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67 lines
2.6 KiB
C++
67 lines
2.6 KiB
C++
/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*
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*/
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#include "precompiled.hpp"
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#include "asm/macroAssembler.inline.hpp"
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#include "gc/shared/modRefBarrierSetAssembler.hpp"
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#define __ masm->
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void ModRefBarrierSetAssembler::arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
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Register src, Register dst, Register count) {
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if (type == T_OBJECT) {
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bool checkcast = (decorators & ARRAYCOPY_CHECKCAST) != 0;
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if (!checkcast) {
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// save arguments for barrier generation
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__ mov(dst, G1);
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__ mov(count, G5);
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gen_write_ref_array_pre_barrier(masm, decorators, G1, G5);
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} else {
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gen_write_ref_array_pre_barrier(masm, decorators, dst, count);
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}
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}
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}
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void ModRefBarrierSetAssembler::arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
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Register src, Register dst, Register count) {
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if (type == T_OBJECT) {
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bool checkcast = (decorators & ARRAYCOPY_CHECKCAST) != 0;
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if (!checkcast) {
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// O0 is used as temp register
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gen_write_ref_array_post_barrier(masm, decorators, G1, G5, O0);
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} else {
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gen_write_ref_array_post_barrier(masm, decorators, dst, count, O3);
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}
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}
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}
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void ModRefBarrierSetAssembler::store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
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Register val, Address dst, Register tmp) {
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if (type == T_OBJECT || type == T_ARRAY) {
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oop_store_at(masm, decorators, type, val, dst, tmp);
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} else {
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BarrierSetAssembler::store_at(masm, decorators, type, val, dst, tmp);
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}
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}
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