rev 3419 : 7023898: Intrinsify AtomicLongFieldUpdater.getAndIncrement() Summary: use shorter instruction sequences for atomic add and atomic exchange when possible. Reviewed-by:
@@ -763,10 +763,15 @@ case lir_throw: throw_op(op->in_opr1(), op->in_opr2(), op->info()); break; + case lir_xadd: + case lir_xchg: + atomic_op(op->code(), op->in_opr1(), op->in_opr2(), op->result_opr(), op->tmp1_opr()); + break; + default: Unimplemented(); break; } }