10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "c1/c1_CodeStubs.hpp"
26 #include "c1/c1_InstructionPrinter.hpp"
27 #include "c1/c1_LIR.hpp"
28 #include "c1/c1_LIRAssembler.hpp"
29 #include "c1/c1_ValueStack.hpp"
30 #include "ci/ciInstance.hpp"
31 #include "runtime/safepointMechanism.inline.hpp"
32 #include "runtime/sharedRuntime.hpp"
33 #include "runtime/vm_version.hpp"
34
35 Register LIR_Opr::as_register() const {
36 return FrameMap::cpu_rnr2reg(cpu_regnr());
37 }
38
39 Register LIR_Opr::as_register_lo() const {
40 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
41 }
42
43 Register LIR_Opr::as_register_hi() const {
44 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
45 }
46
47 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
48 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr();
49
269 assert(_ublock != nullptr, "must have old block");
270 _ublock = b;
271 }
272
273 void LIR_OpBranch::negate_cond() {
274 switch (cond()) {
275 case lir_cond_equal: set_cond(lir_cond_notEqual); break;
276 case lir_cond_notEqual: set_cond(lir_cond_equal); break;
277 case lir_cond_less: set_cond(lir_cond_greaterEqual); break;
278 case lir_cond_lessEqual: set_cond(lir_cond_greater); break;
279 case lir_cond_greaterEqual: set_cond(lir_cond_less); break;
280 case lir_cond_greater: set_cond(lir_cond_lessEqual); break;
281 default: ShouldNotReachHere();
282 }
283 }
284
285
286 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
287 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
288 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
289 CodeStub* stub)
290
291 : LIR_Op(code, result, nullptr)
292 , _object(object)
293 , _array(LIR_OprFact::illegalOpr)
294 , _klass(klass)
295 , _tmp1(tmp1)
296 , _tmp2(tmp2)
297 , _tmp3(tmp3)
298 , _info_for_patch(info_for_patch)
299 , _info_for_exception(info_for_exception)
300 , _stub(stub)
301 , _profiled_method(nullptr)
302 , _profiled_bci(-1)
303 , _should_profile(false)
304 , _fast_check(fast_check)
305 {
306 if (code == lir_checkcast) {
307 assert(info_for_exception != nullptr, "checkcast throws exceptions");
308 } else if (code == lir_instanceof) {
309 assert(info_for_exception == nullptr, "instanceof throws no exceptions");
310 } else {
311 ShouldNotReachHere();
312 }
313 }
314
315
316
317 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)
318 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr)
319 , _object(object)
320 , _array(array)
321 , _klass(nullptr)
322 , _tmp1(tmp1)
323 , _tmp2(tmp2)
324 , _tmp3(tmp3)
325 , _info_for_patch(nullptr)
326 , _info_for_exception(info_for_exception)
327 , _stub(nullptr)
328 , _profiled_method(nullptr)
329 , _profiled_bci(-1)
330 , _should_profile(false)
331 , _fast_check(false)
332 {
333 if (code == lir_store_check) {
334 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
335 assert(info_for_exception != nullptr, "store_check throws exceptions");
336 } else {
337 ShouldNotReachHere();
338 }
339 }
340
341
342 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
343 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
344 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
345 , _src(src)
346 , _src_pos(src_pos)
347 , _dst(dst)
348 , _dst_pos(dst_pos)
349 , _length(length)
350 , _tmp(tmp)
351 , _expected_type(expected_type)
352 , _flags(flags) {
353 #if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV) || defined(PPC64)
354 if (expected_type != nullptr && flags == 0) {
355 _stub = nullptr;
356 } else {
357 _stub = new ArrayCopyStub(this);
358 }
359 #else
360 _stub = new ArrayCopyStub(this);
395 // The virtual call for each instruction type is replaced by a big
396 // switch that adds the operands for each instruction
397
398 void LIR_OpVisitState::visit(LIR_Op* op) {
399 // copy information from the LIR_Op
400 reset();
401 set_op(op);
402
403 switch (op->code()) {
404
405 // LIR_Op0
406 case lir_fpop_raw: // result and info always invalid
407 case lir_breakpoint: // result and info always invalid
408 case lir_membar: // result and info always invalid
409 case lir_membar_acquire: // result and info always invalid
410 case lir_membar_release: // result and info always invalid
411 case lir_membar_loadload: // result and info always invalid
412 case lir_membar_storestore: // result and info always invalid
413 case lir_membar_loadstore: // result and info always invalid
414 case lir_membar_storeload: // result and info always invalid
415 case lir_on_spin_wait:
416 {
417 assert(op->as_Op0() != nullptr, "must be");
418 assert(op->_info == nullptr, "info not used by this instruction");
419 assert(op->_result->is_illegal(), "not used");
420 break;
421 }
422
423 case lir_nop: // may have info, result always invalid
424 case lir_std_entry: // may have result, info always invalid
425 case lir_osr_entry: // may have result, info always invalid
426 case lir_get_thread: // may have result, info always invalid
427 {
428 assert(op->as_Op0() != nullptr, "must be");
429 if (op->_info != nullptr) do_info(op->_info);
430 if (op->_result->is_valid()) do_output(op->_result);
431 break;
432 }
433
434
794
795
796 // LIR_OpLock
797 case lir_lock:
798 case lir_unlock: {
799 assert(op->as_OpLock() != nullptr, "must be");
800 LIR_OpLock* opLock = (LIR_OpLock*)op;
801
802 if (opLock->_info) do_info(opLock->_info);
803
804 // TODO: check if these operands really have to be temp
805 // (or if input is sufficient). This may have influence on the oop map!
806 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
807 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
808 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
809
810 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
811 assert(opLock->_result->is_illegal(), "unused");
812
813 do_stub(opLock->_stub);
814
815 break;
816 }
817
818
819 // LIR_OpDelay
820 case lir_delay_slot: {
821 assert(op->as_OpDelay() != nullptr, "must be");
822 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
823
824 visit(opDelay->delay_op());
825 break;
826 }
827
828 // LIR_OpTypeCheck
829 case lir_instanceof:
830 case lir_checkcast:
831 case lir_store_check: {
832 assert(op->as_OpTypeCheck() != nullptr, "must be");
833 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
834
835 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
836 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
837 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
838 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
839 do_temp(opTypeCheck->_object);
840 }
841 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
842 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
843 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
844 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
845 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
846 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
847 break;
848 }
849
850 // LIR_OpCompareAndSwap
851 case lir_cas_long:
852 case lir_cas_obj:
853 case lir_cas_int: {
854 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
855 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
856
857 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
858 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
859 do_temp(opCmpAndSwap->_addr);
860 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
861 do_temp(opCmpAndSwap->_cmp_value);
862 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
863 do_temp(opCmpAndSwap->_new_value);
864 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
865 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
866 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
867
868 break;
869 }
907 case lir_profile_call: {
908 assert(op->as_OpProfileCall() != nullptr, "must be");
909 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
910
911 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
912 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
913 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
914 break;
915 }
916
917 // LIR_OpProfileType:
918 case lir_profile_type: {
919 assert(op->as_OpProfileType() != nullptr, "must be");
920 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
921
922 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
923 do_input(opProfileType->_obj);
924 do_temp(opProfileType->_tmp);
925 break;
926 }
927 default:
928 op->visit(this);
929 }
930 }
931
932 void LIR_Op::visit(LIR_OpVisitState* state) {
933 ShouldNotReachHere();
934 }
935
936 void LIR_OpVisitState::do_stub(CodeStub* stub) {
937 if (stub != nullptr) {
938 stub->visit(this);
939 }
940 }
941
942 XHandlers* LIR_OpVisitState::all_xhandler() {
943 XHandlers* result = nullptr;
944
945 int i;
946 for (i = 0; i < info_count(); i++) {
947 if (info_at(i)->exception_handlers() != nullptr) {
980 !has_slow_case();
981 }
982 #endif
983
984 // LIR_OpReturn
985 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
986 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
987 _stub(nullptr) {
988 if (VM_Version::supports_stack_watermark_barrier()) {
989 _stub = new C1SafepointPollStub();
990 }
991 }
992
993 //---------------------------------------------------
994
995
996 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
997 masm->emit_call(this);
998 }
999
1000 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1001 masm->emit_rtcall(this);
1002 }
1003
1004 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1005 masm->emit_opLabel(this);
1006 }
1007
1008 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1009 masm->emit_arraycopy(this);
1010 ArrayCopyStub* code_stub = stub();
1011 if (code_stub != nullptr) {
1012 masm->append_code_stub(code_stub);
1013 }
1014 }
1015
1016 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1017 masm->emit_updatecrc32(this);
1018 }
1019
1043 masm->append_code_stub(stub());
1044 }
1045 }
1046
1047 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1048 masm->emit_op2(this);
1049 }
1050
1051 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1052 masm->emit_alloc_array(this);
1053 masm->append_code_stub(stub());
1054 }
1055
1056 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1057 masm->emit_opTypeCheck(this);
1058 if (stub()) {
1059 masm->append_code_stub(stub());
1060 }
1061 }
1062
1063 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1064 masm->emit_compare_and_swap(this);
1065 }
1066
1067 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1068 masm->emit_op3(this);
1069 }
1070
1071 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1072 masm->emit_op4(this);
1073 }
1074
1075 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1076 masm->emit_lock(this);
1077 if (stub()) {
1078 masm->append_code_stub(stub());
1079 }
1080 }
1081
1082 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1083 masm->emit_load_klass(this);
1084 }
1085
1086 #ifdef ASSERT
1087 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1088 masm->emit_assert(this);
1089 }
1090 #endif
1091
1092 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1093 masm->emit_delay(this);
1094 }
1095
1096 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1097 masm->emit_profile_call(this);
1098 }
1099
1100 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1101 masm->emit_profile_type(this);
1102 }
1103
1104 // LIR_List
1105 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1106 : _operations(8)
1107 , _compilation(compilation)
1108 #ifndef PRODUCT
1109 , _block(block)
1110 #endif
1111 #ifdef ASSERT
1112 , _file(nullptr)
1113 , _line(0)
1114 #endif
1115 #ifdef RISCV
1116 , _cmp_opr1(LIR_OprFact::illegalOpr)
1117 , _cmp_opr2(LIR_OprFact::illegalOpr)
1118 #endif
1119 { }
1120
1121
1122 #ifdef ASSERT
1123 void LIR_List::set_file_and_line(const char * file, int line) {
1359 reg,
1360 LIR_OprFact::address(addr),
1361 info));
1362 }
1363
1364 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1365 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1366 append(new LIR_OpAllocObj(
1367 klass,
1368 dst,
1369 t1,
1370 t2,
1371 t3,
1372 t4,
1373 header_size,
1374 object_size,
1375 init_check,
1376 stub));
1377 }
1378
1379 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub, bool zero_array) {
1380 append(new LIR_OpAllocArray(
1381 klass,
1382 len,
1383 dst,
1384 t1,
1385 t2,
1386 t3,
1387 t4,
1388 type,
1389 stub,
1390 zero_array));
1391 }
1392
1393 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1394 append(new LIR_Op2(
1395 lir_shl,
1396 value,
1397 count,
1398 dst,
1399 tmp));
1400 }
1401
1402 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1403 append(new LIR_Op2(
1404 lir_shr,
1405 value,
1406 count,
1407 dst,
1408 tmp));
1409 }
1410
1411
