1 /*
2 * Copyright (c) 1997, 2024, 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 *
145 void pop(Register r) { ((MacroAssembler*)this)->pop(r); }
146 void push(Register r) { ((MacroAssembler*)this)->push(r); }
147 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
148
149 void pop(TosState state); // transition vtos -> state
150 void push(TosState state); // transition state -> vtos
151
152 void empty_expression_stack() {
153 movptr(rcx, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
154 lea(rsp, Address(rbp, rcx, Address::times_ptr));
155 // null last_sp until next java call
156 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
157 }
158
159 // Helpers for swap and dup
160 void load_ptr(int n, Register val);
161 void store_ptr(int n, Register val);
162
163 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
164 // a subtype of super_klass.
165 void gen_subtype_check( Register sub_klass, Label &ok_is_subtype );
166
167 // Dispatching
168 void dispatch_prolog(TosState state, int step = 0);
169 void dispatch_epilog(TosState state, int step = 0);
170 // dispatch via rbx (assume rbx is loaded already)
171 void dispatch_only(TosState state, bool generate_poll = false);
172 // dispatch normal table via rbx (assume rbx is loaded already)
173 void dispatch_only_normal(TosState state);
174 void dispatch_only_noverify(TosState state);
175 // load rbx from [_bcp_register + step] and dispatch via rbx
176 void dispatch_next(TosState state, int step = 0, bool generate_poll = false);
177 // load rbx from [_bcp_register] and dispatch via rbx and table
178 void dispatch_via (TosState state, address* table);
179
180 // jump to an invoked target
181 void prepare_to_jump_from_interpreted();
182 void jump_from_interpreted(Register method, Register temp);
183
184 // narrow int return value
185 void narrow(Register result);
186
187 // Returning from interpreted functions
188 //
189 // Removes the current activation (incl. unlocking of monitors)
190 // and sets up the return address. This code is also used for
191 // exception unwindwing. In that case, we do not want to throw
192 // IllegalMonitorStateExceptions, since that might get us into an
193 // infinite rethrow exception loop.
194 // Additionally this code is used for popFrame and earlyReturn.
195 // In popFrame case we want to skip throwing an exception,
196 // installing an exception, and notifying jvmdi.
197 // In earlyReturn case we only want to skip throwing an exception
198 // and installing an exception.
199 void remove_activation(TosState state, Register ret_addr,
200 bool throw_monitor_exception = true,
201 bool install_monitor_exception = true,
202 bool notify_jvmdi = true);
203 void get_method_counters(Register method, Register mcs, Label& skip);
204
205 // Object locking
206 void lock_object (Register lock_reg);
207 void unlock_object(Register lock_reg);
208
209 // Interpreter profiling operations
210 void set_method_data_pointer_for_bcp();
211 void test_method_data_pointer(Register mdp, Label& zero_continue);
212 void verify_method_data_pointer();
213
214 void set_mdp_data_at(Register mdp_in, int constant, Register value);
215 void increment_mdp_data_at(Address data, bool decrement = false);
216 void increment_mdp_data_at(Register mdp_in, int constant,
217 bool decrement = false);
218 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
219 bool decrement = false);
220 void increment_mask_and_jump(Address counter_addr, Address mask,
221 Register scratch, Label* where);
222 void set_mdp_flag_at(Register mdp_in, int flag_constant);
223 void test_mdp_data_at(Register mdp_in, int offset, Register value,
224 Register test_value_out,
225 Label& not_equal_continue);
226
227 void record_klass_in_profile(Register receiver, Register mdp,
228 Register reg2, bool is_virtual_call);
229 void record_klass_in_profile_helper(Register receiver, Register mdp,
230 Register reg2, int start_row,
231 Label& done, bool is_virtual_call);
232 void record_item_in_profile_helper(Register item, Register mdp, Register reg2, int start_row,
233 Label& done, int total_rows,
234 OffsetFunction item_offset_fn,
235 OffsetFunction item_count_offset_fn);
236
237 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
