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comparison: src/cpu/x86/vm/interp_masm_x86_64.hpp

src/cpu/x86/vm/interp_masm_x86_64.hpp

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1 /*
2 * Copyright (c) 2003, 2013, 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 CC_INTERP
26 protected:
27 // Interpreter specific version of call_VM_base
28 virtual void call_VM_leaf_base(address entry_point,
29 int number_of_arguments);
30
31 virtual void call_VM_base(Register oop_result,
32 Register java_thread,
33 Register last_java_sp,
34 address entry_point,
35 int number_of_arguments,
36 bool check_exceptions);
37
38 virtual void check_and_handle_popframe(Register java_thread);
39 virtual void check_and_handle_earlyret(Register java_thread);
40
41 // base routine for all dispatches
42 void dispatch_base(TosState state, address* table, bool verifyoop = true);
43 #endif // CC_INTERP
44
45 public:
46 InterpreterMacroAssembler(CodeBuffer* code) : MacroAssembler(code), _locals_register(r14), _bcp_register(r13) {}
47
48 void load_earlyret_value(TosState state);
49
50 #ifdef CC_INTERP
51 void save_bcp() { /* not needed in c++ interpreter and harmless */ }
52 void restore_bcp() { /* not needed in c++ interpreter and harmless */ }
53
54 // Helpers for runtime call arguments/results
55 void get_method(Register reg);
56
57 #else
58
59 // Interpreter-specific registers
60 void save_bcp() {
61 movptr(Address(rbp, frame::interpreter_frame_bcx_offset * wordSize), r13);
62 }
63
64 void restore_bcp() {
65 movptr(r13, Address(rbp, frame::interpreter_frame_bcx_offset * wordSize));
66 }
67
68 void restore_locals() {
69 movptr(r14, Address(rbp, frame::interpreter_frame_locals_offset * wordSize));
70 }
71
72 // Helpers for runtime call arguments/results
73 void get_method(Register reg) {
74 movptr(reg, Address(rbp, frame::interpreter_frame_method_offset * wordSize));
75 }
76
77 void get_const(Register reg) {
78 get_method(reg);
79 movptr(reg, Address(reg, Method::const_offset()));
80 }
81
82 void get_constant_pool(Register reg) {
83 get_const(reg);
84 movptr(reg, Address(reg, ConstMethod::constants_offset()));
85 }
86
87 void get_constant_pool_cache(Register reg) {
88 get_constant_pool(reg);
89 movptr(reg, Address(reg, ConstantPool::cache_offset_in_bytes()));
90 }
91
92 void get_cpool_and_tags(Register cpool, Register tags) {
93 get_constant_pool(cpool);
94 movptr(tags, Address(cpool, ConstantPool::tags_offset_in_bytes()));
95 }
96
97 void get_unsigned_2_byte_index_at_bcp(Register reg, int bcp_offset);
98 void get_cache_and_index_at_bcp(Register cache, Register index, int bcp_offset, size_t index_size = sizeof(u2));
99 void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register index, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
100 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
101 void get_cache_index_at_bcp(Register index, int bcp_offset, size_t index_size = sizeof(u2));
102 void get_method_counters(Register method, Register mcs, Label& skip);
103
104 // load cpool->resolved_references(index);
105 void load_resolved_reference_at_index(Register result, Register index);
106
107 void pop_ptr(Register r = rax);
108 void pop_i(Register r = rax);
109 void pop_l(Register r = rax);
110 void pop_f(XMMRegister r = xmm0);
111 void pop_d(XMMRegister r = xmm0);
112 void push_ptr(Register r = rax);
113 void push_i(Register r = rax);
114 void push_l(Register r = rax);
115 void push_f(XMMRegister r = xmm0);
116 void push_d(XMMRegister r = xmm0);
117
118 void pop(Register r ) { ((MacroAssembler*)this)->pop(r); }
119
120 void push(Register r ) { ((MacroAssembler*)this)->push(r); }
121 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
122
123 void pop(TosState state); // transition vtos -> state
124 void push(TosState state); // transition state -> vtos
125
126 void empty_expression_stack() {
127 movptr(rsp, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
128 // NULL last_sp until next java call
129 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD);
130 }
131
132 // Helpers for swap and dup
133 void load_ptr(int n, Register val);
134 void store_ptr(int n, Register val);
135
136 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
137 // a subtype of super_klass.
138 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
139
140 // Dispatching
