Mercurial > hg > graal-jvmci-8
annotate src/share/vm/c1/c1_CodeStubs.hpp @ 24218:719853999215 jvmci-0.32
Merge with jdk8u141-b15
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Mon, 14 Aug 2017 23:20:38 +0200 |
| parents | 89152779163c 0b85ccd62409 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 24170 | 2 * Copyright (c) 1999, 2016, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1295
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1295
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1295
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_C1_C1_CODESTUBS_HPP |
| 26 #define SHARE_VM_C1_C1_CODESTUBS_HPP | |
| 27 | |
| 28 #include "c1/c1_FrameMap.hpp" | |
| 29 #include "c1/c1_IR.hpp" | |
| 30 #include "c1/c1_Instruction.hpp" | |
| 31 #include "c1/c1_LIR.hpp" | |
| 32 #include "c1/c1_Runtime1.hpp" | |
| 33 #include "utilities/array.hpp" | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
34 #include "utilities/macros.hpp" |
| 1972 | 35 |
| 0 | 36 class CodeEmitInfo; |
| 37 class LIR_Assembler; | |
| 38 class LIR_OpVisitState; | |
| 39 | |
| 40 // CodeStubs are little 'out-of-line' pieces of code that | |
| 41 // usually handle slow cases of operations. All code stubs | |
| 42 // are collected and code is emitted at the end of the | |
| 43 // nmethod. | |
| 44 | |
| 45 class CodeStub: public CompilationResourceObj { | |
| 46 protected: | |
| 47 Label _entry; // label at the stub entry point | |
| 48 Label _continuation; // label where stub continues, if any | |
| 49 | |
| 50 public: | |
| 51 CodeStub() {} | |
| 52 | |
| 53 // code generation | |
| 54 void assert_no_unbound_labels() { assert(!_entry.is_unbound() && !_continuation.is_unbound(), "unbound label"); } | |
| 55 virtual void emit_code(LIR_Assembler* e) = 0; | |
| 56 virtual CodeEmitInfo* info() const { return NULL; } | |
| 57 virtual bool is_exception_throw_stub() const { return false; } | |
| 58 virtual bool is_range_check_stub() const { return false; } | |
| 59 virtual bool is_divbyzero_stub() const { return false; } | |
| 24170 | 60 virtual bool is_simple_exception_stub() const { return false; } |
| 0 | 61 #ifndef PRODUCT |
| 62 virtual void print_name(outputStream* out) const = 0; | |
| 63 #endif | |
| 64 | |
| 65 // label access | |
| 66 Label* entry() { return &_entry; } | |
| 67 Label* continuation() { return &_continuation; } | |
| 68 // for LIR | |
| 69 virtual void visit(LIR_OpVisitState* visit) { | |
| 70 #ifndef PRODUCT | |
| 71 if (LIRTracePeephole && Verbose) { | |
| 72 tty->print("no visitor for "); | |
| 73 print_name(tty); | |
| 74 tty->cr(); | |
| 75 } | |
| 76 #endif | |
| 77 } | |
| 78 }; | |
| 79 | |
| 80 | |
| 81 define_array(CodeStubArray, CodeStub*) | |
| 82 define_stack(_CodeStubList, CodeStubArray) | |
| 83 | |
| 84 class CodeStubList: public _CodeStubList { | |
| 85 public: | |
| 86 CodeStubList(): _CodeStubList() {} | |
| 87 | |
| 88 void append(CodeStub* stub) { | |
| 89 if (!contains(stub)) { | |
| 90 _CodeStubList::append(stub); | |
| 91 } | |
| 92 } | |
| 93 }; | |
| 94 | |
| 95 class CounterOverflowStub: public CodeStub { | |
| 96 private: | |
| 97 CodeEmitInfo* _info; | |
| 98 int _bci; | |
| 1783 | 99 LIR_Opr _method; |
| 0 | 100 |
| 101 public: | |
| 1783 | 102 CounterOverflowStub(CodeEmitInfo* info, int bci, LIR_Opr method) : _info(info), _bci(bci), _method(method) { |
| 0 | 103 } |
| 104 | |
| 105 virtual void emit_code(LIR_Assembler* e); | |
| 106 | |
| 107 virtual void visit(LIR_OpVisitState* visitor) { | |
| 108 visitor->do_slow_case(_info); | |
| 1783 | 109 visitor->do_input(_method); |
| 0 | 110 } |
| 111 | |
| 112 #ifndef PRODUCT | |
| 113 virtual void print_name(outputStream* out) const { out->print("CounterOverflowStub"); } | |
| 114 #endif // PRODUCT | |
| 115 | |
| 116 }; | |
| 117 | |
| 118 class ConversionStub: public CodeStub { | |
| 119 private: | |
| 120 Bytecodes::Code _bytecode; | |
| 121 LIR_Opr _input; | |
| 122 LIR_Opr _result; | |
| 123 | |
| 124 static float float_zero; | |
| 125 static double double_zero; | |
| 126 public: | |
| 127 ConversionStub(Bytecodes::Code bytecode, LIR_Opr input, LIR_Opr result) | |
| 128 : _bytecode(bytecode), _input(input), _result(result) { | |
| 129 } | |
| 130 | |
| 131 Bytecodes::Code bytecode() { return _bytecode; } | |
| 132 LIR_Opr input() { return _input; } | |
| 133 LIR_Opr result() { return _result; } | |
| 134 | |
| 135 virtual void emit_code(LIR_Assembler* e); | |
| 136 virtual void visit(LIR_OpVisitState* visitor) { | |
| 137 visitor->do_slow_case(); | |
| 138 visitor->do_input(_input); | |
| 139 visitor->do_output(_result); | |
| 140 } | |
| 141 #ifndef PRODUCT | |
| 142 virtual void print_name(outputStream* out) const { out->print("ConversionStub"); } | |
| 143 #endif // PRODUCT | |
| 144 }; | |
| 145 | |
| 146 | |
| 147 // Throws ArrayIndexOutOfBoundsException by default but can be | |
| 148 // configured to throw IndexOutOfBoundsException in constructor | |
| 149 class RangeCheckStub: public CodeStub { | |
| 150 private: | |
| 151 CodeEmitInfo* _info; | |
| 152 LIR_Opr _index; | |
| 153 bool _throw_index_out_of_bounds_exception; | |
| 154 | |
| 155 public: | |
| 156 RangeCheckStub(CodeEmitInfo* info, LIR_Opr index, bool throw_index_out_of_bounds_exception = false); | |
| 157 virtual void emit_code(LIR_Assembler* e); | |
| 158 virtual CodeEmitInfo* info() const { return _info; } | |
| 159 virtual bool is_exception_throw_stub() const { return true; } | |
| 160 virtual bool is_range_check_stub() const { return true; } | |
| 161 virtual void visit(LIR_OpVisitState* visitor) { | |
| 162 visitor->do_slow_case(_info); | |
| 163 visitor->do_input(_index); | |
| 164 } | |
| 165 #ifndef PRODUCT | |
| 166 virtual void print_name(outputStream* out) const { out->print("RangeCheckStub"); } | |
| 167 #endif // PRODUCT | |
| 168 }; | |
| 169 | |
| 8860 | 170 // stub used when predicate fails and deoptimization is needed |
| 171 class PredicateFailedStub: public CodeStub { | |
| 172 private: | |
| 173 CodeEmitInfo* _info; | |
| 174 | |
| 175 public: | |
| 176 PredicateFailedStub(CodeEmitInfo* info); | |
| 177 virtual void emit_code(LIR_Assembler* e); | |
| 178 virtual CodeEmitInfo* info() const { return _info; } | |
| 179 virtual void visit(LIR_OpVisitState* visitor) { | |
| 180 visitor->do_slow_case(_info); | |
| 181 } | |
| 182 #ifndef PRODUCT | |
| 183 virtual void print_name(outputStream* out) const { out->print("PredicateFailedStub"); } | |
| 184 #endif // PRODUCT | |
| 185 }; | |
| 0 | 186 |
| 187 class DivByZeroStub: public CodeStub { | |
| 188 private: | |
| 189 CodeEmitInfo* _info; | |
| 190 int _offset; | |
| 191 | |
| 192 public: | |
| 193 DivByZeroStub(CodeEmitInfo* info) | |
| 194 : _info(info), _offset(-1) { | |
| 195 } | |
| 196 DivByZeroStub(int offset, CodeEmitInfo* info) | |
| 197 : _info(info), _offset(offset) { | |
| 198 } | |
| 199 virtual void emit_code(LIR_Assembler* e); | |
| 200 virtual CodeEmitInfo* info() const { return _info; } | |
| 201 virtual bool is_exception_throw_stub() const { return true; } | |
| 202 virtual bool is_divbyzero_stub() const { return true; } | |
| 203 virtual void visit(LIR_OpVisitState* visitor) { | |
| 204 visitor->do_slow_case(_info); | |
| 205 } | |
| 206 #ifndef PRODUCT | |
| 207 virtual void print_name(outputStream* out) const { out->print("DivByZeroStub"); } | |
| 208 #endif // PRODUCT | |
| 209 }; | |
| 210 | |
| 211 | |
| 212 class ImplicitNullCheckStub: public CodeStub { | |
| 213 private: | |
| 214 CodeEmitInfo* _info; | |
| 215 int _offset; | |
| 216 | |
| 217 public: | |
| 218 ImplicitNullCheckStub(int offset, CodeEmitInfo* info) | |
| 219 : _offset(offset), _info(info) { | |
| 220 } | |
| 221 virtual void emit_code(LIR_Assembler* e); | |
| 222 virtual CodeEmitInfo* info() const { return _info; } | |
| 223 virtual bool is_exception_throw_stub() const { return true; } | |
| 224 virtual void visit(LIR_OpVisitState* visitor) { | |
| 225 visitor->do_slow_case(_info); | |
| 226 } | |
| 227 #ifndef PRODUCT | |
| 228 virtual void print_name(outputStream* out) const { out->print("ImplicitNullCheckStub"); } | |
| 229 #endif // PRODUCT | |
| 230 }; | |
| 231 | |
| 232 | |
| 233 class NewInstanceStub: public CodeStub { | |
| 234 private: | |
| 235 ciInstanceKlass* _klass; | |
| 236 LIR_Opr _klass_reg; | |
| 237 LIR_Opr _result; | |
| 238 CodeEmitInfo* _info; | |
| 239 Runtime1::StubID _stub_id; | |
| 240 | |
| 241 public: | |
| 242 NewInstanceStub(LIR_Opr klass_reg, LIR_Opr result, ciInstanceKlass* klass, CodeEmitInfo* info, Runtime1::StubID stub_id); | |
| 243 virtual void emit_code(LIR_Assembler* e); | |
| 244 virtual CodeEmitInfo* info() const { return _info; } | |
| 245 virtual void visit(LIR_OpVisitState* visitor) { | |
| 246 visitor->do_slow_case(_info); | |
| 247 visitor->do_input(_klass_reg); | |
| 248 visitor->do_output(_result); | |
| 249 } | |
| 250 #ifndef PRODUCT | |
| 251 virtual void print_name(outputStream* out) const { out->print("NewInstanceStub"); } | |
| 252 #endif // PRODUCT | |
| 253 }; | |
| 254 | |
| 255 | |
| 256 class NewTypeArrayStub: public CodeStub { | |
| 257 private: | |
| 258 LIR_Opr _klass_reg; | |
| 259 LIR_Opr _length; | |
| 260 LIR_Opr _result; | |
| 261 CodeEmitInfo* _info; | |
| 262 | |
| 263 public: | |
| 264 NewTypeArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info); | |
| 265 virtual void emit_code(LIR_Assembler* e); | |
| 266 virtual CodeEmitInfo* info() const { return _info; } | |
| 267 virtual void visit(LIR_OpVisitState* visitor) { | |
| 268 visitor->do_slow_case(_info); | |
| 269 visitor->do_input(_klass_reg); | |
| 270 visitor->do_input(_length); | |
| 271 assert(_result->is_valid(), "must be valid"); visitor->do_output(_result); | |
| 272 } | |
| 273 #ifndef PRODUCT | |
| 274 virtual void print_name(outputStream* out) const { out->print("NewTypeArrayStub"); } | |
