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 do_call();
748 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
749
750 break;
751 }
752
753
754 // LIR_OpRTCall
755 case lir_rtcall: {
756 assert(op->as_OpRTCall() != nullptr, "must be");
757 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
758
759 // only visit register parameters
760 int n = opRTCall->_arguments->length();
761 for (int i = 0; i < n; i++) {
762 if (!opRTCall->_arguments->at(i)->is_pointer()) {
763 do_input(*opRTCall->_arguments->adr_at(i));
764 }
765 }
766 if (opRTCall->_info) do_info(opRTCall->_info);
767 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
768 do_call();
769 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
770
771 break;
772 }
773
774
775 // LIR_OpArrayCopy
776 case lir_arraycopy: {
777 assert(op->as_OpArrayCopy() != nullptr, "must be");
778 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
779
780 assert(opArrayCopy->_result->is_illegal(), "unused");
781 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
782 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
783 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
784 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
785 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
786 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
787 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
788
789 // the implementation of arraycopy always has a call into the runtime
790 do_call();
791
792 break;
793 }
794
795
796 // LIR_OpUpdateCRC32
797 case lir_updatecrc32: {
798 assert(op->as_OpUpdateCRC32() != nullptr, "must be");
799 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
800
801 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
802 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
803 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
804 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32");
805
806 break;
807 }
808
809
810 // LIR_OpLock
811 case lir_lock:
812 case lir_unlock: {
813 assert(op->as_OpLock() != nullptr, "must be");
814 LIR_OpLock* opLock = (LIR_OpLock*)op;
815
816 if (opLock->_info) do_info(opLock->_info);
817
818 // TODO: check if these operands really have to be temp
819 // (or if input is sufficient). This may have influence on the oop map!
820 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
821 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
822 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
823
824 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
825 assert(opLock->_result->is_illegal(), "unused");
826
827 do_stub(opLock->_stub);
828 do_stub(opLock->_throw_ie_stub);
829
830 break;
831 }
832
833
834 // LIR_OpTypeCheck
835 case lir_instanceof:
836 case lir_checkcast:
837 case lir_store_check: {
838 assert(op->as_OpTypeCheck() != nullptr, "must be");
839 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
840
841 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
842 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
843 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
844 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
845 do_temp(opTypeCheck->_object);
846 }
847 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
848 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
849 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
850 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
851 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
852 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
853 break;
854 }
855
856 // LIR_OpFlattenedArrayCheck
857 case lir_flat_array_check: {
858 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
859 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
860
861 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
862 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
863 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
864
865 do_stub(opFlattenedArrayCheck->_stub);
866
867 break;
868 }
869
870 // LIR_OpNullFreeArrayCheck
871 case lir_null_free_array_check: {
872 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
873 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
874
875 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
876 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
877 break;
878 }
879
880 // LIR_OpSubstitutabilityCheck
881 case lir_substitutability_check: {
882 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
883 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
884 do_input(opSubstitutabilityCheck->_left);
885 do_temp (opSubstitutabilityCheck->_left);
886 do_input(opSubstitutabilityCheck->_right);
887 do_temp (opSubstitutabilityCheck->_right);
888 do_input(opSubstitutabilityCheck->_equal_result);
889 do_temp (opSubstitutabilityCheck->_equal_result);
890 do_input(opSubstitutabilityCheck->_not_equal_result);
891 do_temp (opSubstitutabilityCheck->_not_equal_result);
892 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
893 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
894 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
895 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
896 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
897
898 do_info(opSubstitutabilityCheck->_info);
899 do_stub(opSubstitutabilityCheck->_stub);
900 break;
901 }
902
903 // LIR_OpCompareAndSwap
904 case lir_cas_long:
905 case lir_cas_obj:
906 case lir_cas_int: {
907 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
908 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
909
910 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
911 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
912 do_temp(opCmpAndSwap->_addr);
913 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
914 do_temp(opCmpAndSwap->_cmp_value);
915 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
916 do_temp(opCmpAndSwap->_new_value);
917 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
918 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
919 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
920
921 break;
922 }
923
924
925 // LIR_OpAllocArray;
926 case lir_alloc_array: {
927 assert(op->as_OpAllocArray() != nullptr, "must be");
928 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
929
930 if (opAllocArray->_info) do_info(opAllocArray->_info);
931 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
932 do_temp(opAllocArray->_klass);
933 }
934 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
935 do_temp(opAllocArray->_len);
936 }
937 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
938 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
939 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
940 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
941 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
942 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
943 break;
944 }
945
946 // LIR_OpLoadKlass
947 case lir_load_klass:
948 {
949 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
950 assert(opLoadKlass != nullptr, "must be");
951
952 do_input(opLoadKlass->_obj);
953 do_output(opLoadKlass->_result);
954 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
955 break;
956 }
957
958
959 // LIR_OpProfileCall:
960 case lir_profile_call: {
961 assert(op->as_OpProfileCall() != nullptr, "must be");
962 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
963
964 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
965 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
966 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
967 break;
968 }
969
970 // LIR_OpProfileType:
971 case lir_profile_type: {
972 assert(op->as_OpProfileType() != nullptr, "must be");
973 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
974
975 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
976 do_input(opProfileType->_obj);
977 do_temp(opProfileType->_tmp);
978 break;
979 }
980
981 // LIR_OpProfileInlineType:
982 case lir_profile_inline_type: {
983 assert(op->as_OpProfileInlineType() != nullptr, "must be");
984 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
985
986 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
987 do_input(opProfileInlineType->_obj);
988 do_temp(opProfileInlineType->_tmp);
989 break;
990 }
991 default:
992 op->visit(this);
993 }
994 }
995
996 void LIR_Op::visit(LIR_OpVisitState* state) {
997 ShouldNotReachHere();
998 }
999
1000 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1001 if (stub != nullptr) {
1002 stub->visit(this);
1003 }
1004 }
1005
1006 XHandlers* LIR_OpVisitState::all_xhandler() {
1007 XHandlers* result = nullptr;
1008
1009 int i;
1010 for (i = 0; i < info_count(); i++) {
1011 if (info_at(i)->exception_handlers() != nullptr) {
1012 result = info_at(i)->exception_handlers();
1013 break;
1014 }
1015 }
1016
1017 #ifdef ASSERT
1018 for (i = 0; i < info_count(); i++) {
1019 assert(info_at(i)->exception_handlers() == nullptr ||
1020 info_at(i)->exception_handlers() == result,
1021 "only one xhandler list allowed per LIR-operation");
1022 }
1023 #endif
1024
1025 if (result != nullptr) {
1026 return result;
1027 } else {
1028 return new XHandlers();
1029 }
1030
1031 return result;
1032 }
1033
1034
1035 #ifdef ASSERT
1036 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1037 visit(op);
1038
1039 return opr_count(inputMode) == 0 &&
1040 opr_count(outputMode) == 0 &&
1041 opr_count(tempMode) == 0 &&
1042 info_count() == 0 &&
1043 !has_call() &&
1044 !has_slow_case();
1045 }
1046 #endif
1047
1048 // LIR_OpReturn
1049 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1050 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1051 _stub(nullptr) {
1052 if (VM_Version::supports_stack_watermark_barrier()) {
1053 _stub = new C1SafepointPollStub();
1054 }
1055 }
1056
1057 //---------------------------------------------------
1058
1059
1060 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1061 masm->emit_call(this);
1062 }
1063
1064 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1065 ciType* return_type = method()->return_type();
1066 if (InlineTypeReturnedAsFields) {
1067 if (return_type->is_inlinetype()) {
1068 ciInlineKlass* vk = return_type->as_inline_klass();
1069 if (vk->can_be_returned_as_fields()) {
1070 if (vk_ret != nullptr) {
1071 *vk_ret = vk;
1072 }
1073 return true;
1074 }
1075 } else if (return_type->is_instance_klass() &&
1076 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1077 StressCallingConvention)) {
1078 // An inline type might be returned from the call but we don't know its type.
1079 // This can happen with method handle intrinsics or when the return type is
1080 // not loaded (method holder is not loaded or preload attribute is missing).
1081 // If an inline type is returned, we either get an oop to a buffer and nothing
1082 // needs to be done or one of the values being returned is the klass of the
1083 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1084 // type instance of that type and initialize it with the fields values being
1085 // returned in other registers.
1086 return true;
1087 }
1088 }
1089 return false;
1090 }
1091
1092 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1093 masm->emit_rtcall(this);
1094 }
1095
1096 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1097 masm->emit_opLabel(this);
1098 }
1099
1100 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1101 masm->emit_arraycopy(this);
1102 ArrayCopyStub* code_stub = stub();
1103 if (code_stub != nullptr) {
1104 masm->append_code_stub(code_stub);
1105 }
1106 }
1107
1108 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1109 masm->emit_updatecrc32(this);
1110 }
1111
1112 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1113 masm->emit_op0(this);
1114 }
1115
1116 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1117 masm->emit_op1(this);
1118 }
1119
1120 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1121 masm->emit_alloc_obj(this);
1122 masm->append_code_stub(stub());
1123 }
1124
1125 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1126 masm->emit_opBranch(this);
1127 if (stub()) {
1128 masm->append_code_stub(stub());
1129 }
1130 }
1131
1132 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1133 masm->emit_opConvert(this);
1134 if (stub() != nullptr) {
1135 masm->append_code_stub(stub());
1136 }
1137 }
1138
1139 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1140 masm->emit_op2(this);
1141 }
1142
1143 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1144 masm->emit_alloc_array(this);
1145 masm->append_code_stub(stub());
1146 }
1147
1148 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1149 masm->emit_opTypeCheck(this);
1150 if (stub()) {
1151 masm->append_code_stub(stub());
1152 }
1153 }
1154
1155 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1156 masm->emit_opFlattenedArrayCheck(this);
1157 if (stub() != nullptr) {
1158 masm->append_code_stub(stub());
1159 }
1160 }
1161
1162 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1163 masm->emit_opNullFreeArrayCheck(this);
1164 }
1165
1166 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1167 masm->emit_opSubstitutabilityCheck(this);
1168 if (stub() != nullptr) {
1169 masm->append_code_stub(stub());
1170 }
1171 }
1172
1173 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1174 masm->emit_compare_and_swap(this);
1175 }
1176
1177 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1178 masm->emit_op3(this);
1179 }
1180
1181 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1182 masm->emit_op4(this);
1183 }
1184
1185 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1186 masm->emit_lock(this);
1187 if (stub()) {
1188 masm->append_code_stub(stub());
1189 }
1190 if (throw_ie_stub()) {
1191 masm->append_code_stub(throw_ie_stub());
1192 }
1193 }
1194
1195 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1196 masm->emit_load_klass(this);
1197 }
1198
1199 #ifdef ASSERT
1200 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1201 masm->emit_assert(this);
1202 }
1203 #endif
1204
1205 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1206 masm->emit_profile_call(this);
1207 }
1208
1209 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1210 masm->emit_profile_type(this);
1211 }
1212
1213 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1214 masm->emit_profile_inline_type(this);
1215 }
1216
1217 // LIR_List
1218 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1219 : _operations(8)
1220 , _compilation(compilation)
1221 #ifndef PRODUCT
1222 , _block(block)
1223 #endif
1224 #ifdef ASSERT
1225 , _file(nullptr)
1226 , _line(0)
1227 #endif
1228 #ifdef RISCV
1229 , _cmp_opr1(LIR_OprFact::illegalOpr)
1230 , _cmp_opr2(LIR_OprFact::illegalOpr)
1231 #endif
1232 { }
1233
1234
1235 #ifdef ASSERT
1236 void LIR_List::set_file_and_line(const char * file, int line) {
1237 const char * f = strrchr(file, '/');
1238 if (f == nullptr) f = strrchr(file, '\\');
1239 if (f == nullptr) {
1240 f = file;
1241 } else {
1242 f++;
1243 }
1244 _file = f;
1245 _line = line;
1246 }
1247 #endif
1248
1249 #ifdef RISCV
1250 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1251 switch (op->code()) {
1252 case lir_cmp:
1253 _cmp_opr1 = op->as_Op2()->in_opr1();
1254 _cmp_opr2 = op->as_Op2()->in_opr2();
1255 break;
1256 case lir_branch: // fall through
1257 case lir_cond_float_branch:
1258 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1259 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1260 "conditional branches must have legal operands");
1261 if (op->as_OpBranch()->cond() != lir_cond_always) {
1262 op->as_Op2()->set_in_opr1(_cmp_opr1);
1263 op->as_Op2()->set_in_opr2(_cmp_opr2);
1264 }
1265 break;
1266 case lir_cmove:
1267 op->as_Op4()->set_in_opr3(_cmp_opr1);
1268 op->as_Op4()->set_in_opr4(_cmp_opr2);
1269 break;
1270 case lir_cas_long:
1271 case lir_cas_obj:
1272 case lir_cas_int:
1273 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr();
1274 _cmp_opr2 = LIR_OprFact::intConst(0);
1275 break;
1276 #if INCLUDE_ZGC
1277 case lir_xloadbarrier_test:
1278 _cmp_opr1 = FrameMap::as_opr(t1);
1279 _cmp_opr2 = LIR_OprFact::intConst(0);
1280 break;
1281 #endif
1282 default:
1283 break;
1284 }
1285 }
1286 #endif
1287
1288 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1289 assert(this == buffer->lir_list(), "wrong lir list");
1290 const int n = _operations.length();
1291
1292 if (buffer->number_of_ops() > 0) {
1293 // increase size of instructions list
1294 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr);
1295 // insert ops from buffer into instructions list
1296 int op_index = buffer->number_of_ops() - 1;
1297 int ip_index = buffer->number_of_insertion_points() - 1;
1298 int from_index = n - 1;
1299 int to_index = _operations.length() - 1;
1300 for (; ip_index >= 0; ip_index --) {
1301 int index = buffer->index_at(ip_index);
1302 // make room after insertion point
1303 while (index < from_index) {
1304 _operations.at_put(to_index --, _operations.at(from_index --));
1305 }
1306 // insert ops from buffer
1307 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1308 _operations.at_put(to_index --, buffer->op_at(op_index --));
1309 }
1310 }
1311 }
1312
1313 buffer->finish();
1314 }
1315
1316
1317 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1318 assert(reg->type() == T_OBJECT, "bad reg");
1319 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1320 }
1321
1322 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1323 assert(reg->type() == T_METADATA, "bad reg");
1324 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1325 }
1326
1327 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1328 append(new LIR_Op1(
1329 lir_move,
1330 LIR_OprFact::address(addr),
1331 src,
1332 addr->type(),
1333 patch_code,
1334 info));
1335 }
1336
1337
1338 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1339 append(new LIR_Op1(
1340 lir_move,
1341 LIR_OprFact::address(address),
1342 dst,
1343 address->type(),
1344 patch_code,
1345 info, lir_move_volatile));
1346 }
1347
1348 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1349 append(new LIR_Op1(
1350 lir_move,
1351 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1352 dst,
1353 type,
1354 patch_code,
1355 info, lir_move_volatile));
1356 }
1357
1358
1359 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1360 append(new LIR_Op1(
1361 lir_move,
1362 LIR_OprFact::intConst(v),
1363 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1364 type,
1365 patch_code,
1366 info));
1367 }
1368
1369
1370 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1371 append(new LIR_Op1(
1372 lir_move,
1373 LIR_OprFact::oopConst(o),
1374 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1375 type,
1376 patch_code,
1377 info));
1378 }
1379
1380
1381 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1382 append(new LIR_Op1(
1383 lir_move,
1384 src,
1385 LIR_OprFact::address(addr),
1386 addr->type(),
1387 patch_code,
1388 info));
1389 }
1390
1391
1392 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1393 append(new LIR_Op1(
1394 lir_move,
1395 src,
1396 LIR_OprFact::address(addr),
1397 addr->type(),
1398 patch_code,
1399 info,
1400 lir_move_volatile));
1401 }
1402
1403 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1404 append(new LIR_Op1(
1405 lir_move,
1406 src,
1407 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1408 type,
1409 patch_code,
1410 info, lir_move_volatile));
1411 }
1412
1413
1414 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1415 append(new LIR_Op3(
1416 lir_idiv,
1417 left,
1418 right,
1419 tmp,
1420 res,
1421 info));
1422 }
1423
1424
1425 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1426 append(new LIR_Op3(
1427 lir_idiv,
1428 left,
1429 LIR_OprFact::intConst(right),
1430 tmp,
1431 res,
1432 info));
1433 }
1434
1435
1436 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1437 append(new LIR_Op3(
1438 lir_irem,
1439 left,
1440 right,
1441 tmp,
1442 res,
1443 info));
1444 }
1445
1446
1447 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1448 append(new LIR_Op3(
1449 lir_irem,
1450 left,
1451 LIR_OprFact::intConst(right),
1452 tmp,
1453 res,
1454 info));
1455 }
1456
1457
1458 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1459 append(new LIR_Op2(
1460 lir_cmp,
1461 condition,
1462 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1463 LIR_OprFact::intConst(c),
1464 info));
1465 }
1466
1467
1468 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1469 append(new LIR_Op2(
1470 lir_cmp,
1471 condition,
1472 reg,
1473 LIR_OprFact::address(addr),
1474 info));
1475 }
1476
1477 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1478 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1479 append(new LIR_OpAllocObj(
1480 klass,
1481 dst,
1482 t1,
1483 t2,
1484 t3,
1485 t4,
1486 header_size,
1487 object_size,
1488 init_check,
1489 stub));
1490 }
1491
1492 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) {
1493 append(new LIR_OpAllocArray(
1494 klass,
1495 len,
1496 dst,
1497 t1,
1498 t2,
1499 t3,
1500 t4,
1501 type,
1502 stub,
1503 zero_array,
1504 always_slow_path));
1505 }
1506
1507 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1508 append(new LIR_Op2(
1509 lir_shl,
1510 value,
1511 count,
1512 dst,
1513 tmp));
1514 }
1515
1516 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1517 append(new LIR_Op2(
1518 lir_shr,
1519 value,
1520 count,
1521 dst,
1522 tmp));
1523 }
1524
1525
1526 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1527 append(new LIR_Op2(
1528 lir_ushr,
1529 value,
1530 count,
1531 dst,
1532 tmp));
1533 }
1534
1535 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1536 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1537 left,
1538 right,
1539 dst));
1540 }
1541
1542 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) {
1543 append(new LIR_OpLock(
1544 lir_lock,
1545 hdr,
1546 obj,
1547 lock,
1548 scratch,
1549 stub,
1550 info,
1551 throw_ie_stub));
1552 }
1553
1554 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1555 append(new LIR_OpLock(
1556 lir_unlock,
1557 hdr,
1558 obj,
1559 lock,
1560 scratch,
1561 stub,
1562 nullptr));
1563 }
1564
1565
1566 void check_LIR() {
1567 // cannot do the proper checking as PRODUCT and other modes return different results
1568 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1569 }
1570
1571
1572
1573 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1574 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1575 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1576 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1577 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1578 // on the object.
1579 bool need_null_check = !is_null_free;
1580 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1581 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1582 need_null_check);
1583 if (profiled_method != nullptr && TypeProfileCasts) {
1584 c->set_profiled_method(profiled_method);
1585 c->set_profiled_bci(profiled_bci);
1586 c->set_should_profile(true);
1587 }
1588 append(c);
1589 }
1590
1591 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) {
1592 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1593 if (profiled_method != nullptr && TypeProfileCasts) {
1594 c->set_profiled_method(profiled_method);
1595 c->set_profiled_bci(profiled_bci);
1596 c->set_should_profile(true);
1597 }
1598 append(c);
1599 }
1600
1601
1602 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1603 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1604 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1605 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1606 if (profiled_method != nullptr && TypeProfileCasts) {
1607 c->set_profiled_method(profiled_method);
1608 c->set_profiled_bci(profiled_bci);
1609 c->set_should_profile(true);
1610 }
1611 append(c);
1612 }
1613
