1/*
2 * Copyright (c) 2018, Red Hat, Inc. All rights reserved.
3 *
4 * This code is free software; you can redistribute it and/or modify it
5 * under the terms of the GNU General Public License version 2 only, as
6 * published by the Free Software Foundation.
7 *
8 * This code is distributed in the hope that it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
11 * version 2 for more details (a copy is included in the LICENSE file that
12 * accompanied this code).
13 *
14 * You should have received a copy of the GNU General Public License version
15 * 2 along with this work; if not, write to the Free Software Foundation,
16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
17 *
18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
19 * or visit www.oracle.com if you need additional information or have any
20 * questions.
21 *
22 */
23
24#ifndef CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
25#define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
26
27#include "asm/macroAssembler.hpp"
28#include "gc/shared/barrierSetAssembler.hpp"
29#ifdef COMPILER1
30class LIR_Assembler;
31class ShenandoahPreBarrierStub;
32class ShenandoahLoadReferenceBarrierStub;
33class StubAssembler;
34#endif
35class StubCodeGenerator;
36
37class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
38private:
39
40 static address _shenandoah_lrb;
41
42 void satb_write_barrier_pre(MacroAssembler* masm,
43 Register obj,
44 Register pre_val,
45 Register thread,
46 Register tmp,
47 bool tosca_live,
48 bool expand_call);
49
50 void shenandoah_write_barrier_pre(MacroAssembler* masm,
51 Register obj,
52 Register pre_val,
53 Register thread,
54 Register tmp,
55 bool tosca_live,
56 bool expand_call);
57
58 void resolve_forward_pointer(MacroAssembler* masm, Register dst, Register tmp = noreg);
59 void resolve_forward_pointer_not_null(MacroAssembler* masm, Register dst, Register tmp = noreg);
60
61 void load_reference_barrier_not_null(MacroAssembler* masm, Register dst);
62
63 void storeval_barrier_impl(MacroAssembler* masm, Register dst, Register tmp);
64
65 address generate_shenandoah_lrb(StubCodeGenerator* cgen);
66
67 void save_vector_registers(MacroAssembler* masm);
68 void restore_vector_registers(MacroAssembler* masm);
69
70public:
71 static address shenandoah_lrb();
72
73 void storeval_barrier(MacroAssembler* masm, Register dst, Register tmp);
74#ifdef COMPILER1
75 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
76 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
77 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
78#endif
79
80 void load_reference_barrier(MacroAssembler* masm, Register dst);
81
82 void cmpxchg_oop(MacroAssembler* masm,
83 Register res, Address addr, Register oldval, Register newval,
84 bool exchange, Register tmp1, Register tmp2);
85 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
86 Register src, Register dst, Register count);
87 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
88 Register src, Register dst, Register count);
89 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
90 Register dst, Address src, Register tmp1, Register tmp_thread);
91 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
92 Address dst, Register val, Register tmp1, Register tmp2);
93
94 virtual void barrier_stubs_init();
95
96};
97
98#endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
99