1 /*
2 * Copyright (c) 2000, 2025, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "c1/c1_CodeStubs.hpp"
26 #include "c1/c1_InstructionPrinter.hpp"
27 #include "c1/c1_LIR.hpp"
28 #include "c1/c1_LIRAssembler.hpp"
29 #include "c1/c1_ValueStack.hpp"
30 #include "ci/ciInlineKlass.hpp"
31 #include "ci/ciInstance.hpp"
32 #include "runtime/safepointMechanism.inline.hpp"
33 #include "runtime/sharedRuntime.hpp"
34 #include "runtime/vm_version.hpp"
35
36 Register LIR_Opr::as_register() const {
37 return FrameMap::cpu_rnr2reg(cpu_regnr());
38 }
39
40 Register LIR_Opr::as_register_lo() const {
41 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
42 }
43
44 Register LIR_Opr::as_register_hi() const {
45 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
46 }
47
48 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
49 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr();
50
51 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
52 ValueTag tag = type->tag();
53 switch (tag) {
54 case metaDataTag : {
55 ClassConstant* c = type->as_ClassConstant();
56 if (c != nullptr && !c->value()->is_loaded()) {
57 return LIR_OprFact::metadataConst(nullptr);
58 } else if (c != nullptr) {
59 return LIR_OprFact::metadataConst(c->value()->constant_encoding());
60 } else {
61 MethodConstant* m = type->as_MethodConstant();
62 assert (m != nullptr, "not a class or a method?");
63 return LIR_OprFact::metadataConst(m->value()->constant_encoding());
64 }
65 }
66 case objectTag : {
67 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
68 }
69 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
70 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value());
71 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
72 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value());
73 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
74 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
75 }
76 }
77
78
79 //---------------------------------------------------
80
81
82 LIR_Address::Scale LIR_Address::scale(BasicType type) {
83 int elem_size = type2aelembytes(type);
84 switch (elem_size) {
85 case 1: return LIR_Address::times_1;
86 case 2: return LIR_Address::times_2;
87 case 4: return LIR_Address::times_4;
88 case 8: return LIR_Address::times_8;
89 }
90 ShouldNotReachHere();
91 return LIR_Address::times_1;
92 }
93
94 //---------------------------------------------------
95
96 char LIR_Opr::type_char(BasicType t) {
97 switch (t) {
98 case T_ARRAY:
99 t = T_OBJECT;
100 case T_BOOLEAN:
101 case T_CHAR:
102 case T_FLOAT:
103 case T_DOUBLE:
104 case T_BYTE:
105 case T_SHORT:
106 case T_INT:
107 case T_LONG:
108 case T_OBJECT:
109 case T_ADDRESS:
110 case T_VOID:
111 return ::type2char(t);
112 case T_METADATA:
113 return 'M';
114 case T_ILLEGAL:
115 return '?';
116
117 default:
118 ShouldNotReachHere();
119 return '?';
120 }
121 }
122
123 #ifndef PRODUCT
124 void LIR_Opr::validate_type() const {
125
126 #ifdef ASSERT
127 if (!is_pointer() && !is_illegal()) {
128 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
129 switch (as_BasicType(type_field())) {
130 case T_LONG:
131 assert((kindfield == cpu_register || kindfield == stack_value) &&
132 size_field() == double_size, "must match");
133 break;
134 case T_FLOAT:
135 // FP return values can be also in CPU registers on ARM (softfp ABI)
136 assert((kindfield == fpu_register || kindfield == stack_value
137 ARM_ONLY(|| kindfield == cpu_register) ) &&
138 size_field() == single_size, "must match");
139 break;
140 case T_DOUBLE:
141 // FP return values can be also in CPU registers on ARM (softfp ABI)
142 assert((kindfield == fpu_register || kindfield == stack_value
143 ARM_ONLY(|| kindfield == cpu_register) ) &&
144 size_field() == double_size, "must match");
145 break;
146 case T_BOOLEAN:
147 case T_CHAR:
148 case T_BYTE:
149 case T_SHORT:
150 case T_INT:
151 case T_ADDRESS:
152 case T_OBJECT:
153 case T_METADATA:
154 case T_ARRAY:
155 assert((kindfield == cpu_register || kindfield == stack_value) &&
156 size_field() == single_size, "must match");
157 break;
158
159 case T_ILLEGAL:
160 // XXX TKR also means unknown right now
161 // assert(is_illegal(), "must match");
162 break;
163
164 default:
165 ShouldNotReachHere();
166 }
167 }
168 #endif
169
170 }
171 #endif // PRODUCT
172
173
174 bool LIR_Opr::is_oop() const {
175 if (is_pointer()) {
176 return pointer()->is_oop_pointer();
177 } else {
178 OprType t= type_field();
179 assert(t != unknown_type, "not set");
180 return t == object_type;
181 }
182 }
183
184
185
186 void LIR_Op2::verify() const {
187 #ifdef ASSERT
188 switch (code()) {
189 case lir_xchg:
190 break;
191
192 default:
193 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
194 "can't produce oops from arith");
195 }
196
197 if (two_operand_lir_form) {
198
199 bool threeOperandForm = false;
200 #ifdef S390
201 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
202 threeOperandForm =
203 code() == lir_shl ||
204 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
205 #endif
206
207 switch (code()) {
208 case lir_add:
209 case lir_sub:
210 case lir_mul:
211 case lir_div:
212 case lir_rem:
213 case lir_logic_and:
214 case lir_logic_or:
215 case lir_logic_xor:
216 case lir_shl:
217 case lir_shr:
218 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
219 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
220 break;
221
222 // special handling for lir_ushr because of write barriers
223 case lir_ushr:
224 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
225 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
226 break;
227
228 default:
229 break;
230 }
231 }
232 #endif
233 }
234
235
236 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block)
237 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
238 , _label(block->label())
239 , _block(block)
240 , _ublock(nullptr)
241 , _stub(nullptr) {
242 }
243
244 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) :
245 LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
246 , _label(stub->entry())
247 , _block(nullptr)
248 , _ublock(nullptr)
249 , _stub(stub) {
250 }
251
252 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock)
253 : LIR_Op2(lir_cond_float_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
254 , _label(block->label())
255 , _block(block)
256 , _ublock(ublock)
257 , _stub(nullptr)
258 {
259 }
260
261 void LIR_OpBranch::change_block(BlockBegin* b) {
262 assert(_block != nullptr, "must have old block");
263 assert(_block->label() == label(), "must be equal");
264
265 _block = b;
266 _label = b->label();
267 }
268
269 void LIR_OpBranch::change_ublock(BlockBegin* b) {
270 assert(_ublock != nullptr, "must have old block");
271 _ublock = b;
272 }
273
274 void LIR_OpBranch::negate_cond() {
275 switch (cond()) {
276 case lir_cond_equal: set_cond(lir_cond_notEqual); break;
277 case lir_cond_notEqual: set_cond(lir_cond_equal); break;
278 case lir_cond_less: set_cond(lir_cond_greaterEqual); break;
279 case lir_cond_lessEqual: set_cond(lir_cond_greater); break;
280 case lir_cond_greaterEqual: set_cond(lir_cond_less); break;
281 case lir_cond_greater: set_cond(lir_cond_lessEqual); break;
282 default: ShouldNotReachHere();
283 }
284 }
285
286
287 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
288 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
289 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
290 CodeStub* stub, bool need_null_check)
291
292 : LIR_Op(code, result, nullptr)
293 , _object(object)
294 , _array(LIR_OprFact::illegalOpr)
295 , _klass(klass)
296 , _tmp1(tmp1)
297 , _tmp2(tmp2)
298 , _tmp3(tmp3)
299 , _info_for_patch(info_for_patch)
300 , _info_for_exception(info_for_exception)
301 , _stub(stub)
302 , _profiled_method(nullptr)
303 , _profiled_bci(-1)
304 , _should_profile(false)
305 , _fast_check(fast_check)
306 , _need_null_check(need_null_check)
307 {
308 if (code == lir_checkcast) {
309 assert(info_for_exception != nullptr, "checkcast throws exceptions");
310 } else if (code == lir_instanceof) {
311 assert(info_for_exception == nullptr, "instanceof throws no exceptions");
312 } else {
313 ShouldNotReachHere();
314 }
315 }
316
317
318
319 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception)
320 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr)
321 , _object(object)
322 , _array(array)
323 , _klass(nullptr)
324 , _tmp1(tmp1)
325 , _tmp2(tmp2)
326 , _tmp3(tmp3)
327 , _info_for_patch(nullptr)
328 , _info_for_exception(info_for_exception)
329 , _stub(nullptr)
330 , _profiled_method(nullptr)
331 , _profiled_bci(-1)
332 , _should_profile(false)
333 , _fast_check(false)
334 , _need_null_check(true)
335 {
336 if (code == lir_store_check) {
337 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
338 assert(info_for_exception != nullptr, "store_check throws exceptions");
339 } else {
340 ShouldNotReachHere();
341 }
342 }
343
344 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