1614 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1615 if (deoptimize_on_null) {
1616 // Emit an explicit null check and deoptimize if opr is null
1617 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1618 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1619 branch(lir_cond_equal, deopt);
1620 } else {
1621 // Emit an implicit null check
1622 append(new LIR_Op1(lir_null_check, opr, info));
1623 }
1624 }
1625
1626 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1627 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1628 append(c);
1629 }
1630
1631 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1632 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1633 append(c);
1634 }
1635
1636 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1637 LIR_Opr tmp1, LIR_Opr tmp2,
1638 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1639 CodeEmitInfo* info, CodeStub* stub) {
1640 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1641 tmp1, tmp2,
1642 left_klass, right_klass, left_klass_op, right_klass_op,
1643 info, stub);
1644 append(c);
1645 }
1646
1647 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1648 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1649 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1650 }
1651
1652 void LIR_List::cas_obj(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_obj, addr, cmp_value, new_value, t1, t2, result));
1655 }
1656
1657 void LIR_List::cas_int(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_int, addr, cmp_value, new_value, t1, t2, result));
1660 }
1661
1662
1663 #ifdef PRODUCT
1664
1665 void print_LIR(BlockList* blocks) {
1666 }
1667
1668 #else
1669 // LIR_Opr
1670 void LIR_Opr::print() const {
1671 print(tty);
1672 }
1673
1674 void LIR_Opr::print(outputStream* out) const {
1675 if (is_illegal()) {
1676 return;
1677 }
1678
1679 out->print("[");
1680 if (is_pointer()) {
1681 pointer()->print_value_on(out);
1682 } else if (is_single_stack()) {
1683 out->print("stack:%d", single_stack_ix());
1684 } else if (is_double_stack()) {
1685 out->print("dbl_stack:%d",double_stack_ix());
1686 } else if (is_virtual()) {
1687 out->print("R%d", vreg_number());
1688 } else if (is_single_cpu()) {
1689 out->print("%s", as_register()->name());
1690 } else if (is_double_cpu()) {
1691 out->print("%s", as_register_hi()->name());
1692 out->print("%s", as_register_lo()->name());
1693 #if defined(X86)
1694 } else if (is_single_xmm()) {
1695 out->print("%s", as_xmm_float_reg()->name());
1696 } else if (is_double_xmm()) {
1697 out->print("%s", as_xmm_double_reg()->name());
1698 } else if (is_single_fpu()) {
1699 out->print("fpu%d", fpu_regnr());
1700 } else if (is_double_fpu()) {
1701 out->print("fpu%d", fpu_regnrLo());
1702 #elif defined(AARCH64)
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(ARM)
1708 } else if (is_single_fpu()) {
1709 out->print("s%d", fpu_regnr());
1710 } else if (is_double_fpu()) {
1711 out->print("d%d", fpu_regnrLo() >> 1);
1712 #else
1713 } else if (is_single_fpu()) {
1714 out->print("%s", as_float_reg()->name());
1715 } else if (is_double_fpu()) {
1716 out->print("%s", as_double_reg()->name());
1717 #endif
1718
1719 } else if (is_illegal()) {
1720 out->print("-");
1721 } else {
1722 out->print("Unknown Operand");
1723 }
1724 if (!is_illegal()) {
1725 out->print("|%c", type_char());
1726 }
1727 if (is_register() && is_last_use()) {
1728 out->print("(last_use)");
1729 }
1730 out->print("]");
1731 }
1732
1733
1734 // LIR_Address
1735 void LIR_Const::print_value_on(outputStream* out) const {
1736 switch (type()) {
1737 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1738 case T_INT: out->print("int:%d", as_jint()); break;
1739 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1740 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1741 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1742 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1743 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1744 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1745 }
1746 }
1747
1748 // LIR_Address
1749 void LIR_Address::print_value_on(outputStream* out) const {
1750 out->print("Base:"); _base->print(out);
1751 if (!_index->is_illegal()) {
1752 out->print(" Index:"); _index->print(out);
1753 switch (scale()) {
1754 case times_1: break;
1755 case times_2: out->print(" * 2"); break;
1756 case times_4: out->print(" * 4"); break;
1757 case times_8: out->print(" * 8"); break;
1758 }
1759 }
1760 out->print(" Disp: %zd", _disp);
1761 }
1762
1763 // debug output of block header without InstructionPrinter
1764 // (because phi functions are not necessary for LIR)
1765 static void print_block(BlockBegin* x) {
1766 // print block id
1767 BlockEnd* end = x->end();
1768 tty->print("B%d ", x->block_id());
1769
1770 // print flags
1771 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1772 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1773 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1774 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1775 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1776 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1777 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1778
1779 // print block bci range
1780 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci()));
1781
1782 // print predecessors and successors
1783 if (x->number_of_preds() > 0) {
1784 tty->print("preds: ");
1785 for (int i = 0; i < x->number_of_preds(); i ++) {
1786 tty->print("B%d ", x->pred_at(i)->block_id());
1787 }
1788 }
1789
1790 if (end != nullptr && x->number_of_sux() > 0) {
1791 tty->print("sux: ");
1792 for (int i = 0; i < x->number_of_sux(); i ++) {
1793 tty->print("B%d ", x->sux_at(i)->block_id());
1794 }
1795 }
1796
1797 // print exception handlers
1798 if (x->number_of_exception_handlers() > 0) {
1799 tty->print("xhandler: ");
1800 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1801 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1802 }