1412 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1413 append(new LIR_Op2(
1414 lir_ushr,
1415 value,
1416 count,
1417 dst,
1418 tmp));
1419 }
1420
1421 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1422 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1423 left,
1424 right,
1425 dst));
1426 }
1427
1428 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1429 append(new LIR_OpLock(
1430 lir_lock,
1431 hdr,
1432 obj,
1433 lock,
1434 scratch,
1435 stub,
1436 info));
1437 }
1438
1439 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1440 append(new LIR_OpLock(
1441 lir_unlock,
1442 hdr,
1443 obj,
1444 lock,
1445 scratch,
1446 stub,
1447 nullptr));
1448 }
1449
1450
1451 void check_LIR() {
1452 // cannot do the proper checking as PRODUCT and other modes return different results
1453 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1454 }
1455
1456
1457
1458 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1459 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1460 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1461 ciMethod* profiled_method, int profiled_bci) {
1462 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1463 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1464 if (profiled_method != nullptr) {
1465 c->set_profiled_method(profiled_method);
1466 c->set_profiled_bci(profiled_bci);
1467 c->set_should_profile(true);
1468 }
1469 append(c);
1470 }
1471
1472 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) {
1473 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1474 if (profiled_method != nullptr) {
1475 c->set_profiled_method(profiled_method);
1476 c->set_profiled_bci(profiled_bci);
1477 c->set_should_profile(true);
1478 }
1479 append(c);
1480 }
1481
1482
1483 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1484 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1485 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1486 if (profiled_method != nullptr) {
1487 c->set_profiled_method(profiled_method);
1488 c->set_profiled_bci(profiled_bci);
1489 c->set_should_profile(true);
1490 }
1491 append(c);
1492 }
1493
1494 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1495 if (deoptimize_on_null) {
1496 // Emit an explicit null check and deoptimize if opr is null
1497 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1498 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1499 branch(lir_cond_equal, deopt);
1500 } else {
1501 // Emit an implicit null check
1502 append(new LIR_Op1(lir_null_check, opr, info));
1503 }
1504 }
1505
1506 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1507 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1508 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1509 }
1510
1511 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1512 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1513 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1514 }
1515
1516 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1517 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1518 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1519 }
1520
1521
1522 #ifdef PRODUCT
1523
1524 void print_LIR(BlockList* blocks) {
1525 }
1702
1703 const char * LIR_Op::name() const {
1704 const char* s = nullptr;
1705 switch(code()) {
1706 // LIR_Op0
1707 case lir_membar: s = "membar"; break;
1708 case lir_membar_acquire: s = "membar_acquire"; break;
1709 case lir_membar_release: s = "membar_release"; break;
1710 case lir_membar_loadload: s = "membar_loadload"; break;
1711 case lir_membar_storestore: s = "membar_storestore"; break;
1712 case lir_membar_loadstore: s = "membar_loadstore"; break;
1713 case lir_membar_storeload: s = "membar_storeload"; break;
1714 case lir_label: s = "label"; break;
1715 case lir_nop: s = "nop"; break;
1716 case lir_on_spin_wait: s = "on_spin_wait"; break;
1717 case lir_std_entry: s = "std_entry"; break;
1718 case lir_osr_entry: s = "osr_entry"; break;
1719 case lir_fpop_raw: s = "fpop_raw"; break;
1720 case lir_breakpoint: s = "breakpoint"; break;
1721 case lir_get_thread: s = "get_thread"; break;
1722 // LIR_Op1
1723 case lir_fxch: s = "fxch"; break;
1724 case lir_fld: s = "fld"; break;
1725 case lir_push: s = "push"; break;
1726 case lir_pop: s = "pop"; break;
1727 case lir_null_check: s = "null_check"; break;
1728 case lir_return: s = "return"; break;
1729 case lir_safepoint: s = "safepoint"; break;
1730 case lir_leal: s = "leal"; break;
1731 case lir_branch: s = "branch"; break;
1732 case lir_cond_float_branch: s = "flt_cond_br"; break;
1733 case lir_move: s = "move"; break;
1734 case lir_roundfp: s = "roundfp"; break;
1735 case lir_abs: s = "abs"; break;
1736 case lir_neg: s = "neg"; break;
1737 case lir_sqrt: s = "sqrt"; break;
1738 case lir_f2hf: s = "f2hf"; break;
1739 case lir_hf2f: s = "hf2f"; break;
1740 case lir_rtcall: s = "rtcall"; break;
1741 case lir_throw: s = "throw"; break;
1770 // LIR_Op4
1771 case lir_cmove: s = "cmove"; break;
1772 // LIR_OpJavaCall
1773 case lir_static_call: s = "static"; break;
1774 case lir_optvirtual_call: s = "optvirtual"; break;
1775 case lir_icvirtual_call: s = "icvirtual"; break;
1776 case lir_dynamic_call: s = "dynamic"; break;
1777 // LIR_OpArrayCopy
1778 case lir_arraycopy: s = "arraycopy"; break;
1779 // LIR_OpUpdateCRC32
1780 case lir_updatecrc32: s = "updatecrc32"; break;
1781 // LIR_OpLock
1782 case lir_lock: s = "lock"; break;
1783 case lir_unlock: s = "unlock"; break;
1784 // LIR_OpDelay
1785 case lir_delay_slot: s = "delay"; break;
1786 // LIR_OpTypeCheck
1787 case lir_instanceof: s = "instanceof"; break;
1788 case lir_checkcast: s = "checkcast"; break;
1789 case lir_store_check: s = "store_check"; break;
1790 // LIR_OpCompareAndSwap
1791 case lir_cas_long: s = "cas_long"; break;
1792 case lir_cas_obj: s = "cas_obj"; break;
1793 case lir_cas_int: s = "cas_int"; break;
1794 // LIR_OpProfileCall
1795 case lir_profile_call: s = "profile_call"; break;
1796 // LIR_OpProfileType
1797 case lir_profile_type: s = "profile_type"; break;
1798 // LIR_OpAssert
1799 #ifdef ASSERT
1800 case lir_assert: s = "assert"; break;
1801 #endif
1802 case lir_none: ShouldNotReachHere();break;
1803 default: s = "illegal_op"; break;
1804 }
1805 return s;
1806 }
1807
1808 // LIR_OpJavaCall
1809 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1810 out->print("call: ");
1811 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1812 if (receiver()->is_valid()) {
1813 out->print(" [recv: "); receiver()->print(out); out->print("]");
1814 }
1815 if (result_opr()->is_valid()) {
1816 out->print(" [result: "); result_opr()->print(out); out->print("]");
1817 }
2009 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2010 }
2011
2012
2013 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2014 object()->print(out); out->print(" ");
2015 if (code() == lir_store_check) {
2016 array()->print(out); out->print(" ");
2017 }
2018 if (code() != lir_store_check) {
2019 klass()->print_name_on(out); out->print(" ");
2020 if (fast_check()) out->print("fast_check ");
2021 }
2022 tmp1()->print(out); out->print(" ");
2023 tmp2()->print(out); out->print(" ");
2024 tmp3()->print(out); out->print(" ");
2025 result_opr()->print(out); out->print(" ");
2026 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2027 }
2028
2029
2030 // LIR_Op3
2031 void LIR_Op3::print_instr(outputStream* out) const {
2032 in_opr1()->print(out); out->print(" ");
2033 in_opr2()->print(out); out->print(" ");
2034 in_opr3()->print(out); out->print(" ");
2035 result_opr()->print(out);
2036 }
2037
2038 // LIR_Op4
2039 void LIR_Op4::print_instr(outputStream* out) const {
2040 print_condition(out, condition()); out->print(" ");
2041 in_opr1()->print(out); out->print(" ");
2042 in_opr2()->print(out); out->print(" ");
2043 in_opr3()->print(out); out->print(" ");
2044 in_opr4()->print(out); out->print(" ");
2045 result_opr()->print(out);
2046 }
2047
2048 void LIR_OpLock::print_instr(outputStream* out) const {
2084 mdo()->print(out); out->print(" ");
2085 recv()->print(out); out->print(" ");
2086 tmp1()->print(out); out->print(" ");
2087 }
2088
2089 // LIR_OpProfileType
2090 void LIR_OpProfileType::print_instr(outputStream* out) const {
2091 out->print("exact = ");
2092 if (exact_klass() == nullptr) {
2093 out->print("unknown");
2094 } else {
2095 exact_klass()->print_name_on(out);
2096 }
2097 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2098 out->print(" ");
2099 mdp()->print(out); out->print(" ");
2100 obj()->print(out); out->print(" ");
2101 tmp()->print(out); out->print(" ");
2102 }
2103
2104 #endif // PRODUCT
2105
2106 // Implementation of LIR_InsertionBuffer
2107
2108 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2109 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2110
2111 int i = number_of_insertion_points() - 1;
2112 if (i < 0 || index_at(i) < index) {
2113 append_new(index, 1);
2114 } else {
2115 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2116 assert(count_at(i) > 0, "check");
2117 set_count_at(i, count_at(i) + 1);
2118 }
2119 _ops.push(op);
2120
2121 DEBUG_ONLY(verify());
2122 }
2123
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #include "c1/c1_CodeStubs.hpp"
26 #include "c1/c1_InstructionPrinter.hpp"
27 #include "c1/c1_LIR.hpp"
28 #include "c1/c1_LIRAssembler.hpp"
29 #include "c1/c1_ValueStack.hpp"
30 #include "ci/ciInlineKlass.hpp"
31 #include "ci/ciInstance.hpp"
32 #include "runtime/safepointMechanism.inline.hpp"
33 #include "runtime/sharedRuntime.hpp"
34 #include "runtime/vm_version.hpp"
35
36 Register LIR_Opr::as_register() const {
37 return FrameMap::cpu_rnr2reg(cpu_regnr());
38 }
39
40 Register LIR_Opr::as_register_lo() const {
41 return FrameMap::cpu_rnr2reg(cpu_regnrLo());
42 }
43
44 Register LIR_Opr::as_register_hi() const {
45 return FrameMap::cpu_rnr2reg(cpu_regnrHi());
46 }
47
48 LIR_Opr LIR_OprFact::illegalOpr = LIR_OprFact::illegal();
49 LIR_Opr LIR_OprFact::nullOpr = LIR_Opr();
50
270 assert(_ublock != nullptr, "must have old block");
271 _ublock = b;
272 }
273
274 void LIR_OpBranch::negate_cond() {
275 switch (cond()) {
276 case lir_cond_equal: set_cond(lir_cond_notEqual); break;
277 case lir_cond_notEqual: set_cond(lir_cond_equal); break;
278 case lir_cond_less: set_cond(lir_cond_greaterEqual); break;
279 case lir_cond_lessEqual: set_cond(lir_cond_greater); break;
280 case lir_cond_greaterEqual: set_cond(lir_cond_less); break;
281 case lir_cond_greater: set_cond(lir_cond_lessEqual); break;
282 default: ShouldNotReachHere();
283 }
284 }
285
286
287 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr result, LIR_Opr object, ciKlass* klass,
288 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
289 bool fast_check, CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch,
290 CodeStub* stub, bool need_null_check)
291
292 : LIR_Op(code, result, nullptr)
293 , _object(object)
294 , _array(LIR_OprFact::illegalOpr)
295 , _klass(klass)
296 , _tmp1(tmp1)
297 , _tmp2(tmp2)
298 , _tmp3(tmp3)
299 , _info_for_patch(info_for_patch)
300 , _info_for_exception(info_for_exception)
301 , _stub(stub)
302 , _profiled_method(nullptr)
303 , _profiled_bci(-1)
304 , _should_profile(false)
305 , _fast_check(fast_check)
306 , _need_null_check(need_null_check)
307 {
308 if (code == lir_checkcast) {
309 assert(info_for_exception != nullptr, "checkcast throws exceptions");
310 } else if (code == lir_instanceof) {
311 assert(info_for_exception == nullptr, "instanceof throws no exceptions");
312 } else {
313 ShouldNotReachHere();
314 }
315 }
316
317
318
319 LIR_OpTypeCheck::LIR_OpTypeCheck(LIR_Code code, LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, CodeEmitInfo* info_for_exception)
320 : LIR_Op(code, LIR_OprFact::illegalOpr, nullptr)
321 , _object(object)
322 , _array(array)
323 , _klass(nullptr)
324 , _tmp1(tmp1)
325 , _tmp2(tmp2)
326 , _tmp3(tmp3)
327 , _info_for_patch(nullptr)
328 , _info_for_exception(info_for_exception)
329 , _stub(nullptr)
330 , _profiled_method(nullptr)
331 , _profiled_bci(-1)
332 , _should_profile(false)
333 , _fast_check(false)
334 , _need_null_check(true)
335 {
336 if (code == lir_store_check) {
337 _stub = new ArrayStoreExceptionStub(object, info_for_exception);
338 assert(info_for_exception != nullptr, "store_check throws exceptions");
339 } else {
340 ShouldNotReachHere();
341 }
342 }
343
344 LIR_OpFlattenedArrayCheck::LIR_OpFlattenedArrayCheck(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub)
345 : LIR_Op(lir_flat_array_check, LIR_OprFact::illegalOpr, nullptr)
346 , _array(array)
347 , _value(value)
348 , _tmp(tmp)
349 , _stub(stub) {}
350
351
352 LIR_OpNullFreeArrayCheck::LIR_OpNullFreeArrayCheck(LIR_Opr array, LIR_Opr tmp)
353 : LIR_Op(lir_null_free_array_check, LIR_OprFact::illegalOpr, nullptr)
354 , _array(array)
355 , _tmp(tmp) {}
356
357
358 LIR_OpSubstitutabilityCheck::LIR_OpSubstitutabilityCheck(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
359 LIR_Opr tmp1, LIR_Opr tmp2,
360 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
361 CodeEmitInfo* info, CodeStub* stub)
362 : LIR_Op(lir_substitutability_check, result, info)
363 , _left(left)
364 , _right(right)
365 , _equal_result(equal_result)
366 , _not_equal_result(not_equal_result)
367 , _tmp1(tmp1)
368 , _tmp2(tmp2)
369 , _left_klass(left_klass)
370 , _right_klass(right_klass)
371 , _left_klass_op(left_klass_op)
372 , _right_klass_op(right_klass_op)
373 , _stub(stub) {}
374
375
376 LIR_OpArrayCopy::LIR_OpArrayCopy(LIR_Opr src, LIR_Opr src_pos, LIR_Opr dst, LIR_Opr dst_pos, LIR_Opr length,
377 LIR_Opr tmp, ciArrayKlass* expected_type, int flags, CodeEmitInfo* info)
378 : LIR_Op(lir_arraycopy, LIR_OprFact::illegalOpr, info)
379 , _src(src)
380 , _src_pos(src_pos)
381 , _dst(dst)
382 , _dst_pos(dst_pos)
383 , _length(length)
384 , _tmp(tmp)
385 , _expected_type(expected_type)
386 , _flags(flags) {
387 #if defined(X86) || defined(AARCH64) || defined(S390) || defined(RISCV) || defined(PPC64)
388 if (expected_type != nullptr && flags == 0) {
389 _stub = nullptr;
390 } else {
391 _stub = new ArrayCopyStub(this);
392 }
393 #else
394 _stub = new ArrayCopyStub(this);
429 // The virtual call for each instruction type is replaced by a big
430 // switch that adds the operands for each instruction
431
432 void LIR_OpVisitState::visit(LIR_Op* op) {
433 // copy information from the LIR_Op
434 reset();
