This patch finalizes implementatin of weak_import
objective-c2 classes (radar 6815425).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@89157 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGObjCMac.cpp b/lib/CodeGen/CGObjCMac.cpp
index 2a89620..4355e66 100644
--- a/lib/CodeGen/CGObjCMac.cpp
+++ b/lib/CodeGen/CGObjCMac.cpp
@@ -5243,6 +5243,12 @@
/// decl.
llvm::Value *CGObjCNonFragileABIMac::GetClass(CGBuilderTy &Builder,
const ObjCInterfaceDecl *ID) {
+ if (ID->hasAttr<WeakImportAttr>()) {
+ std::string ClassName(getClassSymbolPrefix() + ID->getNameAsString());
+ llvm::GlobalVariable *ClassGV = GetClassGlobal(ClassName);
+ ClassGV->setLinkage(llvm::GlobalValue::ExternalWeakLinkage);
+ }
+
return EmitClassRef(Builder, ID);
}