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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. | 5 #include "vm/globals.h" // Needed here to get TARGET_ARCH_IA32. |
6 #if defined(TARGET_ARCH_IA32) | 6 #if defined(TARGET_ARCH_IA32) |
7 | 7 |
8 #include "vm/intermediate_language.h" | 8 #include "vm/intermediate_language.h" |
9 | 9 |
10 #include "vm/dart_entry.h" | 10 #include "vm/dart_entry.h" |
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1487 } else { | 1487 } else { |
1488 __ movl(field_length_operand, | 1488 __ movl(field_length_operand, |
1489 Immediate(Smi::RawValue(Field::kNoFixedLength))); | 1489 Immediate(Smi::RawValue(Field::kNoFixedLength))); |
1490 } | 1490 } |
1491 } | 1491 } |
1492 } | 1492 } |
1493 | 1493 |
1494 if (!ok_is_fall_through) { | 1494 if (!ok_is_fall_through) { |
1495 __ jmp(&ok); | 1495 __ jmp(&ok); |
1496 } | 1496 } |
| 1497 |
| 1498 if (deopt == NULL) { |
| 1499 ASSERT(!compiler->is_optimizing()); |
| 1500 __ Bind(fail); |
| 1501 |
| 1502 __ cmpl(FieldAddress(field_reg, Field::guarded_cid_offset()), |
| 1503 Immediate(kDynamicCid)); |
| 1504 __ j(EQUAL, &ok); |
| 1505 |
| 1506 __ pushl(field_reg); |
| 1507 __ pushl(value_reg); |
| 1508 __ CallRuntime(kUpdateFieldCidRuntimeEntry, 2); |
| 1509 __ Drop(2); // Drop the field and the value. |
| 1510 } |
1497 } else { | 1511 } else { |
| 1512 ASSERT(compiler->is_optimizing()); |
| 1513 ASSERT(deopt != NULL); |
| 1514 ASSERT(ok_is_fall_through); |
1498 // Field guard class has been initialized and is known. | 1515 // Field guard class has been initialized and is known. |
1499 if (field_reg != kNoRegister) { | 1516 if (field_reg != kNoRegister) { |
1500 __ LoadObject(field_reg, Field::ZoneHandle(field().raw())); | 1517 __ LoadObject(field_reg, Field::ZoneHandle(field().raw())); |
1501 } | 1518 } |
1502 | 1519 |
1503 if (value_cid == kDynamicCid) { | 1520 if (value_cid == kDynamicCid) { |
1504 // Value's class id is not known. | 1521 // Value's class id is not known. |
1505 __ testl(value_reg, Immediate(kSmiTagMask)); | 1522 __ testl(value_reg, Immediate(kSmiTagMask)); |
1506 | 1523 |
1507 if (field_cid != kSmiCid) { | 1524 if (field_cid != kSmiCid) { |
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1530 } | 1547 } |
1531 __ cmpl(value_cid_reg, field_length_operand); | 1548 __ cmpl(value_cid_reg, field_length_operand); |
1532 } | 1549 } |
1533 | 1550 |
1534 if (field().is_nullable() && (field_cid != kNullCid)) { | 1551 if (field().is_nullable() && (field_cid != kNullCid)) { |
1535 __ j(EQUAL, &ok); | 1552 __ j(EQUAL, &ok); |
1536 const Immediate& raw_null = | 1553 const Immediate& raw_null = |
1537 Immediate(reinterpret_cast<intptr_t>(Object::null())); | 1554 Immediate(reinterpret_cast<intptr_t>(Object::null())); |
1538 __ cmpl(value_reg, raw_null); | 1555 __ cmpl(value_reg, raw_null); |
1539 } | 1556 } |
1540 | 1557 __ j(NOT_EQUAL, fail); |
1541 if (ok_is_fall_through) { | |
1542 __ j(NOT_EQUAL, fail); | |
1543 } else { | |
1544 __ j(EQUAL, &ok); | |
1545 } | |
1546 } else { | 1558 } else { |
1547 // Both value's and field's class id is known. | 1559 // Both value's and field's class id is known. |
1548 if ((value_cid != field_cid) && (value_cid != nullability)) { | 1560 if ((value_cid != field_cid) && (value_cid != nullability)) { |
1549 if (ok_is_fall_through) { | 1561 __ jmp(fail); |
