1 /*
2 * Copyright (c) 2000, 2021, 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_OprDesc::as_register() const {
38 return FrameMap::cpu_rnr2reg(cpu_regnr());
39 }
40
41 Register LIR_OprDesc::as_register_lo() const {
42 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
43 }
44
45 Register LIR_OprDesc::as_register_hi() const {
46 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
47 }
48
49 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
50
51 LIR_Opr LIR_OprFact::value_type(ValueType* type) {
52 ValueTag tag = type->tag();
53 switch (tag) {
54 case metaDataTag : {
55 ClassConstant* c = type->as_ClassConstant();
56 if (c != NULL && !c->value()->is_loaded()) {
57 return LIR_OprFact::metadataConst(NULL);
58 } else if (c != NULL) {
59 return LIR_OprFact::metadataConst(c->value()->constant_encoding());
60 } else {
61 MethodConstant* m = type->as_MethodConstant();
62 assert (m != NULL, "not a class or a method?");
63 return LIR_OprFact::metadataConst(m->value()->constant_encoding());
64 }
65 }
66 case objectTag : {
67 return LIR_OprFact::oopConst(type->as_ObjectType()->encoding());
68 }
69 case addressTag: return LIR_OprFact::addressConst(type->as_AddressConstant()->value());
70 case intTag : return LIR_OprFact::intConst(type->as_IntConstant()->value());
71 case floatTag : return LIR_OprFact::floatConst(type->as_FloatConstant()->value());
72 case longTag : return LIR_OprFact::longConst(type->as_LongConstant()->value());
73 case doubleTag : return LIR_OprFact::doubleConst(type->as_DoubleConstant()->value());
74 default: ShouldNotReachHere(); return LIR_OprFact::intConst(-1);
75 }
76 }
77
78
79 //---------------------------------------------------
80
81
82 LIR_Address::Scale LIR_Address::scale(BasicType type) {
83 int elem_size = type2aelembytes(type);
84 switch (elem_size) {
85 case 1: return LIR_Address::times_1;
86 case 2: return LIR_Address::times_2;
87 case 4: return LIR_Address::times_4;
88 case 8: return LIR_Address::times_8;
89 }
90 ShouldNotReachHere();
91 return LIR_Address::times_1;
92 }
93
94 //---------------------------------------------------
95
96 char LIR_OprDesc::type_char(BasicType t) {
97 switch (t) {
98 case T_ARRAY:
99 case T_INLINE_TYPE:
100 t = T_OBJECT;
101 case T_BOOLEAN:
102 case T_CHAR:
103 case T_FLOAT:
104 case T_DOUBLE:
105 case T_BYTE:
106 case T_SHORT:
107 case T_INT:
108 case T_LONG:
109 case T_OBJECT:
110 case T_ADDRESS:
111 case T_VOID:
112 return ::type2char(t);
113 case T_METADATA:
114 return 'M';
115 case T_ILLEGAL:
116 return '?';
117
118 default:
119 ShouldNotReachHere();
120 return '?';
121 }
122 }
123
124 #ifndef PRODUCT
125 void LIR_OprDesc::validate_type() const {
126
127 #ifdef ASSERT
128 if (!is_pointer() && !is_illegal()) {
129 OprKind kindfield = kind_field(); // Factored out because of compiler bug, see 8002160
130 switch (as_BasicType(type_field())) {
131 case T_LONG:
132 assert((kindfield == cpu_register || kindfield == stack_value) &&
133 size_field() == double_size, "must match");
134 break;
135 case T_FLOAT:
136 // FP return values can be also in CPU registers on ARM and PPC32 (softfp ABI)
137 assert((kindfield == fpu_register || kindfield == stack_value
138 ARM_ONLY(|| kindfield == cpu_register)
139 PPC32_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 and PPC32 (softfp ABI)
144 assert((kindfield == fpu_register || kindfield == stack_value
145 ARM_ONLY(|| kindfield == cpu_register)
146 PPC32_ONLY(|| kindfield == cpu_register) ) &&
147 size_field() == double_size, "must match");
148 break;
149 case T_BOOLEAN:
150 case T_CHAR:
151 case T_BYTE:
152 case T_SHORT:
153 case T_INT:
154 case T_ADDRESS:
155 case T_OBJECT:
156 case T_METADATA:
157 case T_ARRAY:
158 case T_INLINE_TYPE:
159 assert((kindfield == cpu_register || kindfield == stack_value) &&
160 size_field() == single_size, "must match");
161 break;
162
163 case T_ILLEGAL:
164 // XXX TKR also means unknown right now
165 // assert(is_illegal(), "must match");
166 break;
167
168 default:
169 ShouldNotReachHere();
170 }
171 }
172 #endif
173
174 }
175 #endif // PRODUCT
176
177
178 bool LIR_OprDesc::is_oop() const {
179 if (is_pointer()) {
180 return pointer()->is_oop_pointer();
181 } else {
182 OprType t= type_field();
183 assert(t != unknown_type, "not set");
184 return t == object_type;
185 }
186 }
187
188
189
190 void LIR_Op2::verify() const {
191 #ifdef ASSERT
192 switch (code()) {
193 case lir_cmove:
194 case lir_xchg:
195 break;
196
197 default:
198 assert(!result_opr()->is_register() || !result_opr()->is_oop_register(),
199 "can't produce oops from arith");
200 }
201
202 if (TwoOperandLIRForm) {
203
204 #ifdef ASSERT
205 bool threeOperandForm = false;
206 #ifdef S390
207 // There are 3 operand shifts on S390 (see LIR_Assembler::shift_op()).
208 threeOperandForm =
209 code() == lir_shl ||
210 ((code() == lir_shr || code() == lir_ushr) && (result_opr()->is_double_cpu() || in_opr1()->type() == T_OBJECT));
211 #endif
212 #endif
213
214 switch (code()) {
215 case lir_add:
216 case lir_sub:
217 case lir_mul:
218 case lir_div:
219 case lir_rem:
220 case lir_logic_and:
221 case lir_logic_or:
222 case lir_logic_xor:
223 case lir_shl:
224 case lir_shr:
225 assert(in_opr1() == result_opr() || threeOperandForm, "opr1 and result must match");
226 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
227 break;
228
229 // special handling for lir_ushr because of write barriers
230 case lir_ushr:
231 assert(in_opr1() == result_opr() || in_opr2()->is_constant() || threeOperandForm, "opr1 and result must match or shift count is constant");
232 assert(in_opr1()->is_valid() && in_opr2()->is_valid(), "must be valid");
233 break;
234
235 default:
236 break;
237 }
238 }
239 #endif
240 }
241
242
243 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block)
244 : LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
245 , _cond(cond)
246 , _label(block->label())
247 , _block(block)
248 , _ublock(NULL)
249 , _stub(NULL) {
250 }
251
252 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, CodeStub* stub) :
253 LIR_Op(lir_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
254 , _cond(cond)
255 , _label(stub->entry())
256 , _block(NULL)
257 , _ublock(NULL)
258 , _stub(stub) {
259 }
260
261 LIR_OpBranch::LIR_OpBranch(LIR_Condition cond, BlockBegin* block, BlockBegin* ublock)
262 : LIR_Op(lir_cond_float_branch, LIR_OprFact::illegalOpr, (CodeEmitInfo*)NULL)
263 , _cond(cond)
264 , _label(block->label())
265 , _block(block)
266 , _ublock(ublock)
267 , _stub(NULL)
268 {
269 }
270
271 void LIR_OpBranch::change_block(BlockBegin* b) {
272 assert(_block != NULL, "must have old block");
273 assert(_block->label() == label(), "must be equal");
274
275 _block = b;
276 _label = b->label();
277 }
278
279 void LIR_OpBranch::change_ublock(BlockBegin* b) {
280 assert(_ublock != NULL, "must have old block");
281 _ublock = b;
282 }
283
284 void LIR_OpBranch::negate_cond() {
285 switch (_cond) {
286 case lir_cond_equal: _cond = lir_cond_notEqual; break;
287 case lir_cond_notEqual: _cond = lir_cond_equal; break;
288 case lir_cond_less: _cond = lir_cond_greaterEqual; break;
289 case lir_cond_lessEqual: _cond = lir_cond_greater; break;
290 case lir_cond_greaterEqual: _cond = lir_cond_less; break;
291 case lir_cond_greater: _cond = lir_cond_lessEqual; break;
292 default: ShouldNotReachHere();
293 }
294 }
295
296
297 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
298 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
299 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
300 CodeStub* stub, bool need_null_check)
301
302 : LIR_Op(code, result, NULL)
303 , _object(object)
304 , _array(LIR_OprFact::illegalOpr)
305 , _klass(klass)
306 , _tmp1(tmp1)
307 , _tmp2(tmp2)
308 , _tmp3(tmp3)
309 , _fast_check(fast_check)
310 , _info_for_patch(info_for_patch)
311 , _info_for_exception(info_for_exception)
312 , _stub(stub)
313 , _profiled_method(NULL)
314 , _profiled_bci(-1)
315 , _should_profile(false)
316 , _need_null_check(need_null_check)
317 {
318 if (code == lir_checkcast) {
319 assert(info_for_exception != NULL, "checkcast throws exceptions");
320 } else if (code == lir_instanceof) {
321 assert(info_for_exception == NULL, "instanceof throws no exceptions");
322 } else {
323 ShouldNotReachHere();
324 }
325 }
326
327
328
329 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)
330 : LIR_Op(code, LIR_OprFact::illegalOpr, NULL)
331 , _object(object)
332 , _array(array)
333 , _klass(NULL)
334 , _tmp1(tmp1)
335 , _tmp2(tmp2)
336 , _tmp3(tmp3)
337 , _fast_check(false)
338 , _info_for_patch(NULL)
