Mercurial > hg > truffle
comparison src/share/vm/shark/sharkCacheDecache.hpp @ 1692:d2ede61b7a12
6976186: integrate Shark HotSpot changes
Summary: Shark is a JIT compiler for Zero that uses the LLVM compiler infrastructure.
Reviewed-by: kvn, twisti
Contributed-by: Gary Benson <gbenson@redhat.com>
author | twisti |
---|---|
date | Wed, 11 Aug 2010 05:51:21 -0700 |
parents | |
children | f95d63e2154a |
comparison
equal
deleted
inserted
replaced
1691:4a665be40fd3 | 1692:d2ede61b7a12 |
---|---|
1 /* | |
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2008, 2009 Red Hat, Inc. | |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
21 * or visit www.oracle.com if you need additional information or have any | |
22 * questions. | |
23 * | |
24 */ | |
25 | |
26 // Class hierarchy: | |
27 // - SharkStateScanner | |
28 // - SharkCacherDecacher | |
29 // - SharkDecacher | |
30 // - SharkJavaCallDecacher | |
31 // - SharkVMCallDecacher | |
32 // - SharkTrapDecacher | |
33 // - SharkCacher | |
34 // - SharkJavaCallCacher | |
35 // - SharkVMCallCacher | |
36 // - SharkFunctionEntryCacher | |
37 // - SharkNormalEntryCacher | |
38 // - SharkOSREntryCacher | |
39 | |
40 class SharkCacherDecacher : public SharkStateScanner { | |
41 protected: | |
42 SharkCacherDecacher(SharkFunction* function) | |
43 : SharkStateScanner(function) {} | |
44 | |
45 // Helper | |
46 protected: | |
47 static int adjusted_offset(SharkValue* value, int offset) { | |
48 if (value->is_two_word()) | |
49 offset--; | |
50 return offset; | |
51 } | |
52 }; | |
53 | |
54 class SharkDecacher : public SharkCacherDecacher { | |
55 protected: | |
56 SharkDecacher(SharkFunction* function, int bci) | |
57 : SharkCacherDecacher(function), _bci(bci) {} | |
58 | |
59 private: | |
60 int _bci; | |
61 | |
62 protected: | |
63 int bci() const { | |
64 return _bci; | |
65 } | |
66 | |
67 private: | |
68 int _pc_offset; | |
69 OopMap* _oopmap; | |
70 GrowableArray<ScopeValue*>* _exparray; | |
71 GrowableArray<MonitorValue*>* _monarray; | |
72 GrowableArray<ScopeValue*>* _locarray; | |
73 | |
74 private: | |
75 int pc_offset() const { | |
76 return _pc_offset; | |
77 } | |
78 OopMap* oopmap() const { | |
79 return _oopmap; | |
80 } | |
81 GrowableArray<ScopeValue*>* exparray() const { | |
82 return _exparray; | |
83 } | |
84 GrowableArray<MonitorValue*>* monarray() const { | |
85 return _monarray; | |
86 } | |
87 GrowableArray<ScopeValue*>* locarray() const { | |
88 return _locarray; | |
89 } | |
90 | |
91 // Callbacks | |
92 protected: | |
93 void start_frame(); | |
94 | |
95 void start_stack(int stack_depth); | |
96 void process_stack_slot(int index, SharkValue** value, int offset); | |
97 | |
98 void start_monitors(int num_monitors); | |
99 void process_monitor(int index, int box_offset, int obj_offset); | |
100 | |
101 void process_oop_tmp_slot(llvm::Value** value, int offset); | |
102 void process_method_slot(llvm::Value** value, int offset); | |
103 void process_pc_slot(int offset); | |
104 | |
105 void start_locals(); | |
106 void process_local_slot(int index, SharkValue** value, int offset); | |
107 | |
108 void end_frame(); | |
109 | |
110 // oopmap and debuginfo helpers | |
111 private: | |
112 static int oopmap_slot_munge(int offset) { | |
113 return SharkStack::oopmap_slot_munge(offset); | |
