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
31 class LIR_Assembler;
32 class StubAssembler;
33 class G1PreBarrierStub;
34 class G1PostBarrierStub;
35 class G1BarrierStubC2;
36 class G1PreBarrierStubC2;
37 class G1PostBarrierStubC2;
38
39 class G1BarrierSetAssembler: public ModRefBarrierSetAssembler {
40 protected:
41 virtual void gen_write_ref_array_pre_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count);
42 virtual void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators, Register addr, Register count, Register tmp);
43
44 void g1_write_barrier_pre(MacroAssembler* masm,
45 Register obj,
46 Register pre_val,
47 Register thread,
48 Register tmp,
49 bool tosca_live,
50 bool expand_call);
51
52 void g1_write_barrier_post(MacroAssembler* masm,
53 Register store_addr,
54 Register new_val,
55 Register thread,
56 Register tmp,
57 Register tmp2);
58
59 virtual void oop_store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
60 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
61
62 public:
63 void gen_pre_barrier_stub(LIR_Assembler* ce, G1PreBarrierStub* stub);
64 void gen_post_barrier_stub(LIR_Assembler* ce, G1PostBarrierStub* stub);
65
66 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
67 void generate_c1_post_barrier_runtime_stub(StubAssembler* sasm);
68
69 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
70 Register dst, Address src, Register tmp1, Register tmp_thread);
71
72 #ifdef COMPILER2
73 void g1_write_barrier_pre_c2(MacroAssembler* masm,
74 Register obj,
75 Register pre_val,
76 Register thread,
77 Register tmp,
78 G1PreBarrierStubC2* c2_stub);
79 void generate_c2_pre_barrier_stub(MacroAssembler* masm,
80 G1PreBarrierStubC2* stub) const;
81 void g1_write_barrier_post_c2(MacroAssembler* masm,
82 Register store_addr,
83 Register new_val,
84 Register thread,
85 Register tmp,
86 Register tmp2,
87 G1PostBarrierStubC2* c2_stub);
88 void generate_c2_post_barrier_stub(MacroAssembler* masm,
89 G1PostBarrierStubC2* stub) const;
90 #endif // COMPILER2
91 };
92
93 #endif // CPU_X86_GC_G1_G1BARRIERSETASSEMBLER_X86_HPP