339 , _info_for_exception(info_for_exception)
340 , _stub(NULL)
341 , _profiled_method(NULL)
342 , _profiled_bci(-1)
343 , _should_profile(false)
344 , _need_null_check(true)
345 {
346 if (code == lir_store_check) {
347 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
348 assert(info_for_exception != NULL, "store_check throws exceptions");
349 } else {
350 ShouldNotReachHere();
351 }
352 }
353
354 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
355 : LIR_Op(lir_flattened_array_check, LIR_OprFact::illegalOpr, NULL)
356 , _array(array)
357 , _value(value)
358 , _tmp(tmp)
359 , _stub(stub) {}
360
361
362 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
363 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, NULL)
364 , _array(array)
365 , _tmp(tmp) {}
366
367
368 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
369 LIR_Opr tmp1, LIR_Opr tmp2,
370 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
371 CodeEmitInfo* info, CodeStub* stub)
372 : LIR_Op(lir_substitutability_check, result, info)
373 , _left(left)
374 , _right(right)
375 , _equal_result(equal_result)
376 , _not_equal_result(not_equal_result)
377 , _tmp1(tmp1)
378 , _tmp2(tmp2)
379 , _left_klass(left_klass)
380 , _right_klass(right_klass)
381 , _left_klass_op(left_klass_op)
382 , _right_klass_op(right_klass_op)
383 , _stub(stub) {}
384
385
386 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
387 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
388 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
389 , _src(src)
390 , _src_pos(src_pos)
391 , _dst(dst)
392 , _dst_pos(dst_pos)
393 , _length(length)
394 , _tmp(tmp)
395 , _expected_type(expected_type)
396 , _flags(flags) {
397 _stub = new ArrayCopyStub(this);
398 }
399
400 LIR_OpUpdateCRC32::LIR_OpUpdateCRC32(LIR_Opr crc, LIR_Opr val, LIR_Opr res)
401 : LIR_Op(lir_updatecrc32, res, NULL)
402 , _crc(crc)
403 , _val(val) {
404 }
405
406 //-------------------verify--------------------------
407
408 void LIR_Op1::verify() const {
409 switch(code()) {
410 case lir_move:
411 assert(in_opr()->is_valid() && result_opr()->is_valid(), "must be");
412 break;
413 case lir_null_check:
414 assert(in_opr()->is_register(), "must be");
415 break;
416 case lir_return:
417 assert(in_opr()->is_register() || in_opr()->is_illegal(), "must be");
418 break;
419 default:
420 break;
421 }
422 }
423
424 void LIR_OpRTCall::verify() const {
425 assert(strcmp(Runtime1::name_for_address(addr()), "<unknown function>") != 0, "unknown function");
426 }
427
428 //-------------------visits--------------------------
429
430 // complete rework of LIR instruction visitor.
431 // The virtual call for each instruction type is replaced by a big
432 // switch that adds the operands for each instruction
433
434 void LIR_OpVisitState::visit(LIR_Op* op) {
435 // copy information from the LIR_Op
436 reset();
437 set_op(op);
438
439 switch (op->code()) {
440
441 // LIR_Op0
442 case lir_fpop_raw: // result and info always invalid
443 case lir_breakpoint: // result and info always invalid
444 case lir_membar: // result and info always invalid
445 case lir_membar_acquire: // result and info always invalid
446 case lir_membar_release: // result and info always invalid
447 case lir_membar_loadload: // result and info always invalid
448 case lir_membar_storestore: // result and info always invalid
449 case lir_membar_loadstore: // result and info always invalid
450 case lir_membar_storeload: // result and info always invalid
451 case lir_check_orig_pc: // result and info always invalid
452 case lir_on_spin_wait:
453 {
454 assert(op->as_Op0() != NULL, "must be");
455 assert(op->_info == NULL, "info not used by this instruction");
456 assert(op->_result->is_illegal(), "not used");
457 break;
458 }
459
460 case lir_nop: // may have info, result always invalid
461 case lir_std_entry: // may have result, info always invalid
462 case lir_osr_entry: // may have result, info always invalid
463 case lir_get_thread: // may have result, info always invalid
464 {
465 assert(op->as_Op0() != NULL, "must be");
466 if (op->_info != NULL) do_info(op->_info);
467 if (op->_result->is_valid()) do_output(op->_result);
468 break;
469 }
470
471
472 // LIR_OpLabel
473 case lir_label: // result and info always invalid
474 {
475 assert(op->as_OpLabel() != 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
482 // LIR_Op1
483 case lir_fxch: // input always valid, result and info always invalid
484 case lir_fld: // input always valid, result and info always invalid
485 case lir_push: // input always valid, result and info always invalid
486 case lir_pop: // input always valid, result and info always invalid
487 case lir_leal: // input and result always valid, info always invalid
488 case lir_monaddr: // input and result always valid, info always invalid
489 case lir_null_check: // input and info always valid, result always invalid
490 case lir_move: // input and result always valid, may have info
491 {
492 assert(op->as_Op1() != NULL, "must be");
493 LIR_Op1* op1 = (LIR_Op1*)op;
494
495 if (op1->_info) do_info(op1->_info);
496 if (op1->_opr->is_valid()) do_input(op1->_opr);
497 if (op1->_result->is_valid()) do_output(op1->_result);
498
499 break;
500 }
501
502 case lir_return:
503 {
504 assert(op->as_OpReturn() != NULL, "must be");
505 LIR_OpReturn* op_ret = (LIR_OpReturn*)op;
506
507 if (op_ret->_info) do_info(op_ret->_info);
508 if (op_ret->_opr->is_valid()) do_input(op_ret->_opr);
509 if (op_ret->_result->is_valid()) do_output(op_ret->_result);
510 if (op_ret->stub() != NULL) do_stub(op_ret->stub());
511
512 break;
513 }
514
515 case lir_safepoint:
516 {
517 assert(op->as_Op1() != NULL, "must be");
518 LIR_Op1* op1 = (LIR_Op1*)op;
519
520 assert(op1->_info != NULL, ""); do_info(op1->_info);
521 if (op1->_opr->is_valid()) do_temp(op1->_opr); // safepoints on SPARC need temporary register
522 assert(op1->_result->is_illegal(), "safepoint does not produce value");
523
524 break;
525 }
526
527 // LIR_OpConvert;
528 case lir_convert: // input and result always valid, info always invalid
529 {
530 assert(op->as_OpConvert() != NULL, "must be");
531 LIR_OpConvert* opConvert = (LIR_OpConvert*)op;
532
533 assert(opConvert->_info == NULL, "must be");
534 if (opConvert->_opr->is_valid()) do_input(opConvert->_opr);
535 if (opConvert->_result->is_valid()) do_output(opConvert->_result);
536 #ifdef PPC32
537 if (opConvert->_tmp1->is_valid()) do_temp(opConvert->_tmp1);
538 if (opConvert->_tmp2->is_valid()) do_temp(opConvert->_tmp2);
539 #endif
540 do_stub(opConvert->_stub);
541
542 break;
543 }
544
545 // LIR_OpBranch;
546 case lir_branch: // may have info, input and result register always invalid
547 case lir_cond_float_branch: // may have info, input and result register always invalid
548 {
549 assert(op->as_OpBranch() != NULL, "must be");
550 LIR_OpBranch* opBranch = (LIR_OpBranch*)op;
551
552 if (opBranch->_info != NULL) do_info(opBranch->_info);
553 assert(opBranch->_result->is_illegal(), "not used");
554 if (opBranch->_stub != NULL) opBranch->stub()->visit(this);
555
556 break;
557 }
558
559
560 // LIR_OpAllocObj
561 case lir_alloc_object:
562 {
563 assert(op->as_OpAllocObj() != NULL, "must be");
564 LIR_OpAllocObj* opAllocObj = (LIR_OpAllocObj*)op;
565
566 if (opAllocObj->_info) do_info(opAllocObj->_info);
567 if (opAllocObj->_opr->is_valid()) { do_input(opAllocObj->_opr);
568 do_temp(opAllocObj->_opr);
569 }
570 if (opAllocObj->_tmp1->is_valid()) do_temp(opAllocObj->_tmp1);
571 if (opAllocObj->_tmp2->is_valid()) do_temp(opAllocObj->_tmp2);
572 if (opAllocObj->_tmp3->is_valid()) do_temp(opAllocObj->_tmp3);
573 if (opAllocObj->_tmp4->is_valid()) do_temp(opAllocObj->_tmp4);
574 if (opAllocObj->_result->is_valid()) do_output(opAllocObj->_result);
575 do_stub(opAllocObj->_stub);
576 break;
577 }
578
579
580 // LIR_OpRoundFP;
581 case lir_roundfp: {
582 assert(op->as_OpRoundFP() != NULL, "must be");
583 LIR_OpRoundFP* opRoundFP = (LIR_OpRoundFP*)op;
584
585 assert(op->_info == NULL, "info not used by this instruction");
586 assert(opRoundFP->_tmp->is_illegal(), "not used");
587 do_input(opRoundFP->_opr);
588 do_output(opRoundFP->_result);
589
590 break;
591 }
592
593
594 // LIR_Op2
595 case lir_cmp:
596 case lir_cmp_l2i:
597 case lir_ucmp_fd2i:
598 case lir_cmp_fd2i:
599 case lir_add:
600 case lir_sub:
601 case lir_rem:
602 case lir_sqrt:
603 case lir_abs:
604 case lir_neg:
605 case lir_logic_and:
606 case lir_logic_or:
607 case lir_logic_xor:
608 case lir_shl:
609 case lir_shr:
610 case lir_ushr:
611 case lir_xadd:
