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diff src/share/vm/prims/unsafe.cpp @ 845:df6caf649ff7

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6700789: G1: Enable use of compressed oops with G1 heaps Summary: Modifications to G1 so as to allow the use of compressed oops. Reviewed-by: apetrusenko, coleenp, jmasa, kvn, never, phh, tonyp
author ysr
date Tue, 14 Jul 2009 15:40:39 -0700
parents a45484ea312d
children e392695de029
line wrap: on
line diff
--- a/src/share/vm/prims/unsafe.cpp	Fri Jul 10 16:01:20 2009 -0700
+++ b/src/share/vm/prims/unsafe.cpp	Tue Jul 14 15:40:39 2009 -0700
@@ -1048,7 +1048,11 @@
   oop e = JNIHandles::resolve(e_h);
   oop p = JNIHandles::resolve(obj);
   HeapWord* addr = (HeapWord *)index_oop_from_field_offset_long(p, offset);
-  update_barrier_set_pre((void*)addr, e);
+  if (UseCompressedOops) {
+    update_barrier_set_pre((narrowOop*)addr, e);
+  } else {
+    update_barrier_set_pre((oop*)addr, e);
+  }
   oop res = oopDesc::atomic_compare_exchange_oop(x, addr, e);
   jboolean success  = (res == e);
   if (success)