1 /*
2 * Copyright (c) 2000, 2019, 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_InstructionPrinter.hpp"
27 #include "c1/c1_LIR.hpp"
28 #include "c1/c1_LIRAssembler.hpp"
29 #include "c1/c1_ValueStack.hpp"
30 #include "ci/ciInstance.hpp"
31 #include "ci/ciValueKlass.hpp"
32 #include "runtime/sharedRuntime.hpp"
33
34 Register LIR_OprDesc::as_register() const {
35 return FrameMap::cpu_rnr2reg(cpu_regnr());
36 }
37
38 Register LIR_OprDesc::as_register_lo() const {
39 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
40 }
41
42 Register LIR_OprDesc::as_register_hi() const {
43 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
44 }
45
46 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
47
48 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
49 ValueTag tag = type->tag();
50 switch (tag) {
51 case metaDataTag : {
52 ClassConstant* c = type->as_ClassConstant();
53 if (c != NULL && !c->value()->is_loaded()) {
54 return LIR_OprFact::metadataConst(NULL);
55 } else if (c != NULL) {
56 return LIR_OprFact::metadataConst(c->value()->constant_encoding());
57 } else {
58 MethodConstant* m = type->as_MethodConstant();
59 assert (m != NULL, "not a class or a method?");
60 return LIR_OprFact::metadataConst(m->value()->constant_encoding());
61 }
62 }
63 case objectTag : {
64 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
65 }
66 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
67 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value());
68 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
69 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value());
70 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
71 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
72 }
73 }
74
75
76 LIR_Opr LIR_OprFact::dummy_value_type(ValueType* type) {
77 switch (type->tag()) {
78 case objectTag: return LIR_OprFact::oopConst(NULL);
79 case addressTag:return LIR_OprFact::addressConst(0);
80 case intTag: return LIR_OprFact::intConst(0);
81 case floatTag: return LIR_OprFact::floatConst(0.0);
82 case longTag: return LIR_OprFact::longConst(0);
83 case doubleTag: return LIR_OprFact::doubleConst(0.0);
84 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
85 }
86 return illegalOpr;
87 }
88
89
90
91 //---------------------------------------------------
92
93
94 LIR_Address::Scale LIR_Address::scale(BasicType type) {
95 int elem_size = type2aelembytes(type);
96 switch (elem_size) {
97 case 1: return LIR_Address::times_1;
98 case 2: return LIR_Address::times_2;
99 case 4: return LIR_Address::times_4;
100 case 8: return LIR_Address::times_8;
101 }
102 ShouldNotReachHere();
103 return LIR_Address::times_1;
104 }
105
106 //---------------------------------------------------
107
108 char LIR_OprDesc::type_char(BasicType t) {
109 switch (t) {
110 case T_ARRAY:
111 case T_VALUETYPE:
112 t = T_OBJECT;
113 case T_BOOLEAN:
114 case T_CHAR:
115 case T_FLOAT:
116 case T_DOUBLE:
117 case T_BYTE:
118 case T_SHORT:
119 case T_INT:
120 case T_LONG:
121 case T_OBJECT:
122 case T_ADDRESS:
123 case T_VOID:
124 return ::type2char(t);
125 case T_METADATA:
126 return 'M';
127 case T_ILLEGAL:
128 return '?';
129
130 default:
131 ShouldNotReachHere();
132 return '?';
133 }
134 }
135
136 #ifndef PRODUCT
137 void LIR_OprDesc::validate_type() const {
138
139 #ifdef ASSERT
140 if (!is_pointer() && !is_illegal()) {
141 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
142 switch (as_BasicType(type_field())) {
143 case T_LONG:
144 assert((kindfield == cpu_register || kindfield == stack_value) &&
145 size_field() == double_size, "must match");
146 break;
147 case T_FLOAT:
148 // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
149 assert((kindfield == fpu_register || kindfield == stack_value
150 ARM_ONLY(|| kindfield == cpu_register)
151 PPC32_ONLY(|| kindfield == cpu_register) ) &&
152 size_field() == single_size, "must match");
153 break;
154 case T_DOUBLE:
155 // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
156 assert((kindfield == fpu_register || kindfield == stack_value
157 ARM_ONLY(|| kindfield == cpu_register)
158 PPC32_ONLY(|| kindfield == cpu_register) ) &&
159 size_field() == double_size, "must match");
160 break;
161 case T_BOOLEAN:
162 case T_CHAR:
163 case T_BYTE:
164 case T_SHORT:
165 case T_INT:
166 case T_ADDRESS:
167 case T_OBJECT:
168 case T_METADATA:
169 case T_ARRAY:
170 case T_VALUETYPE:
171 assert((kindfield == cpu_register || kindfield == stack_value) &&
172 size_field() == single_size, "must match");
173 break;
174
175 case T_ILLEGAL:
176 // XXX TKR also means unknown right now
177 // assert(is_illegal(), "must match");
178 break;
179
180 default:
181 ShouldNotReachHere();
182 }
183 }
184 #endif
185
186 }
187 #endif // PRODUCT
188
189
190 bool LIR_OprDesc::is_oop() const {
191 if (is_pointer()) {
192 return pointer()->is_oop_pointer();
193 } else {
194 OprType t= type_field();
195 assert(t != unknown_type, "not set");
196 return t == object_type;
197 }
198 }
199
200
201
202 void LIR_Op2::verify() const {
203 #ifdef ASSERT
204 switch (code()) {
205 case lir_cmove:
206 case lir_xchg:
207 break;
208
209 default:
210 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
211 "can't produce oops from arith");
212 }
213
214 if (TwoOperandLIRForm) {
215
216 #ifdef ASSERT
217 bool threeOperandForm = false;
218 #ifdef S390
219 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
220 threeOperandForm =
221 code() == lir_shl ||
222 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
223 #endif
224 #endif
225
226 switch (code()) {
227 case lir_add:
228 case lir_sub:
229 case lir_mul:
230 case lir_mul_strictfp:
231 case lir_div:
232 case lir_div_strictfp:
233 case lir_rem:
234 case lir_logic_and:
235 case lir_logic_or:
236 case lir_logic_xor:
237 case lir_shl:
238 case lir_shr:
239 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
240 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
241 break;
242
243 // special handling for lir_ushr because of write barriers
244 case lir_ushr:
245 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
246 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
247 break;
248
249 default:
250 break;
251 }
252 }
253 #endif
254 }
255
256
257 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block)
258 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
259 , _cond(cond)
260 , _type(type)
261 , _label(block->label())
262 , _block(block)
263 , _ublock(NULL)
264 , _stub(NULL) {
265 }
266
267 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, CodeStub* stub) :
268 LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
269 , _cond(cond)
270 , _type(type)
271 , _label(stub->entry())
272 , _block(NULL)
273 , _ublock(NULL)
274 , _stub(stub) {
275 }
276
277 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BasicType type, BlockBegin* block, BlockBegin* ublock)
278 : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
279 , _cond(cond)
280 , _type(type)
281 , _label(block->label())
282 , _block(block)
283 , _ublock(ublock)
284 , _stub(NULL)
285 {
286 }
287
288 void LIR_OpBranch::change_block(BlockBegin* b) {
289 assert(_block != NULL, "must have old block");
290 assert(_block->label() == label(), "must be equal");
291
292 _block = b;
293 _label = b->label();
294 }
295
296 void LIR_OpBranch::change_ublock(BlockBegin* b) {
297 assert(_ublock != NULL, "must have old block");
298 _ublock = b;
299 }
300
301 void LIR_OpBranch::negate_cond() {
302 switch (_cond) {
303 case lir_cond_equal: _cond = lir_cond_notEqual; break;
304 case lir_cond_notEqual: _cond = lir_cond_equal; break;
305 case lir_cond_less: _cond = lir_cond_greaterEqual; break;
306 case lir_cond_lessEqual: _cond = lir_cond_greater; break;
307 case lir_cond_greaterEqual: _cond = lir_cond_less; break;
308 case lir_cond_greater: _cond = lir_cond_lessEqual; break;
309 default: ShouldNotReachHere();
310 }
311 }
312
313
314 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
315 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
316 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
317 CodeStub* stub, bool need_null_check)
318
319 : LIR_Op(code, result, NULL)
320 , _object(object)
321 , _array(LIR_OprFact::illegalOpr)
322 , _klass(klass)
323 , _tmp1(tmp1)
324 , _tmp2(tmp2)
325 , _tmp3(tmp3)
326 , _fast_check(fast_check)
327 , _info_for_patch(info_for_patch)
328 , _info_for_exception(info_for_exception)
329 , _stub(stub)
330 , _profiled_method(NULL)
331 , _profiled_bci(-1)
332 , _should_profile(false)
333 , _need_null_check(need_null_check)
334 {
335 if (code == lir_checkcast) {
336 assert(info_for_exception != NULL, "checkcast throws exceptions");
337 } else if (code == lir_instanceof) {
338 assert(info_for_exception == NULL, "instanceof throws no exceptions");
339 } else {
340 ShouldNotReachHere();
341 }
342 }
343
344
345
346 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)
347 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
348 , _object(object)
349 , _array(array)
350 , _klass(NULL)
351 , _tmp1(tmp1)
352 , _tmp2(tmp2)
353 , _tmp3(tmp3)
354 , _fast_check(false)
355 , _info_for_patch(NULL)
356 , _info_for_exception(info_for_exception)
357 , _stub(NULL)
358 , _profiled_method(NULL)
359 , _profiled_bci(-1)
360 , _should_profile(false)
361 , _need_null_check(true)
362 {
363 if (code == lir_store_check) {
364 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
365 assert(info_for_exception != NULL, "store_check throws exceptions");
366 } else {
367 ShouldNotReachHere();
368 }
369 }
370
371 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
372 : LIR_Op(lir_flattened_array_check, LIR_OprFact::illegalOpr, NULL)
373 , _array(array)
374 , _value(value)
375 , _tmp(tmp)
376 , _stub(stub) {}
377
378
379 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
380 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, NULL)
381 , _array(array)
382 , _tmp(tmp) {}
383
384
385 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
386 LIR_Opr tmp1, LIR_Opr tmp2,
387 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
388 CodeEmitInfo* info, CodeStub* stub)
389 : LIR_Op(lir_substitutability_check, result, info)
390 , _left(left)
391 , _right(right)
392 , _equal_result(equal_result)
393 , _not_equal_result(not_equal_result)
394 , _tmp1(tmp1)
395 , _tmp2(tmp2)
396 , _left_klass(left_klass)
397 , _right_klass(right_klass)
398 , _left_klass_op(left_klass_op)
399 , _right_klass_op(right_klass_op)
400 , _stub(stub) {}
401
402
403 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
404 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
405 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
406 , _src(src)
407 , _src_pos(src_pos)
408 , _dst(dst)
409 , _dst_pos(dst_pos)
410 , _length(length)
411 , _tmp(tmp)
412 , _expected_type(expected_type)
413 , _flags(flags) {
414 _stub = new ArrayCopyStub(this);
415 }
416
417 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
418 : LIR_Op(lir_updatecrc32, res, NULL)
419 , _crc(crc)
420 , _val(val) {
421 }
422
423 //-------------------verify--------------------------
424
425 void LIR_Op1::verify() const {
426 switch(code()) {
427 case lir_move:
428 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
429 break;
430 case lir_null_check:
431 assert(in_opr()->is_register(), "must be");
432 break;
433 case lir_return:
434 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
435 break;
436 default:
437 break;
438 }
439 }
440
441 void LIR_OpRTCall::verify() const {
442 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
443 }
444
445 //-------------------visits--------------------------
446
447 // complete rework of LIR instruction visitor.
448 // The virtual call for each instruction type is replaced by a big
449 // switch that adds the operands for each instruction
450
451 void LIR_OpVisitState::visit(LIR_Op* op) {
452 // copy information from the LIR_Op
453 reset();
454 set_op(op);
455
456 switch (op->code()) {
457
458 // LIR_Op0
459 case lir_word_align: // result and info always invalid
460 case lir_backwardbranch_target: // result and info always invalid
461 case lir_build_frame: // result and info always invalid
462 case lir_fpop_raw: // result and info always invalid
463 case lir_24bit_FPU: // result and info always invalid
464 case lir_reset_FPU: // result and info always invalid
465 case lir_breakpoint: // result and info always invalid
466 case lir_membar: // result and info always invalid
467 case lir_membar_acquire: // result and info always invalid
468 case lir_membar_release: // result and info always invalid
469 case lir_membar_loadload: // result and info always invalid
470 case lir_membar_storestore: // result and info always invalid
471 case lir_membar_loadstore: // result and info always invalid
472 case lir_membar_storeload: // result and info always invalid
473 case lir_on_spin_wait:
474 {
475 assert(op->as_Op0() != NULL, "must be");
476 assert(op->_info == NULL, "info not used by this instruction");
477 assert(op->_result->is_illegal(), "not used");
478 break;
479 }
480
481 case lir_nop: // may have info, result always invalid
482 case lir_std_entry: // may have result, info always invalid
483 case lir_osr_entry: // may have result, info always invalid
484 case lir_get_thread: // may have result, info always invalid
485 {
486 assert(op->as_Op0() != NULL, "must be");
487 if (op->_info != NULL) do_info(op->_info);
488 if (op->_result->is_valid()) do_output(op->_result);
489 break;
490 }
491
492
493 // LIR_OpLabel
494 case lir_label: // result and info always invalid
495 {
496 assert(op->as_OpLabel() != NULL, "must be");
497 assert(op->_info == NULL, "info not used by this instruction");
498 assert(op->_result->is_illegal(), "not used");
499 break;
500 }
501
502
503 // LIR_Op1
504 case lir_fxch: // input always valid, result and info always invalid
505 case lir_fld: // input always valid, result and info always invalid
506 case lir_ffree: // input always valid, result and info always invalid
507 case lir_push: // input always valid, result and info always invalid
508 case lir_pop: // input always valid, result and info always invalid
509 case lir_return: // input always valid, result and info always invalid
510 case lir_leal: // input and result always valid, info always invalid
511 case lir_monaddr: // input and result always valid, info always invalid
512 case lir_null_check: // input and info always valid, result always invalid
513 case lir_move: // input and result always valid, may have info
514 case lir_pack64: // input and result always valid
515 case lir_unpack64: // input and result always valid
516 {
517 assert(op->as_Op1() != NULL, "must be");
518 LIR_Op1* op1 = (LIR_Op1*)op;
519
520 if (op1->_info) do_info(op1->_info);
521 if (op1->_opr->is_valid()) do_input(op1->_opr);
522 if (op1->_result->is_valid()) do_output(op1->_result);
523
524 break;
525 }
526
527 case lir_safepoint:
528 {
529 assert(op->as_Op1() != NULL, "must be");
530 LIR_Op1* op1 = (LIR_Op1*)op;
531
532 assert(op1->_info != NULL, ""); do_info(op1->_info);
533 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
534 assert(op1->_result->is_illegal(), "safepoint does not produce value");
535
536 break;
537 }
538
539 // LIR_OpConvert;
540 case lir_convert: // input and result always valid, info always invalid
541 {
542 assert(op->as_OpConvert() != NULL, "must be");
543 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
544
545 assert(opConvert->_info == NULL, "must be");
546 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
547 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
548 #ifdef PPC32
549 if (opConvert->_tmp1->is_valid()) do_temp(opConvert->_tmp1);
550 if (opConvert->_tmp2->is_valid()) do_temp(opConvert->_tmp2);
551 #endif
552 do_stub(opConvert->_stub);
553
554 break;
555 }
556
557 // LIR_OpBranch;
558 case lir_branch: // may have info, input and result register always invalid
559 case lir_cond_float_branch: // may have info, input and result register always invalid
560 {
561 assert(op->as_OpBranch() != NULL, "must be");
562 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
563
564 if (opBranch->_info != NULL) do_info(opBranch->_info);
565 assert(opBranch->_result->is_illegal(), "not used");
566 if (opBranch->_stub != NULL) opBranch->stub()->visit(this);
567
568 break;
569 }
570
571
572 // LIR_OpAllocObj
573 case lir_alloc_object:
574 {
575 assert(op->as_OpAllocObj() != NULL, "must be");
576 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
577
578 if (opAllocObj->_info) do_info(opAllocObj->_info);
579 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
580 do_temp(opAllocObj->_opr);
581 }
582 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
583 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
584 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
585 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
586 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
587 do_stub(opAllocObj->_stub);
588 break;
589 }
590
591
592 // LIR_OpRoundFP;
593 case lir_roundfp: {
594 assert(op->as_OpRoundFP() != NULL, "must be");
595 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
596
597 assert(op->_info == NULL, "info not used by this instruction");
598 assert(opRoundFP->_tmp->is_illegal(), "not used");
599 do_input(opRoundFP->_opr);
600 do_output(opRoundFP->_result);
601
602 break;
603 }
604
605
606 // LIR_Op2
607 case lir_cmp:
608 case lir_cmp_l2i:
609 case lir_ucmp_fd2i:
610 case lir_cmp_fd2i:
611 case lir_add:
612 case lir_sub:
613 case lir_mul:
614 case lir_div:
615 case lir_rem:
616 case lir_sqrt:
617 case lir_abs:
618 case lir_neg:
619 case lir_logic_and:
620 case lir_logic_or:
621 case lir_logic_xor:
622 case lir_shl:
623 case lir_shr:
624 case lir_ushr:
625 case lir_xadd:
626 case lir_xchg:
627 case lir_assert:
628 {
629 assert(op->as_Op2() != NULL, "must be");
630 LIR_Op2* op2 = (LIR_Op2*)op;
631 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
632 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
633
634 if (op2->_info) do_info(op2->_info);
635 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
636 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
637 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
638 if (op2->_result->is_valid()) do_output(op2->_result);
639 if (op->code() == lir_xchg || op->code() == lir_xadd) {
640 // on ARM and PPC, return value is loaded first so could
641 // destroy inputs. On other platforms that implement those
642 // (x86, sparc), the extra constrainsts are harmless.
643 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
644 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
645 }
646
647 break;
648 }
649
650 // special handling for cmove: right input operand must not be equal
651 // to the result operand, otherwise the backend fails
652 case lir_cmove:
653 {
654 assert(op->as_Op2() != NULL, "must be");
655 LIR_Op2* op2 = (LIR_Op2*)op;
656
657 assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
658 op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
659 assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
660
661 do_input(op2->_opr1);
662 do_input(op2->_opr2);
663 do_temp(op2->_opr2);
664 do_output(op2->_result);
665
666 break;
667 }
668
669 // vspecial handling for strict operations: register input operands
670 // as temp to guarantee that they do not overlap with other
671 // registers
672 case lir_mul_strictfp:
673 case lir_div_strictfp:
674 {
675 assert(op->as_Op2() != NULL, "must be");
676 LIR_Op2* op2 = (LIR_Op2*)op;
677
678 assert(op2->_info == NULL, "not used");
679 assert(op2->_opr1->is_valid(), "used");
680 assert(op2->_opr2->is_valid(), "used");
681 assert(op2->_result->is_valid(), "used");
682 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
683 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
684
685 do_input(op2->_opr1); do_temp(op2->_opr1);
686 do_input(op2->_opr2); do_temp(op2->_opr2);
687 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
688 do_output(op2->_result);
689
690 break;
691 }
692
693 case lir_throw: {
694 assert(op->as_Op2() != NULL, "must be");
695 LIR_Op2* op2 = (LIR_Op2*)op;
696
697 if (op2->_info) do_info(op2->_info);
698 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
699 if (op2->_opr2->is_valid()) do_input(op2->_opr2); // exception object is input parameter
700 assert(op2->_result->is_illegal(), "no result");
701 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
702 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
703
704 break;
705 }
706
707 case lir_unwind: {
708 assert(op->as_Op1() != NULL, "must be");
709 LIR_Op1* op1 = (LIR_Op1*)op;
710
711 assert(op1->_info == NULL, "no info");
712 assert(op1->_opr->is_valid(), "exception oop"); do_input(op1->_opr);
713 assert(op1->_result->is_illegal(), "no result");
714
715 break;
716 }
717
718 // LIR_Op3
719 case lir_idiv:
720 case lir_irem: {
721 assert(op->as_Op3() != NULL, "must be");
722 LIR_Op3* op3= (LIR_Op3*)op;
723
724 if (op3->_info) do_info(op3->_info);
725 if (op3->_opr1->is_valid()) do_input(op3->_opr1);
726
727 // second operand is input and temp, so ensure that second operand
728 // and third operand get not the same register
729 if (op3->_opr2->is_valid()) do_input(op3->_opr2);
730 if (op3->_opr2->is_valid()) do_temp(op3->_opr2);
731 if (op3->_opr3->is_valid()) do_temp(op3->_opr3);
732
733 if (op3->_result->is_valid()) do_output(op3->_result);
734
735 break;
736 }
737
738 case lir_fmad:
739 case lir_fmaf: {
740 assert(op->as_Op3() != NULL, "must be");
741 LIR_Op3* op3= (LIR_Op3*)op;
742 assert(op3->_info == NULL, "no info");
743 do_input(op3->_opr1);
744 do_input(op3->_opr2);
745 do_input(op3->_opr3);
746 do_output(op3->_result);
747 break;
748 }
749
750 // LIR_OpJavaCall
751 case lir_static_call:
752 case lir_optvirtual_call:
753 case lir_icvirtual_call:
754 case lir_virtual_call:
755 case lir_dynamic_call: {
756 LIR_OpJavaCall* opJavaCall = op->as_OpJavaCall();
757 assert(opJavaCall != NULL, "must be");
758
759 if (opJavaCall->_receiver->is_valid()) do_input(opJavaCall->_receiver);
760
761 // only visit register parameters
762 int n = opJavaCall->_arguments->length();
763 for (int i = opJavaCall->_receiver->is_valid() ? 1 : 0; i < n; i++) {
764 if (!opJavaCall->_arguments->at(i)->is_pointer()) {
765 do_input(*opJavaCall->_arguments->adr_at(i));
766 }
767 }
768
769 if (opJavaCall->_info) do_info(opJavaCall->_info);
770 if (FrameMap::method_handle_invoke_SP_save_opr() != LIR_OprFact::illegalOpr &&
771 opJavaCall->is_method_handle_invoke()) {
772 opJavaCall->_method_handle_invoke_SP_save_opr = FrameMap::method_handle_invoke_SP_save_opr();
773 do_temp(opJavaCall->_method_handle_invoke_SP_save_opr);
774 }
775 do_call();
776 if (opJavaCall->_result->is_valid()) do_output(opJavaCall->_result);
777
778 break;
779 }
780
781
782 // LIR_OpRTCall
783 case lir_rtcall: {
784 assert(op->as_OpRTCall() != NULL, "must be");
785 LIR_OpRTCall* opRTCall = (LIR_OpRTCall*)op;
786
787 // only visit register parameters
788 int n = opRTCall->_arguments->length();
789 for (int i = 0; i < n; i++) {
790 if (!opRTCall->_arguments->at(i)->is_pointer()) {
791 do_input(*opRTCall->_arguments->adr_at(i));
792 }
793 }
794 if (opRTCall->_info) do_info(opRTCall->_info);
795 if (opRTCall->_tmp->is_valid()) do_temp(opRTCall->_tmp);
796 do_call();
797 if (opRTCall->_result->is_valid()) do_output(opRTCall->_result);
798
799 break;
800 }
801
802
803 // LIR_OpArrayCopy
804 case lir_arraycopy: {
805 assert(op->as_OpArrayCopy() != NULL, "must be");
806 LIR_OpArrayCopy* opArrayCopy = (LIR_OpArrayCopy*)op;
807
808 assert(opArrayCopy->_result->is_illegal(), "unused");
809 assert(opArrayCopy->_src->is_valid(), "used"); do_input(opArrayCopy->_src); do_temp(opArrayCopy->_src);
810 assert(opArrayCopy->_src_pos->is_valid(), "used"); do_input(opArrayCopy->_src_pos); do_temp(opArrayCopy->_src_pos);
811 assert(opArrayCopy->_dst->is_valid(), "used"); do_input(opArrayCopy->_dst); do_temp(opArrayCopy->_dst);
812 assert(opArrayCopy->_dst_pos->is_valid(), "used"); do_input(opArrayCopy->_dst_pos); do_temp(opArrayCopy->_dst_pos);
813 assert(opArrayCopy->_length->is_valid(), "used"); do_input(opArrayCopy->_length); do_temp(opArrayCopy->_length);
814 assert(opArrayCopy->_tmp->is_valid(), "used"); do_temp(opArrayCopy->_tmp);
815 if (opArrayCopy->_info) do_info(opArrayCopy->_info);
816
817 // the implementation of arraycopy always has a call into the runtime
818 do_call();
819
820 break;
821 }
822
823
824 // LIR_OpUpdateCRC32
825 case lir_updatecrc32: {
826 assert(op->as_OpUpdateCRC32() != NULL, "must be");
827 LIR_OpUpdateCRC32* opUp = (LIR_OpUpdateCRC32*)op;
828
829 assert(opUp->_crc->is_valid(), "used"); do_input(opUp->_crc); do_temp(opUp->_crc);
830 assert(opUp->_val->is_valid(), "used"); do_input(opUp->_val); do_temp(opUp->_val);
831 assert(opUp->_result->is_valid(), "used"); do_output(opUp->_result);
832 assert(opUp->_info == NULL, "no info for LIR_OpUpdateCRC32");
833
834 break;
835 }
836
837
838 // LIR_OpLock
839 case lir_lock:
840 case lir_unlock: {
841 assert(op->as_OpLock() != NULL, "must be");
842 LIR_OpLock* opLock = (LIR_OpLock*)op;
843
844 if (opLock->_info) do_info(opLock->_info);
845
846 // TODO: check if these operands really have to be temp
847 // (or if input is sufficient). This may have influence on the oop map!
848 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
849 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
850 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
851
852 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
853 assert(opLock->_result->is_illegal(), "unused");
854
855 do_stub(opLock->_stub);
856 do_stub(opLock->_throw_imse_stub);
857
858 break;
859 }
860
861
862 // LIR_OpDelay
863 case lir_delay_slot: {
864 assert(op->as_OpDelay() != NULL, "must be");
865 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
866
867 visit(opDelay->delay_op());
868 break;
869 }
870
871 // LIR_OpTypeCheck
872 case lir_instanceof:
873 case lir_checkcast:
874 case lir_store_check: {
875 assert(op->as_OpTypeCheck() != NULL, "must be");
876 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
877
878 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
879 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
880 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
881 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
882 do_temp(opTypeCheck->_object);
883 }
884 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
885 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
886 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
887 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
888 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
889 do_stub(opTypeCheck->_stub);
890 break;
891 }
892
893 // LIR_OpFlattenedArrayCheck
894 case lir_flattened_array_check: {
895 assert(op->as_OpFlattenedArrayCheck() != NULL, "must be");
896 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
897
898 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
899 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
900 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
901 do_stub(opFlattenedArrayCheck->_stub);
902
903 break;
904 }
905
906 // LIR_OpNullFreeArrayCheck
907 case lir_null_free_array_check: {
908 assert(op->as_OpNullFreeArrayCheck() != NULL, "must be");
909 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
910
911 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
912 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
913 break;
914 }
915
916 // LIR_OpSubstitutabilityCheck
917 case lir_substitutability_check: {
918 assert(op->as_OpSubstitutabilityCheck() != NULL, "must be");
919 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
920 do_input(opSubstitutabilityCheck->_left);
921 do_temp (opSubstitutabilityCheck->_left);
922 do_input(opSubstitutabilityCheck->_right);
923 do_temp (opSubstitutabilityCheck->_right);
924 do_input(opSubstitutabilityCheck->_equal_result);
925 do_temp (opSubstitutabilityCheck->_equal_result);
926 do_input(opSubstitutabilityCheck->_not_equal_result);
927 do_temp (opSubstitutabilityCheck->_not_equal_result);
928 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
929 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
930 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
931 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
932 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
933 do_info(opSubstitutabilityCheck->_info);
934 do_stub(opSubstitutabilityCheck->_stub);
935 break;
936 }
937
938 // LIR_OpCompareAndSwap
939 case lir_cas_long:
940 case lir_cas_obj:
941 case lir_cas_int: {
942 assert(op->as_OpCompareAndSwap() != NULL, "must be");
943 LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
944
945 assert(opCompareAndSwap->_addr->is_valid(), "used");
946 assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
947 assert(opCompareAndSwap->_new_value->is_valid(), "used");
948 if (opCompareAndSwap->_info) do_info(opCompareAndSwap->_info);
949 do_input(opCompareAndSwap->_addr);
950 do_temp(opCompareAndSwap->_addr);
951 do_input(opCompareAndSwap->_cmp_value);
952 do_temp(opCompareAndSwap->_cmp_value);
953 do_input(opCompareAndSwap->_new_value);
954 do_temp(opCompareAndSwap->_new_value);
955 if (opCompareAndSwap->_tmp1->is_valid()) do_temp(opCompareAndSwap->_tmp1);
956 if (opCompareAndSwap->_tmp2->is_valid()) do_temp(opCompareAndSwap->_tmp2);
957 if (opCompareAndSwap->_result->is_valid()) do_output(opCompareAndSwap->_result);
958
959 break;
960 }
961
962
963 // LIR_OpAllocArray;
964 case lir_alloc_array: {
965 assert(op->as_OpAllocArray() != NULL, "must be");
966 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
967
968 if (opAllocArray->_info) do_info(opAllocArray->_info);
969 if (opAllocArray->_klass->is_valid()) do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
970 if (opAllocArray->_len->is_valid()) do_input(opAllocArray->_len); do_temp(opAllocArray->_len);
971 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
972 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
973 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
974 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
975 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
976 do_stub(opAllocArray->_stub);
977 break;
978 }
979
980 // LIR_OpProfileCall:
981 case lir_profile_call: {
982 assert(op->as_OpProfileCall() != NULL, "must be");
983 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
984
985 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
986 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
987 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
988 break;
989 }
990
991 // LIR_OpProfileType:
992 case lir_profile_type: {
993 assert(op->as_OpProfileType() != NULL, "must be");
994 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
995
996 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
997 do_input(opProfileType->_obj);
998 do_temp(opProfileType->_tmp);
999 break;
1000 }
1001 default:
1002 op->visit(this);
1003 }
1004 }
1005
1006 void LIR_Op::visit(LIR_OpVisitState* state) {
1007 ShouldNotReachHere();
1008 }
1009
1010 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1011 if (stub != NULL) {
1012 stub->visit(this);
1013 }
1014 }
1015
1016 XHandlers* LIR_OpVisitState::all_xhandler() {
1017 XHandlers* result = NULL;
1018
1019 int i;
1020 for (i = 0; i < info_count(); i++) {
1021 if (info_at(i)->exception_handlers() != NULL) {
1022 result = info_at(i)->exception_handlers();
1023 break;
1024 }
1025 }
1026
1027 #ifdef ASSERT
1028 for (i = 0; i < info_count(); i++) {
1029 assert(info_at(i)->exception_handlers() == NULL ||
1030 info_at(i)->exception_handlers() == result,
1031 "only one xhandler list allowed per LIR-operation");
1032 }
1033 #endif
1034
1035 if (result != NULL) {
1036 return result;
1037 } else {
1038 return new XHandlers();
1039 }
1040
1041 return result;
1042 }
1043
1044
1045 #ifdef ASSERT
1046 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1047 visit(op);
1048
1049 return opr_count(inputMode) == 0 &&
1050 opr_count(outputMode) == 0 &&
1051 opr_count(tempMode) == 0 &&
1052 info_count() == 0 &&
1053 !has_call() &&
1054 !has_slow_case();
1055 }
1056 #endif
1057
1058 //---------------------------------------------------
1059
1060
1061 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1062 masm->emit_call(this);
1063 }
1064
1065 bool LIR_OpJavaCall::maybe_return_as_fields(ciValueKlass** vk_ret) const {
1066 if (ValueTypeReturnedAsFields) {
1067 if (method()->signature()->maybe_returns_never_null()) {
1068 ciType* return_type = method()->return_type();
1069 if (return_type->is_valuetype()) {
1070 ciValueKlass* vk = return_type->as_value_klass();
1071 if (vk->can_be_returned_as_fields()) {
1072 if (vk_ret != NULL) {
1073 *vk_ret = vk;
1074 }
1075 return true;
1076 }
1077 } else {
1078 assert(return_type->is_instance_klass() && !return_type->as_instance_klass()->is_loaded(), "must be");
1079 if (vk_ret != NULL) {
1080 *vk_ret = NULL;
1081 }
1082 return true;
1083 }
1084 } else if (is_method_handle_invoke()) {
1085 BasicType bt = method()->return_type()->basic_type();
1086 if (bt == T_OBJECT || bt == T_VALUETYPE) {
1087 // A value type might be returned from the call but we don't know its
1088 // type. Either we get a buffered value (and nothing needs to be done)
1089 // or one of the values being returned is the klass of the value type
1090 // (RAX on x64, with LSB set to 1) and we need to allocate a value
1091 // type instance of that type and initialize it with other values being
1092 // returned (in other registers).
1093 // type.