612 case lir_xchg:
613 case lir_assert:
614 {
615 assert(op->as_Op2() != NULL, "must be");
616 LIR_Op2* op2 = (LIR_Op2*)op;
617 assert(op2->_tmp2->is_illegal() && op2->_tmp3->is_illegal() &&
618 op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
619
620 if (op2->_info) do_info(op2->_info);
621 if (op2->_opr1->is_valid()) do_input(op2->_opr1);
622 if (op2->_opr2->is_valid()) do_input(op2->_opr2);
623 if (op2->_tmp1->is_valid()) do_temp(op2->_tmp1);
624 if (op2->_result->is_valid()) do_output(op2->_result);
625 if (op->code() == lir_xchg || op->code() == lir_xadd) {
626 // on ARM and PPC, return value is loaded first so could
627 // destroy inputs. On other platforms that implement those
628 // (x86, sparc), the extra constrainsts are harmless.
629 if (op2->_opr1->is_valid()) do_temp(op2->_opr1);
630 if (op2->_opr2->is_valid()) do_temp(op2->_opr2);
631 }
632
633 break;
634 }
635
636 // special handling for cmove: right input operand must not be equal
637 // to the result operand, otherwise the backend fails
638 case lir_cmove:
639 {
640 assert(op->as_Op2() != NULL, "must be");
641 LIR_Op2* op2 = (LIR_Op2*)op;
642
643 assert(op2->_info == NULL && op2->_tmp1->is_illegal() && op2->_tmp2->is_illegal() &&
644 op2->_tmp3->is_illegal() && op2->_tmp4->is_illegal() && op2->_tmp5->is_illegal(), "not used");
645 assert(op2->_opr1->is_valid() && op2->_opr2->is_valid() && op2->_result->is_valid(), "used");
646
647 do_input(op2->_opr1);
648 do_input(op2->_opr2);
649 do_temp(op2->_opr2);
650 do_output(op2->_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 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 do_stub(opFlattenedArrayCheck->_stub);
887
888 break;
889 }
890
891 // LIR_OpNullFreeArrayCheck
892 case lir_null_free_array_check: {
893 assert(op->as_OpNullFreeArrayCheck() != NULL, "must be");
894 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
895
896 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
897 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
898 break;
899 }
900
901 // LIR_OpSubstitutabilityCheck
902 case lir_substitutability_check: {
903 assert(op->as_OpSubstitutabilityCheck() != NULL, "must be");
904 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
905 do_input(opSubstitutabilityCheck->_left);
906 do_temp (opSubstitutabilityCheck->_left);
907 do_input(opSubstitutabilityCheck->_right);
908 do_temp (opSubstitutabilityCheck->_right);
909 do_input(opSubstitutabilityCheck->_equal_result);
910 do_temp (opSubstitutabilityCheck->_equal_result);
911 do_input(opSubstitutabilityCheck->_not_equal_result);
912 do_temp (opSubstitutabilityCheck->_not_equal_result);
913 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
914 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
915 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
916 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
917 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
918 do_info(opSubstitutabilityCheck->_info);
919 do_stub(opSubstitutabilityCheck->_stub);
920 break;
921 }
922
923 // LIR_OpCompareAndSwap
924 case lir_cas_long:
925 case lir_cas_obj:
926 case lir_cas_int: {
927 assert(op->as_OpCompareAndSwap() != NULL, "must be");
928 LIR_OpCompareAndSwap* opCompareAndSwap = (LIR_OpCompareAndSwap*)op;
929
930 assert(opCompareAndSwap->_addr->is_valid(), "used");
931 assert(opCompareAndSwap->_cmp_value->is_valid(), "used");
932 assert(opCompareAndSwap->_new_value->is_valid(), "used");
933 if (opCompareAndSwap->_info) do_info(opCompareAndSwap->_info);
934 do_input(opCompareAndSwap->_addr);
935 do_temp(opCompareAndSwap->_addr);
936 do_input(opCompareAndSwap->_cmp_value);
937 do_temp(opCompareAndSwap->_cmp_value);
938 do_input(opCompareAndSwap->_new_value);
939 do_temp(opCompareAndSwap->_new_value);
940 if (opCompareAndSwap->_tmp1->is_valid()) do_temp(opCompareAndSwap->_tmp1);
941 if (opCompareAndSwap->_tmp2->is_valid()) do_temp(opCompareAndSwap->_tmp2);
942 if (opCompareAndSwap->_result->is_valid()) do_output(opCompareAndSwap->_result);
943
944 break;
945 }
946
947
948 // LIR_OpAllocArray;
949 case lir_alloc_array: {
950 assert(op->as_OpAllocArray() != NULL, "must be");
951 LIR_OpAllocArray* opAllocArray = (LIR_OpAllocArray*)op;
952
953 if (opAllocArray->_info) do_info(opAllocArray->_info);
954 if (opAllocArray->_klass->is_valid()) do_input(opAllocArray->_klass); do_temp(opAllocArray->_klass);
955 if (opAllocArray->_len->is_valid()) do_input(opAllocArray->_len); do_temp(opAllocArray->_len);
956 if (opAllocArray->_tmp1->is_valid()) do_temp(opAllocArray->_tmp1);
957 if (opAllocArray->_tmp2->is_valid()) do_temp(opAllocArray->_tmp2);
958 if (opAllocArray->_tmp3->is_valid()) do_temp(opAllocArray->_tmp3);
959 if (opAllocArray->_tmp4->is_valid()) do_temp(opAllocArray->_tmp4);
960 if (opAllocArray->_result->is_valid()) do_output(opAllocArray->_result);
961 do_stub(opAllocArray->_stub);
962 break;
963 }
964
965 // LIR_OpProfileCall:
966 case lir_profile_call: {
967 assert(op->as_OpProfileCall() != NULL, "must be");
968 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
969
970 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
971 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
972 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
973 break;
974 }
975
976 // LIR_OpProfileType:
977 case lir_profile_type: {
978 assert(op->as_OpProfileType() != NULL, "must be");
979 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
980
981 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
982 do_input(opProfileType->_obj);
983 do_temp(opProfileType->_tmp);
984 break;
985 }
986
987 // LIR_OpProfileInlineType:
988 case lir_profile_inline_type: {
989 assert(op->as_OpProfileInlineType() != NULL, "must be");
990 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
991
992 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
993 do_input(opProfileInlineType->_obj);
994 do_temp(opProfileInlineType->_tmp);
995 break;
996 }
997 default:
998 op->visit(this);
999 }
1000 }
1001
1002 void LIR_Op::visit(LIR_OpVisitState* state) {
1003 ShouldNotReachHere();
1004 }
1005
1006 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1007 if (stub != NULL) {
1008 stub->visit(this);
1009 }
1010 }
1011
1012 XHandlers* LIR_OpVisitState::all_xhandler() {
1013 XHandlers* result = NULL;
1014
1015 int i;
1016 for (i = 0; i < info_count(); i++) {
1017 if (info_at(i)->exception_handlers() != NULL) {
1018 result = info_at(i)->exception_handlers();
1019 break;
1020 }
1021 }
1022
1023 #ifdef ASSERT
1024 for (i = 0; i < info_count(); i++) {
1025 assert(info_at(i)->exception_handlers() == NULL ||
1026 info_at(i)->exception_handlers() == result,
1027 "only one xhandler list allowed per LIR-operation");
1028 }
1029 #endif
1030
1031 if (result != NULL) {
1032 return result;
1033 } else {
1034 return new XHandlers();
1035 }
1036
1037 return result;
1038 }
1039
1040
1041 #ifdef ASSERT
1042 bool LIR_OpVisitState::no_operands(LIR_Op* op) {
1043 visit(op);
1044
1045 return opr_count(inputMode) == 0 &&
1046 opr_count(outputMode) == 0 &&
1047 opr_count(tempMode) == 0 &&
1048 info_count() == 0 &&
1049 !has_call() &&
1050 !has_slow_case();
1051 }
1052 #endif
1053
1054 // LIR_OpReturn
1055 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1056 LIR_Op1(lir_return, opr, (CodeEmitInfo*)NULL /* info */),
1057 _stub(NULL) {
1058 if (VM_Version::supports_stack_watermark_barrier()) {
1059 _stub = new C1SafepointPollStub();
1060 }
1061 }
1062
1063 //---------------------------------------------------
1064
1065
1066 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1067 masm->emit_call(this);
1068 }
1069
1070 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1071 if (InlineTypeReturnedAsFields &&
1072 (method()->signature()->returns_null_free_inline_type() ||
1073 method()->is_method_handle_intrinsic())) {
1074 ciType* return_type = method()->return_type();
1075 if (return_type->is_inlinetype()) {
1076 ciInlineKlass* vk = return_type->as_inline_klass();
1077 if (vk->can_be_returned_as_fields()) {
1078 if (vk_ret != NULL) {
1079 *vk_ret = vk;
1080 }
1081 return true;
1082 }
1083 } else if (return_type->is_instance_klass()) {
1084 // An inline type might be returned from the call but we don't know its
1085 // type. Either we get a buffered inline type (and nothing needs to be done)
1086 // or one of the inlines being returned is the klass of the inline type
1087 // (RAX on x64, with LSB set to 1) and we need to allocate an inline
1088 // type instance of that type and initialize it with other values being
1089 // returned (in other registers).
