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(RISCV64) || defined(PPC64)
354 if (expected_type != nullptr &&
355 ((flags & ~LIR_OpArrayCopy::get_initial_copy_flags()) == 0)) {
356 _stub = nullptr;
357 } else {
358 _stub = new ArrayCopyStub(this);
359 }
360 #else
395 // complete rework of LIR instruction visitor.
396 // The virtual call for each instruction type is replaced by a big
397 // switch that adds the operands for each instruction
398
399 void LIR_OpVisitState::visit(LIR_Op* op) {
400 // copy information from the LIR_Op
401 reset();
402 set_op(op);
403
404 switch (op->code()) {
405
406 // LIR_Op0
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
778
779
780 // LIR_OpLock
781 case lir_lock:
782 case lir_unlock: {
783 assert(op->as_OpLock() != nullptr, "must be");
784 LIR_OpLock* opLock = (LIR_OpLock*)op;
785
786 if (opLock->_info) do_info(opLock->_info);
787
788 // TODO: check if these operands really have to be temp
789 // (or if input is sufficient). This may have influence on the oop map!
790 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
791 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
792 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
793
794 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
795 assert(opLock->_result->is_illegal(), "unused");
796
797 do_stub(opLock->_stub);
798
799 break;
800 }
801
802
803 // LIR_OpDelay
804 case lir_delay_slot: {
805 assert(op->as_OpDelay() != nullptr, "must be");
806 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
807
808 visit(opDelay->delay_op());
809 break;
810 }
811
812 // LIR_OpTypeCheck
813 case lir_instanceof:
814 case lir_checkcast:
815 case lir_store_check: {
816 assert(op->as_OpTypeCheck() != nullptr, "must be");
817 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
818
819 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
820 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
821 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
822 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
823 do_temp(opTypeCheck->_object);
824 }
825 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
826 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
827 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
828 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
829 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
830 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
831 break;
832 }
833
834 // LIR_OpCompareAndSwap
835 case lir_cas_long:
836 case lir_cas_obj:
837 case lir_cas_int: {
838 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
839 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
840
841 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
842 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
843 do_temp(opCmpAndSwap->_addr);
844 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
845 do_temp(opCmpAndSwap->_cmp_value);
846 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
847 do_temp(opCmpAndSwap->_new_value);
848 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
849 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
850 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
851
852 break;
853 }
891 case lir_profile_call: {
892 assert(op->as_OpProfileCall() != nullptr, "must be");
893 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
894
895 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
896 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
897 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
898 break;
899 }
900
901 // LIR_OpProfileType:
902 case lir_profile_type: {
903 assert(op->as_OpProfileType() != nullptr, "must be");
904 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
905
906 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
907 do_input(opProfileType->_obj);
908 do_temp(opProfileType->_tmp);
909 break;
910 }
911 default:
912 op->visit(this);
913 }
914 }
915
916 void LIR_Op::visit(LIR_OpVisitState* state) {
917 ShouldNotReachHere();
918 }
919
920 void LIR_OpVisitState::do_stub(CodeStub* stub) {
921 if (stub != nullptr) {
922 stub->visit(this);
923 }
924 }
925
926 XHandlers* LIR_OpVisitState::all_xhandler() {
927 XHandlers* result = nullptr;
928
929 int i;
930 for (i = 0; i < info_count(); i++) {
931 if (info_at(i)->exception_handlers() != nullptr) {
964 !has_slow_case();
965 }
966 #endif
967
968 // LIR_OpReturn
969 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
970 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
971 _stub(nullptr) {
972 if (VM_Version::supports_stack_watermark_barrier()) {
973 _stub = new C1SafepointPollStub();
974 }
975 }
976
977 //---------------------------------------------------
978
979
980 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
981 masm->emit_call(this);
982 }
983
984 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
985 masm->emit_rtcall(this);
986 }
987
988 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
989 masm->emit_opLabel(this);
990 }
991
992 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
993 masm->emit_arraycopy(this);
994 ArrayCopyStub* code_stub = stub();
995 if (code_stub != nullptr) {
996 masm->append_code_stub(code_stub);
997 }
998 }
999
1000 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1001 masm->emit_updatecrc32(this);
1002 }
1003
1027 masm->append_code_stub(stub());
1028 }
1029 }
1030
1031 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1032 masm->emit_op2(this);
1033 }
1034
1035 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1036 masm->emit_alloc_array(this);
1037 masm->append_code_stub(stub());
1038 }
1039
1040 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1041 masm->emit_opTypeCheck(this);
1042 if (stub()) {
1043 masm->append_code_stub(stub());
1044 }
1045 }
1046
1047 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1048 masm->emit_compare_and_swap(this);
1049 }
1050
1051 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1052 masm->emit_op3(this);
1053 }
1054
1055 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1056 masm->emit_op4(this);
1057 }
1058
1059 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1060 masm->emit_lock(this);
