1 /*
2 * Copyright (c) 2000, 2022, 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 != NULL && !c->value()->is_loaded()) {
58 return LIR_OprFact::metadataConst(NULL);
59 } else if (c != NULL) {
60 return LIR_OprFact::metadataConst(c->value()->constant_encoding());
61 } else {
62 MethodConstant* m = type->as_MethodConstant();
63 assert (m != NULL, "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 case T_PRIMITIVE_OBJECT:
101 t = T_OBJECT;
102 case T_BOOLEAN:
103 case T_CHAR:
104 case T_FLOAT:
105 case T_DOUBLE:
106 case T_BYTE:
107 case T_SHORT:
108 case T_INT:
109 case T_LONG:
110 case T_OBJECT:
111 case T_ADDRESS:
112 case T_VOID:
113 return ::type2char(t);
114 case T_METADATA:
115 return 'M';
116 case T_ILLEGAL:
117 return '?';
118
119 default:
120 ShouldNotReachHere();
121 return '?';
122 }
123 }
124
125 #ifndef PRODUCT
126 void LIR_Opr::validate_type() const {
127
128 #ifdef ASSERT
129 if (!is_pointer() && !is_illegal()) {
130 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
131 switch (as_BasicType(type_field())) {
132 case T_LONG:
133 assert((kindfield == cpu_register || kindfield == stack_value) &&
134 size_field() == double_size, "must match");
135 break;
136 case T_FLOAT:
137 // FP return values can be also in CPU registers on ARM (softfp ABI)
138 assert((kindfield == fpu_register || kindfield == stack_value
139 ARM_ONLY(|| kindfield == cpu_register) ) &&
140 size_field() == single_size, "must match");
141 break;
142 case T_DOUBLE:
143 // FP return values can be also in CPU registers on ARM (softfp ABI)
144 assert((kindfield == fpu_register || kindfield == stack_value
145 ARM_ONLY(|| kindfield == cpu_register) ) &&
146 size_field() == double_size, "must match");
147 break;
148 case T_BOOLEAN:
149 case T_CHAR:
150 case T_BYTE:
151 case T_SHORT:
152 case T_INT:
153 case T_ADDRESS:
154 case T_OBJECT:
155 case T_METADATA:
156 case T_ARRAY:
157 case T_PRIMITIVE_OBJECT:
158 assert((kindfield == cpu_register || kindfield == stack_value) &&
159 size_field() == single_size, "must match");
160 break;
161
162 case T_ILLEGAL:
163 // XXX TKR also means unknown right now
164 // assert(is_illegal(), "must match");
165 break;
166
167 default:
168 ShouldNotReachHere();
169 }
170 }
171 #endif
172
173 }
174 #endif // PRODUCT
175
176
177 bool LIR_Opr::is_oop() const {
178 if (is_pointer()) {
179 return pointer()->is_oop_pointer();
180 } else {
181 OprType t= type_field();
182 assert(t != unknown_type, "not set");
183 return t == object_type;
184 }
185 }
186
187
188
189 void LIR_Op2::verify() const {
190 #ifdef ASSERT
191 switch (code()) {
192 case lir_xchg:
193 break;
194
195 default:
196 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
197 "can't produce oops from arith");
198 }
199
200 if (TwoOperandLIRForm) {
201
202 #ifdef ASSERT
203 bool threeOperandForm = false;
204 #ifdef S390
205 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
206 threeOperandForm =
207 code() == lir_shl ||
208 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
209 #endif
210 #endif
211
212 switch (code()) {
213 case lir_add:
214 case lir_sub:
215 case lir_mul:
216 case lir_div:
217 case lir_rem:
218 case lir_logic_and:
219 case lir_logic_or:
220 case lir_logic_xor:
221 case lir_shl:
222 case lir_shr:
223 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
224 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
225 break;
226
227 // special handling for lir_ushr because of write barriers
228 case lir_ushr:
229 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
230 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
231 break;
232
233 default:
234 break;
235 }
236 }
237 #endif
238 }
239
240
241 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block)
242 : LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
243 , _label(block->label())
244 , _block(block)
245 , _ublock(NULL)
246 , _stub(NULL) {
247 }
248
249 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) :
250 LIR_Op2(lir_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
251 , _label(stub->entry())
252 , _block(NULL)
253 , _ublock(NULL)
254 , _stub(stub) {
255 }
256
257 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock)
258 : LIR_Op2(lir_cond_float_branch, cond, LIR_OprFact::illegalOpr, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
259 , _label(block->label())
260 , _block(block)
261 , _ublock(ublock)
262 , _stub(NULL)
263 {
264 }
265
266 void LIR_OpBranch::change_block(BlockBegin* b) {
267 assert(_block != NULL, "must have old block");
268 assert(_block->label() == label(), "must be equal");
269
270 _block = b;
271 _label = b->label();
272 }
273
274 void LIR_OpBranch::change_ublock(BlockBegin* b) {
275 assert(_ublock != NULL, "must have old block");
276 _ublock = b;
277 }
278
279 void LIR_OpBranch::negate_cond() {
280 switch (cond()) {
281 case lir_cond_equal: set_cond(lir_cond_notEqual); break;
282 case lir_cond_notEqual: set_cond(lir_cond_equal); break;
283 case lir_cond_less: set_cond(lir_cond_greaterEqual); break;
284 case lir_cond_lessEqual: set_cond(lir_cond_greater); break;
285 case lir_cond_greaterEqual: set_cond(lir_cond_less); break;
286 case lir_cond_greater: set_cond(lir_cond_lessEqual); break;
287 default: ShouldNotReachHere();
288 }
289 }
290
291
292 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
293 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
294 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
295 CodeStub* stub, bool need_null_check)
296
297 : LIR_Op(code, result, NULL)
298 , _object(object)
299 , _array(LIR_OprFact::illegalOpr)
300 , _klass(klass)
301 , _tmp1(tmp1)
302 , _tmp2(tmp2)
303 , _tmp3(tmp3)
304 , _fast_check(fast_check)
305 , _info_for_patch(info_for_patch)
306 , _info_for_exception(info_for_exception)
307 , _stub(stub)
308 , _profiled_method(NULL)
309 , _profiled_bci(-1)
310 , _should_profile(false)
311 , _need_null_check(need_null_check)
312 {
313 if (code == lir_checkcast) {
314 assert(info_for_exception != NULL, "checkcast throws exceptions");
315 } else if (code == lir_instanceof) {
316 assert(info_for_exception == NULL, "instanceof throws no exceptions");
317 } else {
318 ShouldNotReachHere();
319 }
320 }
321
322
323
324 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)
325 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
326 , _object(object)
327 , _array(array)
328 , _klass(NULL)
329 , _tmp1(tmp1)
330 , _tmp2(tmp2)
331 , _tmp3(tmp3)
332 , _fast_check(false)
333 , _info_for_patch(NULL)
334 , _info_for_exception(info_for_exception)
335 , _stub(NULL)
336 , _profiled_method(NULL)
337 , _profiled_bci(-1)
338 , _should_profile(false)
339 , _need_null_check(true)
340 {
341 if (code == lir_store_check) {
342 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
343 assert(info_for_exception != NULL, "store_check throws exceptions");
344 } else {
345 ShouldNotReachHere();
346 }
347 }
348
349 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
350 : LIR_Op(lir_flattened_array_check, LIR_OprFact::illegalOpr, NULL)
351 , _array(array)
352 , _value(value)
353 , _tmp(tmp)
354 , _stub(stub) {}
355
356
357 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
358 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, NULL)
359 , _array(array)
360 , _tmp(tmp) {}
361
362
363 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
364 LIR_Opr tmp1, LIR_Opr tmp2,
365 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
366 CodeEmitInfo* info, CodeStub* stub)
367 : LIR_Op(lir_substitutability_check, result, info)
368 , _left(left)
369 , _right(right)
370 , _equal_result(equal_result)
371 , _not_equal_result(not_equal_result)
372 , _tmp1(tmp1)
373 , _tmp2(tmp2)
374 , _left_klass(left_klass)
375 , _right_klass(right_klass)
376 , _left_klass_op(left_klass_op)
377 , _right_klass_op(right_klass_op)
378 , _stub(stub) {}
379
380
381 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
382 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
383 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
384 , _src(src)
385 , _src_pos(src_pos)
386 , _dst(dst)
387 , _dst_pos(dst_pos)
388 , _length(length)
389 , _tmp(tmp)
390 , _expected_type(expected_type)
391 , _flags(flags) {
392 _stub = new ArrayCopyStub(this);
393 }
394
395 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
396 : LIR_Op(lir_updatecrc32, res, NULL)
397 , _crc(crc)
398 , _val(val) {
399 }
400
401 //-------------------verify--------------------------
402
403 void LIR_Op1::verify() const {
404 switch(code()) {
405 case lir_move:
406 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
407 break;
408 case lir_null_check:
409 assert(in_opr()->is_register(), "must be");
410 break;
411 case lir_return:
412 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
413 break;
414 default:
415 break;
416 }
417 }
418
419 void LIR_OpRTCall::verify() const {
420 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
421 }
422
423 //-------------------visits--------------------------
424
425 // complete rework of LIR instruction visitor.
