1 /*
2 * Copyright (c) 2018, 2021, Red Hat, Inc. All rights reserved.
3 * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #ifndef CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
27 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
28
29 #include "asm/macroAssembler.hpp"
30 #include "gc/shared/barrierSetAssembler.hpp"
31 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
32
33 #ifdef COMPILER1
34 class LIR_Assembler;
35 class ShenandoahPreBarrierStub;
36 class ShenandoahLoadReferenceBarrierStub;
37 class StubAssembler;
38 #endif
39 #ifdef COMPILER2
40 class MachNode;
41 #endif
42 class StubCodeGenerator;
43
44 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
45 private:
46
47 void satb_barrier(MacroAssembler* masm,
48 Register obj,
49 Register pre_val,
50 Register tmp,
51 bool tosca_live,
52 bool expand_call);
53
54 void card_barrier(MacroAssembler* masm, Register obj);
55
56 void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
57 Register addr, Register count,
58 Register tmp);
59
60 public:
61
62 void load_reference_barrier(MacroAssembler* masm, Register dst, Address src, DecoratorSet decorators);
63
64 void cmpxchg_oop(MacroAssembler* masm,
65 Register res, Address addr, Register oldval, Register newval,
66 bool exchange, Register tmp1, Register tmp2);
67 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
68 Register src, Register dst, Register count);
69 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
70 Register src, Register dst, Register count);
71 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
72 Register dst, Address src, Register tmp1);
73 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
74 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
75 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
76 Register obj, Register tmp, Label& slowpath);
77
78 #ifdef COMPILER1
79 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
80 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
81 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
82 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm, DecoratorSet decorators);
83 #endif
84
85 #ifdef COMPILER2
86 // Entry points from Matcher
87 void load_c2(const MachNode* node, MacroAssembler* masm, Register dst, Address src);
88 void store_c2(const MachNode* node, MacroAssembler* masm,
89 Address dst, bool dst_narrow, Register src, bool src_narrow, Register tmp);
90 void cae_c2(const MachNode* node, MacroAssembler* masm, Register res, Address addr, Register oldval, Register newval,
91 Register tmp1, Register tmp2, bool exchange, bool maybe_null, bool narrow);
92 void get_and_set_c2(const MachNode* node, MacroAssembler* masm, Register newval, Address addr, Register tmp);
93
94 void gc_state_check_c2(MacroAssembler* masm, const char test_state, BarrierStubC2* slow_stub);
95 void card_barrier_c2(MacroAssembler* masm, Address dst, Register tmp);
96 #endif
97 };
98
99 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP