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(RISCV) || defined(PPC64)
388 if (expected_type != nullptr && flags == 0) {
389 _stub = nullptr;
390 } else {
391 _stub = new ArrayCopyStub(this);
392 }
393 #else
394 _stub = new ArrayCopyStub(this);
395 #endif
396 }
397
398 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
399 : LIR_Op(lir_updatecrc32, res, nullptr)
400 , _crc(crc)
401 , _val(val) {
402 }
403
404 //-------------------verify--------------------------
405
406 void LIR_Op1::verify() const {
407 switch(code()) {
408 case lir_move:
409 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
410 break;
411 case lir_null_check:
412 assert(in_opr()->is_register(), "must be");
413 break;
414 case lir_return:
415 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
416 break;
417 default:
418 break;
419 }
420 }
421
422 void LIR_OpRTCall::verify() const {
423 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
424 }
425
426 //-------------------visits--------------------------
427
428 // complete rework of LIR instruction visitor.
429 // The virtual call for each instruction type is replaced by a big
430 // switch that adds the operands for each instruction
431
432 void LIR_OpVisitState::visit(LIR_Op* op) {
433 // copy information from the LIR_Op
434 reset();
435 set_op(op);
436
437 switch (op->code()) {
438
439 // LIR_Op0
440 case lir_fpop_raw: // result and info always invalid
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_fxch: // input always valid, result and info always invalid
482 case lir_fld: // input always valid, result and info always invalid
483 case lir_push: // input always valid, result and info always invalid
484 case lir_pop: // input always valid, result and info always invalid
485 case lir_leal: // input and result always valid, info always invalid
486 case lir_monaddr: // input and result always valid, info always invalid
487 case lir_null_check: // input and info always valid, result always invalid
488 case lir_move: // input and result always valid, may have info
489 case lir_sqrt: // FP Ops have no info, but input and result
490 case lir_abs:
491 case lir_neg:
492 case lir_f2hf:
493 case lir_hf2f:
494 {
495 assert(op->as_Op1() != nullptr, "must be");
496 LIR_Op1* op1 = (LIR_Op1*)op;
497
498 if (op1->_info) do_info(op1->_info);
499 if (op1->_opr->is_valid()) do_input(op1->_opr);
500 if (op1->_tmp->is_valid()) do_temp(op1->_tmp);
501 if (op1->_result->is_valid()) do_output(op1->_result);
502
503 break;
504 }
505
506 case lir_return:
507 {
508 assert(op->as_OpReturn() != nullptr, "must be");
509 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
510
511 if (op_ret->_info) do_info(op_ret->_info);
512 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
513 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
514 if (op_ret->stub() != nullptr) do_stub(op_ret->stub());
515
516 break;
517 }
518
519 case lir_safepoint:
520 {
521 assert(op->as_Op1() != nullptr, "must be");
522 LIR_Op1* op1 = (LIR_Op1*)op;
523
524 assert(op1->_info != nullptr, ""); do_info(op1->_info);
525 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
526 assert(op1->_tmp->is_illegal(), "not used");
527 assert(op1->_result->is_illegal(), "safepoint does not produce value");
528
529 break;
530 }
531
532 // LIR_OpConvert;
533 case lir_convert: // input and result always valid, info always invalid
534 {
535 assert(op->as_OpConvert() != nullptr, "must be");
536 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
537
538 assert(opConvert->_info == nullptr, "must be");
539 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
540 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
541 do_stub(opConvert->_stub);
542
543 break;
544 }
545
546 // LIR_OpBranch;
547 case lir_branch: // may have info, input and result register always invalid
548 case lir_cond_float_branch: // may have info, input and result register always invalid
549 {
550 assert(op->as_OpBranch() != nullptr, "must be");
551 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
552
553 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() &&
554 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() &&
555 opBranch->_tmp5->is_illegal(), "not used");
556
557 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1);
558 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2);
559
560 if (opBranch->_info != nullptr) do_info(opBranch->_info);
561 assert(opBranch->_result->is_illegal(), "not used");
562 if (opBranch->_stub != nullptr) opBranch->stub()->visit(this);
563
564 break;
565 }
566
567
568 // LIR_OpAllocObj
569 case lir_alloc_object:
570 {
571 assert(op->as_OpAllocObj() != nullptr, "must be");
572 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
573
574 if (opAllocObj->_info) do_info(opAllocObj->_info);
575 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
576 do_temp(opAllocObj->_opr);
577 }
578 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
579 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
580 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
581 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
582 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
583 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub);
584 break;
585 }
586
587
588 // LIR_OpRoundFP;
589 case lir_roundfp: {
590 assert(op->as_OpRoundFP() != nullptr, "must be");
591 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
592
593 assert(op->_info == nullptr, "info not used by this instruction");
594 assert(opRoundFP->_tmp->is_illegal(), "not used");
595 do_input(opRoundFP->_opr);
596 do_output(opRoundFP->_result);
597
598 break;
599 }
600
601
602 // LIR_Op2
603 case lir_cmp:
604 case lir_cmp_l2i:
605 case lir_ucmp_fd2i:
606 case lir_cmp_fd2i:
607 case lir_add:
608 case lir_sub:
609 case lir_rem:
610 case lir_logic_and:
611 case lir_logic_or:
612 case lir_logic_xor:
613 case lir_shl:
614 case lir_shr:
615 case lir_ushr:
616 case lir_xadd:
617 case lir_xchg:
618 case lir_assert:
619 {
620 assert(op->as_Op2() != nullptr, "must be");
621 LIR_Op2* op2 = (LIR_Op2*)op;
622 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
623 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
624
625 if (op2->_info) do_info(op2->_info);
626 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
627 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
628 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
629 if (op2->_result->is_valid()) do_output(op2->_result);
630 if (op->code() == lir_xchg || op->code() == lir_xadd) {
631 // on ARM and PPC, return value is loaded first so could
632 // destroy inputs. On other platforms that implement those
633 // (x86, sparc), the extra constrainsts are harmless.
