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