1 /*
2 * Copyright (c) 1997, 2015, 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_SPARC_VM_INTERP_MASM_SPARC_HPP
26 #define CPU_SPARC_VM_INTERP_MASM_SPARC_HPP
27
28 #include "asm/macroAssembler.inline.hpp"
29 #include "interpreter/invocationCounter.hpp"
30
31 // This file specializes the assember with interpreter-specific macros
32
33 typedef ByteSize (*OffsetFunction)(uint);
34
35 REGISTER_DECLARATION( Register, Otos_i , O0); // tos for ints, etc
36 REGISTER_DECLARATION( Register, Otos_l , O0); // for longs
37 REGISTER_DECLARATION( Register, Otos_l1, O0); // for 1st part of longs
38 REGISTER_DECLARATION( Register, Otos_l2, O1); // for 2nd part of longs
39 REGISTER_DECLARATION(FloatRegister, Ftos_f , F0); // for floats
40 REGISTER_DECLARATION(FloatRegister, Ftos_d , F0); // for doubles
41 REGISTER_DECLARATION(FloatRegister, Ftos_d1, F0); // for 1st part of double
42 REGISTER_DECLARATION(FloatRegister, Ftos_d2, F1); // for 2nd part of double
43
44 #ifndef DONT_USE_REGISTER_DEFINES
45 #define Otos_i O0
46 #define Otos_l O0
47 #define Otos_l1 O0
48 #define Otos_l2 O1
49 #define Ftos_f F0
50 #define Ftos_d F0
51 #define Ftos_d1 F0
52 #define Ftos_d2 F1
53 #endif // DONT_USE_REGISTER_DEFINES
54
55 class InterpreterMacroAssembler: public MacroAssembler {
56 protected:
57 #ifndef CC_INTERP
58 // Interpreter specific version of call_VM_base
59 virtual void call_VM_leaf_base(
60 Register java_thread,
61 address entry_point,
62 int number_of_arguments
63 );
64
65 virtual void call_VM_base(
66 Register oop_result,
67 Register java_thread,
68 Register last_java_sp,
69 address entry_point,
70 int number_of_arguments,
71 bool check_exception=true
72 );
73
74 virtual void check_and_handle_popframe(Register java_thread);
75 virtual void check_and_handle_earlyret(Register java_thread);
76
77 // base routine for all dispatches
78 void dispatch_base(TosState state, address* table);
79 #endif /* CC_INTERP */
80
81 public:
82 InterpreterMacroAssembler(CodeBuffer* c)
83 : MacroAssembler(c) {}
84
85 void jump_to_entry(address entry);
86
87 #ifndef CC_INTERP
88 virtual void load_earlyret_value(TosState state);
89
90 static const Address l_tmp ;
91 static const Address d_tmp ;
92 #endif /* CC_INTERP */
93
94 // helper routine for frame allocation/deallocation
95 // compute the delta by which the caller's SP has to
96 // be adjusted to accomodate for the non-argument
97 // locals
98 void compute_extra_locals_size_in_bytes(Register args_size, Register locals_size, Register delta);
99
100 #ifndef CC_INTERP
101
102 // dispatch routines
103 void dispatch_prolog(TosState state, int step = 0);
104 void dispatch_epilog(TosState state, int step = 0);
105 void dispatch_only(TosState state);
106 void dispatch_normal(TosState state);
107 void dispatch_next(TosState state, int step = 0);
108 void dispatch_next_noverify_oop(TosState state, int step = 0);
109 void dispatch_via (TosState state, address* table);
110
111
112 // Removes the current activation (incl. unlocking of monitors).
113 // Additionally this code is used for earlyReturn in which case we
114 // want to skip throwing an exception and installing an exception.
