src/share/vm/gc_implementation/g1/g1ParScanThreadState.inline.hpp

rev 7471 : 8060025: Object copy time regressions after JDK-8031323 and JDK-8057536
Summary: Evaluate and improve object copy time by micro-optimizations and splitting out slow and fast paths aggressively.
Reviewed-by:
Contributed-by: Tony Printezis <tprintezis@twitter.com>, Thomas Schatzl <thomas.schatzl@oracle.com>
rev 7473 : imported patch mikael-refactor-cset-state

@@ -36,25 +36,25 @@
 
   // Although we never intentionally push references outside of the collection
   // set, due to (benign) races in the claim mechanism during RSet scanning more
   // than one thread might claim the same card. So the same card may be
   // processed multiple times. So redo this check.
-  const in_cset_state_t in_cset_state = _g1h->in_cset_state(obj);
-  if (InCSetState::is_in_cset(in_cset_state)) {
+  const InCSetState in_cset_state = _g1h->in_cset_state(obj);
+  if (in_cset_state.is_in_cset()) {
     oop forwardee;
     markOop m = obj->mark();
     if (m->is_marked()) {
       forwardee = (oop) m->decode_pointer();
     } else {
       forwardee = copy_to_survivor_space(in_cset_state, obj, m);
     }
     oopDesc::encode_store_heap_oop(p, forwardee);
-  } else if (InCSetState::is_humongous(in_cset_state)) {
+  } else if (in_cset_state.is_humongous()) {
     _g1h->set_humongous_is_live(obj);
   } else {
-    assert(InCSetState::is_not_in_cset(in_cset_state),
-           err_msg("In_cset_state must be NotInCSet here, but is %d", in_cset_state));
+    assert(in_cset_state.is_not_in_cset(),
+           err_msg("In_cset_state must be NotInCSet here, but is %d", in_cset_state.value()));
   }
 
   assert(obj != NULL, "Must be");
   update_rs(from, p, queue_num());
 }