1094 if (vk_ret != NULL) {
1095 *vk_ret = NULL;
1096 }
1097 return true;
1098 }
1099 }
1100 }
1101 return false;
1102 }
1103
1104 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1105 masm->emit_rtcall(this);
1106 }
1107
1108 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1109 masm->emit_opLabel(this);
1110 }
1111
1112 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1113 masm->emit_arraycopy(this);
1114 masm->append_code_stub(stub());
1115 }
1116
1117 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1118 masm->emit_updatecrc32(this);
1119 }
1120
1121 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1122 masm->emit_op0(this);
1123 }
1124
1125 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1126 masm->emit_op1(this);
1127 }
1128
1129 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1130 masm->emit_alloc_obj(this);
1131 masm->append_code_stub(stub());
1132 }
1133
1134 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1135 masm->emit_opBranch(this);
1136 if (stub()) {
1137 masm->append_code_stub(stub());
1138 }
1139 }
1140
1141 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1142 masm->emit_opConvert(this);
1143 if (stub() != NULL) {
1144 masm->append_code_stub(stub());
1145 }
1146 }
1147
1148 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1149 masm->emit_op2(this);
1150 }
1151
1152 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1153 masm->emit_alloc_array(this);
1154 masm->append_code_stub(stub());
1155 }
1156
1157 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1158 masm->emit_opTypeCheck(this);
1159 if (stub()) {
1160 masm->append_code_stub(stub());
1161 }
1162 }
1163
1164 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1165 masm->emit_opFlattenedArrayCheck(this);
1166 if (stub() != NULL) {
1167 masm->append_code_stub(stub());
1168 }
1169 }
1170
1171 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1172 masm->emit_opNullFreeArrayCheck(this);
1173 }
1174
1175 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1176 masm->emit_opSubstitutabilityCheck(this);
1177 if (stub() != NULL) {
1178 masm->append_code_stub(stub());
1179 }
1180 }
1181
1182 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1183 masm->emit_compare_and_swap(this);
1184 }
1185
1186 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1187 masm->emit_op3(this);
1188 }
1189
1190 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1191 masm->emit_lock(this);
1192 if (stub()) {
1193 masm->append_code_stub(stub());
1194 }
1195 if (throw_imse_stub()) {
1196 masm->append_code_stub(throw_imse_stub());
1197 }
1198 }
1199
1200 #ifdef ASSERT
1201 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1202 masm->emit_assert(this);
1203 }
1204 #endif
1205
1206 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1207 masm->emit_delay(this);
1208 }
1209
1210 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1211 masm->emit_profile_call(this);
1212 }
1213
1214 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1215 masm->emit_profile_type(this);
1216 }
1217
1218 // LIR_List
1219 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1220 : _operations(8)
1221 , _compilation(compilation)
1222 #ifndef PRODUCT
1223 , _block(block)
1224 #endif
1225 #ifdef ASSERT
1226 , _file(NULL)
1227 , _line(0)
1228 #endif
1229 { }
1230
1231
1232 #ifdef ASSERT
1233 void LIR_List::set_file_and_line(const char * file, int line) {
1234 const char * f = strrchr(file, '/');
1235 if (f == NULL) f = strrchr(file, '\\');
1236 if (f == NULL) {
1237 f = file;
1238 } else {
1239 f++;
1240 }
1241 _file = f;
1242 _line = line;
1243 }
1244 #endif
1245
1246
1247 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1248 assert(this == buffer->lir_list(), "wrong lir list");
1249 const int n = _operations.length();
1250
1251 if (buffer->number_of_ops() > 0) {
1252 // increase size of instructions list
1253 _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1254 // insert ops from buffer into instructions list
1255 int op_index = buffer->number_of_ops() - 1;
1256 int ip_index = buffer->number_of_insertion_points() - 1;
1257 int from_index = n - 1;
1258 int to_index = _operations.length() - 1;
1259 for (; ip_index >= 0; ip_index --) {
1260 int index = buffer->index_at(ip_index);
1261 // make room after insertion point
1262 while (index < from_index) {
1263 _operations.at_put(to_index --, _operations.at(from_index --));
1264 }
1265 // insert ops from buffer
1266 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1267 _operations.at_put(to_index --, buffer->op_at(op_index --));
1268 }
1269 }
1270 }
1271
1272 buffer->finish();
1273 }
1274
1275
1276 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1277 assert(reg->type() == T_OBJECT, "bad reg");
1278 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1279 }
1280
1281 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1282 assert(reg->type() == T_METADATA, "bad reg");
1283 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1284 }
1285
1286 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1287 append(new LIR_Op1(
1288 lir_move,
1289 LIR_OprFact::address(addr),
1290 src,
1291 addr->type(),
1292 patch_code,
1293 info));
1294 }
1295
1296
1297 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1298 append(new LIR_Op1(
1299 lir_move,
1300 LIR_OprFact::address(address),
1301 dst,
1302 address->type(),
1303 patch_code,
1304 info, lir_move_volatile));
1305 }
1306
1307 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1308 append(new LIR_Op1(
1309 lir_move,
1310 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1311 dst,
1312 type,
1313 patch_code,
1314 info, lir_move_volatile));
1315 }
1316
1317
1318 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1319 append(new LIR_Op1(
1320 lir_move,
1321 LIR_OprFact::intConst(v),
1322 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1323 type,
1324 patch_code,
1325 info));
1326 }
1327
1328
1329 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1330 append(new LIR_Op1(
1331 lir_move,
1332 LIR_OprFact::oopConst(o),
1333 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1334 type,
1335 patch_code,
1336 info));
1337 }
1338
1339
1340 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1341 append(new LIR_Op1(
1342 lir_move,
1343 src,
1344 LIR_OprFact::address(addr),
1345 addr->type(),
1346 patch_code,
1347 info));
1348 }
1349
1350
1351 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1352 append(new LIR_Op1(
1353 lir_move,
1354 src,
1355 LIR_OprFact::address(addr),
1356 addr->type(),
1357 patch_code,
1358 info,
1359 lir_move_volatile));
1360 }
1361
1362 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1363 append(new LIR_Op1(
1364 lir_move,
1365 src,
1366 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1367 type,
1368 patch_code,
1369 info, lir_move_volatile));
1370 }
1371
1372
1373 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1374 append(new LIR_Op3(
1375 lir_idiv,
1376 left,
1377 right,
1378 tmp,
1379 res,
1380 info));
1381 }
1382
1383
1384 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1385 append(new LIR_Op3(
1386 lir_idiv,
1387 left,
1388 LIR_OprFact::intConst(right),
1389 tmp,
1390 res,
1391 info));
1392 }
1393
1394
1395 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1396 append(new LIR_Op3(
1397 lir_irem,
1398 left,
1399 right,
1400 tmp,
1401 res,
1402 info));
1403 }
1404
1405
1406 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1407 append(new LIR_Op3(
1408 lir_irem,
1409 left,
1410 LIR_OprFact::intConst(right),
1411 tmp,
1412 res,
1413 info));
1414 }
1415
1416
1417 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1418 append(new LIR_Op2(
1419 lir_cmp,
1420 condition,
1421 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1422 LIR_OprFact::intConst(c),
1423 info));
1424 }
1425
1426
1427 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1428 append(new LIR_Op2(
1429 lir_cmp,
1430 condition,
1431 reg,
1432 LIR_OprFact::address(addr),
1433 info));
1434 }
1435
1436 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1437 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1438 append(new LIR_OpAllocObj(
1439 klass,
1440 dst,
1441 t1,
1442 t2,
1443 t3,
1444 t4,
1445 header_size,
1446 object_size,
1447 init_check,
1448 stub));
1449 }
1450
1451 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) {
1452 append(new LIR_OpAllocArray(
1453 klass,
1454 len,
1455 dst,
1456 t1,
1457 t2,
1458 t3,
1459 t4,
1460 type,
1461 stub));
1462 }
1463
1464 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1465 append(new LIR_Op2(
1466 lir_shl,
1467 value,
1468 count,
1469 dst,
1470 tmp));
1471 }
1472
1473 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1474 append(new LIR_Op2(
1475 lir_shr,
1476 value,
1477 count,
1478 dst,
1479 tmp));
1480 }
1481
1482
1483 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1484 append(new LIR_Op2(
1485 lir_ushr,
1486 value,
1487 count,
1488 dst,
1489 tmp));
1490 }
1491
1492 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1493 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1494 left,
1495 right,
1496 dst));
1497 }
1498
1499 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) {
1500 append(new LIR_OpLock(
1501 lir_lock,
1502 hdr,
1503 obj,
1504 lock,
1505 scratch,
1506 stub,
1507 info,
1508 throw_imse_stub));
1509 }
1510
1511 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1512 append(new LIR_OpLock(
1513 lir_unlock,
1514 hdr,
1515 obj,
1516 lock,
1517 scratch,
1518 stub,
1519 NULL));
1520 }
1521
1522
1523 void check_LIR() {
1524 // cannot do the proper checking as PRODUCT and other modes return different results
1525 // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1526 }
1527
1528
1529
1530 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1531 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1532 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1533 ciMethod* profiled_method, int profiled_bci, bool is_never_null) {
1534 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1535 // on the object.