426 // The virtual call for each instruction type is replaced by a big
427 // switch that adds the operands for each instruction
428
429 void LIR_OpVisitState::visit(LIR_Op* op) {
430 // copy information from the LIR_Op
431 reset();
432 set_op(op);
433
434 switch (op->code()) {
435
436 // LIR_Op0
437 case lir_fpop_raw: // result and info always invalid
438 case lir_breakpoint: // result and info always invalid
439 case lir_membar: // result and info always invalid
440 case lir_membar_acquire: // result and info always invalid
441 case lir_membar_release: // result and info always invalid
442 case lir_membar_loadload: // result and info always invalid
443 case lir_membar_storestore: // result and info always invalid
444 case lir_membar_loadstore: // result and info always invalid
445 case lir_membar_storeload: // result and info always invalid
446 case lir_check_orig_pc: // result and info always invalid
447 case lir_on_spin_wait:
448 {
449 assert(op->as_Op0() != NULL, "must be");
450 assert(op->_info == NULL, "info not used by this instruction");
451 assert(op->_result->is_illegal(), "not used");
452 break;
453 }
454
455 case lir_nop: // may have info, result always invalid
456 case lir_std_entry: // may have result, info always invalid
457 case lir_osr_entry: // may have result, info always invalid
458 case lir_get_thread: // may have result, info always invalid
459 {
460 assert(op->as_Op0() != NULL, "must be");
461 if (op->_info != NULL) do_info(op->_info);
462 if (op->_result->is_valid()) do_output(op->_result);
463 break;
464 }
465
466
467 // LIR_OpLabel
468 case lir_label: // result and info always invalid
469 {
470 assert(op->as_OpLabel() != NULL, "must be");
471 assert(op->_info == NULL, "info not used by this instruction");
472 assert(op->_result->is_illegal(), "not used");
473 break;
474 }
475
476
477 // LIR_Op1
478 case lir_fxch: // input always valid, result and info always invalid
479 case lir_fld: // input always valid, result and info always invalid
480 case lir_push: // input always valid, result and info always invalid
481 case lir_pop: // input always valid, result and info always invalid
482 case lir_leal: // input and result always valid, info always invalid
483 case lir_monaddr: // input and result always valid, info always invalid
484 case lir_null_check: // input and info always valid, result always invalid
485 case lir_move: // input and result always valid, may have info
486 {
487 assert(op->as_Op1() != NULL, "must be");
488 LIR_Op1* op1 = (LIR_Op1*)op;
489
490 if (op1->_info) do_info(op1->_info);
491 if (op1->_opr->is_valid()) do_input(op1->_opr);
492 if (op1->_result->is_valid()) do_output(op1->_result);
493
494 break;
495 }
496
497 case lir_return:
498 {
499 assert(op->as_OpReturn() != NULL, "must be");
500 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
501
502 if (op_ret->_info) do_info(op_ret->_info);
503 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
504 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
505 if (op_ret->stub() != NULL) do_stub(op_ret->stub());
506
507 break;
508 }
509
510 case lir_safepoint:
511 {
512 assert(op->as_Op1() != NULL, "must be");
513 LIR_Op1* op1 = (LIR_Op1*)op;
514
515 assert(op1->_info != NULL, ""); do_info(op1->_info);
516 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
517 assert(op1->_result->is_illegal(), "safepoint does not produce value");
518
519 break;
520 }
521
522 // LIR_OpConvert;
523 case lir_convert: // input and result always valid, info always invalid
524 {
525 assert(op->as_OpConvert() != NULL, "must be");
526 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
527
528 assert(opConvert->_info == NULL, "must be");
529 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
530 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
531 do_stub(opConvert->_stub);
532
533 break;
534 }
535
536 // LIR_OpBranch;
537 case lir_branch: // may have info, input and result register always invalid
538 case lir_cond_float_branch: // may have info, input and result register always invalid
539 {
540 assert(op->as_OpBranch() != NULL, "must be");
541 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
542
543 assert(opBranch->_tmp1->is_illegal() && opBranch->_tmp2->is_illegal() &&
544 opBranch->_tmp3->is_illegal() && opBranch->_tmp4->is_illegal() &&
545 opBranch->_tmp5->is_illegal(), "not used");
546
547 if (opBranch->_opr1->is_valid()) do_input(opBranch->_opr1);
548 if (opBranch->_opr2->is_valid()) do_input(opBranch->_opr2);
549
550 if (opBranch->_info != NULL) do_info(opBranch->_info);
551 assert(opBranch->_result->is_illegal(), "not used");
552 if (opBranch->_stub != NULL) opBranch->stub()->visit(this);
553
554 break;
555 }
556
557
558 // LIR_OpAllocObj
559 case lir_alloc_object:
560 {
561 assert(op->as_OpAllocObj() != NULL, "must be");
562 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
563
564 if (opAllocObj->_info) do_info(opAllocObj->_info);
565 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
566 do_temp(opAllocObj->_opr);
567 }
568 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
569 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
570 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
571 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
572 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
573 if (opAllocObj->_stub != nullptr) do_stub(opAllocObj->_stub);
574 break;
575 }
576
577
578 // LIR_OpRoundFP;
579 case lir_roundfp: {
580 assert(op->as_OpRoundFP() != NULL, "must be");
581 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
582
583 assert(op->_info == NULL, "info not used by this instruction");
584 assert(opRoundFP->_tmp->is_illegal(), "not used");
585 do_input(opRoundFP->_opr);
586 do_output(opRoundFP->_result);
587
588 break;
589 }
590
591
592 // LIR_Op2
593 case lir_cmp:
594 case lir_cmp_l2i:
595 case lir_ucmp_fd2i:
596 case lir_cmp_fd2i:
597 case lir_add:
598 case lir_sub:
599 case lir_rem:
600 case lir_sqrt:
601 case lir_abs:
602 case lir_neg:
603 case lir_logic_and:
604 case lir_logic_or:
605 case lir_logic_xor:
606 case lir_shl:
607 case lir_shr:
608 case lir_ushr:
609 case lir_xadd:
610 case lir_xchg:
611 case lir_assert:
612 {
613 assert(op->as_Op2() != NULL, "must be");
614 LIR_Op2* op2 = (LIR_Op2*)op;
615 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
616 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
617
618 if (op2->_info) do_info(op2->_info);
619 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
620 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
621 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
622 if (op2->_result->is_valid()) do_output(op2->_result);
623 if (op->code() == lir_xchg || op->code() == lir_xadd) {
624 // on ARM and PPC, return value is loaded first so could
625 // destroy inputs. On other platforms that implement those
626 // (x86, sparc), the extra constrainsts are harmless.
627 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
628 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
629 }
630
631 break;
632 }
633
634 // special handling for cmove: right input operand must not be equal
635 // to the result operand, otherwise the backend fails
636 case lir_cmove:
637 {
638 assert(op->as_Op4() != NULL, "must be");
639 LIR_Op4* op4 = (LIR_Op4*)op;
640
641 assert(op4->_info == NULL && op4->_tmp1->is_illegal() && op4->_tmp2->is_illegal() &&
642 op4->_tmp3->is_illegal() && op4->_tmp4->is_illegal() && op4->_tmp5->is_illegal(), "not used");
643 assert(op4->_opr1->is_valid() && op4->_opr2->is_valid() && op4->_result->is_valid(), "used");
644
645 do_input(op4->_opr1);
646 do_input(op4->_opr2);
647 if (op4->_opr3->is_valid()) do_input(op4->_opr3);
648 if (op4->_opr4->is_valid()) do_input(op4->_opr4);
649 do_temp(op4->_opr2);
650 do_output(op4->_result);
651
652 break;
653 }
654
655 // vspecial handling for strict operations: register input operands
656 // as temp to guarantee that they do not overlap with other
657 // registers
658 case lir_mul:
659 case lir_div:
660 {
661 assert(op->as_Op2() != NULL, "must be");
662 LIR_Op2* op2 = (LIR_Op2*)op;
663
664 assert(op2->_info == NULL, "not used");
665 assert(op2->_opr1->is_valid(), "used");
666 assert(op2->_opr2->is_valid(), "used");
667 assert(op2->_result->is_valid(), "used");
668 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
669 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
670
671 do_input(op2->_opr1); do_temp(op2->_opr1);
672 do_input(op2->_opr2); do_temp(op2->_opr2);
673 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
674 do_output(op2->_result);
675
676 break;
677 }
678
679 case lir_throw: {
680 assert(op->as_Op2() != NULL, "must be");
681 LIR_Op2* op2 = (LIR_Op2*)op;
682
683 if (op2->_info) do_info(op2->_info);
684 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
685 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
686 assert(op2->_result->is_illegal(), "no result");
687 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
688 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
689
690 break;
691 }
692
693 case lir_unwind: {
694 assert(op->as_Op1() != NULL, "must be");
695 LIR_Op1* op1 = (LIR_Op1*)op;
696
697 assert(op1->_info == NULL, "no info");
698 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
699 assert(op1->_result->is_illegal(), "no result");
700
701 break;
702 }
703
704 // LIR_Op3
705 case lir_idiv:
706 case lir_irem: {
707 assert(op->as_Op3() != NULL, "must be");
708 LIR_Op3* op3= (LIR_Op3*)op;
709
710 if (op3->_info) do_info(op3->_info);
711 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
712
713 // second operand is input and temp, so ensure that second operand
714 // and third operand get not the same register
715 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
716 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
717 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
718
719 if (op3->_result->is_valid()) do_output(op3->_result);
720
721 break;
722 }
723
724 case lir_fmad:
725 case lir_fmaf: {
726 assert(op->as_Op3() != NULL, "must be");
727 LIR_Op3* op3= (LIR_Op3*)op;
728 assert(op3->_info == NULL, "no info");
729 do_input(op3->_opr1);
730 do_input(op3->_opr2);
731 do_input(op3->_opr3);
732 do_output(op3->_result);
733 break;
734 }
735
736 // LIR_OpJavaCall
737 case lir_static_call:
738 case lir_optvirtual_call:
739 case lir_icvirtual_call:
740 case lir_dynamic_call: {
741 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
742 assert(opJavaCall != NULL, "must be");
743
744 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
745
746 // only visit register parameters
747 int n = opJavaCall->_arguments->length();
748 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
749 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
750 do_input(*opJavaCall->_arguments->adr_at(i));
751 }
752 }
753
754 if (opJavaCall->_info) do_info(opJavaCall->_info);
755 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
756 opJavaCall->is_method_handle_invoke()) {
757 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
758 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
759 }
760 do_call();
761 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
762
763 break;
764 }
765
766
767 // LIR_OpRTCall
768 case lir_rtcall: {
769 assert(op->as_OpRTCall() != NULL, "must be");
770 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
771
772 // only visit register parameters
773 int n = opRTCall->_arguments->length();
774 for (int i = 0; i < n; i++) {
775 if (!opRTCall->_arguments->at(i)->is_pointer()) {
776 do_input(*opRTCall->_arguments->adr_at(i));
777 }
778 }
779 if (opRTCall->_info) do_info(opRTCall->_info);
780 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
781 do_call();
782 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
783
784 break;
785 }
786
787
788 // LIR_OpArrayCopy
789 case lir_arraycopy: {
790 assert(op->as_OpArrayCopy() != NULL, "must be");
791 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
792
793 assert(opArrayCopy->_result->is_illegal(), "unused");
794 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
795 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
796 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
797 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
798 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
799 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
800 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
801
802 // the implementation of arraycopy always has a call into the runtime
803 do_call();
804
805 break;
806 }
807
808
809 // LIR_OpUpdateCRC32
810 case lir_updatecrc32: {
811 assert(op->as_OpUpdateCRC32() != NULL, "must be");
812 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
813
814 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
815 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
816 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
817 assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
818
819 break;
820 }
821
822
823 // LIR_OpLock
824 case lir_lock:
825 case lir_unlock: {
826 assert(op->as_OpLock() != NULL, "must be");
827 LIR_OpLock* opLock = (LIR_OpLock*)op;
828
829 if (opLock->_info) do_info(opLock->_info);
830
831 // TODO: check if these operands really have to be temp
832 // (or if input is sufficient). This may have influence on the oop map!
833 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
834 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
835 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
836
837 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
838 assert(opLock->_result->is_illegal(), "unused");
839
840 do_stub(opLock->_stub);
841 do_stub(opLock->_throw_imse_stub);
842
843 break;
844 }
845
846
847 // LIR_OpDelay
848 case lir_delay_slot: {
849 assert(op->as_OpDelay() != NULL, "must be");
850 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
851
852 visit(opDelay->delay_op());
853 break;
854 }
855
856 // LIR_OpTypeCheck
857 case lir_instanceof:
858 case lir_checkcast:
859 case lir_store_check: {
860 assert(op->as_OpTypeCheck() != NULL, "must be");
861 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
862
863 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
864 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
865 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
866 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
867 do_temp(opTypeCheck->_object);
868 }
869 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
870 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
871 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
872 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
873 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
874 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
875 break;
876 }
877
878 // LIR_OpFlattenedArrayCheck
879 case lir_flattened_array_check: {
880 assert(op->as_OpFlattenedArrayCheck() != NULL, "must be");
881 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
882
883 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
884 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
885 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
886
887 do_stub(opFlattenedArrayCheck->_stub);
888
889 break;
890 }
891
892 // LIR_OpNullFreeArrayCheck
893 case lir_null_free_array_check: {
894 assert(op->as_OpNullFreeArrayCheck() != NULL, "must be");
895 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
896
897 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
898 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
899 break;
900 }
901
902 // LIR_OpSubstitutabilityCheck
903 case lir_substitutability_check: {
904 assert(op->as_OpSubstitutabilityCheck() != NULL, "must be");
905 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
906 do_input(opSubstitutabilityCheck->_left);
907 do_temp (opSubstitutabilityCheck->_left);
908 do_input(opSubstitutabilityCheck->_right);
909 do_temp (opSubstitutabilityCheck->_right);
910 do_input(opSubstitutabilityCheck->_equal_result);
911 do_temp (opSubstitutabilityCheck->_equal_result);
912 do_input(opSubstitutabilityCheck->_not_equal_result);
913 do_temp (opSubstitutabilityCheck->_not_equal_result);
914 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
915 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
916 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
917 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
918 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
919
920 do_info(opSubstitutabilityCheck->_info);
921 do_stub(opSubstitutabilityCheck->_stub);
922 break;
923 }
924
925 // LIR_OpCompareAndSwap
926 case lir_cas_long:
927 case lir_cas_obj:
928 case lir_cas_int: {
929 assert(op->as_OpCompareAndSwap() != NULL, "must be");
930 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
931
932 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
933 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
934 do_temp(opCmpAndSwap->_addr);
935 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
936 do_temp(opCmpAndSwap->_cmp_value);
937 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
938 do_temp(opCmpAndSwap->_new_value);
939 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
940 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
941 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
942
943 break;
944 }
945
946
947 // LIR_OpAllocArray;
948 case lir_alloc_array: {
949 assert(op->as_OpAllocArray() != NULL, "must be");
950 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
951
952 if (opAllocArray->_info) do_info(opAllocArray->_info);
953 if (opAllocArray->_klass->is_valid()) { do_input(opAllocArray->_klass);
954 do_temp(opAllocArray->_klass);
955 }
956 if (opAllocArray->_len->is_valid()) { do_input(opAllocArray->_len);
957 do_temp(opAllocArray->_len);
958 }
959 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
960 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
961 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
962 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
963 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
964 if (opAllocArray->_stub != nullptr) do_stub(opAllocArray->_stub);
965 break;
966 }
967
968 // LIR_OpLoadKlass
969 case lir_load_klass:
970 {
971 LIR_OpLoadKlass* opLoadKlass = op->as_OpLoadKlass();
972 assert(opLoadKlass != NULL, "must be");
973
974 do_input(opLoadKlass->_obj);
975 do_output(opLoadKlass->_result);
976 if (opLoadKlass->_info) do_info(opLoadKlass->_info);
977 break;
978 }
979
980
981 // LIR_OpProfileCall:
982 case lir_profile_call: {
983 assert(op->as_OpProfileCall() != NULL, "must be");
984 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
985
986 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
987 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
988 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
989 break;
990 }
991
992 // LIR_OpProfileType:
993 case lir_profile_type: {
994 assert(op->as_OpProfileType() != NULL, "must be");
995 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
996
997 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
998 do_input(opProfileType->_obj);
999 do_temp(opProfileType->_tmp);
1000 break;
1001 }
1002
1003 // LIR_OpProfileInlineType:
1004 case lir_profile_inline_type: {
1005 assert(op->as_OpProfileInlineType() != NULL, "must be");
1006 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
1007
1008 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1009 do_input(opProfileInlineType->_obj);
1010 do_temp(opProfileInlineType->_tmp);
1011 break;
1012 }
1013 default:
1014 op->visit(this);
1015 }
1016 }
1017
1018 void LIR_Op::visit(LIR_OpVisitState* state) {
1019 ShouldNotReachHere();
1020 }
1021
1022 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1023 if (stub != NULL) {
1024 stub->visit(this);
1025 }
1026 }
1027
1028 XHandlers* LIR_OpVisitState::all_xhandler() {
1029 XHandlers* result = NULL;
1030
1031 int i;
1032 for (i = 0; i < info_count(); i++) {
1033 if (info_at(i)->exception_handlers() != NULL) {
1034 result = info_at(i)->exception_handlers();
1035 break;
1036 }
1037 }
1038
1039 #ifdef ASSERT
1040 for (i = 0; i < info_count(); i++) {
1041 assert(info_at(i)->exception_handlers() == NULL ||
1042 info_at(i)->exception_handlers() == result,
1043 "only one xhandler list allowed per LIR-operation");
1044 }
1045 #endif
1046
1047 if (result != NULL) {
1048 return result;
1049 } else {
1050 return new XHandlers();
1051 }
1052
1053 return result;
1054 }
1055
1056
1057 #ifdef ASSERT
1058 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1059 visit(op);
1060
1061 return opr_count(inputMode) == 0 &&
1062 opr_count(outputMode) == 0 &&
1063 opr_count(tempMode) == 0 &&
1064 info_count() == 0 &&
1065 !has_call() &&
1066 !has_slow_case();
1067 }
1068 #endif
1069
1070 // LIR_OpReturn
1071 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1072 LIR_Op1(lir_return, opr, (CodeEmitInfo*)NULL /* info */),
1073 _stub(NULL) {
1074 if (VM_Version::supports_stack_watermark_barrier()) {
1075 _stub = new C1SafepointPollStub();
1076 }
1077 }
1078
1079 //---------------------------------------------------
1080
1081
1082 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1083 masm->emit_call(this);
1084 }
1085
1086 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1087 ciType* return_type = method()->return_type();
1088 if (InlineTypeReturnedAsFields) {
1089 if (return_type->is_inlinetype()) {
1090 ciInlineKlass* vk = return_type->as_inline_klass();
1091 if (vk->can_be_returned_as_fields()) {
1092 if (vk_ret != NULL) {
1093 *vk_ret = vk;
1094 }
1095 return true;
1096 }
1097 } else if (return_type->is_instance_klass() &&
1098 (method()->is_method_handle_intrinsic() ||
1099 (!return_type->is_loaded() && !method()->holder()->is_loaded()))) {
1100 // An inline type might be returned from the call but we don't know its type.
1101 // This can happen with method handle intrinsics or when both the return type
1102 // and the method holder are unloaded (and therefore the preload logic did not
1103 // get a chance to load the return type). If an inline type is returned, we
1104 // either get an oop to a buffer and nothing needs to be done or one of the
1105 // values being returned is the klass of the inline type (RAX on x64, with LSB
1106 // set to 1) and we need to allocate an inline type instance of that type and
1107 // initialize it with other values being returned (in other registers).
1108 return true;
1109 }
1110 }
1111 return false;
1112 }
1113
1114 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1115 masm->emit_rtcall(this);
1116 }
1117
1118 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1119 masm->emit_opLabel(this);
1120 }
1121
1122 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1123 masm->emit_arraycopy(this);
1124 masm->append_code_stub(stub());
1125 }
1126
1127 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1128 masm->emit_updatecrc32(this);
1129 }
1130
1131 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1132 masm->emit_op0(this);
1133 }
1134
1135 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1136 masm->emit_op1(this);
1137 }
1138
1139 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1140 masm->emit_alloc_obj(this);
1141 masm->append_code_stub(stub());
1142 }
1143
1144 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1145 masm->emit_opBranch(this);
1146 if (stub()) {
1147 masm->append_code_stub(stub());
1148 }
1149 }
1150
1151 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1152 masm->emit_opConvert(this);
1153 if (stub() != NULL) {
1154 masm->append_code_stub(stub());
1155 }
1156 }
1157
1158 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1159 masm->emit_op2(this);
1160 }
1161
1162 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1163 masm->emit_alloc_array(this);
1164 masm->append_code_stub(stub());
1165 }
1166
1167 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1168 masm->emit_opTypeCheck(this);
1169 if (stub()) {
1170 masm->append_code_stub(stub());
1171 }
1172 }
1173
1174 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1175 masm->emit_opFlattenedArrayCheck(this);
1176 if (stub() != NULL) {
1177 masm->append_code_stub(stub());
1178 }
1179 }
1180
1181 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1182 masm->emit_opNullFreeArrayCheck(this);
1183 }
1184
1185 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1186 masm->emit_opSubstitutabilityCheck(this);
1187 if (stub() != NULL) {
1188 masm->append_code_stub(stub());
1189 }
1190 }
1191
1192 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1193 masm->emit_compare_and_swap(this);
1194 }
1195
1196 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1197 masm->emit_op3(this);
1198 }
1199
1200 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1201 masm->emit_op4(this);
1202 }
1203
1204 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1205 masm->emit_lock(this);
1206 if (stub()) {
1207 masm->append_code_stub(stub());
1208 }
1209 if (throw_imse_stub()) {
1210 masm->append_code_stub(throw_imse_stub());
1211 }
1212 }
1213
1214 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1215 masm->emit_load_klass(this);
1216 }
1217
1218 #ifdef ASSERT
1219 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1220 masm->emit_assert(this);
1221 }
1222 #endif
1223
1224 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1225 masm->emit_delay(this);
1226 }
1227
1228 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1229 masm->emit_profile_call(this);
1230 }
1231
1232 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1233 masm->emit_profile_type(this);
1234 }
1235
1236 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1237 masm->emit_profile_inline_type(this);
1238 }
1239
1240 // LIR_List
1241 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1242 : _operations(8)
1243 , _compilation(compilation)
1244 #ifndef PRODUCT
1245 , _block(block)
1246 #endif
1247 #ifdef ASSERT
1248 , _file(NULL)
1249 , _line(0)
1250 #endif
1251 #ifdef RISCV
1252 , _cmp_opr1(LIR_OprFact::illegalOpr)
1253 , _cmp_opr2(LIR_OprFact::illegalOpr)
1254 #endif
1255 { }
1256
1257
1258 #ifdef ASSERT
1259 void LIR_List::set_file_and_line(const char * file, int line) {
1260 const char * f = strrchr(file, '/');
1261 if (f == NULL) f = strrchr(file, '\\');
1262 if (f == NULL) {
1263 f = file;
1264 } else {
1265 f++;
1266 }
1267 _file = f;
1268 _line = line;
1269 }
1270 #endif
1271
1272 #ifdef RISCV
1273 void LIR_List::set_cmp_oprs(LIR_Op* op) {
1274 switch (op->code()) {
1275 case lir_cmp:
1276 _cmp_opr1 = op->as_Op2()->in_opr1();
1277 _cmp_opr2 = op->as_Op2()->in_opr2();
1278 break;
1279 case lir_branch: // fall through
1280 case lir_cond_float_branch:
1281 assert(op->as_OpBranch()->cond() == lir_cond_always ||
1282 (_cmp_opr1 != LIR_OprFact::illegalOpr && _cmp_opr2 != LIR_OprFact::illegalOpr),
1283 "conditional branches must have legal operands");
1284 if (op->as_OpBranch()->cond() != lir_cond_always) {
1285 op->as_Op2()->set_in_opr1(_cmp_opr1);
1286 op->as_Op2()->set_in_opr2(_cmp_opr2);
1287 }
1288 break;
1289 case lir_cmove:
1290 op->as_Op4()->set_in_opr3(_cmp_opr1);
1291 op->as_Op4()->set_in_opr4(_cmp_opr2);
1292 break;
1293 #if INCLUDE_ZGC
1294 case lir_zloadbarrier_test:
1295 _cmp_opr1 = FrameMap::as_opr(t1);
1296 _cmp_opr2 = LIR_OprFact::intConst(0);
1297 break;
1298 #endif
1299 default:
1300 break;
1301 }
1302 }
1303 #endif
1304
1305 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1306 assert(this == buffer->lir_list(), "wrong lir list");
1307 const int n = _operations.length();
1308
1309 if (buffer->number_of_ops() > 0) {
1310 // increase size of instructions list
1311 _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1312 // insert ops from buffer into instructions list
1313 int op_index = buffer->number_of_ops() - 1;
1314 int ip_index = buffer->number_of_insertion_points() - 1;
1315 int from_index = n - 1;
1316 int to_index = _operations.length() - 1;
1317 for (; ip_index >= 0; ip_index --) {
1318 int index = buffer->index_at(ip_index);
1319 // make room after insertion point
1320 while (index < from_index) {
1321 _operations.at_put(to_index --, _operations.at(from_index --));
1322 }
1323 // insert ops from buffer
1324 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1325 _operations.at_put(to_index --, buffer->op_at(op_index --));
1326 }
1327 }
1328 }
1329
1330 buffer->finish();
1331 }
1332
1333
1334 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1335 assert(reg->type() == T_OBJECT, "bad reg");
1336 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1337 }
1338
1339 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1340 assert(reg->type() == T_METADATA, "bad reg");
1341 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1342 }
1343
1344 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1345 append(new LIR_Op1(
1346 lir_move,
1347 LIR_OprFact::address(addr),
1348 src,
1349 addr->type(),
1350 patch_code,
1351 info));
1352 }
1353
1354
1355 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1356 append(new LIR_Op1(
1357 lir_move,
1358 LIR_OprFact::address(address),
1359 dst,
1360 address->type(),
1361 patch_code,
1362 info, lir_move_volatile));
1363 }
1364
1365 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1366 append(new LIR_Op1(
1367 lir_move,
1368 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1369 dst,
1370 type,
1371 patch_code,
1372 info, lir_move_volatile));
1373 }
1374
1375
1376 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1377 append(new LIR_Op1(
1378 lir_move,
1379 LIR_OprFact::intConst(v),
1380 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1381 type,
1382 patch_code,
1383 info));
1384 }
1385
1386
1387 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1388 append(new LIR_Op1(
1389 lir_move,
1390 LIR_OprFact::oopConst(o),
1391 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1392 type,
1393 patch_code,
1394 info));
1395 }
1396
1397
1398 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1399 append(new LIR_Op1(
1400 lir_move,
1401 src,
1402 LIR_OprFact::address(addr),
1403 addr->type(),
1404 patch_code,
1405 info));
1406 }
1407
1408
1409 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1410 append(new LIR_Op1(
1411 lir_move,
1412 src,
1413 LIR_OprFact::address(addr),
1414 addr->type(),
1415 patch_code,
1416 info,
1417 lir_move_volatile));
1418 }
1419
1420 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1421 append(new LIR_Op1(
1422 lir_move,
1423 src,
1424 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1425 type,
1426 patch_code,
1427 info, lir_move_volatile));
1428 }
1429
1430
1431 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1432 append(new LIR_Op3(
1433 lir_idiv,
1434 left,
1435 right,
1436 tmp,
1437 res,
1438 info));
1439 }
1440
1441
1442 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1443 append(new LIR_Op3(
1444 lir_idiv,
1445 left,
1446 LIR_OprFact::intConst(right),
1447 tmp,
1448 res,
1449 info));
1450 }
1451
1452
1453 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1454 append(new LIR_Op3(
1455 lir_irem,
1456 left,
1457 right,
1458 tmp,
1459 res,
1460 info));
1461 }
1462
1463
1464 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1465 append(new LIR_Op3(
1466 lir_irem,
1467 left,
1468 LIR_OprFact::intConst(right),
1469 tmp,
1470 res,
1471 info));
1472 }
1473
1474
1475 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1476 append(new LIR_Op2(
1477 lir_cmp,
1478 condition,
1479 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1480 LIR_OprFact::intConst(c),
1481 info));
1482 }
1483
1484
1485 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1486 append(new LIR_Op2(
1487 lir_cmp,
1488 condition,
1489 reg,
1490 LIR_OprFact::address(addr),
1491 info));
1492 }
1493
1494 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1495 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1496 append(new LIR_OpAllocObj(
1497 klass,
1498 dst,
1499 t1,
1500 t2,
1501 t3,
1502 t4,
1503 header_size,
1504 object_size,
1505 init_check,
1506 stub));
1507 }
1508
1509 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) {
1510 append(new LIR_OpAllocArray(
1511 klass,
1512 len,
1513 dst,
1514 t1,
1515 t2,
1516 t3,
1517 t4,
1518 type,
1519 stub));
1520 }
1521
1522 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1523 append(new LIR_Op2(
1524 lir_shl,
1525 value,
1526 count,
1527 dst,
1528 tmp));
1529 }
1530
1531 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1532 append(new LIR_Op2(
1533 lir_shr,
1534 value,
1535 count,
1536 dst,
1537 tmp));
1538 }
1539
1540
1541 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1542 append(new LIR_Op2(
1543 lir_ushr,
1544 value,
1545 count,
1546 dst,
1547 tmp));
1548 }
1549
1550 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1551 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1552 left,
1553 right,
1554 dst));
1555 }
1556
1557 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_imse_stub) {
1558 append(new LIR_OpLock(
1559 lir_lock,
1560 hdr,
1561 obj,
1562 lock,
1563 scratch,
1564 stub,
1565 info,
1566 throw_imse_stub));
1567 }
1568
1569 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1570 append(new LIR_OpLock(
1571 lir_unlock,
1572 hdr,
1573 obj,
1574 lock,
1575 scratch,
1576 stub,
1577 NULL));
1578 }
1579
1580
1581 void check_LIR() {
1582 // cannot do the proper checking as PRODUCT and other modes return different results
1583 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1584 }
1585
1586
1587
1588 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1589 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1590 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1591 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1592 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1593 // on the object.
1594 bool need_null_check = !is_null_free;
1595 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1596 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1597 need_null_check);
1598 if (profiled_method != NULL) {
1599 c->set_profiled_method(profiled_method);
1600 c->set_profiled_bci(profiled_bci);
1601 c->set_should_profile(true);
1602 }
1603 append(c);
1604 }
1605
1606 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) {
1607 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1608 if (profiled_method != NULL) {
1609 c->set_profiled_method(profiled_method);
1610 c->set_profiled_bci(profiled_bci);
1611 c->set_should_profile(true);
1612 }
1613 append(c);
1614 }
1615
1616
1617 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1618 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1619 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1620 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1621 if (profiled_method != NULL) {
1622 c->set_profiled_method(profiled_method);
1623 c->set_profiled_bci(profiled_bci);
1624 c->set_should_profile(true);
1625 }
1626 append(c);
1627 }
1628
1629 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1630 if (deoptimize_on_null) {
1631 // Emit an explicit null check and deoptimize if opr is null
1632 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1633 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1634 branch(lir_cond_equal, deopt);
1635 } else {
1636 // Emit an implicit null check
1637 append(new LIR_Op1(lir_null_check, opr, info));
1638 }
1639 }
1640
1641 void LIR_List::check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1642 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1643 append(c);
1644 }
1645
1646 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1647 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1648 append(c);
1649 }
1650
1651 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1652 LIR_Opr tmp1, LIR_Opr tmp2,
1653 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1654 CodeEmitInfo* info, CodeStub* stub) {
1655 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1656 tmp1, tmp2,
1657 left_klass, right_klass, left_klass_op, right_klass_op,
1658 info, stub);
1659 append(c);
1660 }
1661
1662 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1663 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1664 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1665 }
1666
1667 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1668 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1669 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1670 }
1671
1672 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1673 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1674 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1675 }
1676
1677
1678 #ifdef PRODUCT
1679
1680 void print_LIR(BlockList* blocks) {
1681 }
1682
1683 #else
1684 // LIR_Opr
1685 void LIR_Opr::print() const {
1686 print(tty);
1687 }
1688
1689 void LIR_Opr::print(outputStream* out) const {
1690 if (is_illegal()) {
1691 return;
1692 }
1693
1694 out->print("[");
1695 if (is_pointer()) {
1696 pointer()->print_value_on(out);
1697 } else if (is_single_stack()) {
1698 out->print("stack:%d", single_stack_ix());
1699 } else if (is_double_stack()) {
1700 out->print("dbl_stack:%d",double_stack_ix());
1701 } else if (is_virtual()) {
1702 out->print("R%d", vreg_number());
1703 } else if (is_single_cpu()) {
1704 out->print("%s", as_register()->name());
1705 } else if (is_double_cpu()) {
1706 out->print("%s", as_register_hi()->name());
1707 out->print("%s", as_register_lo()->name());
1708 #if defined(X86)
1709 } else if (is_single_xmm()) {
1710 out->print("%s", as_xmm_float_reg()->name());
1711 } else if (is_double_xmm()) {
1712 out->print("%s", as_xmm_double_reg()->name());
1713 } else if (is_single_fpu()) {
1714 out->print("fpu%d", fpu_regnr());
1715 } else if (is_double_fpu()) {
1716 out->print("fpu%d", fpu_regnrLo());
1717 #elif defined(AARCH64)
1718 } else if (is_single_fpu()) {
1719 out->print("fpu%d", fpu_regnr());
1720 } else if (is_double_fpu()) {
1721 out->print("fpu%d", fpu_regnrLo());
1722 #elif defined(ARM)
1723 } else if (is_single_fpu()) {
1724 out->print("s%d", fpu_regnr());
1725 } else if (is_double_fpu()) {
1726 out->print("d%d", fpu_regnrLo() >> 1);
1727 #else
1728 } else if (is_single_fpu()) {
1729 out->print("%s", as_float_reg()->name());
1730 } else if (is_double_fpu()) {
1731 out->print("%s", as_double_reg()->name());
1732 #endif
1733
1734 } else if (is_illegal()) {
1735 out->print("-");
1736 } else {
1737 out->print("Unknown Operand");
1738 }
1739 if (!is_illegal()) {
1740 out->print("|%c", type_char());
1741 }
1742 if (is_register() && is_last_use()) {
1743 out->print("(last_use)");
1744 }
1745 out->print("]");
1746 }
1747
1748
1749 // LIR_Address
1750 void LIR_Const::print_value_on(outputStream* out) const {
1751 switch (type()) {
1752 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1753 case T_INT: out->print("int:%d", as_jint()); break;
1754 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1755 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1756 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1757 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1758 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1759 default: out->print("%3d:" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1760 }
1761 }
1762
1763 // LIR_Address
1764 void LIR_Address::print_value_on(outputStream* out) const {
1765 out->print("Base:"); _base->print(out);
1766 if (!_index->is_illegal()) {
1767 out->print(" Index:"); _index->print(out);
1768 switch (scale()) {
1769 case times_1: break;
1770 case times_2: out->print(" * 2"); break;
1771 case times_4: out->print(" * 4"); break;
1772 case times_8: out->print(" * 8"); break;
1773 }
1774 }
1775 out->print(" Disp: " INTX_FORMAT, _disp);
1776 }
1777
1778 // debug output of block header without InstructionPrinter
1779 // (because phi functions are not necessary for LIR)
1780 static void print_block(BlockBegin* x) {
1781 // print block id
1782 BlockEnd* end = x->end();
1783 tty->print("B%d ", x->block_id());
1784
1785 // print flags
1786 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1787 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1788 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1789 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1790 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1791 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1792 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1793
1794 // print block bci range
1795 tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1796
1797 // print predecessors and successors
1798 if (x->number_of_preds() > 0) {
1799 tty->print("preds: ");
1800 for (int i = 0; i < x->number_of_preds(); i ++) {
1801 tty->print("B%d ", x->pred_at(i)->block_id());
1802 }
1803 }
1804
1805 if (end != NULL && x->number_of_sux() > 0) {
1806 tty->print("sux: ");
1807 for (int i = 0; i < x->number_of_sux(); i ++) {
1808 tty->print("B%d ", x->sux_at(i)->block_id());
1809 }
1810 }
1811
1812 // print exception handlers
1813 if (x->number_of_exception_handlers() > 0) {
1814 tty->print("xhandler: ");
1815 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1816 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1817 }
1818 }
1819
1820 tty->cr();
1821 }
1822
1823 void print_LIR(BlockList* blocks) {
1824 tty->print_cr("LIR:");
1825 int i;
1826 for (i = 0; i < blocks->length(); i++) {
1827 BlockBegin* bb = blocks->at(i);
1828 print_block(bb);
1829 tty->print("__id_Instruction___________________________________________"); tty->cr();
1830 bb->lir()->print_instructions();
1831 }
1832 }
1833
1834 void LIR_List::print_instructions() {
1835 for (int i = 0; i < _operations.length(); i++) {
1836 _operations.at(i)->print(); tty->cr();
1837 }
1838 tty->cr();
1839 }
1840
1841 // LIR_Ops printing routines
1842 // LIR_Op
1843 void LIR_Op::print_on(outputStream* out) const {
1844 if (id() != -1 || PrintCFGToFile) {
1845 out->print("%4d ", id());
1846 } else {
1847 out->print(" ");
1848 }
1849 out->print("%s ", name());
1850 print_instr(out);
1851 if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1852 #ifdef ASSERT
1853 if (Verbose && _file != NULL) {
1854 out->print(" (%s:%d)", _file, _line);
1855 }
1856 #endif
1857 }
1858
1859 const char * LIR_Op::name() const {
1860 const char* s = NULL;
1861 switch(code()) {
1862 // LIR_Op0
