1 /*
2 * Copyright (c) 2000, 2023, 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 "precompiled.hpp"
26 #include "c1/c1_CodeStubs.hpp"
27 #include "c1/c1_InstructionPrinter.hpp"
28 #include "c1/c1_LIR.hpp"
29 #include "c1/c1_LIRAssembler.hpp"
30 #include "c1/c1_ValueStack.hpp"
31 #include "ci/ciInlineKlass.hpp"
32 #include "ci/ciInstance.hpp"
33 #include "runtime/safepointMechanism.inline.hpp"
34 #include "runtime/sharedRuntime.hpp"
35 #include "runtime/vm_version.hpp"
36
37 Register LIR_Opr::as_register() const {
38 return FrameMap::cpu_rnr2reg(cpu_regnr());
39 }
40
41 Register LIR_Opr::as_register_lo() const {
42 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
43 }
44
45 Register LIR_Opr::as_register_hi() const {
46 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
47 }
48
49 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
50 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr();
51
52 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
53 ValueTag tag = type->tag();
54 switch (tag) {
55 case metaDataTag : {
56 ClassConstant* c = type->as_ClassConstant();
57 if (c != nullptr && !c->value()->is_loaded()) {
58 return LIR_OprFact::metadataConst(nullptr);
59 } else if (c != nullptr) {
60 return LIR_OprFact::metadataConst(c->value()->constant_encoding());
61 } else {
62 MethodConstant* m = type->as_MethodConstant();
63 assert (m != nullptr, "not a class or a method?");
64 return LIR_OprFact::metadataConst(m->value()->constant_encoding());
65 }
66 }
67 case objectTag : {
68 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
69 }
70 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
71 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value());
72 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
73 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value());
74 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
75 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
76 }
77 }
78
79
80 //---------------------------------------------------
81
82
83 LIR_Address::Scale LIR_Address::scale(BasicType type) {
84 int elem_size = type2aelembytes(type);
85 switch (elem_size) {
86 case 1: return LIR_Address::times_1;
87 case 2: return LIR_Address::times_2;
88 case 4: return LIR_Address::times_4;
89 case 8: return LIR_Address::times_8;
90 }
91 ShouldNotReachHere();
92 return LIR_Address::times_1;
93 }
94
95 //---------------------------------------------------
96
97 char LIR_Opr::type_char(BasicType t) {
98 switch (t) {
99 case T_ARRAY:
100 t = T_OBJECT;
101 case T_BOOLEAN:
102 case T_CHAR:
103 case T_FLOAT:
104 case T_DOUBLE:
105 case T_BYTE:
106 case T_SHORT:
107 case T_INT:
108 case T_LONG:
109 case T_OBJECT:
110 case T_ADDRESS:
111 case T_VOID:
112 return ::type2char(t);
113 case T_METADATA:
114 return 'M';
115 case T_ILLEGAL:
116 return '?';
117
118 default:
119 ShouldNotReachHere();
120 return '?';
121 }
122 }
123
124 #ifndef PRODUCT
125 void LIR_Opr::validate_type() const {
126
127 #ifdef ASSERT
128 if (!is_pointer() && !is_illegal()) {
129 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
130 switch (as_BasicType(type_field())) {
131 case T_LONG:
132 assert((kindfield == cpu_register || kindfield == stack_value) &&
133 size_field() == double_size, "must match");
134 break;
135 case T_FLOAT:
136 // FP return values can be also in CPU registers on ARM (softfp ABI)
137 assert((kindfield == fpu_register || kindfield == stack_value
138 ARM_ONLY(|| kindfield == cpu_register) ) &&
139 size_field() == single_size, "must match");
140 break;
141 case T_DOUBLE:
142 // FP return values can be also in CPU registers on ARM (softfp ABI)
143 assert((kindfield == fpu_register || kindfield == stack_value
144 ARM_ONLY(|| kindfield == cpu_register) ) &&
145 size_field() == double_size, "must match");
146 break;
147 case T_BOOLEAN:
148 case T_CHAR:
149 case T_BYTE:
150 case T_SHORT:
151 case T_INT:
152 case T_ADDRESS:
153 case T_OBJECT:
154 case T_METADATA:
155 case T_ARRAY:
156 assert((kindfield == cpu_register || kindfield == stack_value) &&
157 size_field() == single_size, "must match");
158 break;
159
160 case T_ILLEGAL:
161 // XXX TKR also means unknown right now
162 // assert(is_illegal(), "must match");
163 break;
164
165 default:
166 ShouldNotReachHere();
167 }
168 }
169 #endif
170
171 }
172 #endif // PRODUCT
173
174
175 bool LIR_Opr::is_oop() const {
176 if (is_pointer()) {
177 return pointer()->is_oop_pointer();
178 } else {
179 OprType t= type_field();
180 assert(t != unknown_type, "not set");
181 return t == object_type;
182 }
183 }
184
185
186
187 void LIR_Op2::verify() const {
188 #ifdef ASSERT
189 switch (code()) {
190 case lir_xchg:
191 break;
192
193 default:
194 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
195 "can't produce oops from arith");
196 }
197
198 if (two_operand_lir_form) {
199
200 bool threeOperandForm = false;
201 #ifdef S390
202 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
203 threeOperandForm =
204 code() == lir_shl ||
205 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
206 #endif
207
208 switch (code()) {
209 case lir_add:
210 case lir_sub:
211 case lir_mul:
212 case lir_div:
213 case lir_rem:
214 case lir_logic_and:
215 case lir_logic_or:
216 case lir_logic_xor:
217 case lir_shl:
218 case lir_shr:
219 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
220 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
221 break;
222
223 // special handling for lir_ushr because of write barriers
224 case lir_ushr:
225 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
226 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
227 break;
228
229 default:
230 break;
231 }
232 }
233 #endif
234 }
235
236
237 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block)
238 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
239 , _label(block->label())
240 , _block(block)
241 , _ublock(nullptr)
242 , _stub(nullptr) {
243 }
244
245 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) :
246 LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
247 , _label(stub->entry())
248 , _block(nullptr)
249 , _ublock(nullptr)
250 , _stub(stub) {
251 }
252
253 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock)
254 : LIR_Op2(lir_cond_float_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)nullptr)
255 , _label(block->label())
256 , _block(block)
257 , _ublock(ublock)
258 , _stub(nullptr)
259 {
260 }
261
262 void LIR_OpBranch::change_block(BlockBegin* b) {
263 assert(_block != nullptr, "must have old block");
264 assert(_block->label() == label(), "must be equal");
265
266 _block = b;
267 _label = b->label();
268 }
269
270 void LIR_OpBranch::change_ublock(BlockBegin* b) {
271 assert(_ublock != nullptr, "must have old block");
272 _ublock = b;
273 }
274
275 void LIR_OpBranch::negate_cond() {
276 switch (cond()) {
277 case lir_cond_equal: set_cond(lir_cond_notEqual); break;
278 case lir_cond_notEqual: set_cond(lir_cond_equal); break;
279 case lir_cond_less: set_cond(lir_cond_greaterEqual); break;
280 case lir_cond_lessEqual: set_cond(lir_cond_greater); break;
281 case lir_cond_greaterEqual: set_cond(lir_cond_less); break;
282 case lir_cond_greater: set_cond(lir_cond_lessEqual); break;
283 default: ShouldNotReachHere();
284 }
285 }
286
287
288 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
289 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
290 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
291 CodeStub* stub, bool need_null_check)
292
293 : LIR_Op(code, result, nullptr)
294 , _object(object)
295 , _array(LIR_OprFact::illegalOpr)
296 , _klass(klass)
297 , _tmp1(tmp1)
298 , _tmp2(tmp2)
299 , _tmp3(tmp3)
300 , _info_for_patch(info_for_patch)
301 , _info_for_exception(info_for_exception)
302 , _stub(stub)
303 , _profiled_method(nullptr)
304 , _profiled_bci(-1)
305 , _should_profile(false)
306 , _fast_check(fast_check)
307 , _need_null_check(need_null_check)
308 {
309 if (code == lir_checkcast) {
310 assert(info_for_exception != nullptr, "checkcast throws exceptions");
311 } else if (code == lir_instanceof) {
312 assert(info_for_exception == nullptr, "instanceof throws no exceptions");
313 } else {
314 ShouldNotReachHere();
315 }
316 }
317
318
319
320 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)
321 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr)
322 , _object(object)
323 , _array(array)
324 , _klass(nullptr)
325 , _tmp1(tmp1)
326 , _tmp2(tmp2)
327 , _tmp3(tmp3)
328 , _info_for_patch(nullptr)
329 , _info_for_exception(info_for_exception)