1061 if (stub()) {
1062 masm->append_code_stub(stub());
1063 }
1064 }
1065
1066 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1067 masm->emit_load_klass(this);
1068 }
1069
1070 #ifdef ASSERT
1071 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1072 masm->emit_assert(this);
1073 }
1074 #endif
1075
1076 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1077 masm->emit_delay(this);
1078 }
1079
1080 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1081 masm->emit_profile_call(this);
1082 }
1083
1084 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1085 masm->emit_profile_type(this);
1086 }
1087
1088 // LIR_List
1089 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1090 : _operations(8)
1091 , _compilation(compilation)
1092 #ifndef PRODUCT
1093 , _block(block)
1094 #endif
1095 #ifdef ASSERT
1096 , _file(nullptr)
1097 , _line(0)
1098 #endif
1099 #ifdef RISCV
1100 , _cmp_opr1(LIR_OprFact::illegalOpr)
1101 , _cmp_opr2(LIR_OprFact::illegalOpr)
1102 #endif
1103 { }
1104
1105
1106 #ifdef ASSERT
1107 void LIR_List::set_file_and_line(const char * file, int line) {
1343 reg,
1344 LIR_OprFact::address(addr),
1345 info));
1346 }
1347
1348 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1349 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1350 append(new LIR_OpAllocObj(
1351 klass,
1352 dst,
1353 t1,
1354 t2,
1355 t3,
1356 t4,
1357 header_size,
1358 object_size,
1359 init_check,
1360 stub));
1361 }
1362
1363 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) {
1364 append(new LIR_OpAllocArray(
1365 klass,
1366 len,
1367 dst,
1368 t1,
1369 t2,
1370 t3,
1371 t4,
1372 type,
1373 stub,
1374 zero_array));
1375 }
1376
1377 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1378 append(new LIR_Op2(
1379 lir_shl,
1380 value,
1381 count,
1382 dst,
1383 tmp));
1384 }
1385
1386 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1387 append(new LIR_Op2(
1388 lir_shr,
1389 value,
1390 count,
1391 dst,
1392 tmp));
1393 }
1394
1395
1396 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1397 append(new LIR_Op2(
1398 lir_ushr,
1399 value,
1400 count,
1401 dst,
1402 tmp));
1403 }
1404
1405 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1406 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1407 left,
1408 right,
1409 dst));
1410 }
1411
1412 void LIR_List::lock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub, CodeEmitInfo* info) {
1413 append(new LIR_OpLock(
1414 lir_lock,
1415 hdr,
1416 obj,
1417 lock,
1418 scratch,
1419 stub,
1420 info));
1421 }
1422
1423 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1424 append(new LIR_OpLock(
1425 lir_unlock,
1426 hdr,
1427 obj,
1428 lock,
1429 scratch,
1430 stub,
1431 nullptr));
1432 }
1433
1434
1435 void check_LIR() {
1436 // cannot do the proper checking as PRODUCT and other modes return different results
1437 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1438 }
1439
1440
1441
1442 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1443 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1444 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1445 ciMethod* profiled_method, int profiled_bci) {
1446 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1447 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub);
1448 if (profiled_method != nullptr && TypeProfileCasts) {
1449 c->set_profiled_method(profiled_method);
1450 c->set_profiled_bci(profiled_bci);
1451 c->set_should_profile(true);
1452 }
1453 append(c);
1454 }
1455
1456 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) {
1457 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1458 if (profiled_method != nullptr && TypeProfileCasts) {
1459 c->set_profiled_method(profiled_method);
1460 c->set_profiled_bci(profiled_bci);
1461 c->set_should_profile(true);
1462 }
1463 append(c);
1464 }
1465
1466
1467 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1468 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1469 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1470 if (profiled_method != nullptr && TypeProfileCasts) {
1471 c->set_profiled_method(profiled_method);
1472 c->set_profiled_bci(profiled_bci);
1473 c->set_should_profile(true);
1474 }
1475 append(c);
1476 }
1477
1478 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1479 if (deoptimize_on_null) {
1480 // Emit an explicit null check and deoptimize if opr is null
1481 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1482 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1483 branch(lir_cond_equal, deopt);
1484 } else {
1485 // Emit an implicit null check
1486 append(new LIR_Op1(lir_null_check, opr, info));
1487 }
1488 }
1489
1490 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1491 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1492 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1493 }
1494
1495 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1496 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1497 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1498 }
1499
1500 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1501 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1502 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1503 }
1504
1505
1506 #ifdef PRODUCT
1507
1508 void print_LIR(BlockList* blocks) {
1509 }
1685 }
1686
1687 const char * LIR_Op::name() const {
1688 const char* s = nullptr;
1689 switch(code()) {
1690 // LIR_Op0
1691 case lir_membar: s = "membar"; break;
1692 case lir_membar_acquire: s = "membar_acquire"; break;
1693 case lir_membar_release: s = "membar_release"; break;
1694 case lir_membar_loadload: s = "membar_loadload"; break;
1695 case lir_membar_storestore: s = "membar_storestore"; break;
1696 case lir_membar_loadstore: s = "membar_loadstore"; break;
1697 case lir_membar_storeload: s = "membar_storeload"; break;
1698 case lir_label: s = "label"; break;
1699 case lir_nop: s = "nop"; break;
1700 case lir_on_spin_wait: s = "on_spin_wait"; break;
1701 case lir_std_entry: s = "std_entry"; break;
1702 case lir_osr_entry: s = "osr_entry"; break;
1703 case lir_breakpoint: s = "breakpoint"; break;
