OLD | NEW |
1 // Copyright 2016 the V8 project authors. All rights reserved. | 1 // Copyright 2016 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/list.h" | 7 #include "src/list.h" |
8 #include "src/objects.h" | 8 #include "src/objects.h" |
9 #include "test/cctest/cctest.h" | 9 #include "test/cctest/cctest.h" |
10 | 10 |
11 namespace v8 { | 11 namespace v8 { |
12 namespace internal { | 12 namespace internal { |
13 | 13 |
14 namespace { | 14 namespace { |
15 | 15 |
16 static Handle<Code> GetDummyCode(Isolate* isolate) { | 16 static Handle<Code> GetDummyCode(Isolate* isolate) { |
17 CodeDesc desc = {nullptr, // buffer | 17 CodeDesc desc = {nullptr, // buffer |
18 0, // buffer_size | 18 0, // buffer_size |
19 0, // instr_size | 19 0, // instr_size |
20 0, // reloc_size | 20 0, // reloc_size |
21 0, // constant_pool_size | 21 0, // constant_pool_size |
22 nullptr}; // origin | 22 nullptr}; // origin |
23 Code::Flags flags = Code::ComputeFlags(Code::LOAD_IC, MONOMORPHIC, | 23 Code::Flags flags = |
24 kNoExtraICState, kCacheOnReceiver); | 24 Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnReceiver); |
25 Handle<Code> self_ref; | 25 Handle<Code> self_ref; |
26 return isolate->factory()->NewCode(desc, flags, self_ref); | 26 return isolate->factory()->NewCode(desc, flags, self_ref); |
27 } | 27 } |
28 | 28 |
29 } // namespace | 29 } // namespace |
30 | 30 |
31 TEST(CodeCache) { | 31 TEST(CodeCache) { |
32 CcTest::InitializeVM(); | 32 CcTest::InitializeVM(); |
33 Isolate* isolate = CcTest::i_isolate(); | 33 Isolate* isolate = CcTest::i_isolate(); |
34 Factory* factory = isolate->factory(); | 34 Factory* factory = isolate->factory(); |
35 HandleScope handle_scope(isolate); | 35 HandleScope handle_scope(isolate); |
36 | 36 |
37 Handle<Map> map = | 37 Handle<Map> map = |
38 factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize, FAST_ELEMENTS); | 38 factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize, FAST_ELEMENTS); |
39 | 39 |
40 // This number should be large enough to cause the code cache to use its | 40 // This number should be large enough to cause the code cache to use its |
41 // hash table storage format. | 41 // hash table storage format. |
42 static const int kEntries = 150; | 42 static const int kEntries = 150; |
43 | 43 |
44 // Prepare name/code pairs. | 44 // Prepare name/code pairs. |
45 List<Handle<Name>> names(kEntries); | 45 List<Handle<Name>> names(kEntries); |
46 List<Handle<Code>> codes(kEntries); | 46 List<Handle<Code>> codes(kEntries); |
47 for (int i = 0; i < kEntries; i++) { | 47 for (int i = 0; i < kEntries; i++) { |
48 names.Add(isolate->factory()->NewSymbol()); | 48 names.Add(isolate->factory()->NewSymbol()); |
49 codes.Add(GetDummyCode(isolate)); | 49 codes.Add(GetDummyCode(isolate)); |
50 } | 50 } |
51 Handle<Name> bad_name = isolate->factory()->NewSymbol(); | 51 Handle<Name> bad_name = isolate->factory()->NewSymbol(); |
52 Code::Flags bad_flags = Code::ComputeFlags( | 52 Code::Flags bad_flags = |
53 Code::LOAD_IC, MONOMORPHIC, kNoExtraICState, kCacheOnPrototype); | 53 Code::ComputeFlags(Code::LOAD_IC, kNoExtraICState, kCacheOnPrototype); |
54 DCHECK(bad_flags != codes[0]->flags()); | 54 DCHECK(bad_flags != codes[0]->flags()); |
55 | 55 |
56 // Cache name/code pairs. | 56 // Cache name/code pairs. |
57 for (int i = 0; i < kEntries; i++) { | 57 for (int i = 0; i < kEntries; i++) { |
58 Handle<Name> name = names.at(i); | 58 Handle<Name> name = names.at(i); |
59 Handle<Code> code = codes.at(i); | 59 Handle<Code> code = codes.at(i); |
60 Map::UpdateCodeCache(map, name, code); | 60 Map::UpdateCodeCache(map, name, code); |
61 CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags())); | 61 CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags())); |
62 CHECK_NULL(map->LookupInCodeCache(*name, bad_flags)); | 62 CHECK_NULL(map->LookupInCodeCache(*name, bad_flags)); |
63 } | 63 } |
64 CHECK_NULL(map->LookupInCodeCache(*bad_name, bad_flags)); | 64 CHECK_NULL(map->LookupInCodeCache(*bad_name, bad_flags)); |
65 | 65 |
66 // Check that lookup works not only right after storing. | 66 // Check that lookup works not only right after storing. |
67 for (int i = 0; i < kEntries; i++) { | 67 for (int i = 0; i < kEntries; i++) { |
68 Handle<Name> name = names.at(i); | 68 Handle<Name> name = names.at(i); |
69 Handle<Code> code = codes.at(i); | 69 Handle<Code> code = codes.at(i); |
70 CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags())); | 70 CHECK_EQ(*code, map->LookupInCodeCache(*name, code->flags())); |
71 } | 71 } |
72 } | 72 } |
73 | 73 |
74 } // namespace internal | 74 } // namespace internal |
75 } // namespace v8 | 75 } // namespace v8 |
OLD | NEW |