330 , _stub(nullptr)
331 , _profiled_method(nullptr)
332 , _profiled_bci(-1)
333 , _should_profile(false)
334 , _fast_check(false)
335 , _need_null_check(true)
336 {
337 if (code == lir_store_check) {
338 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
339 assert(info_for_exception != nullptr, "store_check throws exceptions");
340 } else {
341 ShouldNotReachHere();
342 }
343 }
344
345 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
346 : LIR_Op(lir_flat_array_check, LIR_OprFact::illegalOpr, nullptr)
347 , _array(array)
348 , _value(value)
349 , _tmp(tmp)
350 , _stub(stub) {}
351
352
353 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
354 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, nullptr)
355 , _array(array)
356 , _tmp(tmp) {}
357
358
359 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
360 LIR_Opr tmp1, LIR_Opr tmp2,
361 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
362 CodeEmitInfo* info, CodeStub* stub)
363 : LIR_Op(lir_substitutability_check, result, info)
364 , _left(left)
365 , _right(right)
366 , _equal_result(equal_result)
367 , _not_equal_result(not_equal_result)
368 , _tmp1(tmp1)
369 , _tmp2(tmp2)
370 , _left_klass(left_klass)
371 , _right_klass(right_klass)
372 , _left_klass_op(left_klass_op)
373 , _right_klass_op(right_klass_op)
374 , _stub(stub) {}
375
376
377 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
378 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
379 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
380 , _src(src)
381 , _src_pos(src_pos)
382 , _dst(dst)
383 , _dst_pos(dst_pos)
384 , _length(length)
385 , _tmp(tmp)
386 , _expected_type(expected_type)
387 , _flags(flags) {
388 #if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV) || defined(PPC64)
389 if (expected_type != nullptr && 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_fpop_raw: // result and info always invalid
442 case lir_breakpoint: // result and info always invalid
443 case lir_membar: // result and info always invalid
444 case lir_membar_acquire: // result and info always invalid
445 case lir_membar_release: // result and info always invalid
446 case lir_membar_loadload: // result and info always invalid
447 case lir_membar_storestore: // result and info always invalid
448 case lir_membar_loadstore: // result and info always invalid
449 case lir_membar_storeload: // result and info always invalid
450 case lir_check_orig_pc: // result and info always invalid
451 case lir_on_spin_wait:
452 {
453 assert(op->as_Op0() != nullptr, "must be");
454 assert(op->_info == nullptr, "info not used by this instruction");
455 assert(op->_result->is_illegal(), "not used");
456 break;
457 }
458
459 case lir_nop: // may have info, result always invalid
460 case lir_std_entry: // may have result, info always invalid
461 case lir_osr_entry: // may have result, info always invalid
462 case lir_get_thread: // may have result, info always invalid
463 {
464 assert(op->as_Op0() != nullptr, "must be");
465 if (op->_info != nullptr) do_info(op->_info);
466 if (op->_result->is_valid()) do_output(op->_result);
467 break;
468 }
469
470
471 // LIR_OpLabel
472 case lir_label: // result and info always invalid
473 {
474 assert(op->as_OpLabel() != nullptr, "must be");
475 assert(op->_info == nullptr, "info not used by this instruction");
476 assert(op->_result->is_illegal(), "not used");
477 break;
478 }
479
480
481 // LIR_Op1
482 case lir_fxch: // input always valid, result and info always invalid
483 case lir_fld: // input always valid, result and info always invalid
484 case lir_push: // input always valid, result and info always invalid
485 case lir_pop: // input always valid, result and info always invalid
486 case lir_leal: // input and result always valid, info always invalid
487 case lir_monaddr: // input and result always valid, info always invalid
488 case lir_null_check: // input and info always valid, result always invalid
489 case lir_move: // input and result always valid, may have info
490 {
491 assert(op->as_Op1() != nullptr, "must be");
492 LIR_Op1* op1 = (LIR_Op1*)op;
493
494 if (op1->_info) do_info(op1->_info);
495 if (op1->_opr->is_valid()) do_input(op1->_opr);
496 if (op1->_result->is_valid()) do_output(op1->_result);
497
498 break;
499 }
500
501 case lir_return:
502 {
503 assert(op->as_OpReturn() != nullptr, "must be");
504 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
505
506 if (op_ret->_info) do_info(op_ret->_info);
507 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
508 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
509 if (op_ret->stub() != nullptr) do_stub(op_ret->stub());
510
511 break;
512 }
513
514 case lir_safepoint:
515 {
516 assert(op->as_Op1() != nullptr, "must be");
517 LIR_Op1* op1 = (LIR_Op1*)op;
518
519 assert(op1->_info != nullptr, ""); do_info(op1->_info);
520 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
521 assert(op1->_result->is_illegal(), "safepoint does not produce value");
522
523 break;
524 }
525
526 // LIR_OpConvert;
527 case lir_convert: // input and result always valid, info always invalid
528 {
529 assert(op->as_OpConvert() != nullptr, "must be");
530 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
531
532 assert(opConvert->_info == nullptr, "must be");
533 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
534 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
535 do_stub(opConvert->_stub);
536
537 break;
538 }
539
540 // LIR_OpBranch;
541 case lir_branch: // may have info, input and result register always invalid
542 case lir_cond_float_branch: // may have info, input and result register always invalid
543 {
544 assert(op->as_OpBranch() != nullptr, "must be");
545 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
546
547 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() &&
548 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() &&
549 opBranch->_tmp5->is_illegal(), "not used");
550
551 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1);
552 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2);
553
554 if (opBranch->_info != nullptr) do_info(opBranch->_info);
555 assert(opBranch->_result->is_illegal(), "not used");
556 if (opBranch->_stub != nullptr) opBranch->stub()->visit(this);
557
558 break;
559 }
560
561
562 // LIR_OpAllocObj
563 case lir_alloc_object:
564 {
565 assert(op->as_OpAllocObj() != nullptr, "must be");
566 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
567
568 if (opAllocObj->_info) do_info(opAllocObj->_info);
569 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
570 do_temp(opAllocObj->_opr);
571 }
572 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
573 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
574 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
575 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
576 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
577 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub);
578 break;
579 }
580
581
582 // LIR_OpRoundFP;
583 case lir_roundfp: {
584 assert(op->as_OpRoundFP() != nullptr, "must be");
585 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
586
587 assert(op->_info == nullptr, "info not used by this instruction");
588 assert(opRoundFP->_tmp->is_illegal(), "not used");
589 do_input(opRoundFP->_opr);
590 do_output(opRoundFP->_result);
591
592 break;
593 }
594
595
596 // LIR_Op2
597 case lir_cmp:
598 case lir_cmp_l2i:
599 case lir_ucmp_fd2i:
600 case lir_cmp_fd2i:
601 case lir_add:
602 case lir_sub:
603 case lir_rem:
604 case lir_sqrt:
605 case lir_abs:
606 case lir_neg:
607 case lir_f2hf:
608 case lir_hf2f:
609 case lir_logic_and:
610 case lir_logic_or:
611 case lir_logic_xor:
612 case lir_shl:
613 case lir_shr:
614 case lir_ushr:
615 case lir_xadd:
616 case lir_xchg:
617 case lir_assert:
618 {
619 assert(op->as_Op2() != nullptr, "must be");
620 LIR_Op2* op2 = (LIR_Op2*)op;
621 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
622 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
623
624 if (op2->_info) do_info(op2->_info);
625 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
626 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
627 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
628 if (op2->_result->is_valid()) do_output(op2->_result);
629 if (op->code() == lir_xchg || op->code() == lir_xadd) {
630 // on ARM and PPC, return value is loaded first so could
631 // destroy inputs. On other platforms that implement those
632 // (x86, sparc), the extra constrainsts are harmless.
633 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
634 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
635 }
636
637 break;
638 }
639
640 // special handling for cmove: right input operand must not be equal
641 // to the result operand, otherwise the backend fails
642 case lir_cmove:
643 {
644 assert(op->as_Op4() != nullptr, "must be");
645 LIR_Op4* op4 = (LIR_Op4*)op;
646
647 assert(op4->_info == nullptr && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() &&
648 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used");
649 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used");
650
651 do_input(op4->_opr1);
652 do_input(op4->_opr2);
653 if (op4->_opr3->is_valid()) do_input(op4->_opr3);
654 if (op4->_opr4->is_valid()) do_input(op4->_opr4);
655 do_temp(op4->_opr2);
656 do_output(op4->_result);
657
658 break;
659 }
660
661 // vspecial handling for strict operations: register input operands
662 // as temp to guarantee that they do not overlap with other
663 // registers
664 case lir_mul:
665 case lir_div:
666 {
667 assert(op->as_Op2() != nullptr, "must be");
668 LIR_Op2* op2 = (LIR_Op2*)op;
669
670 assert(op2->_info == nullptr, "not used");
671 assert(op2->_opr1->is_valid(), "used");
672 assert(op2->_opr2->is_valid(), "used");
673 assert(op2->_result->is_valid(), "used");
674 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
675 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
676
677 do_input(op2->_opr1); do_temp(op2->_opr1);
678 do_input(op2->_opr2); do_temp(op2->_opr2);
679 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
680 do_output(op2->_result);
681
682 break;
683 }
684
685 case lir_throw: {
686 assert(op->as_Op2() != nullptr, "must be");
687 LIR_Op2* op2 = (LIR_Op2*)op;
688
689 if (op2->_info) do_info(op2->_info);
690 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
691 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
692 assert(op2->_result->is_illegal(), "no result");
693 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
694 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
695
696 break;
697 }
698
699 case lir_unwind: {
700 assert(op->as_Op1() != nullptr, "must be");
701 LIR_Op1* op1 = (LIR_Op1*)op;
702
703 assert(op1->_info == nullptr, "no info");
704 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
705 assert(op1->_result->is_illegal(), "no result");
706
707 break;
708 }
709
710 // LIR_Op3
711 case lir_idiv:
712 case lir_irem: {
713 assert(op->as_Op3() != nullptr, "must be");
714 LIR_Op3* op3= (LIR_Op3*)op;
715
716 if (op3->_info) do_info(op3->_info);
717 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
718
719 // second operand is input and temp, so ensure that second operand
720 // and third operand get not the same register
721 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
722 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
723 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
724
725 if (op3->_result->is_valid()) do_output(op3->_result);
726
727 break;
728 }
729
730 case lir_fmad:
731 case lir_fmaf: {
732 assert(op->as_Op3() != nullptr, "must be");
733 LIR_Op3* op3= (LIR_Op3*)op;
734 assert(op3->_info == nullptr, "no info");
735 do_input(op3->_opr1);
736 do_input(op3->_opr2);
737 do_input(op3->_opr3);
738 do_output(op3->_result);
739 break;
740 }
741
742 // LIR_OpJavaCall
743 case lir_static_call:
744 case lir_optvirtual_call:
745 case lir_icvirtual_call:
746 case lir_dynamic_call: {
747 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
748 assert(opJavaCall != nullptr, "must be");
749
750 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
751
752 // only visit register parameters
753 int n = opJavaCall->_arguments->length();
754 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
755 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
756 do_input(*opJavaCall->_arguments->adr_at(i));
757 }
758 }
759
760 if (opJavaCall->_info) do_info(opJavaCall->_info);
761 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
762 opJavaCall->is_method_handle_invoke()) {
763 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
764 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
765 }
766 do_call();
767 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
768
769 break;
770 }
771
772
773 // LIR_OpRTCall
774 case lir_rtcall: {
775 assert(op->as_OpRTCall() != nullptr, "must be");
776 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
777
778 // only visit register parameters
779 int n = opRTCall->_arguments->length();
780 for (int i = 0; i < n; i++) {
781 if (!opRTCall->_arguments->at(i)->is_pointer()) {
782 do_input(*opRTCall->_arguments->adr_at(i));
783 }
784 }
785 if (opRTCall->_info) do_info(opRTCall->_info);
786 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
787 do_call();
788 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
789
790 break;
791 }
792
793
794 // LIR_OpArrayCopy
795 case lir_arraycopy: {
796 assert(op->as_OpArrayCopy() != nullptr, "must be");
797 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
798
799 assert(opArrayCopy->_result->is_illegal(), "unused");
800 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
801 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
802 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
803 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
804 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
805 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
806 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
807
808 // the implementation of arraycopy always has a call into the runtime
809 do_call();
810
811 break;
812 }
813
814
815 // LIR_OpUpdateCRC32
816 case lir_updatecrc32: {
817 assert(op->as_OpUpdateCRC32() != nullptr, "must be");
818 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
819
820 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
821 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
822 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
823 assert(opUp->_info == nullptr, "no info for LIR_OpUpdateCRC32");
824
825 break;
826 }
827
828
829 // LIR_OpLock
830 case lir_lock:
831 case lir_unlock: {
832 assert(op->as_OpLock() != nullptr, "must be");
833 LIR_OpLock* opLock = (LIR_OpLock*)op;
834
835 if (opLock->_info) do_info(opLock->_info);
836
837 // TODO: check if these operands really have to be temp
838 // (or if input is sufficient). This may have influence on the oop map!
839 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
840 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
841 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
842
843 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
844 assert(opLock->_result->is_illegal(), "unused");
845
846 do_stub(opLock->_stub);
847 do_stub(opLock->_throw_ie_stub);
848
849 break;
850 }
851
852
853 // LIR_OpDelay
854 case lir_delay_slot: {
855 assert(op->as_OpDelay() != nullptr, "must be");
856 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
857
858 visit(opDelay->delay_op());
859 break;
860 }
861
862 // LIR_OpTypeCheck
863 case lir_instanceof:
864 case lir_checkcast:
865 case lir_store_check: {
866 assert(op->as_OpTypeCheck() != nullptr, "must be");
867 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
868
869 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
870 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
871 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
872 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
873 do_temp(opTypeCheck->_object);
874 }
875 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
876 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
877 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
878 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
879 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
880 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
881 break;
882 }
883
884 // LIR_OpFlattenedArrayCheck
885 case lir_flat_array_check: {
886 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
887 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
888
889 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
890 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
891 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
892
893 do_stub(opFlattenedArrayCheck->_stub);
894
895 break;
896 }
897
898 // LIR_OpNullFreeArrayCheck
899 case lir_null_free_array_check: {
900 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
901 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
902
903 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
904 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
905 break;
906 }
907
908 // LIR_OpSubstitutabilityCheck
909 case lir_substitutability_check: {
910 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
911 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
912 do_input(opSubstitutabilityCheck->_left);
913 do_temp (opSubstitutabilityCheck->_left);
914 do_input(opSubstitutabilityCheck->_right);
915 do_temp (opSubstitutabilityCheck->_right);
