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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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1580 "};" | 1580 "};" |
1581 "foo()"; | 1581 "foo()"; |
1582 Handle<String> source = factory->InternalizeUtf8String(raw_source); | 1582 Handle<String> source = factory->InternalizeUtf8String(raw_source); |
1583 Handle<Context> native_context = isolate->native_context(); | 1583 Handle<Context> native_context = isolate->native_context(); |
1584 | 1584 |
1585 { | 1585 { |
1586 v8::HandleScope scope(CcTest::isolate()); | 1586 v8::HandleScope scope(CcTest::isolate()); |
1587 CompileRun(raw_source); | 1587 CompileRun(raw_source); |
1588 } | 1588 } |
1589 | 1589 |
1590 // The script should be in the cache now. | 1590 // On first compilation, only a hash is inserted in the code cache. We can't |
| 1591 // find that value. |
1591 MaybeHandle<SharedFunctionInfo> info = compilation_cache->LookupScript( | 1592 MaybeHandle<SharedFunctionInfo> info = compilation_cache->LookupScript( |
1592 source, Handle<Object>(), 0, 0, | 1593 source, Handle<Object>(), 0, 0, |
1593 v8::ScriptOriginOptions(false, true, false), native_context, | 1594 v8::ScriptOriginOptions(false, true, false), native_context, |
1594 language_mode); | 1595 language_mode); |
| 1596 CHECK(info.is_null()); |
| 1597 |
| 1598 { |
| 1599 v8::HandleScope scope(CcTest::isolate()); |
| 1600 CompileRun(raw_source); |
| 1601 } |
| 1602 |
| 1603 // On second compilation, the hash is replaced by a real cache entry mapping |
| 1604 // the source to the shared function info containing the code. |
| 1605 info = compilation_cache->LookupScript( |
| 1606 source, Handle<Object>(), 0, 0, |
| 1607 v8::ScriptOriginOptions(false, true, false), native_context, |
| 1608 language_mode); |
1595 CHECK(!info.is_null()); | 1609 CHECK(!info.is_null()); |
1596 | 1610 |
1597 // Check that the code cache entry survives at least on GC. | 1611 // Check that the code cache entry survives at least on GC. |
1598 // (Unless --optimize-for-size, in which case it might get collected | 1612 // (Unless --optimize-for-size, in which case it might get collected |
1599 // immediately.) | 1613 // immediately.) |
1600 if (!FLAG_optimize_for_size) { | 1614 if (!FLAG_optimize_for_size) { |
1601 heap->CollectAllGarbage(); | 1615 heap->CollectAllGarbage(); |
1602 info = compilation_cache->LookupScript( | 1616 info = compilation_cache->LookupScript( |
1603 source, Handle<Object>(), 0, 0, | 1617 source, Handle<Object>(), 0, 0, |
1604 v8::ScriptOriginOptions(false, true, false), native_context, | 1618 v8::ScriptOriginOptions(false, true, false), native_context, |
1605 language_mode); | 1619 language_mode); |
1606 CHECK(!info.is_null()); | 1620 CHECK(!info.is_null()); |
1607 } | 1621 } |
1608 | 1622 |
1609 // Progress code age until it's old and ready for GC. | 1623 // Progress code age until it's old and ready for GC. |
1610 while (!info.ToHandleChecked()->code()->IsOld()) { | 1624 while (!info.ToHandleChecked()->code()->IsOld()) { |
1611 // To guarantee progress, we have to MakeOlder with different parities. | 1625 // To guarantee progress, we have to MakeOlder with different parities. |
1612 // We can't just use NO_MARKING_PARITY, since e.g. kExecutedOnceCodeAge is | 1626 // We can't just use NO_MARKING_PARITY, since e.g. kExecutedOnceCodeAge is |
1613 // always NO_MARKING_PARITY and the code age only progresses if the parity | 1627 // always NO_MARKING_PARITY and the code age only progresses if the parity |
1614 // is different. | 1628 // is different. |
1615 info.ToHandleChecked()->code()->MakeOlder(ODD_MARKING_PARITY); | 1629 info.ToHandleChecked()->code()->MakeOlder(ODD_MARKING_PARITY); |
1616 info.ToHandleChecked()->code()->MakeOlder(EVEN_MARKING_PARITY); | 1630 info.ToHandleChecked()->code()->MakeOlder(EVEN_MARKING_PARITY); |
1617 } | 1631 } |
1618 | 1632 |
1619 heap->CollectAllGarbage(); | 1633 heap->CollectAllGarbage(); |
1620 // Ensure code aging cleared the entry from the cache. | 1634 // Ensure code aging cleared the entry from the cache. |
1621 info = compilation_cache->LookupScript( | 1635 info = compilation_cache->LookupScript( |
1622 source, Handle<Object>(), 0, 0, | 1636 source, Handle<Object>(), 0, 0, |
1623 v8::ScriptOriginOptions(false, true, false), native_context, | 1637 v8::ScriptOriginOptions(false, true, false), native_context, |
| 1638 language_mode); |
| 1639 CHECK(info.is_null()); |
| 1640 |
| 1641 { |
| 1642 v8::HandleScope scope(CcTest::isolate()); |
| 1643 CompileRun(raw_source); |
| 1644 } |
| 1645 |
| 1646 // On first compilation, only a hash is inserted in the code cache. We can't |
| 1647 // find that value. |
| 1648 info = compilation_cache->LookupScript( |
| 1649 source, Handle<Object>(), 0, 0, |
| 1650 v8::ScriptOriginOptions(false, true, false), native_context, |
| 1651 language_mode); |
| 1652 CHECK(info.is_null()); |
| 1653 |
| 1654 for (int i = 0; i < CompilationCacheTable::kHashGenerations; i++) { |
| 1655 compilation_cache->MarkCompactPrologue(); |
| 1656 } |
| 1657 |
| 1658 { |
| 1659 v8::HandleScope scope(CcTest::isolate()); |
| 1660 CompileRun(raw_source); |
| 1661 } |
| 1662 |
| 1663 // If we aged the cache before caching the script, ensure that we didn't cache |
| 1664 // on next compilation. |
| 1665 info = compilation_cache->LookupScript( |
| 1666 source, Handle<Object>(), 0, 0, |
| 1667 v8::ScriptOriginOptions(false, true, false), native_context, |
1624 language_mode); | 1668 language_mode); |
1625 CHECK(info.is_null()); | 1669 CHECK(info.is_null()); |
1626 } | 1670 } |
1627 | 1671 |
1628 | 1672 |
1629 static void OptimizeEmptyFunction(const char* name) { | 1673 static void OptimizeEmptyFunction(const char* name) { |
1630 HandleScope scope(CcTest::i_isolate()); | 1674 HandleScope scope(CcTest::i_isolate()); |
1631 EmbeddedVector<char, 256> source; | 1675 EmbeddedVector<char, 256> source; |
1632 SNPrintF(source, | 1676 SNPrintF(source, |
1633 "function %s() { return 0; }" | 1677 "function %s() { return 0; }" |
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6558 heap->RightTrimFixedArray<Heap::CONCURRENT_TO_SWEEPER>(arrays[j], N - 1); | 6602 heap->RightTrimFixedArray<Heap::CONCURRENT_TO_SWEEPER>(arrays[j], N - 1); |
6559 } | 6603 } |
6560 } | 6604 } |
6561 // Force allocation from the free list. | 6605 // Force allocation from the free list. |
6562 heap->set_force_oom(true); | 6606 heap->set_force_oom(true); |
6563 heap->CollectGarbage(OLD_SPACE); | 6607 heap->CollectGarbage(OLD_SPACE); |
6564 } | 6608 } |
6565 | 6609 |
6566 } // namespace internal | 6610 } // namespace internal |
6567 } // namespace v8 | 6611 } // namespace v8 |
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