1090 assert(!return_type->as_instance_klass()->is_loaded() ||
1091 method()->is_method_handle_intrinsic(), "unexpected return type");
1092 return true;
1093 }
1094 }
1095 return false;
1096 }
1097
1098 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1099 masm->emit_rtcall(this);
1100 }
1101
1102 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1103 masm->emit_opLabel(this);
1104 }
1105
1106 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1107 masm->emit_arraycopy(this);
1108 masm->append_code_stub(stub());
1109 }
1110
1111 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1112 masm->emit_updatecrc32(this);
1113 }
1114
1115 void LIR_Op0::emit_code(LIR_Assembler* masm) {
1116 masm->emit_op0(this);
1117 }
1118
1119 void LIR_Op1::emit_code(LIR_Assembler* masm) {
1120 masm->emit_op1(this);
1121 }
1122
1123 void LIR_OpAllocObj::emit_code(LIR_Assembler* masm) {
1124 masm->emit_alloc_obj(this);
1125 masm->append_code_stub(stub());
1126 }
1127
1128 void LIR_OpBranch::emit_code(LIR_Assembler* masm) {
1129 masm->emit_opBranch(this);
1130 if (stub()) {
1131 masm->append_code_stub(stub());
1132 }
1133 }
1134
1135 void LIR_OpConvert::emit_code(LIR_Assembler* masm) {
1136 masm->emit_opConvert(this);
1137 if (stub() != NULL) {
1138 masm->append_code_stub(stub());
1139 }
1140 }
1141
1142 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1143 masm->emit_op2(this);
1144 }
1145
1146 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1147 masm->emit_alloc_array(this);
1148 masm->append_code_stub(stub());
1149 }
1150
1151 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1152 masm->emit_opTypeCheck(this);
1153 if (stub()) {
1154 masm->append_code_stub(stub());
1155 }
1156 }
1157
1158 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1159 masm->emit_opFlattenedArrayCheck(this);
1160 if (stub() != NULL) {
1161 masm->append_code_stub(stub());
1162 }
1163 }
1164
1165 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1166 masm->emit_opNullFreeArrayCheck(this);
1167 }
1168
1169 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1170 masm->emit_opSubstitutabilityCheck(this);
1171 if (stub() != NULL) {
1172 masm->append_code_stub(stub());
1173 }
1174 }
1175
1176 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1177 masm->emit_compare_and_swap(this);
1178 }
1179
1180 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1181 masm->emit_op3(this);
1182 }
1183
1184 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1185 masm->emit_lock(this);
1186 if (stub()) {
1187 masm->append_code_stub(stub());
1188 }
1189 if (throw_imse_stub()) {
1190 masm->append_code_stub(throw_imse_stub());
1191 }
1192 }
1193
1194 #ifdef ASSERT
1195 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1196 masm->emit_assert(this);
1197 }
1198 #endif
1199
1200 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1201 masm->emit_delay(this);
1202 }
1203
1204 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1205 masm->emit_profile_call(this);
1206 }
1207
1208 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1209 masm->emit_profile_type(this);
1210 }
1211
1212 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1213 masm->emit_profile_inline_type(this);
1214 }
1215
1216 // LIR_List
1217 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1218 : _operations(8)
1219 , _compilation(compilation)
1220 #ifndef PRODUCT
1221 , _block(block)
1222 #endif
1223 #ifdef ASSERT
1224 , _file(NULL)
1225 , _line(0)
1226 #endif
1227 { }
1228
1229
1230 #ifdef ASSERT
1231 void LIR_List::set_file_and_line(const char * file, int line) {
1232 const char * f = strrchr(file, '/');
1233 if (f == NULL) f = strrchr(file, '\\');
1234 if (f == NULL) {
1235 f = file;
1236 } else {
1237 f++;
1238 }
1239 _file = f;
1240 _line = line;
1241 }
1242 #endif
1243
1244
1245 void LIR_List::append(LIR_InsertionBuffer* buffer) {
1246 assert(this == buffer->lir_list(), "wrong lir list");
1247 const int n = _operations.length();
1248
1249 if (buffer->number_of_ops() > 0) {
1250 // increase size of instructions list
1251 _operations.at_grow(n + buffer->number_of_ops() - 1, NULL);
1252 // insert ops from buffer into instructions list
1253 int op_index = buffer->number_of_ops() - 1;
1254 int ip_index = buffer->number_of_insertion_points() - 1;
1255 int from_index = n - 1;
1256 int to_index = _operations.length() - 1;
1257 for (; ip_index >= 0; ip_index --) {
1258 int index = buffer->index_at(ip_index);
1259 // make room after insertion point
1260 while (index < from_index) {
1261 _operations.at_put(to_index --, _operations.at(from_index --));
1262 }
1263 // insert ops from buffer
1264 for (int i = buffer->count_at(ip_index); i > 0; i --) {
1265 _operations.at_put(to_index --, buffer->op_at(op_index --));
1266 }
1267 }
1268 }
1269
1270 buffer->finish();
1271 }
1272
1273
1274 void LIR_List::oop2reg_patch(jobject o, LIR_Opr reg, CodeEmitInfo* info) {
1275 assert(reg->type() == T_OBJECT, "bad reg");
1276 append(new LIR_Op1(lir_move, LIR_OprFact::oopConst(o), reg, T_OBJECT, lir_patch_normal, info));
1277 }
1278
1279 void LIR_List::klass2reg_patch(Metadata* o, LIR_Opr reg, CodeEmitInfo* info) {
1280 assert(reg->type() == T_METADATA, "bad reg");
1281 append(new LIR_Op1(lir_move, LIR_OprFact::metadataConst(o), reg, T_METADATA, lir_patch_normal, info));
1282 }
1283
1284 void LIR_List::load(LIR_Address* addr, LIR_Opr src, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1285 append(new LIR_Op1(
1286 lir_move,
1287 LIR_OprFact::address(addr),
1288 src,
1289 addr->type(),
1290 patch_code,
1291 info));
1292 }
1293
1294
1295 void LIR_List::volatile_load_mem_reg(LIR_Address* address, LIR_Opr dst, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1296 append(new LIR_Op1(
1297 lir_move,
1298 LIR_OprFact::address(address),
1299 dst,
1300 address->type(),
1301 patch_code,
1302 info, lir_move_volatile));
1303 }
1304
1305 void LIR_List::volatile_load_unsafe_reg(LIR_Opr base, LIR_Opr offset, LIR_Opr dst, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1306 append(new LIR_Op1(
1307 lir_move,
1308 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1309 dst,
1310 type,
1311 patch_code,
1312 info, lir_move_volatile));
1313 }
1314
1315
1316 void LIR_List::store_mem_int(jint v, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1317 append(new LIR_Op1(
1318 lir_move,
1319 LIR_OprFact::intConst(v),
1320 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1321 type,
1322 patch_code,
1323 info));
1324 }
1325
1326
1327 void LIR_List::store_mem_oop(jobject o, LIR_Opr base, int offset_in_bytes, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1328 append(new LIR_Op1(
1329 lir_move,
1330 LIR_OprFact::oopConst(o),
1331 LIR_OprFact::address(new LIR_Address(base, offset_in_bytes, type)),
1332 type,
1333 patch_code,
1334 info));
1335 }
1336
1337
1338 void LIR_List::store(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1339 append(new LIR_Op1(
1340 lir_move,
1341 src,
1342 LIR_OprFact::address(addr),
1343 addr->type(),
1344 patch_code,
1345 info));
1346 }
1347
1348
1349 void LIR_List::volatile_store_mem_reg(LIR_Opr src, LIR_Address* addr, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1350 append(new LIR_Op1(
1351 lir_move,
1352 src,
1353 LIR_OprFact::address(addr),
1354 addr->type(),
1355 patch_code,
1356 info,
1357 lir_move_volatile));
1358 }
1359
1360 void LIR_List::volatile_store_unsafe_reg(LIR_Opr src, LIR_Opr base, LIR_Opr offset, BasicType type, CodeEmitInfo* info, LIR_PatchCode patch_code) {
1361 append(new LIR_Op1(
1362 lir_move,
1363 src,
1364 LIR_OprFact::address(new LIR_Address(base, offset, type)),
1365 type,
1366 patch_code,
1367 info, lir_move_volatile));
1368 }
1369
1370
1371 void LIR_List::idiv(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1372 append(new LIR_Op3(
1373 lir_idiv,
1374 left,
1375 right,
1376 tmp,
1377 res,
1378 info));
1379 }
1380
1381
1382 void LIR_List::idiv(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1383 append(new LIR_Op3(
1384 lir_idiv,
1385 left,
1386 LIR_OprFact::intConst(right),
1387 tmp,
1388 res,
1389 info));
1390 }
1391
1392
1393 void LIR_List::irem(LIR_Opr left, LIR_Opr right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1394 append(new LIR_Op3(
1395 lir_irem,
1396 left,
1397 right,
1398 tmp,
1399 res,
1400 info));
1401 }
1402
1403
1404 void LIR_List::irem(LIR_Opr left, int right, LIR_Opr res, LIR_Opr tmp, CodeEmitInfo* info) {
1405 append(new LIR_Op3(
1406 lir_irem,
1407 left,
1408 LIR_OprFact::intConst(right),
1409 tmp,
1410 res,
1411 info));
1412 }
1413
1414
1415 void LIR_List::cmp_mem_int(LIR_Condition condition, LIR_Opr base, int disp, int c, CodeEmitInfo* info) {
1416 append(new LIR_Op2(
1417 lir_cmp,
1418 condition,
1419 LIR_OprFact::address(new LIR_Address(base, disp, T_INT)),
1420 LIR_OprFact::intConst(c),
1421 info));
1422 }
1423
1424
1425 void LIR_List::cmp_reg_mem(LIR_Condition condition, LIR_Opr reg, LIR_Address* addr, CodeEmitInfo* info) {
1426 append(new LIR_Op2(
1427 lir_cmp,
1428 condition,
1429 reg,
1430 LIR_OprFact::address(addr),
1431 info));
1432 }
1433
1434 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1435 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1436 append(new LIR_OpAllocObj(
1437 klass,
1438 dst,
1439 t1,
1440 t2,
1441 t3,
1442 t4,
1443 header_size,
1444 object_size,
1445 init_check,
1446 stub));
1447 }
1448
1449 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) {
1450 append(new LIR_OpAllocArray(
1451 klass,
1452 len,
1453 dst,
1454 t1,
1455 t2,
1456 t3,
1457 t4,
1458 type,
1459 stub));
1460 }
1461
1462 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1463 append(new LIR_Op2(
1464 lir_shl,
1465 value,
1466 count,
1467 dst,
1468 tmp));
1469 }
1470
1471 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1472 append(new LIR_Op2(
1473 lir_shr,
1474 value,
1475 count,
1476 dst,
1477 tmp));
1478 }
1479
1480
1481 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1482 append(new LIR_Op2(
1483 lir_ushr,
1484 value,
1485 count,
1486 dst,
1487 tmp));
1488 }
1489
1490 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1491 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1492 left,
1493 right,
1494 dst));
1495 }
1496
1497 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) {
1498 append(new LIR_OpLock(
1499 lir_lock,
1500 hdr,
1501 obj,
1502 lock,
1503 scratch,
1504 stub,
1505 info,
1506 throw_imse_stub));
1507 }
1508
1509 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1510 append(new LIR_OpLock(
1511 lir_unlock,
1512 hdr,
1513 obj,
1514 lock,
1515 scratch,
1516 stub,
1517 NULL));
1518 }
1519
1520
1521 void check_LIR() {
1522 // cannot do the proper checking as PRODUCT and other modes return different results
1523 // guarantee(sizeof(LIR_OprDesc) == wordSize, "may not have a v-table");
1524 }
1525
1526
1527
1528 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1529 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1530 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1531 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1532 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1533 // on the object.
1534 bool need_null_check = !is_null_free;
1535 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1536 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1537 need_null_check);
1538 if (profiled_method != NULL) {
1539 c->set_profiled_method(profiled_method);
1540 c->set_profiled_bci(profiled_bci);
1541 c->set_should_profile(true);
1542 }
1543 append(c);
1544 }
1545
1546 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) {
1547 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, NULL, info_for_patch, NULL);
1548 if (profiled_method != NULL) {
1549 c->set_profiled_method(profiled_method);
1550 c->set_profiled_bci(profiled_bci);
1551 c->set_should_profile(true);
1552 }
1553 append(c);
1554 }
1555
1556
1557 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1558 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1559 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1560 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1561 if (profiled_method != NULL) {
1562 c->set_profiled_method(profiled_method);
1563 c->set_profiled_bci(profiled_bci);
1564 c->set_should_profile(true);
1565 }
1566 append(c);
1567 }
1568
1569 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1570 if (deoptimize_on_null) {
1571 // Emit an explicit null check and deoptimize if opr is null
1572 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1573 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(NULL));
1574 branch(lir_cond_equal, deopt);
1575 } else {
1576 // Emit an implicit null check
1577 append(new LIR_Op1(lir_null_check, opr, info));
1578 }
1579 }
1580
1581 void LIR_List::check_flattened_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1582 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1583 append(c);
1584 }
1585
1586 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1587 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1588 append(c);
1589 }
1590
1591 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1592 LIR_Opr tmp1, LIR_Opr tmp2,
1593 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1594 CodeEmitInfo* info, CodeStub* stub) {
1595 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1596 tmp1, tmp2,
1597 left_klass, right_klass, left_klass_op, right_klass_op,
1598 info, stub);
1599 append(c);
1600 }
1601
1602 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1603 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1604 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1605 }
1606
1607 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1608 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1609 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1610 }
1611
1612 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1613 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1614 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1615 }
1616
1617
1618 #ifdef PRODUCT
1619
1620 void print_LIR(BlockList* blocks) {
1621 }
1622
1623 #else
1624 // LIR_OprDesc
1625 void LIR_OprDesc::print() const {
1626 print(tty);
1627 }
1628
1629 void LIR_OprDesc::print(outputStream* out) const {
1630 if (is_illegal()) {
1631 return;
1632 }
1633
1634 out->print("[");
1635 if (is_pointer()) {
1636 pointer()->print_value_on(out);
1637 } else if (is_single_stack()) {
1638 out->print("stack:%d", single_stack_ix());
1639 } else if (is_double_stack()) {
1640 out->print("dbl_stack:%d",double_stack_ix());
1641 } else if (is_virtual()) {
1642 out->print("R%d", vreg_number());
1643 } else if (is_single_cpu()) {
1644 out->print("%s", as_register()->name());
1645 } else if (is_double_cpu()) {
1646 out->print("%s", as_register_hi()->name());