916 do_input(opSubstitutabilityCheck->_equal_result);
917 do_temp (opSubstitutabilityCheck->_equal_result);
918 do_input(opSubstitutabilityCheck->_not_equal_result);
919 do_temp (opSubstitutabilityCheck->_not_equal_result);
920 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
921 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
922 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
923 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
924 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
925
926 do_info(opSubstitutabilityCheck->_info);
927 do_stub(opSubstitutabilityCheck->_stub);
928 break;
929 }
930
931 // LIR_OpCompareAndSwap
932 case lir_cas_long:
933 case lir_cas_obj:
934 case lir_cas_int: {
935 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
936 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
937
938 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
939 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
940 do_temp(opCmpAndSwap->_addr);
941 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
942 do_temp(opCmpAndSwap->_cmp_value);
943 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
944 do_temp(opCmpAndSwap->_new_value);
945 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
946 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
947 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
948
949 break;
950 }
951
952
953 // LIR_OpAllocArray;
954 case lir_alloc_array: {
955 assert(op->as_OpAllocArray() != nullptr, "must be");
956 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
957
958 if (opAllocArray->_info) do_info(opAllocArray->_info);
959 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
960 do_temp(opAllocArray->_klass);
961 }
962 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
963 do_temp(opAllocArray->_len);
964 }
965 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
966 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
967 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
968 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
969 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
970 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
971 break;
972 }
973
974 // LIR_OpLoadKlass
975 case lir_load_klass:
976 {
977 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
978 assert(opLoadKlass != nullptr, "must be");
979
980 do_input(opLoadKlass->_obj);
981 do_output(opLoadKlass->_result);
982 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
983 break;
984 }
985
986
987 // LIR_OpProfileCall:
988 case lir_profile_call: {
989 assert(op->as_OpProfileCall() != nullptr, "must be");
990 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
991
992 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
993 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
994 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
995 break;
996 }
997
998 // LIR_OpProfileType:
999 case lir_profile_type: {
1000 assert(op->as_OpProfileType() != nullptr, "must be");
1001 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
1002
1003 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
1004 do_input(opProfileType->_obj);
1005 do_temp(opProfileType->_tmp);
1006 break;
1007 }
1008
1009 // LIR_OpProfileInlineType:
1010 case lir_profile_inline_type: {
1011 assert(op->as_OpProfileInlineType() != nullptr, "must be");
1012 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
1013
1014 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1015 do_input(opProfileInlineType->_obj);
1016 do_temp(opProfileInlineType->_tmp);
1017 break;
1018 }
1019 default:
1020 op->visit(this);
1021 }
1022 }
1023
1024 void LIR_Op::visit(LIR_OpVisitState* state) {
1025 ShouldNotReachHere();
1026 }
1027
1028 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1029 if (stub != nullptr) {
1030 stub->visit(this);
1031 }
1032 }
1033
1034 XHandlers* LIR_OpVisitState::all_xhandler() {
1035 XHandlers* result = nullptr;
1036
1037 int i;
1038 for (i = 0; i < info_count(); i++) {
1039 if (info_at(i)->exception_handlers() != nullptr) {
1040 result = info_at(i)->exception_handlers();
1041 break;
1042 }
1043 }
1044
1045 #ifdef ASSERT
1046 for (i = 0; i < info_count(); i++) {
1047 assert(info_at(i)->exception_handlers() == nullptr ||
1048 info_at(i)->exception_handlers() == result,
1049 "only one xhandler list allowed per LIR-operation");
1050 }
1051 #endif
1052
1053 if (result != nullptr) {
1054 return result;
1055 } else {
1056 return new XHandlers();
1057 }
1058
1059 return result;
1060 }
1061
1062
1063 #ifdef ASSERT
1064 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1065 visit(op);
1066
1067 return opr_count(inputMode) == 0 &&
1068 opr_count(outputMode) == 0 &&
1069 opr_count(tempMode) == 0 &&
1070 info_count() == 0 &&
1071 !has_call() &&
1072 !has_slow_case();
1073 }
1074 #endif
1075
1076 // LIR_OpReturn
1077 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1078 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1079 _stub(nullptr) {
1080 if (VM_Version::supports_stack_watermark_barrier()) {
1081 _stub = new C1SafepointPollStub();
1082 }
1083 }
1084
1085 //---------------------------------------------------
1086
1087
1088 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1089 masm->emit_call(this);
1090 }
1091
1092 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1093 ciType* return_type = method()->return_type();
1094 if (InlineTypeReturnedAsFields) {
1095 if (return_type->is_inlinetype()) {
1096 ciInlineKlass* vk = return_type->as_inline_klass();
1097 if (vk->can_be_returned_as_fields()) {
1098 if (vk_ret != nullptr) {
1099 *vk_ret = vk;
1100 }
1101 return true;
1102 }
1103 } else if (return_type->is_instance_klass() &&
1104 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1105 StressCallingConvention)) {
1106 // An inline type might be returned from the call but we don't know its type.
1107 // This can happen with method handle intrinsics or when the return type is
1108 // not loaded (method holder is not loaded or preload attribute is missing).
1109 // If an inline type is returned, we either get an oop to a buffer and nothing
1110 // needs to be done or one of the values being returned is the klass of the
1111 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1112 // type instance of that type and initialize it with the fields values being
1113 // returned in other registers.
1114 return true;
1115 }
1116 }
1117 return false;
1118 }
1119
1120 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1121 masm->emit_rtcall(this);
1122 }
1123
1124 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1125 masm->emit_opLabel(this);
1126 }
1127
1128 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1129 masm->emit_arraycopy(this);
1130 ArrayCopyStub* code_stub = stub();
1131 if (code_stub != nullptr) {
1132 masm->append_code_stub(code_stub);
1133 }
1134 }
1135
1136 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1137 masm->emit_updatecrc32(this);
1138 }
1139
1140 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1141 masm->emit_op0(this);
1142 }
1143
1144 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1145 masm->emit_op1(this);
1146 }
1147
1148 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1149 masm->emit_alloc_obj(this);
1150 masm->append_code_stub(stub());
1151 }
1152
1153 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1154 masm->emit_opBranch(this);
1155 if (stub()) {
1156 masm->append_code_stub(stub());
1157 }
1158 }
1159
1160 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1161 masm->emit_opConvert(this);
1162 if (stub() != nullptr) {
1163 masm->append_code_stub(stub());
1164 }
1165 }
1166
1167 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1168 masm->emit_op2(this);
1169 }
1170
1171 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1172 masm->emit_alloc_array(this);
1173 masm->append_code_stub(stub());
1174 }
1175
1176 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1177 masm->emit_opTypeCheck(this);
1178 if (stub()) {
1179 masm->append_code_stub(stub());
1180 }
1181 }
1182
1183 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1184 masm->emit_opFlattenedArrayCheck(this);
1185 if (stub() != nullptr) {
1186 masm->append_code_stub(stub());
1187 }
1188 }
1189
1190 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1191 masm->emit_opNullFreeArrayCheck(this);
1192 }
1193
1194 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1195 masm->emit_opSubstitutabilityCheck(this);
1196 if (stub() != nullptr) {
1197 masm->append_code_stub(stub());
1198 }
1199 }
1200
1201 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1202 masm->emit_compare_and_swap(this);
1203 }
1204
1205 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1206 masm->emit_op3(this);
1207 }
1208
1209 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1210 masm->emit_op4(this);
1211 }
1212
1213 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1214 masm->emit_lock(this);
1215 if (stub()) {
1216 masm->append_code_stub(stub());
1217 }
1218 if (throw_ie_stub()) {
