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comparison src/share/vm/interpreter/bytecode.hpp @ 1602:136b78722a08

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6939203: JSR 292 needs method handle constants Summary: Add new CP types CONSTANT_MethodHandle, CONSTANT_MethodType; extend 'ldc' bytecode. Reviewed-by: twisti, never
author jrose
date Wed, 09 Jun 2010 18:50:45 -0700
parents e9ff18c4ace7
children f95d63e2154a
comparison
equal deleted inserted replaced
1585:49fac4acd688 1602:136b78722a08
74 address p = addr_at(is_wide ? 2 : 1); 74 address p = addr_at(is_wide ? 2 : 1);
75 if (can_use_native_byte_order(bc, is_wide)) 75 if (can_use_native_byte_order(bc, is_wide))
76 return Bytes::get_native_u2(p); 76 return Bytes::get_native_u2(p);
77 else return Bytes::get_Java_u2(p); 77 else return Bytes::get_Java_u2(p);
78 } 78 }
79 int get_index_u1_cpcache(Bytecodes::Code bc) const {
80 assert_same_format_as(bc); assert_index_size(1, bc);
81 return *(jubyte*)addr_at(1) + constantPoolOopDesc::CPCACHE_INDEX_TAG;
82 }
79 int get_index_u2_cpcache(Bytecodes::Code bc) const { 83 int get_index_u2_cpcache(Bytecodes::Code bc) const {
80 assert_same_format_as(bc); assert_index_size(2, bc); assert_native_index(bc); 84 assert_same_format_as(bc); assert_index_size(2, bc); assert_native_index(bc);
81 return Bytes::get_native_u2(addr_at(1)) DEBUG_ONLY(+ constantPoolOopDesc::CPCACHE_INDEX_TAG); 85 return Bytes::get_native_u2(addr_at(1)) + constantPoolOopDesc::CPCACHE_INDEX_TAG;
82 } 86 }
83 int get_index_u4(Bytecodes::Code bc) const { 87 int get_index_u4(Bytecodes::Code bc) const {
84 assert_same_format_as(bc); assert_index_size(4, bc); 88 assert_same_format_as(bc); assert_index_size(4, bc);
85 assert(can_use_native_byte_order(bc), ""); 89 assert(can_use_native_byte_order(bc), "");
86 return Bytes::get_native_u4(addr_at(1)); 90 return Bytes::get_native_u4(addr_at(1));
150 inline friend Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp); 154 inline friend Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp);
151 }; 155 };
152 156
153 inline Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp) { 157 inline Bytecode_lookupswitch* Bytecode_lookupswitch_at(address bcp) {
154 Bytecode_lookupswitch* b = (Bytecode_lookupswitch*)bcp; 158 Bytecode_lookupswitch* b = (Bytecode_lookupswitch*)bcp;
155 debug_only(b->verify()); 159 DEBUG_ONLY(b->verify());
156 return b; 160 return b;
157 } 161 }
158 162
159 163
160 class Bytecode_tableswitch: public Bytecode { 164 class Bytecode_tableswitch: public Bytecode {
172 inline friend Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp); 176 inline friend Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp);
173 }; 177 };
174 178
175 inline Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp) { 179 inline Bytecode_tableswitch* Bytecode_tableswitch_at(address bcp) {
176 Bytecode_tableswitch* b = (Bytecode_tableswitch*)bcp; 180 Bytecode_tableswitch* b = (Bytecode_tableswitch*)bcp;
177 debug_only(b->verify()); 181 DEBUG_ONLY(b->verify());
178 return b; 182 return b;
179 } 183 }
180 184
181 185
182 // Abstraction for invoke_{virtual, static, interface, special} 186 // Common code for decoding invokes and field references.