| 275 #endif // PRODUCT | |
| 276 }; | |
| 277 | |
| 278 | |
| 279 class NewObjectArrayStub: public CodeStub { | |
| 280 private: | |
| 281 LIR_Opr _klass_reg; | |
| 282 LIR_Opr _length; | |
| 283 LIR_Opr _result; | |
| 284 CodeEmitInfo* _info; | |
| 285 | |
| 286 public: | |
| 287 NewObjectArrayStub(LIR_Opr klass_reg, LIR_Opr length, LIR_Opr result, CodeEmitInfo* info); | |
| 288 virtual void emit_code(LIR_Assembler* e); | |
| 289 virtual CodeEmitInfo* info() const { return _info; } | |
| 290 virtual void visit(LIR_OpVisitState* visitor) { | |
| 291 visitor->do_slow_case(_info); | |
| 292 visitor->do_input(_klass_reg); | |
| 293 visitor->do_input(_length); | |
| 294 assert(_result->is_valid(), "must be valid"); visitor->do_output(_result); | |
| 295 } | |
| 296 #ifndef PRODUCT | |
| 297 virtual void print_name(outputStream* out) const { out->print("NewObjectArrayStub"); } | |
| 298 #endif // PRODUCT | |
| 299 }; | |
| 300 | |
| 301 | |
| 302 class MonitorAccessStub: public CodeStub { | |
| 303 protected: | |
| 304 LIR_Opr _obj_reg; | |
| 305 LIR_Opr _lock_reg; | |
| 306 | |
| 307 public: | |
| 308 MonitorAccessStub(LIR_Opr obj_reg, LIR_Opr lock_reg) { | |
| 309 _obj_reg = obj_reg; | |
| 310 _lock_reg = lock_reg; | |
| 311 } | |
| 312 | |
| 313 #ifndef PRODUCT | |
| 314 virtual void print_name(outputStream* out) const { out->print("MonitorAccessStub"); } | |
| 315 #endif // PRODUCT | |
| 316 }; | |
| 317 | |
| 318 | |
| 319 class MonitorEnterStub: public MonitorAccessStub { | |
| 320 private: | |
| 321 CodeEmitInfo* _info; | |
| 322 | |
| 323 public: | |
| 324 MonitorEnterStub(LIR_Opr obj_reg, LIR_Opr lock_reg, CodeEmitInfo* info); | |
| 325 | |
| 326 virtual void emit_code(LIR_Assembler* e); | |
| 327 virtual CodeEmitInfo* info() const { return _info; } | |
| 328 virtual void visit(LIR_OpVisitState* visitor) { | |
| 329 visitor->do_input(_obj_reg); | |
| 330 visitor->do_input(_lock_reg); | |
| 331 visitor->do_slow_case(_info); | |
| 332 } | |
| 333 #ifndef PRODUCT | |
| 334 virtual void print_name(outputStream* out) const { out->print("MonitorEnterStub"); } | |
| 335 #endif // PRODUCT | |
| 336 }; | |
| 337 | |
| 338 | |
| 339 class MonitorExitStub: public MonitorAccessStub { | |
| 340 private: | |
| 341 bool _compute_lock; | |
| 342 int _monitor_ix; | |
| 343 | |
| 344 public: | |
| 345 MonitorExitStub(LIR_Opr lock_reg, bool compute_lock, int monitor_ix) | |
| 346 : MonitorAccessStub(LIR_OprFact::illegalOpr, lock_reg), | |
| 347 _compute_lock(compute_lock), _monitor_ix(monitor_ix) { } | |
| 348 virtual void emit_code(LIR_Assembler* e); | |
| 349 virtual void visit(LIR_OpVisitState* visitor) { | |
| 350 assert(_obj_reg->is_illegal(), "unused"); | |
| 351 if (_compute_lock) { | |
| 352 visitor->do_temp(_lock_reg); | |
| 353 } else { | |
| 354 visitor->do_input(_lock_reg); | |
| 355 } | |
| 356 } | |
| 357 #ifndef PRODUCT | |
| 358 virtual void print_name(outputStream* out) const { out->print("MonitorExitStub"); } | |
| 359 #endif // PRODUCT | |
| 360 }; | |
| 361 | |
| 362 | |
| 363 class PatchingStub: public CodeStub { | |
| 364 public: | |
| 365 enum PatchID { | |
| 366 access_field_id, | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
367 load_klass_id, |
|
12160
f98f5d48f511