435 set_op(op);
436
437 switch (op->code()) {
438
439 // LIR_Op0
440 case lir_fpop_raw: // result and info always invalid
441 case lir_breakpoint: // result and info always invalid
442 case lir_membar: // result and info always invalid
443 case lir_membar_acquire: // result and info always invalid
444 case lir_membar_release: // result and info always invalid
445 case lir_membar_loadload: // result and info always invalid
446 case lir_membar_storestore: // result and info always invalid
447 case lir_membar_loadstore: // result and info always invalid
448 case lir_membar_storeload: // result and info always invalid
449 case lir_check_orig_pc: // result and info always invalid
450 case lir_on_spin_wait:
451 {
452 assert(op->as_Op0() != nullptr, "must be");
453 assert(op->_info == nullptr, "info not used by this instruction");
454 assert(op->_result->is_illegal(), "not used");
455 break;
456 }
457
458 case lir_nop: // may have info, result always invalid
459 case lir_std_entry: // may have result, info always invalid
460 case lir_osr_entry: // may have result, info always invalid
461 case lir_get_thread: // may have result, info always invalid
462 {
463 assert(op->as_Op0() != nullptr, "must be");
464 if (op->_info != nullptr) do_info(op->_info);
465 if (op->_result->is_valid()) do_output(op->_result);
466 break;
467 }
468
469
829
830
831 // LIR_OpLock
832 case lir_lock:
833 case lir_unlock: {
834 assert(op->as_OpLock() != nullptr, "must be");
835 LIR_OpLock* opLock = (LIR_OpLock*)op;
836
837 if (opLock->_info) do_info(opLock->_info);
838
839 // TODO: check if these operands really have to be temp
840 // (or if input is sufficient). This may have influence on the oop map!
841 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
842 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
843 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
844
845 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
846 assert(opLock->_result->is_illegal(), "unused");
847
848 do_stub(opLock->_stub);
849 do_stub(opLock->_throw_ie_stub);
850
851 break;
852 }
853
854
855 // LIR_OpDelay
856 case lir_delay_slot: {
857 assert(op->as_OpDelay() != nullptr, "must be");
858 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
859
860 visit(opDelay->delay_op());
861 break;
862 }
863
864 // LIR_OpTypeCheck
865 case lir_instanceof:
866 case lir_checkcast:
867 case lir_store_check: {
868 assert(op->as_OpTypeCheck() != nullptr, "must be");
869 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
870
871 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
872 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
873 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
874 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
875 do_temp(opTypeCheck->_object);
876 }
877 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
878 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
879 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
880 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
881 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
882 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
883 break;
884 }
885
886 // LIR_OpFlattenedArrayCheck
887 case lir_flat_array_check: {
888 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
889 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
890
891 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
892 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
893 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
894
895 do_stub(opFlattenedArrayCheck->_stub);
896
897 break;
898 }
899
900 // LIR_OpNullFreeArrayCheck
901 case lir_null_free_array_check: {
902 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
903 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
904
905 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
906 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
907 break;
908 }
909
910 // LIR_OpSubstitutabilityCheck
911 case lir_substitutability_check: {
912 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
913 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
914 do_input(opSubstitutabilityCheck->_left);
915 do_temp (opSubstitutabilityCheck->_left);
916 do_input(opSubstitutabilityCheck->_right);
917 do_temp (opSubstitutabilityCheck->_right);
918 do_input(opSubstitutabilityCheck->_equal_result);
919 do_temp (opSubstitutabilityCheck->_equal_result);
920 do_input(opSubstitutabilityCheck->_not_equal_result);
921 do_temp (opSubstitutabilityCheck->_not_equal_result);
922 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
923 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
924 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
925 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
926 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
927
928 do_info(opSubstitutabilityCheck->_info);
929 do_stub(opSubstitutabilityCheck->_stub);
930 break;
931 }
932
933 // LIR_OpCompareAndSwap
934 case lir_cas_long:
935 case lir_cas_obj:
936 case lir_cas_int: {
937 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
938 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
939
940 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
941 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
942 do_temp(opCmpAndSwap->_addr);
943 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
944 do_temp(opCmpAndSwap->_cmp_value);
945 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
946 do_temp(opCmpAndSwap->_new_value);
947 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
948 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
949 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
950
951 break;
952 }
990 case lir_profile_call: {
991 assert(op->as_OpProfileCall() != nullptr, "must be");
992 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
993
994 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
995 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
996 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
997 break;
998 }
999
1000 // LIR_OpProfileType:
1001 case lir_profile_type: {
1002 assert(op->as_OpProfileType() != nullptr, "must be");
1003 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
1004
1005 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
1006 do_input(opProfileType->_obj);
1007 do_temp(opProfileType->_tmp);
1008 break;
1009 }
1010
1011 // LIR_OpProfileInlineType:
1012 case lir_profile_inline_type: {
1013 assert(op->as_OpProfileInlineType() != nullptr, "must be");
1014 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
1015
1016 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1017 do_input(opProfileInlineType->_obj);
1018 do_temp(opProfileInlineType->_tmp);
1019 break;
1020 }
1021 default:
1022 op->visit(this);
1023 }
1024 }
1025
1026 void LIR_Op::visit(LIR_OpVisitState* state) {
1027 ShouldNotReachHere();
1028 }
1029
1030 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1031 if (stub != nullptr) {
1032 stub->visit(this);
1033 }
1034 }
1035
1036 XHandlers* LIR_OpVisitState::all_xhandler() {
1037 XHandlers* result = nullptr;
1038
1039 int i;
1040 for (i = 0; i < info_count(); i++) {