183 187
184 class Bytecode_invoke: public ResourceObj { 188 class Bytecode_member_ref: public ResourceObj {
185 protected: 189 protected:
186 methodHandle _method; // method containing the bytecode 190 methodHandle _method; // method containing the bytecode
187 int _bci; // position of the bytecode 191 int _bci; // position of the bytecode
188 192
189 Bytecode_invoke(methodHandle method, int bci) : _method(method), _bci(bci) {} 193 Bytecode_member_ref(methodHandle method, int bci) : _method(method), _bci(bci) {}
190 194
191 public: 195 public:
192 void verify() const;
193
194 // Attributes 196 // Attributes
195 methodHandle method() const { return _method; } 197 methodHandle method() const { return _method; }
196 int bci() const { return _bci; } 198 int bci() const { return _bci; }
197 address bcp() const { return _method->bcp_from(bci()); } 199 address bcp() const { return _method->bcp_from(bci()); }
198 200 Bytecode* bytecode() const { return Bytecode_at(bcp()); }
199 int index() const; // the constant pool index for the invoke 201
200 symbolOop name() const; // returns the name of the invoked method 202 int index() const; // cache index (loaded from instruction)
201 symbolOop signature() const; // returns the signature of the invoked method 203 int pool_index() const; // constant pool index
202 BasicType result_type(Thread *thread) const; // returns the result type of the invoke 204 symbolOop name() const; // returns the name of the method or field
205 symbolOop signature() const; // returns the signature of the method or field
206
207 BasicType result_type(Thread* thread) const; // returns the result type of the getfield or invoke
203 208
204 Bytecodes::Code code() const { return Bytecodes::code_at(bcp(), _method()); } 209 Bytecodes::Code code() const { return Bytecodes::code_at(bcp(), _method()); }
205 Bytecodes::Code adjusted_invoke_code() const { return Bytecodes::java_code(code()); } 210 Bytecodes::Code java_code() const { return Bytecodes::java_code(code()); }
206 211 };
212
213 // Abstraction for invoke_{virtual, static, interface, special}
214
215 class Bytecode_invoke: public Bytecode_member_ref {
216 protected:
217 Bytecode_invoke(methodHandle method, int bci) : Bytecode_member_ref(method, bci) {}
218
219 public:
220 void verify() const;
221
222 // Attributes
207 methodHandle static_target(TRAPS); // "specified" method (from constant pool) 223 methodHandle static_target(TRAPS); // "specified" method (from constant pool)
208 224
209 // Testers 225 // Testers
210 bool is_invokeinterface() const { return adjusted_invoke_code() == Bytecodes::_invokeinterface; } 226 bool is_invokeinterface() const { return java_code() == Bytecodes::_invokeinterface; }
211 bool is_invokevirtual() const { return adjusted_invoke_code() == Bytecodes::_invokevirtual; } 227 bool is_invokevirtual() const { return java_code() == Bytecodes::_invokevirtual; }
212 bool is_invokestatic() const { return adjusted_invoke_code() == Bytecodes::_invokestatic; } 228 bool is_invokestatic() const { return java_code() == Bytecodes::_invokestatic; }
213 bool is_invokespecial() const { return adjusted_invoke_code() == Bytecodes::_invokespecial; } 229 bool is_invokespecial() const { return java_code() == Bytecodes::_invokespecial; }
214 bool is_invokedynamic() const { return adjusted_invoke_code() == Bytecodes::_invokedynamic; } 230 bool is_invokedynamic() const { return java_code() == Bytecodes::_invokedynamic; }
215 231
216 bool has_receiver() const { return !is_invokestatic() && !is_invokedynamic(); } 232 bool has_receiver() const { return !is_invokestatic() && !is_invokedynamic(); }
217 233
218 bool is_valid() const { return is_invokeinterface() || 234 bool is_valid() const { return is_invokeinterface() ||
219 is_invokevirtual() || 235 is_invokevirtual() ||
228 inline friend Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci); 244 inline friend Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci);