345 : LIR_Op(lir_flat_array_check, LIR_OprFact::illegalOpr, nullptr)
346 , _array(array)
347 , _value(value)
348 , _tmp(tmp)
349 , _stub(stub) {}
350
351
352 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
353 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, nullptr)
354 , _array(array)
355 , _tmp(tmp) {}
356
357
358 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
359 LIR_Opr tmp1, LIR_Opr tmp2,
360 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
361 CodeEmitInfo* info, CodeStub* stub)
362 : LIR_Op(lir_substitutability_check, result, info)
363 , _left(left)
364 , _right(right)
365 , _equal_result(equal_result)
366 , _not_equal_result(not_equal_result)
367 , _tmp1(tmp1)
368 , _tmp2(tmp2)
369 , _left_klass(left_klass)
370 , _right_klass(right_klass)
371 , _left_klass_op(left_klass_op)
372 , _right_klass_op(right_klass_op)
373 , _stub(stub) {}
374
375
376 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
377 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
378 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
379 , _src(src)
380 , _src_pos(src_pos)
381 , _dst(dst)
382 , _dst_pos(dst_pos)
383 , _length(length)
384 , _tmp(tmp)
385 , _expected_type(expected_type)
386 , _flags(flags) {
387 #if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV64) || defined(PPC64)
388 if (expected_type != nullptr &&
389 ((flags & ~LIR_OpArrayCopy::get_initial_copy_flags()) == 0)) {
390 _stub = nullptr;
391 } else {
392 _stub = new ArrayCopyStub(this);
393 }
394 #else
395 _stub = new ArrayCopyStub(this);
396 #endif
397 }
398
399 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
400 : LIR_Op(lir_updatecrc32, res, nullptr)
401 , _crc(crc)
402 , _val(val) {
403 }
404
405 //-------------------verify--------------------------
406
407 void LIR_Op1::verify() const {
408 switch(code()) {
409 case lir_move:
410 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
411 break;
412 case lir_null_check:
413 assert(in_opr()->is_register(), "must be");
414 break;
415 case lir_return:
416 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
417 break;
418 default:
419 break;
420 }
421 }
422
423 void LIR_OpRTCall::verify() const {
424 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
425 }
426
427 //-------------------visits--------------------------
428
429 // complete rework of LIR instruction visitor.
430 // The virtual call for each instruction type is replaced by a big
431 // switch that adds the operands for each instruction
432
433 void LIR_OpVisitState::visit(LIR_Op* op) {
434 // copy information from the LIR_Op
435 reset();
436 set_op(op);
437
438 switch (op->code()) {
439
440 // LIR_Op0
441 case lir_breakpoint: // result and info always invalid
442 case lir_membar: // result and info always invalid
443 case lir_membar_acquire: // result and info always invalid
444 case lir_membar_release: // result and info always invalid
445 case lir_membar_loadload: // result and info always invalid
446 case lir_membar_storestore: // result and info always invalid
447 case lir_membar_loadstore: // result and info always invalid
448 case lir_membar_storeload: // result and info always invalid
449 case lir_check_orig_pc: // result and info always invalid
450 case lir_on_spin_wait:
451 {
452 assert(op->as_Op0() != nullptr, "must be");
453 assert(op->_info == nullptr, "info not used by this instruction");
454 assert(op->_result->is_illegal(), "not used");
455 break;
456 }
457
458 case lir_nop: // may have info, result always invalid
459 case lir_std_entry: // may have result, info always invalid
460 case lir_osr_entry: // may have result, info always invalid
461 case lir_get_thread: // may have result, info always invalid
462 {
463 assert(op->as_Op0() != nullptr, "must be");
464 if (op->_info != nullptr) do_info(op->_info);
465 if (op->_result->is_valid()) do_output(op->_result);
466 break;
467 }
468
469
470 // LIR_OpLabel
471 case lir_label: // result and info always invalid
472 {
473 assert(op->as_OpLabel() != nullptr, "must be");
474 assert(op->_info == nullptr, "info not used by this instruction");
475 assert(op->_result->is_illegal(), "not used");
476 break;
477 }
478
479
480 // LIR_Op1
481 case lir_push: // input always valid, result and info always invalid
482 case lir_pop: // input always valid, result and info always invalid
483 case lir_leal: // input and result always valid, info always invalid
484 case lir_monaddr: // input and result always valid, info always invalid
485 case lir_null_check: // input and info always valid, result always invalid
486 case lir_move: // input and result always valid, may have info
487 case lir_sqrt: // FP Ops have no info, but input and result
488 case lir_abs:
489 case lir_neg:
490 case lir_f2hf:
491 case lir_hf2f:
492 {
493 assert(op->as_Op1() != nullptr, "must be");
494 LIR_Op1* op1 = (LIR_Op1*)op;
495
496 if (op1->_info) do_info(op1->_info);
497 if (op1->_opr->is_valid()) do_input(op1->_opr);
498 if (op1->_tmp->is_valid()) do_temp(op1->_tmp);
499 if (op1->_result->is_valid()) do_output(op1->_result);
500
501 break;
502 }
503
504 case lir_return:
505 {
506 assert(op->as_OpReturn() != nullptr, "must be");
507 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
508
509 if (op_ret->_info) do_info(op_ret->_info);
510 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
511 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
512 if (op_ret->stub() != nullptr) do_stub(op_ret->stub());
513
514 break;
515 }
516
517 case lir_safepoint:
518 {
519 assert(op->as_Op1() != nullptr, "must be");
520 LIR_Op1* op1 = (LIR_Op1*)op;
521
522 assert(op1->_info != nullptr, ""); do_info(op1->_info);
523 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
524 assert(op1->_tmp->is_illegal(), "not used");
525 assert(op1->_result->is_illegal(), "safepoint does not produce value");
526
527 break;
528 }
529
530 // LIR_OpConvert;
531 case lir_convert: // input and result always valid, info always invalid
532 {
533 assert(op->as_OpConvert() != nullptr, "must be");
534 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
535
536 assert(opConvert->_info == nullptr, "must be");
537 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
538 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
539 do_stub(opConvert->_stub);
540
541 break;
542 }
543
544 // LIR_OpBranch;
545 case lir_branch: // may have info, input and result register always invalid
546 case lir_cond_float_branch: // may have info, input and result register always invalid
547 {
548 assert(op->as_OpBranch() != nullptr, "must be");
549 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
550
551 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() &&
552 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() &&
553 opBranch->_tmp5->is_illegal(), "not used");
554
555 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1);
556 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2);
557
558 if (opBranch->_info != nullptr) do_info(opBranch->_info);
559 assert(opBranch->_result->is_illegal(), "not used");
560 if (opBranch->_stub != nullptr) opBranch->stub()->visit(this);
561
562 break;
563 }
564
565
566 // LIR_OpAllocObj
567 case lir_alloc_object:
568 {
569 assert(op->as_OpAllocObj() != nullptr, "must be");
570 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
571
572 if (opAllocObj->_info) do_info(opAllocObj->_info);
573 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
574 do_temp(opAllocObj->_opr);
575 }
576 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
577 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
578 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
579 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
580 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
581 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub);
582 break;
583 }
584
585
586 // LIR_Op2
587 case lir_cmp:
588 case lir_cmp_l2i:
589 case lir_ucmp_fd2i:
590 case lir_cmp_fd2i:
591 case lir_add:
592 case lir_sub:
593 case lir_rem:
594 case lir_logic_and:
595 case lir_logic_or:
596 case lir_logic_xor:
597 case lir_shl:
598 case lir_shr:
599 case lir_ushr:
600 case lir_xadd:
601 case lir_xchg:
602 case lir_assert:
603 {
604 assert(op->as_Op2() != nullptr, "must be");
605 LIR_Op2* op2 = (LIR_Op2*)op;
606 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
607 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
608
609 if (op2->_info) do_info(op2->_info);
610 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
611 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
612 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
613 if (op2->_result->is_valid()) do_output(op2->_result);
614 if (op->code() == lir_xchg || op->code() == lir_xadd) {
615 // on ARM and PPC, return value is loaded first so could
616 // destroy inputs. On other platforms that implement those
617 // (x86, sparc), the extra constrainsts are harmless.
