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