Add RunTimeLang to Class and Enumeration DIBuilder functions (#72011)

RunTimeLang is already supported by DICompositeType, and already used by
structs and unions. Add a new parameter in the class and enumeration
create methods, so they can use the RunTimeLang attribute as well.

Author: augusto2112

clang/lib/CodeGen/CGDebugInfo.cpp

@@ -3380,9 +3380,9 @@ llvm::DIType *CGDebugInfo::CreateTypeDefinition(const EnumType *Ty) {
   unsigned Line = getLineNumber(ED->getLocation());
   llvm::DIScope *EnumContext = getDeclContextDescriptor(ED);
   llvm::DIType *ClassTy = getOrCreateType(ED->getIntegerType(), DefUnit);
-  return DBuilder.createEnumerationType(EnumContext, ED->getName(), DefUnit,
-                                        Line, Size, Align, EltArray, ClassTy,
-                                        Identifier, ED->isScoped());
+  return DBuilder.createEnumerationType(
+      EnumContext, ED->getName(), DefUnit, Line, Size, Align, EltArray, ClassTy,
+      /*RunTimeLang=*/0, Identifier, ED->isScoped());
 }
 
 llvm::DIMacro *CGDebugInfo::CreateMacro(llvm::DIMacroFile *Parent,

llvm/include/llvm/IR/DIBuilder.h

@@ -425,6 +425,7 @@ namespace llvm {
     /// \param OffsetInBits Member offset.
     /// \param Flags        Flags to encode member attribute, e.g. private
     /// \param Elements     class members.
+    /// \param RunTimeLang  Optional parameter, Objective-C runtime version.
     /// \param VTableHolder Debug info of the base class that contains vtable
     ///                     for this type. This is used in
     ///                     DW_AT_containing_type. See DWARF documentation
@@ -435,8 +436,8 @@ namespace llvm {
         DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
         uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
         DINode::DIFlags Flags, DIType *DerivedFrom, DINodeArray Elements,
-        DIType *VTableHolder = nullptr, MDNode *TemplateParms = nullptr,
-        StringRef UniqueIdentifier = "");
+        unsigned RunTimeLang = 0, DIType *VTableHolder = nullptr,
+        MDNode *TemplateParms = nullptr, StringRef UniqueIdentifier = "");
 
     /// Create debugging information entry for a struct.
     /// \param Scope        Scope in which this struct is defined.
@@ -579,13 +580,15 @@ namespace llvm {
     /// \param AlignInBits    Member alignment.
     /// \param Elements       Enumeration elements.
     /// \param UnderlyingType Underlying type of a C++11/ObjC fixed enum.
+    /// \param RunTimeLang  Optional parameter, Objective-C runtime version.
     /// \param UniqueIdentifier A unique identifier for the enum.
-    /// \param IsScoped Boolean flag indicate if this is C++11/ObjC 'enum class'.
+    /// \param IsScoped Boolean flag indicate if this is C++11/ObjC 'enum
+    /// class'.
     DICompositeType *createEnumerationType(
         DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
         uint64_t SizeInBits, uint32_t AlignInBits, DINodeArray Elements,
-        DIType *UnderlyingType, StringRef UniqueIdentifier = "", bool IsScoped = false);
-
+        DIType *UnderlyingType, unsigned RunTimeLang = 0,
+        StringRef UniqueIdentifier = "", bool IsScoped = false);
     /// Create debugging information entry for a set.
     /// \param Scope          Scope in which this set is defined.
     /// \param Name           Set name.

