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_breakpoint: // result and info always invalid
441 case lir_membar: // result and info always invalid
442 case lir_membar_acquire: // result and info always invalid
443 case lir_membar_release: // result and info always invalid
444 case lir_membar_loadload: // result and info always invalid
445 case lir_membar_storestore: // result and info always invalid
446 case lir_membar_loadstore: // result and info always invalid
447 case lir_membar_storeload: // result and info always invalid
448 case lir_check_orig_pc: // result and info always invalid
449 case lir_on_spin_wait:
450 {
451 assert(op->as_Op0() != nullptr, "must be");
452 assert(op->_info == nullptr, "info not used by this instruction");
453 assert(op->_result->is_illegal(), "not used");
454 break;
455 }
456
457 case lir_nop: // may have info, result always invalid
458 case lir_std_entry: // may have result, info always invalid
459 case lir_osr_entry: // may have result, info always invalid
460 case lir_get_thread: // may have result, info always invalid
461 {
462 assert(op->as_Op0() != nullptr, "must be");
463 if (op->_info != nullptr) do_info(op->_info);
464 if (op->_result->is_valid()) do_output(op->_result);
465 break;
466 }
467
468
469 // LIR_OpLabel
470 case lir_label: // result and info always invalid
471 {
472 assert(op->as_OpLabel() != nullptr, "must be");
473 assert(op->_info == nullptr, "info not used by this instruction");
474 assert(op->_result->is_illegal(), "not used");
475 break;
476 }
477
478
479 // LIR_Op1
480 case lir_push: // input always valid, result and info always invalid
481 case lir_pop: // input always valid, result and info always invalid
482 case lir_leal: // input and result always valid, info always invalid
483 case lir_monaddr: // input and result always valid, info always invalid
484 case lir_null_check: // input and info always valid, result always invalid
485 case lir_move: // input and result always valid, may have info
486 case lir_sqrt: // FP Ops have no info, but input and result
487 case lir_abs:
488 case lir_neg:
489 case lir_f2hf:
490 case lir_hf2f:
491 {
492 assert(op->as_Op1() != nullptr, "must be");
493 LIR_Op1* op1 = (LIR_Op1*)op;
494
495 if (op1->_info) do_info(op1->_info);
496 if (op1->_opr->is_valid()) do_input(op1->_opr);
497 if (op1->_tmp->is_valid()) do_temp(op1->_tmp);
498 if (op1->_result->is_valid()) do_output(op1->_result);
499
500 break;
501 }
502
503 case lir_return:
504 {
505 assert(op->as_OpReturn() != nullptr, "must be");
506 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
507
508 if (op_ret->_info) do_info(op_ret->_info);
509 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
510 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
511 if (op_ret->stub() != nullptr) do_stub(op_ret->stub());
512
513 break;
514 }
515
516 case lir_safepoint:
517 {
518 assert(op->as_Op1() != nullptr, "must be");
519 LIR_Op1* op1 = (LIR_Op1*)op;
520
521 assert(op1->_info != nullptr, ""); do_info(op1->_info);
522 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
523 assert(op1->_tmp->is_illegal(), "not used");
524 assert(op1->_result->is_illegal(), "safepoint does not produce value");
525
526 break;
527 }
528
529 // LIR_OpConvert;
530 case lir_convert: // input and result always valid, info always invalid
531 {
532 assert(op->as_OpConvert() != nullptr, "must be");
533 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
534
535 assert(opConvert->_info == nullptr, "must be");
536 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
537 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
538 do_stub(opConvert->_stub);
539
540 break;
541 }
542
543 // LIR_OpBranch;
544 case lir_branch: // may have info, input and result register always invalid
545 case lir_cond_float_branch: // may have info, input and result register always invalid
546 {
547 assert(op->as_OpBranch() != nullptr, "must be");
548 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
549
550 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() &&
551 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() &&
552 opBranch->_tmp5->is_illegal(), "not used");
553
554 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1);
555 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2);
556
557 if (opBranch->_info != nullptr) do_info(opBranch->_info);
558 assert(opBranch->_result->is_illegal(), "not used");
559 if (opBranch->_stub != nullptr) opBranch->stub()->visit(this);
560
561 break;
562 }
563
564
565 // LIR_OpAllocObj
566 case lir_alloc_object:
567 {
568 assert(op->as_OpAllocObj() != nullptr, "must be");
569 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
570
571 if (opAllocObj->_info) do_info(opAllocObj->_info);
572 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
573 do_temp(opAllocObj->_opr);
574 }
575 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
576 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
577 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
578 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
579 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
580 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub);
581 break;
582 }
583
584
585 // LIR_Op2
586 case lir_cmp:
587 case lir_cmp_l2i:
588 case lir_ucmp_fd2i:
589 case lir_cmp_fd2i:
590 case lir_add:
591 case lir_sub:
592 case lir_rem:
593 case lir_logic_and:
594 case lir_logic_or:
595 case lir_logic_xor:
596 case lir_shl:
597 case lir_shr:
598 case lir_ushr:
599 case lir_xadd:
600 case lir_xchg:
601 case lir_assert:
602 {
603 assert(op->as_Op2() != nullptr, "must be");
604 LIR_Op2* op2 = (LIR_Op2*)op;
605 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
606 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
607
608 if (op2->_info) do_info(op2->_info);
609 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
610 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
611 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
612 if (op2->_result->is_valid()) do_output(op2->_result);
613 if (op->code() == lir_xchg || op->code() == lir_xadd) {
614 // on ARM and PPC, return value is loaded first so could
615 // destroy inputs. On other platforms that implement those
616 // (x86, sparc), the extra constrainsts are harmless.
617 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
618 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
619 }
620
621 break;
622 }
623
624 // special handling for cmove: right input operand must not be equal
625 // to the result operand, otherwise the backend fails
626 case lir_cmove:
627 {
628 assert(op->as_Op4() != nullptr, "must be");
629 LIR_Op4* op4 = (LIR_Op4*)op;
630
631 assert(op4->_info == nullptr && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() &&
632 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used");
633 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used");
634
635 do_input(op4->_opr1);
636 do_input(op4->_opr2);
637 if (op4->_opr3->is_valid()) do_input(op4->_opr3);
638 if (op4->_opr4->is_valid()) do_input(op4->_opr4);
639 do_temp(op4->_opr2);
640 do_output(op4->_result);
641
642 break;
643 }
644
645 // vspecial handling for strict operations: register input operands
646 // as temp to guarantee that they do not overlap with other
647 // registers
648 case lir_mul:
649 case lir_div:
650 {
651 assert(op->as_Op2() != nullptr, "must be");
652 LIR_Op2* op2 = (LIR_Op2*)op;
653
654 assert(op2->_info == nullptr, "not used");
655 assert(op2->_opr1->is_valid(), "used");
656 assert(op2->_opr2->is_valid(), "used");
657 assert(op2->_result->is_valid(), "used");
658 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
659 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
660
661 do_input(op2->_opr1); do_temp(op2->_opr1);
662 do_input(op2->_opr2); do_temp(op2->_opr2);
663 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
664 do_output(op2->_result);
665
666 break;
667 }
668
669 case lir_throw: {
670 assert(op->as_Op2() != nullptr, "must be");
671 LIR_Op2* op2 = (LIR_Op2*)op;
672
673 if (op2->_info) do_info(op2->_info);
674 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
675 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
676 assert(op2->_result->is_illegal(), "no result");
677 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
678 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
679
680 break;
681 }
682
683 case lir_unwind: {
684 assert(op->as_Op1() != nullptr, "must be");
685 LIR_Op1* op1 = (LIR_Op1*)op;
686
687 assert(op1->_info == nullptr, "no info");
688 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
689 assert(op1->_tmp->is_illegal(), "not used");
690 assert(op1->_result->is_illegal(), "no result");
691
692 break;
693 }
694
695 // LIR_Op3
696 case lir_idiv:
697 case lir_irem: {
698 assert(op->as_Op3() != nullptr, "must be");
699 LIR_Op3* op3= (LIR_Op3*)op;
700
701 if (op3->_info) do_info(op3->_info);
702 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
703
704 // second operand is input and temp, so ensure that second operand
705 // and third operand get not the same register
706 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
707 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
708 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
709
710 if (op3->_result->is_valid()) do_output(op3->_result);
711
712 break;
713 }
714
715 case lir_fmad:
716 case lir_fmaf: {
717 assert(op->as_Op3() != nullptr, "must be");
718 LIR_Op3* op3= (LIR_Op3*)op;
719 assert(op3->_info == nullptr, "no info");
720 do_input(op3->_opr1);
721 do_input(op3->_opr2);
722 do_input(op3->_opr3);
723 do_output(op3->_result);
724 break;
725 }
726
727 // LIR_OpJavaCall
728 case lir_static_call:
729 case lir_optvirtual_call:
730 case lir_icvirtual_call:
731 case lir_dynamic_call: {
732 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
733 assert(opJavaCall != nullptr, "must be");
734
735 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
736
737 // only visit register parameters
738 int n = opJavaCall->_arguments->length();
739 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
740 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
741 do_input(*opJavaCall->_arguments->adr_at(i));
742 }
743 }
744
745 if (opJavaCall->_info) do_info(opJavaCall->_info);
746 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
747 opJavaCall->is_method_handle_invoke()) {
748 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
749 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
750 }
751 do_call();
752 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
753
754 break;
755 }
756
757
758 // LIR_OpRTCall
759 case lir_rtcall: {
760 assert(op->as_OpRTCall() != nullptr, "must be");
761 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
762
763 // only visit register parameters
764 int n = opRTCall->_arguments->length();
765 for (int i = 0; i < n; i++) {
766 if (!opRTCall->_arguments->at(i)->is_pointer()) {
767 do_input(*opRTCall->_arguments->adr_at(i));
768 }
769 }
770 if (opRTCall->_info) do_info(opRTCall->_info);
771 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
772 do_call();
773 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
774
775 break;
776 }
777
778
779 // LIR_OpArrayCopy
780 case lir_arraycopy: {
781 assert(op->as_OpArrayCopy() != nullptr, "must be");
782 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
783
784 assert(opArrayCopy->_result->is_illegal(), "unused");
785 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
786 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
787 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
788 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
789 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
790 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
791 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
792
793 // the implementation of arraycopy always has a call into the runtime
794 do_call();
795
796 break;
797 }
798
799
800 // LIR_OpUpdateCRC32
801 case lir_updatecrc32: {
802 assert(op->as_OpUpdateCRC32() != nullptr, "must be");
803 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
804
805 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
806 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
807 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
808 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32");
809
810 break;
811 }
812
813
814 // LIR_OpLock
815 case lir_lock:
816 case lir_unlock: {
817 assert(op->as_OpLock() != nullptr, "must be");
818 LIR_OpLock* opLock = (LIR_OpLock*)op;
819
820 if (opLock->_info) do_info(opLock->_info);
821
822 // TODO: check if these operands really have to be temp
823 // (or if input is sufficient). This may have influence on the oop map!
824 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
825 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
826 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
827
828 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
829 assert(opLock->_result->is_illegal(), "unused");
830
831 do_stub(opLock->_stub);
832 do_stub(opLock->_throw_ie_stub);
833
834 break;
835 }
836
837
838 // LIR_OpDelay
839 case lir_delay_slot: {
840 assert(op->as_OpDelay() != nullptr, "must be");
841 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
842
843 visit(opDelay->delay_op());
844 break;
845 }
846
847 // LIR_OpTypeCheck
848 case lir_instanceof:
849 case lir_checkcast:
850 case lir_store_check: {
851 assert(op->as_OpTypeCheck() != nullptr, "must be");
852 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
853
854 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
855 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
856 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
857 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
858 do_temp(opTypeCheck->_object);
859 }
860 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
861 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
862 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
863 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
864 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
865 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
866 break;
867 }
868
869 // LIR_OpFlattenedArrayCheck
870 case lir_flat_array_check: {
871 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
872 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
873
874 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
875 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
876 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
877
878 do_stub(opFlattenedArrayCheck->_stub);
879
880 break;
881 }
882
883 // LIR_OpNullFreeArrayCheck
884 case lir_null_free_array_check: {
885 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
886 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
887
888 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
889 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
890 break;
891 }
892
893 // LIR_OpSubstitutabilityCheck
894 case lir_substitutability_check: {
895 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
896 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
897 do_input(opSubstitutabilityCheck->_left);
898 do_temp (opSubstitutabilityCheck->_left);
899 do_input(opSubstitutabilityCheck->_right);