634 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
635 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
636 }
637
638 break;
639 }
640
641 // special handling for cmove: right input operand must not be equal
642 // to the result operand, otherwise the backend fails
643 case lir_cmove:
644 {
645 assert(op->as_Op4() != nullptr, "must be");
646 LIR_Op4* op4 = (LIR_Op4*)op;
647
648 assert(op4->_info == nullptr && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() &&
649 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used");
650 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used");
651
652 do_input(op4->_opr1);
653 do_input(op4->_opr2);
654 if (op4->_opr3->is_valid()) do_input(op4->_opr3);
655 if (op4->_opr4->is_valid()) do_input(op4->_opr4);
656 do_temp(op4->_opr2);
657 do_output(op4->_result);
658
659 break;
660 }
661
662 // vspecial handling for strict operations: register input operands
663 // as temp to guarantee that they do not overlap with other
664 // registers
665 case lir_mul:
666 case lir_div:
667 {
668 assert(op->as_Op2() != nullptr, "must be");
669 LIR_Op2* op2 = (LIR_Op2*)op;
670
671 assert(op2->_info == nullptr, "not used");
672 assert(op2->_opr1->is_valid(), "used");
673 assert(op2->_opr2->is_valid(), "used");
674 assert(op2->_result->is_valid(), "used");
675 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
676 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
677
678 do_input(op2->_opr1); do_temp(op2->_opr1);
679 do_input(op2->_opr2); do_temp(op2->_opr2);
680 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
681 do_output(op2->_result);
682
683 break;
684 }
685
686 case lir_throw: {
687 assert(op->as_Op2() != nullptr, "must be");
688 LIR_Op2* op2 = (LIR_Op2*)op;
689
690 if (op2->_info) do_info(op2->_info);
691 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
692 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
693 assert(op2->_result->is_illegal(), "no result");
694 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
695 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
696
697 break;
698 }
699
700 case lir_unwind: {
701 assert(op->as_Op1() != nullptr, "must be");
702 LIR_Op1* op1 = (LIR_Op1*)op;
703
704 assert(op1->_info == nullptr, "no info");
705 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
706 assert(op1->_tmp->is_illegal(), "not used");
707 assert(op1->_result->is_illegal(), "no result");
708
709 break;
710 }
711
712 // LIR_Op3
713 case lir_idiv:
714 case lir_irem: {
715 assert(op->as_Op3() != nullptr, "must be");
716 LIR_Op3* op3= (LIR_Op3*)op;
717
718 if (op3->_info) do_info(op3->_info);
719 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
720
721 // second operand is input and temp, so ensure that second operand
722 // and third operand get not the same register
723 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
724 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
725 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
726
727 if (op3->_result->is_valid()) do_output(op3->_result);
728
729 break;
730 }
731
732 case lir_fmad:
733 case lir_fmaf: {
734 assert(op->as_Op3() != nullptr, "must be");
735 LIR_Op3* op3= (LIR_Op3*)op;
736 assert(op3->_info == nullptr, "no info");
737 do_input(op3->_opr1);
738 do_input(op3->_opr2);
739 do_input(op3->_opr3);
740 do_output(op3->_result);
741 break;
742 }
743
744 // LIR_OpJavaCall
745 case lir_static_call:
746 case lir_optvirtual_call:
747 case lir_icvirtual_call:
748 case lir_dynamic_call: {
749 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
750 assert(opJavaCall != nullptr, "must be");
751
752 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
753
754 // only visit register parameters
755 int n = opJavaCall->_arguments->length();
756 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
757 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
758 do_input(*opJavaCall->_arguments->adr_at(i));
759 }
760 }
761
762 if (opJavaCall->_info) do_info(opJavaCall->_info);
763 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
764 opJavaCall->is_method_handle_invoke()) {
765 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
766 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
767 }
768 do_call();
769 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
770
771 break;
772 }
773
774
775 // LIR_OpRTCall
776 case lir_rtcall: {
777 assert(op->as_OpRTCall() != nullptr, "must be");
778 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
779
780 // only visit register parameters
781 int n = opRTCall->_arguments->length();
782 for (int i = 0; i < n; i++) {
783 if (!opRTCall->_arguments->at(i)->is_pointer()) {
784 do_input(*opRTCall->_arguments->adr_at(i));
785 }
786 }
787 if (opRTCall->_info) do_info(opRTCall->_info);
788 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
789 do_call();
790 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
791
792 break;
793 }
794
795
796 // LIR_OpArrayCopy
797 case lir_arraycopy: {
798 assert(op->as_OpArrayCopy() != nullptr, "must be");
799 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
800
801 assert(opArrayCopy->_result->is_illegal(), "unused");
802 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
803 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
804 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
805 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
806 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
807 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
808 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
809
810 // the implementation of arraycopy always has a call into the runtime
811 do_call();
812
813 break;
814 }
815
816
817 // LIR_OpUpdateCRC32
818 case lir_updatecrc32: {
819 assert(op->as_OpUpdateCRC32() != nullptr, "must be");
820 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
821
822 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
823 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
824 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
825 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32");
826
827 break;
828 }
829
830
831 // LIR_OpLock
832 case lir_lock:
833 case lir_unlock: {
834 assert(op->as_OpLock() != nullptr, "must be");
835 LIR_OpLock* opLock = (LIR_OpLock*)op;
836
837 if (opLock->_info) do_info(opLock->_info);
838
839 // TODO: check if these operands really have to be temp
840 // (or if input is sufficient). This may have influence on the oop map!
841 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
842 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
843 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
844
845 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
846 assert(opLock->_result->is_illegal(), "unused");
847
848 do_stub(opLock->_stub);
849 do_stub(opLock->_throw_ie_stub);
850
851 break;
852 }
853
854
855 // LIR_OpDelay
856 case lir_delay_slot: {
857 assert(op->as_OpDelay() != nullptr, "must be");
858 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
859
860 visit(opDelay->delay_op());
861 break;
862 }
863
864 // LIR_OpTypeCheck
865 case lir_instanceof:
866 case lir_checkcast:
867 case lir_store_check: {
868 assert(op->as_OpTypeCheck() != nullptr, "must be");
869 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
870
871 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
872 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
873 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
874 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
875 do_temp(opTypeCheck->_object);
876 }
877 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
878 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
879 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
880 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
881 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
882 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
883 break;
884 }
885
886 // LIR_OpFlattenedArrayCheck
887 case lir_flat_array_check: {
888 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
889 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
890
891 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
892 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
893 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
894
895 do_stub(opFlattenedArrayCheck->_stub);
896
897 break;
898 }
899
900 // LIR_OpNullFreeArrayCheck
901 case lir_null_free_array_check: {
902 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
903 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
904
905 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
906 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
907 break;
908 }
909
910 // LIR_OpSubstitutabilityCheck
911 case lir_substitutability_check: {
912 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
913 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
914 do_input(opSubstitutabilityCheck->_left);
915 do_temp (opSubstitutabilityCheck->_left);
916 do_input(opSubstitutabilityCheck->_right);
917 do_temp (opSubstitutabilityCheck->_right);
918 do_input(opSubstitutabilityCheck->_equal_result);
919 do_temp (opSubstitutabilityCheck->_equal_result);
920 do_input(opSubstitutabilityCheck->_not_equal_result);
921 do_temp (opSubstitutabilityCheck->_not_equal_result);
922 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
923 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
924 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
925 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
926 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
927
928 do_info(opSubstitutabilityCheck->_info);
929 do_stub(opSubstitutabilityCheck->_stub);
930 break;
931 }
932
933 // LIR_OpCompareAndSwap
934 case lir_cas_long:
935 case lir_cas_obj:
936 case lir_cas_int: {
937 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
938 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
939
940 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
941 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
942 do_temp(opCmpAndSwap->_addr);
943 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
944 do_temp(opCmpAndSwap->_cmp_value);
945 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
946 do_temp(opCmpAndSwap->_new_value);
947 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
948 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
949 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
950
951 break;
952 }
953
954
955 // LIR_OpAllocArray;
956 case lir_alloc_array: {
957 assert(op->as_OpAllocArray() != nullptr, "must be");
958 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
959
960 if (opAllocArray->_info) do_info(opAllocArray->_info);
961 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
962 do_temp(opAllocArray->_klass);
963 }
964 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
965 do_temp(opAllocArray->_len);
966 }
967 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
968 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
969 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
970 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
971 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
972 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
973 break;
974 }
975
976 // LIR_OpLoadKlass
977 case lir_load_klass:
978 {
979 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
980 assert(opLoadKlass != nullptr, "must be");
981
982 do_input(opLoadKlass->_obj);
983 do_output(opLoadKlass->_result);
984 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
985 break;
986 }
987
988
989 // LIR_OpProfileCall:
990 case lir_profile_call: {
991 assert(op->as_OpProfileCall() != nullptr, "must be");
992 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
993
994 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
995 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
996 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
997 break;
998 }
999
1000 // LIR_OpProfileType:
1001 case lir_profile_type: {
1002 assert(op->as_OpProfileType() != nullptr, "must be");
1003 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
1004
1005 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
1006 do_input(opProfileType->_obj);
1007 do_temp(opProfileType->_tmp);
1008 break;
1009 }
1010
1011 // LIR_OpProfileInlineType:
1012 case lir_profile_inline_type: {
1013 assert(op->as_OpProfileInlineType() != nullptr, "must be");
1014 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
1015
1016 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1017 do_input(opProfileInlineType->_obj);
1018 do_temp(opProfileInlineType->_tmp);
1019 break;
1020 }
1021 default:
1022 op->visit(this);
1023 }
1024 }
1025
1026 void LIR_Op::visit(LIR_OpVisitState* state) {
1027 ShouldNotReachHere();
1028 }
1029
1030 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1031 if (stub != nullptr) {
1032 stub->visit(this);
1033 }
1034 }
1035
1036 XHandlers* LIR_OpVisitState::all_xhandler() {
1037 XHandlers* result = nullptr;
1038
1039 int i;
1040 for (i = 0; i < info_count(); i++) {
1041 if (info_at(i)->exception_handlers() != nullptr) {
1042 result = info_at(i)->exception_handlers();
1043 break;
1044 }
1045 }
1046
1047 #ifdef ASSERT
1048 for (i = 0; i < info_count(); i++) {
1049 assert(info_at(i)->exception_handlers() == nullptr ||
1050 info_at(i)->exception_handlers() == result,
1051 "only one xhandler list allowed per LIR-operation");
1052 }
1053 #endif
1054
1055 if (result != nullptr) {
1056 return result;
1057 } else {
1058 return new XHandlers();
1059 }
1060
1061 return result;
1062 }
1063
1064
1065 #ifdef ASSERT
1066 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1067 visit(op);
1068
1069 return opr_count(inputMode) == 0 &&
1070 opr_count(outputMode) == 0 &&
1071 opr_count(tempMode) == 0 &&
1072 info_count() == 0 &&
1073 !has_call() &&
1074 !has_slow_case();
1075 }
1076 #endif
1077
1078 // LIR_OpReturn
1079 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1080 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1081 _stub(nullptr) {
1082 if (VM_Version::supports_stack_watermark_barrier()) {
1083 _stub = new C1SafepointPollStub();
1084 }
1085 }
1086
1087 //---------------------------------------------------
1088
1089
1090 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1091 masm->emit_call(this);
1092 }
1093
1094 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1095 ciType* return_type = method()->return_type();
1096 if (InlineTypeReturnedAsFields) {
1097 if (return_type->is_inlinetype()) {
1098 ciInlineKlass* vk = return_type->as_inline_klass();
1099 if (vk->can_be_returned_as_fields()) {
1100 if (vk_ret != nullptr) {
1101 *vk_ret = vk;
1102 }
1103 return true;
1104 }
1105 } else if (return_type->is_instance_klass() &&
1106 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1107 StressCallingConvention)) {
1108 // An inline type might be returned from the call but we don't know its type.
1109 // This can happen with method handle intrinsics or when the return type is
1110 // not loaded (method holder is not loaded or preload attribute is missing).
1111 // If an inline type is returned, we either get an oop to a buffer and nothing
1112 // needs to be done or one of the values being returned is the klass of the
1113 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1114 // type instance of that type and initialize it with the fields values being
1115 // returned in other registers.
1116 return true;
1117 }
1118 }
1119 return false;
1120 }
1121
1122 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1123 masm->emit_rtcall(this);
1124 }
1125
1126 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1127 masm->emit_opLabel(this);
1128 }
1129
1130 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1131 masm->emit_arraycopy(this);
1132 ArrayCopyStub* code_stub = stub();
1133 if (code_stub != nullptr) {
1134 masm->append_code_stub(code_stub);
1135 }
1136 }
1137
1138 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1139 masm->emit_updatecrc32(this);
1140 }
1141
1142 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1143 masm->emit_op0(this);
1144 }
1145
1146 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1147 masm->emit_op1(this);
1148 }
1149
1150 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1151 masm->emit_alloc_obj(this);
1152 masm->append_code_stub(stub());
1153 }
1154
1155 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1156 masm->emit_opBranch(this);
1157 if (stub()) {
1158 masm->append_code_stub(stub());
1159 }
1160 }
1161
1162 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1163 masm->emit_opConvert(this);
1164 if (stub() != nullptr) {
1165 masm->append_code_stub(stub());
1166 }
1167 }
1168
1169 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1170 masm->emit_op2(this);
1171 }
1172
1173 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1174 masm->emit_alloc_array(this);
1175 masm->append_code_stub(stub());
1176 }
1177
1178 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1179 masm->emit_opTypeCheck(this);
1180 if (stub()) {
1181 masm->append_code_stub(stub());
1182 }
1183 }
1184
1185 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1186 masm->emit_opFlattenedArrayCheck(this);
1187 if (stub() != nullptr) {
1188 masm->append_code_stub(stub());
1189 }
1190 }
1191
1192 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1193 masm->emit_opNullFreeArrayCheck(this);
1194 }
1195
1196 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1197 masm->emit_opSubstitutabilityCheck(this);
1198 if (stub() != nullptr) {
1199 masm->append_code_stub(stub());
1200 }
1201 }
1202
1203 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1204 masm->emit_compare_and_swap(this);
1205 }
1206
1207 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1208 masm->emit_op3(this);
1209 }
1210
1211 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1212 masm->emit_op4(this);
1213 }
1214
1215 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1216 masm->emit_lock(this);
1217 if (stub()) {
1218 masm->append_code_stub(stub());
1219 }