1863 case lir_membar: s = "membar"; break;
1864 case lir_membar_acquire: s = "membar_acquire"; break;
1865 case lir_membar_release: s = "membar_release"; break;
1866 case lir_membar_loadload: s = "membar_loadload"; break;
1867 case lir_membar_storestore: s = "membar_storestore"; break;
1868 case lir_membar_loadstore: s = "membar_loadstore"; break;
1869 case lir_membar_storeload: s = "membar_storeload"; break;
1870 case lir_label: s = "label"; break;
1871 case lir_nop: s = "nop"; break;
1872 case lir_on_spin_wait: s = "on_spin_wait"; break;
1873 case lir_std_entry: s = "std_entry"; break;
1874 case lir_osr_entry: s = "osr_entry"; break;
1875 case lir_fpop_raw: s = "fpop_raw"; break;
1876 case lir_breakpoint: s = "breakpoint"; break;
1877 case lir_get_thread: s = "get_thread"; break;
1878 case lir_check_orig_pc: s = "check_orig_pc"; break;
1879 // LIR_Op1
1880 case lir_fxch: s = "fxch"; break;
1881 case lir_fld: s = "fld"; break;
1882 case lir_push: s = "push"; break;
1883 case lir_pop: s = "pop"; break;
1884 case lir_null_check: s = "null_check"; break;
1885 case lir_return: s = "return"; break;
1886 case lir_safepoint: s = "safepoint"; break;
1887 case lir_leal: s = "leal"; break;
1888 case lir_branch: s = "branch"; break;
1889 case lir_cond_float_branch: s = "flt_cond_br"; break;
1890 case lir_move: s = "move"; break;
1891 case lir_roundfp: s = "roundfp"; break;
1892 case lir_rtcall: s = "rtcall"; break;
1893 case lir_throw: s = "throw"; break;
1894 case lir_unwind: s = "unwind"; break;
1895 case lir_convert: s = "convert"; break;
1896 case lir_alloc_object: s = "alloc_obj"; break;
1897 case lir_monaddr: s = "mon_addr"; break;
1898 // LIR_Op2
1899 case lir_cmp: s = "cmp"; break;
1900 case lir_cmp_l2i: s = "cmp_l2i"; break;
1901 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1902 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1903 case lir_add: s = "add"; break;
1904 case lir_sub: s = "sub"; break;
1905 case lir_mul: s = "mul"; break;
1906 case lir_div: s = "div"; break;
1907 case lir_rem: s = "rem"; break;
1908 case lir_abs: s = "abs"; break;
1909 case lir_neg: s = "neg"; break;
1910 case lir_sqrt: s = "sqrt"; break;
1911 case lir_logic_and: s = "logic_and"; break;
1912 case lir_logic_or: s = "logic_or"; break;
1913 case lir_logic_xor: s = "logic_xor"; break;
1914 case lir_shl: s = "shift_left"; break;
1915 case lir_shr: s = "shift_right"; break;
1916 case lir_ushr: s = "ushift_right"; break;
1917 case lir_alloc_array: s = "alloc_array"; break;
1918 case lir_xadd: s = "xadd"; break;
1919 case lir_xchg: s = "xchg"; break;
1920 // LIR_Op3
1921 case lir_idiv: s = "idiv"; break;
1922 case lir_irem: s = "irem"; break;
1923 case lir_fmad: s = "fmad"; break;
1924 case lir_fmaf: s = "fmaf"; break;
1925 // LIR_Op4
1926 case lir_cmove: s = "cmove"; break;
1927 // LIR_OpJavaCall
1928 case lir_static_call: s = "static"; break;
1929 case lir_optvirtual_call: s = "optvirtual"; break;
1930 case lir_icvirtual_call: s = "icvirtual"; break;
1931 case lir_dynamic_call: s = "dynamic"; break;
1932 // LIR_OpArrayCopy
1933 case lir_arraycopy: s = "arraycopy"; break;
1934 // LIR_OpUpdateCRC32
1935 case lir_updatecrc32: s = "updatecrc32"; break;
1936 // LIR_OpLock
1937 case lir_lock: s = "lock"; break;
1938 case lir_unlock: s = "unlock"; break;
1939 // LIR_OpDelay
1940 case lir_delay_slot: s = "delay"; break;
1941 // LIR_OpTypeCheck
1942 case lir_instanceof: s = "instanceof"; break;
1943 case lir_checkcast: s = "checkcast"; break;
1944 case lir_store_check: s = "store_check"; break;
1945 // LIR_OpFlattenedArrayCheck
1946 case lir_flattened_array_check: s = "flattened_array_check"; break;
1947 // LIR_OpNullFreeArrayCheck
1948 case lir_null_free_array_check: s = "null_free_array_check"; break;
1949 // LIR_OpSubstitutabilityCheck
1950 case lir_substitutability_check: s = "substitutability_check"; break;
1951 // LIR_OpCompareAndSwap
1952 case lir_cas_long: s = "cas_long"; break;
1953 case lir_cas_obj: s = "cas_obj"; break;
1954 case lir_cas_int: s = "cas_int"; break;
1955 // LIR_OpProfileCall
1956 case lir_profile_call: s = "profile_call"; break;
1957 // LIR_OpProfileType
1958 case lir_profile_type: s = "profile_type"; break;
1959 // LIR_OpProfileInlineType
1960 case lir_profile_inline_type: s = "profile_inline_type"; break;
1961 // LIR_OpAssert
1962 #ifdef ASSERT
1963 case lir_assert: s = "assert"; break;
1964 #endif
1965 case lir_none: ShouldNotReachHere();break;
1966 default: s = "illegal_op"; break;
1967 }
1968 return s;
1969 }
1970
1971 // LIR_OpJavaCall
1972 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1973 out->print("call: ");
1974 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1975 if (receiver()->is_valid()) {
1976 out->print(" [recv: "); receiver()->print(out); out->print("]");
1977 }
1978 if (result_opr()->is_valid()) {
1979 out->print(" [result: "); result_opr()->print(out); out->print("]");
1980 }
1981 }
1982
1983 // LIR_OpLabel
1984 void LIR_OpLabel::print_instr(outputStream* out) const {
1985 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1986 }
1987
1988 // LIR_OpArrayCopy
1989 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1990 src()->print(out); out->print(" ");
1991 src_pos()->print(out); out->print(" ");
1992 dst()->print(out); out->print(" ");
1993 dst_pos()->print(out); out->print(" ");
1994 length()->print(out); out->print(" ");
1995 tmp()->print(out); out->print(" ");
1996 }
1997
1998 // LIR_OpUpdateCRC32
1999 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
2000 crc()->print(out); out->print(" ");
2001 val()->print(out); out->print(" ");
2002 result_opr()->print(out); out->print(" ");
2003 }
2004
2005 // LIR_OpCompareAndSwap
2006 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
2007 addr()->print(out); out->print(" ");
2008 cmp_value()->print(out); out->print(" ");
2009 new_value()->print(out); out->print(" ");
2010 tmp1()->print(out); out->print(" ");
2011 tmp2()->print(out); out->print(" ");
2012
2013 }
2014
2015 // LIR_Op0
2016 void LIR_Op0::print_instr(outputStream* out) const {
2017 result_opr()->print(out);
2018 }
2019
2020 // LIR_Op1
2021 const char * LIR_Op1::name() const {
2022 if (code() == lir_move) {
2023 switch (move_kind()) {
2024 case lir_move_normal:
2025 return "move";
2026 case lir_move_volatile:
2027 return "volatile_move";
2028 case lir_move_wide:
2029 return "wide_move";
2030 default:
2031 ShouldNotReachHere();
2032 return "illegal_op";
2033 }
2034 } else {
2035 return LIR_Op::name();
2036 }
2037 }
2038
2039
2040 void LIR_Op1::print_instr(outputStream* out) const {
2041 _opr->print(out); out->print(" ");
2042 result_opr()->print(out); out->print(" ");
2043 print_patch_code(out, patch_code());
2044 }
2045
2046
2047 // LIR_Op1
2048 void LIR_OpRTCall::print_instr(outputStream* out) const {
2049 intx a = (intx)addr();
2050 out->print("%s", Runtime1::name_for_address(addr()));
2051 out->print(" ");
2052 tmp()->print(out);
2053 }
2054
2055 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2056 switch(code) {
2057 case lir_patch_none: break;
2058 case lir_patch_low: out->print("[patch_low]"); break;
2059 case lir_patch_high: out->print("[patch_high]"); break;
2060 case lir_patch_normal: out->print("[patch_normal]"); break;
2061 default: ShouldNotReachHere();
2062 }
2063 }
2064
2065 // LIR_OpBranch
2066 void LIR_OpBranch::print_instr(outputStream* out) const {
2067 print_condition(out, cond()); out->print(" ");
2068 in_opr1()->print(out); out->print(" ");
2069 in_opr2()->print(out); out->print(" ");
2070 if (block() != NULL) {
2071 out->print("[B%d] ", block()->block_id());
2072 } else if (stub() != NULL) {
2073 out->print("[");
2074 stub()->print_name(out);
2075 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2076 if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2077 } else {
2078 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2079 }
2080 if (ublock() != NULL) {
2081 out->print("unordered: [B%d] ", ublock()->block_id());
2082 }
2083 }
2084
2085 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2086 switch(cond) {
2087 case lir_cond_equal: out->print("[EQ]"); break;
2088 case lir_cond_notEqual: out->print("[NE]"); break;
2089 case lir_cond_less: out->print("[LT]"); break;
2090 case lir_cond_lessEqual: out->print("[LE]"); break;
2091 case lir_cond_greaterEqual: out->print("[GE]"); break;
2092 case lir_cond_greater: out->print("[GT]"); break;
2093 case lir_cond_belowEqual: out->print("[BE]"); break;
2094 case lir_cond_aboveEqual: out->print("[AE]"); break;