618 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
619 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
620 }
621
622 break;
623 }
624
625 // special handling for cmove: right input operand must not be equal
626 // to the result operand, otherwise the backend fails
627 case lir_cmove:
628 {
629 assert(op->as_Op4() != nullptr, "must be");
630 LIR_Op4* op4 = (LIR_Op4*)op;
631
632 assert(op4->_info == nullptr && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() &&
633 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used");
634 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used");
635
636 do_input(op4->_opr1);
637 do_input(op4->_opr2);
638 if (op4->_opr3->is_valid()) do_input(op4->_opr3);
639 if (op4->_opr4->is_valid()) do_input(op4->_opr4);
640 do_temp(op4->_opr2);
641 do_output(op4->_result);
642
643 break;
644 }
645
646 // vspecial handling for strict operations: register input operands
647 // as temp to guarantee that they do not overlap with other
648 // registers
649 case lir_mul:
650 case lir_div:
651 {
652 assert(op->as_Op2() != nullptr, "must be");
653 LIR_Op2* op2 = (LIR_Op2*)op;
654
655 assert(op2->_info == nullptr, "not used");
656 assert(op2->_opr1->is_valid(), "used");
657 assert(op2->_opr2->is_valid(), "used");
658 assert(op2->_result->is_valid(), "used");
659 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
660 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
661
662 do_input(op2->_opr1); do_temp(op2->_opr1);
663 do_input(op2->_opr2); do_temp(op2->_opr2);
664 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
665 do_output(op2->_result);
666
667 break;
668 }
669
670 case lir_throw: {
671 assert(op->as_Op2() != nullptr, "must be");
672 LIR_Op2* op2 = (LIR_Op2*)op;
673
674 if (op2->_info) do_info(op2->_info);
675 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
676 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
677 assert(op2->_result->is_illegal(), "no result");
678 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
679 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
680
681 break;
682 }
683
684 case lir_unwind: {
685 assert(op->as_Op1() != nullptr, "must be");
686 LIR_Op1* op1 = (LIR_Op1*)op;
687
688 assert(op1->_info == nullptr, "no info");
689 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
690 assert(op1->_tmp->is_illegal(), "not used");
691 assert(op1->_result->is_illegal(), "no result");
692
693 break;
694 }
695
696 // LIR_Op3
697 case lir_idiv:
698 case lir_irem: {
699 assert(op->as_Op3() != nullptr, "must be");
700 LIR_Op3* op3= (LIR_Op3*)op;
701
702 if (op3->_info) do_info(op3->_info);
703 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
704
705 // second operand is input and temp, so ensure that second operand
706 // and third operand get not the same register
707 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
708 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
709 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
710
711 if (op3->_result->is_valid()) do_output(op3->_result);
712
713 break;
714 }
715
716 case lir_fmad:
717 case lir_fmaf: {
718 assert(op->as_Op3() != nullptr, "must be");
719 LIR_Op3* op3= (LIR_Op3*)op;
720 assert(op3->_info == nullptr, "no info");
721 do_input(op3->_opr1);
722 do_input(op3->_opr2);
723 do_input(op3->_opr3);
724 do_output(op3->_result);
725 break;
726 }
727
728 // LIR_OpJavaCall
729 case lir_static_call:
730 case lir_optvirtual_call:
731 case lir_icvirtual_call:
732 case lir_dynamic_call: {
733 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
734 assert(opJavaCall != nullptr, "must be");
735
736 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
737
738 // only visit register parameters
739 int n = opJavaCall->_arguments->length();
740 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
741 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
742 do_input(*opJavaCall->_arguments->adr_at(i));
743 }
744 }
745
746 if (opJavaCall->_info) do_info(opJavaCall->_info);
747 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
748 opJavaCall->is_method_handle_invoke()) {
749 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
750 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
751 }
752 do_call();
753 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
754
755 break;
756 }
757
758
759 // LIR_OpRTCall
760 case lir_rtcall: {
761 assert(op->as_OpRTCall() != nullptr, "must be");
762 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
763
764 // only visit register parameters
765 int n = opRTCall->_arguments->length();
766 for (int i = 0; i < n; i++) {
767 if (!opRTCall->_arguments->at(i)->is_pointer()) {
768 do_input(*opRTCall->_arguments->adr_at(i));
769 }
770 }
771 if (opRTCall->_info) do_info(opRTCall->_info);
772 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
773 do_call();
774 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
775
776 break;
777 }
778
779
780 // LIR_OpArrayCopy
781 case lir_arraycopy: {
782 assert(op->as_OpArrayCopy() != nullptr, "must be");
783 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
784
785 assert(opArrayCopy->_result->is_illegal(), "unused");
786 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
787 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
788 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
789 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
790 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
791 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
792 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
793
794 // the implementation of arraycopy always has a call into the runtime
795 do_call();
796
797 break;
798 }
799
800
801 // LIR_OpUpdateCRC32
802 case lir_updatecrc32: {
803 assert(op->as_OpUpdateCRC32() != nullptr, "must be");
804 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
805
806 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
807 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
808 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
809 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32");
810
811 break;
812 }
813
814
815 // LIR_OpLock
816 case lir_lock:
817 case lir_unlock: {
818 assert(op->as_OpLock() != nullptr, "must be");
819 LIR_OpLock* opLock = (LIR_OpLock*)op;
820
821 if (opLock->_info) do_info(opLock->_info);
822
823 // TODO: check if these operands really have to be temp
824 // (or if input is sufficient). This may have influence on the oop map!
