); assert( R.Verify() && @@ -1128,43 +1077,50 @@ DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope, DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File, unsigned Line, unsigned Col) { - // Defeat MDNode uniqing for lexical blocks by using unique id. + // FIXME: This isn't thread safe nor the right way to defeat MDNode uniquing. + // I believe the right way is to have a self-referential element in the node. + // Also: why do we bother with line/column - they're not used and the + // documentation (SourceLevelDebugging.rst) claims the line/col are necessary + // for uniquing, yet then we have this other solution (because line/col were + // inadequate) anyway. Remove all 3 and replace them with a self-reference. + + // Defeat MDNode uniquing for lexical blocks by using unique id. static unsigned int unique_id = 0; - Value *Elts[] = { - GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block), - File.getFileNode(), - getNonCompileUnitScope(Scope), - ConstantInt::get(Type::getInt32Ty(VMContext), Line), - ConstantInt::get(Type::getInt32Ty(VMContext), Col), - ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++) - }; + Value *Elts[] = {HeaderBuilder::get(dwarf::DW_TAG_lexical_block) + .concat(Line) + .concat(Col) + .concat(unique_id++) + .get(VMContext), + File.getFileNode(), getNonCompileUnitScope(Scope)}; DILexicalBlock R(MDNode::get(VMContext, Elts)); assert(R.Verify() && "createLexicalBlock should return a verifiable DILexicalBlock"); return R; } -/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call. Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo, + DIExpression Expr, Instruction *InsertBefore) { assert(Storage && "no storage passed to dbg.declare"); - assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare"); + assert(VarInfo.isVariable() && + "empty or invalid DIVariable passed to dbg.declare"); if (!DeclareFn) DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare); - Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo }; + Value *Args[] = {MDNode::get(Storage->getContext(), Storage), VarInfo, Expr}; return CallInst::Create(DeclareFn, Args, "", InsertBefore); } -/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call. Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo, + DIExpression Expr, BasicBlock *InsertAtEnd) { assert(Storage && "no storage passed to dbg.declare"); - assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare"); + assert(VarInfo.isVariable() && + "empty or invalid DIVariable passed to dbg.declare"); if (!DeclareFn) DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare); - Value *Args[] = { MDNode::get(Storage->getContext(), Storage), VarInfo }; + Value *Args[] = {MDNode::get(Storage->getContext(), Storage), VarInfo, Expr}; // If this block already has a terminator then insert this intrinsic // before the terminator. @@ -1174,32 +1130,34 @@ Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo, return CallInst::Create(DeclareFn, Args, "", InsertAtEnd); } -/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call. Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset, DIVariable VarInfo, + DIExpression Expr, Instruction *InsertBefore) { assert(V && "no value passed to dbg.value"); - assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value"); + assert(VarInfo.isVariable() && + "empty or invalid DIVariable passed to dbg.value"); if (!ValueFn) ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value); - Value *Args[] = { MDNode::get(V->getContext(), V), - ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), - VarInfo }; + Value *Args[] = {MDNode::get(V->getContext(), V), + ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), + VarInfo, Expr}; return CallInst::Create(ValueFn, Args, "", InsertBefore); } -/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call. Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset, DIVariable VarInfo, + DIExpression Expr, BasicBlock *InsertAtEnd) { assert(V && "no value passed to dbg.value"); - assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value"); + assert(VarInfo.isVariable() && + "empty or invalid DIVariable passed to dbg.value"); if (!ValueFn) ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value); - Value *Args[] = { MDNode::get(V->getContext(), V), - ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), - VarInfo }; + Value *Args[] = {MDNode::get(V->getContext(), V), + ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), + VarInfo, Expr}; return CallInst::Create(ValueFn, Args, "", InsertAtEnd); }