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