141 void dispatch_prolog(TosState state, int step = 0);
142 void dispatch_epilog(TosState state, int step = 0);
143 // dispatch via ebx (assume ebx is loaded already)
144 void dispatch_only(TosState state);
145 // dispatch normal table via ebx (assume ebx is loaded already)
146 void dispatch_only_normal(TosState state);
147 void dispatch_only_noverify(TosState state);
148 // load ebx from [esi + step] and dispatch via ebx
149 void dispatch_next(TosState state, int step = 0);
150 // load ebx from [esi] and dispatch via ebx and table
151 void dispatch_via (TosState state, address* table);
152
153 // jump to an invoked target
154 void prepare_to_jump_from_interpreted();
155 void jump_from_interpreted(Register method, Register temp);
156
157
158 // Returning from interpreted functions
159 //
160 // Removes the current activation (incl. unlocking of monitors)
161 // and sets up the return address. This code is also used for
162 // exception unwindwing. In that case, we do not want to throw
163 // IllegalMonitorStateExceptions, since that might get us into an
164 // infinite rethrow exception loop.
165 // Additionally this code is used for popFrame and earlyReturn.
166 // In popFrame case we want to skip throwing an exception,
167 // installing an exception, and notifying jvmdi.
168 // In earlyReturn case we only want to skip throwing an exception
169 // and installing an exception.
170 void remove_activation(TosState state, Register ret_addr,
171 bool throw_monitor_exception = true,
172 bool install_monitor_exception = true,
173 bool notify_jvmdi = true);
174 #endif // CC_INTERP
175
176 // Object locking
177 void lock_object (Register lock_reg);
178 void unlock_object(Register lock_reg);
179
180 #ifndef CC_INTERP
181
182 // Interpreter profiling operations
183 void set_method_data_pointer_for_bcp();
184 void test_method_data_pointer(Register mdp, Label& zero_continue);
185 void verify_method_data_pointer();
186
187 void set_mdp_data_at(Register mdp_in, int constant, Register value);
188 void increment_mdp_data_at(Address data, bool decrement = false);
189 void increment_mdp_data_at(Register mdp_in, int constant,
190 bool decrement = false);
191 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
192 bool decrement = false);
193 void increment_mask_and_jump(Address counter_addr,
194 int increment, int mask,
195 Register scratch, bool preloaded,
196 Condition cond, Label* where);
197 void set_mdp_flag_at(Register mdp_in, int flag_constant);
198 void test_mdp_data_at(Register mdp_in, int offset, Register value,
199 Register test_value_out,
200 Label& not_equal_continue);
201
202 void record_klass_in_profile(Register receiver, Register mdp,
203 Register reg2, bool is_virtual_call);
204 void record_klass_in_profile_helper(Register receiver, Register mdp,
205 Register reg2, int start_row,
206 Label& done, bool is_virtual_call);
207
208 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
209 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
210 void update_mdp_by_constant(Register mdp_in, int constant);
211 void update_mdp_for_ret(Register return_bci);
212
213 void profile_taken_branch(Register mdp, Register bumped_count);
214 void profile_not_taken_branch(Register mdp);
215 void profile_call(Register mdp);
216 void profile_final_call(Register mdp);
217 void profile_virtual_call(Register receiver, Register mdp,
218 Register scratch2,
219 bool receiver_can_be_null = false);
220 void profile_ret(Register return_bci, Register mdp);
221 void profile_null_seen(Register mdp);
222 void profile_typecheck(Register mdp, Register klass, Register scratch);
223 void profile_typecheck_failed(Register mdp);
224 void profile_switch_default(Register mdp);
225 void profile_switch_case(Register index_in_scratch, Register mdp,
226 Register scratch2);
227
228 // Debugging
229 // only if +VerifyOops && state == atos
230 void verify_oop(Register reg, TosState state = atos);
231 // only if +VerifyFPU && (state == ftos || state == dtos)
232 void verify_FPU(int stack_depth, TosState state = ftos);
233
234 #endif // !CC_INTERP
235
236 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
237
238 // support for jvmti/dtrace
239 void notify_method_entry();
240 void notify_method_exit(TosState state, NotifyMethodExitMode mode);

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