115 void remove_activation(TosState state,
116 bool throw_monitor_exception = true,
117 bool install_monitor_exception = true);
118
119 protected:
120 void dispatch_Lbyte_code(TosState state, address* table, int bcp_incr = 0, bool verify = true);
121 #endif /* CC_INTERP */
122
123 public:
124 // Super call_VM calls - correspond to MacroAssembler::call_VM(_leaf) calls
125 void super_call_VM(Register thread_cache,
126 Register oop_result,
127 Register last_java_sp,
128 address entry_point,
129 Register arg_1,
130 Register arg_2,
131 bool check_exception = true);
132
133 #ifndef CC_INTERP
134 void super_call_VM_leaf(Register thread_cache, address entry_point, Register arg_1, Register arg_2);
135
136 // Generate a subtype check: branch to ok_is_subtype if sub_klass is
137 // a subtype of super_klass. Blows registers tmp1, tmp2 and tmp3.
138 void gen_subtype_check( Register sub_klass, Register super_klass, Register tmp1, Register tmp2, Register tmp3, Label &ok_is_subtype );
139
140 // helpers for tossing exceptions
141 void throw_if_not_1_icc( Condition ok_condition, Label& ok );
142 void throw_if_not_1_xcc( Condition ok_condition, Label& ok );
143 void throw_if_not_1_x ( Condition ok_condition, Label& ok ); // chooses icc or xcc based on _LP64
144
145 void throw_if_not_2( address throw_entry_point, Register Rscratch, Label& ok);
146
147 void throw_if_not_icc( Condition ok_condition, address throw_entry_point, Register Rscratch );
148 void throw_if_not_xcc( Condition ok_condition, address throw_entry_point, Register Rscratch );
149 void throw_if_not_x ( Condition ok_condition, address throw_entry_point, Register Rscratch );
150
151 // helpers for expression stack
152
153 void pop_i( Register r = Otos_i);
154 void pop_ptr( Register r = Otos_i, Register scratch = O4);
155 void pop_l( Register r = Otos_l1);
156 // G4_scratch and Lscratch are used at call sites!!
157 void pop_f(FloatRegister f = Ftos_f, Register scratch = G1_scratch);
158 void pop_d(FloatRegister f = Ftos_d1, Register scratch = G1_scratch);
159
160 void push_i( Register r = Otos_i);
161 void push_ptr( Register r = Otos_i);
162 void push_l( Register r = Otos_l1);
163 void push_f(FloatRegister f = Ftos_f);
164 void push_d(FloatRegister f = Ftos_d1);
165
166
167 void pop (TosState state); // transition vtos -> state
168 void push(TosState state); // transition state -> vtos
169 void empty_expression_stack(); // resets both Lesp and SP
170
171 #ifdef ASSERT
172 void verify_sp(Register Rsp, Register Rtemp);
173 void verify_esp(Register Resp); // verify that Lesp points to a word in the temp stack
174 #endif // ASSERT
175
176 public:
177 void if_cmp(Condition cc, bool ptr_compare);
178
179 // Load values from bytecode stream:
180
181 enum signedOrNot { Signed, Unsigned };
182 enum setCCOrNot { set_CC, dont_set_CC };
183
184 void get_2_byte_integer_at_bcp( int bcp_offset,
185 Register Rtmp,
186 Register Rdst,
187 signedOrNot is_signed,
188 setCCOrNot should_set_CC = dont_set_CC );
189
190 void get_4_byte_integer_at_bcp( int bcp_offset,
191 Register Rtmp,
192 Register Rdst,
193 setCCOrNot should_set_CC = dont_set_CC );
194
195 // Note: "get_cache_and_index" really means "get the index, use it to get the cache entry, and throw away the index".
196 void get_cache_and_index_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
197 void get_cache_and_index_and_bytecode_at_bcp(Register cache, Register temp, Register bytecode, int byte_no, int bcp_offset, size_t index_size = sizeof(u2));
198 void get_cache_entry_pointer_at_bcp(Register cache, Register tmp, int bcp_offset, size_t index_size = sizeof(u2));
199 // Note: This one does not fetch the cache. The first argument is a temp which may be killed.