1220 if (throw_ie_stub()) {
1221 masm->append_code_stub(throw_ie_stub());
1222 }
1223 }
1224
1225 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1226 masm->emit_load_klass(this);
1227 }
1228
1229 #ifdef ASSERT
1230 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1231 masm->emit_assert(this);
1232 }
1233 #endif
1234
1235 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1236 masm->emit_delay(this);
1237 }
1238
1239 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1240 masm->emit_profile_call(this);
1241 }
1242
1243 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1244 masm->emit_profile_type(this);
1245 }
1246
1247 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1248 masm->emit_profile_inline_type(this);
1249 }
1250
1251 // LIR_List
1252 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1253 : _operations(8)
1254 , _compilation(compilation)
1255 #ifndef PRODUCT
1256 , _block(block)
1257 #endif
1258 #ifdef ASSERT
1259 , _file(nullptr)
1260 , _line(0)
1261 #endif
1262 #ifdef RISCV
1263 , _cmp_opr1(LIR_OprFact::illegalOpr)
1264 , _cmp_opr2(LIR_OprFact::illegalOpr)
1265 #endif
1266 { }
1267
1268
1269 #ifdef ASSERT
1270 void LIR_List::set_file_and_line(const char * file, int line) {
1271 const char * f = strrchr(file, '/');
1272 if (f == nullptr) f = strrchr(file, '\\');
1273 if (f == nullptr) {
1274 f = file;
1275 } else {
1276 f++;
1277 }
1278 _file = f;
1279 _line = line;
1280 }
1281 #endif
1282
1283 #ifdef RISCV
1284 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1285 switch (op->code()) {
1286 case lir_cmp:
1287 _cmp_opr1 = op->as_Op2()->in_opr1();
1288 _cmp_opr2 = op->as_Op2()->in_opr2();
1289 break;
1290 case lir_branch: // fall through
1291 case lir_cond_float_branch:
1292 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1293 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1294 "conditional branches must have legal operands");
1295 if (op->as_OpBranch()->cond() != lir_cond_always) {
1296 op->as_Op2()->set_in_opr1(_cmp_opr1);
1297 op->as_Op2()->set_in_opr2(_cmp_opr2);
1298 }
1299 break;
1300 case lir_cmove:
1301 op->as_Op4()->set_in_opr3(_cmp_opr1);
1302 op->as_Op4()->set_in_opr4(_cmp_opr2);
1303 break;
1304 case lir_cas_long:
1305 case lir_cas_obj:
1306 case lir_cas_int:
1307 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr();
1308 _cmp_opr2 = LIR_OprFact::intConst(0);
1309 break;
1310 #if INCLUDE_ZGC
1311 case lir_xloadbarrier_test:
1312 _cmp_opr1 = FrameMap::as_opr(t1);
1313 _cmp_opr2 = LIR_OprFact::intConst(0);
1314 break;
1315 #endif
1316 default:
1317 break;
1318 }
1319 }
1320 #endif
1321
1322 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1323 assert(this == buffer->lir_list(), "wrong lir list");
1324 const int n = _operations.length();
1325
1326 if (buffer->number_of_ops() > 0) {
1327 // increase size of instructions list
1328 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr);
1329 // insert ops from buffer into instructions list
1330 int op_index = buffer->number_of_ops() - 1;
1331 int ip_index = buffer->number_of_insertion_points() - 1;
1332 int from_index = n - 1;
1333 int to_index = _operations.length() - 1;
1334 for (; ip_index >= 0; ip_index --) {
1335 int index = buffer->index_at(ip_index);
1336 // make room after insertion point
1337 while (index < from_index) {
1338 _operations.at_put(to_index --, _operations.at(from_index --));
1339 }
1340 // insert ops from buffer
1341 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1342 _operations.at_put(to_index --, buffer->op_at(op_index --));
1343 }
1344 }
1345 }
1346
1347 buffer->finish();
1348 }
1349
1350
1351 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1352 assert(reg->type() == T_OBJECT, "bad reg");
1353 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1354 }
1355
1356 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1357 assert(reg->type() == T_METADATA, "bad reg");
1358 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1359 }
1360
1361 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1362 append(new LIR_Op1(
1363 lir_move,
1364 LIR_OprFact::address(addr),
1365 src,
1366 addr->type(),
1367 patch_code,
1368 info));
1369 }
1370
1371
1372 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1373 append(new LIR_Op1(
1374 lir_move,
1375 LIR_OprFact::address(address),
1376 dst,
1377 address->type(),
1378 patch_code,
1379 info, lir_move_volatile));
1380 }
1381
1382 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1383 append(new LIR_Op1(
1384 lir_move,
1385 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1386 dst,
1387 type,
1388 patch_code,
1389 info, lir_move_volatile));
1390 }
1391
1392
1393 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1394 append(new LIR_Op1(
1395 lir_move,
1396 LIR_OprFact::intConst(v),
1397 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1398 type,
1399 patch_code,
1400 info));
1401 }
1402
1403
1404 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1405 append(new LIR_Op1(
1406 lir_move,
1407 LIR_OprFact::oopConst(o),
1408 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1409 type,
1410 patch_code,
1411 info));
1412 }
1413
1414
1415 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1416 append(new LIR_Op1(
1417 lir_move,
1418 src,
1419 LIR_OprFact::address(addr),
1420 addr->type(),
1421 patch_code,
1422 info));
1423 }
1424
1425
1426 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1427 append(new LIR_Op1(
1428 lir_move,
1429 src,
1430 LIR_OprFact::address(addr),
1431 addr->type(),
1432 patch_code,
1433 info,
1434 lir_move_volatile));
1435 }
1436
1437 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1438 append(new LIR_Op1(
1439 lir_move,
1440 src,
1441 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1442 type,
1443 patch_code,
1444 info, lir_move_volatile));
1445 }
1446
1447
1448 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1449 append(new LIR_Op3(
1450 lir_idiv,
1451 left,
1452 right,
1453 tmp,
1454 res,
1455 info));
1456 }
1457
1458
1459 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1460 append(new LIR_Op3(
1461 lir_idiv,
1462 left,
1463 LIR_OprFact::intConst(right),
1464 tmp,
1465 res,
1466 info));
1467 }
1468
1469
1470 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1471 append(new LIR_Op3(
1472 lir_irem,
1473 left,
1474 right,
1475 tmp,
1476 res,
1477 info));
1478 }
1479
1480
1481 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1482 append(new LIR_Op3(
1483 lir_irem,
1484 left,
1485 LIR_OprFact::intConst(right),
1486 tmp,
1487 res,
1488 info));
1489 }
1490
1491
1492 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1493 append(new LIR_Op2(
1494 lir_cmp,
1495 condition,
1496 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1497 LIR_OprFact::intConst(c),
1498 info));
1499 }
1500
1501
1502 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1503 append(new LIR_Op2(
1504 lir_cmp,
1505 condition,
1506 reg,
1507 LIR_OprFact::address(addr),
1508 info));
1509 }
1510
1511 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1512 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1513 append(new LIR_OpAllocObj(
1514 klass,
1515 dst,
1516 t1,
1517 t2,
1518 t3,
1519 t4,
1520 header_size,
1521 object_size,
1522 init_check,
1523 stub));
1524 }
1525
1526 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 is_null_free) {
1527 append(new LIR_OpAllocArray(
1528 klass,
1529 len,
1530 dst,
1531 t1,
1532 t2,
1533 t3,
1534 t4,
1535 type,
1536 stub,
1537 zero_array,
1538 is_null_free));
1539 }
1540
1541 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1542 append(new LIR_Op2(
1543 lir_shl,
1544 value,
1545 count,
1546 dst,
1547 tmp));
1548 }
1549
1550 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1551 append(new LIR_Op2(
1552 lir_shr,
1553 value,
1554 count,
1555 dst,
1556 tmp));
1557 }
1558
1559
1560 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1561 append(new LIR_Op2(
1562 lir_ushr,
1563 value,
1564 count,
1565 dst,
1566 tmp));
1567 }
1568
1569 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1570 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1571 left,
1572 right,
1573 dst));
1574 }
1575
1576 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) {
1577 append(new LIR_OpLock(
1578 lir_lock,
1579 hdr,
1580 obj,
1581 lock,
1582 scratch,
1583 stub,
1584 info,
1585 throw_ie_stub));
1586 }
1587
1588 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1589 append(new LIR_OpLock(
1590 lir_unlock,
1591 hdr,
1592 obj,
1593 lock,
1594 scratch,
1595 stub,
1596 nullptr));
1597 }
1598
1599
1600 void check_LIR() {
1601 // cannot do the proper checking as PRODUCT and other modes return different results
1602 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1603 }
1604
1605
1606
1607 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1608 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1609 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1610 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1611 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1612 // on the object.