1219 masm->append_code_stub(throw_ie_stub());
1220 }
1221 }
1222
1223 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1224 masm->emit_load_klass(this);
1225 }
1226
1227 #ifdef ASSERT
1228 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1229 masm->emit_assert(this);
1230 }
1231 #endif
1232
1233 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1234 masm->emit_delay(this);
1235 }
1236
1237 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1238 masm->emit_profile_call(this);
1239 }
1240
1241 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1242 masm->emit_profile_type(this);
1243 }
1244
1245 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1246 masm->emit_profile_inline_type(this);
1247 }
1248
1249 // LIR_List
1250 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1251 : _operations(8)
1252 , _compilation(compilation)
1253 #ifndef PRODUCT
1254 , _block(block)
1255 #endif
1256 #ifdef ASSERT
1257 , _file(nullptr)
1258 , _line(0)
1259 #endif
1260 #ifdef RISCV
1261 , _cmp_opr1(LIR_OprFact::illegalOpr)
1262 , _cmp_opr2(LIR_OprFact::illegalOpr)
1263 #endif
1264 { }
1265
1266
1267 #ifdef ASSERT
1268 void LIR_List::set_file_and_line(const char * file, int line) {
1269 const char * f = strrchr(file, '/');
1270 if (f == nullptr) f = strrchr(file, '\\');
1271 if (f == nullptr) {
1272 f = file;
1273 } else {
1274 f++;
1275 }
1276 _file = f;
1277 _line = line;
1278 }
1279 #endif
1280
1281 #ifdef RISCV
1282 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1283 switch (op->code()) {
1284 case lir_cmp:
1285 _cmp_opr1 = op->as_Op2()->in_opr1();
1286 _cmp_opr2 = op->as_Op2()->in_opr2();
1287 break;
1288 case lir_branch: // fall through
1289 case lir_cond_float_branch:
1290 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1291 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1292 "conditional branches must have legal operands");
1293 if (op->as_OpBranch()->cond() != lir_cond_always) {
1294 op->as_Op2()->set_in_opr1(_cmp_opr1);
1295 op->as_Op2()->set_in_opr2(_cmp_opr2);
1296 }
1297 break;
1298 case lir_cmove:
1299 op->as_Op4()->set_in_opr3(_cmp_opr1);
1300 op->as_Op4()->set_in_opr4(_cmp_opr2);
1301 break;
1302 case lir_cas_long:
1303 case lir_cas_obj:
1304 case lir_cas_int:
1305 _cmp_opr1 = op->as_OpCompareAndSwap()->result_opr();
1306 _cmp_opr2 = LIR_OprFact::intConst(0);
1307 break;
1308 #if INCLUDE_ZGC
1309 case lir_xloadbarrier_test:
1310 _cmp_opr1 = FrameMap::as_opr(t1);
1311 _cmp_opr2 = LIR_OprFact::intConst(0);
1312 break;
1313 #endif
1314 default:
1315 break;
1316 }
1317 }
1318 #endif
1319
1320 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1321 assert(this == buffer->lir_list(), "wrong lir list");
1322 const int n = _operations.length();
1323
1324 if (buffer->number_of_ops() > 0) {
1325 // increase size of instructions list
1326 _operations.at_grow(n + buffer->number_of_ops() - 1, nullptr);
1327 // insert ops from buffer into instructions list
1328 int op_index = buffer->number_of_ops() - 1;
1329 int ip_index = buffer->number_of_insertion_points() - 1;
1330 int from_index = n - 1;
1331 int to_index = _operations.length() - 1;
1332 for (; ip_index >= 0; ip_index --) {
1333 int index = buffer->index_at(ip_index);
1334 // make room after insertion point
1335 while (index < from_index) {
1336 _operations.at_put(to_index --, _operations.at(from_index --));
1337 }
1338 // insert ops from buffer
1339 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1340 _operations.at_put(to_index --, buffer->op_at(op_index --));
1341 }
1342 }
1343 }
1344
1345 buffer->finish();
1346 }
1347
1348
1349 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1350 assert(reg->type() == T_OBJECT, "bad reg");
1351 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1352 }
1353
1354 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1355 assert(reg->type() == T_METADATA, "bad reg");
1356 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1357 }
1358
1359 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1360 append(new LIR_Op1(
1361 lir_move,
1362 LIR_OprFact::address(addr),
1363 src,
1364 addr->type(),
1365 patch_code,
1366 info));
1367 }
1368
1369
1370 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1371 append(new LIR_Op1(
1372 lir_move,
1373 LIR_OprFact::address(address),
1374 dst,
1375 address->type(),
1376 patch_code,
1377 info, lir_move_volatile));
1378 }
1379
1380 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1381 append(new LIR_Op1(
1382 lir_move,
1383 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1384 dst,
1385 type,
1386 patch_code,
1387 info, lir_move_volatile));
1388 }
1389
1390
1391 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1392 append(new LIR_Op1(
1393 lir_move,
1394 LIR_OprFact::intConst(v),
1395 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1396 type,
1397 patch_code,
1398 info));
1399 }
1400
1401
1402 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1403 append(new LIR_Op1(
1404 lir_move,
1405 LIR_OprFact::oopConst(o),
1406 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1407 type,
1408 patch_code,
1409 info));
1410 }
1411
1412
1413 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1414 append(new LIR_Op1(
1415 lir_move,
1416 src,
1417 LIR_OprFact::address(addr),
1418 addr->type(),
1419 patch_code,
1420 info));
1421 }
1422
1423
1424 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1425 append(new LIR_Op1(
1426 lir_move,
1427 src,
1428 LIR_OprFact::address(addr),
1429 addr->type(),
1430 patch_code,
1431 info,
1432 lir_move_volatile));
1433 }
1434
1435 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1436 append(new LIR_Op1(
1437 lir_move,
1438 src,
1439 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1440 type,
1441 patch_code,
1442 info, lir_move_volatile));
1443 }
1444
1445
1446 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1447 append(new LIR_Op3(
1448 lir_idiv,
1449 left,
1450 right,
1451 tmp,
1452 res,
1453 info));
1454 }
1455
1456
1457 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1458 append(new LIR_Op3(
1459 lir_idiv,
1460 left,
1461 LIR_OprFact::intConst(right),
1462 tmp,
1463 res,
1464 info));
1465 }
1466
1467
1468 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1469 append(new LIR_Op3(
1470 lir_irem,
1471 left,
1472 right,
1473 tmp,
1474 res,
1475 info));
1476 }
1477
1478
1479 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1480 append(new LIR_Op3(
1481 lir_irem,
1482 left,
1483 LIR_OprFact::intConst(right),
1484 tmp,
1485 res,
1486 info));
1487 }
1488
1489
1490 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1491 append(new LIR_Op2(
1492 lir_cmp,
1493 condition,
1494 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1495 LIR_OprFact::intConst(c),
1496 info));
1497 }
1498
1499
1500 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1501 append(new LIR_Op2(
1502 lir_cmp,
1503 condition,
1504 reg,
1505 LIR_OprFact::address(addr),
1506 info));
1507 }
1508
1509 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1510 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1511 append(new LIR_OpAllocObj(
1512 klass,
1513 dst,
1514 t1,
1515 t2,
1516 t3,
1517 t4,
1518 header_size,
1519 object_size,
1520 init_check,
1521 stub));
1522 }
1523
1524 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 is_null_free) {
1525 append(new LIR_OpAllocArray(
1526 klass,
1527 len,
1528 dst,
1529 t1,
1530 t2,
1531 t3,
1532 t4,
1533 type,
1534 stub,
1535 zero_array,
1536 is_null_free));
1537 }
1538
1539 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1540 append(new LIR_Op2(
1541 lir_shl,
1542 value,
1543 count,
1544 dst,
1545 tmp));
1546 }
1547
1548 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1549 append(new LIR_Op2(
1550 lir_shr,
1551 value,
1552 count,
1553 dst,
1554 tmp));
1555 }
1556
1557
1558 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1559 append(new LIR_Op2(
1560 lir_ushr,
1561 value,
1562 count,
1563 dst,
1564 tmp));
1565 }
1566
1567 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1568 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1569 left,
1570 right,
1571 dst));
1572 }
1573
1574 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) {
1575 append(new LIR_OpLock(
1576 lir_lock,
1577 hdr,
1578 obj,
1579 lock,
1580 scratch,
1581 stub,
1582 info,
1583 throw_ie_stub));
1584 }
1585
1586 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1587 append(new LIR_OpLock(
1588 lir_unlock,
1589 hdr,
1590 obj,
1591 lock,
1592 scratch,
1593 stub,
1594 nullptr));
1595 }
1596
1597
1598 void check_LIR() {
1599 // cannot do the proper checking as PRODUCT and other modes return different results
1600 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1601 }
1602
1603
1604
1605 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1606 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1607 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1608 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1609 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1610 // on the object.