1803 }
1804
1805 tty->cr();
1806 }
1807
1808 void print_LIR(BlockList* blocks) {
1809 tty->print_cr("LIR:");
1810 int i;
1811 for (i = 0; i < blocks->length(); i++) {
1812 BlockBegin* bb = blocks->at(i);
1813 print_block(bb);
1814 tty->print("__id_Instruction___________________________________________"); tty->cr();
1815 bb->lir()->print_instructions();
1816 }
1817 }
1818
1819 void LIR_List::print_instructions() {
1820 for (int i = 0; i < _operations.length(); i++) {
1821 _operations.at(i)->print(); tty->cr();
1822 }
1823 tty->cr();
1824 }
1825
1826 // LIR_Ops printing routines
1827 // LIR_Op
1828 void LIR_Op::print_on(outputStream* out) const {
1829 if (id() != -1 || PrintCFGToFile) {
1830 out->print("%4d ", id());
1831 } else {
1832 out->print(" ");
1833 }
1834 out->print("%s ", name());
1835 print_instr(out);
1836 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci());
1837 #ifdef ASSERT
1838 if (Verbose && _file != nullptr) {
1839 out->print(" (%s:%d)", _file, _line);
1840 }
1841 #endif
1842 }
1843
1844 const char * LIR_Op::name() const {
1845 const char* s = nullptr;
1846 switch(code()) {
1847 // LIR_Op0
1848 case lir_membar: s = "membar"; break;
1849 case lir_membar_acquire: s = "membar_acquire"; break;
1850 case lir_membar_release: s = "membar_release"; break;
1851 case lir_membar_loadload: s = "membar_loadload"; break;
1852 case lir_membar_storestore: s = "membar_storestore"; break;
1853 case lir_membar_loadstore: s = "membar_loadstore"; break;
1854 case lir_membar_storeload: s = "membar_storeload"; break;
1855 case lir_label: s = "label"; break;
1856 case lir_nop: s = "nop"; break;
1857 case lir_on_spin_wait: s = "on_spin_wait"; break;
1858 case lir_std_entry: s = "std_entry"; break;
1859 case lir_osr_entry: s = "osr_entry"; break;
1860 case lir_breakpoint: s = "breakpoint"; break;
1861 case lir_get_thread: s = "get_thread"; break;
1862 case lir_check_orig_pc: s = "check_orig_pc"; break;
1863 // LIR_Op1
1864 case lir_push: s = "push"; break;
1865 case lir_pop: s = "pop"; break;
1866 case lir_null_check: s = "null_check"; break;
1867 case lir_return: s = "return"; break;
1868 case lir_safepoint: s = "safepoint"; break;
1869 case lir_leal: s = "leal"; break;
1870 case lir_branch: s = "branch"; break;
1871 case lir_cond_float_branch: s = "flt_cond_br"; break;
1872 case lir_move: s = "move"; break;
1873 case lir_abs: s = "abs"; break;
1874 case lir_neg: s = "neg"; break;
1875 case lir_sqrt: s = "sqrt"; break;
1876 case lir_f2hf: s = "f2hf"; break;
1877 case lir_hf2f: s = "hf2f"; break;
1878 case lir_rtcall: s = "rtcall"; break;
1879 case lir_throw: s = "throw"; break;
1880 case lir_unwind: s = "unwind"; break;
1881 case lir_convert: s = "convert"; break;
1882 case lir_alloc_object: s = "alloc_obj"; break;
1883 case lir_monaddr: s = "mon_addr"; break;
1884 // LIR_Op2
1885 case lir_cmp: s = "cmp"; break;
1886 case lir_cmp_l2i: s = "cmp_l2i"; break;
1887 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1888 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1889 case lir_add: s = "add"; break;
1890 case lir_sub: s = "sub"; break;
1891 case lir_mul: s = "mul"; break;
1892 case lir_div: s = "div"; break;
1893 case lir_rem: s = "rem"; break;
1894 case lir_logic_and: s = "logic_and"; break;
1895 case lir_logic_or: s = "logic_or"; break;
1896 case lir_logic_xor: s = "logic_xor"; break;
1897 case lir_shl: s = "shift_left"; break;
1898 case lir_shr: s = "shift_right"; break;
1899 case lir_ushr: s = "ushift_right"; break;
1900 case lir_alloc_array: s = "alloc_array"; break;
1901 case lir_xadd: s = "xadd"; break;
1902 case lir_xchg: s = "xchg"; break;
1903 // LIR_Op3
1904 case lir_idiv: s = "idiv"; break;
1905 case lir_irem: s = "irem"; break;
1906 case lir_fmad: s = "fmad"; break;
1907 case lir_fmaf: s = "fmaf"; break;
1908 // LIR_Op4
1909 case lir_cmove: s = "cmove"; break;
1910 // LIR_OpJavaCall
1911 case lir_static_call: s = "static"; break;
1912 case lir_optvirtual_call: s = "optvirtual"; break;
1913 case lir_icvirtual_call: s = "icvirtual"; break;
1914 case lir_dynamic_call: s = "dynamic"; break;
1915 // LIR_OpArrayCopy
1916 case lir_arraycopy: s = "arraycopy"; break;
1917 // LIR_OpUpdateCRC32
1918 case lir_updatecrc32: s = "updatecrc32"; break;
1919 // LIR_OpLock
1920 case lir_lock: s = "lock"; break;
1921 case lir_unlock: s = "unlock"; break;
1922 // LIR_OpTypeCheck
1923 case lir_instanceof: s = "instanceof"; break;
1924 case lir_checkcast: s = "checkcast"; break;
1925 case lir_store_check: s = "store_check"; break;
1926 // LIR_OpFlattenedArrayCheck
1927 case lir_flat_array_check: s = "flat_array_check"; break;
1928 // LIR_OpNullFreeArrayCheck
1929 case lir_null_free_array_check: s = "null_free_array_check"; break;
1930 // LIR_OpSubstitutabilityCheck
1931 case lir_substitutability_check: s = "substitutability_check"; break;
1932 // LIR_OpCompareAndSwap
1933 case lir_cas_long: s = "cas_long"; break;
1934 case lir_cas_obj: s = "cas_obj"; break;
1935 case lir_cas_int: s = "cas_int"; break;
1936 // LIR_OpProfileCall
1937 case lir_profile_call: s = "profile_call"; break;
1938 // LIR_OpProfileType
1939 case lir_profile_type: s = "profile_type"; break;
1940 // LIR_OpProfileInlineType
1941 case lir_profile_inline_type: s = "profile_inline_type"; break;
1942 // LIR_OpAssert
1943 #ifdef ASSERT
1944 case lir_assert: s = "assert"; break;
1945 #endif
1946 case lir_none: ShouldNotReachHere();break;
1947 default: s = "illegal_op"; break;
1948 }
1949 return s;
1950 }
1951
1952 // LIR_OpJavaCall
1953 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1954 out->print("call: ");
1955 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1956 if (receiver()->is_valid()) {
1957 out->print(" [recv: "); receiver()->print(out); out->print("]");
1958 }
1959 if (result_opr()->is_valid()) {
1960 out->print(" [result: "); result_opr()->print(out); out->print("]");
1961 }
1962 }
1963
