sync-2.m: New test.

        * objc.dg/sync-2.m: New test.
        * obj-c++.dg/sync-2.mm: New test.

From-SVN: r164585

gcc/testsuite/ChangeLog

+2010-09-24  Nicola Pero  <nicola.pero@meta-innovation.com>
+
+	* objc.dg/sync-2.m: New test.
+	* obj-c++.dg/sync-2.mm: New test.
+
 2010-09-24  Tobias Burnus  <burnus@net-b.de>
 
 	PR fortran/40571

gcc/testsuite/obj-c++.dg/sync-2.mm

+/* Make sure that @synchronized parses and a very basic test runs.  */
+/* { dg-options "-fobjc-exceptions -fgnu-runtime" } */
+
+#include "../objc-obj-c++-shared/Object1.h"
+
+int main (void)
+{
+  Object *a = [Object new];
+  Object *b = [Object new];
+  Object *c = [Object new];
+
+  /* This single-threaded test just checks that @synchronized() uses a
+     recursive mutex, and that the runtime at least doesn't crash
+     immediately upon finding it.
+  */
+  @synchronized (a)
+    {
+      @synchronized (a)
+	{
+	  @synchronized (b)
+	    {
+	      @synchronized (b)
+		{
+		  @synchronized (c)
+		    {
+		      @synchronized (c)
+			{
+			  return 0;
+			}
+		    }
+		}
+	    }
+	}
+    }
+}

gcc/testsuite/objc.dg/sync-2.m

+/* Make sure that @synchronized parses and a very basic test runs.  */
+/* { dg-options "-fobjc-exceptions -fgnu-runtime" } */
+
+#include "../objc-obj-c++-shared/Object1.h"
+
+int main (void)
+{
+  Object *a = [Object new];
+  Object *b = [Object new];
+  Object *c = [Object new];
+
+  /* This single-threaded test just checks that @synchronized() uses a
+     recursive mutex, and that the runtime at least doesn't crash
+     immediately upon finding it.
+  */
+  @synchronized (a)
+    {
+      @synchronized (a)
+	{
+	  @synchronized (b)
+	    {
+	      @synchronized (b)
+		{
+		  @synchronized (c)
+		    {
+		      @synchronized (c)
+			{
+			  return 0;
+			}
+		    }
+		}
+	    }
+	}
+    }
+}