1 /* 2 * Copyright (c) 2000, 2025, 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 "c1/c1_CodeStubs.hpp" 26 #include "c1/c1_InstructionPrinter.hpp" 27 #include "c1/c1_LIR.hpp" 28 #include "c1/c1_LIRAssembler.hpp" 29 #include "c1/c1_ValueStack.hpp" 30 #include "ci/ciInlineKlass.hpp" 31 #include "ci/ciInstance.hpp" 32 #include "runtime/safepointMechanism.inline.hpp" 33 #include "runtime/sharedRuntime.hpp" 34 #include "runtime/vm_version.hpp" 35 36 Register LIR_Opr::as_register() const { 37 return FrameMap::cpu_rnr2reg(cpu_regnr()); 38 } 39 40 Register LIR_Opr::as_register_lo() const { 41 return FrameMap::cpu_rnr2reg(cpu_regnrLo()); 42 } 43 44 Register LIR_Opr::as_register_hi() const { 45 return FrameMap::cpu_rnr2reg(cpu_regnrHi()); 46 } 47 48 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal(); 49 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr(); 50 51 LIR_Opr LIR_OprFact::value_type(ValueType* type) { 52 ValueTag tag = type->tag(); 53 switch (tag) { 54 case metaDataTag : { 55 ClassConstant* c = type->as_ClassConstant(); 56 if (c != nullptr && !c->value()->is_loaded()) { 57 return LIR_OprFact::metadataConst(nullptr); 58 } else if (c != nullptr) { 59 return LIR_OprFact::metadataConst(c->value()->constant_encoding()); 60 } else { 61 MethodConstant* m = type->as_MethodConstant(); 62 assert (m != nullptr, "not a class or a method?"); 63 return LIR_OprFact::metadataConst(m->value()->constant_encoding()); 64 } 65 } 66 case objectTag : { 67 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding()); 68 } 69 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value()); 70 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value()); 71 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value()); 72 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value()); 73 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value()); 74 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1); 75 } 76 } 77 78 79 //--------------------------------------------------- 80 81 82 LIR_Address::Scale LIR_Address::scale(BasicType type) { 83 int elem_size = type2aelembytes(type); 84 switch (elem_size) { 85 case 1: return LIR_Address::times_1; 86 case 2: return LIR_Address::times_2; 87 case 4: return LIR_Address::times_4; 88 case 8: return LIR_Address::times_8; 89 } 90 ShouldNotReachHere(); 91 return LIR_Address::times_1; 92 } 93 94 //--------------------------------------------------- 95 96 char LIR_Opr::type_char(BasicType t) { 97 switch (t) { 98 case T_ARRAY: 99 t = T_OBJECT; 100 case T_BOOLEAN: 101 case T_CHAR: 102 case T_FLOAT: 103 case T_DOUBLE: 104 case T_BYTE: 105 case T_SHORT: 106 case T_INT: 107 case T_LONG: 108 case T_OBJECT: 109 case T_ADDRESS: 110 case T_VOID: 111 return ::type2char(t); 112 case T_METADATA: 113 return 'M'; 114 case T_ILLEGAL: 115 return '?'; 116 117 default: 118 ShouldNotReachHere(); 119 return '?'; 120 } 121 } 122 123 #ifndef PRODUCT 124 void LIR_Opr::validate_type() const { 125 126 #ifdef ASSERT 127 if (!is_pointer() && !is_illegal()) { 128 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160 129 switch (as_BasicType(type_field())) { 130 case T_LONG: 131 assert((kindfield == cpu_register || kindfield == stack_value) && 132 size_field() == double_size, "must match"); 133 break; 134 case T_FLOAT: 135 // FP return values can be also in CPU registers on ARM (softfp ABI) 136 assert((kindfield == fpu_register || kindfield == stack_value 137 ARM_ONLY(|| kindfield == cpu_register) ) && 138 size_field() == single_size, "must match"); 139 break; 140 case T_DOUBLE: 141 // FP return values can be also in CPU registers on ARM (softfp ABI) 142 assert((kindfield == fpu_register || kindfield == stack_value 143 ARM_ONLY(|| kindfield == cpu_register) ) && 144 size_field() == double_size, "must match"); 145 break; 146 case T_BOOLEAN: 147 case T_CHAR: 148 case T_BYTE: 149 case T_SHORT: 150 case T_INT: 151 case T_ADDRESS: 152 case T_OBJECT: 153 case T_METADATA: 154 case T_ARRAY: 155 assert((kindfield == cpu_register || kindfield == stack_value) && 156 size_field() == single_size, "must match"); 157 break; 158 159 case T_ILLEGAL: 160 // XXX TKR also means unknown right now 161 // assert(is_illegal(), "must match"); 162 break; 163 164 default: 165 ShouldNotReachHere(); 166 } 167 } 168 #endif 169 170 } 171 #endif // PRODUCT 172 173 174 bool LIR_Opr::is_oop() const { 175 if (is_pointer()) { 176 return pointer()->is_oop_pointer(); 177 } else { 178 OprType t= type_field(); 179 assert(t != unknown_type, "not set"); 180 return t == object_type; 181 } 182 } 183 184 185 186 void LIR_Op2::verify() const { 187 #ifdef ASSERT 188 switch (code()) { 189 case lir_xchg: 190 break; 191 192 default: 193 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(), 194 "can't produce oops from arith"); 195 } 196 197 if (two_operand_lir_form) { 198 199 bool threeOperandForm = false; 200 #ifdef S390 201 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()). 202 threeOperandForm = 203 code() == lir_shl || 204 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT)); 205 #endif 206 207 switch (code()) { 208 case lir_add: 209 case lir_sub: 210 case lir_mul: 211 case lir_div: 212 case lir_rem: 213 case lir_logic_and: 214 case lir_logic_or: 215 case lir_logic_xor: 216 case lir_shl: 217 case lir_shr: 218 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match"); 219 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid"); 220 break; 221 222 // special handling for lir_ushr because of write barriers 223 case lir_ushr: 224 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant"); 225 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid"); 226 break; 227 228 default: 229 break; 230 } 231 } 232 #endif 233 } 234 235 236 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block) 237 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr) 238 , _label(block->label()) 239 , _block(block) 240 , _ublock(nullptr) 241 , _stub(nullptr) { 242 } 243 244 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) : 245 LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr) 246 , _label(stub->entry()) 247 , _block(nullptr) 248 , _ublock(nullptr) 249 , _stub(stub) { 250 } 251 252 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock) 253 : LIR_Op2(lir_cond_float_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr) 254 , _label(block->label()) 255 , _block(block) 256 , _ublock(ublock) 257 , _stub(nullptr) 258 { 259 } 260 261 void LIR_OpBranch::change_block(BlockBegin* b) { 262 assert(_block != nullptr, "must have old block"); 263 assert(_block->label() == label(), "must be equal"); 264 265 _block = b; 266 _label = b->label(); 267 } 268 269 void LIR_OpBranch::change_ublock(BlockBegin* b) { 270 assert(_ublock != nullptr, "must have old block"); 271 _ublock = b; 272 } 273 274 void LIR_OpBranch::negate_cond() { 275 switch (cond()) { 276 case lir_cond_equal: set_cond(lir_cond_notEqual); break; 277 case lir_cond_notEqual: set_cond(lir_cond_equal); break; 278 case lir_cond_less: set_cond(lir_cond_greaterEqual); break; 279 case lir_cond_lessEqual: set_cond(lir_cond_greater); break; 280 case lir_cond_greaterEqual: set_cond(lir_cond_less); break; 281 case lir_cond_greater: set_cond(lir_cond_lessEqual); break; 282 default: ShouldNotReachHere(); 283 } 284 } 285 286 287 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass, 288 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, 289 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, 290 CodeStub* stub, bool need_null_check) 291 292 : LIR_Op(code, result, nullptr) 293 , _object(object) 294 , _array(LIR_OprFact::illegalOpr) 295 , _klass(klass) 296 , _tmp1(tmp1) 297 , _tmp2(tmp2) 298 , _tmp3(tmp3) 299 , _info_for_patch(info_for_patch) 300 , _info_for_exception(info_for_exception) 301 , _stub(stub) 302 , _profiled_method(nullptr) 303 , _profiled_bci(-1) 304 , _should_profile(false) 305 , _fast_check(fast_check) 306 , _need_null_check(need_null_check) 307 { 308 if (code == lir_checkcast) { 309 assert(info_for_exception != nullptr, "checkcast throws exceptions"); 310 } else if (code == lir_instanceof) { 311 assert(info_for_exception == nullptr, "instanceof throws no exceptions"); 312 } else { 313 ShouldNotReachHere(); 314 } 315 } 316 317 318 319 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) 320 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr) 321 , _object(object) 322 , _array(array) 323 , _klass(nullptr) 324 , _tmp1(tmp1) 325 , _tmp2(tmp2) 326 , _tmp3(tmp3) 327 , _info_for_patch(nullptr) 328 , _info_for_exception(info_for_exception) 329 , _stub(nullptr) 330 , _profiled_method(nullptr) 331 , _profiled_bci(-1) 332 , _should_profile(false) 333 , _fast_check(false) 334 , _need_null_check(true) 335 { 336 if (code == lir_store_check) { 337 _stub = new ArrayStoreExceptionStub(object, info_for_exception); 338 assert(info_for_exception != nullptr, "store_check throws exceptions"); 339 } else { 340 ShouldNotReachHere(); 341 } 342 } 343 344 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) 345 : LIR_Op(lir_flat_array_check, LIR_OprFact::illegalOpr, nullptr) 346 , _array(array) 347 , _value(value) 348 , _tmp(tmp) 349 , _stub(stub) {} 350 351 352 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp) 353 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, nullptr) 354 , _array(array) 355 , _tmp(tmp) {} 356 357 358 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 359 LIR_Opr tmp1, LIR_Opr tmp2, 360 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 361 CodeEmitInfo* info, CodeStub* stub) 362 : LIR_Op(lir_substitutability_check, result, info) 363 , _left(left) 364 , _right(right) 365 , _equal_result(equal_result) 366 , _not_equal_result(not_equal_result) 367 , _tmp1(tmp1) 368 , _tmp2(tmp2) 369 , _left_klass(left_klass) 370 , _right_klass(right_klass) 371 , _left_klass_op(left_klass_op) 372 , _right_klass_op(right_klass_op) 373 , _stub(stub) {} 374 375 376 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length, 377 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info) 378 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info) 379 , _src(src) 380 , _src_pos(src_pos) 381 , _dst(dst) 382 , _dst_pos(dst_pos) 383 , _length(length) 384 , _tmp(tmp) 385 , _expected_type(expected_type) 386 , _flags(flags) { 387 #if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV64) || defined(PPC64) 388 if (expected_type != nullptr && 389 ((flags & ~LIR_OpArrayCopy::get_initial_copy_flags()) == 0)) { 390 _stub = nullptr; 391 } else { 392 _stub = new ArrayCopyStub(this); 393 } 394 #else 395 _stub = new ArrayCopyStub(this); 396 #endif 397 } 398 399 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res) 400 : LIR_Op(lir_updatecrc32, res, nullptr) 401 , _crc(crc) 402 , _val(val) { 403 } 404 405 //-------------------verify-------------------------- 406 407 void LIR_Op1::verify() const { 408 switch(code()) { 409 case lir_move: 410 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be"); 411 break; 412 case lir_null_check: 413 assert(in_opr()->is_register(), "must be"); 414 break; 415 case lir_return: 416 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be"); 417 break; 418 default: 419 break; 420 } 421 } 422 423 void LIR_OpRTCall::verify() const { 424 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function"); 425 } 426 427 //-------------------visits-------------------------- 428 429 // complete rework of LIR instruction visitor. 430 // The virtual call for each instruction type is replaced by a big 431 // switch that adds the operands for each instruction 432 433 void LIR_OpVisitState::visit(LIR_Op* op) { 434 // copy information from the LIR_Op 435 reset(); 436 set_op(op); 437 438 switch (op->code()) { 439 440 // LIR_Op0 441 case lir_breakpoint: // result and info always invalid 442 case lir_membar: // result and info always invalid 443 case lir_membar_acquire: // result and info always invalid 444 case lir_membar_release: // result and info always invalid 445 case lir_membar_loadload: // result and info always invalid 446 case lir_membar_storestore: // result and info always invalid 447 case lir_membar_loadstore: // result and info always invalid 448 case lir_membar_storeload: // result and info always invalid 449 case lir_check_orig_pc: // result and info always invalid 450 case lir_on_spin_wait: 451 { 452 assert(op->as_Op0() != nullptr, "must be"); 453 assert(op->_info == nullptr, "info not used by this instruction"); 454 assert(op->_result->is_illegal(), "not used"); 455 break; 456 } 457 458 case lir_nop: // may have info, result always invalid 459 case lir_std_entry: // may have result, info always invalid 460 case lir_osr_entry: // may have result, info always invalid 461 case lir_get_thread: // may have result, info always invalid 462 { 463 assert(op->as_Op0() != nullptr, "must be"); 464 if (op->_info != nullptr) do_info(op->_info); 465 if (op->_result->is_valid()) do_output(op->_result); 466 break; 467 } 468 469 470 // LIR_OpLabel 471 case lir_label: // result and info always invalid 472 { 473 assert(op->as_OpLabel() != nullptr, "must be"); 474 assert(op->_info == nullptr, "info not used by this instruction"); 475 assert(op->_result->is_illegal(), "not used"); 476 break; 477 } 478 479 480 // LIR_Op1 481 case lir_push: // input always valid, result and info always invalid 482 case lir_pop: // input always valid, result and info always invalid 483 case lir_leal: // input and result always valid, info always invalid 484 case lir_monaddr: // input and result always valid, info always invalid 485 case lir_null_check: // input and info always valid, result always invalid 486 case lir_move: // input and result always valid, may have info 487 case lir_sqrt: // FP Ops have no info, but input and result 488 case lir_abs: 489 case lir_neg: 490 case lir_f2hf: 491 case lir_hf2f: 492 { 493 assert(op->as_Op1() != nullptr, "must be"); 494 LIR_Op1* op1 = (LIR_Op1*)op; 495 496 if (op1->_info) do_info(op1->_info); 497 if (op1->_opr->is_valid()) do_input(op1->_opr); 498 if (op1->_tmp->is_valid()) do_temp(op1->_tmp); 499 if (op1->_result->is_valid()) do_output(op1->_result); 500 501 break; 502 } 503 504 case lir_return: 505 { 506 assert(op->as_OpReturn() != nullptr, "must be"); 507 LIR_OpReturn* op_ret = (LIR_OpReturn*)op; 508 509 if (op_ret->_info) do_info(op_ret->_info); 510 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr); 511 if (op_ret->_result->is_valid()) do_output(op_ret->_result); 512 if (op_ret->stub() != nullptr) do_stub(op_ret->stub()); 513 514 break; 515 } 516 517 case lir_safepoint: 518 { 519 assert(op->as_Op1() != nullptr, "must be"); 520 LIR_Op1* op1 = (LIR_Op1*)op; 521 522 assert(op1->_info != nullptr, ""); do_info(op1->_info); 523 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register 524 assert(op1->_tmp->is_illegal(), "not used"); 525 assert(op1->_result->is_illegal(), "safepoint does not produce value"); 526 527 break; 528 } 529 530 // LIR_OpConvert; 531 case lir_convert: // input and result always valid, info always invalid 532 { 533 assert(op->as_OpConvert() != nullptr, "must be"); 534 LIR_OpConvert* opConvert = (LIR_OpConvert*)op; 535 536 assert(opConvert->_info == nullptr, "must be"); 537 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr); 538 if (opConvert->_result->is_valid()) do_output(opConvert->_result); 539 do_stub(opConvert->_stub); 540 541 break; 542 } 543 544 // LIR_OpBranch; 545 case lir_branch: // may have info, input and result register always invalid 546 case lir_cond_float_branch: // may have info, input and result register always invalid 547 { 548 assert(op->as_OpBranch() != nullptr, "must be"); 549 LIR_OpBranch* opBranch = (LIR_OpBranch*)op; 550 551 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() && 552 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() && 553 opBranch->_tmp5->is_illegal(), "not used"); 554 555 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1); 556 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2); 557 558 if (opBranch->_info != nullptr) do_info(opBranch->_info); 559 assert(opBranch->_result->is_illegal(), "not used"); 560 if (opBranch->_stub != nullptr) opBranch->stub()->visit(this); 561 562 break; 563 } 564 565 566 // LIR_OpAllocObj 567 case lir_alloc_object: 568 { 569 assert(op->as_OpAllocObj() != nullptr, "must be"); 570 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op; 571 572 if (opAllocObj->_info) do_info(opAllocObj->_info); 573 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr); 574 do_temp(opAllocObj->_opr); 575 } 576 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1); 577 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2); 578 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3); 579 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4); 580 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result); 581 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub); 582 break; 583 } 584 585 586 // LIR_Op2 587 case lir_cmp: 588 case lir_cmp_l2i: 589 case lir_ucmp_fd2i: 590 case lir_cmp_fd2i: 591 case lir_add: 592 case lir_sub: 593 case lir_rem: 594 case lir_logic_and: 595 case lir_logic_or: 596 case lir_logic_xor: 597 case lir_shl: 598 case lir_shr: 599 case lir_ushr: 600 case lir_xadd: 601 case lir_xchg: 602 case lir_assert: 603 { 604 assert(op->as_Op2() != nullptr, "must be"); 605 LIR_Op2* op2 = (LIR_Op2*)op; 606 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 607 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 608 609 if (op2->_info) do_info(op2->_info); 610 if (op2->_opr1->is_valid()) do_input(op2->_opr1); 611 if (op2->_opr2->is_valid()) do_input(op2->_opr2); 612 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1); 613 if (op2->_result->is_valid()) do_output(op2->_result); 614 if (op->code() == lir_xchg || op->code() == lir_xadd) { 615 // on ARM and PPC, return value is loaded first so could 616 // destroy inputs. On other platforms that implement those 617 // (x86, sparc), the extra constrainsts are harmless. 