825 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
826 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
827 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
828
829 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
830 assert(opLock->_result->is_illegal(), "unused");
831
832 do_stub(opLock->_stub);
833 do_stub(opLock->_throw_ie_stub);
834
835 break;
836 }
837
838
839 // LIR_OpDelay
840 case lir_delay_slot: {
841 assert(op->as_OpDelay() != nullptr, "must be");
842 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
843
844 visit(opDelay->delay_op());
845 break;
846 }
847
848 // LIR_OpTypeCheck
849 case lir_instanceof:
850 case lir_checkcast:
851 case lir_store_check: {
852 assert(op->as_OpTypeCheck() != nullptr, "must be");
853 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
854
855 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
856 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
857 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
858 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
859 do_temp(opTypeCheck->_object);
860 }
861 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
862 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
863 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
864 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
865 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
866 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
867 break;
868 }
869
870 // LIR_OpFlattenedArrayCheck
871 case lir_flat_array_check: {
872 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
873 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
874
875 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
876 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
877 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
878
879 do_stub(opFlattenedArrayCheck->_stub);
880
881 break;
882 }
883
884 // LIR_OpNullFreeArrayCheck
885 case lir_null_free_array_check: {
886 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
887 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
888
889 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
890 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
891 break;
892 }
893
894 // LIR_OpSubstitutabilityCheck
895 case lir_substitutability_check: {
896 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
897 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
898 do_input(opSubstitutabilityCheck->_left);
899 do_temp (opSubstitutabilityCheck->_left);
900 do_input(opSubstitutabilityCheck->_right);
901 do_temp (opSubstitutabilityCheck->_right);
902 do_input(opSubstitutabilityCheck->_equal_result);
903 do_temp (opSubstitutabilityCheck->_equal_result);
904 do_input(opSubstitutabilityCheck->_not_equal_result);
905 do_temp (opSubstitutabilityCheck->_not_equal_result);
906 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
907 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
908 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
909 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
910 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
911
912 do_info(opSubstitutabilityCheck->_info);
913 do_stub(opSubstitutabilityCheck->_stub);
914 break;
915 }
916
917 // LIR_OpCompareAndSwap
918 case lir_cas_long:
919 case lir_cas_obj:
920 case lir_cas_int: {
921 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
922 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
923
924 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
925 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
926 do_temp(opCmpAndSwap->_addr);
927 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
928 do_temp(opCmpAndSwap->_cmp_value);
929 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
930 do_temp(opCmpAndSwap->_new_value);
931 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
932 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
933 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
934
935 break;
936 }
937
938
939 // LIR_OpAllocArray;
940 case lir_alloc_array: {
941 assert(op->as_OpAllocArray() != nullptr, "must be");
942 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
943
944 if (opAllocArray->_info) do_info(opAllocArray->_info);
945 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
946 do_temp(opAllocArray->_klass);
947 }
948 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
949 do_temp(opAllocArray->_len);
950 }
951 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
952 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
953 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
954 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
955 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
956 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
957 break;
958 }
959
960 // LIR_OpLoadKlass
961 case lir_load_klass:
962 {
963 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
964 assert(opLoadKlass != nullptr, "must be");
965
966 do_input(opLoadKlass->_obj);
967 do_output(opLoadKlass->_result);
968 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
969 break;
970 }
971
972
973 // LIR_OpProfileCall:
974 case lir_profile_call: {
975 assert(op->as_OpProfileCall() != nullptr, "must be");
976 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
977
978 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
979 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
980 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
981 break;
982 }
983
984 // LIR_OpProfileType:
985 case lir_profile_type: {
986 assert(op->as_OpProfileType() != nullptr, "must be");
987 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
988
989 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
990 do_input(opProfileType->_obj);
991 do_temp(opProfileType->_tmp);
992 break;
993 }
994
995 // LIR_OpProfileInlineType:
996 case lir_profile_inline_type: {
997 assert(op->as_OpProfileInlineType() != nullptr, "must be");
998 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
999
1000 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1001 do_input(opProfileInlineType->_obj);
1002 do_temp(opProfileInlineType->_tmp);
1003 break;
1004 }
1005 default:
1006 op->visit(this);
1007 }
1008 }
1009
1010 void LIR_Op::visit(LIR_OpVisitState* state) {
1011 ShouldNotReachHere();
1012 }
1013
1014 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1015 if (stub != nullptr) {
1016 stub->visit(this);
1017 }
1018 }
1019
1020 XHandlers* LIR_OpVisitState::all_xhandler() {
1021 XHandlers* result = nullptr;
1022
1023 int i;
1024 for (i = 0; i < info_count(); i++) {
1025 if (info_at(i)->exception_handlers() != nullptr) {
1026 result = info_at(i)->exception_handlers();
1027 break;
1028 }
1029 }
1030
1031 #ifdef ASSERT
1032 for (i = 0; i < info_count(); i++) {
1033 assert(info_at(i)->exception_handlers() == nullptr ||
1034 info_at(i)->exception_handlers() == result,
1035 "only one xhandler list allowed per LIR-operation");
1036 }
1037 #endif
1038
1039 if (result != nullptr) {
1040 return result;
1041 } else {
1042 return new XHandlers();
1043 }
1044
1045 return result;
1046 }
1047
1048
1049 #ifdef ASSERT
1050 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1051 visit(op);
1052
1053 return opr_count(inputMode) == 0 &&
1054 opr_count(outputMode) == 0 &&
1055 opr_count(tempMode) == 0 &&
1056 info_count() == 0 &&
1057 !has_call() &&
1058 !has_slow_case();
1059 }
1060 #endif
1061
1062 // LIR_OpReturn
1063 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1064 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1065 _stub(nullptr) {
1066 if (VM_Version::supports_stack_watermark_barrier()) {
1067 _stub = new C1SafepointPollStub();
1068 }
1069 }
1070
1071 //---------------------------------------------------
1072
1073
1074 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1075 masm->emit_call(this);
1076 }
1077
1078 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1079 ciType* return_type = method()->return_type();
1080 if (InlineTypeReturnedAsFields) {
1081 if (return_type->is_inlinetype()) {
1082 ciInlineKlass* vk = return_type->as_inline_klass();
1083 if (vk->can_be_returned_as_fields()) {
1084 if (vk_ret != nullptr) {
1085 *vk_ret = vk;
1086 }
1087 return true;
1088 }
1089 } else if (return_type->is_instance_klass() &&
1090 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1091 StressCallingConvention)) {
1092 // An inline type might be returned from the call but we don't know its type.
1093 // This can happen with method handle intrinsics or when the return type is
1094 // not loaded (method holder is not loaded or preload attribute is missing).
1095 // If an inline type is returned, we either get an oop to a buffer and nothing
1096 // needs to be done or one of the values being returned is the klass of the
1097 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1098 // type instance of that type and initialize it with the fields values being
1099 // returned in other registers.
1100 return true;
1101 }
1102 }
1103 return false;
1104 }
1105
1106 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1107 masm->emit_rtcall(this);
1108 }
1109
1110 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1111 masm->emit_opLabel(this);
1112 }
1113
1114 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1115 masm->emit_arraycopy(this);
1116 ArrayCopyStub* code_stub = stub();
1117 if (code_stub != nullptr) {
1118 masm->append_code_stub(code_stub);
1119 }
1120 }
1121
1122 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1123 masm->emit_updatecrc32(this);
1124 }
1125
1126 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1127 masm->emit_op0(this);
1128 }
1129
1130 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1131 masm->emit_op1(this);
1132 }
1133
1134 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1135 masm->emit_alloc_obj(this);
1136 masm->append_code_stub(stub());
1137 }
1138
1139 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1140 masm->emit_opBranch(this);
1141 if (stub()) {
1142 masm->append_code_stub(stub());
1143 }
1144 }
1145
1146 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1147 masm->emit_opConvert(this);
1148 if (stub() != nullptr) {
1149 masm->append_code_stub(stub());
1150 }
1151 }
1152
1153 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1154 masm->emit_op2(this);
1155 }
1156
