1 /*
2 * Copyright (c) 2018, 2019, 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_SHARED_BARRIERSETASSEMBLER_X86_HPP
26 #define CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP
27
28 #include "asm/macroAssembler.hpp"
29 #include "memory/allocation.hpp"
30 #include "oops/access.hpp"
31
32 class InterpreterMacroAssembler;
33
34 class BarrierSetAssembler: public CHeapObj<mtGC> {
35 private:
36 void incr_allocated_bytes(MacroAssembler* masm, Register thread,
37 Register var_size_in_bytes,
38 int con_size_in_bytes,
39 Register t1);
40
41 public:
42 virtual void arraycopy_prologue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
43 Register src, Register dst, Register count) {}
44 virtual void arraycopy_epilogue(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
45 Register src, Register dst, Register count) {}
46
47 virtual void load_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
48 Register dst, Address src, Register tmp1, Register tmp_thread);
49 virtual void store_at(MacroAssembler* masm, DecoratorSet decorators, BasicType type,
50 Address dst, Register val, Register tmp1, Register tmp2, Register tmp3);
51
52 virtual void value_copy(MacroAssembler* masm, DecoratorSet decorators,
53 Register src, Register dst, Register value_klass);
54
55 // The copy_[load/store]_at functions are used by arraycopy stubs. Be careful to only use
56 // r10 (aka rscratch1) in a context where restore_arg_regs_using_thread has been used instead
57 // of the looser setup_arg_regs. Currently this is done when using type T_OBJECT.
58 virtual void copy_load_at(MacroAssembler* masm,
59 DecoratorSet decorators,
60 BasicType type,
61 size_t bytes,
62 Register dst,
63 Address src,
64 Register tmp);
65
66 virtual void copy_store_at(MacroAssembler* masm,
67 DecoratorSet decorators,
68 BasicType type,
69 size_t bytes,
70 Address dst,
71 Register src,
72 Register tmp);
73
74 virtual void copy_load_at(MacroAssembler* masm,
75 DecoratorSet decorators,
76 BasicType type,
77 size_t bytes,
78 XMMRegister dst,
79 Address src,
80 Register tmp,
81 XMMRegister xmm_tmp);
82
83 virtual void copy_store_at(MacroAssembler* masm,
84 DecoratorSet decorators,
85 BasicType type,
86 size_t bytes,
87 Address dst,
88 XMMRegister src,
89 Register tmp1,
90 Register tmp2,
91 XMMRegister xmm_tmp);
92
93 virtual bool supports_avx3_masked_arraycopy() { return true; }
94
95 // Support for jniFastGetField to try resolving a jobject/jweak in native
96 virtual void try_resolve_jobject_in_native(MacroAssembler* masm, Register jni_env,
97 Register obj, Register tmp, Label& slowpath);
98
99 virtual void tlab_allocate(MacroAssembler* masm,
100 Register thread, Register obj,
101 Register var_size_in_bytes,
102 int con_size_in_bytes,
103 Register t1, Register t2,
104 Label& slow_case);
105
106 virtual void barrier_stubs_init() {}
107
108 virtual void nmethod_entry_barrier(MacroAssembler* masm, Label* slow_path, Label* continuation);
109 virtual void c2i_entry_barrier(MacroAssembler* masm);
110
111 virtual void check_oop(MacroAssembler* masm, Register obj, Register tmp1, Register tmp2, Label& error);
112 };
113
114 #endif // CPU_X86_GC_SHARED_BARRIERSETASSEMBLER_X86_HPP