}
DIBuilder::DIBuilder(Module &m)
- : M(m), VMContext(M.getContext()), 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() {
/// N.
static MDNode *getNonCompileUnitScope(MDNode *N) {
if (DIDescriptor(N).isCompileUnit())
- return NULL;
+ return nullptr;
return N;
}
StringRef Producer, bool isOptimized,
StringRef Flags, unsigned RunTimeVer,
StringRef SplitName,
- DebugEmissionKind Kind) {
+ DebugEmissionKind Kind,
+ bool EmitDebugInfo) {
- assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) ||
+ 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() &&
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(CUNode);
+ // 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<TrackingVH<MDNode> > &AllImportedModules) {
+createImportedModule(LLVMContext &C, dwarf::Tag Tag, DIScope Context,
+ Value *NS, unsigned Line, StringRef Name,
+ SmallVectorImpl<TrackingVH<MDNode>> &AllImportedModules) {
const MDNode *R;
if (Name.empty()) {
Value *Elts[] = {
- GetTagConstant(C, dwarf::DW_TAG_imported_module),
+ GetTagConstant(C, Tag),
Context,
NS,
ConstantInt::get(Type::getInt32Ty(C), Line),
R = MDNode::get(C, Elts);
} else {
Value *Elts[] = {
- GetTagConstant(C, dwarf::DW_TAG_imported_module),
+ GetTagConstant(C, Tag),
Context,
NS,
ConstantInt::get(Type::getInt32Ty(C), Line),
}
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(TrackingVH<MDNode>(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
// size, alignment, offset and flags are always empty here.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
- NULL, // Filename
- NULL, // Unused
+ nullptr, // Filename
+ nullptr, // Unused
MDString::get(VMContext, Name),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
// offset and flags are always empty here.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
- NULL, // File/directory name
- NULL, // Unused
+ nullptr, // File/directory name
+ nullptr, // Unused
MDString::get(VMContext, Name),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
// Qualified types are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
- NULL, // Filename
- NULL, // Unused
+ nullptr, // Filename
+ nullptr, // Unused
MDString::get(VMContext, StringRef()), // Empty name.
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
// Pointer types are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
- NULL, // Filename
- NULL, // Unused
+ nullptr, // Filename
+ nullptr, // Unused
MDString::get(VMContext, Name),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
// Pointer types are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_ptr_to_member_type),
- NULL, // Filename
- NULL, // Unused
- NULL,
+ nullptr, // Filename
+ nullptr, // Unused
+ nullptr,
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
// References are encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
- NULL, // Filename
- NULL, // TheCU,
- NULL, // Name
+ nullptr, // Filename
+ nullptr, // TheCU,
+ nullptr, // Name
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
DIDerivedType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
unsigned LineNo, DIDescriptor Context) {
// typedefs are encoded in DIDerivedType format.
- assert(Ty.isType() && "Invalid typedef type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
File.getFileNode(),
assert(FriendTy.isType() && "Invalid friend type!");
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_friend),
- NULL,
+ nullptr,
Ty.getRef(),
- NULL, // Name
+ nullptr, // Name
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
// TAG_inheritance is encoded in DIDerivedType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
- NULL,
+ nullptr,
Ty.getRef(),
- NULL, // Name
+ nullptr, // 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::getInt32Ty(VMContext), 0),
VTableHolder.getRef(),
TemplateParams,
- UniqueIdentifier.empty() ? NULL : MDString::get(VMContext, UniqueIdentifier)
+ UniqueIdentifier.empty() ? nullptr
+ : MDString::get(VMContext, UniqueIdentifier)
};
DICompositeType R(MDNode::get(VMContext, Elts));
assert(R.isCompositeType() &&
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
VTableHolder.getRef(),
- NULL,
- UniqueIdentifier.empty() ? NULL : MDString::get(VMContext, UniqueIdentifier)
+ nullptr,
+ UniqueIdentifier.empty() ? nullptr
+ : MDString::get(VMContext, UniqueIdentifier)
};
DICompositeType R(MDNode::get(VMContext, Elts));
assert(R.isCompositeType() &&
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
- NULL,
+ nullptr,
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
- NULL,
- NULL,
- UniqueIdentifier.empty() ? NULL : MDString::get(VMContext, UniqueIdentifier)
+ nullptr,
+ nullptr,
+ UniqueIdentifier.empty() ? nullptr
+ : MDString::get(VMContext, UniqueIdentifier)
};
DICompositeType R(MDNode::get(VMContext, Elts));
if (!UniqueIdentifier.empty())
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
Constant::getNullValue(Type::getInt32Ty(VMContext)),
- NULL,
+ nullptr,
MDString::get(VMContext, ""),
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), Flags), // Flags
- NULL,
+ nullptr,
ParameterTypes,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
- NULL,
- NULL,
- NULL // Type Identifer
+ nullptr,
+ nullptr,
+ nullptr // Type Identifer
};