1157 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1158 masm->emit_alloc_array(this);
1159 masm->append_code_stub(stub());
1160 }
1161
1162 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1163 masm->emit_opTypeCheck(this);
1164 if (stub()) {
1165 masm->append_code_stub(stub());
1166 }
1167 }
1168
1169 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1170 masm->emit_opFlattenedArrayCheck(this);
1171 if (stub() != nullptr) {
1172 masm->append_code_stub(stub());
1173 }
1174 }
1175
1176 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1177 masm->emit_opNullFreeArrayCheck(this);
1178 }
1179
1180 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1181 masm->emit_opSubstitutabilityCheck(this);
1182 if (stub() != nullptr) {
1183 masm->append_code_stub(stub());
1184 }
1185 }
1186
1187 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1188 masm->emit_compare_and_swap(this);
1189 }
1190
1191 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1192 masm->emit_op3(this);
1193 }
1194
1195 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1196 masm->emit_op4(this);
1197 }
1198
1199 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1200 masm->emit_lock(this);
1201 if (stub()) {
1202 masm->append_code_stub(stub());
1203 }
1204 if (throw_ie_stub()) {
1205 masm->append_code_stub(throw_ie_stub());
1206 }
1207 }
1208
1209 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1210 masm->emit_load_klass(this);
1211 }
1212
1213 #ifdef ASSERT
1214 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1215 masm->emit_assert(this);
1216 }
1217 #endif
1218
1219 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1220 masm->emit_delay(this);
1221 }
1222
1223 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1224 masm->emit_profile_call(this);
1225 }
1226
1227 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1228 masm->emit_profile_type(this);
1229 }
1230
1231 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1232 masm->emit_profile_inline_type(this);
1233 }
1234
1235 // LIR_List
1236 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1237 : _operations(8)
1238 , _compilation(compilation)
1239 #ifndef PRODUCT
1240 , _block(block)
1241 #endif
1242 #ifdef ASSERT
1243 , _file(nullptr)
1244 , _line(0)
1245 #endif
1246 #ifdef RISCV
1247 , _cmp_opr1(LIR_OprFact::illegalOpr)
1248 , _cmp_opr2(LIR_OprFact::illegalOpr)
1249 #endif
1250 { }
1251
1252
1253 #ifdef ASSERT
1254 void LIR_List::set_file_and_line(const char * file, int line) {
1255 const char * f = strrchr(file, '/');
1256 if (f == nullptr) f = strrchr(file, '\\');
1257 if (f == nullptr) {
1258 f = file;
1259 } else {
1260 f++;
1261 }
1262 _file = f;
1263 _line = line;
1264 }
1265 #endif
1266
1267 #ifdef RISCV
1268 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1269 switch (op->code()) {
1270 case lir_cmp:
1271 _cmp_opr1 = op->as_Op2()->in_opr1();
1272 _cmp_opr2 = op->as_Op2()->in_opr2();
1273 break;
1274 case lir_branch: // fall through
1275 case lir_cond_float_branch:
1276 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1277 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1278 "conditional branches must have legal operands");
1279 if (op->as_OpBranch()->cond() != lir_cond_always) {
1280 op->as_Op2()->set_in_opr1(_cmp_opr1);
1281 op->as_Op2()->set_in_opr2(_cmp_opr2);
1282 }
1283 break;
1284 case lir_cmove:
1285 op->as_Op4()->set_in_opr3(_cmp_opr1);
1286 op->as_Op4()->set_in_opr4(_cmp_opr2);
1287 break;
1288 case lir_cas_long:
1289 case lir_cas_obj:
1290 case lir_cas_int:
1291 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr();
1292 _cmp_opr2 = LIR_OprFact::intConst(0);
1293 break;
1294 #if INCLUDE_ZGC
1295 case lir_xloadbarrier_test:
1296 _cmp_opr1 = FrameMap::as_opr(t1);
1297 _cmp_opr2 = LIR_OprFact::intConst(0);
1298 break;
1299 #endif
1300 default:
1301 break;
1302 }
1303 }
1304 #endif
1305
1306 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1307 assert(this == buffer->lir_list(), "wrong lir list");
1308 const int n = _operations.length();
1309
1310 if (buffer->number_of_ops() > 0) {
1311 // increase size of instructions list
1312 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr);
1313 // insert ops from buffer into instructions list
1314 int op_index = buffer->number_of_ops() - 1;
1315 int ip_index = buffer->number_of_insertion_points() - 1;
1316 int from_index = n - 1;
1317 int to_index = _operations.length() - 1;
1318 for (; ip_index >= 0; ip_index --) {
1319 int index = buffer->index_at(ip_index);
1320 // make room after insertion point
1321 while (index < from_index) {
1322 _operations.at_put(to_index --, _operations.at(from_index --));
1323 }
1324 // insert ops from buffer
1325 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1326 _operations.at_put(to_index --, buffer->op_at(op_index --));
1327 }
1328 }
1329 }
1330
1331 buffer->finish();
1332 }
1333
1334
1335 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1336 assert(reg->type() == T_OBJECT, "bad reg");
1337 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1338 }
1339
1340 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1341 assert(reg->type() == T_METADATA, "bad reg");
1342 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1343 }
1344
1345 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1346 append(new LIR_Op1(
1347 lir_move,
1348 LIR_OprFact::address(addr),
1349 src,
1350 addr->type(),
1351 patch_code,
1352 info));
1353 }
1354
1355
1356 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1357 append(new LIR_Op1(
1358 lir_move,
1359 LIR_OprFact::address(address),
1360 dst,
1361 address->type(),
1362 patch_code,
1363 info, lir_move_volatile));
1364 }
1365
1366 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1367 append(new LIR_Op1(
1368 lir_move,
1369 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1370 dst,
1371 type,
1372 patch_code,
1373 info, lir_move_volatile));
1374 }
1375
1376
1377 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1378 append(new LIR_Op1(
1379 lir_move,
1380 LIR_OprFact::intConst(v),
1381 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1382 type,
1383 patch_code,
1384 info));
1385 }
1386
1387
1388 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1389 append(new LIR_Op1(
1390 lir_move,
1391 LIR_OprFact::oopConst(o),
1392 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1393 type,
1394 patch_code,
1395 info));
1396 }
1397
1398
1399 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1400 append(new LIR_Op1(
1401 lir_move,
1402 src,
1403 LIR_OprFact::address(addr),
1404 addr->type(),
1405 patch_code,
1406 info));
1407 }
1408
1409
1410 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1411 append(new LIR_Op1(
1412 lir_move,
1413 src,
1414 LIR_OprFact::address(addr),
1415 addr->type(),
1416 patch_code,
1417 info,
1418 lir_move_volatile));
1419 }
1420
1421 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1422 append(new LIR_Op1(
1423 lir_move,
1424 src,
1425 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1426 type,
1427 patch_code,
1428 info, lir_move_volatile));
1429 }
1430
1431
1432 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1433 append(new LIR_Op3(
1434 lir_idiv,
1435 left,
1436 right,
1437 tmp,
1438 res,
1439 info));
1440 }
1441
1442
1443 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1444 append(new LIR_Op3(
1445 lir_idiv,
1446 left,
1447 LIR_OprFact::intConst(right),
1448 tmp,
1449 res,
1450 info));
1451 }
1452
1453
1454 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1455 append(new LIR_Op3(
1456 lir_irem,
1457 left,
1458 right,
1459 tmp,
1460 res,
1461 info));
1462 }
1463
1464
1465 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1466 append(new LIR_Op3(
1467 lir_irem,
1468 left,
1469 LIR_OprFact::intConst(right),
1470 tmp,
1471 res,
1472 info));
1473 }
1474
1475
1476 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1477 append(new LIR_Op2(
1478 lir_cmp,
1479 condition,
1480 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1481 LIR_OprFact::intConst(c),
1482 info));
1483 }
1484
1485
1486 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1487 append(new LIR_Op2(
1488 lir_cmp,
1489 condition,
1490 reg,
1491 LIR_OprFact::address(addr),
1492 info));
1493 }
1494
1495 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1496 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1497 append(new LIR_OpAllocObj(
1498 klass,
1499 dst,
1500 t1,
1501 t2,
1502 t3,
1503 t4,
1504 header_size,
1505 object_size,
1506 init_check,
1507 stub));
1508 }
1509
1510 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub, bool zero_array, bool always_slow_path) {
1511 append(new LIR_OpAllocArray(
1512 klass,
1513 len,
1514 dst,
1515 t1,
1516 t2,
1517 t3,
1518 t4,
1519 type,
1520 stub,
1521 zero_array,
1522 always_slow_path));
1523 }
1524
1525 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1526 append(new LIR_Op2(
1527 lir_shl,
1528 value,
1529 count,
1530 dst,
1531 tmp));
1532 }
1533
1534 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1535 append(new LIR_Op2(
1536 lir_shr,
1537 value,
1538 count,
1539 dst,
1540 tmp));
1541 }
1542
1543
1544 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1545 append(new LIR_Op2(
1546 lir_ushr,
1547 value,
1548 count,
1549 dst,
1550 tmp));
1551 }
1552
1553 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1554 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1555 left,
1556 right,
1557 dst));
1558 }
1559
1560 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) {
1561 append(new LIR_OpLock(
1562 lir_lock,
1563 hdr,
1564 obj,
1565 lock,
1566 scratch,
1567 stub,
1568 info,
1569 throw_ie_stub));
1570 }
1571
1572 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1573 append(new LIR_OpLock(
1574 lir_unlock,
1575 hdr,
1576 obj,
1577 lock,
1578 scratch,
1579 stub,
1580 nullptr));
1581 }
1582
1583
1584 void check_LIR() {
1585 // cannot do the proper checking as PRODUCT and other modes return different results
1586 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1587 }
1588
1589
1590
1591 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1592 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1593 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1594 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1595 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1596 // on the object.