229 }; 245 };
230 246
231 inline Bytecode_invoke* Bytecode_invoke_at(methodHandle method, int bci) { 247 inline Bytecode_invoke* Bytecode_invoke_at(methodHandle method, int bci) {
232 Bytecode_invoke* b = new Bytecode_invoke(method, bci); 248 Bytecode_invoke* b = new Bytecode_invoke(method, bci);
233 debug_only(b->verify()); 249 DEBUG_ONLY(b->verify());
234 return b; 250 return b;
235 } 251 }
236 252
237 inline Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci) { 253 inline Bytecode_invoke* Bytecode_invoke_at_check(methodHandle method, int bci) {
238 Bytecode_invoke* b = new Bytecode_invoke(method, bci); 254 Bytecode_invoke* b = new Bytecode_invoke(method, bci);
239 return b->is_valid() ? b : NULL; 255 return b->is_valid() ? b : NULL;
240 } 256 }
241 257
242 258
243 // Abstraction for all field accesses (put/get field/static_ 259 // Abstraction for all field accesses (put/get field/static)
244 class Bytecode_field: public Bytecode { 260 class Bytecode_field: public Bytecode_member_ref {
245 public: 261 protected:
262 Bytecode_field(methodHandle method, int bci) : Bytecode_member_ref(method, bci) {}
263
264 public:
265 // Testers
266 bool is_getfield() const { return java_code() == Bytecodes::_getfield; }
267 bool is_putfield() const { return java_code() == Bytecodes::_putfield; }
268 bool is_getstatic() const { return java_code() == Bytecodes::_getstatic; }
269 bool is_putstatic() const { return java_code() == Bytecodes::_putstatic; }
270
271 bool is_getter() const { return is_getfield() || is_getstatic(); }
272 bool is_static() const { return is_getstatic() || is_putstatic(); }
273
274 bool is_valid() const { return is_getfield() ||
275 is_putfield() ||
276 is_getstatic() ||
277 is_putstatic(); }
246 void verify() const; 278 void verify() const;
247 279
248 int index() const; 280 // Creation
249 bool is_static() const; 281 inline friend Bytecode_field* Bytecode_field_at(methodHandle method, int bci);
250 282 };
251 // Creation 283
252 inline friend Bytecode_field* Bytecode_field_at(const methodOop method, address bcp); 284 inline Bytecode_field* Bytecode_field_at(methodHandle method, int bci) {
253 }; 285 Bytecode_field* b = new Bytecode_field(method, bci);
254 286 DEBUG_ONLY(b->verify());
255 inline Bytecode_field* Bytecode_field_at(const methodOop method, address bcp) {
256 Bytecode_field* b = (Bytecode_field*)bcp;
257 debug_only(b->verify());
258 return b; 287 return b;
259 } 288 }
260 289
261 290
262 // Abstraction for checkcast 291 // Abstraction for checkcast
272 inline friend Bytecode_checkcast* Bytecode_checkcast_at(address bcp); 301 inline friend Bytecode_checkcast* Bytecode_checkcast_at(address bcp);
273 }; 302 };
274 303
275 inline Bytecode_checkcast* Bytecode_checkcast_at(address bcp) { 304 inline Bytecode_checkcast* Bytecode_checkcast_at(address bcp) {
276 Bytecode_checkcast* b = (Bytecode_checkcast*)bcp; 305 Bytecode_checkcast* b = (Bytecode_checkcast*)bcp;
277 debug_only(b->verify()); 306 DEBUG_ONLY(b->verify());
278 return b; 307 return b;
279 } 308 }
280 309
281 310
282 // Abstraction for instanceof 311 // Abstraction for instanceof
292 inline friend Bytecode_instanceof* Bytecode_instanceof_at(address bcp); 321 inline friend Bytecode_instanceof* Bytecode_instanceof_at(address bcp);
293 }; 322 };
294 323
295 inline Bytecode_instanceof* Bytecode_instanceof_at(address bcp) { 324 inline Bytecode_instanceof* Bytecode_instanceof_at(address bcp) {
296 Bytecode_instanceof* b = (Bytecode_instanceof*)bcp; 325 Bytecode_instanceof* b = (Bytecode_instanceof*)bcp;
297 debug_only(b->verify()); 326 DEBUG_ONLY(b->verify());
298 return b; 327 return b;
299 } 328 }
300 329
301 330
302 class Bytecode_new: public Bytecode { 331 class Bytecode_new: public Bytecode {
310 inline friend Bytecode_new* Bytecode_new_at(address bcp); 339 inline friend Bytecode_new* Bytecode_new_at(address bcp);
311 }; 340 };
312 341