7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents:
8860
diff
changeset
|
368 load_mirror_id, |
|
f98f5d48f511
7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents:
8860
diff
changeset
|
369 load_appendix_id |
| 0 | 370 }; |
| 371 enum constants { | |
| 372 patch_info_size = 3 | |
| 373 }; | |
| 374 private: | |
| 375 PatchID _id; | |
| 376 address _pc_start; | |
| 377 int _bytes_to_copy; | |
| 378 Label _patched_code_entry; | |
| 379 Label _patch_site_entry; | |
| 380 Label _patch_site_continuation; | |
| 381 Register _obj; | |
| 382 CodeEmitInfo* _info; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
383 int _index; // index of the patchable oop or Klass* in nmethod oop or metadata table if needed |
| 0 | 384 static int _patch_info_offset; |
| 385 | |
| 386 void align_patch_site(MacroAssembler* masm); | |
| 387 | |
| 388 public: | |
| 389 static int patch_info_offset() { return _patch_info_offset; } | |
| 390 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
391 PatchingStub(MacroAssembler* masm, PatchID id, int index = -1): |
| 0 | 392 _id(id) |
| 393 , _info(NULL) | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
394 , _index(index) { |
| 0 | 395 if (os::is_MP()) { |
| 396 // force alignment of patch sites on MP hardware so we | |
| 397 // can guarantee atomic writes to the patch site. | |
| 398 align_patch_site(masm); | |
| 399 } | |
| 400 _pc_start = masm->pc(); | |
| 401 masm->bind(_patch_site_entry); | |
| 402 } | |
| 403 | |
| 404 void install(MacroAssembler* masm, LIR_PatchCode patch_code, Register obj, CodeEmitInfo* info) { | |
| 405 _info = info; | |
| 406 _obj = obj; | |
| 407 masm->bind(_patch_site_continuation); | |
| 408 _bytes_to_copy = masm->pc() - pc_start(); | |
| 409 if (_id == PatchingStub::access_field_id) { | |
| 410 // embed a fixed offset to handle long patches which need to be offset by a word. | |
| 411 // the patching code will just add the field offset field to this offset so | |
| 412 // that we can refernce either the high or low word of a double word field. | |
| 413 int field_offset = 0; | |
| 414 switch (patch_code) { | |
| 415 case lir_patch_low: field_offset = lo_word_offset_in_bytes; break; | |
| 416 case lir_patch_high: field_offset = hi_word_offset_in_bytes; break; | |
| 417 case lir_patch_normal: field_offset = 0; break; | |
| 418 default: ShouldNotReachHere(); | |
| 419 } | |
| 420 NativeMovRegMem* n_move = nativeMovRegMem_at(pc_start()); | |
| 421 n_move->set_offset(field_offset); | |
|
12160
f98f5d48f511
7199175: JSR 292: C1 needs patching when invokedynamic/invokehandle call site is not linked
roland
parents:
8860
diff
changeset
|
422 } else if (_id == load_klass_id || _id == load_mirror_id || _id == load_appendix_id) { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6615
diff
changeset
|
423 assert(_obj != noreg, "must have register object for load_klass/load_mirror"); |
| 0 | 424 #ifdef ASSERT |
| 425 // verify that we're pointing at a NativeMovConstReg | |
| 426 nativeMovConstReg_at(pc_start()); | |
| 427 #endif | |
| 428 } else { | |
| 429 ShouldNotReachHere(); | |
| 430 } | |
| 431 assert(_bytes_to_copy <= (masm->pc() - pc_start()), "not enough bytes"); | |
| 432 } | |
| 433 | |
| 434 address pc_start() const { return _pc_start; } | |