900 do_temp (opSubstitutabilityCheck->_right);
901 do_input(opSubstitutabilityCheck->_equal_result);
902 do_temp (opSubstitutabilityCheck->_equal_result);
903 do_input(opSubstitutabilityCheck->_not_equal_result);
904 do_temp (opSubstitutabilityCheck->_not_equal_result);
905 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
906 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
907 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
908 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
909 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
910
911 do_info(opSubstitutabilityCheck->_info);
912 do_stub(opSubstitutabilityCheck->_stub);
913 break;
914 }
915
916 // LIR_OpCompareAndSwap
917 case lir_cas_long:
918 case lir_cas_obj:
919 case lir_cas_int: {
920 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
921 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
922
923 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
924 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
925 do_temp(opCmpAndSwap->_addr);
926 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
927 do_temp(opCmpAndSwap->_cmp_value);
928 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
929 do_temp(opCmpAndSwap->_new_value);
930 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
931 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
932 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
933
934 break;
935 }
936
937
938 // LIR_OpAllocArray;
939 case lir_alloc_array: {
940 assert(op->as_OpAllocArray() != nullptr, "must be");
941 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
942
943 if (opAllocArray->_info) do_info(opAllocArray->_info);
944 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
945 do_temp(opAllocArray->_klass);
946 }
947 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
948 do_temp(opAllocArray->_len);
949 }
950 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
951 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
952 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
953 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
954 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
955 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
956 break;
957 }
958
959 // LIR_OpLoadKlass
960 case lir_load_klass:
961 {
962 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
963 assert(opLoadKlass != nullptr, "must be");
964
965 do_input(opLoadKlass->_obj);
966 do_output(opLoadKlass->_result);
967 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
968 break;
969 }
970
971
972 // LIR_OpProfileCall:
973 case lir_profile_call: {
974 assert(op->as_OpProfileCall() != nullptr, "must be");
975 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
976
977 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
978 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
979 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
980 break;
981 }
982
983 // LIR_OpProfileType:
984 case lir_profile_type: {
985 assert(op->as_OpProfileType() != nullptr, "must be");
986 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
987
988 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
989 do_input(opProfileType->_obj);
990 do_temp(opProfileType->_tmp);
991 break;
992 }
993
994 // LIR_OpProfileInlineType:
995 case lir_profile_inline_type: {
996 assert(op->as_OpProfileInlineType() != nullptr, "must be");
997 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
998
999 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1000 do_input(opProfileInlineType->_obj);
1001 do_temp(opProfileInlineType->_tmp);
1002 break;
1003 }
1004 default:
1005 op->visit(this);
1006 }
1007 }
1008
1009 void LIR_Op::visit(LIR_OpVisitState* state) {
1010 ShouldNotReachHere();
1011 }
1012
1013 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1014 if (stub != nullptr) {
1015 stub->visit(this);
1016 }
1017 }
1018
1019 XHandlers* LIR_OpVisitState::all_xhandler() {
1020 XHandlers* result = nullptr;
1021
1022 int i;
1023 for (i = 0; i < info_count(); i++) {
1024 if (info_at(i)->exception_handlers() != nullptr) {
1025 result = info_at(i)->exception_handlers();
1026 break;
1027 }
1028 }
1029
1030 #ifdef ASSERT
1031 for (i = 0; i < info_count(); i++) {
1032 assert(info_at(i)->exception_handlers() == nullptr ||
1033 info_at(i)->exception_handlers() == result,
1034 "only one xhandler list allowed per LIR-operation");
1035 }
1036 #endif
1037
1038 if (result != nullptr) {
1039 return result;
1040 } else {
1041 return new XHandlers();
1042 }
1043
1044 return result;
1045 }
1046
1047
1048 #ifdef ASSERT
1049 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1050 visit(op);
1051
1052 return opr_count(inputMode) == 0 &&
1053 opr_count(outputMode) == 0 &&
1054 opr_count(tempMode) == 0 &&
1055 info_count() == 0 &&
1056 !has_call() &&
1057 !has_slow_case();
1058 }
1059 #endif
1060
1061 // LIR_OpReturn
1062 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1063 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1064 _stub(nullptr) {
1065 if (VM_Version::supports_stack_watermark_barrier()) {
1066 _stub = new C1SafepointPollStub();
1067 }
1068 }
1069
1070 //---------------------------------------------------
1071
1072
1073 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1074 masm->emit_call(this);
1075 }
1076
1077 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1078 ciType* return_type = method()->return_type();
1079 if (InlineTypeReturnedAsFields) {
1080 if (return_type->is_inlinetype()) {
1081 ciInlineKlass* vk = return_type->as_inline_klass();
1082 if (vk->can_be_returned_as_fields()) {
1083 if (vk_ret != nullptr) {
1084 *vk_ret = vk;
1085 }
1086 return true;
1087 }
1088 } else if (return_type->is_instance_klass() &&
1089 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1090 StressCallingConvention)) {
1091 // An inline type might be returned from the call but we don't know its type.
1092 // This can happen with method handle intrinsics or when the return type is
1093 // not loaded (method holder is not loaded or preload attribute is missing).
1094 // If an inline type is returned, we either get an oop to a buffer and nothing
1095 // needs to be done or one of the values being returned is the klass of the
1096 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1097 // type instance of that type and initialize it with the fields values being
1098 // returned in other registers.
1099 return true;
1100 }
1101 }
1102 return false;
1103 }
1104
1105 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1106 masm->emit_rtcall(this);
1107 }
1108
1109 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1110 masm->emit_opLabel(this);
1111 }
1112
1113 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1114 masm->emit_arraycopy(this);
1115 ArrayCopyStub* code_stub = stub();
1116 if (code_stub != nullptr) {
1117 masm->append_code_stub(code_stub);
1118 }
1119 }
1120
1121 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1122 masm->emit_updatecrc32(this);
1123 }
1124
1125 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1126 masm->emit_op0(this);
1127 }
1128
1129 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1130 masm->emit_op1(this);
1131 }
1132
1133 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1134 masm->emit_alloc_obj(this);
1135 masm->append_code_stub(stub());
1136 }
1137
1138 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1139 masm->emit_opBranch(this);
1140 if (stub()) {
1141 masm->append_code_stub(stub());
1142 }
1143 }
1144
1145 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1146 masm->emit_opConvert(this);
1147 if (stub() != nullptr) {
1148 masm->append_code_stub(stub());
1149 }
1150 }
1151
1152 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1153 masm->emit_op2(this);
1154 }
1155
1156 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1157 masm->emit_alloc_array(this);
1158 masm->append_code_stub(stub());
1159 }
1160
1161 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1162 masm->emit_opTypeCheck(this);
1163 if (stub()) {
1164 masm->append_code_stub(stub());
1165 }
1166 }
1167
1168 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1169 masm->emit_opFlattenedArrayCheck(this);
1170 if (stub() != nullptr) {
1171 masm->append_code_stub(stub());
1172 }
1173 }
1174
1175 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1176 masm->emit_opNullFreeArrayCheck(this);
1177 }
1178
1179 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1180 masm->emit_opSubstitutabilityCheck(this);
1181 if (stub() != nullptr) {
1182 masm->append_code_stub(stub());
1183 }
1184 }
1185
1186 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1187 masm->emit_compare_and_swap(this);
1188 }
1189
1190 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1191 masm->emit_op3(this);
1192 }
1193
1194 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1195 masm->emit_op4(this);
1196 }
1197
1198 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1199 masm->emit_lock(this);
1200 if (stub()) {
1201 masm->append_code_stub(stub());
1202 }
1203 if (throw_ie_stub()) {
