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-rw-r--r--lib/Sema/SemaObjCProperty.cpp4
-rw-r--r--test/SemaObjC/default-synthesize.m12
2 files changed, 16 insertions, 0 deletions
diff --git a/lib/Sema/SemaObjCProperty.cpp b/lib/Sema/SemaObjCProperty.cpp
index b2b6e13717..ff60599b85 100644
--- a/lib/Sema/SemaObjCProperty.cpp
+++ b/lib/Sema/SemaObjCProperty.cpp
@@ -930,6 +930,10 @@ void Sema::DefaultSynthesizeProperties (Scope *S, ObjCImplDecl* IMPDecl,
Prop->getPropertyImplementation() == ObjCPropertyDecl::Optional ||
IMPDecl->FindPropertyImplIvarDecl(Prop->getIdentifier()))
continue;
+ // Property may have been synthesized by user.
+ if (IMPDecl->FindPropertyImplDecl(Prop->getIdentifier()))
+ continue;
+
ActOnPropertyImplDecl(S, IMPDecl->getLocation(), IMPDecl->getLocation(),
true, DeclPtrTy::make(IMPDecl),
Prop->getIdentifier(), Prop->getIdentifier());
diff --git a/test/SemaObjC/default-synthesize.m b/test/SemaObjC/default-synthesize.m
index 283ad260a9..0586daea87 100644
--- a/test/SemaObjC/default-synthesize.m
+++ b/test/SemaObjC/default-synthesize.m
@@ -103,3 +103,15 @@
@implementation C (Category) // expected-note 2 {{implementation is here}}
@end
+// Don't complain if a property is already @synthesized by usr.
+@interface D
+{
+}
+@property int PROP;
+@end
+
+@implementation D
+- (int) Meth { return self.PROP; }
+@synthesize PROP=IVAR;
+@end
+