618 if (op2->_opr1->is_valid()) do_temp(op2->_opr1); 619 if (op2->_opr2->is_valid()) do_temp(op2->_opr2); 620 } 621 622 break; 623 } 624 625 // special handling for cmove: right input operand must not be equal 626 // to the result operand, otherwise the backend fails 627 case lir_cmove: 628 { 629 assert(op->as_Op4() != nullptr, "must be"); 630 LIR_Op4* op4 = (LIR_Op4*)op; 631 632 assert(op4->_info == nullptr && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() && 633 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used"); 634 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used"); 635 636 do_input(op4->_opr1); 637 do_input(op4->_opr2); 638 if (op4->_opr3->is_valid()) do_input(op4->_opr3); 639 if (op4->_opr4->is_valid()) do_input(op4->_opr4); 640 do_temp(op4->_opr2); 641 do_output(op4->_result); 642 643 break; 644 } 645 646 // vspecial handling for strict operations: register input operands 647 // as temp to guarantee that they do not overlap with other 648 // registers 649 case lir_mul: 650 case lir_div: 651 { 652 assert(op->as_Op2() != nullptr, "must be"); 653 LIR_Op2* op2 = (LIR_Op2*)op; 654 655 assert(op2->_info == nullptr, "not used"); 656 assert(op2->_opr1->is_valid(), "used"); 657 assert(op2->_opr2->is_valid(), "used"); 658 assert(op2->_result->is_valid(), "used"); 659 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 660 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 661 662 do_input(op2->_opr1); do_temp(op2->_opr1); 663 do_input(op2->_opr2); do_temp(op2->_opr2); 664 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1); 665 do_output(op2->_result); 666 667 break; 668 } 669 670 case lir_throw: { 671 assert(op->as_Op2() != nullptr, "must be"); 672 LIR_Op2* op2 = (LIR_Op2*)op; 673 674 if (op2->_info) do_info(op2->_info); 675 if (op2->_opr1->is_valid()) do_temp(op2->_opr1); 676 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter 677 assert(op2->_result->is_illegal(), "no result"); 678 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() && 679 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used"); 680 681 break; 682 } 683 684 case lir_unwind: { 685 assert(op->as_Op1() != nullptr, "must be"); 686 LIR_Op1* op1 = (LIR_Op1*)op; 687 688 assert(op1->_info == nullptr, "no info"); 689 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr); 690 assert(op1->_tmp->is_illegal(), "not used"); 691 assert(op1->_result->is_illegal(), "no result"); 692 693 break; 694 } 695 696 // LIR_Op3 697 case lir_idiv: 698 case lir_irem: { 699 assert(op->as_Op3() != nullptr, "must be"); 700 LIR_Op3* op3= (LIR_Op3*)op; 701 702 if (op3->_info) do_info(op3->_info); 703 if (op3->_opr1->is_valid()) do_input(op3->_opr1); 704 705 // second operand is input and temp, so ensure that second operand 706 // and third operand get not the same register 707 if (op3->_opr2->is_valid()) do_input(op3->_opr2); 708 if (op3->_opr2->is_valid()) do_temp(op3->_opr2); 709 if (op3->_opr3->is_valid()) do_temp(op3->_opr3); 710 711 if (op3->_result->is_valid()) do_output(op3->_result); 712 713 break; 714 } 715 716 case lir_fmad: 717 case lir_fmaf: { 718 assert(op->as_Op3() != nullptr, "must be"); 719 LIR_Op3* op3= (LIR_Op3*)op; 720 assert(op3->_info == nullptr, "no info"); 721 do_input(op3->_opr1); 722 do_input(op3->_opr2); 723 do_input(op3->_opr3); 724 do_output(op3->_result); 725 break; 726 } 727 728 // LIR_OpJavaCall 729 case lir_static_call: 730 case lir_optvirtual_call: 731 case lir_icvirtual_call: 732 case lir_dynamic_call: { 733 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall(); 734 assert(opJavaCall != nullptr, "must be"); 735 736 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver); 737 738 // only visit register parameters 739 int n = opJavaCall->_arguments->length(); 740 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) { 741 if (!opJavaCall->_arguments->at(i)->is_pointer()) { 742 do_input(*opJavaCall->_arguments->adr_at(i)); 743 } 744 } 745 746 if (opJavaCall->_info) do_info(opJavaCall->_info); 747 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr && 748 opJavaCall->is_method_handle_invoke()) { 749 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr(); 750 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr); 751 } 752 do_call(); 753 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result); 754 755 break; 756 } 757 758 759 // LIR_OpRTCall 760 case lir_rtcall: { 761 assert(op->as_OpRTCall() != nullptr, "must be"); 762 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op; 763 764 // only visit register parameters 765 int n = opRTCall->_arguments->length(); 766 for (int i = 0; i < n; i++) { 767 if (!opRTCall->_arguments->at(i)->is_pointer()) { 768 do_input(*opRTCall->_arguments->adr_at(i)); 769 } 770 } 771 if (opRTCall->_info) do_info(opRTCall->_info); 772 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp); 773 do_call(); 774 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result); 775 776 break; 777 } 778 779 780 // LIR_OpArrayCopy 781 case lir_arraycopy: { 782 assert(op->as_OpArrayCopy() != nullptr, "must be"); 783 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op; 784 785 assert(opArrayCopy->_result->is_illegal(), "unused"); 786 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src); 787 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos); 788 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst); 789 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos); 790 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length); 791 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp); 792 if (opArrayCopy->_info) do_info(opArrayCopy->_info); 793 794 // the implementation of arraycopy always has a call into the runtime 795 do_call(); 796 797 break; 798 } 799 800 801 // LIR_OpUpdateCRC32 802 case lir_updatecrc32: { 803 assert(op->as_OpUpdateCRC32() != nullptr, "must be"); 804 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op; 805 806 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc); 807 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val); 808 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result); 809 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32"); 810 811 break; 812 } 813 814 815 // LIR_OpLock 816 case lir_lock: 817 case lir_unlock: { 818 assert(op->as_OpLock() != nullptr, "must be"); 819 LIR_OpLock* opLock = (LIR_OpLock*)op; 820 821 if (opLock->_info) do_info(opLock->_info); 822 823 // TODO: check if these operands really have to be temp 824 // (or if input is sufficient). This may have influence on the oop map! 825 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock); 826 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr); 827 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj); 828 829 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch); 830 assert(opLock->_result->is_illegal(), "unused"); 831 832 do_stub(opLock->_stub); 833 do_stub(opLock->_throw_ie_stub); 834 835 break; 836 } 837 838 839 // LIR_OpTypeCheck 840 case lir_instanceof: 841 case lir_checkcast: 842 case lir_store_check: { 843 assert(op->as_OpTypeCheck() != nullptr, "must be"); 844 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op; 845 846 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception); 847 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch); 848 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object); 849 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) { 850 do_temp(opTypeCheck->_object); 851 } 852 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array); 853 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1); 854 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2); 855 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3); 856 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result); 857 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub); 858 break; 859 } 860 861 // LIR_OpFlattenedArrayCheck 862 case lir_flat_array_check: { 863 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be"); 864 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op; 865 866 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array); 867 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value); 868 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp); 869 870 do_stub(opFlattenedArrayCheck->_stub); 871 872 break; 873 } 874 875 // LIR_OpNullFreeArrayCheck 876 case lir_null_free_array_check: { 877 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be"); 878 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op; 879 880 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array); 881 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp); 882 break; 883 } 884 885 // LIR_OpSubstitutabilityCheck 886 case lir_substitutability_check: { 887 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be"); 888 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op; 889 do_input(opSubstitutabilityCheck->_left); 890 do_temp (opSubstitutabilityCheck->_left); 891 do_input(opSubstitutabilityCheck->_right); 892 do_temp (opSubstitutabilityCheck->_right); 893 do_input(opSubstitutabilityCheck->_equal_result); 894 do_temp (opSubstitutabilityCheck->_equal_result); 895 do_input(opSubstitutabilityCheck->_not_equal_result); 896 do_temp (opSubstitutabilityCheck->_not_equal_result); 897 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1); 898 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2); 899 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op); 900 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op); 901 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result); 902 903 do_info(opSubstitutabilityCheck->_info); 904 do_stub(opSubstitutabilityCheck->_stub); 905 break; 906 } 907 908 // LIR_OpCompareAndSwap 909 case lir_cas_long: 910 case lir_cas_obj: 911 case lir_cas_int: { 912 assert(op->as_OpCompareAndSwap() != nullptr, "must be"); 913 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op; 914 915 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info); 916 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr); 917 do_temp(opCmpAndSwap->_addr); 918 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value); 919 do_temp(opCmpAndSwap->_cmp_value); 920 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value); 921 do_temp(opCmpAndSwap->_new_value); 922 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1); 923 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2); 924 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result); 925 926 break; 927 } 928 929 930 // LIR_OpAllocArray; 931 case lir_alloc_array: { 932 assert(op->as_OpAllocArray() != nullptr, "must be"); 933 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op; 934 935 if (opAllocArray->_info) do_info(opAllocArray->_info); 936 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass); 937 do_temp(opAllocArray->_klass); 938 } 939 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len); 940 do_temp(opAllocArray->_len); 941 } 942 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1); 943 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2); 944 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3); 945 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4); 946 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result); 947 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub); 948 break; 949 } 950 951 // LIR_OpLoadKlass 952 case lir_load_klass: 953 { 954 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass(); 955 assert(opLoadKlass != nullptr, "must be"); 956 957 do_input(opLoadKlass->_obj); 958 do_output(opLoadKlass->_result); 959 if (opLoadKlass->_info) do_info(opLoadKlass->_info); 960 break; 961 } 962 963 964 // LIR_OpProfileCall: 965 case lir_profile_call: { 966 assert(op->as_OpProfileCall() != nullptr, "must be"); 967 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op; 968 969 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv); 970 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo); 971 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1); 972 break; 973 } 974 975 // LIR_OpProfileType: 976 case lir_profile_type: { 977 assert(op->as_OpProfileType() != nullptr, "must be"); 978 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op; 979 980 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp); 981 do_input(opProfileType->_obj); 982 do_temp(opProfileType->_tmp); 983 break; 984 } 985 986 // LIR_OpProfileInlineType: 987 case lir_profile_inline_type: { 988 assert(op->as_OpProfileInlineType() != nullptr, "must be"); 989 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op; 990 991 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp); 992 do_input(opProfileInlineType->_obj); 993 do_temp(opProfileInlineType->_tmp); 994 break; 995 } 996 default: 997 op->visit(this); 998 } 999 } 1000 1001 void LIR_Op::visit(LIR_OpVisitState* state) { 1002 ShouldNotReachHere(); 1003 } 1004 1005 void LIR_OpVisitState::do_stub(CodeStub* stub) { 1006 if (stub != nullptr) { 1007 stub->visit(this); 1008 } 1009 } 1010 1011 XHandlers* LIR_OpVisitState::all_xhandler() { 1012 XHandlers* result = nullptr; 1013 1014 int i; 1015 for (i = 0; i < info_count(); i++) { 1016 if (info_at(i)->exception_handlers() != nullptr) { 1017 result = info_at(i)->exception_handlers(); 1018 break; 1019 } 1020 } 1021 1022 #ifdef ASSERT 1023 for (i = 0; i < info_count(); i++) { 1024 assert(info_at(i)->exception_handlers() == nullptr || 1025 info_at(i)->exception_handlers() == result, 1026 "only one xhandler list allowed per LIR-operation"); 1027 } 1028 #endif 1029 1030 if (result != nullptr) { 1031 return result; 1032 } else { 1033 return new XHandlers(); 1034 } 1035 1036 return result; 1037 } 1038 1039 1040 #ifdef ASSERT 1041 bool LIR_OpVisitState::no_operands(LIR_Op* op) { 1042 visit(op); 1043 1044 return opr_count(inputMode) == 0 && 1045 opr_count(outputMode) == 0 && 1046 opr_count(tempMode) == 0 && 1047 info_count() == 0 && 1048 !has_call() && 1049 !has_slow_case(); 1050 } 1051 #endif 1052 1053 // LIR_OpReturn 1054 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) : 1055 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */), 1056 _stub(nullptr) { 1057 if (VM_Version::supports_stack_watermark_barrier()) { 1058 _stub = new C1SafepointPollStub(); 1059 } 1060 } 1061 1062 //--------------------------------------------------- 1063 1064 1065 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) { 1066 masm->emit_call(this); 1067 } 1068 1069 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const { 1070 ciType* return_type = method()->return_type(); 1071 if (InlineTypeReturnedAsFields) { 1072 if (return_type->is_inlinetype()) { 1073 ciInlineKlass* vk = return_type->as_inline_klass(); 1074 if (vk->can_be_returned_as_fields()) { 1075 if (vk_ret != nullptr) { 1076 *vk_ret = vk; 1077 } 1078 return true; 1079 } 1080 } else if (return_type->is_instance_klass() && 1081 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() || 1082 StressCallingConvention)) { 1083 // An inline type might be returned from the call but we don't know its type. 1084 // This can happen with method handle intrinsics or when the return type is 1085 // not loaded (method holder is not loaded or preload attribute is missing). 1086 // If an inline type is returned, we either get an oop to a buffer and nothing 1087 // needs to be done or one of the values being returned is the klass of the 1088 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline 1089 // type instance of that type and initialize it with the fields values being 1090 // returned in other registers. 1091 return true; 1092 } 1093 } 1094 return false; 1095 } 1096 1097 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) { 1098 masm->emit_rtcall(this); 1099 } 1100 1101 void LIR_OpLabel::emit_code(LIR_Assembler* masm) { 1102 masm->emit_opLabel(this); 1103 } 1104 1105 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) { 1106 masm->emit_arraycopy(this); 1107 ArrayCopyStub* code_stub = stub(); 1108 if (code_stub != nullptr) { 1109 masm->append_code_stub(code_stub); 1110 } 1111 } 1112 1113 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) { 1114 masm->emit_updatecrc32(this); 1115 } 1116 1117 void LIR_Op0::emit_code(LIR_Assembler* masm) { 1118 masm->emit_op0(this); 1119 } 1120 1121 void LIR_Op1::emit_code(LIR_Assembler* masm) { 1122 masm->emit_op1(this); 1123 } 1124 1125 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) { 1126 masm->emit_alloc_obj(this); 1127 masm->append_code_stub(stub()); 1128 } 1129 1130 void LIR_OpBranch::emit_code(LIR_Assembler* masm) { 1131 masm->emit_opBranch(this); 1132 if (stub()) { 1133 masm->append_code_stub(stub()); 1134 } 1135 } 1136 1137 void LIR_OpConvert::emit_code(LIR_Assembler* masm) { 1138 masm->emit_opConvert(this); 1139 if (stub() != nullptr) { 1140 masm->append_code_stub(stub()); 1141 } 1142 } 1143 1144 void LIR_Op2::emit_code(LIR_Assembler* masm) { 1145 masm->emit_op2(this); 1146 } 1147 1148 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) { 1149 masm->emit_alloc_array(this); 1150 masm->append_code_stub(stub()); 1151 } 1152 1153 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) { 1154 masm->emit_opTypeCheck(this); 1155 if (stub()) { 1156 masm->append_code_stub(stub()); 1157 } 1158 } 1159 1160 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) { 1161 masm->emit_opFlattenedArrayCheck(this); 1162 if (stub() != nullptr) { 1163 masm->append_code_stub(stub()); 