Patch for generation of weak write barriers for objc
__weak objects.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59560 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index d57710c..91b8587 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -130,8 +130,10 @@
const ObjCAtThrowStmt &S);
virtual void EmitSynchronizedStmt(CodeGen::CodeGenFunction &CGF,
const ObjCAtSynchronizedStmt &S);
- virtual llvm::Value * EmitObjCWeakCall(CodeGen::CodeGenFunction &CGF,
+ virtual llvm::Value * EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF,
llvm::Value *AddrWeakObj);
+ virtual void EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *src, llvm::Value *dst);
};
} // end anonymous namespace
@@ -970,12 +972,18 @@
CGF.ErrorUnsupported(&S, "@synchronized statement");
}
-llvm::Value * CGObjCGNU::EmitObjCWeakCall(CodeGen::CodeGenFunction &CGF,
+llvm::Value * CGObjCGNU::EmitObjCWeakRead(CodeGen::CodeGenFunction &CGF,
llvm::Value *AddrWeakObj)
{
return 0;
}
+void CGObjCGNU::EmitObjCWeakAssign(CodeGen::CodeGenFunction &CGF,
+ llvm::Value *src, llvm::Value *dst)
+{
+ return;
+}
+
CodeGen::CGObjCRuntime *CodeGen::CreateGNUObjCRuntime(CodeGen::CodeGenModule &CGM){
return new CGObjCGNU(CGM);
}