1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "asm/macroAssembler.inline.hpp"
  27 #include "gc/shared/modRefBarrierSetAssembler.hpp"
  28 
  29 #define __ masm->
  30 
  31 void ModRefBarrierSetAssembler::arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  32                                                    Register src, Register dst, Register count, RegSet saved_regs) {
  33 
  34   if (is_oop) {
  35     gen_write_ref_array_pre_barrier(masm, decorators, dst, count, saved_regs);
  36   }
  37 }
  38 
  39 void ModRefBarrierSetAssembler::arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, bool is_oop,
  40                                                    Register start, Register count, Register tmp,
  41                                                    RegSet saved_regs) {
  42   if (is_oop) {
  43     gen_write_ref_array_post_barrier(masm, decorators, start, count, tmp, saved_regs);
  44   }
  45 }
  46 
  47 void ModRefBarrierSetAssembler::store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
  48                                          Address dst, Register val, Register tmp1, Register tmp2) {
  49   if (type == T_OBJECT || type == T_ARRAY) {
  50     oop_store_at(masm, decorators, type, dst, val, tmp1, tmp2);
  51   } else {
  52     BarrierSetAssembler::store_at(masm, decorators, type, dst, val, tmp1, tmp2);
  53   }
  54 }