1613 bool need_null_check = !is_null_free;
1614 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1615 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1616 need_null_check);
1617 if (profiled_method != nullptr) {
1618 c->set_profiled_method(profiled_method);
1619 c->set_profiled_bci(profiled_bci);
1620 c->set_should_profile(true);
1621 }
1622 append(c);
1623 }
1624
1625 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) {
1626 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1627 if (profiled_method != nullptr) {
1628 c->set_profiled_method(profiled_method);
1629 c->set_profiled_bci(profiled_bci);
1630 c->set_should_profile(true);
1631 }
1632 append(c);
1633 }
1634
1635
1636 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1637 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1638 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1639 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1640 if (profiled_method != nullptr) {
1641 c->set_profiled_method(profiled_method);
1642 c->set_profiled_bci(profiled_bci);
1643 c->set_should_profile(true);
1644 }
1645 append(c);
1646 }
1647
1648 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1649 if (deoptimize_on_null) {
1650 // Emit an explicit null check and deoptimize if opr is null
1651 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1652 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1653 branch(lir_cond_equal, deopt);
1654 } else {
1655 // Emit an implicit null check
1656 append(new LIR_Op1(lir_null_check, opr, info));
1657 }
1658 }
1659
1660 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1661 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1662 append(c);
1663 }
1664
1665 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1666 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1667 append(c);
1668 }
1669
1670 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1671 LIR_Opr tmp1, LIR_Opr tmp2,
1672 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1673 CodeEmitInfo* info, CodeStub* stub) {
1674 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1675 tmp1, tmp2,
1676 left_klass, right_klass, left_klass_op, right_klass_op,
1677 info, stub);
1678 append(c);
1679 }
1680
1681 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1682 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1683 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1684 }
1685
1686 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1687 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1688 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1689 }
1690
1691 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1692 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1693 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1694 }
1695
1696
1697 #ifdef PRODUCT
1698
1699 void print_LIR(BlockList* blocks) {
1700 }
1701
1702 #else
1703 // LIR_Opr
1704 void LIR_Opr::print() const {
1705 print(tty);
1706 }
1707
1708 void LIR_Opr::print(outputStream* out) const {
1709 if (is_illegal()) {
1710 return;
1711 }
1712
1713 out->print("[");
1714 if (is_pointer()) {
1715 pointer()->print_value_on(out);
1716 } else if (is_single_stack()) {
1717 out->print("stack:%d", single_stack_ix());
1718 } else if (is_double_stack()) {
1719 out->print("dbl_stack:%d",double_stack_ix());
1720 } else if (is_virtual()) {
1721 out->print("R%d", vreg_number());
1722 } else if (is_single_cpu()) {
1723 out->print("%s", as_register()->name());
1724 } else if (is_double_cpu()) {
1725 out->print("%s", as_register_hi()->name());
1726 out->print("%s", as_register_lo()->name());
1727 #if defined(X86)
1728 } else if (is_single_xmm()) {
1729 out->print("%s", as_xmm_float_reg()->name());
1730 } else if (is_double_xmm()) {
1731 out->print("%s", as_xmm_double_reg()->name());
1732 } else if (is_single_fpu()) {
1733 out->print("fpu%d", fpu_regnr());
1734 } else if (is_double_fpu()) {
1735 out->print("fpu%d", fpu_regnrLo());
1736 #elif defined(AARCH64)
1737 } else if (is_single_fpu()) {
1738 out->print("fpu%d", fpu_regnr());
1739 } else if (is_double_fpu()) {
1740 out->print("fpu%d", fpu_regnrLo());
1741 #elif defined(ARM)
1742 } else if (is_single_fpu()) {
1743 out->print("s%d", fpu_regnr());
1744 } else if (is_double_fpu()) {
1745 out->print("d%d", fpu_regnrLo() >> 1);
1746 #else
1747 } else if (is_single_fpu()) {
1748 out->print("%s", as_float_reg()->name());
1749 } else if (is_double_fpu()) {
1750 out->print("%s", as_double_reg()->name());
1751 #endif
1752
1753 } else if (is_illegal()) {
1754 out->print("-");
1755 } else {
1756 out->print("Unknown Operand");
1757 }
1758 if (!is_illegal()) {
1759 out->print("|%c", type_char());
1760 }
1761 if (is_register() && is_last_use()) {
1762 out->print("(last_use)");
1763 }
1764 out->print("]");
1765 }
1766
1767
1768 // LIR_Address
1769 void LIR_Const::print_value_on(outputStream* out) const {
1770 switch (type()) {
1771 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1772 case T_INT: out->print("int:%d", as_jint()); break;
1773 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1774 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1775 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1776 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1777 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1778 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1779 }
1780 }
1781
1782 // LIR_Address
1783 void LIR_Address::print_value_on(outputStream* out) const {
1784 out->print("Base:"); _base->print(out);
1785 if (!_index->is_illegal()) {
1786 out->print(" Index:"); _index->print(out);
1787 switch (scale()) {
1788 case times_1: break;
1789 case times_2: out->print(" * 2"); break;
1790 case times_4: out->print(" * 4"); break;
1791 case times_8: out->print(" * 8"); break;
1792 }
1793 }
1794 out->print(" Disp: %zd", _disp);
1795 }
1796
1797 // debug output of block header without InstructionPrinter
1798 // (because phi functions are not necessary for LIR)
1799 static void print_block(BlockBegin* x) {
1800 // print block id
1801 BlockEnd* end = x->end();
1802 tty->print("B%d ", x->block_id());
1803
1804 // print flags
1805 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1806 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1807 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1808 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1809 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1810 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1811 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1812