1597 bool need_null_check = !is_null_free;
1598 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1599 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1600 need_null_check);
1601 if (profiled_method != nullptr && TypeProfileCasts) {
1602 c->set_profiled_method(profiled_method);
1603 c->set_profiled_bci(profiled_bci);
1604 c->set_should_profile(true);
1605 }
1606 append(c);
1607 }
1608
1609 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) {
1610 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1611 if (profiled_method != nullptr && TypeProfileCasts) {
1612 c->set_profiled_method(profiled_method);
1613 c->set_profiled_bci(profiled_bci);
1614 c->set_should_profile(true);
1615 }
1616 append(c);
1617 }
1618
1619
1620 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1621 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1622 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1623 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1624 if (profiled_method != nullptr && TypeProfileCasts) {
1625 c->set_profiled_method(profiled_method);
1626 c->set_profiled_bci(profiled_bci);
1627 c->set_should_profile(true);
1628 }
1629 append(c);
1630 }
1631
1632 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1633 if (deoptimize_on_null) {
1634 // Emit an explicit null check and deoptimize if opr is null
1635 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1636 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1637 branch(lir_cond_equal, deopt);
1638 } else {
1639 // Emit an implicit null check
1640 append(new LIR_Op1(lir_null_check, opr, info));
1641 }
1642 }
1643
1644 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1645 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1646 append(c);
1647 }
1648
1649 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1650 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1651 append(c);
1652 }
1653
1654 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1655 LIR_Opr tmp1, LIR_Opr tmp2,
1656 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1657 CodeEmitInfo* info, CodeStub* stub) {
1658 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1659 tmp1, tmp2,
1660 left_klass, right_klass, left_klass_op, right_klass_op,
1661 info, stub);
1662 append(c);
1663 }
1664
1665 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1666 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1667 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1668 }
1669
1670 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1671 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1672 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1673 }
1674
1675 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1676 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1677 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1678 }
1679
1680
1681 #ifdef PRODUCT
1682
1683 void print_LIR(BlockList* blocks) {
1684 }
1685
1686 #else
1687 // LIR_Opr
1688 void LIR_Opr::print() const {
1689 print(tty);
1690 }
1691
1692 void LIR_Opr::print(outputStream* out) const {
1693 if (is_illegal()) {
1694 return;
1695 }
1696
1697 out->print("[");
1698 if (is_pointer()) {
1699 pointer()->print_value_on(out);
1700 } else if (is_single_stack()) {
1701 out->print("stack:%d", single_stack_ix());
1702 } else if (is_double_stack()) {
1703 out->print("dbl_stack:%d",double_stack_ix());
1704 } else if (is_virtual()) {
1705 out->print("R%d", vreg_number());
1706 } else if (is_single_cpu()) {
1707 out->print("%s", as_register()->name());
1708 } else if (is_double_cpu()) {
1709 out->print("%s", as_register_hi()->name());
1710 out->print("%s", as_register_lo()->name());
1711 #if defined(X86)
1712 } else if (is_single_xmm()) {
1713 out->print("%s", as_xmm_float_reg()->name());
1714 } else if (is_double_xmm()) {
1715 out->print("%s", as_xmm_double_reg()->name());
1716 } else if (is_single_fpu()) {
1717 out->print("fpu%d", fpu_regnr());
1718 } else if (is_double_fpu()) {
1719 out->print("fpu%d", fpu_regnrLo());
1720 #elif defined(AARCH64)
1721 } else if (is_single_fpu()) {
1722 out->print("fpu%d", fpu_regnr());
1723 } else if (is_double_fpu()) {
1724 out->print("fpu%d", fpu_regnrLo());
1725 #elif defined(ARM)
1726 } else if (is_single_fpu()) {
1727 out->print("s%d", fpu_regnr());
1728 } else if (is_double_fpu()) {
1729 out->print("d%d", fpu_regnrLo() >> 1);
1730 #else
1731 } else if (is_single_fpu()) {
1732 out->print("%s", as_float_reg()->name());
1733 } else if (is_double_fpu()) {
1734 out->print("%s", as_double_reg()->name());
1735 #endif
1736
1737 } else if (is_illegal()) {
1738 out->print("-");
1739 } else {
1740 out->print("Unknown Operand");
1741 }
1742 if (!is_illegal()) {
1743 out->print("|%c", type_char());
1744 }
1745 if (is_register() && is_last_use()) {
1746 out->print("(last_use)");
1747 }
1748 out->print("]");
1749 }
1750
1751
1752 // LIR_Address
1753 void LIR_Const::print_value_on(outputStream* out) const {
1754 switch (type()) {
1755 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1756 case T_INT: out->print("int:%d", as_jint()); break;
1757 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1758 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1759 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1760 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1761 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1762 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1763 }
1764 }
1765
1766 // LIR_Address
1767 void LIR_Address::print_value_on(outputStream* out) const {
1768 out->print("Base:"); _base->print(out);
1769 if (!_index->is_illegal()) {
1770 out->print(" Index:"); _index->print(out);
1771 switch (scale()) {
1772 case times_1: break;
1773 case times_2: out->print(" * 2"); break;
1774 case times_4: out->print(" * 4"); break;
1775 case times_8: out->print(" * 8"); break;
1776 }
1777 }
1778 out->print(" Disp: %zd", _disp);
1779 }
1780
1781 // debug output of block header without InstructionPrinter
1782 // (because phi functions are not necessary for LIR)
1783 static void print_block(BlockBegin* x) {
1784 // print block id
1785 BlockEnd* end = x->end();
1786 tty->print("B%d ", x->block_id());
1787
1788 // print flags
1789 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1790 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1791 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1792 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1793 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1794 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1795 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1796
1797 // print block bci range
1798 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci()));
1799
1800 // print predecessors and successors
1801 if (x->number_of_preds() > 0) {
1802 tty->print("preds: ");
1803 for (int i = 0; i < x->number_of_preds(); i ++) {
1804 tty->print("B%d ", x->pred_at(i)->block_id());
1805 }
1806 }
1807
1808 if (end != nullptr && x->number_of_sux() > 0) {
1809 tty->print("sux: ");
1810 for (int i = 0; i < x->number_of_sux(); i ++) {
1811 tty->print("B%d ", x->sux_at(i)->block_id());
1812 }
1813 }
1814
1815 // print exception handlers
1816 if (x->number_of_exception_handlers() > 0) {
1817 tty->print("xhandler: ");
1818 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1819 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1820 }
1821 }
1822
1823 tty->cr();
1824 }
1825
1826 void print_LIR(BlockList* blocks) {
1827 tty->print_cr("LIR:");
1828 int i;
1829 for (i = 0; i < blocks->length(); i++) {
1830 BlockBegin* bb = blocks->at(i);
1831 print_block(bb);
1832 tty->print("__id_Instruction___________________________________________"); tty->cr();
1833 bb->lir()->print_instructions();
1834 }
1835 }
1836
1837 void LIR_List::print_instructions() {
1838 for (int i = 0; i < _operations.length(); i++) {
1839 _operations.at(i)->print(); tty->cr();
1840 }
1841 tty->cr();
1842 }
1843
1844 // LIR_Ops printing routines
1845 // LIR_Op
1846 void LIR_Op::print_on(outputStream* out) const {
1847 if (id() != -1 || PrintCFGToFile) {
1848 out->print("%4d ", id());
1849 } else {
1850 out->print(" ");
1851 }
1852 out->print("%s ", name());
1853 print_instr(out);
1854 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci());
1855 #ifdef ASSERT
1856 if (Verbose && _file != nullptr) {
1857 out->print(" (%s:%d)", _file, _line);
1858 }
1859 #endif
1860 }
1861
1862 const char * LIR_Op::name() const {