1164 } 1165 } 1166 1167 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) { 1168 masm->emit_opNullFreeArrayCheck(this); 1169 } 1170 1171 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) { 1172 masm->emit_opSubstitutabilityCheck(this); 1173 if (stub() != nullptr) { 1174 masm->append_code_stub(stub()); 1175 } 1176 } 1177 1178 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) { 1179 masm->emit_compare_and_swap(this); 1180 } 1181 1182 void LIR_Op3::emit_code(LIR_Assembler* masm) { 1183 masm->emit_op3(this); 1184 } 1185 1186 void LIR_Op4::emit_code(LIR_Assembler* masm) { 1187 masm->emit_op4(this); 1188 } 1189 1190 void LIR_OpLock::emit_code(LIR_Assembler* masm) { 1191 masm->emit_lock(this); 1192 if (stub()) { 1193 masm->append_code_stub(stub()); 1194 } 1195 if (throw_ie_stub()) { 1196 masm->append_code_stub(throw_ie_stub()); 1197 } 1198 } 1199 1200 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) { 1201 masm->emit_load_klass(this); 1202 } 1203 1204 #ifdef ASSERT 1205 void LIR_OpAssert::emit_code(LIR_Assembler* masm) { 1206 masm->emit_assert(this); 1207 } 1208 #endif 1209 1210 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) { 1211 masm->emit_profile_call(this); 1212 } 1213 1214 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) { 1215 masm->emit_profile_type(this); 1216 } 1217 1218 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) { 1219 masm->emit_profile_inline_type(this); 1220 } 1221 1222 // LIR_List 1223 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block) 1224 : _operations(8) 1225 , _compilation(compilation) 1226 #ifndef PRODUCT 1227 , _block(block) 1228 #endif 1229 #ifdef ASSERT 1230 , _file(nullptr) 1231 , _line(0) 1232 #endif 1233 #ifdef RISCV 1234 , _cmp_opr1(LIR_OprFact::illegalOpr) 1235 , _cmp_opr2(LIR_OprFact::illegalOpr) 1236 #endif 1237 { } 1238 1239 1240 #ifdef ASSERT 1241 void LIR_List::set_file_and_line(const char * file, int line) { 1242 const char * f = strrchr(file, '/'); 1243 if (f == nullptr) f = strrchr(file, '\\'); 1244 if (f == nullptr) { 1245 f = file; 1246 } else { 1247 f++; 1248 } 1249 _file = f; 1250 _line = line; 1251 } 1252 #endif 1253 1254 #ifdef RISCV 1255 void LIR_List::set_cmp_oprs(LIR_Op* op) { 1256 switch (op->code()) { 1257 case lir_cmp: 1258 _cmp_opr1 = op->as_Op2()->in_opr1(); 1259 _cmp_opr2 = op->as_Op2()->in_opr2(); 1260 break; 1261 case lir_branch: // fall through 1262 case lir_cond_float_branch: 1263 assert(op->as_OpBranch()->cond() == lir_cond_always || 1264 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr), 1265 "conditional branches must have legal operands"); 1266 if (op->as_OpBranch()->cond() != lir_cond_always) { 1267 op->as_Op2()->set_in_opr1(_cmp_opr1); 1268 op->as_Op2()->set_in_opr2(_cmp_opr2); 1269 } 1270 break; 1271 case lir_cmove: 1272 op->as_Op4()->set_in_opr3(_cmp_opr1); 1273 op->as_Op4()->set_in_opr4(_cmp_opr2); 1274 break; 1275 case lir_cas_long: 1276 case lir_cas_obj: 1277 case lir_cas_int: 1278 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr(); 1279 _cmp_opr2 = LIR_OprFact::intConst(0); 1280 break; 1281 #if INCLUDE_ZGC 1282 case lir_xloadbarrier_test: 1283 _cmp_opr1 = FrameMap::as_opr(t1); 1284 _cmp_opr2 = LIR_OprFact::intConst(0); 1285 break; 1286 #endif 1287 default: 1288 break; 1289 } 1290 } 1291 #endif 1292 1293 void LIR_List::append(LIR_InsertionBuffer* buffer) { 1294 assert(this == buffer->lir_list(), "wrong lir list"); 1295 const int n = _operations.length(); 1296 1297 if (buffer->number_of_ops() > 0) { 1298 // increase size of instructions list 1299 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr); 1300 // insert ops from buffer into instructions list 1301 int op_index = buffer->number_of_ops() - 1; 1302 int ip_index = buffer->number_of_insertion_points() - 1; 1303 int from_index = n - 1; 1304 int to_index = _operations.length() - 1; 1305 for (; ip_index >= 0; ip_index --) { 1306 int index = buffer->index_at(ip_index); 1307 // make room after insertion point 1308 while (index < from_index) { 1309 _operations.at_put(to_index --, _operations.at(from_index --)); 1310 } 1311 // insert ops from buffer 1312 for (int i = buffer->count_at(ip_index); i > 0; i --) { 1313 _operations.at_put(to_index --, buffer->op_at(op_index --)); 1314 } 1315 } 1316 } 1317 1318 buffer->finish(); 1319 } 1320 1321 1322 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) { 1323 assert(reg->type() == T_OBJECT, "bad reg"); 1324 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info)); 1325 } 1326 1327 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) { 1328 assert(reg->type() == T_METADATA, "bad reg"); 1329 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info)); 1330 } 1331 1332 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1333 append(new LIR_Op1( 1334 lir_move, 1335 LIR_OprFact::address(addr), 1336 src, 1337 addr->type(), 1338 patch_code, 1339 info)); 1340 } 1341 1342 1343 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1344 append(new LIR_Op1( 1345 lir_move, 1346 LIR_OprFact::address(address), 1347 dst, 1348 address->type(), 1349 patch_code, 1350 info, lir_move_volatile)); 1351 } 1352 1353 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1354 append(new LIR_Op1( 1355 lir_move, 1356 LIR_OprFact::address(new LIR_Address(base, offset, type)), 1357 dst, 1358 type, 1359 patch_code, 1360 info, lir_move_volatile)); 1361 } 1362 1363 1364 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1365 append(new LIR_Op1( 1366 lir_move, 1367 LIR_OprFact::intConst(v), 1368 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)), 1369 type, 1370 patch_code, 1371 info)); 1372 } 1373 1374 1375 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1376 append(new LIR_Op1( 1377 lir_move, 1378 LIR_OprFact::oopConst(o), 1379 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)), 1380 type, 1381 patch_code, 1382 info)); 1383 } 1384 1385 1386 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1387 append(new LIR_Op1( 1388 lir_move, 1389 src, 1390 LIR_OprFact::address(addr), 1391 addr->type(), 1392 patch_code, 1393 info)); 1394 } 1395 1396 1397 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1398 append(new LIR_Op1( 1399 lir_move, 1400 src, 1401 LIR_OprFact::address(addr), 1402 addr->type(), 1403 patch_code, 1404 info, 1405 lir_move_volatile)); 1406 } 1407 1408 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) { 1409 append(new LIR_Op1( 1410 lir_move, 1411 src, 1412 LIR_OprFact::address(new LIR_Address(base, offset, type)), 1413 type, 1414 patch_code, 1415 info, lir_move_volatile)); 1416 } 1417 1418 1419 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1420 append(new LIR_Op3( 1421 lir_idiv, 1422 left, 1423 right, 1424 tmp, 1425 res, 1426 info)); 1427 } 1428 1429 1430 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1431 append(new LIR_Op3( 1432 lir_idiv, 1433 left, 1434 LIR_OprFact::intConst(right), 1435 tmp, 1436 res, 1437 info)); 1438 } 1439 1440 1441 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1442 append(new LIR_Op3( 1443 lir_irem, 1444 left, 1445 right, 1446 tmp, 1447 res, 1448 info)); 1449 } 1450 1451 1452 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) { 1453 append(new LIR_Op3( 1454 lir_irem, 1455 left, 1456 LIR_OprFact::intConst(right), 1457 tmp, 1458 res, 1459 info)); 1460 } 1461 1462 1463 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) { 1464 append(new LIR_Op2( 1465 lir_cmp, 1466 condition, 1467 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)), 1468 LIR_OprFact::intConst(c), 1469 info)); 1470 } 1471 1472 1473 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) { 1474 append(new LIR_Op2( 1475 lir_cmp, 1476 condition, 1477 reg, 1478 LIR_OprFact::address(addr), 1479 info)); 1480 } 1481 1482 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4, 1483 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) { 1484 append(new LIR_OpAllocObj( 1485 klass, 1486 dst, 1487 t1, 1488 t2, 1489 t3, 1490 t4, 1491 header_size, 1492 object_size, 1493 init_check, 1494 stub)); 1495 } 1496 1497 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, bool zero_array, bool always_slow_path) { 1498 append(new LIR_OpAllocArray( 1499 klass, 1500 len, 1501 dst, 1502 t1, 1503 t2, 1504 t3, 1505 t4, 1506 type, 1507 stub, 1508 zero_array, 1509 always_slow_path)); 1510 } 1511 1512 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1513 append(new LIR_Op2( 1514 lir_shl, 1515 value, 1516 count, 1517 dst, 1518 tmp)); 1519 } 1520 1521 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1522 append(new LIR_Op2( 1523 lir_shr, 1524 value, 1525 count, 1526 dst, 1527 tmp)); 1528 } 1529 1530 1531 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) { 1532 append(new LIR_Op2( 1533 lir_ushr, 1534 value, 1535 count, 1536 dst, 1537 tmp)); 1538 } 1539 1540 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) { 1541 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i, 1542 left, 1543 right, 1544 dst)); 1545 } 1546 1547 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub) { 1548 append(new LIR_OpLock( 1549 lir_lock, 1550 hdr, 1551 obj, 1552 lock, 1553 scratch, 1554 stub, 1555 info, 1556 throw_ie_stub)); 1557 } 1558 1559 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) { 1560 append(new LIR_OpLock( 1561 lir_unlock, 1562 hdr, 1563 obj, 1564 lock, 1565 scratch, 1566 stub, 1567 nullptr)); 1568 } 1569 1570 1571 void check_LIR() { 1572 // cannot do the proper checking as PRODUCT and other modes return different results 1573 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table"); 1574 } 1575 1576 1577 1578 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass, 1579 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check, 1580 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub, 1581 ciMethod* profiled_method, int profiled_bci, bool is_null_free) { 1582 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check 1583 // on the object. 1584 bool need_null_check = !is_null_free; 1585 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass, 1586 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub, 1587 need_null_check); 1588 if (profiled_method != nullptr && TypeProfileCasts) { 1589 c->set_profiled_method(profiled_method); 1590 c->set_profiled_bci(profiled_bci); 1591 c->set_should_profile(true); 1592 } 1593 append(c); 1594 } 1595 1596 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) { 1597 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr); 1598 if (profiled_method != nullptr && TypeProfileCasts) { 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 1607 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, 1608 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) { 1609 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass 1610 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception); 1611 if (profiled_method != nullptr && TypeProfileCasts) { 1612 c->set_profiled_method(profiled_method); 1613 c->set_profiled_bci(profiled_bci); 1614 c->set_should_profile(true); 1615 } 1616 append(c); 1617 } 1618 1619 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) { 1620 if (deoptimize_on_null) { 1621 // Emit an explicit null check and deoptimize if opr is null 1622 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none); 1623 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr)); 1624 branch(lir_cond_equal, deopt); 1625 } else { 1626 // Emit an implicit null check 1627 append(new LIR_Op1(lir_null_check, opr, info)); 1628 } 1629 } 1630 1631 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) { 1632 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub); 1633 append(c); 1634 } 1635 1636 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) { 1637 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp); 1638 append(c); 1639 } 1640 1641 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result, 1642 LIR_Opr tmp1, LIR_Opr tmp2, 1643 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op, 1644 CodeEmitInfo* info, CodeStub* stub) { 1645 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result, 1646 tmp1, tmp2, 1647 left_klass, right_klass, left_klass_op, right_klass_op, 1648 info, stub); 1649 append(c); 1650 } 1651 1652 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1653 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) { 1654 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result)); 1655 } 1656 1657 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value, 1658 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) { 1659 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result)); 1660 } 1661 1662 void LIR_List::cas_int(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_int, addr, cmp_value, new_value, t1, t2, result)); 1665 } 1666 1667 1668 #ifdef PRODUCT 1669 1670 void print_LIR(BlockList* blocks) { 1671 } 1672 1673 #else 1674 // LIR_Opr 1675 void LIR_Opr::print() const { 1676 print(tty); 1677 } 1678 1679 void LIR_Opr::print(outputStream* out) const { 1680 if (is_illegal()) { 1681 return; 1682 } 1683 1684 out->print("["); 1685 if (is_pointer()) { 1686 pointer()->print_value_on(out); 1687 } else if (is_single_stack()) { 1688 out->print("stack:%d", single_stack_ix()); 1689 } else if (is_double_stack()) { 1690 out->print("dbl_stack:%d",double_stack_ix()); 1691 } else if (is_virtual()) { 1692 out->print("R%d", vreg_number()); 1693 } else if (is_single_cpu()) { 1694 out->print("%s", as_register()->name()); 1695 } else if (is_double_cpu()) { 1696 out->print("%s", as_register_hi()->name()); 1697 out->print("%s", as_register_lo()->name()); 1698 #if defined(X86) 1699 } else if (is_single_xmm()) { 1700 out->print("%s", as_xmm_float_reg()->name()); 1701 } else if (is_double_xmm()) { 1702 out->print("%s", as_xmm_double_reg()->name()); 1703 } else if (is_single_fpu()) { 1704 out->print("fpu%d", fpu_regnr()); 1705 } else if (is_double_fpu()) { 1706 out->print("fpu%d", fpu_regnrLo()); 1707 #elif defined(AARCH64) 1708 } else if (is_single_fpu()) { 1709 out->print("fpu%d", fpu_regnr()); 1710 } else if (is_double_fpu()) { 1711 out->print("fpu%d", fpu_regnrLo()); 1712 #elif defined(ARM) 1713 } else if (is_single_fpu()) { 1714 out->print("s%d", fpu_regnr()); 1715 } else if (is_double_fpu()) { 1716 out->print("d%d", fpu_regnrLo() >> 1); 1717 #else 1718 } else if (is_single_fpu()) { 1719 out->print("%s", as_float_reg()->name()); 1720 } else if (is_double_fpu()) { 1721 out->print("%s", as_double_reg()->name()); 1722 #endif 1723 1724 } else if (is_illegal()) { 1725 out->print("-"); 1726 } else { 1727 out->print("Unknown Operand"); 1728 } 1729 if (!is_illegal()) { 1730 out->print("|%c", type_char()); 1731 } 1732 if (is_register() && is_last_use()) { 1733 out->print("(last_use)"); 1734 } 1735 out->print("]"); 1736 } 1737 1738 1739 // LIR_Address 1740 void LIR_Const::print_value_on(outputStream* out) const { 1741 switch (type()) { 1742 case T_ADDRESS:out->print("address:%d",as_jint()); break; 1743 case T_INT: out->print("int:%d", as_jint()); break; 1744 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break; 1745 case T_FLOAT: out->print("flt:%f", as_jfloat()); break; 1746 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break; 1747 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break; 1748 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break; 1749 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break; 1750 } 1751 } 1752 1753 // LIR_Address 1754 void LIR_Address::print_value_on(outputStream* out) const { 1755 out->print("Base:"); _base->print(out); 1756 if (!_index->is_illegal()) { 1757 out->print(" Index:"); _index->print(out); 1758 switch (scale()) { 1759 case times_1: break; 1760 case times_2: out->print(" * 2"); break; 1761 case times_4: out->print(" * 4"); break; 1762 case times_8: out->print(" * 8"); break; 1763 } 1764 } 1765 out->print(" Disp: %zd", _disp); 1766 } 1767 1768 // debug output of block header without InstructionPrinter 1769 // (because phi functions are not necessary for LIR) 1770 static void print_block(BlockBegin* x) { 1771 // print block id 1772 BlockEnd* end = x->end(); 1773 tty->print("B%d ", x->block_id()); 1774 1775 // print flags 1776 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std "); 1777 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr "); 1778 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex "); 1779 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr "); 1780 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb "); 1781 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh "); 1782 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le "); 1783 1784 // print block bci range 1785 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci())); 1786 1787 // print predecessors and successors 1788 if (x->number_of_preds() > 0) { 1789 tty->print("preds: "); 1790 for (int i = 0; i < x->number_of_preds(); i ++) { 1791 tty->print("B%d ", x->pred_at(i)->block_id()); 1792 } 1793 } 1794 1795 if (end != nullptr && x->number_of_sux() > 0) { 1796 tty->print("sux: "); 1797 for (int i = 0; i < x->number_of_sux(); i ++) { 1798 tty->print("B%d ", x->sux_at(i)->block_id()); 1799 } 1800 } 1801 1802 // print exception handlers 1803 if (x->number_of_exception_handlers() > 0) { 1804 tty->print("xhandler: "); 1805 for (int i = 0; i < x->number_of_exception_handlers(); i++) { 1806 tty->print("B%d ", x->exception_handler_at(i)->block_id()); 1807 } 1808 } 1809 1810 tty->cr(); 1811 } 1812 1813 void print_LIR(BlockList* blocks) { 1814 tty->print_cr("LIR:"); 1815 int i; 1816 for (i = 0; i < blocks->length(); i++) { 1817 BlockBegin* bb = blocks->at(i); 1818 print_block(bb); 1819 tty->print("__id_Instruction___________________________________________"); tty->cr(); 1820 