Some refactoring of Ivar offset code gen.

in preparation for nonfragile ivar offset work.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64225 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 36 insertions, 3 deletions

diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 275bdf7a7c..43da911fc6 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -590,6 +590,9 @@ private:
                                       const ObjCIvarDecl *Ivar,
                                       const FieldDecl *Field,
                                       unsigned CVRQualifiers);
+  virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF,
+                                      ObjCInterfaceDecl *Interface,
+                                      const ObjCIvarDecl *Ivar);
 };
   
 class CGObjCNonFragileABIMac : public CGObjCCommonMac {
@@ -704,9 +707,12 @@ public:
   virtual llvm::Value *GenerateProtocolRef(CGBuilderTy &Builder,
                                            const ObjCProtocolDecl *PD);
   
-  virtual llvm::Function *GetPropertyGetFunction(){ return 0; }
-  virtual llvm::Function *GetPropertySetFunction()
-    { return 0; }
+  virtual llvm::Function *GetPropertyGetFunction(){ 
+    return ObjCTypes.GetPropertyFn;
+  }
+  virtual llvm::Function *GetPropertySetFunction(){ 
+    return ObjCTypes.SetPropertyFn; 
+  }
   virtual llvm::Function *EnumerationMutationFunction()
     { return 0; }
   
@@ -737,6 +743,10 @@ public:
                                       const ObjCIvarDecl *Ivar,
                                       const FieldDecl *Field,
                                       unsigned CVRQualifiers);
+  virtual llvm::Value *EmitIvarOffset(CodeGen::CodeGenFunction &CGF,
+                                      ObjCInterfaceDecl *Interface,
+                                      const ObjCIvarDecl *Ivar);
+  virtual bool LateBoundIVars() const { return true; }
 };
   
 } // end anonymous namespace
@@ -2170,6 +2180,22 @@ LValue CGObjCMac::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
   return LV;
 }
 
+llvm::Value *CGObjCMac::EmitIvarOffset(CodeGen::CodeGenFunction &CGF,
+                                       ObjCInterfaceDecl *Interface,
+                                       const ObjCIvarDecl *Ivar) {
+  const llvm::Type *InterfaceLTy =
+  CGM.getTypes().ConvertType(CGM.getContext().getObjCInterfaceType(Interface));
+  const llvm::StructLayout *Layout =
+  CGM.getTargetData().getStructLayout(cast<llvm::StructType>(InterfaceLTy));
+  FieldDecl *Field = Interface->lookupFieldDeclForIvar(CGM.getContext(), Ivar);
+  uint64_t Offset =
+  Layout->getElementOffset(CGM.getTypes().getLLVMFieldNo(Field));
+  
+  return llvm::ConstantInt::get(
+                            CGM.getTypes().ConvertType(CGM.getContext().LongTy),
+                            Offset);
+}
+
 /* *** Private Interface *** */
 
 /// EmitImageInfo - Emit the image info marker used to encode some module
@@ -4280,6 +4306,13 @@ LValue CGObjCNonFragileABIMac::EmitObjCValueForIvar(
   return LV;
 }
 
+llvm::Value *CGObjCNonFragileABIMac::EmitIvarOffset(
+                                       CodeGen::CodeGenFunction &CGF,
+                                       ObjCInterfaceDecl *Interface,
+                                       const ObjCIvarDecl *Ivar) {
+  return 0;
+}
+
 CodeGen::RValue CGObjCNonFragileABIMac::EmitMessageSend(
                                            CodeGen::CodeGenFunction &CGF,
                                            QualType ResultType,