200 void get_cache_index_at_bcp(Register temp, Register index, int bcp_offset, size_t index_size = sizeof(u2));
201
202 // load cpool->resolved_references(index);
203 void load_resolved_reference_at_index(Register result, Register index);
204
205 // common code
206
207 void field_offset_at(int n, Register tmp, Register dest, Register base);
208 int field_offset_at(Register object, address bcp, int offset);
209 void fast_iaaccess(int n, address bcp);
210 void fast_iaputfield(address bcp, bool do_store_check );
211
212 void index_check(Register array, Register index, int index_shift, Register tmp, Register res);
213 void index_check_without_pop(Register array, Register index, int index_shift, Register tmp, Register res);
214
215 void get_const(Register Rdst);
216 void get_constant_pool(Register Rdst);
217 void get_constant_pool_cache(Register Rdst);
218 void get_cpool_and_tags(Register Rcpool, Register Rtags);
219 void is_a(Label& L);
220
221 // Load compiled (i2c) or interpreter entry and call from interpreted
222 void call_from_interpreter(Register target, Register scratch, Register Rret);
223
224 // --------------------------------------------------
225
226 void unlock_if_synchronized_method(TosState state, bool throw_monitor_exception = true, bool install_monitor_exception = true);
227
228 void add_monitor_to_stack( bool stack_is_empty,
229 Register Rtemp,
230 Register Rtemp2 );
231
232 // Load/store aligned in _LP64 but unaligned otherwise
233 // These only apply to the Interpreter expression stack and locals!
234 void load_unaligned_double(Register r1, int offset, FloatRegister d);
235 void store_unaligned_double(FloatRegister d, Register r1, int offset );
236
237 // Load/store aligned in _LP64 but unaligned otherwise
238 void load_unaligned_long(Register r1, int offset, Register d);
239 void store_unaligned_long(Register d, Register r1, int offset );
240
241 void access_local_int( Register index, Register dst );
242 void access_local_ptr( Register index, Register dst );
243 void access_local_returnAddress( Register index, Register dst );
244 void access_local_long( Register index, Register dst );
245 void access_local_float( Register index, FloatRegister dst );
246 void access_local_double( Register index, FloatRegister dst );
247 #ifdef ASSERT
248 void check_for_regarea_stomp( Register Rindex, int offset, Register Rlimit, Register Rscratch, Register Rscratch1);
249 #endif // ASSERT
250 void store_local_int( Register index, Register src );
251 void store_local_ptr( Register index, Register src );
252 void store_local_ptr( int n, Register src );
253 void store_local_long( Register index, Register src );
254 void store_local_float( Register index, FloatRegister src );
255 void store_local_double( Register index, FloatRegister src );
256
257 // Helpers for swap and dup
258 void load_ptr(int n, Register val);
259 void store_ptr(int n, Register val);
260
261 // Helper for getting receiver in register.
