1 /*
2 * Copyright (c) 2026, Oracle and/or its affiliates. All rights reserved.
3 * Copyright (c) 2018, 2021, Red Hat, Inc. All rights reserved.
4 * Copyright Amazon.com Inc. or its affiliates. All Rights Reserved.
5 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
6 *
7 * This code is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License version 2 only, as
9 * published by the Free Software Foundation.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 *
25 */
26
27 #ifndef CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
28 #define CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
29
30 #include "asm/macroAssembler.hpp"
31 #include "gc/shared/barrierSetAssembler.hpp"
32 #include "gc/shenandoah/shenandoahBarrierSet.hpp"
33
34 #ifdef COMPILER1
35 class LIR_Assembler;
36 class ShenandoahPreBarrierStub;
37 class ShenandoahLoadReferenceBarrierStub;
38 class StubAssembler;
39 #endif
40 #ifdef COMPILER2
41 class MachNode;
42 #endif
43 class StubCodeGenerator;
44
45 class ShenandoahBarrierSetAssembler: public BarrierSetAssembler {
46 private:
47
48 void satb_barrier(MacroAssembler* masm,
49 Register obj,
50 Register pre_val,
51 Register tmp,
52 bool tosca_live,
53 bool expand_call);
54
55 void card_barrier(MacroAssembler* masm, Register obj);
56
57 void gen_write_ref_array_post_barrier(MacroAssembler* masm, DecoratorSet decorators,
58 Register addr, Register count,
59 Register tmp);
60
61 public:
62
63 void load_reference_barrier(MacroAssembler* masm, Register dst, Address src, DecoratorSet decorators);
64
65 void cmpxchg_oop(MacroAssembler* masm,
66 Register res, Address addr, Register oldval, Register newval,
67 bool exchange, Register tmp1, Register tmp2);
68 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
69 Register src, Register dst, Register count);
70 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
71 Register src, Register dst, Register count);
72 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
73 Register dst, Address src, Register tmp1);
74 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
75 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
76 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
77 Register obj, Register tmp, Label& slowpath);
78
79 #ifdef COMPILER1
80 void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
81 void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
82 void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
83 void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm, DecoratorSet decorators);
84 #endif
85
86 #ifdef COMPILER2
87 // Entry points from Matcher
88 void load_c2(const MachNode* node, MacroAssembler* masm, Register dst, Address src, bool narrow);
89 void store_c2(const MachNode* node, MacroAssembler* masm,
90 Address dst, bool dst_narrow, Register src, bool src_narrow, Register tmp);
91 void compare_and_set_c2(const MachNode* node, MacroAssembler* masm, Register res, Address addr, Register oldval, Register newval,
92 Register tmp, bool narrow);
93 void get_and_set_c2(const MachNode* node, MacroAssembler* masm, Register newval, Address addr, Register tmp, bool narrow);
94
95 void gc_state_check_c2(MacroAssembler* masm, const char test_state, BarrierStubC2* slow_stub);
96 void card_barrier_c2(MacroAssembler* masm, Address dst, Register tmp);
97 virtual void try_resolve_weak_handle_in_c2(MacroAssembler* masm, Register obj, Label& slowpath);
98 #endif
99 };
100
101 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP