1336 if (x->is_add()) {
1337 __ xadd(ptr, data, dst, tmp);
1338 } else {
1339 const bool can_move_barrier = true; // TODO: port GraphKit::can_move_pre_barrier() from C2
1340 if (!can_move_barrier && is_obj) {
1341 // Do the pre-write barrier, if any.
1342 pre_barrier(ptr, LIR_OprFact::illegalOpr /* pre_val */,
1343 true /* do_load */, false /* patch */, NULL);
1344 }
1345 __ xchg(ptr, data, dst, tmp);
1346 if (is_obj) {
1347 // Seems to be a precise address.
1348 post_barrier(ptr, data);
1349 if (can_move_barrier) {
1350 pre_barrier(LIR_OprFact::illegalOpr, dst /* pre_val */,
1351 false /* do_load */, false /* patch */, NULL);
1352 }
1353 }
1354 }
1355
1356 __ membar();
1357 }
1358
1359
1360 void LIRGenerator::do_update_CRC32(Intrinsic* x) {
1361 assert(UseCRC32Intrinsics, "or should not be here");
1362 LIR_Opr result = rlock_result(x);
1363
1364 switch (x->id()) {
1365 case vmIntrinsics::_updateCRC32: {
1366 LIRItem crc(x->argument_at(0), this);
1367 LIRItem val(x->argument_at(1), this);
1368 // Registers destroyed by update_crc32.
1369 crc.set_destroys_register();
1370 val.set_destroys_register();
1371 crc.load_item();
1372 val.load_item();
1373 __ update_crc32(crc.result(), val.result(), result);
1374 break;
1375 }
1376 case vmIntrinsics::_updateBytesCRC32:
|
1336 if (x->is_add()) {
1337 __ xadd(ptr, data, dst, tmp);
1338 } else {
1339 const bool can_move_barrier = true; // TODO: port GraphKit::can_move_pre_barrier() from C2
1340 if (!can_move_barrier && is_obj) {
1341 // Do the pre-write barrier, if any.
1342 pre_barrier(ptr, LIR_OprFact::illegalOpr /* pre_val */,
1343 true /* do_load */, false /* patch */, NULL);
1344 }
1345 __ xchg(ptr, data, dst, tmp);
1346 if (is_obj) {
1347 // Seems to be a precise address.
1348 post_barrier(ptr, data);
1349 if (can_move_barrier) {
1350 pre_barrier(LIR_OprFact::illegalOpr, dst /* pre_val */,
1351 false /* do_load */, false /* patch */, NULL);
1352 }
1353 }
1354 }
1355
1356 if (support_IRIW_for_not_multiple_copy_atomic_cpu) {
1357 __ membar_acquire();
1358 } else {
1359 __ membar();
1360 }
1361 }
1362
1363
1364 void LIRGenerator::do_update_CRC32(Intrinsic* x) {
1365 assert(UseCRC32Intrinsics, "or should not be here");
1366 LIR_Opr result = rlock_result(x);
1367
1368 switch (x->id()) {
1369 case vmIntrinsics::_updateCRC32: {
1370 LIRItem crc(x->argument_at(0), this);
1371 LIRItem val(x->argument_at(1), this);
1372 // Registers destroyed by update_crc32.
1373 crc.set_destroys_register();
1374 val.set_destroys_register();
1375 crc.load_item();
1376 val.load_item();
1377 __ update_crc32(crc.result(), val.result(), result);
1378 break;
1379 }
1380 case vmIntrinsics::_updateBytesCRC32:
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