1041 if (info_at(i)->exception_handlers() != nullptr) {
1074 !has_slow_case();
1075 }
1076 #endif
1077
1078 // LIR_OpReturn
1079 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1080 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1081 _stub(nullptr) {
1082 if (VM_Version::supports_stack_watermark_barrier()) {
1083 _stub = new C1SafepointPollStub();
1084 }
1085 }
1086
1087 //---------------------------------------------------
1088
1089
1090 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1091 masm->emit_call(this);
1092 }
1093
1094 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1095 ciType* return_type = method()->return_type();
1096 if (InlineTypeReturnedAsFields) {
1097 if (return_type->is_inlinetype()) {
1098 ciInlineKlass* vk = return_type->as_inline_klass();
1099 if (vk->can_be_returned_as_fields()) {
1100 if (vk_ret != nullptr) {
1101 *vk_ret = vk;
1102 }
1103 return true;
1104 }
1105 } else if (return_type->is_instance_klass() &&
1106 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1107 StressCallingConvention)) {
1108 // An inline type might be returned from the call but we don't know its type.
1109 // This can happen with method handle intrinsics or when the return type is
1110 // not loaded (method holder is not loaded or preload attribute is missing).
1111 // If an inline type is returned, we either get an oop to a buffer and nothing
1112 // needs to be done or one of the values being returned is the klass of the
1113 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1114 // type instance of that type and initialize it with the fields values being
1115 // returned in other registers.
1116 return true;
1117 }
1118 }
1119 return false;
1120 }
1121
1122 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1123 masm->emit_rtcall(this);
1124 }
1125
1126 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1127 masm->emit_opLabel(this);
1128 }
1129
1130 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1131 masm->emit_arraycopy(this);
1132 ArrayCopyStub* code_stub = stub();
1133 if (code_stub != nullptr) {
1134 masm->append_code_stub(code_stub);
1135 }
1136 }
1137
1138 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1139 masm->emit_updatecrc32(this);
1140 }
1141
1165 masm->append_code_stub(stub());
1166 }
1167 }
1168
1169 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1170 masm->emit_op2(this);
1171 }
1172
1173 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1174 masm->emit_alloc_array(this);
1175 masm->append_code_stub(stub());
1176 }
1177
1178 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1179 masm->emit_opTypeCheck(this);
1180 if (stub()) {
1181 masm->append_code_stub(stub());
1182 }
1183 }
1184
1185 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1186 masm->emit_opFlattenedArrayCheck(this);
1187 if (stub() != nullptr) {
1188 masm->append_code_stub(stub());
1189 }
1190 }
1191
1192 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1193 masm->emit_opNullFreeArrayCheck(this);
1194 }
1195
1196 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1197 masm->emit_opSubstitutabilityCheck(this);
1198 if (stub() != nullptr) {
1199 masm->append_code_stub(stub());
1200 }
1201 }
1202
1203 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1204 masm->emit_compare_and_swap(this);
1205 }
1206
1207 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1208 masm->emit_op3(this);
1209 }
1210
1211 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1212 masm->emit_op4(this);
1213 }
1214
1215 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1216 masm->emit_lock(this);
1217 if (stub()) {
1218 masm->append_code_stub(stub());
1219 }
1220 if (throw_ie_stub()) {
1221 masm->append_code_stub(throw_ie_stub());
1222 }
1223 }
1224
1225 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1226 masm->emit_load_klass(this);
1227 }
1228
1229 #ifdef ASSERT
1230 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1231 masm->emit_assert(this);
1232 }
1233 #endif
1234
1235 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1236 masm->emit_delay(this);
1237 }
1238
1239 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1240 masm->emit_profile_call(this);
1241 }
1242
1243 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1244 masm->emit_profile_type(this);
1245 }
1246
1247 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1248 masm->emit_profile_inline_type(this);
1249 }
1250
1251 // LIR_List
1252 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1253 : _operations(8)
1254 , _compilation(compilation)
1255 #ifndef PRODUCT
1256 , _block(block)
1257 #endif
1258 #ifdef ASSERT
1259 , _file(nullptr)
1260 , _line(0)
1261 #endif
1262 #ifdef RISCV
1263 , _cmp_opr1(LIR_OprFact::illegalOpr)
1264 , _cmp_opr2(LIR_OprFact::illegalOpr)
1265 #endif
1266 { }
1267
1268
1269 #ifdef ASSERT
1270 void LIR_List::set_file_and_line(const char * file, int line) {
1506 reg,
1507 LIR_OprFact::address(addr),
1508 info));
1509 }
1510
1511 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1512 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1513 append(new LIR_OpAllocObj(
1514 klass,
1515 dst,
1516 t1,
1517 t2,
1518 t3,
1519 t4,
1520 header_size,
1521 object_size,
1522 init_check,
1523 stub));
1524 }
1525
1526 void LIR_List::allocate_array(LIR_Opr dst, LIR_Opr len, LIR_Opr t1,LIR_Opr t2, LIR_Opr t3,LIR_Opr t4, BasicType type, LIR_Opr klass, CodeStub* stub, bool zero_array, bool is_null_free) {
1527 append(new LIR_OpAllocArray(
1528 klass,
1529 len,
1530 dst,
1531 t1,
1532 t2,
1533 t3,
1534 t4,
1535 type,
1536 stub,
1537 zero_array,
1538 is_null_free));
1539 }
1540
1541 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1542 append(new LIR_Op2(
1543 lir_shl,
1544 value,
1545 count,
1546 dst,
1547 tmp));
1548 }
1549
1550 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1551 append(new LIR_Op2(
1552 lir_shr,
1553 value,
1554 count,
1555 dst,
1556 tmp));
1557 }
1558
1559
1560 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1561 append(new LIR_Op2(
1562 lir_ushr,
1563 value,
1564 count,
1565 dst,
1566 tmp));
1567 }
1568
1569 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1570 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1571 left,
1572 right,
1573 dst));
1574 }
1575
1576 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info, CodeStub* throw_ie_stub) {
1577 append(new LIR_OpLock(
1578 lir_lock,
1579 hdr,
1580 obj,
1581 lock,
1582 scratch,
1583 stub,
1584 info,
1585 throw_ie_stub));
1586 }
1587
1588 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1589 append(new LIR_OpLock(
1590 lir_unlock,
1591 hdr,
1592 obj,
1593 lock,
1594 scratch,
1595 stub,
1596 nullptr));
1597 }
1598
1599
1600 void check_LIR() {
1601 // cannot do the proper checking as PRODUCT and other modes return different results
1602 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1603 }
1604
1605
1606
1607 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1608 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1609 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1610 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1611 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1612 // on the object.
1613 bool need_null_check = !is_null_free;
1614 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1615 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1616 need_null_check);
1617 if (profiled_method != nullptr) {
1618 c->set_profiled_method(profiled_method);
1619 c->set_profiled_bci(profiled_bci);
1620 c->set_should_profile(true);
1621 }
1622 append(c);
1623 }
1624
1625 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) {
1626 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1627 if (profiled_method != nullptr) {
1628 c->set_profiled_method(profiled_method);
1629 c->set_profiled_bci(profiled_bci);
1630 c->set_should_profile(true);
1631 }
1632 append(c);
1633 }
1634
1635
1636 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1637 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1638 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1639 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1640 if (profiled_method != nullptr) {
1641 c->set_profiled_method(profiled_method);
1642 c->set_profiled_bci(profiled_bci);
1643 c->set_should_profile(true);
1644 }
1645 append(c);
1646 }
1647
1648 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1649 if (deoptimize_on_null) {
1650 // Emit an explicit null check and deoptimize if opr is null
1651 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1652 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1653 branch(lir_cond_equal, deopt);
1654 } else {
1655 // Emit an implicit null check
1656 append(new LIR_Op1(lir_null_check, opr, info));
1657 }
1658 }
1659
1660 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1661 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1662 append(c);
1663 }
1664
1665 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1666 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1667 append(c);
1668 }
1669
1670 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1671 LIR_Opr tmp1, LIR_Opr tmp2,
1672 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1673 CodeEmitInfo* info, CodeStub* stub) {
1674 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1675 tmp1, tmp2,
1676 left_klass, right_klass, left_klass_op, right_klass_op,
1677 info, stub);
1678 append(c);
1679 }
1680
1681 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1682 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1683 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1684 }
1685
1686 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1687 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1688 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1689 }
1690
1691 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1692 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1693 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1694 }
1695
1696
1697 #ifdef PRODUCT
1698
1699 void print_LIR(BlockList* blocks) {
1700 }
1877
1878 const char * LIR_Op::name() const {
1879 const char* s = nullptr;
1880 switch(code()) {
1881 // LIR_Op0
1882 case lir_membar: s = "membar"; break;
1883 case lir_membar_acquire: s = "membar_acquire"; break;
1884 case lir_membar_release: s = "membar_release"; break;
1885 case lir_membar_loadload: s = "membar_loadload"; break;
1886 case lir_membar_storestore: s = "membar_storestore"; break;
1887 case lir_membar_loadstore: s = "membar_loadstore"; break;
1888 case lir_membar_storeload: s = "membar_storeload"; break;
1889 case lir_label: s = "label"; break;
1890 case lir_nop: s = "nop"; break;
1891 case lir_on_spin_wait: s = "on_spin_wait"; break;
1892 case lir_std_entry: s = "std_entry"; break;
1893 case lir_osr_entry: s = "osr_entry"; break;
1894 case lir_fpop_raw: s = "fpop_raw"; break;
1895 case lir_breakpoint: s = "breakpoint"; break;
1896 case lir_get_thread: s = "get_thread"; break;
1897 case lir_check_orig_pc: s = "check_orig_pc"; break;
1898 // LIR_Op1
1899 case lir_fxch: s = "fxch"; break;
1900 case lir_fld: s = "fld"; break;
1901 case lir_push: s = "push"; break;
1902 case lir_pop: s = "pop"; break;
1903 case lir_null_check: s = "null_check"; break;
1904 case lir_return: s = "return"; break;
1905 case lir_safepoint: s = "safepoint"; break;
1906 case lir_leal: s = "leal"; break;
1907 case lir_branch: s = "branch"; break;
1908 case lir_cond_float_branch: s = "flt_cond_br"; break;
1909 case lir_move: s = "move"; break;
1910 case lir_roundfp: s = "roundfp"; break;
1911 case lir_abs: s = "abs"; break;
1912 case lir_neg: s = "neg"; break;
1913 case lir_sqrt: s = "sqrt"; break;
1914 case lir_f2hf: s = "f2hf"; break;
1915 case lir_hf2f: s = "hf2f"; break;
1916 case lir_rtcall: s = "rtcall"; break;
1917 case lir_throw: s = "throw"; break;
1946 // LIR_Op4
1947 case lir_cmove: s = "cmove"; break;
1948 // LIR_OpJavaCall
1949 case lir_static_call: s = "static"; break;
1950 case lir_optvirtual_call: s = "optvirtual"; break;
1951 case lir_icvirtual_call: s = "icvirtual"; break;
1952 case lir_dynamic_call: s = "dynamic"; break;
1953 // LIR_OpArrayCopy
1954 case lir_arraycopy: s = "arraycopy"; break;
1955 // LIR_OpUpdateCRC32
1956 case lir_updatecrc32: s = "updatecrc32"; break;
1957 // LIR_OpLock
1958 case lir_lock: s = "lock"; break;
1959 case lir_unlock: s = "unlock"; break;
1960 // LIR_OpDelay
1961 case lir_delay_slot: s = "delay"; break;
1962 // LIR_OpTypeCheck
1963 case lir_instanceof: s = "instanceof"; break;
1964 case lir_checkcast: s = "checkcast"; break;
1965 case lir_store_check: s = "store_check"; break;
