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 #ifdef COMPILER1
62   void gen_pre_barrier_stub(LIR_Assembler* ce, ShenandoahPreBarrierStub* stub);
63   void gen_load_reference_barrier_stub(LIR_Assembler* ce, ShenandoahLoadReferenceBarrierStub* stub);
64   void generate_c1_pre_barrier_runtime_stub(StubAssembler* sasm);
65   void generate_c1_load_reference_barrier_runtime_stub(StubAssembler* sasm, DecoratorSet decorators);
66 #endif
67 
68   void load_reference_barrier(MacroAssembler* masm, Register dst, Address src, DecoratorSet decorators);
69 
70   void cmpxchg_oop(MacroAssembler* masm,
71                    Register res, Address addr, Register oldval, Register newval,
72                    bool exchange, Register tmp1, Register tmp2);
73 #ifdef COMPILER2
74   void gc_state_check_c2(MacroAssembler* masm, const char test_state, BarrierStubC2* slow_stub);
75 
76   void load_ref_barrier_c2(const MachNode* node, MacroAssembler* masm, Register obj, Register addr, Register tmp1, Register tmp2, Register tmp3, bool narrow);
77   void satb_barrier_c2(const MachNode* node, MacroAssembler* masm,
78                        Register addr, Register preval, Register tmp);
79   void card_barrier_c2(const MachNode* node, MacroAssembler* masm,
80                        Register addr, Register addr_tmp, Register tmp);
81   void cmpxchg_oop_c2(const MachNode* node, MacroAssembler* masm,
82                       Register res, Address addr, Register oldval, Register newval, Register tmp1, Register tmp2,
83                       bool exchange);
84   void load_c2(const MachNode* node, MacroAssembler* masm, Register dst, Address src, bool narrow, Register tmp);
85   void store_c2(const MachNode* node, MacroAssembler* masm, Address dst, bool dst_narrow, Register src, bool src_narrow, Register tmp);
86 #endif
87   virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
88                                   Register src, Register dst, Register count);
89   virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
90                                   Register src, Register dst, Register count);
91   virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
92                        Register dst, Address src, Register tmp1);
93   virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
94                         Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
95   virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
96                                              Register obj, Register tmp, Label& slowpath);
97 };
98 
99 #endif // CPU_X86_GC_SHENANDOAH_SHENANDOAHBARRIERSETASSEMBLER_X86_HPP
--- EOF ---