1813 // print block bci range
1814 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci()));
1815
1816 // print predecessors and successors
1817 if (x->number_of_preds() > 0) {
1818 tty->print("preds: ");
1819 for (int i = 0; i < x->number_of_preds(); i ++) {
1820 tty->print("B%d ", x->pred_at(i)->block_id());
1821 }
1822 }
1823
1824 if (end != nullptr && x->number_of_sux() > 0) {
1825 tty->print("sux: ");
1826 for (int i = 0; i < x->number_of_sux(); i ++) {
1827 tty->print("B%d ", x->sux_at(i)->block_id());
1828 }
1829 }
1830
1831 // print exception handlers
1832 if (x->number_of_exception_handlers() > 0) {
1833 tty->print("xhandler: ");
1834 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1835 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1836 }
1837 }
1838
1839 tty->cr();
1840 }
1841
1842 void print_LIR(BlockList* blocks) {
1843 tty->print_cr("LIR:");
1844 int i;
1845 for (i = 0; i < blocks->length(); i++) {
1846 BlockBegin* bb = blocks->at(i);
1847 print_block(bb);
1848 tty->print("__id_Instruction___________________________________________"); tty->cr();
1849 bb->lir()->print_instructions();
1850 }
1851 }
1852
1853 void LIR_List::print_instructions() {
1854 for (int i = 0; i < _operations.length(); i++) {
1855 _operations.at(i)->print(); tty->cr();
1856 }
1857 tty->cr();
1858 }
1859
1860 // LIR_Ops printing routines
1861 // LIR_Op
1862 void LIR_Op::print_on(outputStream* out) const {
1863 if (id() != -1 || PrintCFGToFile) {
1864 out->print("%4d ", id());
1865 } else {
1866 out->print(" ");
1867 }
1868 out->print("%s ", name());
1869 print_instr(out);
1870 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci());
1871 #ifdef ASSERT
1872 if (Verbose && _file != nullptr) {
1873 out->print(" (%s:%d)", _file, _line);
1874 }
1875 #endif
1876 }
1877
1878 const char * LIR_Op::name() const {
1879 const char* s = nullptr;
1880 switch(code()) {
1881 // LIR_Op0
1882 case lir_membar: s = "membar"; break;
1883 case lir_membar_acquire: s = "membar_acquire"; break;
1884 case lir_membar_release: s = "membar_release"; break;
1885 case lir_membar_loadload: s = "membar_loadload"; break;
1886 case lir_membar_storestore: s = "membar_storestore"; break;
1887 case lir_membar_loadstore: s = "membar_loadstore"; break;
1888 case lir_membar_storeload: s = "membar_storeload"; break;
1889 case lir_label: s = "label"; break;
1890 case lir_nop: s = "nop"; break;
1891 case lir_on_spin_wait: s = "on_spin_wait"; break;
1892 case lir_std_entry: s = "std_entry"; break;
1893 case lir_osr_entry: s = "osr_entry"; break;
1894 case lir_fpop_raw: s = "fpop_raw"; break;
1895 case lir_breakpoint: s = "breakpoint"; break;
1896 case lir_get_thread: s = "get_thread"; break;
1897 case lir_check_orig_pc: s = "check_orig_pc"; break;
1898 // LIR_Op1
1899 case lir_fxch: s = "fxch"; break;
1900 case lir_fld: s = "fld"; break;
1901 case lir_push: s = "push"; break;
1902 case lir_pop: s = "pop"; break;
1903 case lir_null_check: s = "null_check"; break;
1904 case lir_return: s = "return"; break;
1905 case lir_safepoint: s = "safepoint"; break;
1906 case lir_leal: s = "leal"; break;
1907 case lir_branch: s = "branch"; break;
1908 case lir_cond_float_branch: s = "flt_cond_br"; break;
1909 case lir_move: s = "move"; break;
1910 case lir_roundfp: s = "roundfp"; break;
1911 case lir_abs: s = "abs"; break;
1912 case lir_neg: s = "neg"; break;
1913 case lir_sqrt: s = "sqrt"; break;
1914 case lir_f2hf: s = "f2hf"; break;
1915 case lir_hf2f: s = "hf2f"; break;
1916 case lir_rtcall: s = "rtcall"; break;
1917 case lir_throw: s = "throw"; break;
1918 case lir_unwind: s = "unwind"; break;
1919 case lir_convert: s = "convert"; break;
1920 case lir_alloc_object: s = "alloc_obj"; break;
1921 case lir_monaddr: s = "mon_addr"; break;
1922 // LIR_Op2
1923 case lir_cmp: s = "cmp"; break;
1924 case lir_cmp_l2i: s = "cmp_l2i"; break;
1925 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1926 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1927 case lir_add: s = "add"; break;
1928 case lir_sub: s = "sub"; break;
1929 case lir_mul: s = "mul"; break;
1930 case lir_div: s = "div"; break;
1931 case lir_rem: s = "rem"; break;
1932 case lir_logic_and: s = "logic_and"; break;
1933 case lir_logic_or: s = "logic_or"; break;
1934 case lir_logic_xor: s = "logic_xor"; break;
1935 case lir_shl: s = "shift_left"; break;
1936 case lir_shr: s = "shift_right"; break;
1937 case lir_ushr: s = "ushift_right"; break;
1938 case lir_alloc_array: s = "alloc_array"; break;
1939 case lir_xadd: s = "xadd"; break;
1940 case lir_xchg: s = "xchg"; break;
1941 // LIR_Op3
1942 case lir_idiv: s = "idiv"; break;
1943 case lir_irem: s = "irem"; break;
1944 case lir_fmad: s = "fmad"; break;
1945 case lir_fmaf: s = "fmaf"; break;
1946 // LIR_Op4
1947 case lir_cmove: s = "cmove"; break;
1948 // LIR_OpJavaCall
1949 case lir_static_call: s = "static"; break;
1950 case lir_optvirtual_call: s = "optvirtual"; break;
1951 case lir_icvirtual_call: s = "icvirtual"; break;
1952 case lir_dynamic_call: s = "dynamic"; break;
1953 // LIR_OpArrayCopy
1954 case lir_arraycopy: s = "arraycopy"; break;
1955 // LIR_OpUpdateCRC32
1956 case lir_updatecrc32: s = "updatecrc32"; break;
1957 // LIR_OpLock
1958 case lir_lock: s = "lock"; break;
1959 case lir_unlock: s = "unlock"; break;
1960 // LIR_OpDelay
1961 case lir_delay_slot: s = "delay"; break;
1962 // LIR_OpTypeCheck
1963 case lir_instanceof: s = "instanceof"; break;
1964 case lir_checkcast: s = "checkcast"; break;
1965 case lir_store_check: s = "store_check"; break;
1966 // LIR_OpFlattenedArrayCheck
1967 case lir_flat_array_check: s = "flat_array_check"; break;
1968 // LIR_OpNullFreeArrayCheck
1969 case lir_null_free_array_check: s = "null_free_array_check"; break;
1970 // LIR_OpSubstitutabilityCheck
1971 case lir_substitutability_check: s = "substitutability_check"; break;
1972 // LIR_OpCompareAndSwap
1973 case lir_cas_long: s = "cas_long"; break;
1974 case lir_cas_obj: s = "cas_obj"; break;
1975 case lir_cas_int: s = "cas_int"; break;
1976 // LIR_OpProfileCall
1977 case lir_profile_call: s = "profile_call"; break;
1978 // LIR_OpProfileType
1979 case lir_profile_type: s = "profile_type"; break;
1980 // LIR_OpProfileInlineType
1981 case lir_profile_inline_type: s = "profile_inline_type"; break;