1550 __ jmp(fail); | |
1551 } | |
1552 } else if (field_has_length && (value_cid == field_cid)) { | 1562 } else if (field_has_length && (value_cid == field_cid)) { |
1553 ASSERT(value_cid_reg != kNoRegister); | 1563 ASSERT(value_cid_reg != kNoRegister); |
1554 if ((field_cid == kArrayCid) || (field_cid == kImmutableArrayCid)) { | 1564 if ((field_cid == kArrayCid) || (field_cid == kImmutableArrayCid)) { |
1555 // Destroy value_cid_reg (safe because we are finished with it). | 1565 // Destroy value_cid_reg (safe because we are finished with it). |
1556 __ movl(value_cid_reg, | 1566 __ movl(value_cid_reg, |
1557 FieldAddress(value_reg, Array::length_offset())); | 1567 FieldAddress(value_reg, Array::length_offset())); |
1558 } else if (RawObject::IsTypedDataClassId(field_cid)) { | 1568 } else if (RawObject::IsTypedDataClassId(field_cid)) { |
1559 // Destroy value_cid_reg (safe because we are finished with it). | 1569 // Destroy value_cid_reg (safe because we are finished with it). |
1560 __ movl(value_cid_reg, | 1570 __ movl(value_cid_reg, |
1561 FieldAddress(value_reg, TypedData::length_offset())); | 1571 FieldAddress(value_reg, TypedData::length_offset())); |
1562 } | 1572 } |
1563 __ cmpl(value_cid_reg, Immediate(Smi::RawValue(field_length))); | 1573 __ cmpl(value_cid_reg, Immediate(Smi::RawValue(field_length))); |
1564 if (ok_is_fall_through) { | 1574 __ j(NOT_EQUAL, fail); |
1565 __ j(NOT_EQUAL, fail); | |
1566 } | |
1567 } else { | 1575 } else { |
1568 // Nothing to emit. | 1576 UNREACHABLE(); |
1569 ASSERT(!compiler->is_optimizing()); | |
1570 return; | |
1571 } | 1577 } |
1572 } | 1578 } |
1573 } | 1579 } |
1574 | |
1575 if (deopt == NULL) { | |
1576 ASSERT(!compiler->is_optimizing()); | |
1577 __ Bind(fail); | |
1578 | |
1579 __ cmpl(FieldAddress(field_reg, Field::guarded_cid_offset()), | |
1580 Immediate(kDynamicCid)); | |
1581 __ j(EQUAL, &ok); | |
1582 | |
1583 __ pushl(field_reg); | |
1584 __ pushl(value_reg); | |
1585 __ CallRuntime(kUpdateFieldCidRuntimeEntry, 2); | |
1586 __ Drop(2); // Drop the field and the value. | |
1587 } | |
1588 | |
1589 __ Bind(&ok); | 1580 __ Bind(&ok); |
1590 } | 1581 } |
1591 | 1582 |
1592 | 1583 |
1593 LocationSummary* StoreInstanceFieldInstr::MakeLocationSummary() const { | 1584 LocationSummary* StoreInstanceFieldInstr::MakeLocationSummary() const { |
1594 const intptr_t kNumInputs = 2; | 1585 const intptr_t kNumInputs = 2; |
1595 const intptr_t kNumTemps = 0; | 1586 const intptr_t kNumTemps = 0; |
1596 LocationSummary* summary = | 1587 LocationSummary* summary = |
1597 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); | 1588 new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall); |
1598 summary->set_in(0, Location::RequiresRegister()); | 1589 summary->set_in(0, Location::RequiresRegister()); |
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5015 PcDescriptors::kOther, | 5006 PcDescriptors::kOther, |
5016 locs()); | 5007 locs()); |
5017 __ Drop(2); // Discard type arguments and receiver. | 5008 __ Drop(2); // Discard type arguments and receiver. |
5018 } | 5009 } |
5019 | 5010 |
5020 } // namespace dart | 5011 } // namespace dart |
5021 | 5012 |
5022 #undef __ | 5013 #undef __ |
5023 | 5014 |
5024 #endif // defined TARGET_ARCH_IA32 | 5015 #endif // defined TARGET_ARCH_IA32 |
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