1647 out->print("%s", as_register_lo()->name());
1648 #if defined(X86)
1649 } else if (is_single_xmm()) {
1650 out->print("%s", as_xmm_float_reg()->name());
1651 } else if (is_double_xmm()) {
1652 out->print("%s", as_xmm_double_reg()->name());
1653 } else if (is_single_fpu()) {
1654 out->print("fpu%d", fpu_regnr());
1655 } else if (is_double_fpu()) {
1656 out->print("fpu%d", fpu_regnrLo());
1657 #elif defined(AARCH64)
1658 } else if (is_single_fpu()) {
1659 out->print("fpu%d", fpu_regnr());
1660 } else if (is_double_fpu()) {
1661 out->print("fpu%d", fpu_regnrLo());
1662 #elif defined(ARM)
1663 } else if (is_single_fpu()) {
1664 out->print("s%d", fpu_regnr());
1665 } else if (is_double_fpu()) {
1666 out->print("d%d", fpu_regnrLo() >> 1);
1667 #else
1668 } else if (is_single_fpu()) {
1669 out->print("%s", as_float_reg()->name());
1670 } else if (is_double_fpu()) {
1671 out->print("%s", as_double_reg()->name());
1672 #endif
1673
1674 } else if (is_illegal()) {
1675 out->print("-");
1676 } else {
1677 out->print("Unknown Operand");
1678 }
1679 if (!is_illegal()) {
1680 out->print("|%c", type_char());
1681 }
1682 if (is_register() && is_last_use()) {
1683 out->print("(last_use)");
1684 }
1685 out->print("]");
1686 }
1687
1688
1689 // LIR_Address
1690 void LIR_Const::print_value_on(outputStream* out) const {
1691 switch (type()) {
1692 case T_ADDRESS:out->print("address:%d",as_jint()); break;
1693 case T_INT: out->print("int:%d", as_jint()); break;
1694 case T_LONG: out->print("lng:" JLONG_FORMAT, as_jlong()); break;
1695 case T_FLOAT: out->print("flt:%f", as_jfloat()); break;
1696 case T_DOUBLE: out->print("dbl:%f", as_jdouble()); break;
1697 case T_OBJECT: out->print("obj:" INTPTR_FORMAT, p2i(as_jobject())); break;
1698 case T_METADATA: out->print("metadata:" INTPTR_FORMAT, p2i(as_metadata()));break;
1699 default: out->print("%3d:0x" UINT64_FORMAT_X, type(), (uint64_t)as_jlong()); break;
1700 }
1701 }
1702
1703 // LIR_Address
1704 void LIR_Address::print_value_on(outputStream* out) const {
1705 out->print("Base:"); _base->print(out);
1706 if (!_index->is_illegal()) {
1707 out->print(" Index:"); _index->print(out);
1708 switch (scale()) {
1709 case times_1: break;
1710 case times_2: out->print(" * 2"); break;
1711 case times_4: out->print(" * 4"); break;
1712 case times_8: out->print(" * 8"); break;
1713 }
1714 }
1715 out->print(" Disp: " INTX_FORMAT, _disp);
1716 }
1717
1718 // debug output of block header without InstructionPrinter
1719 // (because phi functions are not necessary for LIR)
1720 static void print_block(BlockBegin* x) {
1721 // print block id
1722 BlockEnd* end = x->end();
1723 tty->print("B%d ", x->block_id());
1724
1725 // print flags
1726 if (x->is_set(BlockBegin::std_entry_flag)) tty->print("std ");
1727 if (x->is_set(BlockBegin::osr_entry_flag)) tty->print("osr ");
1728 if (x->is_set(BlockBegin::exception_entry_flag)) tty->print("ex ");
1729 if (x->is_set(BlockBegin::subroutine_entry_flag)) tty->print("jsr ");
1730 if (x->is_set(BlockBegin::backward_branch_target_flag)) tty->print("bb ");
1731 if (x->is_set(BlockBegin::linear_scan_loop_header_flag)) tty->print("lh ");
1732 if (x->is_set(BlockBegin::linear_scan_loop_end_flag)) tty->print("le ");
1733
1734 // print block bci range
1735 tty->print("[%d, %d] ", x->bci(), (end == NULL ? -1 : end->printable_bci()));
1736
1737 // print predecessors and successors
1738 if (x->number_of_preds() > 0) {
1739 tty->print("preds: ");
1740 for (int i = 0; i < x->number_of_preds(); i ++) {
1741 tty->print("B%d ", x->pred_at(i)->block_id());
1742 }
1743 }
1744
1745 if (x->number_of_sux() > 0) {
1746 tty->print("sux: ");
1747 for (int i = 0; i < x->number_of_sux(); i ++) {
1748 tty->print("B%d ", x->sux_at(i)->block_id());
1749 }
1750 }
1751
1752 // print exception handlers
1753 if (x->number_of_exception_handlers() > 0) {
1754 tty->print("xhandler: ");
1755 for (int i = 0; i < x->number_of_exception_handlers(); i++) {
1756 tty->print("B%d ", x->exception_handler_at(i)->block_id());
1757 }
1758 }
1759
1760 tty->cr();
1761 }
1762
1763 void print_LIR(BlockList* blocks) {
1764 tty->print_cr("LIR:");
1765 int i;
1766 for (i = 0; i < blocks->length(); i++) {
1767 BlockBegin* bb = blocks->at(i);
1768 print_block(bb);
1769 tty->print("__id_Instruction___________________________________________"); tty->cr();
1770 bb->lir()->print_instructions();
1771 }
1772 }
1773
1774 void LIR_List::print_instructions() {
1775 for (int i = 0; i < _operations.length(); i++) {
1776 _operations.at(i)->print(); tty->cr();
1777 }
1778 tty->cr();
1779 }
1780
1781 // LIR_Ops printing routines
1782 // LIR_Op
1783 void LIR_Op::print_on(outputStream* out) const {
1784 if (id() != -1 || PrintCFGToFile) {
1785 out->print("%4d ", id());
1786 } else {
1787 out->print(" ");
1788 }
1789 out->print("%s ", name());
1790 print_instr(out);
1791 if (info() != NULL) out->print(" [bci:%d]", info()->stack()->bci());
1792 #ifdef ASSERT
1793 if (Verbose && _file != NULL) {
1794 out->print(" (%s:%d)", _file, _line);
1795 }
1796 #endif
1797 }
1798
1799 const char * LIR_Op::name() const {
1800 const char* s = NULL;
1801 switch(code()) {
1802 // LIR_Op0
1803 case lir_membar: s = "membar"; break;
1804 case lir_membar_acquire: s = "membar_acquire"; break;
1805 case lir_membar_release: s = "membar_release"; break;
1806 case lir_membar_loadload: s = "membar_loadload"; break;
1807 case lir_membar_storestore: s = "membar_storestore"; break;
1808 case lir_membar_loadstore: s = "membar_loadstore"; break;
1809 case lir_membar_storeload: s = "membar_storeload"; break;
1810 case lir_label: s = "label"; break;
1811 case lir_nop: s = "nop"; break;
1812 case lir_on_spin_wait: s = "on_spin_wait"; break;
1813 case lir_std_entry: s = "std_entry"; break;
1814 case lir_osr_entry: s = "osr_entry"; break;
1815 case lir_fpop_raw: s = "fpop_raw"; break;
1816 case lir_breakpoint: s = "breakpoint"; break;
1817 case lir_get_thread: s = "get_thread"; break;
1818 case lir_check_orig_pc: s = "check_orig_pc"; break;
1819 // LIR_Op1
1820 case lir_fxch: s = "fxch"; break;
1821 case lir_fld: s = "fld"; break;
1822 case lir_push: s = "push"; break;
1823 case lir_pop: s = "pop"; break;
1824 case lir_null_check: s = "null_check"; break;
1825 case lir_return: s = "return"; break;
1826 case lir_safepoint: s = "safepoint"; break;
1827 case lir_leal: s = "leal"; break;
1828 case lir_branch: s = "branch"; break;
1829 case lir_cond_float_branch: s = "flt_cond_br"; break;
1830 case lir_move: s = "move"; break;
1831 case lir_roundfp: s = "roundfp"; break;
1832 case lir_rtcall: s = "rtcall"; break;
1833 case lir_throw: s = "throw"; break;
1834 case lir_unwind: s = "unwind"; break;
1835 case lir_convert: s = "convert"; break;
1836 case lir_alloc_object: s = "alloc_obj"; break;
1837 case lir_monaddr: s = "mon_addr"; break;
1838 // LIR_Op2
1839 case lir_cmp: s = "cmp"; break;
1840 case lir_cmp_l2i: s = "cmp_l2i"; break;
1841 case lir_ucmp_fd2i: s = "ucomp_fd2i"; break;
1842 case lir_cmp_fd2i: s = "comp_fd2i"; break;
1843 case lir_cmove: s = "cmove"; break;
1844 case lir_add: s = "add"; break;
1845 case lir_sub: s = "sub"; break;
1846 case lir_mul: s = "mul"; break;
1847 case lir_div: s = "div"; break;
1848 case lir_rem: s = "rem"; break;
1849 case lir_abs: s = "abs"; break;
1850 case lir_neg: s = "neg"; break;
1851 case lir_sqrt: s = "sqrt"; break;
