Refactored code gen for ivar access in preparation for

objc2 nonfragile ivar access code gen.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63541 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index 10ceee9c6b..bfe92b303e 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -140,6 +140,11 @@ public:
                                     llvm::Value *src, llvm::Value *dest);
   virtual void EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF,
                                         llvm::Value *src, llvm::Value *dest);
+  virtual llvm::Value *EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
+                                            llvm::Value *BaseValue,
+                                            const ObjCIvarDecl *Ivar,
+                                            const FieldDecl *Field,
+                                            unsigned CVRQualifiers);
 };
 } // end anonymous namespace
 
@@ -1028,6 +1033,17 @@ void CGObjCGNU::EmitObjCStrongCastAssign(CodeGen::CodeGenFunction &CGF,
   return;
 }
 
+llvm::Value *CGObjCGNU::EmitObjCValueForIvar(CodeGen::CodeGenFunction &CGF,
+                                             llvm::Value *BaseValue,
+                                             const ObjCIvarDecl *Ivar,
+                                             const FieldDecl *Field,
+                                             unsigned CVRQualifiers) {
+  // TODO:  Add a special case for isa (index 0)
+  unsigned Index = CGM.getTypes().getLLVMFieldNo(Field);
+  llvm::Value *V = CGF.Builder.CreateStructGEP(BaseValue, Index, "tmp");
+  return V;
+}
+
 CodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){
   return new CGObjCGNU(CGM);
 }