1704 case lir_get_thread: s = "get_thread"; break;
1705 // LIR_Op1
1706 case lir_push: s = "push"; break;
1707 case lir_pop: s = "pop"; break;
1708 case lir_null_check: s = "null_check"; break;
1709 case lir_return: s = "return"; break;
1710 case lir_safepoint: s = "safepoint"; break;
1711 case lir_leal: s = "leal"; break;
1712 case lir_branch: s = "branch"; break;
1713 case lir_cond_float_branch: s = "flt_cond_br"; break;
1714 case lir_move: s = "move"; break;
1715 case lir_abs: s = "abs"; break;
1716 case lir_neg: s = "neg"; break;
1717 case lir_sqrt: s = "sqrt"; break;
1718 case lir_f2hf: s = "f2hf"; break;
1719 case lir_hf2f: s = "hf2f"; break;
1720 case lir_rtcall: s = "rtcall"; break;
1721 case lir_throw: s = "throw"; break;
1722 case lir_unwind: s = "unwind"; break;
1723 case lir_convert: s = "convert"; break;
1724 case lir_alloc_object: s = "alloc_obj"; break;
1750 // LIR_Op4
1751 case lir_cmove: s = "cmove"; break;
1752 // LIR_OpJavaCall
1753 case lir_static_call: s = "static"; break;
1754 case lir_optvirtual_call: s = "optvirtual"; break;
1755 case lir_icvirtual_call: s = "icvirtual"; break;
1756 case lir_dynamic_call: s = "dynamic"; break;
1757 // LIR_OpArrayCopy
1758 case lir_arraycopy: s = "arraycopy"; break;
1759 // LIR_OpUpdateCRC32
1760 case lir_updatecrc32: s = "updatecrc32"; break;
1761 // LIR_OpLock
1762 case lir_lock: s = "lock"; break;
1763 case lir_unlock: s = "unlock"; break;
1764 // LIR_OpDelay
1765 case lir_delay_slot: s = "delay"; break;
1766 // LIR_OpTypeCheck
1767 case lir_instanceof: s = "instanceof"; break;
1768 case lir_checkcast: s = "checkcast"; break;
1769 case lir_store_check: s = "store_check"; break;
1770 // LIR_OpCompareAndSwap
1771 case lir_cas_long: s = "cas_long"; break;
1772 case lir_cas_obj: s = "cas_obj"; break;
1773 case lir_cas_int: s = "cas_int"; break;
1774 // LIR_OpProfileCall
1775 case lir_profile_call: s = "profile_call"; break;
1776 // LIR_OpProfileType
1777 case lir_profile_type: s = "profile_type"; break;
1778 // LIR_OpAssert
1779 #ifdef ASSERT
1780 case lir_assert: s = "assert"; break;
1781 #endif
1782 case lir_none: ShouldNotReachHere();break;
1783 default: s = "illegal_op"; break;
1784 }
1785 return s;
1786 }
1787
1788 // LIR_OpJavaCall
1789 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1790 out->print("call: ");
1791 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1792 if (receiver()->is_valid()) {
1793 out->print(" [recv: "); receiver()->print(out); out->print("]");
1794 }
1795 if (result_opr()->is_valid()) {
1796 out->print(" [result: "); result_opr()->print(out); out->print("]");
1797 }
1983 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
1984 }
1985
1986
1987 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
1988 object()->print(out); out->print(" ");
1989 if (code() == lir_store_check) {
1990 array()->print(out); out->print(" ");
1991 }
1992 if (code() != lir_store_check) {
1993 klass()->print_name_on(out); out->print(" ");
1994 if (fast_check()) out->print("fast_check ");
1995 }
1996 tmp1()->print(out); out->print(" ");
1997 tmp2()->print(out); out->print(" ");
1998 tmp3()->print(out); out->print(" ");
1999 result_opr()->print(out); out->print(" ");
2000 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2001 }
2002
2003
2004 // LIR_Op3
2005 void LIR_Op3::print_instr(outputStream* out) const {
2006 in_opr1()->print(out); out->print(" ");
2007 in_opr2()->print(out); out->print(" ");
2008 in_opr3()->print(out); out->print(" ");
2009 result_opr()->print(out);
2010 }
2011
2012 // LIR_Op4
2013 void LIR_Op4::print_instr(outputStream* out) const {
2014 print_condition(out, condition()); out->print(" ");
2015 in_opr1()->print(out); out->print(" ");
2016 in_opr2()->print(out); out->print(" ");
2017 in_opr3()->print(out); out->print(" ");
2018 in_opr4()->print(out); out->print(" ");
2019 result_opr()->print(out);
2020 }
2021
2022 void LIR_OpLock::print_instr(outputStream* out) const {
2058 mdo()->print(out); out->print(" ");
2059 recv()->print(out); out->print(" ");
2060 tmp1()->print(out); out->print(" ");
2061 }
2062
2063 // LIR_OpProfileType
2064 void LIR_OpProfileType::print_instr(outputStream* out) const {
2065 out->print("exact = ");
2066 if (exact_klass() == nullptr) {
2067 out->print("unknown");
2068 } else {
2069 exact_klass()->print_name_on(out);
2070 }
2071 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2072 out->print(" ");
2073 mdp()->print(out); out->print(" ");
2074 obj()->print(out); out->print(" ");
2075 tmp()->print(out); out->print(" ");
2076 }
2077
2078 #endif // PRODUCT
2079
2080 // Implementation of LIR_InsertionBuffer
2081
2082 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2083 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2084
2085 int i = number_of_insertion_points() - 1;
2086 if (i < 0 || index_at(i) < index) {
2087 append_new(index, 1);
2088 } else {
2089 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2090 assert(count_at(i) > 0, "check");
2091 set_count_at(i, count_at(i) + 1);
2092 }
2093 _ops.push(op);
2094
2095 DEBUG_ONLY(verify());
2096 }
2097
|
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(RISCV64) || defined(PPC64)
388 if (expected_type != nullptr &&
389 ((flags & ~LIR_OpArrayCopy::get_initial_copy_flags()) == 0)) {
390 _stub = nullptr;
391 } else {
392 _stub = new ArrayCopyStub(this);
393 }
394 #else
429 // complete rework of LIR instruction visitor.
430 // The virtual call for each instruction type is replaced by a big
431 // switch that adds the operands for each instruction
432
433 void LIR_OpVisitState::visit(LIR_Op* op) {
434 // copy information from the LIR_Op
435 reset();
436 set_op(op);
437
438 switch (op->code()) {
439
440 // LIR_Op0
441 case lir_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
813
814
815 // LIR_OpLock
816 case lir_lock:
817 case lir_unlock: {
818 assert(op->as_OpLock() != nullptr, "must be");
819 LIR_OpLock* opLock = (LIR_OpLock*)op;
820
821 if (opLock->_info) do_info(opLock->_info);
822
823 // TODO: check if these operands really have to be temp
824 // (or if input is sufficient). This may have influence on the oop map!
825 assert(opLock->_lock->is_valid(), "used"); do_temp(opLock->_lock);
826 assert(opLock->_hdr->is_valid(), "used"); do_temp(opLock->_hdr);
827 assert(opLock->_obj->is_valid(), "used"); do_temp(opLock->_obj);
828
829 if (opLock->_scratch->is_valid()) do_temp(opLock->_scratch);
830 assert(opLock->_result->is_illegal(), "unused");
831
832 do_stub(opLock->_stub);
833 do_stub(opLock->_throw_ie_stub);
834
835 break;
836 }
837
838
839 // LIR_OpDelay
840 case lir_delay_slot: {
841 assert(op->as_OpDelay() != nullptr, "must be");
842 LIR_OpDelay* opDelay = (LIR_OpDelay*)op;
843
844 visit(opDelay->delay_op());
845 break;
846 }
847
848 // LIR_OpTypeCheck
849 case lir_instanceof:
850 case lir_checkcast:
851 case lir_store_check: {
852 assert(op->as_OpTypeCheck() != nullptr, "must be");
853 LIR_OpTypeCheck* opTypeCheck = (LIR_OpTypeCheck*)op;
854
855 if (opTypeCheck->_info_for_exception) do_info(opTypeCheck->_info_for_exception);
856 if (opTypeCheck->_info_for_patch) do_info(opTypeCheck->_info_for_patch);
857 if (opTypeCheck->_object->is_valid()) do_input(opTypeCheck->_object);
858 if (op->code() == lir_store_check && opTypeCheck->_object->is_valid()) {
859 do_temp(opTypeCheck->_object);
860 }
861 if (opTypeCheck->_array->is_valid()) do_input(opTypeCheck->_array);
862 if (opTypeCheck->_tmp1->is_valid()) do_temp(opTypeCheck->_tmp1);
863 if (opTypeCheck->_tmp2->is_valid()) do_temp(opTypeCheck->_tmp2);
864 if (opTypeCheck->_tmp3->is_valid()) do_temp(opTypeCheck->_tmp3);
865 if (opTypeCheck->_result->is_valid()) do_output(opTypeCheck->_result);
866 if (opTypeCheck->_stub != nullptr) do_stub(opTypeCheck->_stub);
867 break;
868 }
869
870 // LIR_OpFlattenedArrayCheck
871 case lir_flat_array_check: {
872 assert(op->as_OpFlattenedArrayCheck() != nullptr, "must be");
873 LIR_OpFlattenedArrayCheck* opFlattenedArrayCheck = (LIR_OpFlattenedArrayCheck*)op;
874
875 if (opFlattenedArrayCheck->_array->is_valid()) do_input(opFlattenedArrayCheck->_array);
876 if (opFlattenedArrayCheck->_value->is_valid()) do_input(opFlattenedArrayCheck->_value);
877 if (opFlattenedArrayCheck->_tmp->is_valid()) do_temp(opFlattenedArrayCheck->_tmp);
878
879 do_stub(opFlattenedArrayCheck->_stub);
880
881 break;
882 }
883
884 // LIR_OpNullFreeArrayCheck
885 case lir_null_free_array_check: {
886 assert(op->as_OpNullFreeArrayCheck() != nullptr, "must be");
887 LIR_OpNullFreeArrayCheck* opNullFreeArrayCheck = (LIR_OpNullFreeArrayCheck*)op;
888
889 if (opNullFreeArrayCheck->_array->is_valid()) do_input(opNullFreeArrayCheck->_array);
890 if (opNullFreeArrayCheck->_tmp->is_valid()) do_temp(opNullFreeArrayCheck->_tmp);
891 break;
892 }
893
894 // LIR_OpSubstitutabilityCheck
895 case lir_substitutability_check: {
896 assert(op->as_OpSubstitutabilityCheck() != nullptr, "must be");
897 LIR_OpSubstitutabilityCheck* opSubstitutabilityCheck = (LIR_OpSubstitutabilityCheck*)op;
898 do_input(opSubstitutabilityCheck->_left);
899 do_temp (opSubstitutabilityCheck->_left);
900 do_input(opSubstitutabilityCheck->_right);
901 do_temp (opSubstitutabilityCheck->_right);
902 do_input(opSubstitutabilityCheck->_equal_result);
903 do_temp (opSubstitutabilityCheck->_equal_result);
904 do_input(opSubstitutabilityCheck->_not_equal_result);
905 do_temp (opSubstitutabilityCheck->_not_equal_result);
906 if (opSubstitutabilityCheck->_tmp1->is_valid()) do_temp(opSubstitutabilityCheck->_tmp1);
907 if (opSubstitutabilityCheck->_tmp2->is_valid()) do_temp(opSubstitutabilityCheck->_tmp2);
908 if (opSubstitutabilityCheck->_left_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_left_klass_op);
909 if (opSubstitutabilityCheck->_right_klass_op->is_valid()) do_temp(opSubstitutabilityCheck->_right_klass_op);
910 if (opSubstitutabilityCheck->_result->is_valid()) do_output(opSubstitutabilityCheck->_result);
911
912 do_info(opSubstitutabilityCheck->_info);
913 do_stub(opSubstitutabilityCheck->_stub);
914 break;
915 }
916
917 // LIR_OpCompareAndSwap
918 case lir_cas_long:
919 case lir_cas_obj:
920 case lir_cas_int: {
921 assert(op->as_OpCompareAndSwap() != nullptr, "must be");
922 LIR_OpCompareAndSwap* opCmpAndSwap = (LIR_OpCompareAndSwap*)op;
923
924 if (opCmpAndSwap->_info) do_info(opCmpAndSwap->_info);
925 assert(opCmpAndSwap->_addr->is_valid(), "used"); do_input(opCmpAndSwap->_addr);
926 do_temp(opCmpAndSwap->_addr);
927 assert(opCmpAndSwap->_cmp_value->is_valid(), "used"); do_input(opCmpAndSwap->_cmp_value);
928 do_temp(opCmpAndSwap->_cmp_value);
929 assert(opCmpAndSwap->_new_value->is_valid(), "used"); do_input(opCmpAndSwap->_new_value);
930 do_temp(opCmpAndSwap->_new_value);
931 if (opCmpAndSwap->_tmp1->is_valid()) do_temp(opCmpAndSwap->_tmp1);
932 if (opCmpAndSwap->_tmp2->is_valid()) do_temp(opCmpAndSwap->_tmp2);
933 if (opCmpAndSwap->_result->is_valid()) do_output(opCmpAndSwap->_result);
934
935 break;
936 }
974 case lir_profile_call: {
975 assert(op->as_OpProfileCall() != nullptr, "must be");
976 LIR_OpProfileCall* opProfileCall = (LIR_OpProfileCall*)op;
977
978 if (opProfileCall->_recv->is_valid()) do_temp(opProfileCall->_recv);
979 assert(opProfileCall->_mdo->is_valid(), "used"); do_temp(opProfileCall->_mdo);
980 assert(opProfileCall->_tmp1->is_valid(), "used"); do_temp(opProfileCall->_tmp1);
981 break;
982 }
983
984 // LIR_OpProfileType:
985 case lir_profile_type: {
986 assert(op->as_OpProfileType() != nullptr, "must be");
987 LIR_OpProfileType* opProfileType = (LIR_OpProfileType*)op;
988
989 do_input(opProfileType->_mdp); do_temp(opProfileType->_mdp);
990 do_input(opProfileType->_obj);
991 do_temp(opProfileType->_tmp);
992 break;
993 }
994
995 // LIR_OpProfileInlineType:
996 case lir_profile_inline_type: {
997 assert(op->as_OpProfileInlineType() != nullptr, "must be");
998 LIR_OpProfileInlineType* opProfileInlineType = (LIR_OpProfileInlineType*)op;
999
1000 do_input(opProfileInlineType->_mdp); do_temp(opProfileInlineType->_mdp);
1001 do_input(opProfileInlineType->_obj);
1002 do_temp(opProfileInlineType->_tmp);
1003 break;
1004 }
1005 default:
1006 op->visit(this);
1007 }
1008 }
1009
1010 void LIR_Op::visit(LIR_OpVisitState* state) {
1011 ShouldNotReachHere();
1012 }
1013
1014 void LIR_OpVisitState::do_stub(CodeStub* stub) {
1015 if (stub != nullptr) {
1016 stub->visit(this);
1017 }
1018 }
1019
1020 XHandlers* LIR_OpVisitState::all_xhandler() {
1021 XHandlers* result = nullptr;
1022
1023 int i;
1024 for (i = 0; i < info_count(); i++) {
1025 if (info_at(i)->exception_handlers() != nullptr) {
1058 !has_slow_case();
1059 }
1060 #endif
1061
1062 // LIR_OpReturn
1063 LIR_OpReturn::LIR_OpReturn(LIR_Opr opr) :
1064 LIR_Op1(lir_return, opr, (CodeEmitInfo*)nullptr /* info */),
1065 _stub(nullptr) {
1066 if (VM_Version::supports_stack_watermark_barrier()) {
1067 _stub = new C1SafepointPollStub();
1068 }
1069 }
1070
1071 //---------------------------------------------------
1072
1073
1074 void LIR_OpJavaCall::emit_code(LIR_Assembler* masm) {
1075 masm->emit_call(this);
1076 }
1077
1078 bool LIR_OpJavaCall::maybe_return_as_fields(ciInlineKlass** vk_ret) const {
1079 ciType* return_type = method()->return_type();
1080 if (InlineTypeReturnedAsFields) {
1081 if (return_type->is_inlinetype()) {
1082 ciInlineKlass* vk = return_type->as_inline_klass();
1083 if (vk->can_be_returned_as_fields()) {
1084 if (vk_ret != nullptr) {
1085 *vk_ret = vk;
1086 }
1087 return true;
1088 }
1089 } else if (return_type->is_instance_klass() &&
1090 (method()->is_method_handle_intrinsic() || !return_type->is_loaded() ||
1091 StressCallingConvention)) {
1092 // An inline type might be returned from the call but we don't know its type.
1093 // This can happen with method handle intrinsics or when the return type is
1094 // not loaded (method holder is not loaded or preload attribute is missing).
1095 // If an inline type is returned, we either get an oop to a buffer and nothing
1096 // needs to be done or one of the values being returned is the klass of the
1097 // inline type (RAX on x64, with LSB set to 1) and we need to allocate an inline
1098 // type instance of that type and initialize it with the fields values being
1099 // returned in other registers.
1100 return true;
1101 }
1102 }
1103 return false;
1104 }
1105
1106 void LIR_OpRTCall::emit_code(LIR_Assembler* masm) {
1107 masm->emit_rtcall(this);
1108 }
1109
1110 void LIR_OpLabel::emit_code(LIR_Assembler* masm) {
1111 masm->emit_opLabel(this);
1112 }
1113
1114 void LIR_OpArrayCopy::emit_code(LIR_Assembler* masm) {
1115 masm->emit_arraycopy(this);
1116 ArrayCopyStub* code_stub = stub();
1117 if (code_stub != nullptr) {
1118 masm->append_code_stub(code_stub);
1119 }
1120 }
1121
1122 void LIR_OpUpdateCRC32::emit_code(LIR_Assembler* masm) {
1123 masm->emit_updatecrc32(this);
1124 }
1125
1149 masm->append_code_stub(stub());
1150 }
1151 }
1152
1153 void LIR_Op2::emit_code(LIR_Assembler* masm) {
1154 masm->emit_op2(this);
1155 }
1156
1157 void LIR_OpAllocArray::emit_code(LIR_Assembler* masm) {
1158 masm->emit_alloc_array(this);
1159 masm->append_code_stub(stub());
1160 }
1161
1162 void LIR_OpTypeCheck::emit_code(LIR_Assembler* masm) {
1163 masm->emit_opTypeCheck(this);
1164 if (stub()) {
1165 masm->append_code_stub(stub());
1166 }
1167 }
1168
1169 void LIR_OpFlattenedArrayCheck::emit_code(LIR_Assembler* masm) {
1170 masm->emit_opFlattenedArrayCheck(this);
1171 if (stub() != nullptr) {
1172 masm->append_code_stub(stub());
1173 }
1174 }
1175
1176 void LIR_OpNullFreeArrayCheck::emit_code(LIR_Assembler* masm) {
1177 masm->emit_opNullFreeArrayCheck(this);
1178 }
1179
1180 void LIR_OpSubstitutabilityCheck::emit_code(LIR_Assembler* masm) {
1181 masm->emit_opSubstitutabilityCheck(this);
1182 if (stub() != nullptr) {
1183 masm->append_code_stub(stub());
1184 }
1185 }
1186
1187 void LIR_OpCompareAndSwap::emit_code(LIR_Assembler* masm) {
1188 masm->emit_compare_and_swap(this);
1189 }
1190
1191 void LIR_Op3::emit_code(LIR_Assembler* masm) {
1192 masm->emit_op3(this);
1193 }
1194
1195 void LIR_Op4::emit_code(LIR_Assembler* masm) {
1196 masm->emit_op4(this);
1197 }
1198
1199 void LIR_OpLock::emit_code(LIR_Assembler* masm) {
1200 masm->emit_lock(this);
1201 if (stub()) {
1202 masm->append_code_stub(stub());
1203 }
1204 if (throw_ie_stub()) {
1205 masm->append_code_stub(throw_ie_stub());
1206 }
1207 }
1208
1209 void LIR_OpLoadKlass::emit_code(LIR_Assembler* masm) {
1210 masm->emit_load_klass(this);
1211 }
1212
1213 #ifdef ASSERT
1214 void LIR_OpAssert::emit_code(LIR_Assembler* masm) {