1204 masm->append_code_stub(throw_ie_stub());
1205 }
1206 }
1207
1208 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1209 masm->emit_load_klass(this);
1210 }
1211
1212 #ifdef ASSERT
1213 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1214 masm->emit_assert(this);
1215 }
1216 #endif
1217
1218 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1219 masm->emit_delay(this);
1220 }
1221
1222 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1223 masm->emit_profile_call(this);
1224 }
1225
1226 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1227 masm->emit_profile_type(this);
1228 }
1229
1230 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1231 masm->emit_profile_inline_type(this);
1232 }
1233
1234 // LIR_List
1235 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1236 : _operations(8)
1237 , _compilation(compilation)
1238 #ifndef PRODUCT
1239 , _block(block)
1240 #endif
1241 #ifdef ASSERT
1242 , _file(nullptr)
1243 , _line(0)
1244 #endif
1245 #ifdef RISCV
1246 , _cmp_opr1(LIR_OprFact::illegalOpr)
1247 , _cmp_opr2(LIR_OprFact::illegalOpr)
1248 #endif
1249 { }
1250
1251
1252 #ifdef ASSERT
1253 void LIR_List::set_file_and_line(const char * file, int line) {
1254 const char * f = strrchr(file, '/');
1255 if (f == nullptr) f = strrchr(file, '\\');
1256 if (f == nullptr) {
1257 f = file;
1258 } else {
1259 f++;
1260 }
1261 _file = f;
1262 _line = line;
1263 }
1264 #endif
1265
1266 #ifdef RISCV
1267 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1268 switch (op->code()) {
1269 case lir_cmp:
1270 _cmp_opr1 = op->as_Op2()->in_opr1();
1271 _cmp_opr2 = op->as_Op2()->in_opr2();
1272 break;
1273 case lir_branch: // fall through
1274 case lir_cond_float_branch:
1275 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1276 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1277 "conditional branches must have legal operands");
1278 if (op->as_OpBranch()->cond() != lir_cond_always) {
1279 op->as_Op2()->set_in_opr1(_cmp_opr1);
1280 op->as_Op2()->set_in_opr2(_cmp_opr2);
1281 }
1282 break;
1283 case lir_cmove:
1284 op->as_Op4()->set_in_opr3(_cmp_opr1);
1285 op->as_Op4()->set_in_opr4(_cmp_opr2);
1286 break;
1287 case lir_cas_long:
1288 case lir_cas_obj:
1289 case lir_cas_int:
1290 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr();
1291 _cmp_opr2 = LIR_OprFact::intConst(0);
1292 break;
1293 #if INCLUDE_ZGC
1294 case lir_xloadbarrier_test:
1295 _cmp_opr1 = FrameMap::as_opr(t1);
1296 _cmp_opr2 = LIR_OprFact::intConst(0);
1297 break;
1298 #endif
1299 default:
1300 break;
1301 }
1302 }
1303 #endif
1304
1305 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1306 assert(this == buffer->lir_list(), "wrong lir list");
1307 const int n = _operations.length();
1308
1309 if (buffer->number_of_ops() > 0) {
1310 // increase size of instructions list
1311 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr);
1312 // insert ops from buffer into instructions list
1313 int op_index = buffer->number_of_ops() - 1;
1314 int ip_index = buffer->number_of_insertion_points() - 1;
1315 int from_index = n - 1;
1316 int to_index = _operations.length() - 1;
1317 for (; ip_index >= 0; ip_index --) {
1318 int index = buffer->index_at(ip_index);
1319 // make room after insertion point
1320 while (index < from_index) {
1321 _operations.at_put(to_index --, _operations.at(from_index --));
1322 }
1323 // insert ops from buffer
1324 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1325 _operations.at_put(to_index --, buffer->op_at(op_index --));
1326 }
1327 }
1328 }
1329
1330 buffer->finish();
1331 }
1332
1333
1334 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1335 assert(reg->type() == T_OBJECT, "bad reg");
1336 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1337 }
1338
1339 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1340 assert(reg->type() == T_METADATA, "bad reg");
1341 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1342 }
1343
1344 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1345 append(new LIR_Op1(
1346 lir_move,
1347 LIR_OprFact::address(addr),
1348 src,
1349 addr->type(),
1350 patch_code,
1351 info));
1352 }
1353
1354
1355 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1356 append(new LIR_Op1(
1357 lir_move,
1358 LIR_OprFact::address(address),
1359 dst,
1360 address->type(),
1361 patch_code,
1362 info, lir_move_volatile));
1363 }
1364
1365 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1366 append(new LIR_Op1(
1367 lir_move,
1368 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1369 dst,
1370 type,
1371 patch_code,
1372 info, lir_move_volatile));
1373 }
1374
1375
1376 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1377 append(new LIR_Op1(
1378 lir_move,
1379 LIR_OprFact::intConst(v),
1380 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1381 type,
1382 patch_code,
1383 info));
1384 }
1385
1386
1387 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1388 append(new LIR_Op1(
1389 lir_move,
1390 LIR_OprFact::oopConst(o),
1391 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1392 type,
1393 patch_code,
1394 info));
1395 }
1396
1397
1398 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1399 append(new LIR_Op1(
1400 lir_move,
1401 src,
1402 LIR_OprFact::address(addr),
1403 addr->type(),
1404 patch_code,
1405 info));
1406 }
1407
1408
1409 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1410 append(new LIR_Op1(
1411 lir_move,
1412 src,
1413 LIR_OprFact::address(addr),
1414 addr->type(),
1415 patch_code,
1416 info,
1417 lir_move_volatile));
1418 }
1419
1420 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1421 append(new LIR_Op1(
1422 lir_move,
1423 src,
1424 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1425 type,
1426 patch_code,
1427 info, lir_move_volatile));
1428 }
1429
1430
1431 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1432 append(new LIR_Op3(
1433 lir_idiv,
1434 left,
1435 right,
1436 tmp,
1437 res,
1438 info));
1439 }
1440
1441
1442 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1443 append(new LIR_Op3(
1444 lir_idiv,
1445 left,
1446 LIR_OprFact::intConst(right),
1447 tmp,
1448 res,
1449 info));
1450 }
1451
1452
1453 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1454 append(new LIR_Op3(
1455 lir_irem,
1456 left,
1457 right,
1458 tmp,
1459 res,
1460 info));
1461 }
1462
1463
1464 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1465 append(new LIR_Op3(
1466 lir_irem,
1467 left,
1468 LIR_OprFact::intConst(right),
1469 tmp,
1470 res,
1471 info));
1472 }
1473
1474
1475 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1476 append(new LIR_Op2(
1477 lir_cmp,
1478 condition,
1479 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1480 LIR_OprFact::intConst(c),
1481 info));
1482 }
1483
1484
1485 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1486 append(new LIR_Op2(
1487 lir_cmp,
1488 condition,
1489 reg,
1490 LIR_OprFact::address(addr),
1491 info));
1492 }
1493
1494 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1495 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1496 append(new LIR_OpAllocObj(
1497 klass,
1498 dst,
1499 t1,
1500 t2,
1501 t3,
1502 t4,
1503 header_size,
1504 object_size,
1505 init_check,
1506 stub));
1507 }
1508
1509 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub, bool zero_array, bool is_null_free) {
1510 append(new LIR_OpAllocArray(
1511 klass,
1512 len,
1513 dst,
1514 t1,
1515 t2,
1516 t3,
1517 t4,
1518 type,
1519 stub,
1520 zero_array,
1521 is_null_free));
1522 }
1523
1524 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1525 append(new LIR_Op2(
1526 lir_shl,
1527 value,
1528 count,
1529 dst,
1530 tmp));
1531 }
1532
1533 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1534 append(new LIR_Op2(
1535 lir_shr,
1536 value,
1537 count,
1538 dst,
1539 tmp));
1540 }
1541
1542
1543 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1544 append(new LIR_Op2(
1545 lir_ushr,
1546 value,
1547 count,
1548 dst,
1549 tmp));
1550 }
1551
1552 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1553 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1554 left,
1555 right,
1556 dst));
1557 }
1558
1559 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) {
1560 append(new LIR_OpLock(
1561 lir_lock,
1562 hdr,
1563 obj,
1564 lock,
1565 scratch,
1566 stub,
1567 info,
1568 throw_ie_stub));
1569 }
1570
1571 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1572 append(new LIR_OpLock(
1573 lir_unlock,
1574 hdr,
1575 obj,
1576 lock,
1577 scratch,
1578 stub,
1579 nullptr));
1580 }
1581
1582
1583 void check_LIR() {
1584 // cannot do the proper checking as PRODUCT and other modes return different results
1585 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1586 }
1587
1588
1589
1590 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1591 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1592 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1593 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1594 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1595 // on the object.