1863 const char* s = nullptr;
1864 switch(code()) {
1865 // LIR_Op0
1866 case lir_membar: s = "membar"; break;
1867 case lir_membar_acquire: s = "membar_acquire"; break;
1868 case lir_membar_release: s = "membar_release"; break;
1869 case lir_membar_loadload: s = "membar_loadload"; break;
1870 case lir_membar_storestore: s = "membar_storestore"; break;
1871 case lir_membar_loadstore: s = "membar_loadstore"; break;
1872 case lir_membar_storeload: s = "membar_storeload"; break;
1873 case lir_label: s = "label"; break;
1874 case lir_nop: s = "nop"; break;
1875 case lir_on_spin_wait: s = "on_spin_wait"; break;
1876 case lir_std_entry: s = "std_entry"; break;
1877 case lir_osr_entry: s = "osr_entry"; break;
1878 case lir_breakpoint: s = "breakpoint"; break;
1879 case lir_get_thread: s = "get_thread"; break;
1880 case lir_check_orig_pc: s = "check_orig_pc"; break;
1881 // LIR_Op1
1882 case lir_push: s = "push"; break;
1883 case lir_pop: s = "pop"; break;
1884 case lir_null_check: s = "null_check"; break;
1885 case lir_return: s = "return"; break;
1886 case lir_safepoint: s = "safepoint"; break;
1887 case lir_leal: s = "leal"; break;
1888 case lir_branch: s = "branch"; break;
1889 case lir_cond_float_branch: s = "flt_cond_br"; break;
1890 case lir_move: s = "move"; break;
1891 case lir_abs: s = "abs"; break;
1892 case lir_neg: s = "neg"; break;
1893 case lir_sqrt: s = "sqrt"; break;
1894 case lir_f2hf: s = "f2hf"; break;
1895 case lir_hf2f: s = "hf2f"; break;
1896 case lir_rtcall: s = "rtcall"; break;
1897 case lir_throw: s = "throw"; break;
1898 case lir_unwind: s = "unwind"; break;
1899 case lir_convert: s = "convert"; break;
1900 case lir_alloc_object: s = "alloc_obj"; break;
1901 case lir_monaddr: s = "mon_addr"; break;
1902 // LIR_Op2
1903 case lir_cmp: s = "cmp"; break;
1904 case lir_cmp_l2i: s = "cmp_l2i"; break;
1905 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1906 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1907 case lir_add: s = "add"; break;
1908 case lir_sub: s = "sub"; break;
1909 case lir_mul: s = "mul"; break;
1910 case lir_div: s = "div"; break;
1911 case lir_rem: s = "rem"; break;
1912 case lir_logic_and: s = "logic_and"; break;
1913 case lir_logic_or: s = "logic_or"; break;
1914 case lir_logic_xor: s = "logic_xor"; break;
1915 case lir_shl: s = "shift_left"; break;
1916 case lir_shr: s = "shift_right"; break;
1917 case lir_ushr: s = "ushift_right"; break;
1918 case lir_alloc_array: s = "alloc_array"; break;
1919 case lir_xadd: s = "xadd"; break;
1920 case lir_xchg: s = "xchg"; break;
1921 // LIR_Op3
1922 case lir_idiv: s = "idiv"; break;
1923 case lir_irem: s = "irem"; break;
1924 case lir_fmad: s = "fmad"; break;
1925 case lir_fmaf: s = "fmaf"; break;
1926 // LIR_Op4
1927 case lir_cmove: s = "cmove"; break;
1928 // LIR_OpJavaCall
1929 case lir_static_call: s = "static"; break;
1930 case lir_optvirtual_call: s = "optvirtual"; break;
1931 case lir_icvirtual_call: s = "icvirtual"; break;
1932 case lir_dynamic_call: s = "dynamic"; break;
1933 // LIR_OpArrayCopy
1934 case lir_arraycopy: s = "arraycopy"; break;
1935 // LIR_OpUpdateCRC32
1936 case lir_updatecrc32: s = "updatecrc32"; break;
1937 // LIR_OpLock
1938 case lir_lock: s = "lock"; break;
1939 case lir_unlock: s = "unlock"; break;
1940 // LIR_OpDelay
1941 case lir_delay_slot: s = "delay"; break;
1942 // LIR_OpTypeCheck
1943 case lir_instanceof: s = "instanceof"; break;
1944 case lir_checkcast: s = "checkcast"; break;
1945 case lir_store_check: s = "store_check"; break;
1946 // LIR_OpFlattenedArrayCheck
1947 case lir_flat_array_check: s = "flat_array_check"; break;
1948 // LIR_OpNullFreeArrayCheck
1949 case lir_null_free_array_check: s = "null_free_array_check"; break;
1950 // LIR_OpSubstitutabilityCheck
1951 case lir_substitutability_check: s = "substitutability_check"; break;
1952 // LIR_OpCompareAndSwap
1953 case lir_cas_long: s = "cas_long"; break;
1954 case lir_cas_obj: s = "cas_obj"; break;
1955 case lir_cas_int: s = "cas_int"; break;
1956 // LIR_OpProfileCall
1957 case lir_profile_call: s = "profile_call"; break;
1958 // LIR_OpProfileType
1959 case lir_profile_type: s = "profile_type"; break;
1960 // LIR_OpProfileInlineType
1961 case lir_profile_inline_type: s = "profile_inline_type"; break;
1962 // LIR_OpAssert
1963 #ifdef ASSERT
1964 case lir_assert: s = "assert"; break;
1965 #endif
1966 case lir_none: ShouldNotReachHere();break;
1967 default: s = "illegal_op"; break;
1968 }
1969 return s;
1970 }
1971
1972 // LIR_OpJavaCall
1973 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1974 out->print("call: ");
1975 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1976 if (receiver()->is_valid()) {
1977 out->print(" [recv: "); receiver()->print(out); out->print("]");
1978 }
1979 if (result_opr()->is_valid()) {
1980 out->print(" [result: "); result_opr()->print(out); out->print("]");
1981 }
1982 }
1983
1984 // LIR_OpLabel
1985 void LIR_OpLabel::print_instr(outputStream* out) const {
1986 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1987 }
1988
1989 // LIR_OpArrayCopy
1990 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1991 src()->print(out); out->print(" ");
1992 src_pos()->print(out); out->print(" ");
1993 dst()->print(out); out->print(" ");
1994 dst_pos()->print(out); out->print(" ");
1995 length()->print(out); out->print(" ");
1996 tmp()->print(out); out->print(" ");
1997 }
1998
1999 // LIR_OpUpdateCRC32
2000 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
2001 crc()->print(out); out->print(" ");
2002 val()->print(out); out->print(" ");
2003 result_opr()->print(out); out->print(" ");
2004 }
2005
2006 // LIR_OpCompareAndSwap
2007 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
2008 addr()->print(out); out->print(" ");
2009 cmp_value()->print(out); out->print(" ");
2010 new_value()->print(out); out->print(" ");
2011 tmp1()->print(out); out->print(" ");
2012 tmp2()->print(out); out->print(" ");
2013
2014 }
2015
2016 // LIR_Op0
2017 void LIR_Op0::print_instr(outputStream* out) const {
2018 result_opr()->print(out);
2019 }
2020
2021 // LIR_Op1
2022 const char * LIR_Op1::name() const {
2023 if (code() == lir_move) {
2024 switch (move_kind()) {
2025 case lir_move_normal:
2026 return "move";
2027 case lir_move_volatile:
2028 return "volatile_move";
2029 case lir_move_wide:
2030 return "wide_move";
2031 default:
2032 ShouldNotReachHere();
2033 return "illegal_op";
2034 }
2035 } else {
2036 return LIR_Op::name();
2037 }
2038 }
2039
2040
2041 void LIR_Op1::print_instr(outputStream* out) const {
2042 _opr->print(out); out->print(" ");
2043 result_opr()->print(out); out->print(" ");
2044 print_patch_code(out, patch_code());
2045 }
2046
2047
2048 // LIR_Op1
2049 void LIR_OpRTCall::print_instr(outputStream* out) const {
2050 intx a = (intx)addr();
2051 out->print("%s", Runtime1::name_for_address(addr()));
2052 out->print(" ");
2053 tmp()->print(out);
2054 }
2055
2056 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2057 switch(code) {
2058 case lir_patch_none: break;
2059 case lir_patch_low: out->print("[patch_low]"); break;
2060 case lir_patch_high: out->print("[patch_high]"); break;
2061 case lir_patch_normal: out->print("[patch_normal]"); break;
2062 default: ShouldNotReachHere();
2063 }
2064 }
2065
2066 // LIR_OpBranch
2067 void LIR_OpBranch::print_instr(outputStream* out) const {
2068 print_condition(out, cond()); out->print(" ");
2069 in_opr1()->print(out); out->print(" ");
2070 in_opr2()->print(out); out->print(" ");
2071 if (block() != nullptr) {
2072 out->print("[B%d] ", block()->block_id());
2073 } else if (stub() != nullptr) {
2074 out->print("[");
2075 stub()->print_name(out);
2076 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2077 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2078 } else {
2079 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2080 }
2081 if (ublock() != nullptr) {
2082 out->print("unordered: [B%d] ", ublock()->block_id());
2083 }
2084 }
2085
2086 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2087 switch(cond) {
2088 case lir_cond_equal: out->print("[EQ]"); break;
2089 case lir_cond_notEqual: out->print("[NE]"); break;
2090 case lir_cond_less: out->print("[LT]"); break;
2091 case lir_cond_lessEqual: out->print("[LE]"); break;
2092 case lir_cond_greaterEqual: out->print("[GE]"); break;
2093 case lir_cond_greater: out->print("[GT]"); break;
2094 case lir_cond_belowEqual: out->print("[BE]"); break;
