Let Objective-C front-end identify class extension, in dwarf output, using an attribute DW_AT_APPLE_objc_class_extension.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131238 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/llvm/Analysis/DebugInfo.h b/include/llvm/Analysis/DebugInfo.h
index c6cc8f7..a01b5a3 100644
--- a/include/llvm/Analysis/DebugInfo.h
+++ b/include/llvm/Analysis/DebugInfo.h
@@ -49,15 +49,16 @@
class DIDescriptor {
public:
enum {
- FlagPrivate = 1 << 0,
- FlagProtected = 1 << 1,
- FlagFwdDecl = 1 << 2,
- FlagAppleBlock = 1 << 3,
- FlagBlockByrefStruct = 1 << 4,
- FlagVirtual = 1 << 5,
- FlagArtificial = 1 << 6,
- FlagExplicit = 1 << 7,
- FlagPrototyped = 1 << 8
+ FlagPrivate = 1 << 0,
+ FlagProtected = 1 << 1,
+ FlagFwdDecl = 1 << 2,
+ FlagAppleBlock = 1 << 3,
+ FlagBlockByrefStruct = 1 << 4,
+ FlagVirtual = 1 << 5,
+ FlagArtificial = 1 << 6,
+ FlagExplicit = 1 << 7,
+ FlagPrototyped = 1 << 8,
+ FlagObjcClassExtension = 1 << 9
};
protected:
const MDNode *DbgNode;
@@ -271,6 +272,9 @@
bool isArtificial() const {
return (getFlags() & FlagArtificial) != 0;
}
+ bool isObjcClassExtension() const {
+ return (getFlags() & FlagObjcClassExtension) != 0;
+ }
bool isValid() const {
return DbgNode && (isBasicType() || isDerivedType() || isCompositeType());
}
diff --git a/include/llvm/Support/Dwarf.h b/include/llvm/Support/Dwarf.h
index f6d680b..7fecf6f 100644
--- a/include/llvm/Support/Dwarf.h
+++ b/include/llvm/Support/Dwarf.h
@@ -235,6 +235,7 @@
DW_AT_APPLE_property_getter = 0x3fe9,
DW_AT_APPLE_property_setter = 0x3fea,
DW_AT_APPLE_property_attribute = 0x3feb,
+ DW_AT_APPLE_objc_class_extension = 0x3fec,
// Attribute form encodings
DW_FORM_addr = 0x01,
diff --git a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
index 98af7a4..4eb4094 100644
--- a/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
@@ -766,6 +766,10 @@
addToContextOwner(&Buffer, Context);
}
+ if (CTy.isObjcClassExtension())
+ addUInt(&Buffer, dwarf::DW_AT_APPLE_objc_class_extension,
+ dwarf::DW_FORM_flag, 1);
+
if (Tag == dwarf::DW_TAG_class_type)
addTemplateParams(Buffer, CTy.getTemplateParams());
diff --git a/lib/Support/Dwarf.cpp b/lib/Support/Dwarf.cpp
index 74a9fda..cbf8aad 100644
--- a/lib/Support/Dwarf.cpp
+++ b/lib/Support/Dwarf.cpp
@@ -207,6 +207,7 @@
case DW_AT_APPLE_property_getter: return "DW_AT_APPLE_property_getter";
case DW_AT_APPLE_property_setter: return "DW_AT_APPLE_property_setter";
case DW_AT_APPLE_property_attribute: return "DW_AT_APPLE_property_attribute";
+ case DW_AT_APPLE_objc_class_extension: return "DW_AT_APPLE_objc_class_extension";
}
return 0;
}