return DICompositeType(MDNode::get(VMContext, Elts));
}
UnderlyingType.getRef(),
Elements,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
- NULL,
- NULL,
- UniqueIdentifier.empty() ? NULL : MDString::get(VMContext, UniqueIdentifier)
+ nullptr,
+ nullptr,
+ UniqueIdentifier.empty() ? nullptr
+ : MDString::get(VMContext, UniqueIdentifier)
};
DICompositeType CTy(MDNode::get(VMContext, Elts));
AllEnumTypes.push_back(CTy);
// TAG_array_type is encoded in DICompositeType format.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
- NULL, // Filename/Directory,
- NULL, // Unused
+ nullptr, // Filename/Directory,
+ nullptr, // Unused
MDString::get(VMContext, ""),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
Ty.getRef(),
Subscripts,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
- NULL,
- NULL,
- NULL // Type Identifer
+ nullptr,
+ nullptr,
+ nullptr // Type Identifer
};
return DICompositeType(MDNode::get(VMContext, Elts));
}
// A vector is an array type with the FlagVector flag applied.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
- NULL, // Filename/Directory,
- NULL, // Unused
+ nullptr, // Filename/Directory,
+ nullptr, // Unused
MDString::get(VMContext, ""),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
Ty.getRef(),
Subscripts,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
- NULL,
- NULL,
- NULL // Type Identifer
+ nullptr,
+ nullptr,
+ nullptr // Type Identifer
};
return DICompositeType(MDNode::get(VMContext, Elts));
}
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Offset
ConstantInt::get(Type::getInt32Ty(VMContext), DIDescriptor::FlagFwdDecl),
- NULL,
+ nullptr,
DIArray(),
ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang),
- NULL,
- NULL, //TemplateParams
- UniqueIdentifier.empty() ? NULL : MDString::get(VMContext, UniqueIdentifier)
+ 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.
+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(),
+ DIScope(getNonCompileUnitScope(Scope)).getRef(),
+ 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), // Offset
+ ConstantInt::get(Type::getInt32Ty(VMContext), DIDescriptor::FlagFwdDecl),
+ nullptr,
+ DIArray(),
+ ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang),
+ nullptr,
+ nullptr, //TemplateParams
+ UniqueIdentifier.empty() ? nullptr
+ : MDString::get(VMContext, UniqueIdentifier)
};
MDNode *Node = MDNode::getTemporary(VMContext, Elts);
DICompositeType RetTy(Node);
DIGlobalVariable DIBuilder::createGlobalVariable(StringRef Name,
StringRef LinkageName,
DIFile F, unsigned LineNumber,
- DIType Ty, bool isLocalToUnit,
+ DITypeRef Ty, bool isLocalToUnit,
Value *Val) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
Constant::getNullValue(Type::getInt32Ty(VMContext)),
- NULL, // TheCU,
+ nullptr, // TheCU,
MDString::get(VMContext, Name),
MDString::get(VMContext, Name),
MDString::get(VMContext, LinkageName),
/// \brief Create a new descriptor for the specified global.
DIGlobalVariable DIBuilder::createGlobalVariable(StringRef Name, DIFile F,
- unsigned LineNumber, DIType Ty,
+ unsigned LineNumber,
+ DITypeRef Ty,
bool isLocalToUnit,
Value *Val) {
return createGlobalVariable(Name, Name, F, LineNumber, Ty, isLocalToUnit,
StringRef Name,
StringRef LinkageName,
DIFile F, unsigned LineNumber,
- DIType Ty, bool isLocalToUnit,
+ DITypeRef Ty,
+ bool isLocalToUnit,
Value *Val, MDNode *Decl) {
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
/// 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.isScope()) &&
"createLocalVariable should be called with a valid Context");
- assert(Ty.isType() &&
- "createLocalVariable should be called with a valid type");
Value *Elts[] = {
GetTagConstant(VMContext, Tag),
getNonCompileUnitScope(Scope),
DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
StringRef Name, DIFile F,
unsigned LineNo,
- DIType Ty, ArrayRef<Value *> Addr,
+ DITypeRef Ty,
+ ArrayRef<Value *> Addr,
unsigned ArgNo) {
- SmallVector<Value *, 15> 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());
-
+ assert(Addr.size() > 0 && "complex address is empty");
+ Value *Elts[] = {
+ GetTagConstant(VMContext, Tag),
+ getNonCompileUnitScope(Scope),
+ MDString::get(VMContext, Name),
+ F,
+ ConstantInt::get(Type::getInt32Ty(VMContext),
+ (LineNo | (ArgNo << 24))),
+ Ty,
+ Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ Constant::getNullValue(Type::getInt32Ty(VMContext)),
+ MDNode::get(VMContext, Addr)
+ };
return DIVariable(MDNode::get(VMContext, Elts));
}
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
- NULL,
+ nullptr,
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
Fn,
assert(getNonCompileUnitScope(Context) &&
"Methods should have both a Context and a context that isn't "
"the compile unit.");
- Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
F.getFileNode(),
Fn,
TParam,
Constant::getNullValue(Type::getInt32Ty(VMContext)),
- MDNode::getTemporary(VMContext, TElts),
+ nullptr,
// FIXME: Do we want to use different scope/lines?
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
};
DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File,
unsigned Line, unsigned Col,
unsigned Discriminator) {
+ // 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[] = {
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