1 files changed, 60 insertions, 0 deletions
diff --git a/gcc/testsuite/obj-c++.dg/objc-gc-2.mm b/gcc/testsuite/obj-c++.dg/objc-gc-2.mm
new file mode 100644
index 00000000000..a85e3ba14ed
--- /dev/null
+++ b/gcc/testsuite/obj-c++.dg/objc-gc-2.mm
@@ -0,0 +1,60 @@
+/* APPLE LOCAL file ObjC GC */
+/* A compile-only test for insertion of write barriers. */
+/* Developed by Ziemowit Laski  <zlaski@apple.com>  */
+/* { dg-do compile } */
+/* { dg-options "-fnext-runtime -fobjc-gc -Wassign-intercept" } */
+
+#include <objc/objc.h>
+
+struct NSRect {
+  void *a;
+  id b;
+  __strong void *c;
+  __strong id *d;
+};
+  
+@protocol WebCoreImageRenderer
+- (void)drawImageInRect:(NSRect)ir fromRect:(NSRect)fr;
+- (void)release;
+- (void)new;
+- (BOOL)isNull;
+- (id <WebCoreImageRenderer>)copyWithZone:(int)z;
+- (id <WebCoreImageRenderer>)retainOrCopyIfNeeded;
+@end
+
+typedef id <WebCoreImageRenderer> WebCoreImageRendererPtr;
+
+class QPixmap {
+public:
+    QPixmap() {}
+    ~QPixmap() {}
+
+    void resize(int w, int h);
+
+public:
+    WebCoreImageRendererPtr imageRenderer;
+    __strong void *somePtr;
+    mutable bool needCopyOnWrite;
+};
+
+void inline_func(void) {
+  QPixmap *pix;
+
+  pix->imageRenderer = 0; /* { dg-warning "strong\\-cast may possibly be needed" } */
+  pix->somePtr = 0; /* { dg-warning "strong\\-cast may possibly be needed" } */
+  (__strong id)pix->somePtr = 0; /* { dg-warning "strong\\-cast assignment" } */
+  (__strong id)pix->imageRenderer = 0; /* { dg-warning "strong\\-cast assignment" } */
+}
+
+void QPixmap::resize(int w, int h)
+{
+    if (needCopyOnWrite) {
+        id <WebCoreImageRenderer> newImageRenderer = [imageRenderer copyWithZone:0];
+        [imageRenderer release];
+        imageRenderer = newImageRenderer; /* { dg-warning "strong\\-cast may possibly be needed" } */
+        somePtr = 0; /* { dg-warning "strong\\-cast may possibly be needed" } */
+        (__strong id)imageRenderer = newImageRenderer; /* { dg-warning "strong\\-cast assignment" } */
+        needCopyOnWrite = false;
+    }
+    [imageRenderer new];
+}