262 void load_receiver(Register param_count, Register recv);
263
264 static int top_most_monitor_byte_offset(); // offset in bytes to top of monitor block
265 Address top_most_monitor();
266 void compute_stack_base( Register Rdest );
267
268 #endif /* CC_INTERP */
269 void get_method_counters(Register method, Register Rcounters, Label& skip);
270 void increment_invocation_counter( Register Rcounters, Register Rtmp, Register Rtmp2 );
271 void increment_backedge_counter( Register Rcounters, Register Rtmp, Register Rtmp2 );
272 #ifndef CC_INTERP
273 void test_backedge_count_for_osr(Register backedge_count, Register method_counters, Register branch_bcp, Register Rtmp );
274
275 #endif /* CC_INTERP */
276 // Object locking
277 void lock_object (Register lock_reg, Register obj_reg);
278 void unlock_object(Register lock_reg);
279
280 #ifndef CC_INTERP
281 // Interpreter profiling operations
282 void set_method_data_pointer();
283 void set_method_data_pointer_for_bcp();
284 void test_method_data_pointer(Label& zero_continue);
285 void verify_method_data_pointer();
286 void test_invocation_counter_for_mdp(Register invocation_count, Register method_counters, Register Rtmp, Label &profile_continue);
287
288 void set_mdp_data_at(int constant, Register value);
289 void increment_mdp_data_at(Address counter, Register bumped_count,
290 bool decrement = false);
291 void increment_mdp_data_at(int constant, Register bumped_count,
292 bool decrement = false);
293 void increment_mdp_data_at(Register reg, int constant,
294 Register bumped_count, Register scratch2,
295 bool decrement = false);
296 void increment_mask_and_jump(Address counter_addr,
297 int increment, Address mask_addr,
298 Register scratch1, Register scratch2,
299 Condition cond, Label *where);
300 void set_mdp_flag_at(int flag_constant, Register scratch);
301 void test_mdp_data_at(int offset, Register value, Label& not_equal_continue,
302 Register scratch);
303
304 void record_klass_in_profile(Register receiver, Register scratch, bool is_virtual_call);
305 void record_klass_in_profile_helper(Register receiver, Register scratch,
306 Label& done, bool is_virtual_call);
307 void record_item_in_profile_helper(Register item,
308 Register scratch, int start_row, Label& done, int total_rows,
309 OffsetFunction item_offset_fn, OffsetFunction item_count_offset_fn,
310 int non_profiled_offset);
311
312 void update_mdp_by_offset(int offset_of_disp, Register scratch);
313 void update_mdp_by_offset(Register reg, int offset_of_disp,
314 Register scratch);
315 void update_mdp_by_constant(int constant);
316 void update_mdp_for_ret(TosState state, Register return_bci);
317
318 void profile_taken_branch(Register scratch, Register bumped_count);
319 void profile_not_taken_branch(Register scratch);
320 void profile_call(Register scratch);
321 void profile_final_call(Register scratch);
322 void profile_virtual_call(Register receiver, Register scratch, bool receiver_can_be_null = false);
323 void profile_called_method(Register method, Register scratch) NOT_JVMCI_RETURN;
324 void profile_ret(TosState state, Register return_bci, Register scratch);
325 void profile_null_seen(Register scratch);
326 void profile_typecheck(Register klass, Register scratch);
327 void profile_typecheck_failed(Register scratch);
328 void profile_switch_default(Register scratch);
329 void profile_switch_case(Register index,
330 Register scratch1,
331 Register scratch2,
332 Register scratch3);
333
334 void profile_obj_type(Register obj, const Address& mdo_addr, Register tmp);
335 void profile_arguments_type(Register callee, Register tmp1, Register tmp2, bool is_virtual);
336 void profile_return_type(Register ret, Register tmp1, Register tmp2);
337 void profile_parameters_type(Register tmp1, Register tmp2, Register tmp3, Register tmp4);
338
339 // Debugging
340 void interp_verify_oop(Register reg, TosState state, const char * file, int line); // only if +VerifyOops && state == atos
341 void verify_oop_or_return_address(Register reg, Register rtmp); // for astore
342 void verify_FPU(int stack_depth, TosState state = ftos); // only if +VerifyFPU && (state == ftos || state == dtos)
343
344 #endif /* CC_INTERP */
345 // support for JVMTI/Dtrace
346 typedef enum { NotifyJVMTI, SkipNotifyJVMTI } NotifyMethodExitMode;
347 void notify_method_entry();
348 void notify_method_exit(
349 bool save_result, TosState state, NotifyMethodExitMode mode);
350
351 void save_return_value(TosState state, bool is_native_call);
352 void restore_return_value(TosState state, bool is_native_call);
353
354 };
355
356 #endif // CPU_SPARC_VM_INTERP_MASM_SPARC_HPP