114 } | |
115 static VMReg slot2reg(int offset) { | |
116 return SharkStack::slot2reg(offset); | |
117 } | |
118 static Location slot2loc(int offset, Location::Type type) { | |
119 return Location::new_stk_loc(type, offset * wordSize); | |
120 } | |
121 static LocationValue* slot2lv(int offset, Location::Type type) { | |
122 return new LocationValue(slot2loc(offset, type)); | |
123 } | |
124 static Location::Type location_type(SharkValue** addr, bool maybe_two_word) { | |
125 // low addresses this end | |
126 // Type 32-bit 64-bit | |
127 // ---------------------------------------------------- | |
128 // stack[0] local[3] jobject oop oop | |
129 // stack[1] local[2] NULL normal lng | |
130 // stack[2] local[1] jlong normal invalid | |
131 // stack[3] local[0] jint normal normal | |
132 // | |
133 // high addresses this end | |
134 | |
135 SharkValue *value = *addr; | |
136 if (value) { | |
137 if (value->is_jobject()) | |
138 return Location::oop; | |
139 #ifdef _LP64 | |
140 if (value->is_two_word()) | |
141 return Location::invalid; | |
142 #endif // _LP64 | |
143 return Location::normal; | |
144 } | |
145 else { | |
146 if (maybe_two_word) { | |
147 value = *(addr - 1); | |
148 if (value && value->is_two_word()) { | |
149 #ifdef _LP64 | |
150 if (value->is_jlong()) | |
151 return Location::lng; | |
152 if (value->is_jdouble()) | |
153 return Location::dbl; | |
154 ShouldNotReachHere(); | |
155 #else | |
156 return Location::normal; | |
157 #endif // _LP64 | |
158 } | |
159 } | |
160 return Location::invalid; | |
161 } | |
162 } | |
163 | |
164 // Stack slot helpers | |
165 protected: | |
166 virtual bool stack_slot_needs_write(int index, SharkValue* value) = 0; | |
167 virtual bool stack_slot_needs_oopmap(int index, SharkValue* value) = 0; | |
168 virtual bool stack_slot_needs_debuginfo(int index, SharkValue* value) = 0; | |
169 | |
170 static Location::Type stack_location_type(int index, SharkValue** addr) { | |
171 return location_type(addr, *addr == NULL); | |
172 } | |
173 | |
174 // Local slot helpers | |
175 protected: | |
176 virtual bool local_slot_needs_write(int index, SharkValue* value) = 0; | |
177 virtual bool local_slot_needs_oopmap(int index, SharkValue* value) = 0; | |
178 virtual bool local_slot_needs_debuginfo(int index, SharkValue* value) = 0; | |
179 | |
180 static Location::Type local_location_type(int index, SharkValue** addr) { | |
181 return location_type(addr, index > 0); | |
182 } | |
183 | |
184 // Writer helper | |
185 protected: | |
186 void write_value_to_frame(const llvm::Type* type, | |
187 llvm::Value* value, | |
188 int offset); | |
189 }; | |
190 | |
191 class SharkJavaCallDecacher : public SharkDecacher { | |
192 public: | |
193 SharkJavaCallDecacher(SharkFunction* function, int bci, ciMethod* callee) | |
194 : SharkDecacher(function, bci), _callee(callee) {} | |
195 | |
196 private: | |
197 ciMethod* _callee; | |
198 | |
199 protected: | |
200 ciMethod* callee() const { | |
201 return _callee; | |
202 } | |
203 | |
204 // Stack slot helpers | |
205 protected: | |
206 bool stack_slot_needs_write(int index, SharkValue* value) { | |
207 return value && (index < callee()->arg_size() || value->is_jobject()); | |
208 } | |
209 bool stack_slot_needs_oopmap(int index, SharkValue* value) { | |