238 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
239 void update_mdp_by_constant(Register mdp_in, int constant);
240 void update_mdp_for_ret(Register return_bci);
241
242 void profile_taken_branch(Register mdp, Register bumped_count);
243 void profile_not_taken_branch(Register mdp);
244 void profile_call(Register mdp);
245 void profile_final_call(Register mdp);
246 void profile_virtual_call(Register receiver, Register mdp,
247 Register scratch2,
248 bool receiver_can_be_null = false);
249 void profile_ret(Register return_bci, Register mdp);
250 void profile_null_seen(Register mdp);
251 void profile_typecheck(Register mdp, Register klass, Register scratch);
252
253 void profile_switch_default(Register mdp);
254 void profile_switch_case(Register index_in_scratch, Register mdp,
255 Register scratch2);
256
257 // Debugging
258 // only if +VerifyOops && state == atos
259 #define interp_verify_oop(reg, state) _interp_verify_oop(reg, state, __FILE__, __LINE__);
260 void _interp_verify_oop(Register reg, TosState state, const char* file, int line);
261
262 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
263
264 // support for jvmti/dtrace
265 void notify_method_entry();
266 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
267
268 private:
269
270 Register _locals_register; // register that contains the pointer to the locals
271 Register _bcp_register; // register that contains the bcp
272
273 public:
274 void profile_obj_type(Register obj, const Address& mdo_addr);
275 void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
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1 /*
2 * Copyright (c) 1997, 2025, 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 *
145 void pop(Register r) { ((MacroAssembler*)this)->pop(r); }
146 void push(Register r) { ((MacroAssembler*)this)->push(r); }
147 void push(int32_t imm ) { ((MacroAssembler*)this)->push(imm); }
148
149 void pop(TosState state); // transition vtos -> state
150 void push(TosState state); // transition state -> vtos
151
152 void empty_expression_stack() {
153 movptr(rcx, Address(rbp, frame::interpreter_frame_monitor_block_top_offset * wordSize));
154 lea(rsp, Address(rbp, rcx, Address::times_ptr));
155 // null last_sp until next java call
156 movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), NULL_WORD);
157 }
158
159 // Helpers for swap and dup
160 void load_ptr(int n, Register val);
161 void store_ptr(int n, Register val);
162
163 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
164 // a subtype of super_klass.
165 void gen_subtype_check(Register sub_klass, Label &ok_is_subtype, bool profile = true);
166
167 // Dispatching
168 void dispatch_prolog(TosState state, int step = 0);
169 void dispatch_epilog(TosState state, int step = 0);
170 // dispatch via rbx (assume rbx is loaded already)
171 void dispatch_only(TosState state, bool generate_poll = false);
172 // dispatch normal table via rbx (assume rbx is loaded already)
173 void dispatch_only_normal(TosState state);
174 void dispatch_only_noverify(TosState state);
175 // load rbx from [_bcp_register + step] and dispatch via rbx
176 void dispatch_next(TosState state, int step = 0, bool generate_poll = false);
177 // load rbx from [_bcp_register] and dispatch via rbx and table
178 void dispatch_via (TosState state, address* table);
179
180 // jump to an invoked target
181 void prepare_to_jump_from_interpreted();
182 void jump_from_interpreted(Register method, Register temp);
183
184 // narrow int return value
185 void narrow(Register result);
186
187 // Returning from interpreted functions
188 //
189 // Removes the current activation (incl. unlocking of monitors)
190 // and sets up the return address. This code is also used for
191 // exception unwindwing. In that case, we do not want to throw
192 // IllegalMonitorStateExceptions, since that might get us into an
193 // infinite rethrow exception loop.
194 // Additionally this code is used for popFrame and earlyReturn.
195 // In popFrame case we want to skip throwing an exception,
196 // installing an exception, and notifying jvmdi.
197 // In earlyReturn case we only want to skip throwing an exception
198 // and installing an exception.
