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#ifndef CPU_X86_GC_G1_G1BARRIERSETASSEMBLER_X86_HPP
26#define CPU_X86_GC_G1_G1BARRIERSETASSEMBLER_X86_HPP
27
28#include "asm/macroAssembler.hpp"
29#include "gc/shared/modRefBarrierSetAssembler.hpp"
30
31class LIR_Assembler;
32class StubAssembler;
33class G1PreBarrierStub;
34class G1PostBarrierStub;
35
36class G1BarrierSetAssembler: public ModRefBarrierSetAssembler {
37 protected:
38 virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count);
39 virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count, Register tmp);
40
41 void g1_write_barrier_pre(MacroAssembler* masm,
42 Register obj,
43 Register pre_val,
44 Register thread,
45 Register tmp,
46 bool tosca_live,
47 bool expand_call);
48
49 void g1_write_barrier_post(MacroAssembler* masm,
50 Register store_addr,
51 Register new_val,
52 Register thread,
53 Register tmp,
54 Register tmp2);
55
56 virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
57 Address dst, Register val, Register tmp1, Register tmp2);
58
59 public:
60 void gen_pre_barrier_stub(LIR_Assembler* ce, G1PreBarrierStub* stub);
61 void gen_post_barrier_stub(LIR_Assembler* ce, G1PostBarrierStub* stub);
62
63 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
64 void generate_c1_post_barrier_runtime_stub(StubAssembler* sasm);
65
66 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
67 Register dst, Address src, Register tmp1, Register tmp_thread);
68};
69
70#endif // CPU_X86_GC_G1_G1BARRIERSETASSEMBLER_X86_HPP
71