| 435 PatchID id() const { return _id; } | |
| 436 | |
| 437 virtual void emit_code(LIR_Assembler* e); | |
| 438 virtual CodeEmitInfo* info() const { return _info; } | |
| 439 virtual void visit(LIR_OpVisitState* visitor) { | |
| 440 visitor->do_slow_case(_info); | |
| 441 } | |
| 442 #ifndef PRODUCT | |
| 443 virtual void print_name(outputStream* out) const { out->print("PatchingStub"); } | |
| 444 #endif // PRODUCT | |
| 445 }; | |
| 446 | |
| 447 | |
| 1295 | 448 //------------------------------------------------------------------------------ |
| 449 // DeoptimizeStub | |
| 450 // | |
| 451 class DeoptimizeStub : public CodeStub { | |
| 452 private: | |
| 453 CodeEmitInfo* _info; | |
| 454 | |
| 455 public: | |
| 456 DeoptimizeStub(CodeEmitInfo* info) : _info(new CodeEmitInfo(info)) {} | |
| 457 | |
| 458 virtual void emit_code(LIR_Assembler* e); | |
| 459 virtual CodeEmitInfo* info() const { return _info; } | |
| 460 virtual bool is_exception_throw_stub() const { return true; } | |
| 461 virtual void visit(LIR_OpVisitState* visitor) { | |
| 462 visitor->do_slow_case(_info); | |
| 463 } | |
| 464 #ifndef PRODUCT | |
| 465 virtual void print_name(outputStream* out) const { out->print("DeoptimizeStub"); } | |
| 466 #endif // PRODUCT | |
| 467 }; | |
| 468 | |
| 469 | |
| 0 | 470 class SimpleExceptionStub: public CodeStub { |
| 471 private: | |
| 472 LIR_Opr _obj; | |
| 473 Runtime1::StubID _stub; | |
| 474 CodeEmitInfo* _info; | |
| 475 | |
| 476 public: | |
| 477 SimpleExceptionStub(Runtime1::StubID stub, LIR_Opr obj, CodeEmitInfo* info): | |
| 478 _obj(obj), _info(info), _stub(stub) { | |
| 479 } | |
| 480 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
481 void set_obj(LIR_Opr obj) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
482 _obj = obj; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
483 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1552
diff
changeset
|
484 |
| 0 | 485 virtual void emit_code(LIR_Assembler* e); |
| 486 virtual CodeEmitInfo* info() const { return _info; } | |
| 487 virtual bool is_exception_throw_stub() const { return true; } | |
| 24170 | 488 virtual bool is_simple_exception_stub() const { return true; } |
| 0 | 489 virtual void visit(LIR_OpVisitState* visitor) { |
| 490 if (_obj->is_valid()) visitor->do_input(_obj); | |
| 491 visitor->do_slow_case(_info); | |
| 492 } | |
| 493 #ifndef PRODUCT | |
| 494 virtual void print_name(outputStream* out) const { out->print("SimpleExceptionStub"); } | |
| 495 #endif // PRODUCT | |
| 496 }; | |
| 497 | |
| 498 | |
| 499 | |
|
2168
e4fee0bdaa85
7008809: should report the class in ArrayStoreExceptions from compiled code
never
parents:
1972
diff
changeset
|
500 class ArrayStoreExceptionStub: public SimpleExceptionStub { |
| 0 | 501 private: |
| 502 CodeEmitInfo* _info; | |
| 503 | |
| 504 public: | |
|
2168
e4fee0bdaa85
7008809: should report the class in ArrayStoreExceptions from compiled code
never
parents:
1972
diff
changeset
|
505 ArrayStoreExceptionStub(LIR_Opr obj, CodeEmitInfo* info): SimpleExceptionStub(Runtime1::throw_array_store_exception_id, obj, info) {} |
| 0 | 506 #ifndef PRODUCT |
| 507 virtual void print_name(outputStream* out) const { out->print("ArrayStoreExceptionStub"); } | |
| 508 #endif // PRODUCT | |
| 509 }; | |
| 510 | |
| 511 | |
| 512 class ArrayCopyStub: public CodeStub { | |
| 513 private: | |
| 514 LIR_OpArrayCopy* _op; | |
| 515 | |
| 516 public: | |
| 517 ArrayCopyStub(LIR_OpArrayCopy* op): _op(op) { } | |
| 518 | |
| 519 LIR_Opr src() const { return _op->src(); } | |
| 520 LIR_Opr src_pos() const { return _op->src_pos(); } | |
| 521 LIR_Opr dst() const { return _op->dst(); } | |
| 522 LIR_Opr dst_pos() const { return _op->dst_pos(); } | |
| 523 LIR_Opr length() const { return _op->length(); } | |
| 524 LIR_Opr tmp() const { return _op->tmp(); } | |
| 525 | |
| 526 virtual void emit_code(LIR_Assembler* e); | |
| 527 virtual CodeEmitInfo* info() const { return _op->info(); } | |
| 528 virtual void visit(LIR_OpVisitState* visitor) { | |
| 529 // don't pass in the code emit info since it's processed in the fast path | |
| 530 visitor->do_slow_case(); | |
| 531 } | |
| 532 #ifndef PRODUCT | |
| 533 virtual void print_name(outputStream* out) const { out->print("ArrayCopyStub"); } | |
| 534 #endif // PRODUCT | |
| 535 }; | |
| 342 | 536 |
| 537 ////////////////////////////////////////////////////////////////////////////////////////// | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
538 #if INCLUDE_ALL_GCS |
| 342 | 539 |
| 540 // Code stubs for Garbage-First barriers. | |
| 541 class G1PreBarrierStub: public CodeStub { | |
| 542 private: | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
543 bool _do_load; |
| 342 | 544 LIR_Opr _addr; |
| 545 LIR_Opr _pre_val; | |
| 546 LIR_PatchCode _patch_code; | |
| 547 CodeEmitInfo* _info; | |
| 548 | |
| 549 public: | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
550 // Version that _does_ generate a load of the previous value from addr. |
| 342 | 551 // addr (the address of the field to be read) must be a LIR_Address |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
552 // pre_val (a temporary register) must be a register; |
| 342 | 553 G1PreBarrierStub(LIR_Opr addr, LIR_Opr pre_val, LIR_PatchCode patch_code, CodeEmitInfo* info) : |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
554 _addr(addr), _pre_val(pre_val), _do_load(true), |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
555 _patch_code(patch_code), _info(info) |
| 342 | 556 { |
| 557 assert(_pre_val->is_register(), "should be temporary register"); | |
| 558 assert(_addr->is_address(), "should be the address of the field"); | |
| 559 } | |
| 560 | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
561 // Version that _does not_ generate load of the previous value; the |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
562 // previous value is assumed to have already been loaded into pre_val. |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
563 G1PreBarrierStub(LIR_Opr pre_val) : |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
564 _addr(LIR_OprFact::illegalOpr), _pre_val(pre_val), _do_load(false), |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
565 _patch_code(lir_patch_none), _info(NULL) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
566 { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
567 assert(_pre_val->is_register(), "should be a register"); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
568 } |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
569 |