bb->lir()->print_instructions(); 1821 } 1822 } 1823 1824 void LIR_List::print_instructions() { 1825 for (int i = 0; i < _operations.length(); i++) { 1826 _operations.at(i)->print(); tty->cr(); 1827 } 1828 tty->cr(); 1829 } 1830 1831 // LIR_Ops printing routines 1832 // LIR_Op 1833 void LIR_Op::print_on(outputStream* out) const { 1834 if (id() != -1 || PrintCFGToFile) { 1835 out->print("%4d ", id()); 1836 } else { 1837 out->print(" "); 1838 } 1839 out->print("%s ", name()); 1840 print_instr(out); 1841 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci()); 1842 #ifdef ASSERT 1843 if (Verbose && _file != nullptr) { 1844 out->print(" (%s:%d)", _file, _line); 1845 } 1846 #endif 1847 } 1848 1849 const char * LIR_Op::name() const { 1850 const char* s = nullptr; 1851 switch(code()) { 1852 // LIR_Op0 1853 case lir_membar: s = "membar"; break; 1854 case lir_membar_acquire: s = "membar_acquire"; break; 1855 case lir_membar_release: s = "membar_release"; break; 1856 case lir_membar_loadload: s = "membar_loadload"; break; 1857 case lir_membar_storestore: s = "membar_storestore"; break; 1858 case lir_membar_loadstore: s = "membar_loadstore"; break; 1859 case lir_membar_storeload: s = "membar_storeload"; break; 1860 case lir_label: s = "label"; break; 1861 case lir_nop: s = "nop"; break; 1862 case lir_on_spin_wait: s = "on_spin_wait"; break; 1863 case lir_std_entry: s = "std_entry"; break; 1864 case lir_osr_entry: s = "osr_entry"; break; 1865 case lir_breakpoint: s = "breakpoint"; break; 1866 case lir_get_thread: s = "get_thread"; break; 1867 case lir_check_orig_pc: s = "check_orig_pc"; break; 1868 // LIR_Op1 1869 case lir_push: s = "push"; break; 1870 case lir_pop: s = "pop"; break; 1871 case lir_null_check: s = "null_check"; break; 1872 case lir_return: s = "return"; break; 1873 case lir_safepoint: s = "safepoint"; break; 1874 case lir_leal: s = "leal"; break; 1875 case lir_branch: s = "branch"; break; 1876 case lir_cond_float_branch: s = "flt_cond_br"; break; 1877 case lir_move: s = "move"; break; 1878 case lir_abs: s = "abs"; break; 1879 case lir_neg: s = "neg"; break; 1880 case lir_sqrt: s = "sqrt"; break; 1881 case lir_f2hf: s = "f2hf"; break; 1882 case lir_hf2f: s = "hf2f"; break; 1883 case lir_rtcall: s = "rtcall"; break; 1884 case lir_throw: s = "throw"; break; 1885 case lir_unwind: s = "unwind"; break; 1886 case lir_convert: s = "convert"; break; 1887 case lir_alloc_object: s = "alloc_obj"; break; 1888 case lir_monaddr: s = "mon_addr"; break; 1889 // LIR_Op2 1890 case lir_cmp: s = "cmp"; break; 1891 case lir_cmp_l2i: s = "cmp_l2i"; break; 1892 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break; 1893 case lir_cmp_fd2i: s = "comp_fd2i"; break; 1894 case lir_add: s = "add"; break; 1895 case lir_sub: s = "sub"; break; 1896 case lir_mul: s = "mul"; break; 1897 case lir_div: s = "div"; break; 1898 case lir_rem: s = "rem"; break; 1899 case lir_logic_and: s = "logic_and"; break; 1900 case lir_logic_or: s = "logic_or"; break; 1901 case lir_logic_xor: s = "logic_xor"; break; 1902 case lir_shl: s = "shift_left"; break; 1903 case lir_shr: s = "shift_right"; break; 1904 case lir_ushr: s = "ushift_right"; break; 1905 case lir_alloc_array: s = "alloc_array"; break; 1906 case lir_xadd: s = "xadd"; break; 1907 case lir_xchg: s = "xchg"; break; 1908 // LIR_Op3 1909 case lir_idiv: s = "idiv"; break; 1910 case lir_irem: s = "irem"; break; 1911 case lir_fmad: s = "fmad"; break; 1912 case lir_fmaf: s = "fmaf"; break; 1913 // LIR_Op4 1914 case lir_cmove: s = "cmove"; break; 1915 // LIR_OpJavaCall 1916 case lir_static_call: s = "static"; break; 1917 case lir_optvirtual_call: s = "optvirtual"; break; 1918 case lir_icvirtual_call: s = "icvirtual"; break; 1919 case lir_dynamic_call: s = "dynamic"; break; 1920 // LIR_OpArrayCopy 1921 case lir_arraycopy: s = "arraycopy"; break; 1922 // LIR_OpUpdateCRC32 1923 case lir_updatecrc32: s = "updatecrc32"; break; 1924 // LIR_OpLock 1925 case lir_lock: s = "lock"; break; 1926 case lir_unlock: s = "unlock"; break; 1927 // LIR_OpTypeCheck 1928 case lir_instanceof: s = "instanceof"; break; 1929 case lir_checkcast: s = "checkcast"; break; 1930 case lir_store_check: s = "store_check"; break; 1931 // LIR_OpFlattenedArrayCheck 1932 case lir_flat_array_check: s = "flat_array_check"; break; 1933 // LIR_OpNullFreeArrayCheck 1934 case lir_null_free_array_check: s = "null_free_array_check"; break; 1935 // LIR_OpSubstitutabilityCheck 1936 case lir_substitutability_check: s = "substitutability_check"; break; 1937 // LIR_OpCompareAndSwap 1938 case lir_cas_long: s = "cas_long"; break; 1939 case lir_cas_obj: s = "cas_obj"; break; 1940 case lir_cas_int: s = "cas_int"; break; 1941 // LIR_OpProfileCall 1942 case lir_profile_call: s = "profile_call"; break; 1943 // LIR_OpProfileType 1944 case lir_profile_type: s = "profile_type"; break; 1945 // LIR_OpProfileInlineType 1946 case lir_profile_inline_type: s = "profile_inline_type"; break; 1947 // LIR_OpAssert 1948 #ifdef ASSERT 1949 case lir_assert: s = "assert"; break; 1950 #endif 1951 case lir_none: ShouldNotReachHere();break; 1952 default: s = "illegal_op"; break; 1953 } 1954 return s; 1955 } 1956 1957 // LIR_OpJavaCall 1958 void LIR_OpJavaCall::print_instr(outputStream* out) const { 1959 out->print("call: "); 1960 out->print("[addr: " INTPTR_FORMAT "]", p2i(address())); 1961 if (receiver()->is_valid()) { 1962 out->print(" [recv: "); receiver()->print(out); out->print("]"); 1963 } 1964 if (result_opr()->is_valid()) { 1965 out->print(" [result: "); result_opr()->print(out); out->print("]"); 1966 } 1967 } 1968 1969 // LIR_OpLabel 1970 void LIR_OpLabel::print_instr(outputStream* out) const { 1971 out->print("[label:" INTPTR_FORMAT "]", p2i(_label)); 1972 } 1973 1974 // LIR_OpArrayCopy 1975 void LIR_OpArrayCopy::print_instr(outputStream* out) const { 1976 src()->print(out); out->print(" "); 1977 src_pos()->print(out); out->print(" "); 1978 dst()->print(out); out->print(" "); 1979 dst_pos()->print(out); out->print(" "); 1980 length()->print(out); out->print(" "); 1981 tmp()->print(out); out->print(" "); 1982 } 1983 1984 // LIR_OpUpdateCRC32 1985 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const { 1986 crc()->print(out); out->print(" "); 1987 val()->print(out); out->print(" "); 1988 result_opr()->print(out); out->print(" "); 1989 } 1990 1991 // LIR_OpCompareAndSwap 1992 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const { 1993 addr()->print(out); out->print(" "); 1994 cmp_value()->print(out); out->print(" "); 1995 new_value()->print(out); out->print(" "); 1996 tmp1()->print(out); out->print(" "); 1997 tmp2()->print(out); out->print(" "); 1998 1999 } 2000 2001 // LIR_Op0 2002 void LIR_Op0::print_instr(outputStream* out) const { 2003 result_opr()->print(out); 2004 } 2005 2006 // LIR_Op1 2007 const char * LIR_Op1::name() const { 2008 if (code() == lir_move) { 2009 switch (move_kind()) { 2010 case lir_move_normal: 2011 return "move"; 2012 case lir_move_volatile: 2013 return "volatile_move"; 2014 case lir_move_wide: 2015 return "wide_move"; 2016 default: 2017 ShouldNotReachHere(); 2018 return "illegal_op"; 2019 } 2020 } else { 2021 return LIR_Op::name(); 2022 } 2023 } 2024 2025 2026 void LIR_Op1::print_instr(outputStream* out) const { 2027 _opr->print(out); out->print(" "); 2028 result_opr()->print(out); out->print(" "); 2029 print_patch_code(out, patch_code()); 2030 } 2031 2032 2033 // LIR_Op1 2034 void LIR_OpRTCall::print_instr(outputStream* out) const { 2035 intx a = (intx)addr(); 2036 out->print("%s", Runtime1::name_for_address(addr())); 2037 out->print(" "); 2038 tmp()->print(out); 2039 } 2040 2041 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) { 2042 switch(code) { 2043 case lir_patch_none: break; 2044 case lir_patch_low: out->print("[patch_low]"); break; 2045 case lir_patch_high: out->print("[patch_high]"); break; 2046 case lir_patch_normal: out->print("[patch_normal]"); break; 2047 default: ShouldNotReachHere(); 2048 } 2049 } 2050 2051 // LIR_OpBranch 2052 void LIR_OpBranch::print_instr(outputStream* out) const { 2053 print_condition(out, cond()); out->print(" "); 2054 in_opr1()->print(out); out->print(" "); 2055 in_opr2()->print(out); out->print(" "); 2056 if (block() != nullptr) { 2057 out->print("[B%d] ", block()->block_id()); 2058 } else if (stub() != nullptr) { 2059 out->print("["); 2060 stub()->print_name(out); 2061 out->print(": " INTPTR_FORMAT "]", p2i(stub())); 2062 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci()); 2063 } else { 2064 out->print("[label:" INTPTR_FORMAT "] ", p2i(label())); 2065 } 2066 if (ublock() != nullptr) { 2067 out->print("unordered: [B%d] ", ublock()->block_id()); 2068 } 2069 } 2070 2071 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) { 2072 switch(cond) { 2073 case lir_cond_equal: out->print("[EQ]"); break; 2074 case lir_cond_notEqual: out->print("[NE]"); break; 2075 case lir_cond_less: out->print("[LT]"); break; 2076 case lir_cond_lessEqual: out->print("[LE]"); break; 2077 case lir_cond_greaterEqual: out->print("[GE]"); break; 2078 case lir_cond_greater: out->print("[GT]"); break; 2079 case lir_cond_belowEqual: out->print("[BE]"); break; 2080 case lir_cond_aboveEqual: out->print("[AE]"); break; 2081 case lir_cond_always: out->print("[AL]"); break; 2082 default: out->print("[%d]",cond); break; 2083 } 2084 } 2085 2086 // LIR_OpConvert 2087 void LIR_OpConvert::print_instr(outputStream* out) const { 2088 print_bytecode(out, bytecode()); 2089 in_opr()->print(out); out->print(" "); 2090 result_opr()->print(out); out->print(" "); 2091 } 2092 2093 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) { 2094 switch(code) { 2095 case Bytecodes::_d2f: out->print("[d2f] "); break; 2096 case Bytecodes::_d2i: out->print("[d2i] "); break; 2097 case Bytecodes::_d2l: out->print("[d2l] "); break; 2098 case Bytecodes::_f2d: out->print("[f2d] "); break; 2099 case Bytecodes::_f2i: out->print("[f2i] "); break; 2100 case Bytecodes::_f2l: out->print("[f2l] "); break; 2101 case Bytecodes::_i2b: out->print("[i2b] "); break; 2102 case Bytecodes::_i2c: out->print("[i2c] "); break; 2103 case Bytecodes::_i2d: out->print("[i2d] "); break; 2104 case Bytecodes::_i2f: out->print("[i2f] "); break; 2105 case Bytecodes::_i2l: out->print("[i2l] "); break; 2106 case Bytecodes::_i2s: out->print("[i2s] "); break; 2107 case Bytecodes::_l2i: out->print("[l2i] "); break; 2108 case Bytecodes::_l2f: out->print("[l2f] "); break; 2109 case Bytecodes::_l2d: out->print("[l2d] "); break; 2110 default: 2111 out->print("[?%d]",code); 2112 break; 2113 } 2114 } 2115 2116 void LIR_OpAllocObj::print_instr(outputStream* out) const { 2117 klass()->print(out); out->print(" "); 2118 obj()->print(out); out->print(" "); 2119 tmp1()->print(out); out->print(" "); 2120 tmp2()->print(out); out->print(" "); 2121 tmp3()->print(out); out->print(" "); 2122 tmp4()->print(out); out->print(" "); 2123 out->print("[hdr:%d]", header_size()); out->print(" "); 2124 out->print("[obj:%d]", object_size()); out->print(" "); 2125 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2126 } 2127 2128 // LIR_Op2 2129 void LIR_Op2::print_instr(outputStream* out) const { 2130 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) { 2131 print_condition(out, condition()); out->print(" "); 2132 } 2133 in_opr1()->print(out); out->print(" "); 2134 in_opr2()->print(out); out->print(" "); 2135 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); } 2136 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); } 2137 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); } 2138 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); } 2139 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); } 2140 result_opr()->print(out); 2141 } 2142 2143 void LIR_OpAllocArray::print_instr(outputStream* out) const { 2144 klass()->print(out); out->print(" "); 2145 len()->print(out); out->print(" "); 2146 obj()->print(out); out->print(" "); 2147 tmp1()->print(out); out->print(" "); 2148 tmp2()->print(out); out->print(" "); 2149 tmp3()->print(out); out->print(" "); 2150 tmp4()->print(out); out->print(" "); 2151 out->print("[type:0x%x]", type()); out->print(" "); 2152 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2153 } 2154 2155 2156 void LIR_OpTypeCheck::print_instr(outputStream* out) const { 2157 object()->print(out); out->print(" "); 2158 if (code() == lir_store_check) { 2159 array()->print(out); out->print(" "); 2160 } 2161 if (code() != lir_store_check) { 2162 klass()->print_name_on(out); out->print(" "); 2163 if (fast_check()) out->print("fast_check "); 2164 } 2165 tmp1()->print(out); out->print(" "); 2166 tmp2()->print(out); out->print(" "); 2167 tmp3()->print(out); out->print(" "); 2168 result_opr()->print(out); out->print(" "); 2169 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci()); 2170 } 2171 2172 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const { 2173 array()->print(out); out->print(" "); 2174 value()->print(out); out->print(" "); 2175 tmp()->print(out); out->print(" "); 2176 if (stub() != nullptr) { 2177 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2178 } 2179 } 2180 2181 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const { 2182 array()->print(out); out->print(" "); 2183 tmp()->print(out); out->print(" "); 2184 } 2185 2186 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const { 2187 result_opr()->print(out); out->print(" "); 2188 left()->print(out); out->print(" "); 2189 right()->print(out); out->print(" "); 2190 equal_result()->print(out); out->print(" "); 2191 not_equal_result()->print(out); out->print(" "); 2192 tmp1()->print(out); out->print(" "); 2193 tmp2()->print(out); out->print(" "); 2194 if (left_klass() == nullptr) { 2195 out->print("unknown "); 2196 } else { 2197 left_klass()->print(out); out->print(" "); 2198 } 2199 if (right_klass() == nullptr) { 2200 out->print("unknown "); 2201 } else { 2202 right_klass()->print(out); out->print(" "); 2203 } 2204 left_klass_op()->print(out); out->print(" "); 2205 right_klass_op()->print(out); out->print(" "); 2206 if (stub() != nullptr) { 2207 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2208 } 2209 } 2210 2211 // LIR_Op3 2212 void LIR_Op3::print_instr(outputStream* out) const { 2213 in_opr1()->print(out); out->print(" "); 2214 in_opr2()->print(out); out->print(" "); 2215 in_opr3()->print(out); out->print(" "); 2216 result_opr()->print(out); 2217 } 2218 2219 // LIR_Op4 2220 void LIR_Op4::print_instr(outputStream* out) const { 2221 print_condition(out, condition()); out->print(" "); 2222 in_opr1()->print(out); out->print(" "); 2223 in_opr2()->print(out); out->print(" "); 2224 in_opr3()->print(out); out->print(" "); 2225 in_opr4()->print(out); out->print(" "); 2226 result_opr()->print(out); 2227 } 2228 2229 void LIR_OpLock::print_instr(outputStream* out) const { 2230 hdr_opr()->print(out); out->print(" "); 2231 obj_opr()->print(out); out->print(" "); 2232 lock_opr()->print(out); out->print(" "); 2233 if (_scratch->is_valid()) { 2234 _scratch->print(out); out->print(" "); 2235 } 2236 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry())); 2237 } 2238 2239 void LIR_OpLoadKlass::print_instr(outputStream* out) const { 2240 obj()->print(out); out->print(" "); 2241 result_opr()->print(out); out->print(" "); 2242 } 2243 2244 #ifdef ASSERT 2245 void LIR_OpAssert::print_instr(outputStream* out) const { 2246 print_condition(out, condition()); out->print(" "); 2247 in_opr1()->print(out); out->print(" "); 2248 in_opr2()->print(out); out->print(", \""); 2249 out->print("%s", msg()); out->print("\""); 2250 } 2251 #endif 2252 2253 2254 // LIR_OpProfileCall 2255 void LIR_OpProfileCall::print_instr(outputStream* out) const { 2256 profiled_method()->name()->print_symbol_on(out); 2257 out->print("."); 2258 profiled_method()->holder()->name()->print_symbol_on(out); 2259 out->print(" @ %d ", profiled_bci()); 2260 mdo()->print(out); out->print(" "); 2261 recv()->print(out); out->print(" "); 2262 tmp1()->print(out); out->print(" "); 2263 } 2264 2265 // LIR_OpProfileType 2266 void LIR_OpProfileType::print_instr(outputStream* out) const { 2267 out->print("exact = "); 2268 if (exact_klass() == nullptr) { 2269 out->print("unknown"); 2270 } else { 2271 exact_klass()->print_name_on(out); 2272 } 2273 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass()); 2274 out->print(" "); 2275 mdp()->print(out); out->print(" "); 2276 obj()->print(out); out->print(" "); 2277 tmp()->print(out); out->print(" "); 2278 } 2279 2280 // LIR_OpProfileInlineType 2281 void LIR_OpProfileInlineType::print_instr(outputStream* out) const { 2282 out->print(" flag = %x ", flag()); 2283 mdp()->print(out); out->print(" "); 2284 obj()->print(out); out->print(" "); 2285 tmp()->print(out); out->print(" "); 2286 } 2287 2288 #endif // PRODUCT 2289 2290 // Implementation of LIR_InsertionBuffer 2291 2292 void LIR_InsertionBuffer::append(int index, LIR_Op* op) { 2293 assert(_index_and_count.length() % 2 == 0, "must have a count for each index"); 2294 2295 int i = number_of_insertion_points() - 1; 2296 if (i < 0 || index_at(i) < index) { 2297 append_new(index, 1); 2298 } else { 2299 assert(index_at(i) == index, "can append LIR_Ops in ascending order only"); 2300 assert(count_at(i) > 0, "check"); 2301 set_count_at(i, count_at(i) + 1); 2302 } 2303 _ops.push(op); 2304 2305 DEBUG_ONLY(verify()); 2306 } 2307 2308 #ifdef ASSERT 2309 void LIR_InsertionBuffer::verify() { 2310 int sum = 0; 2311 int prev_idx = -1; 2312 2313 for (int i = 0; i < number_of_insertion_points(); i++) { 2314 assert(prev_idx < index_at(i), "index must be ordered ascending"); 2315 sum += count_at(i); 2316 } 2317 assert(sum == number_of_ops(), "wrong total sum"); 2318 } 2319 #endif