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