1964 // LIR_OpLabel
1965 void LIR_OpLabel::print_instr(outputStream* out) const {
1966 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1967 }
1968
1969 // LIR_OpArrayCopy
1970 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1971 src()->print(out); out->print(" ");
1972 src_pos()->print(out); out->print(" ");
1973 dst()->print(out); out->print(" ");
1974 dst_pos()->print(out); out->print(" ");
1975 length()->print(out); out->print(" ");
1976 tmp()->print(out); out->print(" ");
1977 }
1978
1979 // LIR_OpUpdateCRC32
1980 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1981 crc()->print(out); out->print(" ");
1982 val()->print(out); out->print(" ");
1983 result_opr()->print(out); out->print(" ");
1984 }
1985
1986 // LIR_OpCompareAndSwap
1987 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1988 addr()->print(out); out->print(" ");
1989 cmp_value()->print(out); out->print(" ");
1990 new_value()->print(out); out->print(" ");
1991 tmp1()->print(out); out->print(" ");
1992 tmp2()->print(out); out->print(" ");
1993
1994 }
1995
1996 // LIR_Op0
1997 void LIR_Op0::print_instr(outputStream* out) const {
1998 result_opr()->print(out);
1999 }
2000
2001 // LIR_Op1
2002 const char * LIR_Op1::name() const {
2003 if (code() == lir_move) {
2004 switch (move_kind()) {
2005 case lir_move_normal:
2006 return "move";
2007 case lir_move_volatile:
2008 return "volatile_move";
2009 case lir_move_wide:
2010 return "wide_move";
2011 default:
2012 ShouldNotReachHere();
2013 return "illegal_op";
2014 }
2015 } else {
2016 return LIR_Op::name();
2017 }
2018 }
2019
2020
2021 void LIR_Op1::print_instr(outputStream* out) const {
2022 _opr->print(out); out->print(" ");
2023 result_opr()->print(out); out->print(" ");
2024 print_patch_code(out, patch_code());
2025 }
2026
2027
2028 // LIR_Op1
2029 void LIR_OpRTCall::print_instr(outputStream* out) const {
2030 intx a = (intx)addr();
2031 out->print("%s", Runtime1::name_for_address(addr()));
2032 out->print(" ");
2033 tmp()->print(out);
2034 }
2035
2036 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2037 switch(code) {
2038 case lir_patch_none: break;
2039 case lir_patch_low: out->print("[patch_low]"); break;
2040 case lir_patch_high: out->print("[patch_high]"); break;
2041 case lir_patch_normal: out->print("[patch_normal]"); break;
2042 default: ShouldNotReachHere();
2043 }
2044 }
2045
2046 // LIR_OpBranch
2047 void LIR_OpBranch::print_instr(outputStream* out) const {
2048 print_condition(out, cond()); out->print(" ");
2049 in_opr1()->print(out); out->print(" ");
2050 in_opr2()->print(out); out->print(" ");
2051 if (block() != nullptr) {
2052 out->print("[B%d] ", block()->block_id());
2053 } else if (stub() != nullptr) {
2054 out->print("[");
2055 stub()->print_name(out);
2056 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2057 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2058 } else {
2059 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2060 }
2061 if (ublock() != nullptr) {
2062 out->print("unordered: [B%d] ", ublock()->block_id());
2063 }
2064 }
2065
2066 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2067 switch(cond) {
2068 case lir_cond_equal: out->print("[EQ]"); break;
2069 case lir_cond_notEqual: out->print("[NE]"); break;
2070 case lir_cond_less: out->print("[LT]"); break;
2071 case lir_cond_lessEqual: out->print("[LE]"); break;
2072 case lir_cond_greaterEqual: out->print("[GE]"); break;
2073 case lir_cond_greater: out->print("[GT]"); break;
2074 case lir_cond_belowEqual: out->print("[BE]"); break;
2075 case lir_cond_aboveEqual: out->print("[AE]"); break;
2076 case lir_cond_always: out->print("[AL]"); break;
2077 default: out->print("[%d]",cond); break;
2078 }
2079 }
2080
2081 // LIR_OpConvert
2082 void LIR_OpConvert::print_instr(outputStream* out) const {
2083 print_bytecode(out, bytecode());
2084 in_opr()->print(out); out->print(" ");
2085 result_opr()->print(out); out->print(" ");
2086 }
2087
2088 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2089 switch(code) {
2090 case Bytecodes::_d2f: out->print("[d2f] "); break;
2091 case Bytecodes::_d2i: out->print("[d2i] "); break;
2092 case Bytecodes::_d2l: out->print("[d2l] "); break;
2093 case Bytecodes::_f2d: out->print("[f2d] "); break;
2094 case Bytecodes::_f2i: out->print("[f2i] "); break;
2095 case Bytecodes::_f2l: out->print("[f2l] "); break;
2096 case Bytecodes::_i2b: out->print("[i2b] "); break;
2097 case Bytecodes::_i2c: out->print("[i2c] "); break;
2098 case Bytecodes::_i2d: out->print("[i2d] "); break;
2099 case Bytecodes::_i2f: out->print("[i2f] "); break;
2100 case Bytecodes::_i2l: out->print("[i2l] "); break;
2101 case Bytecodes::_i2s: out->print("[i2s] "); break;
2102 case Bytecodes::_l2i: out->print("[l2i] "); break;
2103 case Bytecodes::_l2f: out->print("[l2f] "); break;
2104 case Bytecodes::_l2d: out->print("[l2d] "); break;
2105 default:
2106 out->print("[?%d]",code);
2107 break;
2108 }
2109 }
2110
2111 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2112 klass()->print(out); out->print(" ");
2113 obj()->print(out); out->print(" ");
2114 tmp1()->print(out); out->print(" ");
2115 tmp2()->print(out); out->print(" ");
2116 tmp3()->print(out); out->print(" ");
2117 tmp4()->print(out); out->print(" ");
2118 out->print("[hdr:%d]", header_size()); out->print(" ");
2119 out->print("[obj:%d]", object_size()); out->print(" ");
2120 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2121 }
2122
2123 // LIR_Op2
2124 void LIR_Op2::print_instr(outputStream* out) const {
2125 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2126 print_condition(out, condition()); out->print(" ");
2127 }
2128 in_opr1()->print(out); out->print(" ");
2129 in_opr2()->print(out); out->print(" ");
2130 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2131 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2132 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2133 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2134 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2135 result_opr()->print(out);