1536 bool need_null_check = !is_never_null;
1537 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1538 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1539 need_null_check);
1540 if (profiled_method != NULL) {
1541 c->set_profiled_method(profiled_method);
1542 c->set_profiled_bci(profiled_bci);
1543 c->set_should_profile(true);
1544 }
1545 append(c);
1546 }
1547
1548 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) {
1549 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1550 if (profiled_method != NULL) {
1551 c->set_profiled_method(profiled_method);
1552 c->set_profiled_bci(profiled_bci);
1553 c->set_should_profile(true);
1554 }
1555 append(c);
1556 }
1557
1558
1559 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1560 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1561 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1562 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1563 if (profiled_method != NULL) {
1564 c->set_profiled_method(profiled_method);
1565 c->set_profiled_bci(profiled_bci);
1566 c->set_should_profile(true);
1567 }
1568 append(c);
1569 }
1570
1571 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1572 if (deoptimize_on_null) {
1573 // Emit an explicit null check and deoptimize if opr is null
1574 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1575 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1576 branch(lir_cond_equal, T_OBJECT, deopt);
1577 } else {
1578 // Emit an implicit null check
1579 append(new LIR_Op1(lir_null_check, opr, info));
1580 }
1581 }
1582
1583 void LIR_List::check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1584 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1585 append(c);
1586 }
1587
1588 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1589 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1590 append(c);
1591 }
1592
1593 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1594 LIR_Opr tmp1, LIR_Opr tmp2,
1595 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1596 CodeEmitInfo* info, CodeStub* stub) {
1597 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1598 tmp1, tmp2,
1599 left_klass, right_klass, left_klass_op, right_klass_op,
1600 info, stub);
1601 append(c);
1602 }
1603
1604 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1605 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1606 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1607 }
1608
1609 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1610 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1611 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1612 }
1613
1614 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1615 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1616 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1617 }
1618
1619
1620 #ifdef PRODUCT
1621
1622 void print_LIR(BlockList* blocks) {
1623 }
1624
1625 #else
1626 // LIR_OprDesc
1627 void LIR_OprDesc::print() const {
1628 print(tty);
1629 }
1630
1631 void LIR_OprDesc::print(outputStream* out) const {
1632 if (is_illegal()) {
1633 return;
1634 }
1635
1636 out->print("[");
1637 if (is_pointer()) {
1638 pointer()->print_value_on(out);
1639 } else if (is_single_stack()) {
1640 out->print("stack:%d", single_stack_ix());
1641 } else if (is_double_stack()) {
1642 out->print("dbl_stack:%d",double_stack_ix());
1643 } else if (is_virtual()) {
1644 out->print("R%d", vreg_number());
1645 } else if (is_single_cpu()) {
1646 out->print("%s", as_register()->name());
1647 } else if (is_double_cpu()) {
1648 out->print("%s", as_register_hi()->name());
1649 out->print("%s", as_register_lo()->name());
1650 #if defined(X86)
1651 } else if (is_single_xmm()) {
1652 out->print("%s", as_xmm_float_reg()->name());
1653 } else if (is_double_xmm()) {
1654 out->print("%s", as_xmm_double_reg()->name());
1655 } else if (is_single_fpu()) {
1656 out->print("fpu%d", fpu_regnr());
1657 } else if (is_double_fpu()) {
1658 out->print("fpu%d", fpu_regnrLo());
1659 #elif defined(AARCH64)
1660 } else if (is_single_fpu()) {
1661 out->print("fpu%d", fpu_regnr());
1662 } else if (is_double_fpu()) {
1663 out->print("fpu%d", fpu_regnrLo());
1664 #elif defined(ARM)
1665 } else if (is_single_fpu()) {
1666 out->print("s%d", fpu_regnr());
1667 } else if (is_double_fpu()) {
1668 out->print("d%d", fpu_regnrLo() >> 1);
1669 #else
1670 } else if (is_single_fpu()) {
1671 out->print("%s", as_float_reg()->name());
1672 } else if (is_double_fpu()) {
1673 out->print("%s", as_double_reg()->name());
1674 #endif
1675
1676 } else if (is_illegal()) {
1677 out->print("-");
1678 } else {
1679 out->print("Unknown Operand");
1680 }
1681 if (!is_illegal()) {
1682 out->print("|%c", type_char());
1683 }
1684 if (is_register() && is_last_use()) {
1685 out->print("(last_use)");
1686 }
1687 out->print("]");
1688 }
1689
1690
1691 // LIR_Address
1692 void LIR_Const::print_value_on(outputStream* out) const {
1693 switch (type()) {
1694 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1695 case T_INT: out->print("int:%d", as_jint()); break;
1696 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1697 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1698 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1699 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1700 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1701 default: out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1702 }
1703 }
1704
1705 // LIR_Address
1706 void LIR_Address::print_value_on(outputStream* out) const {
1707 out->print("Base:"); _base->print(out);
1708 if (!_index->is_illegal()) {
1709 out->print(" Index:"); _index->print(out);
1710 switch (scale()) {
1711 case times_1: break;
1712 case times_2: out->print(" * 2"); break;
1713 case times_4: out->print(" * 4"); break;
1714 case times_8: out->print(" * 8"); break;
1715 }
1716 }
1717 out->print(" Disp: " INTX_FORMAT, _disp);
1718 }
1719
1720 // debug output of block header without InstructionPrinter
1721 // (because phi functions are not necessary for LIR)
1722 static void print_block(BlockBegin* x) {
1723 // print block id
1724 BlockEnd* end = x->end();
1725 tty->print("B%d ", x->block_id());
1726
1727 // print flags
1728 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1729 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1730 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1731 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1732 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1733 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1734 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1735
1736 // print block bci range
1737 tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1738
1739 // print predecessors and successors
1740 if (x->number_of_preds() > 0) {
1741 tty->print("preds: ");
1742 for (int i = 0; i < x->number_of_preds(); i ++) {
1743 tty->print("B%d ", x->pred_at(i)->block_id());
1744 }
1745 }
1746
1747 if (x->number_of_sux() > 0) {
1748 tty->print("sux: ");
1749 for (int i = 0; i < x->number_of_sux(); i ++) {
1750 tty->print("B%d ", x->sux_at(i)->block_id());
1751 }
1752 }
1753
1754 // print exception handlers
1755 if (x->number_of_exception_handlers() > 0) {
1756 tty->print("xhandler: ");
1757 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1758 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1759 }
1760 }
1761
1762 tty->cr();
1763 }
1764
1765 void print_LIR(BlockList* blocks) {
1766 tty->print_cr("LIR:");
1767 int i;
1768 for (i = 0; i < blocks->length(); i++) {
1769 BlockBegin* bb = blocks->at(i);
1770 print_block(bb);
1771 tty->print("__id_Instruction___________________________________________"); tty->cr();
1772 bb->lir()->print_instructions();
1773 }
1774 }
1775
1776 void LIR_List::print_instructions() {
1777 for (int i = 0; i < _operations.length(); i++) {
1778 _operations.at(i)->print(); tty->cr();
1779 }
1780 tty->cr();
1781 }
1782
1783 // LIR_Ops printing routines
1784 // LIR_Op
1785 void LIR_Op::print_on(outputStream* out) const {
1786 if (id() != -1 || PrintCFGToFile) {
1787 out->print("%4d ", id());
1788 } else {
1789 out->print(" ");
1790 }
1791 out->print("%s ", name());
1792 print_instr(out);
1793 if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1794 #ifdef ASSERT
1795 if (Verbose && _file != NULL) {
1796 out->print(" (%s:%d)", _file, _line);
1797 }
1798 #endif
1799 }
1800
1801 const char * LIR_Op::name() const {
1802 const char* s = NULL;
1803 switch(code()) {
1804 // LIR_Op0
1805 case lir_membar: s = "membar"; break;
1806 case lir_membar_acquire: s = "membar_acquire"; break;
1807 case lir_membar_release: s = "membar_release"; break;
1808 case lir_membar_loadload: s = "membar_loadload"; break;
1809 case lir_membar_storestore: s = "membar_storestore"; break;
1810 case lir_membar_loadstore: s = "membar_loadstore"; break;
1811 case lir_membar_storeload: s = "membar_storeload"; break;
1812 case lir_word_align: s = "word_align"; break;
1813 case lir_label: s = "label"; break;
1814 case lir_nop: s = "nop"; break;
1815 case lir_on_spin_wait: s = "on_spin_wait"; break;
1816 case lir_backwardbranch_target: s = "backbranch"; break;
1817 case lir_std_entry: s = "std_entry"; break;
1818 case lir_osr_entry: s = "osr_entry"; break;
1819 case lir_build_frame: s = "build_frm"; break;
1820 case lir_fpop_raw: s = "fpop_raw"; break;
1821 case lir_24bit_FPU: s = "24bit_FPU"; break;
1822 case lir_reset_FPU: s = "reset_FPU"; break;
1823 case lir_breakpoint: s = "breakpoint"; break;
1824 case lir_get_thread: s = "get_thread"; break;
1825 // LIR_Op1
1826 case lir_fxch: s = "fxch"; break;
1827 case lir_fld: s = "fld"; break;
1828 case lir_ffree: s = "ffree"; break;
1829 case lir_push: s = "push"; break;
1830 case lir_pop: s = "pop"; break;
1831 case lir_null_check: s = "null_check"; break;
1832 case lir_return: s = "return"; break;
1833 case lir_safepoint: s = "safepoint"; break;
1834 case lir_leal: s = "leal"; break;
1835 case lir_branch: s = "branch"; break;
1836 case lir_cond_float_branch: s = "flt_cond_br"; break;
1837 case lir_move: s = "move"; break;
1838 case lir_roundfp: s = "roundfp"; break;
1839 case lir_rtcall: s = "rtcall"; break;
1840 case lir_throw: s = "throw"; break;
1841 case lir_unwind: s = "unwind"; break;
1842 case lir_convert: s = "convert"; break;
1843 case lir_alloc_object: s = "alloc_obj"; break;
1844 case lir_monaddr: s = "mon_addr"; break;
1845 case lir_pack64: s = "pack64"; break;
1846 case lir_unpack64: s = "unpack64"; break;
1847 // LIR_Op2
1848 case lir_cmp: s = "cmp"; break;
1849 case lir_cmp_l2i: s = "cmp_l2i"; break;
1850 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1851 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1852 case lir_cmove: s = "cmove"; break;
1853 case lir_add: s = "add"; break;
1854 case lir_sub: s = "sub"; break;
1855 case lir_mul: s = "mul"; break;
1856 case lir_mul_strictfp: s = "mul_strictfp"; break;
1857 case lir_div: s = "div"; break;
1858 case lir_div_strictfp: s = "div_strictfp"; break;
1859 case lir_rem: s = "rem"; break;
1860 case lir_abs: s = "abs"; break;
1861 case lir_neg: s = "neg"; break;
1862 case lir_sqrt: s = "sqrt"; break;
1863 case lir_logic_and: s = "logic_and"; break;
1864 case lir_logic_or: s = "logic_or"; break;
1865 case lir_logic_xor: s = "logic_xor"; break;
1866 case lir_shl: s = "shift_left"; break;
1867 case lir_shr: s = "shift_right"; break;
1868 case lir_ushr: s = "ushift_right"; break;
1869 case lir_alloc_array: s = "alloc_array"; break;
1870 case lir_xadd: s = "xadd"; break;
1871 case lir_xchg: s = "xchg"; break;
1872 // LIR_Op3
1873 case lir_idiv: s = "idiv"; break;
1874 case lir_irem: s = "irem"; break;
1875 case lir_fmad: s = "fmad"; break;
1876 case lir_fmaf: s = "fmaf"; break;
1877 // LIR_OpJavaCall
1878 case lir_static_call: s = "static"; break;
1879 case lir_optvirtual_call: s = "optvirtual"; break;
1880 case lir_icvirtual_call: s = "icvirtual"; break;
1881 case lir_virtual_call: s = "virtual"; break;
1882 case lir_dynamic_call: s = "dynamic"; break;
1883 // LIR_OpArrayCopy
1884 case lir_arraycopy: s = "arraycopy"; break;
1885 // LIR_OpUpdateCRC32
1886 case lir_updatecrc32: s = "updatecrc32"; break;
1887 // LIR_OpLock
1888 case lir_lock: s = "lock"; break;
1889 case lir_unlock: s = "unlock"; break;
1890 // LIR_OpDelay
1891 case lir_delay_slot: s = "delay"; break;
1892 // LIR_OpTypeCheck
1893 case lir_instanceof: s = "instanceof"; break;
1894 case lir_checkcast: s = "checkcast"; break;
1895 case lir_store_check: s = "store_check"; break;
1896 // LIR_OpFlattenedArrayCheck
1897 case lir_flattened_array_check: s = "flattened_array_check"; break;
1898 // LIR_OpNullFreeArrayCheck
1899 case lir_null_free_array_check: s = "null_free_array_check"; break;
1900 // LIR_OpSubstitutabilityCheck
1901 case lir_substitutability_check: s = "substitutability_check"; break;
1902 // LIR_OpCompareAndSwap
1903 case lir_cas_long: s = "cas_long"; break;
1904 case lir_cas_obj: s = "cas_obj"; break;
1905 case lir_cas_int: s = "cas_int"; break;
1906 // LIR_OpProfileCall
1907 case lir_profile_call: s = "profile_call"; break;
1908 // LIR_OpProfileType
1909 case lir_profile_type: s = "profile_type"; break;
1910 // LIR_OpAssert
1911 #ifdef ASSERT
1912 case lir_assert: s = "assert"; break;
1913 #endif
1914 case lir_none: ShouldNotReachHere();break;
1915 default: s = "illegal_op"; break;
1916 }
1917 return s;
1918 }
1919
1920 // LIR_OpJavaCall
1921 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1922 out->print("call: ");
1923 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1924 if (receiver()->is_valid()) {
1925 out->print(" [recv: "); receiver()->print(out); out->print("]");
1926 }
1927 if (result_opr()->is_valid()) {
1928 out->print(" [result: "); result_opr()->print(out); out->print("]");
1929 }
1930 }
1931
1932 // LIR_OpLabel
1933 void LIR_OpLabel::print_instr(outputStream* out) const {
1934 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1935 }
1936
1937 // LIR_OpArrayCopy
1938 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1939 src()->print(out); out->print(" ");
1940 src_pos()->print(out); out->print(" ");
1941 dst()->print(out); out->print(" ");
1942 dst_pos()->print(out); out->print(" ");
1943 length()->print(out); out->print(" ");
1944 tmp()->print(out); out->print(" ");
1945 }
1946
1947 // LIR_OpUpdateCRC32
1948 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1949 crc()->print(out); out->print(" ");
1950 val()->print(out); out->print(" ");
1951 result_opr()->print(out); out->print(" ");
1952 }
1953
1954 // LIR_OpCompareAndSwap
1955 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1956 addr()->print(out); out->print(" ");
1957 cmp_value()->print(out); out->print(" ");
1958 new_value()->print(out); out->print(" ");
1959 tmp1()->print(out); out->print(" ");
1960 tmp2()->print(out); out->print(" ");
1961
1962 }
1963
1964 // LIR_Op0
1965 void LIR_Op0::print_instr(outputStream* out) const {
1966 result_opr()->print(out);
1967 }
1968
1969 // LIR_Op1
1970 const char * LIR_Op1::name() const {
1971 if (code() == lir_move) {
1972 switch (move_kind()) {
1973 case lir_move_normal:
1974 return "move";
1975 case lir_move_unaligned:
1976 return "unaligned move";
1977 case lir_move_volatile:
1978 return "volatile_move";
1979 case lir_move_wide:
1980 return "wide_move";
1981 default:
1982 ShouldNotReachHere();
1983 return "illegal_op";
1984 }
1985 } else {
1986 return LIR_Op::name();
1987 }
1988 }
1989
1990
1991 void LIR_Op1::print_instr(outputStream* out) const {
1992 _opr->print(out); out->print(" ");
1993 result_opr()->print(out); out->print(" ");
1994 print_patch_code(out, patch_code());
1995 }
1996
1997
1998 // LIR_Op1
1999 void LIR_OpRTCall::print_instr(outputStream* out) const {
2000 intx a = (intx)addr();
2001 out->print("%s", Runtime1::name_for_address(addr()));
2002 out->print(" ");
2003 tmp()->print(out);
2004 }
2005
2006 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
2007 switch(code) {
2008 case lir_patch_none: break;
2009 case lir_patch_low: out->print("[patch_low]"); break;
2010 case lir_patch_high: out->print("[patch_high]"); break;
2011 case lir_patch_normal: out->print("[patch_normal]"); break;
2012 default: ShouldNotReachHere();
2013 }
2014 }
2015
2016 // LIR_OpBranch
2017 void LIR_OpBranch::print_instr(outputStream* out) const {
2018 print_condition(out, cond()); out->print(" ");
2019 if (block() != NULL) {
2020 out->print("[B%d] ", block()->block_id());
2021 } else if (stub() != NULL) {
2022 out->print("[");
2023 stub()->print_name(out);
2024 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2025 if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2026 } else {
2027 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2028 }
2029 if (ublock() != NULL) {