1215 masm->emit_assert(this);
1216 }
1217 #endif
1218
1219 void LIR_OpDelay::emit_code(LIR_Assembler* masm) {
1220 masm->emit_delay(this);
1221 }
1222
1223 void LIR_OpProfileCall::emit_code(LIR_Assembler* masm) {
1224 masm->emit_profile_call(this);
1225 }
1226
1227 void LIR_OpProfileType::emit_code(LIR_Assembler* masm) {
1228 masm->emit_profile_type(this);
1229 }
1230
1231 void LIR_OpProfileInlineType::emit_code(LIR_Assembler* masm) {
1232 masm->emit_profile_inline_type(this);
1233 }
1234
1235 // LIR_List
1236 LIR_List::LIR_List(Compilation* compilation, BlockBegin* block)
1237 : _operations(8)
1238 , _compilation(compilation)
1239 #ifndef PRODUCT
1240 , _block(block)
1241 #endif
1242 #ifdef ASSERT
1243 , _file(nullptr)
1244 , _line(0)
1245 #endif
1246 #ifdef RISCV
1247 , _cmp_opr1(LIR_OprFact::illegalOpr)
1248 , _cmp_opr2(LIR_OprFact::illegalOpr)
1249 #endif
1250 { }
1251
1252
1253 #ifdef ASSERT
1254 void LIR_List::set_file_and_line(const char * file, int line) {
1490 reg,
1491 LIR_OprFact::address(addr),
1492 info));
1493 }
1494
1495 void LIR_List::allocate_object(LIR_Opr dst, LIR_Opr t1, LIR_Opr t2, LIR_Opr t3, LIR_Opr t4,
1496 int header_size, int object_size, LIR_Opr klass, bool init_check, CodeStub* stub) {
1497 append(new LIR_OpAllocObj(
1498 klass,
1499 dst,
1500 t1,
1501 t2,
1502 t3,
1503 t4,
1504 header_size,
1505 object_size,
1506 init_check,
1507 stub));
1508 }
1509
1510 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 always_slow_path) {
1511 append(new LIR_OpAllocArray(
1512 klass,
1513 len,
1514 dst,
1515 t1,
1516 t2,
1517 t3,
1518 t4,
1519 type,
1520 stub,
1521 zero_array,
1522 always_slow_path));
1523 }
1524
1525 void LIR_List::shift_left(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1526 append(new LIR_Op2(
1527 lir_shl,
1528 value,
1529 count,
1530 dst,
1531 tmp));
1532 }
1533
1534 void LIR_List::shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1535 append(new LIR_Op2(
1536 lir_shr,
1537 value,
1538 count,
1539 dst,
1540 tmp));
1541 }
1542
1543
1544 void LIR_List::unsigned_shift_right(LIR_Opr value, LIR_Opr count, LIR_Opr dst, LIR_Opr tmp) {
1545 append(new LIR_Op2(
1546 lir_ushr,
1547 value,
1548 count,
1549 dst,
1550 tmp));
1551 }
1552
1553 void LIR_List::fcmp2int(LIR_Opr left, LIR_Opr right, LIR_Opr dst, bool is_unordered_less) {
1554 append(new LIR_Op2(is_unordered_less ? lir_ucmp_fd2i : lir_cmp_fd2i,
1555 left,
1556 right,
1557 dst));
1558 }
1559
1560 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) {
1561 append(new LIR_OpLock(
1562 lir_lock,
1563 hdr,
1564 obj,
1565 lock,
1566 scratch,
1567 stub,
1568 info,
1569 throw_ie_stub));
1570 }
1571
1572 void LIR_List::unlock_object(LIR_Opr hdr, LIR_Opr obj, LIR_Opr lock, LIR_Opr scratch, CodeStub* stub) {
1573 append(new LIR_OpLock(
1574 lir_unlock,
1575 hdr,
1576 obj,
1577 lock,
1578 scratch,
1579 stub,
1580 nullptr));
1581 }
1582
1583
1584 void check_LIR() {
1585 // cannot do the proper checking as PRODUCT and other modes return different results
1586 // guarantee(sizeof(LIR_Opr) == wordSize, "may not have a v-table");
1587 }
1588
1589
1590
1591 void LIR_List::checkcast (LIR_Opr result, LIR_Opr object, ciKlass* klass,
1592 LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3, bool fast_check,
1593 CodeEmitInfo* info_for_exception, CodeEmitInfo* info_for_patch, CodeStub* stub,
1594 ciMethod* profiled_method, int profiled_bci, bool is_null_free) {
1595 // If klass is non-nullable, LIRGenerator::do_CheckCast has already performed null-check
1596 // on the object.
1597 bool need_null_check = !is_null_free;
1598 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_checkcast, result, object, klass,
1599 tmp1, tmp2, tmp3, fast_check, info_for_exception, info_for_patch, stub,
1600 need_null_check);
1601 if (profiled_method != nullptr && TypeProfileCasts) {
1602 c->set_profiled_method(profiled_method);
1603 c->set_profiled_bci(profiled_bci);
1604 c->set_should_profile(true);
1605 }
1606 append(c);
1607 }
1608
1609 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) {
1610 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_instanceof, result, object, klass, tmp1, tmp2, tmp3, fast_check, nullptr, info_for_patch, nullptr);
1611 if (profiled_method != nullptr && TypeProfileCasts) {
1612 c->set_profiled_method(profiled_method);
1613 c->set_profiled_bci(profiled_bci);
1614 c->set_should_profile(true);
1615 }
1616 append(c);
1617 }
1618
1619
1620 void LIR_List::store_check(LIR_Opr object, LIR_Opr array, LIR_Opr tmp1, LIR_Opr tmp2, LIR_Opr tmp3,
1621 CodeEmitInfo* info_for_exception, ciMethod* profiled_method, int profiled_bci) {
1622 // FIXME -- if the types of the array and/or the object are known statically, we can avoid loading the klass
1623 LIR_OpTypeCheck* c = new LIR_OpTypeCheck(lir_store_check, object, array, tmp1, tmp2, tmp3, info_for_exception);
1624 if (profiled_method != nullptr && TypeProfileCasts) {
1625 c->set_profiled_method(profiled_method);
1626 c->set_profiled_bci(profiled_bci);
1627 c->set_should_profile(true);
1628 }
1629 append(c);
1630 }
1631
1632 void LIR_List::null_check(LIR_Opr opr, CodeEmitInfo* info, bool deoptimize_on_null) {
1633 if (deoptimize_on_null) {