1596 bool need_null_check = !is_null_free;
1597 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1598 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1599 need_null_check);
1600 if (profiled_method != nullptr) {
1601 c->set_profiled_method(profiled_method);
1602 c->set_profiled_bci(profiled_bci);
1603 c->set_should_profile(true);
1604 }
1605 append(c);
1606 }
1607
1608 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) {
1609 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1610 if (profiled_method != nullptr) {
1611 c->set_profiled_method(profiled_method);
1612 c->set_profiled_bci(profiled_bci);
1613 c->set_should_profile(true);
1614 }
1615 append(c);
1616 }
1617
1618
1619 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1620 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1621 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1622 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1623 if (profiled_method != nullptr) {
1624 c->set_profiled_method(profiled_method);
1625 c->set_profiled_bci(profiled_bci);
1626 c->set_should_profile(true);
1627 }
1628 append(c);
1629 }
1630
1631 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1632 if (deoptimize_on_null) {
1633 // Emit an explicit null check and deoptimize if opr is null
1634 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1635 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1636 branch(lir_cond_equal, deopt);
1637 } else {
1638 // Emit an implicit null check
1639 append(new LIR_Op1(lir_null_check, opr, info));
1640 }
1641 }
1642
1643 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1644 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1645 append(c);
1646 }
1647
1648 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1649 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1650 append(c);
1651 }
1652
1653 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1654 LIR_Opr tmp1, LIR_Opr tmp2,
1655 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1656 CodeEmitInfo* info, CodeStub* stub) {
1657 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1658 tmp1, tmp2,
1659 left_klass, right_klass, left_klass_op, right_klass_op,
1660 info, stub);
1661 append(c);
1662 }
1663
1664 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1665 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1666 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1667 }
1668
1669 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1670 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1671 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1672 }
1673
1674 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1675 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1676 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1677 }
1678
1679
1680 #ifdef PRODUCT
1681
1682 void print_LIR(BlockList* blocks) {
1683 }
1684
1685 #else
1686 // LIR_Opr
1687 void LIR_Opr::print() const {
1688 print(tty);
1689 }
1690
1691 void LIR_Opr::print(outputStream* out) const {
1692 if (is_illegal()) {
1693 return;
1694 }
1695
1696 out->print("[");
1697 if (is_pointer()) {
1698 pointer()->print_value_on(out);
1699 } else if (is_single_stack()) {
1700 out->print("stack:%d", single_stack_ix());
1701 } else if (is_double_stack()) {
1702 out->print("dbl_stack:%d",double_stack_ix());
1703 } else if (is_virtual()) {
1704 out->print("R%d", vreg_number());
1705 } else if (is_single_cpu()) {
1706 out->print("%s", as_register()->name());
1707 } else if (is_double_cpu()) {
1708 out->print("%s", as_register_hi()->name());
1709 out->print("%s", as_register_lo()->name());
1710 #if defined(X86)
1711 } else if (is_single_xmm()) {
1712 out->print("%s", as_xmm_float_reg()->name());
1713 } else if (is_double_xmm()) {
1714 out->print("%s", as_xmm_double_reg()->name());
1715 } else if (is_single_fpu()) {
1716 out->print("fpu%d", fpu_regnr());
1717 } else if (is_double_fpu()) {
1718 out->print("fpu%d", fpu_regnrLo());
1719 #elif defined(AARCH64)
1720 } else if (is_single_fpu()) {
1721 out->print("fpu%d", fpu_regnr());
1722 } else if (is_double_fpu()) {
1723 out->print("fpu%d", fpu_regnrLo());
1724 #elif defined(ARM)
1725 } else if (is_single_fpu()) {
1726 out->print("s%d", fpu_regnr());
1727 } else if (is_double_fpu()) {
1728 out->print("d%d", fpu_regnrLo() >> 1);
1729 #else
1730 } else if (is_single_fpu()) {
1731 out->print("%s", as_float_reg()->name());
1732 } else if (is_double_fpu()) {
1733 out->print("%s", as_double_reg()->name());
1734 #endif
1735
1736 } else if (is_illegal()) {
1737 out->print("-");
1738 } else {
1739 out->print("Unknown Operand");
1740 }
1741 if (!is_illegal()) {
1742 out->print("|%c", type_char());
1743 }
1744 if (is_register() && is_last_use()) {
1745 out->print("(last_use)");
1746 }
1747 out->print("]");
1748 }
1749
1750
1751 // LIR_Address
1752 void LIR_Const::print_value_on(outputStream* out) const {
1753 switch (type()) {
1754 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1755 case T_INT: out->print("int:%d", as_jint()); break;
1756 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1757 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1758 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1759 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1760 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1761 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1762 }
1763 }
1764
1765 // LIR_Address
1766 void LIR_Address::print_value_on(outputStream* out) const {
1767 out->print("Base:"); _base->print(out);
1768 if (!_index->is_illegal()) {
1769 out->print(" Index:"); _index->print(out);
1770 switch (scale()) {
1771 case times_1: break;
1772 case times_2: out->print(" * 2"); break;
1773 case times_4: out->print(" * 4"); break;
1774 case times_8: out->print(" * 8"); break;
1775 }
1776 }
1777 out->print(" Disp: %zd", _disp);
1778 }
1779
1780 // debug output of block header without InstructionPrinter
1781 // (because phi functions are not necessary for LIR)
1782 static void print_block(BlockBegin* x) {
1783 // print block id
1784 BlockEnd* end = x->end();
1785 tty->print("B%d ", x->block_id());
1786
1787 // print flags
