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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 // 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 #ifndef V8_STUB_CACHE_H_ | 5 #ifndef V8_STUB_CACHE_H_ |
6 #define V8_STUB_CACHE_H_ | 6 #define V8_STUB_CACHE_H_ |
7 | 7 |
8 #include "src/macro-assembler.h" | 8 #include "src/macro-assembler.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
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67 } | 67 } |
68 | 68 |
69 StubCache::Entry* first_entry(StubCache::Table table) { | 69 StubCache::Entry* first_entry(StubCache::Table table) { |
70 switch (table) { | 70 switch (table) { |
71 case StubCache::kPrimary: | 71 case StubCache::kPrimary: |
72 return StubCache::primary_; | 72 return StubCache::primary_; |
73 case StubCache::kSecondary: | 73 case StubCache::kSecondary: |
74 return StubCache::secondary_; | 74 return StubCache::secondary_; |
75 } | 75 } |
76 UNREACHABLE(); | 76 UNREACHABLE(); |
77 return NULL; | 77 return nullptr; |
78 } | 78 } |
79 | 79 |
80 Isolate* isolate() { return isolate_; } | 80 Isolate* isolate() { return isolate_; } |
81 Code::Kind ic_kind() const { return ic_kind_; } | 81 Code::Kind ic_kind() const { return ic_kind_; } |
82 | 82 |
83 // Setting the entry size such that the index is shifted by Name::kHashShift | 83 // Setting the entry size such that the index is shifted by Name::kHashShift |
84 // is convenient; shifting down the length field (to extract the hash code) | 84 // is convenient; shifting down the length field (to extract the hash code) |
85 // automatically discards the hash bit field. | 85 // automatically discards the hash bit field. |
86 static const int kCacheIndexShift = Name::kHashShift; | 86 static const int kCacheIndexShift = Name::kHashShift; |
87 | 87 |
88 static const int kPrimaryTableBits = 11; | 88 static const int kPrimaryTableBits = 11; |
89 static const int kPrimaryTableSize = (1 << kPrimaryTableBits); | 89 static const int kPrimaryTableSize = (1 << kPrimaryTableBits); |
90 static const int kSecondaryTableBits = 9; | 90 static const int kSecondaryTableBits = 9; |
91 static const int kSecondaryTableSize = (1 << kSecondaryTableBits); | 91 static const int kSecondaryTableSize = (1 << kSecondaryTableBits); |
92 | 92 |
93 // Some magic number used in primary and secondary hash computations. | 93 // Some magic number used in primary and secondary hash computations. |
94 static const int kPrimaryMagic = 0x3d532433; | 94 static const int kPrimaryMagic = 0x3d532433; |
95 static const int kSecondaryMagic = 0xb16b00b5; | 95 static const int kSecondaryMagic = 0xb16ca6e5; |
96 | 96 |
97 static int PrimaryOffsetForTesting(Name* name, Map* map) { | 97 static int PrimaryOffsetForTesting(Name* name, Map* map) { |
98 return PrimaryOffset(name, map); | 98 return PrimaryOffset(name, map); |
99 } | 99 } |
100 | 100 |
101 static int SecondaryOffsetForTesting(Name* name, int seed) { | 101 static int SecondaryOffsetForTesting(Name* name, int seed) { |
102 return SecondaryOffset(name, seed); | 102 return SecondaryOffset(name, seed); |
103 } | 103 } |
104 | 104 |
105 // The constructor is made public only for the purposes of testing. | 105 // The constructor is made public only for the purposes of testing. |
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161 | 161 |
162 friend class Isolate; | 162 friend class Isolate; |
163 friend class SCTableReference; | 163 friend class SCTableReference; |
164 | 164 |
165 DISALLOW_COPY_AND_ASSIGN(StubCache); | 165 DISALLOW_COPY_AND_ASSIGN(StubCache); |
166 }; | 166 }; |
167 } // namespace internal | 167 } // namespace internal |
168 } // namespace v8 | 168 } // namespace v8 |
169 | 169 |
170 #endif // V8_STUB_CACHE_H_ | 170 #endif // V8_STUB_CACHE_H_ |
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