313 inline Bytecode_new* Bytecode_new_at(address bcp) { 342 inline Bytecode_new* Bytecode_new_at(address bcp) {
314 Bytecode_new* b = (Bytecode_new*)bcp; 343 Bytecode_new* b = (Bytecode_new*)bcp;
315 debug_only(b->verify()); 344 DEBUG_ONLY(b->verify());
316 return b; 345 return b;
317 } 346 }
318 347
319 348
320 class Bytecode_multianewarray: public Bytecode { 349 class Bytecode_multianewarray: public Bytecode {
328 inline friend Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp); 357 inline friend Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp);
329 }; 358 };
330 359
331 inline Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp) { 360 inline Bytecode_multianewarray* Bytecode_multianewarray_at(address bcp) {
332 Bytecode_multianewarray* b = (Bytecode_multianewarray*)bcp; 361 Bytecode_multianewarray* b = (Bytecode_multianewarray*)bcp;
333 debug_only(b->verify()); 362 DEBUG_ONLY(b->verify());
334 return b; 363 return b;
335 } 364 }
336 365
337 366
338 class Bytecode_anewarray: public Bytecode { 367 class Bytecode_anewarray: public Bytecode {
346 inline friend Bytecode_anewarray* Bytecode_anewarray_at(address bcp); 375 inline friend Bytecode_anewarray* Bytecode_anewarray_at(address bcp);
347 }; 376 };
348 377
349 inline Bytecode_anewarray* Bytecode_anewarray_at(address bcp) { 378 inline Bytecode_anewarray* Bytecode_anewarray_at(address bcp) {
350 Bytecode_anewarray* b = (Bytecode_anewarray*)bcp; 379 Bytecode_anewarray* b = (Bytecode_anewarray*)bcp;
351 debug_only(b->verify()); 380 DEBUG_ONLY(b->verify());
352 return b; 381 return b;
353 } 382 }
354 383
355 384
356 // Abstraction for ldc, ldc_w and ldc2_w 385 // Abstraction for ldc, ldc_w and ldc2_w
357 386
358 class Bytecode_loadconstant: public Bytecode { 387 class Bytecode_loadconstant: public ResourceObj {
359 public: 388 private:
389 int _bci;
390 methodHandle _method;
391
392 Bytecodes::Code code() const { return bytecode()->code(); }
393
394 int raw_index() const;
395
396 Bytecode_loadconstant(methodHandle method, int bci) : _method(method), _bci(bci) {}
397
398 public:
399 // Attributes
400 methodHandle method() const { return _method; }
401 int bci() const { return _bci; }
402 address bcp() const { return _method->bcp_from(bci()); }
403 Bytecode* bytecode() const { return Bytecode_at(bcp()); }
404
360 void verify() const { 405 void verify() const {
406 assert(_method.not_null(), "must supply method");
361 Bytecodes::Code stdc = Bytecodes::java_code(code()); 407 Bytecodes::Code stdc = Bytecodes::java_code(code());
362 assert(stdc == Bytecodes::_ldc || 408 assert(stdc == Bytecodes::_ldc ||
363 stdc == Bytecodes::_ldc_w || 409 stdc == Bytecodes::_ldc_w ||
364 stdc == Bytecodes::_ldc2_w, "load constant"); 410 stdc == Bytecodes::_ldc2_w, "load constant");
365 } 411 }
366 412
367 int index() const; 413 // Only non-standard bytecodes (fast_aldc) have CP cache indexes.
368 414 bool has_cache_index() const { return code() >= Bytecodes::number_of_java_codes; }
369 inline friend Bytecode_loadconstant* Bytecode_loadconstant_at(const methodOop method, address bcp); 415
370 }; 416 int pool_index() const; // index into constant pool
371 417 int cache_index() const { // index into CP cache (or -1 if none)
372 inline Bytecode_loadconstant* Bytecode_loadconstant_at(const methodOop method, address bcp) { 418 return has_cache_index() ? raw_index() : -1;
373 Bytecode_loadconstant* b = (Bytecode_loadconstant*)bcp; 419 }
374 debug_only(b->verify()); 420
375 return b; 421 BasicType result_type() const; // returns the result type of the ldc
376 } 422
423 oop resolve_constant(TRAPS) const;
424
425 // Creation
426 inline friend Bytecode_loadconstant* Bytecode_loadconstant_at(methodHandle method, int bci);
427 };
428
429 inline Bytecode_loadconstant* Bytecode_loadconstant_at(methodHandle method, int bci) {
430 Bytecode_loadconstant* b = new Bytecode_loadconstant(method, bci);
431 DEBUG_ONLY(b->verify());
432 return b;
433 }