2030 out->print("unordered: [B%d] ", ublock()->block_id());
2031 }
2032 }
2033
2034 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2035 switch(cond) {
2036 case lir_cond_equal: out->print("[EQ]"); break;
2037 case lir_cond_notEqual: out->print("[NE]"); break;
2038 case lir_cond_less: out->print("[LT]"); break;
2039 case lir_cond_lessEqual: out->print("[LE]"); break;
2040 case lir_cond_greaterEqual: out->print("[GE]"); break;
2041 case lir_cond_greater: out->print("[GT]"); break;
2042 case lir_cond_belowEqual: out->print("[BE]"); break;
2043 case lir_cond_aboveEqual: out->print("[AE]"); break;
2044 case lir_cond_always: out->print("[AL]"); break;
2045 default: out->print("[%d]",cond); break;
2046 }
2047 }
2048
2049 // LIR_OpConvert
2050 void LIR_OpConvert::print_instr(outputStream* out) const {
2051 print_bytecode(out, bytecode());
2052 in_opr()->print(out); out->print(" ");
2053 result_opr()->print(out); out->print(" ");
2054 #ifdef PPC32
2055 if(tmp1()->is_valid()) {
2056 tmp1()->print(out); out->print(" ");
2057 tmp2()->print(out); out->print(" ");
2058 }
2059 #endif
2060 }
2061
2062 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2063 switch(code) {
2064 case Bytecodes::_d2f: out->print("[d2f] "); break;
2065 case Bytecodes::_d2i: out->print("[d2i] "); break;
2066 case Bytecodes::_d2l: out->print("[d2l] "); break;
2067 case Bytecodes::_f2d: out->print("[f2d] "); break;
2068 case Bytecodes::_f2i: out->print("[f2i] "); break;
2069 case Bytecodes::_f2l: out->print("[f2l] "); break;
2070 case Bytecodes::_i2b: out->print("[i2b] "); break;
2071 case Bytecodes::_i2c: out->print("[i2c] "); break;
2072 case Bytecodes::_i2d: out->print("[i2d] "); break;
2073 case Bytecodes::_i2f: out->print("[i2f] "); break;
2074 case Bytecodes::_i2l: out->print("[i2l] "); break;
2075 case Bytecodes::_i2s: out->print("[i2s] "); break;
2076 case Bytecodes::_l2i: out->print("[l2i] "); break;
2077 case Bytecodes::_l2f: out->print("[l2f] "); break;
2078 case Bytecodes::_l2d: out->print("[l2d] "); break;
2079 default:
2080 out->print("[?%d]",code);
2081 break;
2082 }
2083 }
2084
2085 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2086 klass()->print(out); out->print(" ");
2087 obj()->print(out); out->print(" ");
2088 tmp1()->print(out); out->print(" ");
2089 tmp2()->print(out); out->print(" ");
2090 tmp3()->print(out); out->print(" ");
2091 tmp4()->print(out); out->print(" ");
2092 out->print("[hdr:%d]", header_size()); out->print(" ");
2093 out->print("[obj:%d]", object_size()); out->print(" ");
2094 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2095 }
2096
2097 void LIR_OpRoundFP::print_instr(outputStream* out) const {
2098 _opr->print(out); out->print(" ");
2099 tmp()->print(out); out->print(" ");
2100 result_opr()->print(out); out->print(" ");
2101 }
2102
2103 // LIR_Op2
2104 void LIR_Op2::print_instr(outputStream* out) const {
2105 if (code() == lir_cmove || code() == lir_cmp) {
2106 print_condition(out, condition()); out->print(" ");
2107 }
2108 in_opr1()->print(out); out->print(" ");
2109 in_opr2()->print(out); out->print(" ");
2110 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2111 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2112 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2113 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2114 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2115 result_opr()->print(out);
2116 }
2117
2118 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2119 klass()->print(out); out->print(" ");
2120 len()->print(out); out->print(" ");
2121 obj()->print(out); out->print(" ");
2122 tmp1()->print(out); out->print(" ");
2123 tmp2()->print(out); out->print(" ");
2124 tmp3()->print(out); out->print(" ");
2125 tmp4()->print(out); out->print(" ");
2126 out->print("[type:0x%x]", type()); out->print(" ");
2127 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2128 }
2129
2130
2131 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2132 object()->print(out); out->print(" ");
2133 if (code() == lir_store_check) {
2134 array()->print(out); out->print(" ");
2135 }
2136 if (code() != lir_store_check) {
2137 klass()->print_name_on(out); out->print(" ");
2138 if (fast_check()) out->print("fast_check ");
2139 }
2140 tmp1()->print(out); out->print(" ");
2141 tmp2()->print(out); out->print(" ");
2142 tmp3()->print(out); out->print(" ");
2143 result_opr()->print(out); out->print(" ");
2144 if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2145 }
2146
2147 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2148 array()->print(out); out->print(" ");
2149 value()->print(out); out->print(" ");
2150 tmp()->print(out); out->print(" ");
2151 if (stub() != NULL) {
2152 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2153 }
2154 }
2155
2156 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2157 array()->print(out); out->print(" ");
2158 tmp()->print(out); out->print(" ");
2159 }
2160
2161 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2162 result_opr()->print(out); out->print(" ");
2163 left()->print(out); out->print(" ");
2164 right()->print(out); out->print(" ");
2165 equal_result()->print(out); out->print(" ");
2166 not_equal_result()->print(out); out->print(" ");
2167 tmp1()->print(out); out->print(" ");
2168 tmp2()->print(out); out->print(" ");
2169 left_klass()->print(out); out->print(" ");
2170 right_klass()->print(out); out->print(" ");
2171 left_klass_op()->print(out); out->print(" ");
2172 right_klass_op()->print(out); out->print(" ");
2173 if (stub() != NULL) {
2174 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2175 }
2176 }
2177
2178 // LIR_Op3
2179 void LIR_Op3::print_instr(outputStream* out) const {
2180 in_opr1()->print(out); out->print(" ");
2181 in_opr2()->print(out); out->print(" ");
2182 in_opr3()->print(out); out->print(" ");
2183 result_opr()->print(out);
2184 }
2185
2186
2187 void LIR_OpLock::print_instr(outputStream* out) const {
2188 hdr_opr()->print(out); out->print(" ");
2189 obj_opr()->print(out); out->print(" ");
2190 lock_opr()->print(out); out->print(" ");
2191 if (_scratch->is_valid()) {
2192 _scratch->print(out); out->print(" ");
2193 }
2194 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2195 }
2196
2197 #ifdef ASSERT
2198 void LIR_OpAssert::print_instr(outputStream* out) const {
2199 print_condition(out, condition()); out->print(" ");
2200 in_opr1()->print(out); out->print(" ");
2201 in_opr2()->print(out); out->print(", \"");
2202 out->print("%s", msg()); out->print("\"");
2203 }
2204 #endif
2205
2206
2207 void LIR_OpDelay::print_instr(outputStream* out) const {
2208 _op->print_on(out);
2209 }
2210
2211
2212 // LIR_OpProfileCall
2213 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2214 profiled_method()->name()->print_symbol_on(out);
2215 out->print(".");
2216 profiled_method()->holder()->name()->print_symbol_on(out);
2217 out->print(" @ %d ", profiled_bci());
2218 mdo()->print(out); out->print(" ");
2219 recv()->print(out); out->print(" ");
2220 tmp1()->print(out); out->print(" ");
2221 }
2222
2223 // LIR_OpProfileType
2224 void LIR_OpProfileType::print_instr(outputStream* out) const {
2225 out->print("exact = ");
2226 if (exact_klass() == NULL) {
2227 out->print("unknown");
2228 } else {
2229 exact_klass()->print_name_on(out);
2230 }
2231 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2232 out->print(" ");
2233 mdp()->print(out); out->print(" ");
2234 obj()->print(out); out->print(" ");
2235 tmp()->print(out); out->print(" ");
2236 }
2237
2238 #endif // PRODUCT
2239
2240 // Implementation of LIR_InsertionBuffer
2241
2242 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2243 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2244
2245 int i = number_of_insertion_points() - 1;
2246 if (i < 0 || index_at(i) < index) {
2247 append_new(index, 1);
2248 } else {
2249 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2250 assert(count_at(i) > 0, "check");
2251 set_count_at(i, count_at(i) + 1);
2252 }
2253 _ops.push(op);
2254
2255 DEBUG_ONLY(verify());
2256 }
2257
2258 #ifdef ASSERT
2259 void LIR_InsertionBuffer::verify() {
2260 int sum = 0;
2261 int prev_idx = -1;
2262
2263 for (int i = 0; i < number_of_insertion_points(); i++) {
2264 assert(prev_idx < index_at(i), "index must be ordered ascending");
2265 sum += count_at(i);
2266 }
2267 assert(sum == number_of_ops(), "wrong total sum");
2268 }
2269 #endif