1852 case lir_logic_and: s = "logic_and"; break;
1853 case lir_logic_or: s = "logic_or"; break;
1854 case lir_logic_xor: s = "logic_xor"; break;
1855 case lir_shl: s = "shift_left"; break;
1856 case lir_shr: s = "shift_right"; break;
1857 case lir_ushr: s = "ushift_right"; break;
1858 case lir_alloc_array: s = "alloc_array"; break;
1859 case lir_xadd: s = "xadd"; break;
1860 case lir_xchg: s = "xchg"; break;
1861 // LIR_Op3
1862 case lir_idiv: s = "idiv"; break;
1863 case lir_irem: s = "irem"; break;
1864 case lir_fmad: s = "fmad"; break;
1865 case lir_fmaf: s = "fmaf"; break;
1866 // LIR_OpJavaCall
1867 case lir_static_call: s = "static"; break;
1868 case lir_optvirtual_call: s = "optvirtual"; break;
1869 case lir_icvirtual_call: s = "icvirtual"; break;
1870 case lir_dynamic_call: s = "dynamic"; break;
1871 // LIR_OpArrayCopy
1872 case lir_arraycopy: s = "arraycopy"; break;
1873 // LIR_OpUpdateCRC32
1874 case lir_updatecrc32: s = "updatecrc32"; break;
1875 // LIR_OpLock
1876 case lir_lock: s = "lock"; break;
1877 case lir_unlock: s = "unlock"; break;
1878 // LIR_OpDelay
1879 case lir_delay_slot: s = "delay"; break;
1880 // LIR_OpTypeCheck
1881 case lir_instanceof: s = "instanceof"; break;
1882 case lir_checkcast: s = "checkcast"; break;
1883 case lir_store_check: s = "store_check"; break;
1884 // LIR_OpFlattenedArrayCheck
1885 case lir_flattened_array_check: s = "flattened_array_check"; break;
1886 // LIR_OpNullFreeArrayCheck
1887 case lir_null_free_array_check: s = "null_free_array_check"; break;
1888 // LIR_OpSubstitutabilityCheck
1889 case lir_substitutability_check: s = "substitutability_check"; break;
1890 // LIR_OpCompareAndSwap
1891 case lir_cas_long: s = "cas_long"; break;
1892 case lir_cas_obj: s = "cas_obj"; break;
1893 case lir_cas_int: s = "cas_int"; break;
1894 // LIR_OpProfileCall
1895 case lir_profile_call: s = "profile_call"; break;
1896 // LIR_OpProfileType
1897 case lir_profile_type: s = "profile_type"; break;
1898 // LIR_OpProfileInlineType
1899 case lir_profile_inline_type: s = "profile_inline_type"; break;
1900 // LIR_OpAssert
1901 #ifdef ASSERT
1902 case lir_assert: s = "assert"; break;
1903 #endif
1904 case lir_none: ShouldNotReachHere();break;
1905 default: s = "illegal_op"; break;
1906 }
1907 return s;
1908 }
1909
1910 // LIR_OpJavaCall
1911 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1912 out->print("call: ");
1913 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1914 if (receiver()->is_valid()) {
1915 out->print(" [recv: "); receiver()->print(out); out->print("]");
1916 }
1917 if (result_opr()->is_valid()) {
1918 out->print(" [result: "); result_opr()->print(out); out->print("]");
1919 }
1920 }
1921
1922 // LIR_OpLabel
1923 void LIR_OpLabel::print_instr(outputStream* out) const {
1924 out->print("[label:" INTPTR_FORMAT "]", p2i(_label));
1925 }
1926
1927 // LIR_OpArrayCopy
1928 void LIR_OpArrayCopy::print_instr(outputStream* out) const {
1929 src()->print(out); out->print(" ");
1930 src_pos()->print(out); out->print(" ");
1931 dst()->print(out); out->print(" ");
1932 dst_pos()->print(out); out->print(" ");
1933 length()->print(out); out->print(" ");
1934 tmp()->print(out); out->print(" ");
1935 }
1936
1937 // LIR_OpUpdateCRC32
1938 void LIR_OpUpdateCRC32::print_instr(outputStream* out) const {
1939 crc()->print(out); out->print(" ");
1940 val()->print(out); out->print(" ");
1941 result_opr()->print(out); out->print(" ");
1942 }
1943
1944 // LIR_OpCompareAndSwap
1945 void LIR_OpCompareAndSwap::print_instr(outputStream* out) const {
1946 addr()->print(out); out->print(" ");
1947 cmp_value()->print(out); out->print(" ");
1948 new_value()->print(out); out->print(" ");
1949 tmp1()->print(out); out->print(" ");
1950 tmp2()->print(out); out->print(" ");
1951
1952 }
1953
1954 // LIR_Op0
1955 void LIR_Op0::print_instr(outputStream* out) const {
1956 result_opr()->print(out);
1957 }
1958
1959 // LIR_Op1
1960 const char * LIR_Op1::name() const {
1961 if (code() == lir_move) {
1962 switch (move_kind()) {
1963 case lir_move_normal:
1964 return "move";
1965 case lir_move_volatile:
1966 return "volatile_move";
1967 case lir_move_wide:
1968 return "wide_move";
1969 default:
1970 ShouldNotReachHere();
1971 return "illegal_op";
1972 }
1973 } else {
1974 return LIR_Op::name();
1975 }
1976 }
1977
1978
1979 void LIR_Op1::print_instr(outputStream* out) const {
1980 _opr->print(out); out->print(" ");
1981 result_opr()->print(out); out->print(" ");
1982 print_patch_code(out, patch_code());
1983 }
1984
1985
1986 // LIR_Op1
1987 void LIR_OpRTCall::print_instr(outputStream* out) const {
1988 intx a = (intx)addr();
1989 out->print("%s", Runtime1::name_for_address(addr()));
1990 out->print(" ");
1991 tmp()->print(out);
1992 }
1993
1994 void LIR_Op1::print_patch_code(outputStream* out, LIR_PatchCode code) {
1995 switch(code) {
1996 case lir_patch_none: break;
1997 case lir_patch_low: out->print("[patch_low]"); break;
1998 case lir_patch_high: out->print("[patch_high]"); break;
1999 case lir_patch_normal: out->print("[patch_normal]"); break;
2000 default: ShouldNotReachHere();
2001 }
2002 }
2003
2004 // LIR_OpBranch
2005 void LIR_OpBranch::print_instr(outputStream* out) const {
2006 print_condition(out, cond()); out->print(" ");
2007 if (block() != NULL) {
2008 out->print("[B%d] ", block()->block_id());
2009 } else if (stub() != NULL) {
2010 out->print("[");
2011 stub()->print_name(out);
2012 out->print(": " INTPTR_FORMAT "]", p2i(stub()));
2013 if (stub()->info() != NULL) out->print(" [bci:%d]", stub()->info()->stack()->bci());
2014 } else {
2015 out->print("[label:" INTPTR_FORMAT "] ", p2i(label()));
2016 }
2017 if (ublock() != NULL) {
2018 out->print("unordered: [B%d] ", ublock()->block_id());
2019 }
2020 }
2021
2022 void LIR_Op::print_condition(outputStream* out, LIR_Condition cond) {
2023 switch(cond) {
2024 case lir_cond_equal: out->print("[EQ]"); break;
2025 case lir_cond_notEqual: out->print("[NE]"); break;
2026 case lir_cond_less: out->print("[LT]"); break;
2027 case lir_cond_lessEqual: out->print("[LE]"); break;
2028 case lir_cond_greaterEqual: out->print("[GE]"); break;
2029 case lir_cond_greater: out->print("[GT]"); break;
2030 case lir_cond_belowEqual: out->print("[BE]"); break;
2031 case lir_cond_aboveEqual: out->print("[AE]"); break;
2032 case lir_cond_always: out->print("[AL]"); break;
2033 default: out->print("[%d]",cond); break;
2034 }
2035 }
2036
2037 // LIR_OpConvert
2038 void LIR_OpConvert::print_instr(outputStream* out) const {
2039 print_bytecode(out, bytecode());
2040 in_opr()->print(out); out->print(" ");
2041 result_opr()->print(out); out->print(" ");
2042 #ifdef PPC32
2043 if(tmp1()->is_valid()) {
2044 tmp1()->print(out); out->print(" ");
2045 tmp2()->print(out); out->print(" ");
2046 }
2047 #endif
2048 }
2049
2050 void LIR_OpConvert::print_bytecode(outputStream* out, Bytecodes::Code code) {
2051 switch(code) {
2052 case Bytecodes::_d2f: out->print("[d2f] "); break;
2053 case Bytecodes::_d2i: out->print("[d2i] "); break;
2054 case Bytecodes::_d2l: out->print("[d2l] "); break;
2055 case Bytecodes::_f2d: out->print("[f2d] "); break;
2056 case Bytecodes::_f2i: out->print("[f2i] "); break;
2057 case Bytecodes::_f2l: out->print("[f2l] "); break;
2058 case Bytecodes::_i2b: out->print("[i2b] "); break;
2059 case Bytecodes::_i2c: out->print("[i2c] "); break;