2095 case lir_cond_aboveEqual: out->print("[AE]"); break;
2096 case lir_cond_always: out->print("[AL]"); break;
2097 default: out->print("[%d]",cond); break;
2098 }
2099 }
2100
2101 // LIR_OpConvert
2102 void LIR_OpConvert::print_instr(outputStream* out) const {
2103 print_bytecode(out, bytecode());
2104 in_opr()->print(out); out->print(" ");
2105 result_opr()->print(out); out->print(" ");
2106 }
2107
2108 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2109 switch(code) {
2110 case Bytecodes::_d2f: out->print("[d2f] "); break;
2111 case Bytecodes::_d2i: out->print("[d2i] "); break;
2112 case Bytecodes::_d2l: out->print("[d2l] "); break;
2113 case Bytecodes::_f2d: out->print("[f2d] "); break;
2114 case Bytecodes::_f2i: out->print("[f2i] "); break;
2115 case Bytecodes::_f2l: out->print("[f2l] "); break;
2116 case Bytecodes::_i2b: out->print("[i2b] "); break;
2117 case Bytecodes::_i2c: out->print("[i2c] "); break;
2118 case Bytecodes::_i2d: out->print("[i2d] "); break;
2119 case Bytecodes::_i2f: out->print("[i2f] "); break;
2120 case Bytecodes::_i2l: out->print("[i2l] "); break;
2121 case Bytecodes::_i2s: out->print("[i2s] "); break;
2122 case Bytecodes::_l2i: out->print("[l2i] "); break;
2123 case Bytecodes::_l2f: out->print("[l2f] "); break;
2124 case Bytecodes::_l2d: out->print("[l2d] "); break;
2125 default:
2126 out->print("[?%d]",code);
2127 break;
2128 }
2129 }
2130
2131 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2132 klass()->print(out); out->print(" ");
2133 obj()->print(out); out->print(" ");
2134 tmp1()->print(out); out->print(" ");
2135 tmp2()->print(out); out->print(" ");
2136 tmp3()->print(out); out->print(" ");
2137 tmp4()->print(out); out->print(" ");
2138 out->print("[hdr:%d]", header_size()); out->print(" ");
2139 out->print("[obj:%d]", object_size()); out->print(" ");
2140 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2141 }
2142
2143 // LIR_Op2
2144 void LIR_Op2::print_instr(outputStream* out) const {
2145 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2146 print_condition(out, condition()); out->print(" ");
2147 }
2148 in_opr1()->print(out); out->print(" ");
2149 in_opr2()->print(out); out->print(" ");
2150 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2151 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2152 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2153 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2154 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2155 result_opr()->print(out);
2156 }
2157
2158 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2159 klass()->print(out); out->print(" ");
2160 len()->print(out); out->print(" ");
2161 obj()->print(out); out->print(" ");
2162 tmp1()->print(out); out->print(" ");
2163 tmp2()->print(out); out->print(" ");
2164 tmp3()->print(out); out->print(" ");
2165 tmp4()->print(out); out->print(" ");
2166 out->print("[type:0x%x]", type()); out->print(" ");
2167 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2168 }
2169
2170
2171 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2172 object()->print(out); out->print(" ");
2173 if (code() == lir_store_check) {
2174 array()->print(out); out->print(" ");
2175 }
2176 if (code() != lir_store_check) {
2177 klass()->print_name_on(out); out->print(" ");
2178 if (fast_check()) out->print("fast_check ");
2179 }
2180 tmp1()->print(out); out->print(" ");
2181 tmp2()->print(out); out->print(" ");
2182 tmp3()->print(out); out->print(" ");
2183 result_opr()->print(out); out->print(" ");
2184 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2185 }
2186
2187 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2188 array()->print(out); out->print(" ");
2189 value()->print(out); out->print(" ");
2190 tmp()->print(out); out->print(" ");
2191 if (stub() != nullptr) {
2192 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2193 }
2194 }
2195
2196 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2197 array()->print(out); out->print(" ");
2198 tmp()->print(out); out->print(" ");
2199 }
2200
2201 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2202 result_opr()->print(out); out->print(" ");
2203 left()->print(out); out->print(" ");
2204 right()->print(out); out->print(" ");
2205 equal_result()->print(out); out->print(" ");
2206 not_equal_result()->print(out); out->print(" ");
2207 tmp1()->print(out); out->print(" ");
2208 tmp2()->print(out); out->print(" ");
2209 if (left_klass() == nullptr) {
2210 out->print("unknown ");
2211 } else {
2212 left_klass()->print(out); out->print(" ");
2213 }
2214 if (right_klass() == nullptr) {
2215 out->print("unknown ");
2216 } else {
2217 right_klass()->print(out); out->print(" ");
2218 }
2219 left_klass_op()->print(out); out->print(" ");
2220 right_klass_op()->print(out); out->print(" ");
2221 if (stub() != nullptr) {
2222 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2223 }
2224 }
2225
2226 // LIR_Op3
2227 void LIR_Op3::print_instr(outputStream* out) const {
2228 in_opr1()->print(out); out->print(" ");
2229 in_opr2()->print(out); out->print(" ");
2230 in_opr3()->print(out); out->print(" ");
2231 result_opr()->print(out);
2232 }
2233
2234 // LIR_Op4
2235 void LIR_Op4::print_instr(outputStream* out) const {
2236 print_condition(out, condition()); out->print(" ");
2237 in_opr1()->print(out); out->print(" ");
2238 in_opr2()->print(out); out->print(" ");
2239 in_opr3()->print(out); out->print(" ");
2240 in_opr4()->print(out); out->print(" ");
2241 result_opr()->print(out);
2242 }
2243
2244 void LIR_OpLock::print_instr(outputStream* out) const {
2245 hdr_opr()->print(out); out->print(" ");
2246 obj_opr()->print(out); out->print(" ");
2247 lock_opr()->print(out); out->print(" ");
2248 if (_scratch->is_valid()) {
2249 _scratch->print(out); out->print(" ");
2250 }
2251 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2252 }
2253
2254 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2255 obj()->print(out); out->print(" ");
2256 result_opr()->print(out); out->print(" ");
2257 }
2258
2259 #ifdef ASSERT
2260 void LIR_OpAssert::print_instr(outputStream* out) const {
2261 print_condition(out, condition()); out->print(" ");
2262 in_opr1()->print(out); out->print(" ");
2263 in_opr2()->print(out); out->print(", \"");
2264 out->print("%s", msg()); out->print("\"");
2265 }
2266 #endif
2267
2268
2269 void LIR_OpDelay::print_instr(outputStream* out) const {
2270 _op->print_on(out);
2271 }
2272
2273
2274 // LIR_OpProfileCall
2275 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2276 profiled_method()->name()->print_symbol_on(out);
2277 out->print(".");
2278 profiled_method()->holder()->name()->print_symbol_on(out);
2279 out->print(" @ %d ", profiled_bci());
2280 mdo()->print(out); out->print(" ");
2281 recv()->print(out); out->print(" ");
2282 tmp1()->print(out); out->print(" ");
2283 }
2284
2285 // LIR_OpProfileType
2286 void LIR_OpProfileType::print_instr(outputStream* out) const {
2287 out->print("exact = ");
2288 if (exact_klass() == nullptr) {
2289 out->print("unknown");
2290 } else {
2291 exact_klass()->print_name_on(out);
2292 }
2293 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2294 out->print(" ");
2295 mdp()->print(out); out->print(" ");
2296 obj()->print(out); out->print(" ");
2297 tmp()->print(out); out->print(" ");
2298 }
2299
2300 // LIR_OpProfileInlineType
2301 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2302 out->print(" flag = %x ", flag());
2303 mdp()->print(out); out->print(" ");
2304 obj()->print(out); out->print(" ");
2305 tmp()->print(out); out->print(" ");
2306 }
2307
2308 #endif // PRODUCT
2309
2310 // Implementation of LIR_InsertionBuffer
2311
2312 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2313 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2314
2315 int i = number_of_insertion_points() - 1;
2316 if (i < 0 || index_at(i) < index) {
2317 append_new(index, 1);
2318 } else {
2319 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2320 assert(count_at(i) > 0, "check");
2321 set_count_at(i, count_at(i) + 1);
2322 }
2323 _ops.push(op);
2324
2325 DEBUG_ONLY(verify());
2326 }
2327
2328 #ifdef ASSERT
2329 void LIR_InsertionBuffer::verify() {
2330 int sum = 0;
2331 int prev_idx = -1;
2332
2333 for (int i = 0; i < number_of_insertion_points(); i++) {
2334 assert(prev_idx < index_at(i), "index must be ordered ascending");
2335 sum += count_at(i);
2336 }
2337 assert(sum == number_of_ops(), "wrong total sum");
2338 }
2339 #endif