| 342 | 570 LIR_Opr addr() const { return _addr; } |
| 571 LIR_Opr pre_val() const { return _pre_val; } | |
| 572 LIR_PatchCode patch_code() const { return _patch_code; } | |
| 573 CodeEmitInfo* info() const { return _info; } | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
574 bool do_load() const { return _do_load; } |
| 342 | 575 |
| 576 virtual void emit_code(LIR_Assembler* e); | |
| 577 virtual void visit(LIR_OpVisitState* visitor) { | |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
578 if (_do_load) { |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
579 // don't pass in the code emit info since it's processed in the fast |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
580 // path |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
581 if (_info != NULL) |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
582 visitor->do_slow_case(_info); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
583 else |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
584 visitor->do_slow_case(); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
585 |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
586 visitor->do_input(_addr); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
587 visitor->do_temp(_pre_val); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
588 } else { |
| 342 | 589 visitor->do_slow_case(); |
|
3249
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
590 visitor->do_input(_pre_val); |
|
e1162778c1c8
7009266: G1: assert(obj->is_oop_or_null(true )) failed: Error
johnc
parents:
2168
diff
changeset
|
591 } |
| 342 | 592 } |
| 593 #ifndef PRODUCT | |
| 594 virtual void print_name(outputStream* out) const { out->print("G1PreBarrierStub"); } | |
| 595 #endif // PRODUCT | |
| 596 }; | |
| 597 | |
| 598 class G1PostBarrierStub: public CodeStub { | |
| 599 private: | |
| 600 LIR_Opr _addr; | |
| 601 LIR_Opr _new_val; | |
| 602 | |
| 603 static jbyte* _byte_map_base; | |
| 604 static jbyte* byte_map_base_slow(); | |
| 605 static jbyte* byte_map_base() { | |
| 606 if (_byte_map_base == NULL) { | |
| 607 _byte_map_base = byte_map_base_slow(); | |
| 608 } | |
| 609 return _byte_map_base; | |
| 610 } | |
| 611 | |
| 612 public: | |
| 613 // addr (the address of the object head) and new_val must be registers. | |
| 614 G1PostBarrierStub(LIR_Opr addr, LIR_Opr new_val): _addr(addr), _new_val(new_val) { } | |
| 615 | |
| 616 LIR_Opr addr() const { return _addr; } | |
| 617 LIR_Opr new_val() const { return _new_val; } | |
| 618 | |
| 619 virtual void emit_code(LIR_Assembler* e); | |
| 620 virtual void visit(LIR_OpVisitState* visitor) { | |
| 621 // don't pass in the code emit info since it's processed in the fast path | |
| 622 visitor->do_slow_case(); | |
| 623 visitor->do_input(_addr); | |
| 624 visitor->do_input(_new_val); | |
| 625 } | |
| 626 #ifndef PRODUCT | |
| 627 virtual void print_name(outputStream* out) const { out->print("G1PostBarrierStub"); } | |
| 628 #endif // PRODUCT | |
| 629 }; | |
| 630 | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6725
diff
changeset
|
631 #endif // INCLUDE_ALL_GCS |
| 342 | 632 ////////////////////////////////////////////////////////////////////////////////////////// |
| 1972 | 633 |
| 634 #endif // SHARE_VM_C1_C1_CODESTUBS_HPP |