1611 bool need_null_check = !is_null_free;
1612 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1613 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1614 need_null_check);
1615 if (profiled_method != nullptr) {
1616 c->set_profiled_method(profiled_method);
1617 c->set_profiled_bci(profiled_bci);
1618 c->set_should_profile(true);
1619 }
1620 append(c);
1621 }
1622
1623 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) {
1624 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1625 if (profiled_method != nullptr) {
1626 c->set_profiled_method(profiled_method);
1627 c->set_profiled_bci(profiled_bci);
1628 c->set_should_profile(true);
1629 }
1630 append(c);
1631 }
1632
1633
1634 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1635 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1636 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1637 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1638 if (profiled_method != nullptr) {
1639 c->set_profiled_method(profiled_method);
1640 c->set_profiled_bci(profiled_bci);
1641 c->set_should_profile(true);
1642 }
1643 append(c);
1644 }
1645
1646 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1647 if (deoptimize_on_null) {
1648 // Emit an explicit null check and deoptimize if opr is null
1649 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1650 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1651 branch(lir_cond_equal, deopt);
1652 } else {
1653 // Emit an implicit null check
1654 append(new LIR_Op1(lir_null_check, opr, info));
1655 }
1656 }
1657
1658 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1659 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1660 append(c);
1661 }
1662
1663 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1664 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1665 append(c);
1666 }
1667
1668 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1669 LIR_Opr tmp1, LIR_Opr tmp2,
1670 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1671 CodeEmitInfo* info, CodeStub* stub) {
1672 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1673 tmp1, tmp2,
1674 left_klass, right_klass, left_klass_op, right_klass_op,
1675 info, stub);
1676 append(c);
1677 }
1678
1679 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1680 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1681 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1682 }
1683
1684 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1685 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1686 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1687 }
1688
1689 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1690 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1691 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1692 }
1693
1694
1695 #ifdef PRODUCT
1696
1697 void print_LIR(BlockList* blocks) {
1698 }
1699
1700 #else
1701 // LIR_Opr
1702 void LIR_Opr::print() const {
1703 print(tty);
1704 }
1705
1706 void LIR_Opr::print(outputStream* out) const {
1707 if (is_illegal()) {
1708 return;
1709 }
1710
1711 out->print("[");
1712 if (is_pointer()) {
1713 pointer()->print_value_on(out);
1714 } else if (is_single_stack()) {
1715 out->print("stack:%d", single_stack_ix());
1716 } else if (is_double_stack()) {
1717 out->print("dbl_stack:%d",double_stack_ix());
1718 } else if (is_virtual()) {
1719 out->print("R%d", vreg_number());
1720 } else if (is_single_cpu()) {
1721 out->print("%s", as_register()->name());
1722 } else if (is_double_cpu()) {
1723 out->print("%s", as_register_hi()->name());
1724 out->print("%s", as_register_lo()->name());
1725 #if defined(X86)
1726 } else if (is_single_xmm()) {
1727 out->print("%s", as_xmm_float_reg()->name());
1728 } else if (is_double_xmm()) {
1729 out->print("%s", as_xmm_double_reg()->name());
1730 } else if (is_single_fpu()) {
1731 out->print("fpu%d", fpu_regnr());
1732 } else if (is_double_fpu()) {
1733 out->print("fpu%d", fpu_regnrLo());
1734 #elif defined(AARCH64)
1735 } else if (is_single_fpu()) {
1736 out->print("fpu%d", fpu_regnr());
1737 } else if (is_double_fpu()) {
1738 out->print("fpu%d", fpu_regnrLo());
1739 #elif defined(ARM)
1740 } else if (is_single_fpu()) {
1741 out->print("s%d", fpu_regnr());
1742 } else if (is_double_fpu()) {
1743 out->print("d%d", fpu_regnrLo() >> 1);
1744 #else
1745 } else if (is_single_fpu()) {
1746 out->print("%s", as_float_reg()->name());
1747 } else if (is_double_fpu()) {
1748 out->print("%s", as_double_reg()->name());
1749 #endif
1750
1751 } else if (is_illegal()) {
1752 out->print("-");
1753 } else {
1754 out->print("Unknown Operand");
1755 }
1756 if (!is_illegal()) {
1757 out->print("|%c", type_char());
1758 }
1759 if (is_register() && is_last_use()) {
1760 out->print("(last_use)");
1761 }
1762 out->print("]");
1763 }
1764
1765
1766 // LIR_Address
1767 void LIR_Const::print_value_on(outputStream* out) const {
1768 switch (type()) {
1769 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1770 case T_INT: out->print("int:%d", as_jint()); break;
1771 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1772 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1773 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1774 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1775 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1776 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1777 }
1778 }
1779
1780 // LIR_Address
1781 void LIR_Address::print_value_on(outputStream* out) const {
1782 out->print("Base:"); _base->print(out);
1783 if (!_index->is_illegal()) {
1784 out->print(" Index:"); _index->print(out);
1785 switch (scale()) {
1786 case times_1: break;
1787 case times_2: out->print(" * 2"); break;
1788 case times_4: out->print(" * 4"); break;
1789 case times_8: out->print(" * 8"); break;
1790 }
1791 }
1792 out->print(" Disp: " INTX_FORMAT, _disp);
1793 }
1794
1795 // debug output of block header without InstructionPrinter
1796 // (because phi functions are not necessary for LIR)
1797 static void print_block(BlockBegin* x) {
1798 // print block id
1799 BlockEnd* end = x->end();
1800 tty->print("B%d ", x->block_id());
1801
1802 // print flags
1803 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1804 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1805 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1806 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1807 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1808 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1809 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1810
1811 // print block bci range
1812 tty->print("[%d, %d] ", x->bci(), (end == nullptr ? -1 : end->printable_bci()));
1813
1814 // print predecessors and successors
1815 if (x->number_of_preds() > 0) {
1816 tty->print("preds: ");
1817 for (int i = 0; i < x->number_of_preds(); i ++) {
1818 tty->print("B%d ", x->pred_at(i)->block_id());
1819 }
1820 }
1821
1822 if (end != nullptr && x->number_of_sux() > 0) {
1823 tty->print("sux: ");
1824 for (int i = 0; i < x->number_of_sux(); i ++) {
1825 tty->print("B%d ", x->sux_at(i)->block_id());
1826 }
1827 }
1828
1829 // print exception handlers
1830 if (x->number_of_exception_handlers() > 0) {
1831 tty->print("xhandler: ");
1832 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1833 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1834 }
1835 }
1836
1837 tty->cr();
1838 }
1839
1840 void print_LIR(BlockList* blocks) {
1841 tty->print_cr("LIR:");
1842 int i;
1843 for (i = 0; i < blocks->length(); i++) {
1844 BlockBegin* bb = blocks->at(i);
1845 print_block(bb);
1846 tty->print("__id_Instruction___________________________________________"); tty->cr();
1847 bb->lir()->print_instructions();
1848 }
1849 }
1850
1851 void LIR_List::print_instructions() {
1852 for (int i = 0; i < _operations.length(); i++) {
1853 _operations.at(i)->print(); tty->cr();
1854 }
1855 tty->cr();
1856 }
1857
1858 // LIR_Ops printing routines
1859 // LIR_Op
1860 void LIR_Op::print_on(outputStream* out) const {
1861 if (id() != -1 || PrintCFGToFile) {
1862 out->print("%4d ", id());
1863 } else {
1864 out->print(" ");
1865 }
1866 out->print("%s ", name());
1867 print_instr(out);
1868 if (info() != nullptr) out->print(" [bci:%d]", info()->stack()->bci());
1869 #ifdef ASSERT
1870 if (Verbose && _file != nullptr) {
1871 out->print(" (%s:%d)", _file, _line);
1872 }
1873 #endif
1874 }
1875
1876 const char * LIR_Op::name() const {
1877 const char* s = nullptr;
1878 switch(code()) {
1879 // LIR_Op0
1880 case lir_membar: s = "membar"; break;
1881 case lir_membar_acquire: s = "membar_acquire"; break;