210 return value && value->is_jobject() && index >= callee()->arg_size(); | |
211 } | |
212 bool stack_slot_needs_debuginfo(int index, SharkValue* value) { | |
213 return index >= callee()->arg_size(); | |
214 } | |
215 | |
216 // Local slot helpers | |
217 protected: | |
218 bool local_slot_needs_write(int index, SharkValue* value) { | |
219 return value && value->is_jobject(); | |
220 } | |
221 bool local_slot_needs_oopmap(int index, SharkValue* value) { | |
222 return value && value->is_jobject(); | |
223 } | |
224 bool local_slot_needs_debuginfo(int index, SharkValue* value) { | |
225 return true; | |
226 } | |
227 }; | |
228 | |
229 class SharkVMCallDecacher : public SharkDecacher { | |
230 public: | |
231 SharkVMCallDecacher(SharkFunction* function, int bci) | |
232 : SharkDecacher(function, bci) {} | |
233 | |
234 // Stack slot helpers | |
235 protected: | |
236 bool stack_slot_needs_write(int index, SharkValue* value) { | |
237 return value && value->is_jobject(); | |
238 } | |
239 bool stack_slot_needs_oopmap(int index, SharkValue* value) { | |
240 return value && value->is_jobject(); | |
241 } | |
242 bool stack_slot_needs_debuginfo(int index, SharkValue* value) { | |
243 return true; | |
244 } | |
245 | |
246 // Local slot helpers | |
247 protected: | |
248 bool local_slot_needs_write(int index, SharkValue* value) { | |
249 return value && value->is_jobject(); | |
250 } | |
251 bool local_slot_needs_oopmap(int index, SharkValue* value) { | |
252 return value && value->is_jobject(); | |
253 } | |
254 bool local_slot_needs_debuginfo(int index, SharkValue* value) { | |
255 return true; | |
256 } | |
257 }; | |
258 | |
259 class SharkTrapDecacher : public SharkDecacher { | |
260 public: | |
261 SharkTrapDecacher(SharkFunction* function, int bci) | |
262 : SharkDecacher(function, bci) {} | |
263 | |
264 // Stack slot helpers | |
265 protected: | |
266 bool stack_slot_needs_write(int index, SharkValue* value) { | |
267 return value != NULL; | |
268 } | |
269 bool stack_slot_needs_oopmap(int index, SharkValue* value) { | |
270 return value && value->is_jobject(); | |
271 } | |
272 bool stack_slot_needs_debuginfo(int index, SharkValue* value) { | |
273 return true; | |
274 } | |
275 | |
276 // Local slot helpers | |
277 protected: | |
278 bool local_slot_needs_write(int index, SharkValue* value) { | |
279 return value != NULL; | |
280 } | |
281 bool local_slot_needs_oopmap(int index, SharkValue* value) { | |
282 return value && value->is_jobject(); | |
283 } | |
284 bool local_slot_needs_debuginfo(int index, SharkValue* value) { | |
285 return true; | |
286 } | |
287 }; | |
288 | |
289 class SharkCacher : public SharkCacherDecacher { | |
290 protected: | |
291 SharkCacher(SharkFunction* function) | |
292 : SharkCacherDecacher(function) {} | |
293 | |
294 // Callbacks | |
295 protected: | |
296 void process_stack_slot(int index, SharkValue** value, int offset); | |
297 | |
298 void process_oop_tmp_slot(llvm::Value** value, int offset); | |
299 virtual void process_method_slot(llvm::Value** value, int offset); | |
300 | |
301 virtual void process_local_slot(int index, SharkValue** value, int offset); | |
302 | |
303 // Stack slot helper | |
304 protected: | |
305 virtual bool stack_slot_needs_read(int index, SharkValue* value) = 0; | |
306 | |
307 // Local slot helper | |
