1 /* 2 * Copyright (c) 2000, 2022, 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 #include "precompiled.hpp" 26 #include "c1/c1_CodeStubs.hpp" 27 #include "c1/c1_InstructionPrinter.hpp" 28 #include "c1/c1_LIR.hpp" 29 #include "c1/c1_LIRAssembler.hpp" 30 #include "c1/c1_ValueStack.hpp" 31 #include "ci/ciInlineKlass.hpp" 32 #include "ci/ciInstance.hpp" 33 #include "runtime/safepointMechanism.inline.hpp" 34 #include "runtime/sharedRuntime.hpp" 35 #include "runtime/vm_version.hpp" 36 37 Register LIR_Opr::as_register() const { 38 return FrameMap::cpu_rnr2reg(cpu_regnr()); 39 } 40 41 Register LIR_Opr::as_register_lo() const { 42 return FrameMap::cpu_rnr2reg(cpu_regnrLo()); 43 } 44 45 Register LIR_Opr::as_register_hi() const { 46 return FrameMap::cpu_rnr2reg(cpu_regnrHi()); 47 } 48 49 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal(); 50 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr(); 51 52 LIR_Opr LIR_OprFact::value_type(ValueType* type) { 53 ValueTag tag = type->tag(); 54 switch (tag) { 55 case metaDataTag : { 56 ClassConstant* c = type->as_ClassConstant(); 57 if (c != NULL && !c->value()->is_loaded()) { 58 return LIR_OprFact::metadataConst(NULL); 59 } else if (c != NULL) { 60 return LIR_OprFact::metadataConst(c->value()->constant_encoding()); 61 } else { 62 MethodConstant* m = type->as_MethodConstant(); 63 assert (m != NULL, "not a class or a method?"); 64 return LIR_OprFact::metadataConst(m->value()->constant_encoding()); 65 } 66 } 67 case objectTag : { 68 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding()); 69 } 70 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value()); 71 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value()); 72 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value()); 73 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value()); 74 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value()); 75 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1); 76 } 77 } 78 79 80 //--------------------------------------------------- 81 82 83 LIR_Address::Scale LIR_Address::scale(BasicType type) { 84 int elem_size = type2aelembytes(type); 85 switch (elem_size) { 86 case 1: return LIR_Address::times_1; 87 case 2: return LIR_Address::times_2; 88 case 4: return LIR_Address::times_4; 89 case 8: return LIR_Address::times_8; 90 } 91 ShouldNotReachHere(); 92 return LIR_Address::times_1; 93 } 94 95 //--------------------------------------------------- 96 97 char LIR_Opr::type_char(BasicType t) { 98 switch (t) { 99 case T_ARRAY: 100 case T_PRIMITIVE_OBJECT: 101 t = T_OBJECT; 102 case T_BOOLEAN: 103 case T_CHAR: 104 case T_FLOAT: 105 case T_DOUBLE: 106 case T_BYTE: 107 case T_SHORT: 108 case T_INT: 109 case T_LONG: 110 case T_OBJECT: 111 case T_ADDRESS: 112 case T_VOID: 113 return ::type2char(t); 114 case T_METADATA: 115 return 'M'; 116 case T_ILLEGAL: 117 return '?'; 118 119 default: 120 ShouldNotReachHere(); 121 return '?'; 122 } 123 } 124 125 #ifndef PRODUCT 126 void LIR_Opr::validate_type() const { 127 128 #ifdef ASSERT 129 if (!is_pointer() && !is_illegal()) { 130 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160 131 switch (as_BasicType(type_field())) { 132 case T_LONG: 133 assert((kindfield == cpu_register || kindfield == stack_value) && 134 size_field() == double_size, "must match"); 135 break; 136 case T_FLOAT: 137 // FP return values can be also in CPU registers on ARM (softfp ABI) 138 assert((kindfield == fpu_register || kindfield == stack_value 139 ARM_ONLY(|| kindfield == cpu_register) ) && 140 size_field() == single_size, "must match"); 141 break; 142 case T_DOUBLE: 143 // FP return values can be also in CPU registers on ARM (softfp ABI) 144 assert((kindfield == fpu_register || kindfield == stack_value 145 ARM_ONLY(|| kindfield == cpu_register) ) && 146 size_field() == double_size, "must match"); 147 break; 148 case T_BOOLEAN: 149 case T_CHAR: 150 case T_BYTE: 151 case T_SHORT: 152 case T_INT: 153 case T_ADDRESS: 154 case T_OBJECT: 155 case T_METADATA: 156 case T_ARRAY: 157 case T_PRIMITIVE_OBJECT: 158 assert((kindfield == cpu_register || kindfield == stack_value) && 159 size_field() == single_size, "must match"); 160 break; 161 162 case T_ILLEGAL: 163 // XXX TKR also means unknown right now 164 // assert(is_illegal(), "must match"); 165 break; 166 167 default: 168 ShouldNotReachHere(); 169 } 170 } 171 #endif 172 173 } 174 #endif // PRODUCT 175 176 177 bool LIR_Opr::is_oop() const { 178 if (is_pointer()) { 179 return pointer()->is_oop_pointer(); 180 } else { 181 OprType t= type_field(); 182 assert(t != unknown_type, "not set"); 183 return t == object_type; 184 } 185 } 186 187 188 189 void LIR_Op2::verify() const { 190 #ifdef ASSERT 191 switch (code()) { 192 case lir_xchg: 193 break; 194 195 default: 196 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(), 197 "can't produce oops from arith"); 198 } 199 200 if (two_operand_lir_form) { 201 202 #ifdef ASSERT 203 bool threeOperandForm = false; 204 #ifdef S390 205 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()). 206 threeOperandForm = 207 code() == lir_shl || 208 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT)); 209 #endif 210 #endif 211 212 switch (code()) { 213 case lir_add: 214 case lir_sub: 215 case lir_mul: 216 case lir_div: 217 case lir_rem: 218 case lir_logic_and: 219 case lir_logic_or: 220 case lir_logic_xor: 221 case lir_shl: 222 case lir_shr: 223 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match"); 224 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid"); 225 break; 226 227 // special handling for lir_ushr because of write barriers 228 case lir_ushr: 229 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant"); 230 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid"); 231 break; 232 233 default: 234 break; 235 } 236 } 237 #endif 238 } 239 240 241 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block) 242 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL) 243 , _label(block->label()) 244 , _block(block) 245 , _ublock(NULL) 246 , _stub(NULL) { 247 } 248 249 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) : 250 LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL) 251 , _label(stub->entry()) 252 , _block(NULL) 253 , _ublock(NULL) 254 , _stub(stub) { 255 } 256 257 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock) 258 : LIR_Op2(lir_cond_float_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL) 259 , _label(block->label()) 260 , _block(block) 261 , _ublock(ublock) 262 , _stub(NULL) 263 { 264 } 265 266 void LIR_OpBranch::change_block(BlockBegin* b) { 267 assert(_block != NULL, "must have old block"); 268 assert(_block->label() == label(), "must be equal"); 269 270 _block = b; 271 _label = b->label(); 272 } 273 274 void LIR_OpBranch::change_ublock(BlockBegin* b) { 275 assert(_ublock != NULL, "must have old block"); 276 _ublock = b; 277 } 278 279 void LIR_OpBranch::negate_cond() { 280 switch (cond()) { 281 case lir_cond_equal: set_cond(lir_cond_notEqual); break; 282 case lir_cond_notEqual: set_cond(lir_cond_equal); break; 283 case lir_cond_less: set_cond(lir_cond_greaterEqual); break; 284 case lir_cond_lessEqual: set_cond(lir_cond_greater); break; 285 case lir_cond_greaterEqual: set_cond(lir_cond_less); break; 286 case lir_cond_greater: set_cond(lir_cond_lessEqual); break; 287 default: ShouldNotReachHere(); 288 } 289 } 290 291 292 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 293 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, 294 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, 295 CodeStub* stub, bool need_null_check) 296 297 : LIR_Op(code, result, NULL) 298 , _object(object) 299 , _array(LIR_OprFact::illegalOpr) 300 , _klass(klass) 301 , _tmp1(tmp1) 302 , _tmp2(tmp2) 303 , _tmp3(tmp3) 304 , _fast_check(fast_check) 305 , _info_for_patch(info_for_patch) 306 , _info_for_exception(info_for_exception) 307 , _stub(stub) 308 , _profiled_method(NULL) 309 , _profiled_bci(-1) 310 , _should_profile(false) 311 , _need_null_check(need_null_check) 312 { 313 if (code == lir_checkcast) { 314 assert(info_for_exception != NULL, "checkcast throws exceptions"); 315 } else if (code == lir_instanceof) { 316 assert(info_for_exception == NULL, "instanceof throws no exceptions"); 317 } else { 318 ShouldNotReachHere(); 319 } 320 } 321 322 323 324 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception) 325 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL) 326 , _object(object) 327 , _array(array) 328 , _klass(NULL) 329 , _tmp1(tmp1) 330 , _tmp2(tmp2) 331 , _tmp3(tmp3) 332 , _fast_check(false) 333 , _info_for_patch(NULL) 334 , _info_for_exception(info_for_exception) 335 , _stub(NULL) 336 , _profiled_method(NULL) 337 , _profiled_bci(-1) 338 , _should_profile(false) 339 , _need_null_check(true) 340 { 341 if (code == lir_store_check) { 342 _stub = new ArrayStoreExceptionStub(object, info_for_exception); 343 assert(info_for_exception != NULL, "store_check throws exceptions"); 344 } else { 345 ShouldNotReachHere(); 346 } 347 } 348 349 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) 350 : LIR_Op(lir_flattened_array_check, LIR_OprFact::illegalOpr, NULL) 351 , _array(array) 352 , _value(value) 353 , _tmp(tmp) 354 , _stub(stub) {} 355 356 357 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp) 358 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, NULL) 359 , _array(array) 360 , _tmp(tmp) {} 361 362 363 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 364 LIR_Opr tmp1, LIR_Opr tmp2, 365 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 366 CodeEmitInfo* info, CodeStub* stub) 367 : LIR_Op(lir_substitutability_check, result, info) 368 , _left(left) 369 , _right(right) 370 , _equal_result(equal_result) 371 , _not_equal_result(not_equal_result) 372 , _tmp1(tmp1) 373 , _tmp2(tmp2) 374 , _left_klass(left_klass) 375 , _right_klass(right_klass) 376 , _left_klass_op(left_klass_op) 377 , _right_klass_op(right_klass_op) 378 , _stub(stub) {} 379 380 381 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, 382 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) 383 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info) 384 , _src(src) 385 , _src_pos(src_pos) 386 , _dst(dst) 387 , _dst_pos(dst_pos) 388 , _length(length) 389 , _tmp(tmp) 390 , _expected_type(expected_type) 391 , _flags(flags) { 392 _stub = new ArrayCopyStub(this); 393 } 394 395 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) 396 : LIR_Op(lir_updatecrc32, res, NULL) 397 , _crc(crc) 398 , _val(val) { 399 } 400 401 //-------------------verify-------------------------- 402 403 void LIR_Op1::verify() const { 404 switch(code()) { 405 case lir_move: 406 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be"); 407 break; 408 case lir_null_check: 409 assert(in_opr()->is_register(), "must be"); 410 break; 411 case lir_return: 412 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be"); 413 break; 414 default: 415 break; 416 } 417 } 418 419 void LIR_OpRTCall::verify() const { 420 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function"); 421 } 422 423 //-------------------visits-------------------------- 424 425 // complete rework of LIR instruction visitor. 426 // The virtual call for each instruction type is replaced by a big 427 // switch that adds the operands for each instruction 428 429 void LIR_OpVisitState::visit(LIR_Op* op) { 430 // copy information from the LIR_Op 431 reset(); 432 set_op(op); 433 434 switch (op->code()) { 435 436 // LIR_Op0 437 case lir_fpop_raw: // result and info always invalid 438 case lir_breakpoint: // result and info always invalid 439 case lir_membar: // result and info always invalid 440 case lir_membar_acquire: // result and info always invalid 441 case lir_membar_release: // result and info always invalid 442 case lir_membar_loadload: // result and info always invalid 443 case lir_membar_storestore: // result and info always invalid 444 case lir_membar_loadstore: // result and info always invalid 445 case lir_membar_storeload: // result and info always invalid 446 case lir_check_orig_pc: // result and info always invalid 447 case lir_on_spin_wait: 448 { 449 assert(op->as_Op0() != NULL, "must be"); 450 assert(op->_info == NULL, "info not used by this instruction"); 451 assert(op->_result->is_illegal(), "not used"); 452 break; 453 } 454 455 case lir_nop: // may have info, result always invalid 456 case lir_std_entry: // may have result, info always invalid 457 case lir_osr_entry: // may have result, info always invalid 458 case lir_get_thread: // may have result, info always invalid 459 { 460 assert(op->as_Op0() != NULL, "must be"); 461 if (op->_info != NULL) do_info(op->_info); 462 if (op->_result->is_valid()) do_output(op->_result); 463 break; 464 } 465 466 467 // LIR_OpLabel 468 case lir_label: // result and info always invalid 469 { 470 assert(op->as_OpLabel() != NULL, "must be"); 471 assert(op->_info == NULL, "info not used by this instruction"); 472 assert(op->_result->is_illegal(), "not used"); 473 break; 474 } 475 476 477 // LIR_Op1 478 case lir_fxch: // input always valid, result and info always invalid 479 case lir_fld: // input always valid, result and info always invalid 480 case lir_push: // input always valid, result and info always invalid 481 case lir_pop: // input always valid, result and info always invalid 482 case lir_leal: // input and result always valid, info always invalid 483 case lir_monaddr: // input and result always valid, info always invalid 484 case lir_null_check: // input and info always valid, result always invalid 485 case lir_move: // input and result always valid, may have info 486 { 487 assert(op->as_Op1() != NULL, "must be"); 488 LIR_Op1* op1 = (LIR_Op1*)op; 489 490 if (op1->_info) do_info(op1->_info); 491 if (op1->_opr->is_valid()) do_input(op1->_opr); 492 if (op1->_result->is_valid()) do_output(op1->_result); 493 494 break; 495 } 496 497 case lir_return: 498 { 499 assert(op->as_OpReturn() != NULL, "must be"); 500 LIR_OpReturn* op_ret = (LIR_OpReturn*)op; 501 502 if (op_ret->_info) do_info(op_ret->_info); 503 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr); 504 if (op_ret->_result->is_valid()) do_output(op_ret->_result); 505 if (op_ret->stub() != NULL) do_stub(op_ret->stub()); 506 507 break; 508 } 509 510 case lir_safepoint: 511 { 512 assert(op->as_Op1() != NULL, "must be"); 513 LIR_Op1* op1 = (LIR_Op1*)op; 514 515 assert(op1->_info != NULL, ""); do_info(op1->_info); 516 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register 517 assert(op1->_result->is_illegal(), "safepoint does not produce value"); 518 519 break; 520 } 521 522 // LIR_OpConvert; 523 case lir_convert: // input and result always valid, info always invalid 524 { 525 assert(op->as_OpConvert() != NULL, "must be"); 526 LIR_OpConvert* opConvert = (LIR_OpConvert*)op; 527 528 assert(opConvert->_info == NULL, "must be"); 529 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr); 530 if (opConvert->_result->is_valid()) do_output(opConvert->_result); 531 do_stub(opConvert->_stub); 532 533 break; 534 } 535 536 // LIR_OpBranch; 537 case lir_branch: // may have info, input and result register always invalid 538 case lir_cond_float_branch: // may have info, input and result register always invalid 539 { 540 assert(op->as_OpBranch() != NULL, "must be"); 541 LIR_OpBranch* opBranch = (LIR_OpBranch*)op; 542 543 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() && 544 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() && 545 opBranch->_tmp5->is_illegal(), "not used"); 546 547 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1); 548 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2); 549 550 if (opBranch->_info != NULL) do_info(opBranch->_info); 551 assert(opBranch->_result->is_illegal(), "not used"); 552 if (opBranch->_stub != NULL) opBranch->stub()->visit(this); 553 554 break; 555 } 556 557 558 // LIR_OpAllocObj 559 case lir_alloc_object: 560 { 561 assert(op->as_OpAllocObj() != NULL, "must be"); 562 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op; 563 564 if (opAllocObj->_info) do_info(opAllocObj->_info); 565 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr); 566 do_temp(opAllocObj->_opr); 567 } 568 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1); 569 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2); 570 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3); 571 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4); 572 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result); 573 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub); 574 break; 575 } 576 577 578 // LIR_OpRoundFP; 579 case lir_roundfp: { 580 assert(op->as_OpRoundFP() != NULL, "must be"); 581 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op; 582 583 assert(op->_info == NULL, "info not used by this instruction"); 584 assert(opRoundFP->_tmp->is_illegal(), "not used"); 585 do_input(opRoundFP->_opr); 586 do_output(opRoundFP->_result); 587 588 break; 589 } 590 591 592 // LIR_Op2 593 case lir_cmp: 594 case lir_cmp_l2i: 595 case lir_ucmp_fd2i: 596 case lir_cmp_fd2i: 597 case lir_add: 598 case lir_sub: 599 case lir_rem: 600 case lir_sqrt: 601 case lir_abs: 602 case lir_neg: 603 case lir_logic_and: 604 case lir_logic_or: 605 case lir_logic_xor: 606 case lir_shl: 607 case lir_shr: 608 case lir_ushr: 609 case lir_xadd: 610 case lir_xchg: 611 case lir_assert: 612 { 613 assert(op->as_Op2() != NULL, "must be"); 614 LIR_Op2* op2 = (LIR_Op2*)op; 615 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 616 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 617 618 if (op2->_info) do_info(op2->_info); 619 if (op2->_opr1->is_valid()) do_input(op2->_opr1); 620 if (op2->_opr2->is_valid()) do_input(op2->_opr2); 621 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1); 622 if (op2->_result->is_valid()) do_output(op2->_result); 623 if (op->code() == lir_xchg || op->code() == lir_xadd) { 624 // on ARM and PPC, return value is loaded first so could 625 // destroy inputs. On other platforms that implement those 626 // (x86, sparc), the extra constrainsts are harmless. 627 if (op2->_opr1->is_valid()) do_temp(op2->_opr1); 628 if (op2->_opr2->is_valid()) do_temp(op2->_opr2); 629 } 630 631 break; 632 } 633 634 // special handling for cmove: right input operand must not be equal 635 // to the result operand, otherwise the backend fails 636 case lir_cmove: 637 { 638 assert(op->as_Op4() != NULL, "must be"); 639 LIR_Op4* op4 = (LIR_Op4*)op; 640 641 assert(op4->_info == NULL && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() && 642 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used"); 643 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used"); 644 645 do_input(op4->_opr1); 646 do_input(op4->_opr2); 647 if (op4->_opr3->is_valid()) do_input(op4->_opr3); 648 if (op4->_opr4->is_valid()) do_input(op4->_opr4); 649 do_temp(op4->_opr2); 650 do_output(op4->_result); 651 652 break; 653 } 654 655 // vspecial handling for strict operations: register input operands 656 // as temp to guarantee that they do not overlap with other 657 // registers 658 case lir_mul: 659 case lir_div: 660 { 661 assert(op->as_Op2() != NULL, "must be"); 662 LIR_Op2* op2 = (LIR_Op2*)op; 663 664 assert(op2->_info == NULL, "not used"); 665 assert(op2->_opr1->is_valid(), "used"); 666 assert(op2->_opr2->is_valid(), "used"); 667 assert(op2->_result->is_valid(), "used"); 668 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 669 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 670 671 do_input(op2->_opr1); do_temp(op2->_opr1); 672 do_input(op2->_opr2); do_temp(op2->_opr2); 673 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1); 674 do_output(op2->_result); 675 676 break; 677 } 678 679 case lir_throw: { 680 assert(op->as_Op2() != NULL, "must be"); 681 LIR_Op2* op2 = (LIR_Op2*)op; 682 683 if (op2->_info) do_info(op2->_info); 684 if (op2->_opr1->is_valid()) do_temp(op2->_opr1); 685 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter 686 assert(op2->_result->is_illegal(), "no result"); 687 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 688 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 689 690 break; 691 } 692 693 case lir_unwind: { 694 assert(op->as_Op1() != NULL, "must be"); 695 LIR_Op1* op1 = (LIR_Op1*)op; 696 697 assert(op1->_info == NULL, "no info"); 698 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr); 699 assert(op1->_result->is_illegal(), "no result"); 700 701 break; 702 } 703 704 // LIR_Op3 705 case lir_idiv: 706 case lir_irem: { 707 assert(op->as_Op3() != NULL, "must be"); 708 LIR_Op3* op3= (LIR_Op3*)op; 709 710 if (op3->_info) do_info(op3->_info); 711 if (op3->_opr1->is_valid()) do_input(op3->_opr1); 712 713 // second operand is input and temp, so ensure that second operand 714 // and third operand get not the same register 715 if (op3->_opr2->is_valid()) do_input(op3->_opr2); 716 if (op3->_opr2->is_valid()) do_temp(op3->_opr2); 717 if (op3->_opr3->is_valid()) do_temp(op3->_opr3); 718 719 if (op3->_result->is_valid()) do_output(op3->_result); 720 721 break; 722 } 723 724 case lir_fmad: 725 case lir_fmaf: { 726 assert(op->as_Op3() != NULL, "must be"); 727 LIR_Op3* op3= (LIR_Op3*)op; 728 assert(op3->_info == NULL, "no info"); 729 do_input(op3->_opr1); 730 do_input(op3->_opr2); 731 do_input(op3->_opr3); 732 do_output(op3->_result); 733 break; 734 } 735 736 // LIR_OpJavaCall 737 case lir_static_call: 738 case lir_optvirtual_call: 739 case lir_icvirtual_call: 740 case lir_dynamic_call: { 741 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall(); 742 assert(opJavaCall != NULL, "must be"); 743 744 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver); 745 746 // only visit register parameters 747 int n = opJavaCall->_arguments->length(); 748 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) { 749 if (!opJavaCall->_arguments->at(i)->is_pointer()) { 750 do_input(*opJavaCall->_arguments->adr_at(i)); 751 } 752 } 753 754 if (opJavaCall->_info) do_info(opJavaCall->_info); 755 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr && 756 opJavaCall->is_method_handle_invoke()) { 757 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr(); 758 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr); 759 } 760 do_call(); 761 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result); 762 763 break; 764 } 765 766 767 // LIR_OpRTCall 768 case lir_rtcall: { 769 assert(op->as_OpRTCall() != NULL, "must be"); 770 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op; 771 772 // only visit register parameters 773 int n = opRTCall->_arguments->length(); 774 for (int i = 0; i < n; i++) { 775 if (!opRTCall->_arguments->at(i)->is_pointer()) { 776 do_input(*opRTCall->_arguments->adr_at(i)); 777 } 778 } 779 if (opRTCall->_info) do_info(opRTCall->_info); 780 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp); 781 do_call(); 782 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result); 783 784 break; 785 } 786 787 788 // LIR_OpArrayCopy 789 case lir_arraycopy: { 790 assert(op->as_OpArrayCopy() != NULL, "must be"); 791 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op; 792 793 assert(opArrayCopy->_result->is_illegal(), "unused"); 794 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src); 795 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos); 796 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst); 797 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos); 798 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length); 799 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp); 800 if (opArrayCopy->_info) do_info(opArrayCopy->_info); 801 802 // the implementation of arraycopy always has a call into the runtime 803 do_call(); 804 805 break; 806 } 807 808 809 // LIR_OpUpdateCRC32 810 case lir_updatecrc32: { 811 assert(op->as_OpUpdateCRC32() != NULL, "must be"); 812 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op; 813 814 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc); 815 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val); 816 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result); 817 assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32"); 818 819 break; 820 } 821 822 823 // LIR_OpLock 824 case lir_lock: 825 case lir_unlock: { 826 assert(op->as_OpLock() != NULL, "must be"); 827 LIR_OpLock* opLock = (LIR_OpLock*)op; 828 829 if (opLock->_info) do_info(opLock->_info); 830 831 // TODO: check if these operands really have to be temp 832 // (or if input is sufficient). This may have influence on the oop map! 833 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock); 834 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr); 835 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj); 836 837 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch); 838 assert(opLock->_result->is_illegal(), "unused"); 839 840 do_stub(opLock->_stub); 841 do_stub(opLock->_throw_imse_stub); 842 843 break; 844 } 845 846 847 // LIR_OpDelay 848 case lir_delay_slot: { 849 assert(op->as_OpDelay() != NULL, "must be"); 850 LIR_OpDelay* opDelay = (LIR_OpDelay*)op; 851 852 visit(opDelay->delay_op()); 853 break; 854 } 855 856 // LIR_OpTypeCheck 857 case lir_instanceof: 858 case lir_checkcast: 859 case lir_store_check: { 860 assert(op->as_OpTypeCheck() != NULL, "must be"); 861 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op; 862 863 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception); 864 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch); 865 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object); 866 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) { 867 do_temp(opTypeCheck->_object); 868 } 869 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array); 870 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1); 871 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2); 872 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3); 873 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result); 874 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub); 875 break; 876 } 877 878 // LIR_OpFlattenedArrayCheck 879 case lir_flattened_array_check: { 880 assert(op->as_OpFlattenedArrayCheck() != NULL, "must be"); 881 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op; 882 883 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array); 884 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value); 885 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp); 886 887 do_stub(opFlattenedArrayCheck->_stub); 888 889 break; 890 } 891 892 // LIR_OpNullFreeArrayCheck 893 case lir_null_free_array_check: { 894 assert(op->as_OpNullFreeArrayCheck() != NULL, "must be"); 895 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op; 896 897 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array); 898 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp); 899 break; 900 } 901 902 // LIR_OpSubstitutabilityCheck 903 case lir_substitutability_check: { 904 assert(op->as_OpSubstitutabilityCheck() != NULL, "must be"); 905 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op; 906 do_input(opSubstitutabilityCheck->_left); 907 do_temp (opSubstitutabilityCheck->_left); 908 do_input(opSubstitutabilityCheck->_right); 909 do_temp (opSubstitutabilityCheck->_right); 910 do_input(opSubstitutabilityCheck->_equal_result); 911 do_temp (opSubstitutabilityCheck->_equal_result); 912 do_input(opSubstitutabilityCheck->_not_equal_result); 913 do_temp (opSubstitutabilityCheck->_not_equal_result); 914 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1); 915 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2); 916 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op); 917 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op); 918 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result); 919 920 do_info(opSubstitutabilityCheck->_info); 921 do_stub(opSubstitutabilityCheck->_stub); 922 break; 923 } 924 925 // LIR_OpCompareAndSwap 926 case lir_cas_long: 927 case lir_cas_obj: 928 case lir_cas_int: { 929 assert(op->as_OpCompareAndSwap() != NULL, "must be"); 930 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op; 931 932 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info); 933 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr); 934 do_temp(opCmpAndSwap->_addr); 935 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value); 936 do_temp(opCmpAndSwap->_cmp_value); 937 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value); 938 do_temp(opCmpAndSwap->_new_value); 939 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1); 940 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2); 941 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result); 942 943 break; 944 } 945 946 947 // LIR_OpAllocArray; 948 case lir_alloc_array: { 949 assert(op->as_OpAllocArray() != NULL, "must be"); 950 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op; 951 952 if (opAllocArray->_info) do_info(opAllocArray->_info); 953 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass); 954 do_temp(opAllocArray->_klass); 955 } 956 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len); 957 do_temp(opAllocArray->_len); 958 } 959 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1); 960 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2); 961 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3); 962 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4); 963 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result); 964 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub); 965 break; 966 } 967 968 // LIR_OpLoadKlass 969 case lir_load_klass: 970 { 971 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass(); 972 assert(opLoadKlass != NULL, "must be"); 973 974 do_input(opLoadKlass->_obj); 975 do_output(opLoadKlass->_result); 976 if (opLoadKlass->_info) do_info(opLoadKlass->_info); 977 break; 978 } 979 980 981 // LIR_OpProfileCall: 982 case lir_profile_call: { 983 assert(op->as_OpProfileCall() != NULL, "must be"); 984 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op; 985 986 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv); 987 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo); 988 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1); 989 break; 990 } 991 992 // LIR_OpProfileType: 993 case lir_profile_type: { 994 assert(op->as_OpProfileType() != NULL, "must be"); 995 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op; 996 997 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp); 998 do_input(opProfileType->_obj); 999 do_temp(opProfileType->_tmp); 1000 break; 1001 } 1002 1003 // LIR_OpProfileInlineType: 1004 case lir_profile_inline_type: { 1005 assert(op->as_OpProfileInlineType() != NULL, "must be"); 1006 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op; 1007 1008 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp); 1009 do_input(opProfileInlineType->_obj); 1010 do_temp(opProfileInlineType->_tmp); 1011 break; 1012 } 1013 default: 1014 op->visit(this); 1015 } 1016 } 1017 1018 void LIR_Op::visit(LIR_OpVisitState* state) { 1019 ShouldNotReachHere(); 1020 } 1021 1022 void LIR_OpVisitState::do_stub(CodeStub* stub) { 1023 if (stub != NULL) { 1024 stub->visit(this); 1025 } 1026 } 1027 1028 XHandlers* LIR_OpVisitState::all_xhandler() { 1029 XHandlers* result = NULL; 1030 1031 int i; 1032 for (i = 0; i < info_count(); i++) { 1033 if (info_at(i)->exception_handlers() != NULL) { 1034 result = info_at(i)->exception_handlers(); 1035 break; 1036 } 1037 } 1038 1039 #ifdef ASSERT 1040 for (i = 0; i < info_count(); i++) { 1041 assert(info_at(i)->exception_handlers() == NULL || 1042 info_at(i)->exception_handlers() == result, 1043 "only one xhandler list allowed per LIR-operation"); 1044 } 1045 #endif 1046 1047 if (result != NULL) { 1048 return result; 1049 } else { 1050 return new XHandlers(); 1051 } 1052 1053 return result; 1054 } 1055 1056 1057 #ifdef ASSERT 1058 bool LIR_OpVisitState::no_operands(LIR_Op* op) { 1059 visit(op); 1060 1061 return opr_count(inputMode) == 0 && 1062 opr_count(outputMode) == 0 && 1063 opr_count(tempMode) == 0 && 1064 info_count() == 0 && 1065 !has_call() && 1066 !has_slow_case(); 1067 } 1068 #endif 1069 1070 // LIR_OpReturn 1071 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) : 1072 LIR_Op1(lir_return, opr, (CodeEmitInfo*)NULL /* info */), 1073 _stub(NULL) { 1074 if (VM_Version::supports_stack_watermark_barrier()) { 1075 _stub = new C1SafepointPollStub(); 1076 } 1077 } 1078 1079 //--------------------------------------------------- 1080 1081 1082 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) { 1083 masm->emit_call(this); 1084 } 1085 1086 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const { 1087 ciType* return_type = method()->return_type(); 1088 if (InlineTypeReturnedAsFields) { 1089 if (return_type->is_inlinetype()) { 1090 ciInlineKlass* vk = return_type->as_inline_klass(); 1091 if (vk->can_be_returned_as_fields()) { 1092 if (vk_ret != NULL) { 1093 *vk_ret = vk; 1094 } 1095 return true; 1096 } 1097 } else if (return_type->is_instance_klass() && 1098 (method()->is_method_handle_intrinsic() || 1099 (!return_type->is_loaded() && !method()->holder()->is_loaded()))) { 1100 // An inline type might be returned from the call but we don't know its type. 1101 // This can happen with method handle intrinsics or when both the return type 1102 // and the method holder are unloaded (and therefore the preload logic did not 1103 // get a chance to load the return type). If an inline type is returned, we 1104 // either get an oop to a buffer and nothing needs to be done or one of the 1105 // values being returned is the klass of the inline type (RAX on x64, with LSB 1106 // set to 1) and we need to allocate an inline type instance of that type and 1107 // initialize it with other values being returned (in other registers). 1108 return true; 1109 } 1110 } 1111 return false; 1112 } 1113 1114 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) { 1115 masm->emit_rtcall(this); 1116 } 1117 1118 void LIR_OpLabel::emit_code(LIR_Assembler* masm) { 1119 masm->emit_opLabel(this); 1120 } 1121 1122 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) { 1123 masm->emit_arraycopy(this); 1124 masm->append_code_stub(stub()); 1125 } 1126 1127 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) { 1128 masm->emit_updatecrc32(this); 1129 } 1130 1131 void LIR_Op0::emit_code(LIR_Assembler* masm) { 1132 masm->emit_op0(this); 1133 } 1134 1135 void LIR_Op1::emit_code(LIR_Assembler* masm) { 1136 masm->emit_op1(this); 1137 } 1138 1139 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) { 1140 masm->emit_alloc_obj(this); 1141 masm->append_code_stub(stub()); 1142 } 1143 1144 void LIR_OpBranch::emit_code(LIR_Assembler* masm) { 1145 masm->emit_opBranch(this); 1146 if (stub()) { 1147 masm->append_code_stub(stub()); 1148 } 1149 } 1150 1151 void LIR_OpConvert::emit_code(LIR_Assembler* masm) { 1152 masm->emit_opConvert(this); 1153 if (stub() != NULL) { 1154 masm->append_code_stub(stub()); 1155 } 1156 } 1157 1158 void LIR_Op2::emit_code(LIR_Assembler* masm) { 1159 masm->emit_op2(this); 1160 } 1161 1162 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) { 1163 masm->emit_alloc_array(this); 1164 masm->append_code_stub(stub()); 1165 } 1166 1167 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) { 1168 masm->emit_opTypeCheck(this); 1169 if (stub()) { 1170 masm->append_code_stub(stub()); 1171 } 1172 } 1173 1174 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) { 1175 masm->emit_opFlattenedArrayCheck(this); 1176 if (stub() != NULL) { 1177 masm->append_code_stub(stub()); 1178 } 1179 } 1180 1181 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) { 1182 masm->emit_opNullFreeArrayCheck(this); 1183 } 1184 1185 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) { 1186 masm->emit_opSubstitutabilityCheck(this); 1187 if (stub() != NULL) { 1188 masm->append_code_stub(stub()); 1189 } 1190 } 1191 1192 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) { 1193 masm->emit_compare_and_swap(this); 1194 } 1195 1196 void LIR_Op3::emit_code(LIR_Assembler* masm) { 1197 masm->emit_op3(this); 1198 } 1199 1200 void LIR_Op4::emit_code(LIR_Assembler* masm) { 1201 masm->emit_op4(this); 1202 } 1203 1204 void LIR_OpLock::emit_code(LIR_Assembler* masm) { 1205 masm->emit_lock(this); 1206 if (stub()) { 1207 masm->append_code_stub(stub()); 1208 } 1209 if (throw_imse_stub()) { 1210 masm->append_code_stub(throw_imse_stub()); 1211 } 1212 } 1213 1214 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) { 1215 masm->emit_load_klass(this); 1216 } 1217 1218 #ifdef ASSERT 1219 void LIR_OpAssert::emit_code(LIR_Assembler* masm) { 1220 masm->emit_assert(this); 1221 } 1222 #endif 1223 1224 void LIR_OpDelay::emit_code(LIR_Assembler* masm) { 1225 masm->emit_delay(this); 1226 } 1227 1228 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) { 1229 masm->emit_profile_call(this); 1230 } 1231 1232 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) { 1233 masm->emit_profile_type(this); 1234 } 1235 1236 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) { 1237 masm->emit_profile_inline_type(this); 1238 } 1239 1240 // LIR_List 1241 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block) 1242 : _operations(8) 1243 , _compilation(compilation) 1244 #ifndef PRODUCT 1245 , _block(block) 1246 #endif 1247 #ifdef ASSERT 1248 , _file(NULL) 1249 , _line(0) 1250 #endif 1251 #ifdef RISCV 1252 , _cmp_opr1(LIR_OprFact::illegalOpr) 1253 , _cmp_opr2(LIR_OprFact::illegalOpr) 1254 #endif 1255 { } 1256 1257 1258 #ifdef ASSERT 1259 void LIR_List::set_file_and_line(const char * file, int line) { 1260 const char * f = strrchr(file, '/'); 1261 if (f == NULL) f = strrchr(file, '\\'); 1262 if (f == NULL) { 1263 f = file; 1264 } else { 1265 f++; 1266 } 1267 _file = f; 1268 _line = line; 1269 } 1270 #endif 1271 1272 #ifdef RISCV 1273 void LIR_List::set_cmp_oprs(LIR_Op* op) { 1274 switch (op->code()) { 1275 case lir_cmp: 1276 _cmp_opr1 = op->as_Op2()->in_opr1(); 1277 _cmp_opr2 = op->as_Op2()->in_opr2(); 1278 break; 1279 case lir_branch: // fall through 1280 case lir_cond_float_branch: 1281 assert(op->as_OpBranch()->cond() == lir_cond_always || 1282 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr), 1283 "conditional branches must have legal operands"); 1284 if (op->as_OpBranch()->cond() != lir_cond_always) { 1285 op->as_Op2()->set_in_opr1(_cmp_opr1); 1286 op->as_Op2()->set_in_opr2(_cmp_opr2); 1287 } 1288 break; 1289 case lir_cmove: 1290 op->as_Op4()->set_in_opr3(_cmp_opr1); 1291 op->as_Op4()->set_in_opr4(_cmp_opr2); 1292 break; 1293 #if INCLUDE_ZGC 1294 case lir_zloadbarrier_test: 1295 _cmp_opr1 = FrameMap::as_opr(t1); 1296 _cmp_opr2 = LIR_OprFact::intConst(0); 1297 break; 1298 #endif 1299 default: 1300 break; 1301 } 1302 } 1303 #endif 1304 1305 void LIR_List::append(LIR_InsertionBuffer* buffer) { 1306 assert(this == buffer->lir_list(), "wrong lir list"); 1307 const int n = _operations.length(); 1308 1309 if (buffer->number_of_ops() > 0) { 1310 // increase size of instructions list 1311 _operations.at_grow(n + buffer->number_of_ops() - 1, NULL); 1312 // insert ops from buffer into instructions list 1313 int op_index = buffer->number_of_ops() - 1; 1314 int ip_index = buffer->number_of_insertion_points() - 1; 1315 int from_index = n - 1; 1316 int to_index = _operations.length() - 1; 1317 for (; ip_index >= 0; ip_index --) { 1318 int index = buffer->index_at(ip_index); 1319 // make room after insertion point 1320 while (index < from_index) { 1321 _operations.at_put(to_index --, _operations.at(from_index --)); 1322 } 1323 // insert ops from buffer 1324 for (int i = buffer->count_at(ip_index); i > 0; i --) { 1325 _operations.at_put(to_index --, buffer->op_at(op_index --)); 1326 } 1327 } 1328 } 1329 1330 buffer->finish(); 1331 } 1332 1333 1334 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) { 1335 assert(reg->type() == T_OBJECT, "bad reg"); 1336 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info)); 1337 } 1338 1339 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) { 1340 assert(reg->type() == T_METADATA, "bad reg"); 1341 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info)); 1342 } 1343 1344 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1345 append(new LIR_Op1( 1346 lir_move, 1347 LIR_OprFact::address(addr), 1348 src, 1349 addr->type(), 1350 patch_code, 1351 info)); 1352 } 1353 1354 1355 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1356 append(new LIR_Op1( 1357 lir_move, 1358 LIR_OprFact::address(address), 1359 dst, 1360 address->type(), 1361 patch_code, 1362 info, lir_move_volatile)); 1363 } 1364 1365 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1366 append(new LIR_Op1( 1367 lir_move, 1368 LIR_OprFact::address(new LIR_Address(base, offset, type)), 1369 dst, 1370 type, 1371 patch_code, 1372 info, lir_move_volatile)); 1373 } 1374 1375 1376 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1377 append(new LIR_Op1( 1378 lir_move, 1379 LIR_OprFact::intConst(v), 1380 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)), 1381 type, 1382 patch_code, 1383 info)); 1384 } 1385 1386 1387 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1388 append(new LIR_Op1( 1389 lir_move, 1390 LIR_OprFact::oopConst(o), 1391 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)), 1392 type, 1393 patch_code, 1394 info)); 1395 } 1396 1397 1398 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1399 append(new LIR_Op1( 1400 lir_move, 1401 src, 1402 LIR_OprFact::address(addr), 1403 addr->type(), 1404 patch_code, 1405 info)); 1406 } 1407 1408 1409 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1410 append(new LIR_Op1( 1411 lir_move, 1412 src, 1413 LIR_OprFact::address(addr), 1414 addr->type(), 1415 patch_code, 1416 info, 1417 lir_move_volatile)); 1418 } 1419 1420 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1421 append(new LIR_Op1( 1422 lir_move, 1423 src, 1424 LIR_OprFact::address(new LIR_Address(base, offset, type)), 1425 type, 1426 patch_code, 1427 info, lir_move_volatile)); 1428 } 1429 1430 1431 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1432 append(new LIR_Op3( 1433 lir_idiv, 1434 left, 1435 right, 1436 tmp, 1437 res, 1438 info)); 1439 } 1440 1441 1442 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1443 append(new LIR_Op3( 1444 lir_idiv, 1445 left, 1446 LIR_OprFact::intConst(right), 1447 tmp, 1448 res, 1449 info)); 1450 } 1451 1452 1453 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1454 append(new LIR_Op3( 1455 lir_irem, 1456 left, 1457 right, 1458 tmp, 1459 res, 1460 info)); 1461 } 1462 1463 1464 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1465 append(new LIR_Op3( 1466 lir_irem, 1467 left, 1468 LIR_OprFact::intConst(right), 1469 tmp, 1470 res, 1471 info)); 1472 } 1473 1474 1475 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) { 1476 append(new LIR_Op2( 1477 lir_cmp, 1478 condition, 1479 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)), 1480 LIR_OprFact::intConst(c), 1481 info)); 1482 } 1483 1484 1485 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) { 1486 append(new LIR_Op2( 1487 lir_cmp, 1488 condition, 1489 reg, 1490 LIR_OprFact::address(addr), 1491 info)); 1492 } 1493 1494 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1495 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) { 1496 append(new LIR_OpAllocObj( 1497 klass, 1498 dst, 1499 t1, 1500 t2, 1501 t3, 1502 t4, 1503 header_size, 1504 object_size, 1505 init_check, 1506 stub)); 1507 } 1508 1509 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub) { 1510 append(new LIR_OpAllocArray( 1511 klass, 1512 len, 1513 dst, 1514 t1, 1515 t2, 1516 t3, 1517 t4, 1518 type, 1519 stub)); 1520 } 1521 1522 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1523 append(new LIR_Op2( 1524 lir_shl, 1525 value, 1526 count, 1527 dst, 1528 tmp)); 1529 } 1530 1531 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1532 append(new LIR_Op2( 1533 lir_shr, 1534 value, 1535 count, 1536 dst, 1537 tmp)); 1538 } 1539 1540 1541 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1542 append(new LIR_Op2( 1543 lir_ushr, 1544 value, 1545 count, 1546 dst, 1547 tmp)); 1548 } 1549 1550 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) { 1551 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i, 1552 left, 1553 right, 1554 dst)); 1555 } 1556 1557 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub) { 1558 append(new LIR_OpLock( 1559 lir_lock, 1560 hdr, 1561 obj, 1562 lock, 1563 scratch, 1564 stub, 1565 info, 1566 throw_imse_stub)); 1567 } 1568 1569 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) { 1570 append(new LIR_OpLock( 1571 lir_unlock, 1572 hdr, 1573 obj, 1574 lock, 1575 scratch, 1576 stub, 1577 NULL)); 1578 } 1579 1580 1581 void check_LIR() { 1582 // cannot do the proper checking as PRODUCT and other modes return different results 1583 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table"); 1584 } 1585 1586 1587 1588 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 1589 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1590 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 1591 ciMethod* profiled_method, int profiled_bci, bool is_null_free) { 1592 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check 1593 // on the object. 1594 bool need_null_check = !is_null_free; 1595 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass, 1596 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub, 1597 need_null_check); 1598 if (profiled_method != NULL) { 1599 c->set_profiled_method(profiled_method); 1600 c->set_profiled_bci(profiled_bci); 1601 c->set_should_profile(true); 1602 } 1603 append(c); 1604 } 1605 1606 void LIR_List::instanceof(LIR_Opr result, LIR_Opr object, ciKlass* klass, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, CodeEmitInfo* info_for_patch, ciMethod* profiled_method, int profiled_bci) { 1607 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL); 1608 if (profiled_method != NULL) { 1609 c->set_profiled_method(profiled_method); 1610 c->set_profiled_bci(profiled_bci); 1611 c->set_should_profile(true); 1612 } 1613 append(c); 1614 } 1615 1616 1617 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, 1618 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) { 1619 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass 1620 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception); 1621 if (profiled_method != NULL) { 1622 c->set_profiled_method(profiled_method); 1623 c->set_profiled_bci(profiled_bci); 1624 c->set_should_profile(true); 1625 } 1626 append(c); 1627 } 1628 1629 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) { 1630 if (deoptimize_on_null) { 1631 // Emit an explicit null check and deoptimize if opr is null 1632 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none); 1633 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL)); 1634 branch(lir_cond_equal, deopt); 1635 } else { 1636 // Emit an implicit null check 1637 append(new LIR_Op1(lir_null_check, opr, info)); 1638 } 1639 } 1640 1641 void LIR_List::check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) { 1642 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub); 1643 append(c); 1644 } 1645 1646 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) { 1647 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp); 1648 append(c); 1649 } 1650 1651 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 1652 LIR_Opr tmp1, LIR_Opr tmp2, 1653 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 1654 CodeEmitInfo* info, CodeStub* stub) { 1655 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result, 1656 tmp1, tmp2, 1657 left_klass, right_klass, left_klass_op, right_klass_op, 1658 info, stub); 1659 append(c); 1660 } 1661 1662 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1663 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) { 1664 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result)); 1665 } 1666 1667 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1668 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) { 1669 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result)); 1670 } 1671 1672 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1673 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) { 1674 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result)); 1675 } 1676 1677 1678 #ifdef PRODUCT 1679 1680 void print_LIR(BlockList* blocks) { 1681 } 1682 1683 #else 1684 // LIR_Opr 1685 void LIR_Opr::print() const { 1686 print(tty); 1687 } 1688 1689 void LIR_Opr::print(outputStream* out) const { 1690 if (is_illegal()) { 1691 return; 1692 } 1693 1694 out->print("["); 1695 if (is_pointer()) { 1696 pointer()->print_value_on(out); 1697 } else if (is_single_stack()) { 1698 out->print("stack:%d", single_stack_ix()); 1699 } else if (is_double_stack()) { 1700 out->print("dbl_stack:%d",double_stack_ix()); 1701 } else if (is_virtual()) { 1702 out->print("R%d", vreg_number()); 1703 } else if (is_single_cpu()) { 1704 out->print("%s", as_register()->name()); 1705 } else if (is_double_cpu()) { 1706 out->print("%s", as_register_hi()->name()); 1707 out->print("%s", as_register_lo()->name()); 1708 #if defined(X86) 1709 } else if (is_single_xmm()) { 1710 out->print("%s", as_xmm_float_reg()->name()); 1711 } else if (is_double_xmm()) { 1712 out->print("%s", as_xmm_double_reg()->name()); 1713 } else if (is_single_fpu()) { 1714 out->print("fpu%d", fpu_regnr()); 1715 } else if (is_double_fpu()) { 1716 out->print("fpu%d", fpu_regnrLo()); 1717 #elif defined(AARCH64) 1718 } else if (is_single_fpu()) { 1719 out->print("fpu%d", fpu_regnr()); 1720 } else if (is_double_fpu()) { 1721 out->print("fpu%d", fpu_regnrLo()); 1722 #elif defined(ARM) 1723 } else if (is_single_fpu()) { 1724 out->print("s%d", fpu_regnr()); 1725 } else if (is_double_fpu()) { 1726 out->print("d%d", fpu_regnrLo() >> 1); 1727 #else 1728 } else if (is_single_fpu()) { 1729 out->print("%s", as_float_reg()->name()); 1730 } else if (is_double_fpu()) { 1731 out->print("%s", as_double_reg()->name()); 1732 #endif 1733 1734 } else if (is_illegal()) { 1735 out->print("-"); 1736 } else { 1737 out->print("Unknown Operand"); 1738 } 1739 if (!is_illegal()) { 1740 out->print("|%c", type_char()); 1741 } 1742 if (is_register() && is_last_use()) { 1743 out->print("(last_use)"); 1744 } 1745 out->print("]"); 1746 } 1747 1748 1749 // LIR_Address 1750 void LIR_Const::print_value_on(outputStream* out) const { 1751 switch (type()) { 1752 case T_ADDRESS:out->print("address:%d",as_jint()); break; 1753 case T_INT: out->print("int:%d", as_jint()); break; 1754 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break; 1755 case T_FLOAT: out->print("flt:%f", as_jfloat()); break; 1756 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break; 1757 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break; 1758 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break; 1759 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break; 1760 } 1761 } 1762 1763 // LIR_Address 1764 void LIR_Address::print_value_on(outputStream* out) const { 1765 out->print("Base:"); _base->print(out); 1766 if (!_index->is_illegal()) { 1767 out->print(" Index:"); _index->print(out); 1768 switch (scale()) { 1769 case times_1: break; 1770 case times_2: out->print(" * 2"); break; 1771 case times_4: out->print(" * 4"); break; 1772 case times_8: out->print(" * 8"); break; 1773 } 1774 } 1775 out->print(" Disp: " INTX_FORMAT, _disp); 1776 } 1777 1778 // debug output of block header without InstructionPrinter 1779 // (because phi functions are not necessary for LIR) 1780 static void print_block(BlockBegin* x) { 1781 // print block id 1782 BlockEnd* end = x->end(); 1783 tty->print("B%d ", x->block_id()); 1784 1785 // print flags 1786 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std "); 1787 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr "); 1788 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex "); 1789 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr "); 1790 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb "); 1791 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh "); 1792 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le "); 1793 1794 // print block bci range 1795 tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci())); 1796 1797 // print predecessors and successors 1798 if (x->number_of_preds() > 0) { 1799 tty->print("preds: "); 1800 for (int i = 0; i < x->number_of_preds(); i ++) { 1801 tty->print("B%d ", x->pred_at(i)->block_id()); 1802 } 1803 } 1804 1805 if (end != NULL && x->number_of_sux() > 0) { 1806 tty->print("sux: "); 1807 for (int i = 0; i < x->number_of_sux(); i ++) { 1808 tty->print("B%d ", x->sux_at(i)->block_id()); 1809 } 1810 } 1811 1812 // print exception handlers 1813 if (x->number_of_exception_handlers() > 0) { 1814 tty->print("xhandler: "); 1815 for (int i = 0; i < x->number_of_exception_handlers(); i++) { 1816 tty->print("B%d ", x->exception_handler_at(i)->block_id()); 1817 } 1818 } 1819 1820 tty->cr(); 1821 } 1822 1823 void print_LIR(BlockList* blocks) { 1824 tty->print_cr("LIR:"); 1825 int i; 1826 for (i = 0; i < blocks->length(); i++) { 1827 BlockBegin* bb = blocks->at(i); 1828 print_block(bb); 1829 tty->print("__id_Instruction___________________________________________"); tty->cr(); 1830 bb->lir()->print_instructions(); 1831 } 1832 } 1833 1834 void LIR_List::print_instructions() { 1835 for (int i = 0; i < _operations.length(); i++) { 1836 _operations.at(i)->print(); tty->cr(); 1837 } 1838 tty->cr(); 1839 } 1840 1841 // LIR_Ops printing routines 1842 // LIR_Op 1843 void LIR_Op::print_on(outputStream* out) const { 1844 if (id() != -1 || PrintCFGToFile) { 1845 out->print("%4d ", id()); 1846 } else { 1847 out->print(" "); 1848 } 1849 out->print("%s ", name()); 1850 print_instr(out); 1851 if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci()); 1852 #ifdef ASSERT 1853 if (Verbose && _file != NULL) { 1854 out->print(" (%s:%d)", _file, _line); 1855 } 1856 #endif 1857 } 1858 1859 const char * LIR_Op::name() const { 1860 const char* s = NULL; 1861 switch(code()) { 1862 // LIR_Op0 1863 case lir_membar: s = "membar"; break; 1864 case lir_membar_acquire: s = "membar_acquire"; break; 1865 case lir_membar_release: s = "membar_release"; break; 1866 case lir_membar_loadload: s = "membar_loadload"; break; 1867 case lir_membar_storestore: s = "membar_storestore"; break; 1868 case lir_membar_loadstore: s = "membar_loadstore"; break; 1869 case lir_membar_storeload: s = "membar_storeload"; break; 1870 case lir_label: s = "label"; break; 1871 case lir_nop: s = "nop"; break; 1872 case lir_on_spin_wait: s = "on_spin_wait"; break; 1873 case lir_std_entry: s = "std_entry"; break; 1874 case lir_osr_entry: s = "osr_entry"; break; 1875 case lir_fpop_raw: s = "fpop_raw"; break; 1876 case lir_breakpoint: s = "breakpoint"; break; 1877 case lir_get_thread: s = "get_thread"; break; 1878 case lir_check_orig_pc: s = "check_orig_pc"; break; 1879 // LIR_Op1 1880 case lir_fxch: s = "fxch"; break; 1881 case lir_fld: s = "fld"; break; 1882 case lir_push: s = "push"; break; 1883 case lir_pop: s = "pop"; break; 1884 case lir_null_check: s = "null_check"; break; 1885 case lir_return: s = "return"; break; 1886 case lir_safepoint: s = "safepoint"; break; 1887 case lir_leal: s = "leal"; break; 1888 case lir_branch: s = "branch"; break; 1889 case lir_cond_float_branch: s = "flt_cond_br"; break; 1890 case lir_move: s = "move"; break; 1891 case lir_roundfp: s = "roundfp"; break; 1892 case lir_rtcall: s = "rtcall"; break; 1893 case lir_throw: s = "throw"; break; 1894 case lir_unwind: s = "unwind"; break; 1895 case lir_convert: s = "convert"; break; 1896 case lir_alloc_object: s = "alloc_obj"; break; 1897 case lir_monaddr: s = "mon_addr"; break; 1898 // LIR_Op2 1899 case lir_cmp: s = "cmp"; break; 1900 case lir_cmp_l2i: s = "cmp_l2i"; break; 1901 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break; 1902 case lir_cmp_fd2i: s = "comp_fd2i"; break; 1903 case lir_add: s = "add"; break; 1904 case lir_sub: s = "sub"; break; 1905 case lir_mul: s = "mul"; break; 1906 case lir_div: s = "div"; break; 1907 case lir_rem: s = "rem"; break; 1908 case lir_abs: s = "abs"; break; 1909 case lir_neg: s = "neg"; break; 1910 case lir_sqrt: s = "sqrt"; break; 1911 case lir_logic_and: s = "logic_and"; break; 1912 case lir_logic_or: s = "logic_or"; break; 1913 case lir_logic_xor: s = "logic_xor"; break; 1914 case lir_shl: s = "shift_left"; break; 1915 case lir_shr: s = "shift_right"; break; 1916 case lir_ushr: s = "ushift_right"; break; 1917 case lir_alloc_array: s = "alloc_array"; break; 1918 case lir_xadd: s = "xadd"; break; 1919 case lir_xchg: s = "xchg"; break; 1920 // LIR_Op3 1921 case lir_idiv: s = "idiv"; break; 1922 case lir_irem: s = "irem"; break; 1923 case lir_fmad: s = "fmad"; break; 1924 case lir_fmaf: s = "fmaf"; break; 1925 // LIR_Op4 1926 case lir_cmove: s = "cmove"; break; 1927 // LIR_OpJavaCall 1928 case lir_static_call: s = "static"; break; 1929 case lir_optvirtual_call: s = "optvirtual"; break; 1930 case lir_icvirtual_call: s = "icvirtual"; break; 1931 case lir_dynamic_call: s = "dynamic"; break; 1932 // LIR_OpArrayCopy 1933 case lir_arraycopy: s = "arraycopy"; break; 1934 // LIR_OpUpdateCRC32 1935 case lir_updatecrc32: s = "updatecrc32"; break; 1936 // LIR_OpLock 1937 case lir_lock: s = "lock"; break; 1938 case lir_unlock: s = "unlock"; break; 1939 // LIR_OpDelay 1940 case lir_delay_slot: s = "delay"; break; 1941 // LIR_OpTypeCheck 1942 case lir_instanceof: s = "instanceof"; break; 1943 case lir_checkcast: s = "checkcast"; break; 1944 case lir_store_check: s = "store_check"; break; 1945 // LIR_OpFlattenedArrayCheck 1946 case lir_flattened_array_check: s = "flattened_array_check"; break; 1947 // LIR_OpNullFreeArrayCheck 1948 case lir_null_free_array_check: s = "null_free_array_check"; break; 1949 // LIR_OpSubstitutabilityCheck 1950 case lir_substitutability_check: s = "substitutability_check"; break; 1951 // LIR_OpCompareAndSwap 1952 case lir_cas_long: s = "cas_long"; break; 1953 case lir_cas_obj: s = "cas_obj"; break; 1954 case lir_cas_int: s = "cas_int"; break; 1955 // LIR_OpProfileCall 1956 case lir_profile_call: s = "profile_call"; break; 1957 // LIR_OpProfileType 1958 case lir_profile_type: s = "profile_type"; break; 1959 // LIR_OpProfileInlineType 1960 case lir_profile_inline_type: s = "profile_inline_type"; break; 1961 // LIR_OpAssert 1962 #ifdef ASSERT 1963 case lir_assert: s = "assert"; break; 1964 #endif 1965 case lir_none: ShouldNotReachHere();break; 1966 default: s = "illegal_op"; break; 1967 } 1968 return s; 1969 } 1970 1971 // LIR_OpJavaCall 1972 void LIR_OpJavaCall::print_instr(outputStream* out) const { 1973 out->print("call: "); 1974 out->print("[addr: " INTPTR_FORMAT "]", p2i(address())); 1975 if (receiver()->is_valid()) { 1976 out->print(" [recv: "); receiver()->print(out); out->print("]"); 1977 } 1978 if (result_opr()->is_valid()) { 1979 out->print(" [result: "); result_opr()->print(out); out->print("]"); 1980 } 1981 } 1982 1983 // LIR_OpLabel 1984 void LIR_OpLabel::print_instr(outputStream* out) const { 1985 out->print("[label:" INTPTR_FORMAT "]", p2i(_label)); 1986 } 1987 1988 // LIR_OpArrayCopy 1989 void LIR_OpArrayCopy::print_instr(outputStream* out) const { 1990 src()->print(out); out->print(" "); 1991 src_pos()->print(out); out->print(" "); 1992 dst()->print(out); out->print(" "); 1993 dst_pos()->print(out); out->print(" "); 1994 length()->print(out); out->print(" "); 1995 tmp()->print(out); out->print(" "); 1996 } 1997 1998 // LIR_OpUpdateCRC32 1999 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const { 2000 crc()->print(out); out->print(" "); 2001 val()->print(out); out->print(" "); 2002 result_opr()->print(out); out->print(" "); 2003 } 2004 2005 // LIR_OpCompareAndSwap 2006 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const { 2007 addr()->print(out); out->print(" "); 2008 cmp_value()->print(out); out->print(" "); 2009 new_value()->print(out); out->print(" "); 2010 tmp1()->print(out); out->print(" "); 2011 tmp2()->print(out); out->print(" "); 2012 2013 } 2014 2015 // LIR_Op0 2016 void LIR_Op0::print_instr(outputStream* out) const { 2017 result_opr()->print(out); 2018 } 2019 2020 // LIR_Op1 2021 const char * LIR_Op1::name() const { 2022 if (code() == lir_move) { 2023 switch (move_kind()) { 2024 case lir_move_normal: 2025 return "move"; 2026 case lir_move_volatile: 2027 return "volatile_move"; 2028 case lir_move_wide: 2029 return "wide_move"; 2030 default: 2031 ShouldNotReachHere(); 2032 return "illegal_op"; 2033 } 2034 } else { 2035 return LIR_Op::name(); 2036 } 2037 } 2038 2039 2040 void LIR_Op1::print_instr(outputStream* out) const { 2041 _opr->print(out); out->print(" "); 2042 result_opr()->print(out); out->print(" "); 2043 print_patch_code(out, patch_code()); 2044 } 2045 2046 2047 // LIR_Op1 2048 void LIR_OpRTCall::print_instr(outputStream* out) const { 2049 intx a = (intx)addr(); 2050 out->print("%s", Runtime1::name_for_address(addr())); 2051 out->print(" "); 2052 tmp()->print(out); 2053 } 2054 2055 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) { 2056 switch(code) { 2057 case lir_patch_none: break; 2058 case lir_patch_low: out->print("[patch_low]"); break; 2059 case lir_patch_high: out->print("[patch_high]"); break; 2060 case lir_patch_normal: out->print("[patch_normal]"); break; 2061 default: ShouldNotReachHere(); 2062 } 2063 } 2064 2065 // LIR_OpBranch 2066 void LIR_OpBranch::print_instr(outputStream* out) const { 2067 print_condition(out, cond()); out->print(" "); 2068 in_opr1()->print(out); out->print(" "); 2069 in_opr2()->print(out); out->print(" "); 2070 if (block() != NULL) { 2071 out->print("[B%d] ", block()->block_id()); 2072 } else if (stub() != NULL) { 2073 out->print("["); 2074 stub()->print_name(out); 2075 out->print(": " INTPTR_FORMAT "]", p2i(stub())); 2076 if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci()); 2077 } else { 2078 out->print("[label:" INTPTR_FORMAT "] ", p2i(label())); 2079 } 2080 if (ublock() != NULL) { 2081 out->print("unordered: [B%d] ", ublock()->block_id()); 2082 } 2083 } 2084 2085 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) { 2086 switch(cond) { 2087 case lir_cond_equal: out->print("[EQ]"); break; 2088 case lir_cond_notEqual: out->print("[NE]"); break; 2089 case lir_cond_less: out->print("[LT]"); break; 2090 case lir_cond_lessEqual: out->print("[LE]"); break; 2091 case lir_cond_greaterEqual: out->print("[GE]"); break; 2092 case lir_cond_greater: out->print("[GT]"); break; 2093 case lir_cond_belowEqual: out->print("[BE]"); break; 2094 case lir_cond_aboveEqual: out->print("[AE]"); break; 2095 case lir_cond_always: out->print("[AL]"); break; 2096 default: out->print("[%d]",cond); break; 2097 } 2098 } 2099 2100 // LIR_OpConvert 2101 void LIR_OpConvert::print_instr(outputStream* out) const { 2102 print_bytecode(out, bytecode()); 2103 in_opr()->print(out); out->print(" "); 2104 result_opr()->print(out); out->print(" "); 2105 } 2106 2107 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) { 2108 switch(code) { 2109 case Bytecodes::_d2f: out->print("[d2f] "); break; 2110 case Bytecodes::_d2i: out->print("[d2i] "); break; 2111 case Bytecodes::_d2l: out->print("[d2l] "); break; 2112 case Bytecodes::_f2d: out->print("[f2d] "); break; 2113 case Bytecodes::_f2i: out->print("[f2i] "); break; 2114 case Bytecodes::_f2l: out->print("[f2l] "); break; 2115 case Bytecodes::_i2b: out->print("[i2b] "); break; 2116 case Bytecodes::_i2c: out->print("[i2c] "); break; 2117 case Bytecodes::_i2d: out->print("[i2d] "); break; 2118 case Bytecodes::_i2f: out->print("[i2f] "); break; 2119 case Bytecodes::_i2l: out->print("[i2l] "); break; 2120 case Bytecodes::_i2s: out->print("[i2s] "); break; 2121 case Bytecodes::_l2i: out->print("[l2i] "); break; 2122 case Bytecodes::_l2f: out->print("[l2f] "); break; 2123 case Bytecodes::_l2d: out->print("[l2d] "); break; 2124 default: 2125 out->print("[?%d]",code); 2126 break; 2127 } 2128 } 2129 2130 void LIR_OpAllocObj::print_instr(outputStream* out) const { 2131 klass()->print(out); out->print(" "); 2132 obj()->print(out); out->print(" "); 2133 tmp1()->print(out); out->print(" "); 2134 tmp2()->print(out); out->print(" "); 2135 tmp3()->print(out); out->print(" "); 2136 tmp4()->print(out); out->print(" "); 2137 out->print("[hdr:%d]", header_size()); out->print(" "); 2138 out->print("[obj:%d]", object_size()); out->print(" "); 2139 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2140 } 2141 2142 void LIR_OpRoundFP::print_instr(outputStream* out) const { 2143 _opr->print(out); out->print(" "); 2144 tmp()->print(out); out->print(" "); 2145 result_opr()->print(out); out->print(" "); 2146 } 2147 2148 // LIR_Op2 2149 void LIR_Op2::print_instr(outputStream* out) const { 2150 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) { 2151 print_condition(out, condition()); out->print(" "); 2152 } 2153 in_opr1()->print(out); out->print(" "); 2154 in_opr2()->print(out); out->print(" "); 2155 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); } 2156 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); } 2157 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); } 2158 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); } 2159 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); } 2160 result_opr()->print(out); 2161 } 2162 2163 void LIR_OpAllocArray::print_instr(outputStream* out) const { 2164 klass()->print(out); out->print(" "); 2165 len()->print(out); out->print(" "); 2166 obj()->print(out); out->print(" "); 2167 tmp1()->print(out); out->print(" "); 2168 tmp2()->print(out); out->print(" "); 2169 tmp3()->print(out); out->print(" "); 2170 tmp4()->print(out); out->print(" "); 2171 out->print("[type:0x%x]", type()); out->print(" "); 2172 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2173 } 2174 2175 2176 void LIR_OpTypeCheck::print_instr(outputStream* out) const { 2177 object()->print(out); out->print(" "); 2178 if (code() == lir_store_check) { 2179 array()->print(out); out->print(" "); 2180 } 2181 if (code() != lir_store_check) { 2182 klass()->print_name_on(out); out->print(" "); 2183 if (fast_check()) out->print("fast_check "); 2184 } 2185 tmp1()->print(out); out->print(" "); 2186 tmp2()->print(out); out->print(" "); 2187 tmp3()->print(out); out->print(" "); 2188 result_opr()->print(out); out->print(" "); 2189 if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci()); 2190 } 2191 2192 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const { 2193 array()->print(out); out->print(" "); 2194 value()->print(out); out->print(" "); 2195 tmp()->print(out); out->print(" "); 2196 if (stub() != NULL) { 2197 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2198 } 2199 } 2200 2201 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const { 2202 array()->print(out); out->print(" "); 2203 tmp()->print(out); out->print(" "); 2204 } 2205 2206 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const { 2207 result_opr()->print(out); out->print(" "); 2208 left()->print(out); out->print(" "); 2209 right()->print(out); out->print(" "); 2210 equal_result()->print(out); out->print(" "); 2211 not_equal_result()->print(out); out->print(" "); 2212 tmp1()->print(out); out->print(" "); 2213 tmp2()->print(out); out->print(" "); 2214 if (left_klass() == NULL) { 2215 out->print("unknown "); 2216 } else { 2217 left_klass()->print(out); out->print(" "); 2218 } 2219 if (right_klass() == NULL) { 2220 out->print("unknown "); 2221 } else { 2222 right_klass()->print(out); out->print(" "); 2223 } 2224 left_klass_op()->print(out); out->print(" "); 2225 right_klass_op()->print(out); out->print(" "); 2226 if (stub() != NULL) { 2227 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2228 } 2229 } 2230 2231 // LIR_Op3 2232 void LIR_Op3::print_instr(outputStream* out) const { 2233 in_opr1()->print(out); out->print(" "); 2234 in_opr2()->print(out); out->print(" "); 2235 in_opr3()->print(out); out->print(" "); 2236 result_opr()->print(out); 2237 } 2238 2239 // LIR_Op4 2240 void LIR_Op4::print_instr(outputStream* out) const { 2241 print_condition(out, condition()); out->print(" "); 2242 in_opr1()->print(out); out->print(" "); 2243 in_opr2()->print(out); out->print(" "); 2244 in_opr3()->print(out); out->print(" "); 2245 in_opr4()->print(out); out->print(" "); 2246 result_opr()->print(out); 2247 } 2248 2249 void LIR_OpLock::print_instr(outputStream* out) const { 2250 hdr_opr()->print(out); out->print(" "); 2251 obj_opr()->print(out); out->print(" "); 2252 lock_opr()->print(out); out->print(" "); 2253 if (_scratch->is_valid()) { 2254 _scratch->print(out); out->print(" "); 2255 } 2256 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2257 } 2258 2259 void LIR_OpLoadKlass::print_instr(outputStream* out) const { 2260 obj()->print(out); out->print(" "); 2261 result_opr()->print(out); out->print(" "); 2262 } 2263 2264 #ifdef ASSERT 2265 void LIR_OpAssert::print_instr(outputStream* out) const { 2266 print_condition(out, condition()); out->print(" "); 2267 in_opr1()->print(out); out->print(" "); 2268 in_opr2()->print(out); out->print(", \""); 2269 out->print("%s", msg()); out->print("\""); 2270 } 2271 #endif 2272 2273 2274 void LIR_OpDelay::print_instr(outputStream* out) const { 2275 _op->print_on(out); 2276 } 2277 2278 2279 // LIR_OpProfileCall 2280 void LIR_OpProfileCall::print_instr(outputStream* out) const { 2281 profiled_method()->name()->print_symbol_on(out); 2282 out->print("."); 2283 profiled_method()->holder()->name()->print_symbol_on(out); 2284 out->print(" @ %d ", profiled_bci()); 2285 mdo()->print(out); out->print(" "); 2286 recv()->print(out); out->print(" "); 2287 tmp1()->print(out); out->print(" "); 2288 } 2289 2290 // LIR_OpProfileType 2291 void LIR_OpProfileType::print_instr(outputStream* out) const { 2292 out->print("exact = "); 2293 if (exact_klass() == NULL) { 2294 out->print("unknown"); 2295 } else { 2296 exact_klass()->print_name_on(out); 2297 } 2298 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass()); 2299 out->print(" "); 2300 mdp()->print(out); out->print(" "); 2301 obj()->print(out); out->print(" "); 2302 tmp()->print(out); out->print(" "); 2303 } 2304 2305 // LIR_OpProfileInlineType 2306 void LIR_OpProfileInlineType::print_instr(outputStream* out) const { 2307 out->print(" flag = %x ", flag()); 2308 mdp()->print(out); out->print(" "); 2309 obj()->print(out); out->print(" "); 2310 tmp()->print(out); out->print(" "); 2311 } 2312 2313 #endif // PRODUCT 2314 2315 // Implementation of LIR_InsertionBuffer 2316 2317 void LIR_InsertionBuffer::append(int index, LIR_Op* op) { 2318 assert(_index_and_count.length() % 2 == 0, "must have a count for each index"); 2319 2320 int i = number_of_insertion_points() - 1; 2321 if (i < 0 || index_at(i) < index) { 2322 append_new(index, 1); 2323 } else { 2324 assert(index_at(i) == index, "can append LIR_Ops in ascending order only"); 2325 assert(count_at(i) > 0, "check"); 2326 set_count_at(i, count_at(i) + 1); 2327 } 2328 _ops.push(op); 2329 2330 DEBUG_ONLY(verify()); 2331 } 2332 2333 #ifdef ASSERT 2334 void LIR_InsertionBuffer::verify() { 2335 int sum = 0; 2336 int prev_idx = -1; 2337 2338 for (int i = 0; i < number_of_insertion_points(); i++) { 2339 assert(prev_idx < index_at(i), "index must be ordered ascending"); 2340 sum += count_at(i); 2341 } 2342 assert(sum == number_of_ops(), "wrong total sum"); 2343 } 2344 #endif