1882 case lir_membar_release: s = "membar_release"; break;
1883 case lir_membar_loadload: s = "membar_loadload"; break;
1884 case lir_membar_storestore: s = "membar_storestore"; break;
1885 case lir_membar_loadstore: s = "membar_loadstore"; break;
1886 case lir_membar_storeload: s = "membar_storeload"; break;
1887 case lir_label: s = "label"; break;
1888 case lir_nop: s = "nop"; break;
1889 case lir_on_spin_wait: s = "on_spin_wait"; break;
1890 case lir_std_entry: s = "std_entry"; break;
1891 case lir_osr_entry: s = "osr_entry"; break;
1892 case lir_fpop_raw: s = "fpop_raw"; break;
1893 case lir_breakpoint: s = "breakpoint"; break;
1894 case lir_get_thread: s = "get_thread"; break;
1895 case lir_check_orig_pc: s = "check_orig_pc"; break;
1896 // LIR_Op1
1897 case lir_fxch: s = "fxch"; break;
1898 case lir_fld: s = "fld"; break;
1899 case lir_push: s = "push"; break;
1900 case lir_pop: s = "pop"; break;
1901 case lir_null_check: s = "null_check"; break;
1902 case lir_return: s = "return"; break;
1903 case lir_safepoint: s = "safepoint"; break;
1904 case lir_leal: s = "leal"; break;
1905 case lir_branch: s = "branch"; break;
1906 case lir_cond_float_branch: s = "flt_cond_br"; break;
1907 case lir_move: s = "move"; break;
1908 case lir_roundfp: s = "roundfp"; break;
1909 case lir_rtcall: s = "rtcall"; break;
1910 case lir_throw: s = "throw"; break;
1911 case lir_unwind: s = "unwind"; break;
1912 case lir_convert: s = "convert"; break;
1913 case lir_alloc_object: s = "alloc_obj"; break;
1914 case lir_monaddr: s = "mon_addr"; break;
1915 // LIR_Op2
1916 case lir_cmp: s = "cmp"; break;
1917 case lir_cmp_l2i: s = "cmp_l2i"; break;
1918 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1919 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1920 case lir_add: s = "add"; break;
1921 case lir_sub: s = "sub"; break;
1922 case lir_mul: s = "mul"; break;
1923 case lir_div: s = "div"; break;
1924 case lir_rem: s = "rem"; break;
1925 case lir_abs: s = "abs"; break;
1926 case lir_neg: s = "neg"; break;
1927 case lir_sqrt: s = "sqrt"; break;
1928 case lir_f2hf: s = "f2hf"; break;
1929 case lir_hf2f: s = "hf2f"; break;
1930 case lir_logic_and: s = "logic_and"; break;
1931 case lir_logic_or: s = "logic_or"; break;
1932 case lir_logic_xor: s = "logic_xor"; break;
1933 case lir_shl: s = "shift_left"; break;
1934 case lir_shr: s = "shift_right"; break;
1935 case lir_ushr: s = "ushift_right"; break;
1936 case lir_alloc_array: s = "alloc_array"; break;
1937 case lir_xadd: s = "xadd"; break;
1938 case lir_xchg: s = "xchg"; break;
1939 // LIR_Op3
1940 case lir_idiv: s = "idiv"; break;
1941 case lir_irem: s = "irem"; break;
1942 case lir_fmad: s = "fmad"; break;
1943 case lir_fmaf: s = "fmaf"; break;
1944 // LIR_Op4
1945 case lir_cmove: s = "cmove"; break;
1946 // LIR_OpJavaCall
1947 case lir_static_call: s = "static"; break;
1948 case lir_optvirtual_call: s = "optvirtual"; break;
1949 case lir_icvirtual_call: s = "icvirtual"; break;
1950 case lir_dynamic_call: s = "dynamic"; break;
1951 // LIR_OpArrayCopy
1952 case lir_arraycopy: s = "arraycopy"; break;
1953 // LIR_OpUpdateCRC32
1954 case lir_updatecrc32: s = "updatecrc32"; break;
1955 // LIR_OpLock
1956 case lir_lock: s = "lock"; break;
1957 case lir_unlock: s = "unlock"; break;
1958 // LIR_OpDelay
1959 case lir_delay_slot: s = "delay"; break;
1960 // LIR_OpTypeCheck
1961 case lir_instanceof: s = "instanceof"; break;
1962 case lir_checkcast: s = "checkcast"; break;
1963 case lir_store_check: s = "store_check"; break;
1964 // LIR_OpFlattenedArrayCheck
1965 case lir_flat_array_check: s = "flat_array_check"; break;
1966 // LIR_OpNullFreeArrayCheck
1967 case lir_null_free_array_check: s = "null_free_array_check"; break;
1968 // LIR_OpSubstitutabilityCheck
1969 case lir_substitutability_check: s = "substitutability_check"; break;
1970 // LIR_OpCompareAndSwap
1971 case lir_cas_long: s = "cas_long"; break;
1972 case lir_cas_obj: s = "cas_obj"; break;
1973 case lir_cas_int: s = "cas_int"; break;
1974 // LIR_OpProfileCall
1975 case lir_profile_call: s = "profile_call"; break;
1976 // LIR_OpProfileType
1977 case lir_profile_type: s = "profile_type"; break;
1978 // LIR_OpProfileInlineType
1979 case lir_profile_inline_type: s = "profile_inline_type"; break;
1980 // LIR_OpAssert
1981 #ifdef ASSERT
1982 case lir_assert: s = "assert"; break;
1983 #endif
1984 case lir_none: ShouldNotReachHere();break;
1985 default: s = "illegal_op"; break;
1986 }
1987 return s;
1988 }
1989
1990 // LIR_OpJavaCall
1991 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1992 out->print("call: ");
1993 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1994 if (receiver()->is_valid()) {
1995 out->print(" [recv: "); receiver()->print(out); out->print("]");
1996 }
1997 if (result_opr()->is_valid()) {
1998 out->print(" [result: "); result_opr()->print(out); out->print("]");
1999 }
2000 }
2001
2002 // LIR_OpLabel
2003 void LIR_OpLabel::print_instr(outputStream* out) const {
2004 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
2005 }
2006
2007 // LIR_OpArrayCopy
2008 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
2009 src()->print(out); out->print(" ");
2010 src_pos()->print(out); out->print(" ");
2011 dst()->print(out); out->print(" ");
2012 dst_pos()->print(out); out->print(" ");
2013 length()->print(out); out->print(" ");
2014 tmp()->print(out); out->print(" ");
2015 }
2016
2017 // LIR_OpUpdateCRC32
2018 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
2019 crc()->print(out); out->print(" ");
2020 val()->print(out); out->print(" ");
2021 result_opr()->print(out); out->print(" ");
2022 }
2023
2024 // LIR_OpCompareAndSwap
2025 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
2026 addr()->print(out); out->print(" ");
2027 cmp_value()->print(out); out->print(" ");
2028 new_value()->print(out); out->print(" ");
2029 tmp1()->print(out); out->print(" ");
2030 tmp2()->print(out); out->print(" ");
2031
2032 }
2033
2034 // LIR_Op0
2035 void LIR_Op0::print_instr(outputStream* out) const {
2036 result_opr()->print(out);
2037 }
2038
2039 // LIR_Op1
2040 const char * LIR_Op1::name() const {
2041 if (code() == lir_move) {
2042 switch (move_kind()) {
2043 case lir_move_normal:
2044 return "move";
2045 case lir_move_volatile:
2046 return "volatile_move";
2047 case lir_move_wide:
2048 return "wide_move";
2049 default:
2050 ShouldNotReachHere();
2051 return "illegal_op";
2052 }
2053 } else {
2054 return LIR_Op::name();
2055 }
2056 }
2057
2058
2059 void LIR_Op1::print_instr(outputStream* out) const {
2060 _opr->print(out); out->print(" ");
2061 result_opr()->print(out); out->print(" ");
2062 print_patch_code(out, patch_code());
2063 }
2064
2065
2066 // LIR_Op1
2067 void LIR_OpRTCall::print_instr(outputStream* out) const {
2068 intx a = (intx)addr();
2069 out->print("%s", Runtime1::name_for_address(addr()));
2070 out->print(" ");
2071 tmp()->print(out);
2072 }
2073
2074 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2075 switch(code) {
2076 case lir_patch_none: break;
2077 case lir_patch_low: out->print("[patch_low]"); break;
2078 case lir_patch_high: out->print("[patch_high]"); break;
2079 case lir_patch_normal: out->print("[patch_normal]"); break;
2080 default: ShouldNotReachHere();
2081 }
2082 }
2083
2084 // LIR_OpBranch
2085 void LIR_OpBranch::print_instr(outputStream* out) const {
2086 print_condition(out, cond()); out->print(" ");
2087 in_opr1()->print(out); out->print(" ");
2088 in_opr2()->print(out); out->print(" ");
2089 if (block() != nullptr) {
2090 out->print("[B%d] ", block()->block_id());
2091 } else if (stub() != nullptr) {
2092 out->print("[");
2093 stub()->print_name(out);
2094 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2095 if (stub()->info() != nullptr) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2096 } else {
2097 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2098 }
2099 if (ublock() != nullptr) {
2100 out->print("unordered: [B%d] ", ublock()->block_id());
2101 }
2102 }
2103
2104 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2105 switch(cond) {
2106 case lir_cond_equal: out->print("[EQ]"); break;
2107 case lir_cond_notEqual: out->print("[NE]"); break;
2108 case lir_cond_less: out->print("[LT]"); break;
2109 case lir_cond_lessEqual: out->print("[LE]"); break;
2110 case lir_cond_greaterEqual: out->print("[GE]"); break;
2111 case lir_cond_greater: out->print("[GT]"); break;
2112 case lir_cond_belowEqual: out->print("[BE]"); break;
2113 case lir_cond_aboveEqual: out->print("[AE]"); break;
2114 case lir_cond_always: out->print("[AL]"); break;