1788 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1789 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1790 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1791 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1792 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1793 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1794 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1795
1796 // print block bci range
1797 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci()));
1798
1799 // print predecessors and successors
1800 if (x->number_of_preds() > 0) {
1801 tty->print("preds: ");
1802 for (int i = 0; i < x->number_of_preds(); i ++) {
1803 tty->print("B%d ", x->pred_at(i)->block_id());
1804 }
1805 }
1806
1807 if (end != nullptr && x->number_of_sux() > 0) {
1808 tty->print("sux: ");
1809 for (int i = 0; i < x->number_of_sux(); i ++) {
1810 tty->print("B%d ", x->sux_at(i)->block_id());
1811 }
1812 }
1813
1814 // print exception handlers
1815 if (x->number_of_exception_handlers() > 0) {
1816 tty->print("xhandler: ");
1817 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1818 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1819 }
1820 }
1821
1822 tty->cr();
1823 }
1824
1825 void print_LIR(BlockList* blocks) {
1826 tty->print_cr("LIR:");
1827 int i;
1828 for (i = 0; i < blocks->length(); i++) {
1829 BlockBegin* bb = blocks->at(i);
1830 print_block(bb);
1831 tty->print("__id_Instruction___________________________________________"); tty->cr();
1832 bb->lir()->print_instructions();
1833 }
1834 }
1835
1836 void LIR_List::print_instructions() {
1837 for (int i = 0; i < _operations.length(); i++) {
1838 _operations.at(i)->print(); tty->cr();
1839 }
1840 tty->cr();
1841 }
1842
1843 // LIR_Ops printing routines
1844 // LIR_Op
1845 void LIR_Op::print_on(outputStream* out) const {
1846 if (id() != -1 || PrintCFGToFile) {
1847 out->print("%4d ", id());
1848 } else {
1849 out->print(" ");
1850 }
1851 out->print("%s ", name());
1852 print_instr(out);
1853 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci());
1854 #ifdef ASSERT
1855 if (Verbose && _file != nullptr) {
1856 out->print(" (%s:%d)", _file, _line);
1857 }
1858 #endif
1859 }
1860
1861 const char * LIR_Op::name() const {
1862 const char* s = nullptr;
1863 switch(code()) {
1864 // LIR_Op0
1865 case lir_membar: s = "membar"; break;
1866 case lir_membar_acquire: s = "membar_acquire"; break;
1867 case lir_membar_release: s = "membar_release"; break;
1868 case lir_membar_loadload: s = "membar_loadload"; break;
1869 case lir_membar_storestore: s = "membar_storestore"; break;
1870 case lir_membar_loadstore: s = "membar_loadstore"; break;
1871 case lir_membar_storeload: s = "membar_storeload"; break;
1872 case lir_label: s = "label"; break;
1873 case lir_nop: s = "nop"; break;
1874 case lir_on_spin_wait: s = "on_spin_wait"; break;
1875 case lir_std_entry: s = "std_entry"; break;
1876 case lir_osr_entry: s = "osr_entry"; break;
1877 case lir_breakpoint: s = "breakpoint"; break;
1878 case lir_get_thread: s = "get_thread"; break;
1879 case lir_check_orig_pc: s = "check_orig_pc"; break;
1880 // LIR_Op1
1881 case lir_push: s = "push"; break;
1882 case lir_pop: s = "pop"; break;
1883 case lir_null_check: s = "null_check"; break;
1884 case lir_return: s = "return"; break;
1885 case lir_safepoint: s = "safepoint"; break;
1886 case lir_leal: s = "leal"; break;
1887 case lir_branch: s = "branch"; break;
1888 case lir_cond_float_branch: s = "flt_cond_br"; break;
1889 case lir_move: s = "move"; break;
1890 case lir_abs: s = "abs"; break;
1891 case lir_neg: s = "neg"; break;
1892 case lir_sqrt: s = "sqrt"; break;
1893 case lir_f2hf: s = "f2hf"; break;
1894 case lir_hf2f: s = "hf2f"; break;
1895 case lir_rtcall: s = "rtcall"; break;
1896 case lir_throw: s = "throw"; break;
1897 case lir_unwind: s = "unwind"; break;
1898 case lir_convert: s = "convert"; break;
1899 case lir_alloc_object: s = "alloc_obj"; break;
1900 case lir_monaddr: s = "mon_addr"; break;
1901 // LIR_Op2
1902 case lir_cmp: s = "cmp"; break;
1903 case lir_cmp_l2i: s = "cmp_l2i"; break;
1904 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1905 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1906 case lir_add: s = "add"; break;
1907 case lir_sub: s = "sub"; break;
1908 case lir_mul: s = "mul"; break;
1909 case lir_div: s = "div"; break;
1910 case lir_rem: s = "rem"; break;
1911 case lir_logic_and: s = "logic_and"; break;
1912 case lir_logic_or: s = "logic_or"; break;
1913 case lir_logic_xor: s = "logic_xor"; break;
1914 case lir_shl: s = "shift_left"; break;
1915 case lir_shr: s = "shift_right"; break;
1916 case lir_ushr: s = "ushift_right"; break;
1917 case lir_alloc_array: s = "alloc_array"; break;
1918 case lir_xadd: s = "xadd"; break;
1919 case lir_xchg: s = "xchg"; break;
1920 // LIR_Op3
1921 case lir_idiv: s = "idiv"; break;
1922 case lir_irem: s = "irem"; break;
1923 case lir_fmad: s = "fmad"; break;
1924 case lir_fmaf: s = "fmaf"; break;
1925 // LIR_Op4
1926 case lir_cmove: s = "cmove"; break;
1927 // LIR_OpJavaCall
1928 case lir_static_call: s = "static"; break;
1929 case lir_optvirtual_call: s = "optvirtual"; break;
1930 case lir_icvirtual_call: s = "icvirtual"; break;
1931 case lir_dynamic_call: s = "dynamic"; break;
1932 // LIR_OpArrayCopy
1933 case lir_arraycopy: s = "arraycopy"; break;
1934 // LIR_OpUpdateCRC32
1935 case lir_updatecrc32: s = "updatecrc32"; break;
1936 // LIR_OpLock
1937 case lir_lock: s = "lock"; break;
1938 case lir_unlock: s = "unlock"; break;
1939 // LIR_OpDelay
1940 case lir_delay_slot: s = "delay"; break;
1941 // LIR_OpTypeCheck
1942 case lir_instanceof: s = "instanceof"; break;
1943 case lir_checkcast: s = "checkcast"; break;
1944 case lir_store_check: s = "store_check"; break;
1945 // LIR_OpFlattenedArrayCheck
1946 case lir_flat_array_check: s = "flat_array_check"; break;
1947 // LIR_OpNullFreeArrayCheck
1948 case lir_null_free_array_check: s = "null_free_array_check"; break;
1949 // LIR_OpSubstitutabilityCheck
1950 case lir_substitutability_check: s = "substitutability_check"; break;
1951 // LIR_OpCompareAndSwap
1952 case lir_cas_long: s = "cas_long"; break;
1953 case lir_cas_obj: s = "cas_obj"; break;
1954 case lir_cas_int: s = "cas_int"; break;
1955 // LIR_OpProfileCall
1956 case lir_profile_call: s = "profile_call"; break;
1957 // LIR_OpProfileType
1958 case lir_profile_type: s = "profile_type"; break;
1959 // LIR_OpProfileInlineType
1960 case lir_profile_inline_type: s = "profile_inline_type"; break;