llvm/lib/IR/DIBuilder.cpp

@@ -476,14 +476,15 @@ DICompositeType *DIBuilder::createClassType(
     DIScope *Context, StringRef Name, DIFile *File, unsigned LineNumber,
     uint64_t SizeInBits, uint32_t AlignInBits, uint64_t OffsetInBits,
     DINode::DIFlags Flags, DIType *DerivedFrom, DINodeArray Elements,
-    DIType *VTableHolder, MDNode *TemplateParams, StringRef UniqueIdentifier) {
+    unsigned RunTimeLang, DIType *VTableHolder, MDNode *TemplateParams,
+    StringRef UniqueIdentifier) {
   assert((!Context || isa<DIScope>(Context)) &&
          "createClassType should be called with a valid Context");
 
   auto *R = DICompositeType::get(
       VMContext, dwarf::DW_TAG_structure_type, Name, File, LineNumber,
       getNonCompileUnitScope(Context), DerivedFrom, SizeInBits, AlignInBits,
-      OffsetInBits, Flags, Elements, 0, VTableHolder,
+      OffsetInBits, Flags, Elements, RunTimeLang, VTableHolder,
       cast_or_null<MDTuple>(TemplateParams), UniqueIdentifier);
   trackIfUnresolved(R);
   return R;
@@ -534,15 +535,17 @@ DISubroutineType *DIBuilder::createSubroutineType(DITypeRefArray ParameterTypes,
   return DISubroutineType::get(VMContext, Flags, CC, ParameterTypes);
 }
 
-DICompositeType *DIBuilder::createEnumerationType(
-    DIScope *Scope, StringRef Name, DIFile *File, unsigned LineNumber,
-    uint64_t SizeInBits, uint32_t AlignInBits, DINodeArray Elements,
-    DIType *UnderlyingType, StringRef UniqueIdentifier, bool IsScoped) {
+DICompositeType *
+DIBuilder::createEnumerationType(DIScope *Scope, StringRef Name, DIFile *File,
+                                 unsigned LineNumber, uint64_t SizeInBits,
+                                 uint32_t AlignInBits, DINodeArray Elements,
+                                 DIType *UnderlyingType, unsigned RunTimeLang,
+                                 StringRef UniqueIdentifier, bool IsScoped) {
   auto *CTy = DICompositeType::get(
       VMContext, dwarf::DW_TAG_enumeration_type, Name, File, LineNumber,
       getNonCompileUnitScope(Scope), UnderlyingType, SizeInBits, AlignInBits, 0,
-      IsScoped ? DINode::FlagEnumClass : DINode::FlagZero, Elements, 0, nullptr,
-      nullptr, UniqueIdentifier);
+      IsScoped ? DINode::FlagEnumClass : DINode::FlagZero, Elements,
+      RunTimeLang, nullptr, nullptr, UniqueIdentifier);
   AllEnumTypes.emplace_back(CTy);
   trackIfUnresolved(CTy);
   return CTy;

llvm/lib/IR/DebugInfo.cpp

@@ -1465,13 +1465,12 @@ LLVMMetadataRef LLVMDIBuilderCreateClassType(LLVMDIBuilderRef Builder,
   auto Elts = unwrap(Builder)->getOrCreateArray({unwrap(Elements),
                                                  NumElements});
   return wrap(unwrap(Builder)->createClassType(
-                  unwrapDI<DIScope>(Scope), {Name, NameLen},
-                  unwrapDI<DIFile>(File), LineNumber,
-                  SizeInBits, AlignInBits, OffsetInBits,
-                  map_from_llvmDIFlags(Flags), unwrapDI<DIType>(DerivedFrom),
-                  Elts, unwrapDI<DIType>(VTableHolder),
-                  unwrapDI<MDNode>(TemplateParamsNode),
-                  {UniqueIdentifier, UniqueIdentifierLen}));
+      unwrapDI<DIScope>(Scope), {Name, NameLen}, unwrapDI<DIFile>(File),
+      LineNumber, SizeInBits, AlignInBits, OffsetInBits,
+      map_from_llvmDIFlags(Flags), unwrapDI<DIType>(DerivedFrom), Elts,
+      /*RunTimeLang=*/0, unwrapDI<DIType>(VTableHolder),
+      unwrapDI<MDNode>(TemplateParamsNode),
+      {UniqueIdentifier, UniqueIdentifierLen}));
 }
 
 LLVMMetadataRef