1634 // Emit an explicit null check and deoptimize if opr is null
1635 CodeStub* deopt = new DeoptimizeStub(info, Deoptimization::Reason_null_check, Deoptimization::Action_none);
1636 cmp(lir_cond_equal, opr, LIR_OprFact::oopConst(nullptr));
1637 branch(lir_cond_equal, deopt);
1638 } else {
1639 // Emit an implicit null check
1640 append(new LIR_Op1(lir_null_check, opr, info));
1641 }
1642 }
1643
1644 void LIR_List::check_flat_array(LIR_Opr array, LIR_Opr value, LIR_Opr tmp, CodeStub* stub) {
1645 LIR_OpFlattenedArrayCheck* c = new LIR_OpFlattenedArrayCheck(array, value, tmp, stub);
1646 append(c);
1647 }
1648
1649 void LIR_List::check_null_free_array(LIR_Opr array, LIR_Opr tmp) {
1650 LIR_OpNullFreeArrayCheck* c = new LIR_OpNullFreeArrayCheck(array, tmp);
1651 append(c);
1652 }
1653
1654 void LIR_List::substitutability_check(LIR_Opr result, LIR_Opr left, LIR_Opr right, LIR_Opr equal_result, LIR_Opr not_equal_result,
1655 LIR_Opr tmp1, LIR_Opr tmp2,
1656 ciKlass* left_klass, ciKlass* right_klass, LIR_Opr left_klass_op, LIR_Opr right_klass_op,
1657 CodeEmitInfo* info, CodeStub* stub) {
1658 LIR_OpSubstitutabilityCheck* c = new LIR_OpSubstitutabilityCheck(result, left, right, equal_result, not_equal_result,
1659 tmp1, tmp2,
1660 left_klass, right_klass, left_klass_op, right_klass_op,
1661 info, stub);
1662 append(c);
1663 }
1664
1665 void LIR_List::cas_long(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1666 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1667 append(new LIR_OpCompareAndSwap(lir_cas_long, addr, cmp_value, new_value, t1, t2, result));
1668 }
1669
1670 void LIR_List::cas_obj(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1671 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1672 append(new LIR_OpCompareAndSwap(lir_cas_obj, addr, cmp_value, new_value, t1, t2, result));
1673 }
1674
1675 void LIR_List::cas_int(LIR_Opr addr, LIR_Opr cmp_value, LIR_Opr new_value,
1676 LIR_Opr t1, LIR_Opr t2, LIR_Opr result) {
1677 append(new LIR_OpCompareAndSwap(lir_cas_int, addr, cmp_value, new_value, t1, t2, result));
1678 }
1679
1680
1681 #ifdef PRODUCT
1682
1683 void print_LIR(BlockList* blocks) {
1684 }
1860 }
1861
1862 const char * LIR_Op::name() const {
1863 const char* s = nullptr;
1864 switch(code()) {
1865 // LIR_Op0
1866 case lir_membar: s = "membar"; break;
1867 case lir_membar_acquire: s = "membar_acquire"; break;
1868 case lir_membar_release: s = "membar_release"; break;
1869 case lir_membar_loadload: s = "membar_loadload"; break;
1870 case lir_membar_storestore: s = "membar_storestore"; break;
1871 case lir_membar_loadstore: s = "membar_loadstore"; break;
1872 case lir_membar_storeload: s = "membar_storeload"; break;
1873 case lir_label: s = "label"; break;
1874 case lir_nop: s = "nop"; break;
1875 case lir_on_spin_wait: s = "on_spin_wait"; break;
1876 case lir_std_entry: s = "std_entry"; break;
1877 case lir_osr_entry: s = "osr_entry"; break;
1878 case lir_breakpoint: s = "breakpoint"; break;
1879 case lir_get_thread: s = "get_thread"; break;
1880 case lir_check_orig_pc: s = "check_orig_pc"; break;
1881 // LIR_Op1
1882 case lir_push: s = "push"; break;
1883 case lir_pop: s = "pop"; break;
1884 case lir_null_check: s = "null_check"; break;
1885 case lir_return: s = "return"; break;
1886 case lir_safepoint: s = "safepoint"; break;
1887 case lir_leal: s = "leal"; break;
1888 case lir_branch: s = "branch"; break;
1889 case lir_cond_float_branch: s = "flt_cond_br"; break;
1890 case lir_move: s = "move"; break;
1891 case lir_abs: s = "abs"; break;
1892 case lir_neg: s = "neg"; break;
1893 case lir_sqrt: s = "sqrt"; break;
1894 case lir_f2hf: s = "f2hf"; break;
1895 case lir_hf2f: s = "hf2f"; break;
1896 case lir_rtcall: s = "rtcall"; break;
1897 case lir_throw: s = "throw"; break;
1898 case lir_unwind: s = "unwind"; break;
1899 case lir_convert: s = "convert"; break;
1900 case lir_alloc_object: s = "alloc_obj"; break;
1926 // LIR_Op4
1927 case lir_cmove: s = "cmove"; break;
1928 // LIR_OpJavaCall
1929 case lir_static_call: s = "static"; break;
1930 case lir_optvirtual_call: s = "optvirtual"; break;
1931 case lir_icvirtual_call: s = "icvirtual"; break;
1932 case lir_dynamic_call: s = "dynamic"; break;
1933 // LIR_OpArrayCopy
1934 case lir_arraycopy: s = "arraycopy"; break;
1935 // LIR_OpUpdateCRC32
1936 case lir_updatecrc32: s = "updatecrc32"; break;
1937 // LIR_OpLock
1938 case lir_lock: s = "lock"; break;
1939 case lir_unlock: s = "unlock"; break;
1940 // LIR_OpDelay
1941 case lir_delay_slot: s = "delay"; break;
1942 // LIR_OpTypeCheck
1943 case lir_instanceof: s = "instanceof"; break;
1944 case lir_checkcast: s = "checkcast"; break;
1945 case lir_store_check: s = "store_check"; break;
1946 // LIR_OpFlattenedArrayCheck
1947 case lir_flat_array_check: s = "flat_array_check"; break;
1948 // LIR_OpNullFreeArrayCheck
1949 case lir_null_free_array_check: s = "null_free_array_check"; break;
1950 // LIR_OpSubstitutabilityCheck
1951 case lir_substitutability_check: s = "substitutability_check"; break;
1952 // LIR_OpCompareAndSwap
1953 case lir_cas_long: s = "cas_long"; break;
1954 case lir_cas_obj: s = "cas_obj"; break;
1955 case lir_cas_int: s = "cas_int"; break;