1961 // LIR_OpAssert
1962 #ifdef ASSERT
1963 case lir_assert: s = "assert"; break;
1964 #endif
1965 case lir_none: ShouldNotReachHere();break;
1966 default: s = "illegal_op"; break;
1967 }
1968 return s;
1969 }
1970
1971 // LIR_OpJavaCall
1972 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1973 out->print("call: ");
1974 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1975 if (receiver()->is_valid()) {
1976 out->print(" [recv: "); receiver()->print(out); out->print("]");
1977 }
1978 if (result_opr()->is_valid()) {
1979 out->print(" [result: "); result_opr()->print(out); out->print("]");
1980 }
1981 }
1982
1983 // LIR_OpLabel
1984 void LIR_OpLabel::print_instr(outputStream* out) const {
1985 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1986 }
1987
1988 // LIR_OpArrayCopy
1989 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1990 src()->print(out); out->print(" ");
1991 src_pos()->print(out); out->print(" ");
1992 dst()->print(out); out->print(" ");
1993 dst_pos()->print(out); out->print(" ");
1994 length()->print(out); out->print(" ");
1995 tmp()->print(out); out->print(" ");
1996 }
1997
1998 // LIR_OpUpdateCRC32
1999 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
2000 crc()->print(out); out->print(" ");
2001 val()->print(out); out->print(" ");
2002 result_opr()->print(out); out->print(" ");
2003 }
2004
2005 // LIR_OpCompareAndSwap
2006 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
2007 addr()->print(out); out->print(" ");
2008 cmp_value()->print(out); out->print(" ");
2009 new_value()->print(out); out->print(" ");
2010 tmp1()->print(out); out->print(" ");
2011 tmp2()->print(out); out->print(" ");
2012
2013 }
2014
2015 // LIR_Op0
2016 void LIR_Op0::print_instr(outputStream* out) const {
2017 result_opr()->print(out);
2018 }
2019
2020 // LIR_Op1
2021 const char * LIR_Op1::name() const {
2022 if (code() == lir_move) {
2023 switch (move_kind()) {
2024 case lir_move_normal:
2025 return "move";
2026 case lir_move_volatile:
2027 return "volatile_move";
2028 case lir_move_wide:
2029 return "wide_move";
2030 default:
2031 ShouldNotReachHere();
2032 return "illegal_op";
2033 }
2034 } else {
2035 return LIR_Op::name();
2036 }
2037 }
2038
2039
2040 void LIR_Op1::print_instr(outputStream* out) const {
2041 _opr->print(out); out->print(" ");
2042 result_opr()->print(out); out->print(" ");
2043 print_patch_code(out, patch_code());
2044 }
2045
2046
2047 // LIR_Op1
2048 void LIR_OpRTCall::print_instr(outputStream* out) const {
2049 intx a = (intx)addr();
2050 out->print("%s", Runtime1::name_for_address(addr()));
2051 out->print(" ");
2052 tmp()->print(out);
2053 }
2054
2055 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2056 switch(code) {
2057 case lir_patch_none: break;
2058 case lir_patch_low: out->print("[patch_low]"); break;
2059 case lir_patch_high: out->print("[patch_high]"); break;
2060 case lir_patch_normal: out->print("[patch_normal]"); break;
2061 default: ShouldNotReachHere();
2062 }
2063 }
2064
2065 // LIR_OpBranch
2066 void LIR_OpBranch::print_instr(outputStream* out) const {
2067 print_condition(out, cond()); out->print(" ");
2068 in_opr1()->print(out); out->print(" ");
2069 in_opr2()->print(out); out->print(" ");
2070 if (block() != nullptr) {
2071 out->print("[B%d] ", block()->block_id());
2072 } else if (stub() != nullptr) {
2073 out->print("[");
2074 stub()->print_name(out);
2075 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2076 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2077 } else {
2078 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2079 }
2080 if (ublock() != nullptr) {
2081 out->print("unordered: [B%d] ", ublock()->block_id());
2082 }
2083 }
2084
2085 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2086 switch(cond) {
2087 case lir_cond_equal: out->print("[EQ]"); break;
2088 case lir_cond_notEqual: out->print("[NE]"); break;
2089 case lir_cond_less: out->print("[LT]"); break;
2090 case lir_cond_lessEqual: out->print("[LE]"); break;
2091 case lir_cond_greaterEqual: out->print("[GE]"); break;
2092 case lir_cond_greater: out->print("[GT]"); break;
2093 case lir_cond_belowEqual: out->print("[BE]"); break;
2094 case lir_cond_aboveEqual: out->print("[AE]"); break;
2095 case lir_cond_always: out->print("[AL]"); break;
2096 default: out->print("[%d]",cond); break;
2097 }
2098 }
2099
2100 // LIR_OpConvert
2101 void LIR_OpConvert::print_instr(outputStream* out) const {
2102 print_bytecode(out, bytecode());
2103 in_opr()->print(out); out->print(" ");
2104 result_opr()->print(out); out->print(" ");
2105 }
2106
2107 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2108 switch(code) {
2109 case Bytecodes::_d2f: out->print("[d2f] "); break;
2110 case Bytecodes::_d2i: out->print("[d2i] "); break;
2111 case Bytecodes::_d2l: out->print("[d2l] "); break;
2112 case Bytecodes::_f2d: out->print("[f2d] "); break;
2113 case Bytecodes::_f2i: out->print("[f2i] "); break;
2114 case Bytecodes::_f2l: out->print("[f2l] "); break;
2115 case Bytecodes::_i2b: out->print("[i2b] "); break;
2116 case Bytecodes::_i2c: out->print("[i2c] "); break;
2117 case Bytecodes::_i2d: out->print("[i2d] "); break;
2118 case Bytecodes::_i2f: out->print("[i2f] "); break;
2119 case Bytecodes::_i2l: out->print("[i2l] "); break;
2120 case Bytecodes::_i2s: out->print("[i2s] "); break;
2121 case Bytecodes::_l2i: out->print("[l2i] "); break;
2122 case Bytecodes::_l2f: out->print("[l2f] "); break;
2123 case Bytecodes::_l2d: out->print("[l2d] "); break;
2124 default:
2125 out->print("[?%d]",code);
2126 break;
2127 }
2128 }
2129
2130 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2131 klass()->print(out); out->print(" ");
2132 obj()->print(out); out->print(" ");
2133 tmp1()->print(out); out->print(" ");
2134 tmp2()->print(out); out->print(" ");
2135 tmp3()->print(out); out->print(" ");
2136 tmp4()->print(out); out->print(" ");
2137 out->print("[hdr:%d]", header_size()); out->print(" ");
2138 out->print("[obj:%d]", object_size()); out->print(" ");
2139 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2140 }
2141
2142 // LIR_Op2
2143 void LIR_Op2::print_instr(outputStream* out) const {
2144 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2145 print_condition(out, condition()); out->print(" ");
2146 }
2147 in_opr1()->print(out); out->print(" ");