2115 default: out->print("[%d]",cond); break;
2116 }
2117 }
2118
2119 // LIR_OpConvert
2120 void LIR_OpConvert::print_instr(outputStream* out) const {
2121 print_bytecode(out, bytecode());
2122 in_opr()->print(out); out->print(" ");
2123 result_opr()->print(out); out->print(" ");
2124 }
2125
2126 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2127 switch(code) {
2128 case Bytecodes::_d2f: out->print("[d2f] "); break;
2129 case Bytecodes::_d2i: out->print("[d2i] "); break;
2130 case Bytecodes::_d2l: out->print("[d2l] "); break;
2131 case Bytecodes::_f2d: out->print("[f2d] "); break;
2132 case Bytecodes::_f2i: out->print("[f2i] "); break;
2133 case Bytecodes::_f2l: out->print("[f2l] "); break;
2134 case Bytecodes::_i2b: out->print("[i2b] "); break;
2135 case Bytecodes::_i2c: out->print("[i2c] "); break;
2136 case Bytecodes::_i2d: out->print("[i2d] "); break;
2137 case Bytecodes::_i2f: out->print("[i2f] "); break;
2138 case Bytecodes::_i2l: out->print("[i2l] "); break;
2139 case Bytecodes::_i2s: out->print("[i2s] "); break;
2140 case Bytecodes::_l2i: out->print("[l2i] "); break;
2141 case Bytecodes::_l2f: out->print("[l2f] "); break;
2142 case Bytecodes::_l2d: out->print("[l2d] "); break;
2143 default:
2144 out->print("[?%d]",code);
2145 break;
2146 }
2147 }
2148
2149 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2150 klass()->print(out); out->print(" ");
2151 obj()->print(out); out->print(" ");
2152 tmp1()->print(out); out->print(" ");
2153 tmp2()->print(out); out->print(" ");
2154 tmp3()->print(out); out->print(" ");
2155 tmp4()->print(out); out->print(" ");
2156 out->print("[hdr:%d]", header_size()); out->print(" ");
2157 out->print("[obj:%d]", object_size()); out->print(" ");
2158 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2159 }
2160
2161 void LIR_OpRoundFP::print_instr(outputStream* out) const {
2162 _opr->print(out); out->print(" ");
2163 tmp()->print(out); out->print(" ");
2164 result_opr()->print(out); out->print(" ");
2165 }
2166
2167 // LIR_Op2
2168 void LIR_Op2::print_instr(outputStream* out) const {
2169 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2170 print_condition(out, condition()); out->print(" ");
2171 }
2172 in_opr1()->print(out); out->print(" ");
2173 in_opr2()->print(out); out->print(" ");
2174 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2175 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2176 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2177 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2178 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2179 result_opr()->print(out);
2180 }
2181
2182 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2183 klass()->print(out); out->print(" ");
2184 len()->print(out); out->print(" ");
2185 obj()->print(out); out->print(" ");
2186 tmp1()->print(out); out->print(" ");
2187 tmp2()->print(out); out->print(" ");
2188 tmp3()->print(out); out->print(" ");
2189 tmp4()->print(out); out->print(" ");
2190 out->print("[type:0x%x]", type()); out->print(" ");
2191 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2192 }
2193
2194
2195 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2196 object()->print(out); out->print(" ");
2197 if (code() == lir_store_check) {
2198 array()->print(out); out->print(" ");
2199 }
2200 if (code() != lir_store_check) {
2201 klass()->print_name_on(out); out->print(" ");
2202 if (fast_check()) out->print("fast_check ");
2203 }
2204 tmp1()->print(out); out->print(" ");
2205 tmp2()->print(out); out->print(" ");
2206 tmp3()->print(out); out->print(" ");
2207 result_opr()->print(out); out->print(" ");
2208 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2209 }
2210
2211 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2212 array()->print(out); out->print(" ");
2213 value()->print(out); out->print(" ");
2214 tmp()->print(out); out->print(" ");
2215 if (stub() != nullptr) {
2216 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2217 }
2218 }
2219
2220 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2221 array()->print(out); out->print(" ");
2222 tmp()->print(out); out->print(" ");
2223 }
2224
2225 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2226 result_opr()->print(out); out->print(" ");
2227 left()->print(out); out->print(" ");
2228 right()->print(out); out->print(" ");
2229 equal_result()->print(out); out->print(" ");
2230 not_equal_result()->print(out); out->print(" ");
2231 tmp1()->print(out); out->print(" ");
2232 tmp2()->print(out); out->print(" ");
2233 if (left_klass() == nullptr) {
2234 out->print("unknown ");
2235 } else {
2236 left_klass()->print(out); out->print(" ");
2237 }
2238 if (right_klass() == nullptr) {
2239 out->print("unknown ");
2240 } else {
2241 right_klass()->print(out); out->print(" ");
2242 }
2243 left_klass_op()->print(out); out->print(" ");
2244 right_klass_op()->print(out); out->print(" ");
2245 if (stub() != nullptr) {
2246 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2247 }
2248 }
2249
2250 // LIR_Op3
2251 void LIR_Op3::print_instr(outputStream* out) const {
2252 in_opr1()->print(out); out->print(" ");
2253 in_opr2()->print(out); out->print(" ");
2254 in_opr3()->print(out); out->print(" ");
2255 result_opr()->print(out);
2256 }
2257
2258 // LIR_Op4
2259 void LIR_Op4::print_instr(outputStream* out) const {
2260 print_condition(out, condition()); out->print(" ");
2261 in_opr1()->print(out); out->print(" ");
2262 in_opr2()->print(out); out->print(" ");
2263 in_opr3()->print(out); out->print(" ");
2264 in_opr4()->print(out); out->print(" ");
2265 result_opr()->print(out);
2266 }
2267
2268 void LIR_OpLock::print_instr(outputStream* out) const {
2269 hdr_opr()->print(out); out->print(" ");
2270 obj_opr()->print(out); out->print(" ");
2271 lock_opr()->print(out); out->print(" ");
2272 if (_scratch->is_valid()) {
2273 _scratch->print(out); out->print(" ");
2274 }
2275 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2276 }
2277
2278 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2279 obj()->print(out); out->print(" ");
2280 result_opr()->print(out); out->print(" ");
2281 }
2282
2283 #ifdef ASSERT
2284 void LIR_OpAssert::print_instr(outputStream* out) const {
2285 print_condition(out, condition()); out->print(" ");
2286 in_opr1()->print(out); out->print(" ");
2287 in_opr2()->print(out); out->print(", \"");
2288 out->print("%s", msg()); out->print("\"");
2289 }
2290 #endif
2291
2292
2293 void LIR_OpDelay::print_instr(outputStream* out) const {
2294 _op->print_on(out);
2295 }
2296
2297
2298 // LIR_OpProfileCall
2299 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2300 profiled_method()->name()->print_symbol_on(out);
2301 out->print(".");
2302 profiled_method()->holder()->name()->print_symbol_on(out);
2303 out->print(" @ %d ", profiled_bci());
2304 mdo()->print(out); out->print(" ");
2305 recv()->print(out); out->print(" ");
2306 tmp1()->print(out); out->print(" ");
2307 }
2308
2309 // LIR_OpProfileType
2310 void LIR_OpProfileType::print_instr(outputStream* out) const {
2311 out->print("exact = ");
2312 if (exact_klass() == nullptr) {
2313 out->print("unknown");
2314 } else {
2315 exact_klass()->print_name_on(out);
2316 }
2317 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2318 out->print(" ");
2319 mdp()->print(out); out->print(" ");
2320 obj()->print(out); out->print(" ");
2321 tmp()->print(out); out->print(" ");
2322 }
2323
2324 // LIR_OpProfileInlineType
2325 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2326 out->print(" flag = %x ", flag());
2327 mdp()->print(out); out->print(" ");
2328 obj()->print(out); out->print(" ");
2329 tmp()->print(out); out->print(" ");
2330 }
2331
2332 #endif // PRODUCT
2333
2334 // Implementation of LIR_InsertionBuffer
2335
2336 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2337 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2338
2339 int i = number_of_insertion_points() - 1;
2340 if (i < 0 || index_at(i) < index) {
2341 append_new(index, 1);
2342 } else {
2343 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2344 assert(count_at(i) > 0, "check");
2345 set_count_at(i, count_at(i) + 1);
2346 }
2347 _ops.push(op);
2348
2349 DEBUG_ONLY(verify());
2350 }
2351
2352 #ifdef ASSERT
2353 void LIR_InsertionBuffer::verify() {
2354 int sum = 0;
2355 int prev_idx = -1;
2356
2357 for (int i = 0; i < number_of_insertion_points(); i++) {
2358 assert(prev_idx < index_at(i), "index must be ordered ascending");
2359 sum += count_at(i);
2360 }
2361 assert(sum == number_of_ops(), "wrong total sum");
2362 }
2363 #endif