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