2136 }
2137
2138 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2139 klass()->print(out); out->print(" ");
2140 len()->print(out); out->print(" ");
2141 obj()->print(out); out->print(" ");
2142 tmp1()->print(out); out->print(" ");
2143 tmp2()->print(out); out->print(" ");
2144 tmp3()->print(out); out->print(" ");
2145 tmp4()->print(out); out->print(" ");
2146 out->print("[type:0x%x]", type()); out->print(" ");
2147 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2148 }
2149
2150
2151 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2152 object()->print(out); out->print(" ");
2153 if (code() == lir_store_check) {
2154 array()->print(out); out->print(" ");
2155 }
2156 if (code() != lir_store_check) {
2157 klass()->print_name_on(out); out->print(" ");
2158 if (fast_check()) out->print("fast_check ");
2159 }
2160 tmp1()->print(out); out->print(" ");
2161 tmp2()->print(out); out->print(" ");
2162 tmp3()->print(out); out->print(" ");
2163 result_opr()->print(out); out->print(" ");
2164 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2165 }
2166
2167 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2168 array()->print(out); out->print(" ");
2169 value()->print(out); out->print(" ");
2170 tmp()->print(out); out->print(" ");
2171 if (stub() != nullptr) {
2172 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2173 }
2174 }
2175
2176 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2177 array()->print(out); out->print(" ");
2178 tmp()->print(out); out->print(" ");
2179 }
2180
2181 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2182 result_opr()->print(out); out->print(" ");
2183 left()->print(out); out->print(" ");
2184 right()->print(out); out->print(" ");
2185 equal_result()->print(out); out->print(" ");
2186 not_equal_result()->print(out); out->print(" ");
2187 tmp1()->print(out); out->print(" ");
2188 tmp2()->print(out); out->print(" ");
2189 if (left_klass() == nullptr) {
2190 out->print("unknown ");
2191 } else {
2192 left_klass()->print(out); out->print(" ");
2193 }
2194 if (right_klass() == nullptr) {
2195 out->print("unknown ");
2196 } else {
2197 right_klass()->print(out); out->print(" ");
2198 }
2199 left_klass_op()->print(out); out->print(" ");
2200 right_klass_op()->print(out); out->print(" ");
2201 if (stub() != nullptr) {
2202 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2203 }
2204 }
2205
2206 // LIR_Op3
2207 void LIR_Op3::print_instr(outputStream* out) const {
2208 in_opr1()->print(out); out->print(" ");
2209 in_opr2()->print(out); out->print(" ");
2210 in_opr3()->print(out); out->print(" ");
2211 result_opr()->print(out);
2212 }
2213
2214 // LIR_Op4
2215 void LIR_Op4::print_instr(outputStream* out) const {
2216 print_condition(out, condition()); out->print(" ");
2217 in_opr1()->print(out); out->print(" ");
2218 in_opr2()->print(out); out->print(" ");
2219 in_opr3()->print(out); out->print(" ");
2220 in_opr4()->print(out); out->print(" ");
2221 result_opr()->print(out);
2222 }
2223
2224 void LIR_OpLock::print_instr(outputStream* out) const {
2225 hdr_opr()->print(out); out->print(" ");
2226 obj_opr()->print(out); out->print(" ");
2227 lock_opr()->print(out); out->print(" ");
2228 if (_scratch->is_valid()) {
2229 _scratch->print(out); out->print(" ");
2230 }
2231 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2232 }
2233
2234 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2235 obj()->print(out); out->print(" ");
2236 result_opr()->print(out); out->print(" ");
2237 }
2238
2239 #ifdef ASSERT
2240 void LIR_OpAssert::print_instr(outputStream* out) const {
2241 print_condition(out, condition()); out->print(" ");
2242 in_opr1()->print(out); out->print(" ");
2243 in_opr2()->print(out); out->print(", \"");
2244 out->print("%s", msg()); out->print("\"");
2245 }
2246 #endif
2247
2248
2249 // LIR_OpProfileCall
2250 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2251 profiled_method()->name()->print_symbol_on(out);
2252 out->print(".");
2253 profiled_method()->holder()->name()->print_symbol_on(out);
2254 out->print(" @ %d ", profiled_bci());
2255 mdo()->print(out); out->print(" ");
2256 recv()->print(out); out->print(" ");
2257 tmp1()->print(out); out->print(" ");
2258 }
2259
2260 // LIR_OpProfileType
2261 void LIR_OpProfileType::print_instr(outputStream* out) const {
2262 out->print("exact = ");
2263 if (exact_klass() == nullptr) {
2264 out->print("unknown");
2265 } else {
2266 exact_klass()->print_name_on(out);
2267 }
2268 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2269 out->print(" ");
2270 mdp()->print(out); out->print(" ");
2271 obj()->print(out); out->print(" ");
2272 tmp()->print(out); out->print(" ");
2273 }
2274
2275 // LIR_OpProfileInlineType
2276 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2277 out->print(" flag = %x ", flag());
2278 mdp()->print(out); out->print(" ");
2279 obj()->print(out); out->print(" ");
2280 tmp()->print(out); out->print(" ");
2281 }
2282
2283 #endif // PRODUCT
2284
2285 // Implementation of LIR_InsertionBuffer
2286
2287 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2288 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2289
2290 int i = number_of_insertion_points() - 1;
2291 if (i < 0 || index_at(i) < index) {
2292 append_new(index, 1);
2293 } else {
2294 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2295 assert(count_at(i) > 0, "check");
2296 set_count_at(i, count_at(i) + 1);
2297 }
2298 _ops.push(op);
2299
2300 DEBUG_ONLY(verify());
2301 }
2302
2303 #ifdef ASSERT
2304 void LIR_InsertionBuffer::verify() {
2305 int sum = 0;
2306 int prev_idx = -1;
2307
2308 for (int i = 0; i < number_of_insertion_points(); i++) {
2309 assert(prev_idx < index_at(i), "index must be ordered ascending");
2310 sum += count_at(i);
2311 }
2312 assert(sum == number_of_ops(), "wrong total sum");
2313 }
2314 #endif