1966 // LIR_OpFlattenedArrayCheck
1967 case lir_flat_array_check: s = "flat_array_check"; break;
1968 // LIR_OpNullFreeArrayCheck
1969 case lir_null_free_array_check: s = "null_free_array_check"; break;
1970 // LIR_OpSubstitutabilityCheck
1971 case lir_substitutability_check: s = "substitutability_check"; break;
1972 // LIR_OpCompareAndSwap
1973 case lir_cas_long: s = "cas_long"; break;
1974 case lir_cas_obj: s = "cas_obj"; break;
1975 case lir_cas_int: s = "cas_int"; break;
1976 // LIR_OpProfileCall
1977 case lir_profile_call: s = "profile_call"; break;
1978 // LIR_OpProfileType
1979 case lir_profile_type: s = "profile_type"; break;
1980 // LIR_OpProfileInlineType
1981 case lir_profile_inline_type: s = "profile_inline_type"; break;
1982 // LIR_OpAssert
1983 #ifdef ASSERT
1984 case lir_assert: s = "assert"; break;
1985 #endif
1986 case lir_none: ShouldNotReachHere();break;
1987 default: s = "illegal_op"; break;
1988 }
1989 return s;
1990 }
1991
1992 // LIR_OpJavaCall
1993 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1994 out->print("call: ");
1995 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1996 if (receiver()->is_valid()) {
1997 out->print(" [recv: "); receiver()->print(out); out->print("]");
1998 }
1999 if (result_opr()->is_valid()) {
2000 out->print(" [result: "); result_opr()->print(out); out->print("]");
2001 }
2193 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2194 }
2195
2196
2197 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2198 object()->print(out); out->print(" ");
2199 if (code() == lir_store_check) {
2200 array()->print(out); out->print(" ");
2201 }
2202 if (code() != lir_store_check) {
2203 klass()->print_name_on(out); out->print(" ");
2204 if (fast_check()) out->print("fast_check ");
2205 }
2206 tmp1()->print(out); out->print(" ");
2207 tmp2()->print(out); out->print(" ");
2208 tmp3()->print(out); out->print(" ");
2209 result_opr()->print(out); out->print(" ");
2210 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2211 }
2212
2213 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2214 array()->print(out); out->print(" ");
2215 value()->print(out); out->print(" ");
2216 tmp()->print(out); out->print(" ");
2217 if (stub() != nullptr) {
2218 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2219 }
2220 }
2221
2222 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2223 array()->print(out); out->print(" ");
2224 tmp()->print(out); out->print(" ");
2225 }
2226
2227 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2228 result_opr()->print(out); out->print(" ");
2229 left()->print(out); out->print(" ");
2230 right()->print(out); out->print(" ");
2231 equal_result()->print(out); out->print(" ");
2232 not_equal_result()->print(out); out->print(" ");
2233 tmp1()->print(out); out->print(" ");
2234 tmp2()->print(out); out->print(" ");
2235 if (left_klass() == nullptr) {
2236 out->print("unknown ");
2237 } else {
2238 left_klass()->print(out); out->print(" ");
2239 }
2240 if (right_klass() == nullptr) {
2241 out->print("unknown ");
2242 } else {
2243 right_klass()->print(out); out->print(" ");
2244 }
2245 left_klass_op()->print(out); out->print(" ");
2246 right_klass_op()->print(out); out->print(" ");
2247 if (stub() != nullptr) {
2248 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2249 }
2250 }
2251
2252 // LIR_Op3
2253 void LIR_Op3::print_instr(outputStream* out) const {
2254 in_opr1()->print(out); out->print(" ");
2255 in_opr2()->print(out); out->print(" ");
2256 in_opr3()->print(out); out->print(" ");
2257 result_opr()->print(out);
2258 }
2259
2260 // LIR_Op4
2261 void LIR_Op4::print_instr(outputStream* out) const {
2262 print_condition(out, condition()); out->print(" ");
2263 in_opr1()->print(out); out->print(" ");
2264 in_opr2()->print(out); out->print(" ");
2265 in_opr3()->print(out); out->print(" ");
2266 in_opr4()->print(out); out->print(" ");
2267 result_opr()->print(out);
2268 }
2269
2270 void LIR_OpLock::print_instr(outputStream* out) const {
2306 mdo()->print(out); out->print(" ");
2307 recv()->print(out); out->print(" ");
2308 tmp1()->print(out); out->print(" ");
2309 }
2310
2311 // LIR_OpProfileType
2312 void LIR_OpProfileType::print_instr(outputStream* out) const {
2313 out->print("exact = ");
2314 if (exact_klass() == nullptr) {
2315 out->print("unknown");
2316 } else {
2317 exact_klass()->print_name_on(out);
2318 }
2319 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2320 out->print(" ");
2321 mdp()->print(out); out->print(" ");
2322 obj()->print(out); out->print(" ");
2323 tmp()->print(out); out->print(" ");
2324 }
2325
2326 // LIR_OpProfileInlineType
2327 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2328 out->print(" flag = %x ", flag());
2329 mdp()->print(out); out->print(" ");
2330 obj()->print(out); out->print(" ");
2331 tmp()->print(out); out->print(" ");
2332 }
2333
2334 #endif // PRODUCT
2335
2336 // Implementation of LIR_InsertionBuffer
2337
2338 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2339 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2340
2341 int i = number_of_insertion_points() - 1;
2342 if (i < 0 || index_at(i) < index) {
2343 append_new(index, 1);
2344 } else {
2345 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2346 assert(count_at(i) > 0, "check");
2347 set_count_at(i, count_at(i) + 1);
2348 }
2349 _ops.push(op);
2350
2351 DEBUG_ONLY(verify());
2352 }
2353
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