199 void remove_activation(TosState state, Register ret_addr,
200 bool throw_monitor_exception = true,
201 bool install_monitor_exception = true,
202 bool notify_jvmdi = true);
203 void get_method_counters(Register method, Register mcs, Label& skip);
204
205 // Kills t1 and t2, preserves klass, return allocation in new_obj
206 void allocate_instance(Register klass, Register new_obj,
207 Register t1, Register t2,
208 bool clear_fields, Label& alloc_failed);
209
210 // Allocate instance in "obj" and read in the content of the inline field
211 // NOTES:
212 // - input holder object via "obj", which must be rax,
213 // will return new instance via the same reg
214 // - assumes holder_klass and valueKlass field klass have both been resolved
215 void read_flat_field(Register entry,
216 Register tmp1, Register tmp2,
217 Register obj = rax);
218
219 // Object locking
220 void lock_object (Register lock_reg);
221 void unlock_object(Register lock_reg);
222
223 // Interpreter profiling operations
224 void set_method_data_pointer_for_bcp();
225 void test_method_data_pointer(Register mdp, Label& zero_continue);
226 void verify_method_data_pointer();
227
228 void set_mdp_data_at(Register mdp_in, int constant, Register value);
229 void increment_mdp_data_at(Address data, bool decrement = false);
230 void increment_mdp_data_at(Register mdp_in, int constant,
231 bool decrement = false);
232 void increment_mdp_data_at(Register mdp_in, Register reg, int constant,
233 bool decrement = false);
234 void increment_mask_and_jump(Address counter_addr, Address mask,
235 Register scratch, Label* where);
236 void set_mdp_flag_at(Register mdp_in, int flag_constant);
237 void test_mdp_data_at(Register mdp_in, int offset, Register value,
238 Register test_value_out,
239 Label& not_equal_continue);
240
241 void record_klass_in_profile(Register receiver, Register mdp, Register reg2);
242 void record_klass_in_profile_helper(Register receiver, Register mdp, Register reg2, int start_row, Label &done);
243 void record_item_in_profile_helper(Register item, Register mdp, Register reg2, int start_row,
244 Label& done, int total_rows,
245 OffsetFunction item_offset_fn,
246 OffsetFunction item_count_offset_fn);
247
248 void update_mdp_by_offset(Register mdp_in, int offset_of_offset);
249 void update_mdp_by_offset(Register mdp_in, Register reg, int offset_of_disp);
250 void update_mdp_by_constant(Register mdp_in, int constant);
251 void update_mdp_for_ret(Register return_bci);
252
253 void profile_taken_branch(Register mdp, Register bumped_count);
254 void profile_not_taken_branch(Register mdp, bool acmp = false);
255 void profile_call(Register mdp);
256 void profile_final_call(Register mdp);
257 void profile_virtual_call(Register receiver, Register mdp,
258 Register scratch2,
259 bool receiver_can_be_null = false);
260 void profile_ret(Register return_bci, Register mdp);
261 void profile_null_seen(Register mdp);
262 void profile_typecheck(Register mdp, Register klass, Register scratch);
263
264 void profile_switch_default(Register mdp);
265 void profile_switch_case(Register index_in_scratch, Register mdp,
266 Register scratch2);
267 template <class ArrayData> void profile_array_type(Register mdp, Register array, Register tmp);
268
269 void profile_multiple_element_types(Register mdp, Register element, Register tmp, const Register tmp2);
270 void profile_element_type(Register mdp, Register element, Register tmp);
271 void profile_acmp(Register mdp, Register left, Register right, Register tmp);
272
273 // Debugging
274 // only if +VerifyOops && state == atos
275 #define interp_verify_oop(reg, state) _interp_verify_oop(reg, state, __FILE__, __LINE__);
276 void _interp_verify_oop(Register reg, TosState state, const char* file, int line);
277
278 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
279
280 // support for jvmti/dtrace
281 void notify_method_entry();
282 void notify_method_exit(TosState state, NotifyMethodExitMode mode);
283
284 private:
285
286 Register _locals_register; // register that contains the pointer to the locals
287 Register _bcp_register; // register that contains the bcp
288
289 public:
290 void profile_obj_type(Register obj, const Address& mdo_addr);
291 void profile_arguments_type(Register mdp, Register callee, Register tmp, bool is_virtual);
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