2148 in_opr2()->print(out); out->print(" ");
2149 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2150 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2151 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2152 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2153 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2154 result_opr()->print(out);
2155 }
2156
2157 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2158 klass()->print(out); out->print(" ");
2159 len()->print(out); out->print(" ");
2160 obj()->print(out); out->print(" ");
2161 tmp1()->print(out); out->print(" ");
2162 tmp2()->print(out); out->print(" ");
2163 tmp3()->print(out); out->print(" ");
2164 tmp4()->print(out); out->print(" ");
2165 out->print("[type:0x%x]", type()); out->print(" ");
2166 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2167 }
2168
2169
2170 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2171 object()->print(out); out->print(" ");
2172 if (code() == lir_store_check) {
2173 array()->print(out); out->print(" ");
2174 }
2175 if (code() != lir_store_check) {
2176 klass()->print_name_on(out); out->print(" ");
2177 if (fast_check()) out->print("fast_check ");
2178 }
2179 tmp1()->print(out); out->print(" ");
2180 tmp2()->print(out); out->print(" ");
2181 tmp3()->print(out); out->print(" ");
2182 result_opr()->print(out); out->print(" ");
2183 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2184 }
2185
2186 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2187 array()->print(out); out->print(" ");
2188 value()->print(out); out->print(" ");
2189 tmp()->print(out); out->print(" ");
2190 if (stub() != nullptr) {
2191 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2192 }
2193 }
2194
2195 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2196 array()->print(out); out->print(" ");
2197 tmp()->print(out); out->print(" ");
2198 }
2199
2200 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2201 result_opr()->print(out); out->print(" ");
2202 left()->print(out); out->print(" ");
2203 right()->print(out); out->print(" ");
2204 equal_result()->print(out); out->print(" ");
2205 not_equal_result()->print(out); out->print(" ");
2206 tmp1()->print(out); out->print(" ");
2207 tmp2()->print(out); out->print(" ");
2208 if (left_klass() == nullptr) {
2209 out->print("unknown ");
2210 } else {
2211 left_klass()->print(out); out->print(" ");
2212 }
2213 if (right_klass() == nullptr) {
2214 out->print("unknown ");
2215 } else {
2216 right_klass()->print(out); out->print(" ");
2217 }
2218 left_klass_op()->print(out); out->print(" ");
2219 right_klass_op()->print(out); out->print(" ");
2220 if (stub() != nullptr) {
2221 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2222 }
2223 }
2224
2225 // LIR_Op3
2226 void LIR_Op3::print_instr(outputStream* out) const {
2227 in_opr1()->print(out); out->print(" ");
2228 in_opr2()->print(out); out->print(" ");
2229 in_opr3()->print(out); out->print(" ");
2230 result_opr()->print(out);
2231 }
2232
2233 // LIR_Op4
2234 void LIR_Op4::print_instr(outputStream* out) const {
2235 print_condition(out, condition()); out->print(" ");
2236 in_opr1()->print(out); out->print(" ");
2237 in_opr2()->print(out); out->print(" ");
2238 in_opr3()->print(out); out->print(" ");
2239 in_opr4()->print(out); out->print(" ");
2240 result_opr()->print(out);
2241 }
2242
2243 void LIR_OpLock::print_instr(outputStream* out) const {
2244 hdr_opr()->print(out); out->print(" ");
2245 obj_opr()->print(out); out->print(" ");
2246 lock_opr()->print(out); out->print(" ");
2247 if (_scratch->is_valid()) {
2248 _scratch->print(out); out->print(" ");
2249 }
2250 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2251 }
2252
2253 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2254 obj()->print(out); out->print(" ");
2255 result_opr()->print(out); out->print(" ");
2256 }
2257
2258 #ifdef ASSERT
2259 void LIR_OpAssert::print_instr(outputStream* out) const {
2260 print_condition(out, condition()); out->print(" ");
2261 in_opr1()->print(out); out->print(" ");
2262 in_opr2()->print(out); out->print(", \"");
2263 out->print("%s", msg()); out->print("\"");
2264 }
2265 #endif
2266
2267
2268 void LIR_OpDelay::print_instr(outputStream* out) const {
2269 _op->print_on(out);
2270 }
2271
2272
2273 // LIR_OpProfileCall
2274 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2275 profiled_method()->name()->print_symbol_on(out);
2276 out->print(".");
2277 profiled_method()->holder()->name()->print_symbol_on(out);
2278 out->print(" @ %d ", profiled_bci());
2279 mdo()->print(out); out->print(" ");
2280 recv()->print(out); out->print(" ");
2281 tmp1()->print(out); out->print(" ");
2282 }
2283
2284 // LIR_OpProfileType
2285 void LIR_OpProfileType::print_instr(outputStream* out) const {
2286 out->print("exact = ");
2287 if (exact_klass() == nullptr) {
2288 out->print("unknown");
2289 } else {
2290 exact_klass()->print_name_on(out);
2291 }
2292 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2293 out->print(" ");
2294 mdp()->print(out); out->print(" ");
2295 obj()->print(out); out->print(" ");
2296 tmp()->print(out); out->print(" ");
2297 }
2298
2299 // LIR_OpProfileInlineType
2300 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2301 out->print(" flag = %x ", flag());
2302 mdp()->print(out); out->print(" ");
2303 obj()->print(out); out->print(" ");
2304 tmp()->print(out); out->print(" ");
2305 }
2306
2307 #endif // PRODUCT
2308
2309 // Implementation of LIR_InsertionBuffer
2310
2311 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2312 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2313
2314 int i = number_of_insertion_points() - 1;
2315 if (i < 0 || index_at(i) < index) {
2316 append_new(index, 1);
2317 } else {
2318 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2319 assert(count_at(i) > 0, "check");
2320 set_count_at(i, count_at(i) + 1);
2321 }
2322 _ops.push(op);
2323
2324 DEBUG_ONLY(verify());
2325 }
2326
2327 #ifdef ASSERT
2328 void LIR_InsertionBuffer::verify() {
2329 int sum = 0;
2330 int prev_idx = -1;
2331
2332 for (int i = 0; i < number_of_insertion_points(); i++) {
2333 assert(prev_idx < index_at(i), "index must be ordered ascending");
2334 sum += count_at(i);
2335 }
2336 assert(sum == number_of_ops(), "wrong total sum");
2337 }
2338 #endif