2095 case lir_cond_always: out->print("[AL]"); break;
2096 default: out->print("[%d]",cond); break;
2097 }
2098 }
2099
2100 // LIR_OpConvert
2101 void LIR_OpConvert::print_instr(outputStream* out) const {
2102 print_bytecode(out, bytecode());
2103 in_opr()->print(out); out->print(" ");
2104 result_opr()->print(out); out->print(" ");
2105 }
2106
2107 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2108 switch(code) {
2109 case Bytecodes::_d2f: out->print("[d2f] "); break;
2110 case Bytecodes::_d2i: out->print("[d2i] "); break;
2111 case Bytecodes::_d2l: out->print("[d2l] "); break;
2112 case Bytecodes::_f2d: out->print("[f2d] "); break;
2113 case Bytecodes::_f2i: out->print("[f2i] "); break;
2114 case Bytecodes::_f2l: out->print("[f2l] "); break;
2115 case Bytecodes::_i2b: out->print("[i2b] "); break;
2116 case Bytecodes::_i2c: out->print("[i2c] "); break;
2117 case Bytecodes::_i2d: out->print("[i2d] "); break;
2118 case Bytecodes::_i2f: out->print("[i2f] "); break;
2119 case Bytecodes::_i2l: out->print("[i2l] "); break;
2120 case Bytecodes::_i2s: out->print("[i2s] "); break;
2121 case Bytecodes::_l2i: out->print("[l2i] "); break;
2122 case Bytecodes::_l2f: out->print("[l2f] "); break;
2123 case Bytecodes::_l2d: out->print("[l2d] "); break;
2124 default:
2125 out->print("[?%d]",code);
2126 break;
2127 }
2128 }
2129
2130 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2131 klass()->print(out); out->print(" ");
2132 obj()->print(out); out->print(" ");
2133 tmp1()->print(out); out->print(" ");
2134 tmp2()->print(out); out->print(" ");
2135 tmp3()->print(out); out->print(" ");
2136 tmp4()->print(out); out->print(" ");
2137 out->print("[hdr:%d]", header_size()); out->print(" ");
2138 out->print("[obj:%d]", object_size()); out->print(" ");
2139 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2140 }
2141
2142 void LIR_OpRoundFP::print_instr(outputStream* out) const {
2143 _opr->print(out); out->print(" ");
2144 tmp()->print(out); out->print(" ");
2145 result_opr()->print(out); out->print(" ");
2146 }
2147
2148 // LIR_Op2
2149 void LIR_Op2::print_instr(outputStream* out) const {
2150 if (code() == lir_cmp || code() == lir_branch || code() == lir_cond_float_branch) {
2151 print_condition(out, condition()); out->print(" ");
2152 }
2153 in_opr1()->print(out); out->print(" ");
2154 in_opr2()->print(out); out->print(" ");
2155 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2156 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2157 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2158 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2159 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2160 result_opr()->print(out);
2161 }
2162
2163 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2164 klass()->print(out); out->print(" ");
2165 len()->print(out); out->print(" ");
2166 obj()->print(out); out->print(" ");
2167 tmp1()->print(out); out->print(" ");
2168 tmp2()->print(out); out->print(" ");
2169 tmp3()->print(out); out->print(" ");
2170 tmp4()->print(out); out->print(" ");
2171 out->print("[type:0x%x]", type()); out->print(" ");
2172 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2173 }
2174
2175
2176 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2177 object()->print(out); out->print(" ");
2178 if (code() == lir_store_check) {
2179 array()->print(out); out->print(" ");
2180 }
2181 if (code() != lir_store_check) {
2182 klass()->print_name_on(out); out->print(" ");
2183 if (fast_check()) out->print("fast_check ");
2184 }
2185 tmp1()->print(out); out->print(" ");
2186 tmp2()->print(out); out->print(" ");
2187 tmp3()->print(out); out->print(" ");
2188 result_opr()->print(out); out->print(" ");
2189 if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2190 }
2191
2192 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2193 array()->print(out); out->print(" ");
2194 value()->print(out); out->print(" ");
2195 tmp()->print(out); out->print(" ");
2196 if (stub() != NULL) {
2197 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2198 }
2199 }
2200
2201 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2202 array()->print(out); out->print(" ");
2203 tmp()->print(out); out->print(" ");
2204 }
2205
2206 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2207 result_opr()->print(out); out->print(" ");
2208 left()->print(out); out->print(" ");
2209 right()->print(out); out->print(" ");
2210 equal_result()->print(out); out->print(" ");
2211 not_equal_result()->print(out); out->print(" ");
2212 tmp1()->print(out); out->print(" ");
2213 tmp2()->print(out); out->print(" ");
2214 if (left_klass() == NULL) {
2215 out->print("unknown ");
2216 } else {
2217 left_klass()->print(out); out->print(" ");
2218 }
2219 if (right_klass() == NULL) {
2220 out->print("unknown ");
2221 } else {
2222 right_klass()->print(out); out->print(" ");
2223 }
2224 left_klass_op()->print(out); out->print(" ");
2225 right_klass_op()->print(out); out->print(" ");
2226 if (stub() != NULL) {
2227 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2228 }
2229 }
2230
2231 // LIR_Op3
2232 void LIR_Op3::print_instr(outputStream* out) const {
2233 in_opr1()->print(out); out->print(" ");
2234 in_opr2()->print(out); out->print(" ");
2235 in_opr3()->print(out); out->print(" ");
2236 result_opr()->print(out);
2237 }
2238
2239 // LIR_Op4
2240 void LIR_Op4::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 in_opr3()->print(out); out->print(" ");
2245 in_opr4()->print(out); out->print(" ");
2246 result_opr()->print(out);
2247 }
2248
2249 void LIR_OpLock::print_instr(outputStream* out) const {
2250 hdr_opr()->print(out); out->print(" ");
2251 obj_opr()->print(out); out->print(" ");
2252 lock_opr()->print(out); out->print(" ");
2253 if (_scratch->is_valid()) {
2254 _scratch->print(out); out->print(" ");
2255 }
2256 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2257 }
2258
2259 void LIR_OpLoadKlass::print_instr(outputStream* out) const {
2260 obj()->print(out); out->print(" ");
2261 result_opr()->print(out); out->print(" ");
2262 }
2263
2264 #ifdef ASSERT
2265 void LIR_OpAssert::print_instr(outputStream* out) const {
2266 print_condition(out, condition()); out->print(" ");
2267 in_opr1()->print(out); out->print(" ");
2268 in_opr2()->print(out); out->print(", \"");
2269 out->print("%s", msg()); out->print("\"");
2270 }
2271 #endif
2272
2273
2274 void LIR_OpDelay::print_instr(outputStream* out) const {
2275 _op->print_on(out);
2276 }
2277
2278
2279 // LIR_OpProfileCall
2280 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2281 profiled_method()->name()->print_symbol_on(out);
2282 out->print(".");
2283 profiled_method()->holder()->name()->print_symbol_on(out);
2284 out->print(" @ %d ", profiled_bci());
2285 mdo()->print(out); out->print(" ");
2286 recv()->print(out); out->print(" ");
2287 tmp1()->print(out); out->print(" ");
2288 }
2289
2290 // LIR_OpProfileType
2291 void LIR_OpProfileType::print_instr(outputStream* out) const {
2292 out->print("exact = ");
2293 if (exact_klass() == NULL) {
2294 out->print("unknown");
2295 } else {
2296 exact_klass()->print_name_on(out);
2297 }
2298 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2299 out->print(" ");
2300 mdp()->print(out); out->print(" ");
2301 obj()->print(out); out->print(" ");
2302 tmp()->print(out); out->print(" ");
2303 }
2304
2305 // LIR_OpProfileInlineType
2306 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2307 out->print(" flag = %x ", flag());
2308 mdp()->print(out); out->print(" ");
2309 obj()->print(out); out->print(" ");
2310 tmp()->print(out); out->print(" ");
2311 }
2312
2313 #endif // PRODUCT
2314
2315 // Implementation of LIR_InsertionBuffer
2316
2317 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2318 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2319
2320 int i = number_of_insertion_points() - 1;
2321 if (i < 0 || index_at(i) < index) {
2322 append_new(index, 1);
2323 } else {
2324 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2325 assert(count_at(i) > 0, "check");
2326 set_count_at(i, count_at(i) + 1);
2327 }
2328 _ops.push(op);
2329
2330 DEBUG_ONLY(verify());
2331 }
2332
2333 #ifdef ASSERT
2334 void LIR_InsertionBuffer::verify() {
2335 int sum = 0;
2336 int prev_idx = -1;
2337
2338 for (int i = 0; i < number_of_insertion_points(); i++) {
2339 assert(prev_idx < index_at(i), "index must be ordered ascending");
2340 sum += count_at(i);
2341 }
2342 assert(sum == number_of_ops(), "wrong total sum");
2343 }
2344 #endif