1982 // LIR_OpAssert
1983 #ifdef ASSERT
1984 case lir_assert: s = "assert"; break;
1985 #endif
1986 case lir_none: ShouldNotReachHere();break;
1987 default: s = "illegal_op"; break;
1988 }
1989 return s;
1990 }
1991
1992 // LIR_OpJavaCall
1993 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1994 out->print("call: ");
1995 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1996 if (receiver()->is_valid()) {
1997 out->print(" [recv: "); receiver()->print(out); out->print("]");
1998 }
1999 if (result_opr()->is_valid()) {
2000 out->print(" [result: "); result_opr()->print(out); out->print("]");
2001 }
2002 }
2003
2004 // LIR_OpLabel
2005 void LIR_OpLabel::print_instr(outputStream* out) const {
2006 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
2007 }
2008
2009 // LIR_OpArrayCopy
2010 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
2011 src()->print(out); out->print(" ");
2012 src_pos()->print(out); out->print(" ");
2013 dst()->print(out); out->print(" ");
2014 dst_pos()->print(out); out->print(" ");
2015 length()->print(out); out->print(" ");
2016 tmp()->print(out); out->print(" ");
2017 }
2018
2019 // LIR_OpUpdateCRC32
2020 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
2021 crc()->print(out); out->print(" ");
2022 val()->print(out); out->print(" ");
2023 result_opr()->print(out); out->print(" ");
2024 }
2025
2026 // LIR_OpCompareAndSwap
2027 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
2028 addr()->print(out); out->print(" ");
2029 cmp_value()->print(out); out->print(" ");
2030 new_value()->print(out); out->print(" ");
2031 tmp1()->print(out); out->print(" ");
2032 tmp2()->print(out); out->print(" ");
2033
2034 }
2035
2036 // LIR_Op0
2037 void LIR_Op0::print_instr(outputStream* out) const {
2038 result_opr()->print(out);
2039 }
2040
2041 // LIR_Op1
2042 const char * LIR_Op1::name() const {
2043 if (code() == lir_move) {
2044 switch (move_kind()) {
2045 case lir_move_normal:
2046 return "move";
2047 case lir_move_volatile:
2048 return "volatile_move";
2049 case lir_move_wide:
2050 return "wide_move";
2051 default:
2052 ShouldNotReachHere();
2053 return "illegal_op";
2054 }
2055 } else {
2056 return LIR_Op::name();
2057 }
2058 }
2059
2060
2061 void LIR_Op1::print_instr(outputStream* out) const {
2062 _opr->print(out); out->print(" ");
2063 result_opr()->print(out); out->print(" ");
2064 print_patch_code(out, patch_code());
2065 }
2066
2067
2068 // LIR_Op1
2069 void LIR_OpRTCall::print_instr(outputStream* out) const {
2070 intx a = (intx)addr();
2071 out->print("%s", Runtime1::name_for_address(addr()));
2072 out->print(" ");
2073 tmp()->print(out);
2074 }
2075
2076 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2077 switch(code) {
2078 case lir_patch_none: break;
2079 case lir_patch_low: out->print("[patch_low]"); break;
2080 case lir_patch_high: out->print("[patch_high]"); break;
2081 case lir_patch_normal: out->print("[patch_normal]"); break;
2082 default: ShouldNotReachHere();
2083 }
2084 }
2085
2086 // LIR_OpBranch
2087 void LIR_OpBranch::print_instr(outputStream* out) const {
2088 print_condition(out, cond()); out->print(" ");
2089 in_opr1()->print(out); out->print(" ");
2090 in_opr2()->print(out); out->print(" ");
2091 if (block() != nullptr) {
2092 out->print("[B%d] ", block()->block_id());
2093 } else if (stub() != nullptr) {
2094 out->print("[");
2095 stub()->print_name(out);
2096 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2097 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2098 } else {
2099 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2100 }
2101 if (ublock() != nullptr) {
2102 out->print("unordered: [B%d] ", ublock()->block_id());
2103 }
2104 }
2105
2106 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2107 switch(cond) {
2108 case lir_cond_equal: out->print("[EQ]"); break;
2109 case lir_cond_notEqual: out->print("[NE]"); break;
2110 case lir_cond_less: out->print("[LT]"); break;
2111 case lir_cond_lessEqual: out->print("[LE]"); break;
2112 case lir_cond_greaterEqual: out->print("[GE]"); break;
2113 case lir_cond_greater: out->print("[GT]"); break;
2114 case lir_cond_belowEqual: out->print("[BE]"); break;
2115 case lir_cond_aboveEqual: out->print("[AE]"); break;
2116 case lir_cond_always: out->print("[AL]"); break;
2117 default: out->print("[%d]",cond); break;
2118 }
2119 }
2120
2121 // LIR_OpConvert
2122 void LIR_OpConvert::print_instr(outputStream* out) const {
2123 print_bytecode(out, bytecode());
2124 in_opr()->print(out); out->print(" ");
2125 result_opr()->print(out); out->print(" ");
2126 }
2127
2128 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2129 switch(code) {
2130 case Bytecodes::_d2f: out->print("[d2f] "); break;
2131 case Bytecodes::_d2i: out->print("[d2i] "); break;
2132 case Bytecodes::_d2l: out->print("[d2l] "); break;
2133 case Bytecodes::_f2d: out->print("[f2d] "); break;
2134 case Bytecodes::_f2i: out->print("[f2i] "); break;
2135 case Bytecodes::_f2l: out->print("[f2l] "); break;
2136 case Bytecodes::_i2b: out->print("[i2b] "); break;
2137 case Bytecodes::_i2c: out->print("[i2c] "); break;
2138 case Bytecodes::_i2d: out->print("[i2d] "); break;
2139 case Bytecodes::_i2f: out->print("[i2f] "); break;
2140 case Bytecodes::_i2l: out->print("[i2l] "); break;
2141 case Bytecodes::_i2s: out->print("[i2s] "); break;
2142 case Bytecodes::_l2i: out->print("[l2i] "); break;
2143 case Bytecodes::_l2f: out->print("[l2f] "); break;
2144 case Bytecodes::_l2d: out->print("[l2d] "); break;
2145 default:
2146 out->print("[?%d]",code);
2147 break;
2148 }
2149 }
2150
2151 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2152 klass()->print(out); out->print(" ");
2153 obj()->print(out); out->print(" ");
2154 tmp1()->print(out); out->print(" ");
2155 tmp2()->print(out); out->print(" ");
2156 tmp3()->print(out); out->print(" ");
2157 tmp4()->print(out); out->print(" ");
2158 out->print("[hdr:%d]", header_size()); out->print(" ");
2159 out->print("[obj:%d]", object_size()); out->print(" ");
2160 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2161 }
2162
2163 void LIR_OpRoundFP::print_instr(outputStream* out) const {
2164 _opr->print(out); out->print(" ");
2165 tmp()->print(out); out->print(" ");
2166 result_opr()->print(out); out->print(" ");
2167 }
2168
2169 // LIR_Op2
2170 void LIR_Op2::print_instr(outputStream* out) const {
2171 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2172 print_condition(out, condition()); out->print(" ");
