1447 }
1448 }
1449
1450 LIR_Opr result = new_register(t);
1451 __ move((LIR_Opr)c, result);
1452 _constants.append(c);
1453 _reg_for_constants.append(result);
1454 return result;
1455 }
1456
1457 // Various barriers
1458
1459 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val,
1460 bool do_load, bool patch, CodeEmitInfo* info) {
1461 // Do the pre-write barrier, if any.
1462 switch (_bs->kind()) {
1463 #if INCLUDE_ALL_GCS
1464 case BarrierSet::G1BarrierSet:
1465 G1BarrierSet_pre_barrier(addr_opr, pre_val, do_load, patch, info);
1466 break;
1467 #endif // INCLUDE_ALL_GCS
1468 case BarrierSet::CardTableBarrierSet:
1469 // No pre barriers
1470 break;
1471 default :
1472 ShouldNotReachHere();
1473
1474 }
1475 }
1476
1477 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) {
1478 switch (_bs->kind()) {
1479 #if INCLUDE_ALL_GCS
1480 case BarrierSet::G1BarrierSet:
1481 G1BarrierSet_post_barrier(addr, new_val);
1482 break;
1483 #endif // INCLUDE_ALL_GCS
1484 case BarrierSet::CardTableBarrierSet:
1485 CardTableBarrierSet_post_barrier(addr, new_val);
1486 break;
1487 default :
1488 ShouldNotReachHere();
1489 }
1490 }
1491
1492 ////////////////////////////////////////////////////////////////////////
1493 #if INCLUDE_ALL_GCS
1494
1495 void LIRGenerator::G1BarrierSet_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val,
1496 bool do_load, bool patch, CodeEmitInfo* info) {
1497 // First we test whether marking is in progress.
1498 BasicType flag_type;
1499 if (in_bytes(SATBMarkQueue::byte_width_of_active()) == 4) {
1500 flag_type = T_INT;
1501 } else {
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1447 }
1448 }
1449
1450 LIR_Opr result = new_register(t);
1451 __ move((LIR_Opr)c, result);
1452 _constants.append(c);
1453 _reg_for_constants.append(result);
1454 return result;
1455 }
1456
1457 // Various barriers
1458
1459 void LIRGenerator::pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val,
1460 bool do_load, bool patch, CodeEmitInfo* info) {
1461 // Do the pre-write barrier, if any.
1462 switch (_bs->kind()) {
1463 #if INCLUDE_ALL_GCS
1464 case BarrierSet::G1BarrierSet:
1465 G1BarrierSet_pre_barrier(addr_opr, pre_val, do_load, patch, info);
1466 break;
1467 case BarrierSet::Epsilon:
1468 // No barriers
1469 break;
1470 #endif // INCLUDE_ALL_GCS
1471 case BarrierSet::CardTableBarrierSet:
1472 // No pre barriers
1473 break;
1474 default :
1475 ShouldNotReachHere();
1476
1477 }
1478 }
1479
1480 void LIRGenerator::post_barrier(LIR_OprDesc* addr, LIR_OprDesc* new_val) {
1481 switch (_bs->kind()) {
1482 #if INCLUDE_ALL_GCS
1483 case BarrierSet::G1BarrierSet:
1484 G1BarrierSet_post_barrier(addr, new_val);
1485 break;
1486 case BarrierSet::Epsilon:
1487 // No barriers
1488 break;
1489 #endif // INCLUDE_ALL_GCS
1490 case BarrierSet::CardTableBarrierSet:
1491 CardTableBarrierSet_post_barrier(addr, new_val);
1492 break;
1493 default :
1494 ShouldNotReachHere();
1495 }
1496 }
1497
1498 ////////////////////////////////////////////////////////////////////////
1499 #if INCLUDE_ALL_GCS
1500
1501 void LIRGenerator::G1BarrierSet_pre_barrier(LIR_Opr addr_opr, LIR_Opr pre_val,
1502 bool do_load, bool patch, CodeEmitInfo* info) {
1503 // First we test whether marking is in progress.
1504 BasicType flag_type;
1505 if (in_bytes(SATBMarkQueue::byte_width_of_active()) == 4) {
1506 flag_type = T_INT;
1507 } else {
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