Remove HasSynthBitfield and all callers/writers/etc. Also remove

previous ResetObjCLayout calls since this is now handled in Sema.

Part of rdar://11842763

llvm-svn: 160527

5 files changed, 4 insertions, 24 deletions

diff --git a/clang/lib/AST/DeclObjC.cpp b/clang/lib/AST/DeclObjC.cpp
index 37fb0391425..39f09063e96 100644
--- a/clang/lib/AST/DeclObjC.cpp
+++ b/clang/lib/AST/DeclObjC.cpp
@@ -922,16 +922,10 @@ ObjCIvarDecl *ObjCIvarDecl::Create(ASTContext &C, ObjCContainerDecl *DC,
     // decl contexts, the previously built IvarList must be rebuilt.
     ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(DC);
     if (!ID) {
-      if (ObjCImplementationDecl *IM = dyn_cast<ObjCImplementationDecl>(DC)) {
+      if (ObjCImplementationDecl *IM = dyn_cast<ObjCImplementationDecl>(DC))
         ID = IM->getClassInterface();
-        if (BW)
-          IM->setHasSynthBitfield(true);
-      } else {
-        ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(DC);
-        ID = CD->getClassInterface();
-        if (BW)
-          CD->setHasSynthBitfield(true);
-      }
+      else
+        ID = cast<ObjCCategoryDecl>(DC)->getClassInterface();
     }
     ID->setIvarList(0);
   }
diff --git a/clang/lib/AST/DumpXML.cpp b/clang/lib/AST/DumpXML.cpp
index 4df692d9a51..c5b3c6875b5 100644
--- a/clang/lib/AST/DumpXML.cpp
+++ b/clang/lib/AST/DumpXML.cpp
@@ -778,7 +778,6 @@ struct XMLDumper : public XMLDeclVisitor<XMLDumper>,
   // ObjCCategoryDecl
   void visitObjCCategoryDeclAttrs(ObjCCategoryDecl *D) {
     setFlag("extension", D->IsClassExtension());
-    setFlag("synth_bitfield", D->hasSynthBitfield());
   }
   void visitObjCCategoryDeclChildren(ObjCCategoryDecl *D) {
     visitDeclRef("interface", D->getClassInterface());
@@ -804,7 +803,6 @@ struct XMLDumper : public XMLDeclVisitor<XMLDumper>,
 
   // ObjCImplementationDecl
   void visitObjCImplementationDeclAttrs(ObjCImplementationDecl *D) {
-    setFlag("synth_bitfield", D->hasSynthBitfield());
     set("identifier", D->getName());
   }
   void visitObjCImplementationDeclChildren(ObjCImplementationDecl *D) {
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 22ac1154840..a66641510ac 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2586,14 +2586,8 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
 
   // Forward declarations, no (immediate) code generation.
   case Decl::ObjCInterface:
+  case Decl::ObjCCategory:
     break;
-  
-  case Decl::ObjCCategory: {
-    ObjCCategoryDecl *CD = cast<ObjCCategoryDecl>(D);
-    if (CD->IsClassExtension() && CD->hasSynthBitfield())
-      Context.ResetObjCLayout(CD->getClassInterface());
-    break;
-  }
 
   case Decl::ObjCProtocol: {
     ObjCProtocolDecl *Proto = cast<ObjCProtocolDecl>(D);
@@ -2610,8 +2604,6 @@ void CodeGenModule::EmitTopLevelDecl(Decl *D) {
 
   case Decl::ObjCImplementation: {
     ObjCImplementationDecl *OMD = cast<ObjCImplementationDecl>(D);
-    if (LangOpts.ObjCRuntime.isNonFragile() && OMD->hasSynthBitfield())
-      Context.ResetObjCLayout(OMD->getClassInterface());
     EmitObjCPropertyImplementations(OMD);
     EmitObjCIvarInitializations(OMD);
     ObjCRuntime->GenerateClass(OMD);
diff --git a/clang/lib/Serialization/ASTReaderDecl.cpp b/clang/lib/Serialization/ASTReaderDecl.cpp
index 25f89adc7fa..cb21f82600e 100644
--- a/clang/lib/Serialization/ASTReaderDecl.cpp
+++ b/clang/lib/Serialization/ASTReaderDecl.cpp
@@ -803,7 +803,6 @@ void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
     ProtoLocs.push_back(ReadSourceLocation(Record, Idx));
   CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
                       Reader.getContext());
-  CD->setHasSynthBitfield(Record[Idx++]);
 }
 
 void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
@@ -849,7 +848,6 @@ void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
   D->setIvarRBraceLoc(ReadSourceLocation(Record, Idx));
   llvm::tie(D->IvarInitializers, D->NumIvarInitializers)
       = Reader.ReadCXXCtorInitializers(F, Record, Idx);
-  D->setHasSynthBitfield(Record[Idx++]);
 }
 
 
diff --git a/clang/lib/Serialization/ASTWriterDecl.cpp b/clang/lib/Serialization/ASTWriterDecl.cpp
index 21ba4d0374e..602943b9ba5 100644
--- a/clang/lib/Serialization/ASTWriterDecl.cpp
+++ b/clang/lib/Serialization/ASTWriterDecl.cpp
@@ -561,7 +561,6 @@ void ASTDeclWriter::VisitObjCCategoryDecl(ObjCCategoryDecl *D) {
          PL = D->protocol_loc_begin(), PLEnd = D->protocol_loc_end();
        PL != PLEnd; ++PL)
     Writer.AddSourceLocation(*PL, Record);
-  Record.push_back(D->hasSynthBitfield());
   Code = serialization::DECL_OBJC_CATEGORY;
 }
 
@@ -609,7 +608,6 @@ void ASTDeclWriter::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
   Writer.AddSourceLocation(D->getIvarRBraceLoc(), Record);
   Writer.AddCXXCtorInitializers(D->IvarInitializers, D->NumIvarInitializers,
                                 Record);
-  Record.push_back(D->hasSynthBitfield());
   Code = serialization::DECL_OBJC_IMPLEMENTATION;
 }