2173 }
2174 in_opr1()->print(out); out->print(" ");
2175 in_opr2()->print(out); out->print(" ");
2176 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2177 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2178 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2179 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2180 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2181 result_opr()->print(out);
2182 }
2183
2184 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2185 klass()->print(out); out->print(" ");
2186 len()->print(out); out->print(" ");
2187 obj()->print(out); out->print(" ");
2188 tmp1()->print(out); out->print(" ");
2189 tmp2()->print(out); out->print(" ");
2190 tmp3()->print(out); out->print(" ");
2191 tmp4()->print(out); out->print(" ");
2192 out->print("[type:0x%x]", type()); out->print(" ");
2193 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2194 }
2195
2196
2197 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2198 object()->print(out); out->print(" ");
2199 if (code() == lir_store_check) {
2200 array()->print(out); out->print(" ");
2201 }
2202 if (code() != lir_store_check) {
2203 klass()->print_name_on(out); out->print(" ");
2204 if (fast_check()) out->print("fast_check ");
2205 }
2206 tmp1()->print(out); out->print(" ");
2207 tmp2()->print(out); out->print(" ");
2208 tmp3()->print(out); out->print(" ");
2209 result_opr()->print(out); out->print(" ");
2210 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2211 }
2212
2213 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2214 array()->print(out); out->print(" ");
2215 value()->print(out); out->print(" ");
2216 tmp()->print(out); out->print(" ");
2217 if (stub() != nullptr) {
2218 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2219 }
2220 }
2221
2222 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2223 array()->print(out); out->print(" ");
2224 tmp()->print(out); out->print(" ");
2225 }
2226
2227 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2228 result_opr()->print(out); out->print(" ");
2229 left()->print(out); out->print(" ");
2230 right()->print(out); out->print(" ");
2231 equal_result()->print(out); out->print(" ");
2232 not_equal_result()->print(out); out->print(" ");
2233 tmp1()->print(out); out->print(" ");
2234 tmp2()->print(out); out->print(" ");
2235 if (left_klass() == nullptr) {
2236 out->print("unknown ");
2237 } else {
2238 left_klass()->print(out); out->print(" ");
2239 }
2240 if (right_klass() == nullptr) {
2241 out->print("unknown ");
2242 } else {
2243 right_klass()->print(out); out->print(" ");
2244 }
2245 left_klass_op()->print(out); out->print(" ");
2246 right_klass_op()->print(out); out->print(" ");
2247 if (stub() != nullptr) {
2248 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2249 }
2250 }
2251
2252 // LIR_Op3
2253 void LIR_Op3::print_instr(outputStream* out) const {
2254 in_opr1()->print(out); out->print(" ");
2255 in_opr2()->print(out); out->print(" ");
2256 in_opr3()->print(out); out->print(" ");
2257 result_opr()->print(out);
2258 }
2259
2260 // LIR_Op4
2261 void LIR_Op4::print_instr(outputStream* out) const {
2262 print_condition(out, condition()); out->print(" ");
2263 in_opr1()->print(out); out->print(" ");
2264 in_opr2()->print(out); out->print(" ");
2265 in_opr3()->print(out); out->print(" ");
2266 in_opr4()->print(out); out->print(" ");
2267 result_opr()->print(out);
2268 }
2269
2270 void LIR_OpLock::print_instr(outputStream* out) const {
2271 hdr_opr()->print(out); out->print(" ");
2272 obj_opr()->print(out); out->print(" ");
2273 lock_opr()->print(out); out->print(" ");
2274 if (_scratch->is_valid()) {
2275 _scratch->print(out); out->print(" ");
2276 }
2277 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2278 }
2279
2280 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2281 obj()->print(out); out->print(" ");
2282 result_opr()->print(out); out->print(" ");
2283 }
2284
2285 #ifdef ASSERT
2286 void LIR_OpAssert::print_instr(outputStream* out) const {
2287 print_condition(out, condition()); out->print(" ");
2288 in_opr1()->print(out); out->print(" ");
2289 in_opr2()->print(out); out->print(", \"");
2290 out->print("%s", msg()); out->print("\"");
2291 }
2292 #endif
2293
2294
2295 void LIR_OpDelay::print_instr(outputStream* out) const {
2296 _op->print_on(out);
2297 }
2298
2299
2300 // LIR_OpProfileCall
2301 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2302 profiled_method()->name()->print_symbol_on(out);
2303 out->print(".");
2304 profiled_method()->holder()->name()->print_symbol_on(out);
2305 out->print(" @ %d ", profiled_bci());
2306 mdo()->print(out); out->print(" ");
2307 recv()->print(out); out->print(" ");
2308 tmp1()->print(out); out->print(" ");
2309 }
2310
2311 // LIR_OpProfileType
2312 void LIR_OpProfileType::print_instr(outputStream* out) const {
2313 out->print("exact = ");
2314 if (exact_klass() == nullptr) {
2315 out->print("unknown");
2316 } else {
2317 exact_klass()->print_name_on(out);
2318 }
2319 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2320 out->print(" ");
2321 mdp()->print(out); out->print(" ");
2322 obj()->print(out); out->print(" ");
2323 tmp()->print(out); out->print(" ");
2324 }
2325
2326 // LIR_OpProfileInlineType
2327 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2328 out->print(" flag = %x ", flag());
2329 mdp()->print(out); out->print(" ");
2330 obj()->print(out); out->print(" ");
2331 tmp()->print(out); out->print(" ");
2332 }
2333
2334 #endif // PRODUCT
2335
2336 // Implementation of LIR_InsertionBuffer
2337
2338 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2339 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2340
2341 int i = number_of_insertion_points() - 1;
2342 if (i < 0 || index_at(i) < index) {
2343 append_new(index, 1);
2344 } else {
2345 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2346 assert(count_at(i) > 0, "check");
2347 set_count_at(i, count_at(i) + 1);
2348 }
2349 _ops.push(op);
2350
2351 DEBUG_ONLY(verify());
2352 }
2353
2354 #ifdef ASSERT
2355 void LIR_InsertionBuffer::verify() {
2356 int sum = 0;
2357 int prev_idx = -1;
2358
2359 for (int i = 0; i < number_of_insertion_points(); i++) {
2360 assert(prev_idx < index_at(i), "index must be ordered ascending");
2361 sum += count_at(i);
2362 }
2363 assert(sum == number_of_ops(), "wrong total sum");
2364 }
2365 #endif