308 protected: | |
309 virtual bool local_slot_needs_read(int index, SharkValue* value) { | |
310 return value && value->is_jobject(); | |
311 } | |
312 | |
313 // Writer helper | |
314 protected: | |
315 llvm::Value* read_value_from_frame(const llvm::Type* type, int offset); | |
316 }; | |
317 | |
318 class SharkJavaCallCacher : public SharkCacher { | |
319 public: | |
320 SharkJavaCallCacher(SharkFunction* function, ciMethod* callee) | |
321 : SharkCacher(function), _callee(callee) {} | |
322 | |
323 private: | |
324 ciMethod* _callee; | |
325 | |
326 protected: | |
327 ciMethod* callee() const { | |
328 return _callee; | |
329 } | |
330 | |
331 // Stack slot helper | |
332 protected: | |
333 bool stack_slot_needs_read(int index, SharkValue* value) { | |
334 return value && (index < callee()->return_type()->size() || | |
335 value->is_jobject()); | |
336 } | |
337 }; | |
338 | |
339 class SharkVMCallCacher : public SharkCacher { | |
340 public: | |
341 SharkVMCallCacher(SharkFunction* function) | |
342 : SharkCacher(function) {} | |
343 | |
344 // Stack slot helper | |
345 protected: | |
346 bool stack_slot_needs_read(int index, SharkValue* value) { | |
347 return value && value->is_jobject(); | |
348 } | |
349 }; | |
350 | |
351 class SharkFunctionEntryCacher : public SharkCacher { | |
352 public: | |
353 SharkFunctionEntryCacher(SharkFunction* function, llvm::Value* method) | |
354 : SharkCacher(function), _method(method) {} | |
355 | |
356 private: | |
357 llvm::Value* _method; | |
358 | |
359 private: | |
360 llvm::Value* method() const { | |
361 return _method; | |
362 } | |
363 | |
364 // Method slot callback | |
365 protected: | |
366 void process_method_slot(llvm::Value** value, int offset); | |
367 | |
368 // Stack slot helper | |
369 protected: | |
370 bool stack_slot_needs_read(int index, SharkValue* value) { | |
371 ShouldNotReachHere(); // entry block shouldn't have stack | |
372 } | |
373 | |
374 // Local slot helper | |
375 protected: | |
376 bool local_slot_needs_read(int index, SharkValue* value) { | |
377 return value != NULL; | |
378 } | |
379 }; | |
380 | |
381 class SharkNormalEntryCacher : public SharkFunctionEntryCacher { | |
382 public: | |
383 SharkNormalEntryCacher(SharkFunction* function, llvm::Value* method) | |
384 : SharkFunctionEntryCacher(function, method) {} | |
385 }; | |
386 | |
387 class SharkOSREntryCacher : public SharkFunctionEntryCacher { | |
388 public: | |
389 SharkOSREntryCacher(SharkFunction* function, | |
390 llvm::Value* method, | |
391 llvm::Value* osr_buf) | |
392 : SharkFunctionEntryCacher(function, method), | |
393 _osr_buf( | |
394 builder()->CreateBitCast( | |
395 osr_buf, | |
396 llvm::PointerType::getUnqual( | |
397 llvm::ArrayType::get( | |
398 SharkType::intptr_type(), | |
399 max_locals() + max_monitors() * 2)))) {} | |
400 | |
401 private: | |
402 llvm::Value* _osr_buf; | |
403 | |
404 private: | |
405 llvm::Value* osr_buf() const { | |
406 return _osr_buf; | |
407 } | |
408 | |
409 // Callbacks | |
410 protected: | |
411 void process_monitor(int index, int box_offset, int obj_offset); | |
412 void process_local_slot(int index, SharkValue** value, int offset); | |
413 | |
414 // Helper | |
415 private: | |
416 llvm::Value* CreateAddressOfOSRBufEntry(int offset, const llvm::Type* type); | |
417 }; |