2060 case Bytecodes::_i2d: out->print("[i2d] "); break;
2061 case Bytecodes::_i2f: out->print("[i2f] "); break;
2062 case Bytecodes::_i2l: out->print("[i2l] "); break;
2063 case Bytecodes::_i2s: out->print("[i2s] "); break;
2064 case Bytecodes::_l2i: out->print("[l2i] "); break;
2065 case Bytecodes::_l2f: out->print("[l2f] "); break;
2066 case Bytecodes::_l2d: out->print("[l2d] "); break;
2067 default:
2068 out->print("[?%d]",code);
2069 break;
2070 }
2071 }
2072
2073 void LIR_OpAllocObj::print_instr(outputStream* out) const {
2074 klass()->print(out); out->print(" ");
2075 obj()->print(out); out->print(" ");
2076 tmp1()->print(out); out->print(" ");
2077 tmp2()->print(out); out->print(" ");
2078 tmp3()->print(out); out->print(" ");
2079 tmp4()->print(out); out->print(" ");
2080 out->print("[hdr:%d]", header_size()); out->print(" ");
2081 out->print("[obj:%d]", object_size()); out->print(" ");
2082 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2083 }
2084
2085 void LIR_OpRoundFP::print_instr(outputStream* out) const {
2086 _opr->print(out); out->print(" ");
2087 tmp()->print(out); out->print(" ");
2088 result_opr()->print(out); out->print(" ");
2089 }
2090
2091 // LIR_Op2
2092 void LIR_Op2::print_instr(outputStream* out) const {
2093 if (code() == lir_cmove || code() == lir_cmp) {
2094 print_condition(out, condition()); out->print(" ");
2095 }
2096 in_opr1()->print(out); out->print(" ");
2097 in_opr2()->print(out); out->print(" ");
2098 if (tmp1_opr()->is_valid()) { tmp1_opr()->print(out); out->print(" "); }
2099 if (tmp2_opr()->is_valid()) { tmp2_opr()->print(out); out->print(" "); }
2100 if (tmp3_opr()->is_valid()) { tmp3_opr()->print(out); out->print(" "); }
2101 if (tmp4_opr()->is_valid()) { tmp4_opr()->print(out); out->print(" "); }
2102 if (tmp5_opr()->is_valid()) { tmp5_opr()->print(out); out->print(" "); }
2103 result_opr()->print(out);
2104 }
2105
2106 void LIR_OpAllocArray::print_instr(outputStream* out) const {
2107 klass()->print(out); out->print(" ");
2108 len()->print(out); out->print(" ");
2109 obj()->print(out); out->print(" ");
2110 tmp1()->print(out); out->print(" ");
2111 tmp2()->print(out); out->print(" ");
2112 tmp3()->print(out); out->print(" ");
2113 tmp4()->print(out); out->print(" ");
2114 out->print("[type:0x%x]", type()); out->print(" ");
2115 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2116 }
2117
2118
2119 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2120 object()->print(out); out->print(" ");
2121 if (code() == lir_store_check) {
2122 array()->print(out); out->print(" ");
2123 }
2124 if (code() != lir_store_check) {
2125 klass()->print_name_on(out); out->print(" ");
2126 if (fast_check()) out->print("fast_check ");
2127 }
2128 tmp1()->print(out); out->print(" ");
2129 tmp2()->print(out); out->print(" ");
2130 tmp3()->print(out); out->print(" ");
2131 result_opr()->print(out); out->print(" ");
2132 if (info_for_exception() != NULL) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2133 }
2134
2135 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2136 array()->print(out); out->print(" ");
2137 value()->print(out); out->print(" ");
2138 tmp()->print(out); out->print(" ");
2139 if (stub() != NULL) {
2140 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2141 }
2142 }
2143
2144 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2145 array()->print(out); out->print(" ");
2146 tmp()->print(out); out->print(" ");
2147 }
2148
2149 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2150 result_opr()->print(out); out->print(" ");
2151 left()->print(out); out->print(" ");
2152 right()->print(out); out->print(" ");
2153 equal_result()->print(out); out->print(" ");
2154 not_equal_result()->print(out); out->print(" ");
2155 tmp1()->print(out); out->print(" ");
2156 tmp2()->print(out); out->print(" ");
2157 if (left_klass() == NULL) {
2158 out->print("unknown ");
2159 } else {
2160 left_klass()->print(out); out->print(" ");
2161 }
2162 if (right_klass() == NULL) {
2163 out->print("unknown ");
2164 } else {
2165 right_klass()->print(out); out->print(" ");
2166 }
2167 left_klass_op()->print(out); out->print(" ");
2168 right_klass_op()->print(out); out->print(" ");
2169 if (stub() != NULL) {
2170 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2171 }
2172 }
2173
2174 // LIR_Op3
2175 void LIR_Op3::print_instr(outputStream* out) const {
2176 in_opr1()->print(out); out->print(" ");
2177 in_opr2()->print(out); out->print(" ");
2178 in_opr3()->print(out); out->print(" ");
2179 result_opr()->print(out);
2180 }
2181
2182
2183 void LIR_OpLock::print_instr(outputStream* out) const {
2184 hdr_opr()->print(out); out->print(" ");
2185 obj_opr()->print(out); out->print(" ");
2186 lock_opr()->print(out); out->print(" ");
2187 if (_scratch->is_valid()) {
2188 _scratch->print(out); out->print(" ");
2189 }
2190 out->print("[lbl:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2191 }
2192
2193 #ifdef ASSERT
2194 void LIR_OpAssert::print_instr(outputStream* out) const {
2195 print_condition(out, condition()); out->print(" ");
2196 in_opr1()->print(out); out->print(" ");
2197 in_opr2()->print(out); out->print(", \"");
2198 out->print("%s", msg()); out->print("\"");
2199 }
2200 #endif
2201
2202
2203 void LIR_OpDelay::print_instr(outputStream* out) const {
2204 _op->print_on(out);
2205 }
2206
2207
2208 // LIR_OpProfileCall
2209 void LIR_OpProfileCall::print_instr(outputStream* out) const {
2210 profiled_method()->name()->print_symbol_on(out);
2211 out->print(".");
2212 profiled_method()->holder()->name()->print_symbol_on(out);
2213 out->print(" @ %d ", profiled_bci());
2214 mdo()->print(out); out->print(" ");
2215 recv()->print(out); out->print(" ");
2216 tmp1()->print(out); out->print(" ");
2217 }
2218
2219 // LIR_OpProfileType
2220 void LIR_OpProfileType::print_instr(outputStream* out) const {
2221 out->print("exact = ");
2222 if (exact_klass() == NULL) {
2223 out->print("unknown");
2224 } else {
2225 exact_klass()->print_name_on(out);
2226 }
2227 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2228 out->print(" ");
2229 mdp()->print(out); out->print(" ");
2230 obj()->print(out); out->print(" ");
2231 tmp()->print(out); out->print(" ");
2232 }
2233
2234 // LIR_OpProfileInlineType
2235 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2236 out->print(" flag = %x ", flag());
2237 mdp()->print(out); out->print(" ");
2238 obj()->print(out); out->print(" ");
2239 tmp()->print(out); out->print(" ");
2240 }
2241
2242 #endif // PRODUCT
2243
2244 // Implementation of LIR_InsertionBuffer
2245
2246 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2247 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2248
2249 int i = number_of_insertion_points() - 1;
2250 if (i < 0 || index_at(i) < index) {
2251 append_new(index, 1);
2252 } else {
2253 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2254 assert(count_at(i) > 0, "check");
2255 set_count_at(i, count_at(i) + 1);
2256 }
2257 _ops.push(op);
2258
2259 DEBUG_ONLY(verify());
2260 }
2261
2262 #ifdef ASSERT
2263 void LIR_InsertionBuffer::verify() {
2264 int sum = 0;
2265 int prev_idx = -1;
2266
2267 for (int i = 0; i < number_of_insertion_points(); i++) {
2268 assert(prev_idx < index_at(i), "index must be ordered ascending");
2269 sum += count_at(i);
2270 }
2271 assert(sum == number_of_ops(), "wrong total sum");
2272 }
2273 #endif