1956 // LIR_OpProfileCall
1957 case lir_profile_call: s = "profile_call"; break;
1958 // LIR_OpProfileType
1959 case lir_profile_type: s = "profile_type"; break;
1960 // LIR_OpProfileInlineType
1961 case lir_profile_inline_type: s = "profile_inline_type"; break;
1962 // LIR_OpAssert
1963 #ifdef ASSERT
1964 case lir_assert: s = "assert"; break;
1965 #endif
1966 case lir_none: ShouldNotReachHere();break;
1967 default: s = "illegal_op"; break;
1968 }
1969 return s;
1970 }
1971
1972 // LIR_OpJavaCall
1973 void LIR_OpJavaCall::print_instr(outputStream* out) const {
1974 out->print("call: ");
1975 out->print("[addr: " INTPTR_FORMAT "]", p2i(address()));
1976 if (receiver()->is_valid()) {
1977 out->print(" [recv: "); receiver()->print(out); out->print("]");
1978 }
1979 if (result_opr()->is_valid()) {
1980 out->print(" [result: "); result_opr()->print(out); out->print("]");
1981 }
2167 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2168 }
2169
2170
2171 void LIR_OpTypeCheck::print_instr(outputStream* out) const {
2172 object()->print(out); out->print(" ");
2173 if (code() == lir_store_check) {
2174 array()->print(out); out->print(" ");
2175 }
2176 if (code() != lir_store_check) {
2177 klass()->print_name_on(out); out->print(" ");
2178 if (fast_check()) out->print("fast_check ");
2179 }
2180 tmp1()->print(out); out->print(" ");
2181 tmp2()->print(out); out->print(" ");
2182 tmp3()->print(out); out->print(" ");
2183 result_opr()->print(out); out->print(" ");
2184 if (info_for_exception() != nullptr) out->print(" [bci:%d]", info_for_exception()->stack()->bci());
2185 }
2186
2187 void LIR_OpFlattenedArrayCheck::print_instr(outputStream* out) const {
2188 array()->print(out); out->print(" ");
2189 value()->print(out); out->print(" ");
2190 tmp()->print(out); out->print(" ");
2191 if (stub() != nullptr) {
2192 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2193 }
2194 }
2195
2196 void LIR_OpNullFreeArrayCheck::print_instr(outputStream* out) const {
2197 array()->print(out); out->print(" ");
2198 tmp()->print(out); out->print(" ");
2199 }
2200
2201 void LIR_OpSubstitutabilityCheck::print_instr(outputStream* out) const {
2202 result_opr()->print(out); out->print(" ");
2203 left()->print(out); out->print(" ");
2204 right()->print(out); out->print(" ");
2205 equal_result()->print(out); out->print(" ");
2206 not_equal_result()->print(out); out->print(" ");
2207 tmp1()->print(out); out->print(" ");
2208 tmp2()->print(out); out->print(" ");
2209 if (left_klass() == nullptr) {
2210 out->print("unknown ");
2211 } else {
2212 left_klass()->print(out); out->print(" ");
2213 }
2214 if (right_klass() == nullptr) {
2215 out->print("unknown ");
2216 } else {
2217 right_klass()->print(out); out->print(" ");
2218 }
2219 left_klass_op()->print(out); out->print(" ");
2220 right_klass_op()->print(out); out->print(" ");
2221 if (stub() != nullptr) {
2222 out->print("[label:" INTPTR_FORMAT "]", p2i(stub()->entry()));
2223 }
2224 }
2225
2226 // LIR_Op3
2227 void LIR_Op3::print_instr(outputStream* out) const {
2228 in_opr1()->print(out); out->print(" ");
2229 in_opr2()->print(out); out->print(" ");
2230 in_opr3()->print(out); out->print(" ");
2231 result_opr()->print(out);
2232 }
2233
2234 // LIR_Op4
2235 void LIR_Op4::print_instr(outputStream* out) const {
2236 print_condition(out, condition()); out->print(" ");
2237 in_opr1()->print(out); out->print(" ");
2238 in_opr2()->print(out); out->print(" ");
2239 in_opr3()->print(out); out->print(" ");
2240 in_opr4()->print(out); out->print(" ");
2241 result_opr()->print(out);
2242 }
2243
2244 void LIR_OpLock::print_instr(outputStream* out) const {
2280 mdo()->print(out); out->print(" ");
2281 recv()->print(out); out->print(" ");
2282 tmp1()->print(out); out->print(" ");
2283 }
2284
2285 // LIR_OpProfileType
2286 void LIR_OpProfileType::print_instr(outputStream* out) const {
2287 out->print("exact = ");
2288 if (exact_klass() == nullptr) {
2289 out->print("unknown");
2290 } else {
2291 exact_klass()->print_name_on(out);
2292 }
2293 out->print(" current = "); ciTypeEntries::print_ciklass(out, current_klass());
2294 out->print(" ");
2295 mdp()->print(out); out->print(" ");
2296 obj()->print(out); out->print(" ");
2297 tmp()->print(out); out->print(" ");
2298 }
2299
2300 // LIR_OpProfileInlineType
2301 void LIR_OpProfileInlineType::print_instr(outputStream* out) const {
2302 out->print(" flag = %x ", flag());
2303 mdp()->print(out); out->print(" ");
2304 obj()->print(out); out->print(" ");
2305 tmp()->print(out); out->print(" ");
2306 }
2307
2308 #endif // PRODUCT
2309
2310 // Implementation of LIR_InsertionBuffer
2311
2312 void LIR_InsertionBuffer::append(int index, LIR_Op* op) {
2313 assert(_index_and_count.length() % 2 == 0, "must have a count for each index");
2314
2315 int i = number_of_insertion_points() - 1;
2316 if (i < 0 || index_at(i) < index) {
2317 append_new(index, 1);
2318 } else {
2319 assert(index_at(i) == index, "can append LIR_Ops in ascending order only");
2320 assert(count_at(i) > 0, "check");
2321 set_count_at(i, count_at(i) + 1);
2322 }
2323 _ops.push(op);
2324
2325 DEBUG_ONLY(verify());
2326 }
2327
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