Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame^] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | #ifndef V8_COMPILER_COMMON_NODE_CACHE_H_ |
| 6 | #define V8_COMPILER_COMMON_NODE_CACHE_H_ |
| 7 | |
| 8 | #include "src/assembler.h" |
| 9 | #include "src/compiler/node-cache.h" |
| 10 | |
| 11 | namespace v8 { |
| 12 | namespace internal { |
| 13 | namespace compiler { |
| 14 | |
| 15 | // Bundles various caches for common nodes. |
| 16 | class CommonNodeCache FINAL : public ZoneObject { |
| 17 | public: |
| 18 | explicit CommonNodeCache(Zone* zone) : zone_(zone) {} |
| 19 | |
| 20 | Node** FindInt32Constant(int32_t value) { |
| 21 | return int32_constants_.Find(zone_, value); |
| 22 | } |
| 23 | |
| 24 | Node** FindFloat64Constant(double value) { |
| 25 | // We canonicalize double constants at the bit representation level. |
| 26 | return float64_constants_.Find(zone_, bit_cast<int64_t>(value)); |
| 27 | } |
| 28 | |
| 29 | Node** FindExternalConstant(ExternalReference reference) { |
| 30 | return external_constants_.Find(zone_, reference.address()); |
| 31 | } |
| 32 | |
| 33 | Node** FindNumberConstant(double value) { |
| 34 | // We canonicalize double constants at the bit representation level. |
| 35 | return number_constants_.Find(zone_, bit_cast<int64_t>(value)); |
| 36 | } |
| 37 | |
| 38 | Zone* zone() const { return zone_; } |
| 39 | |
| 40 | private: |
| 41 | Int32NodeCache int32_constants_; |
| 42 | Int64NodeCache float64_constants_; |
| 43 | PtrNodeCache external_constants_; |
| 44 | Int64NodeCache number_constants_; |
| 45 | Zone* zone_; |
| 46 | }; |
| 47 | } |
| 48 | } |
| 49 | } // namespace v8::internal::compiler |
| 50 | |
| 51 | #endif // V8_COMPILER_COMMON_NODE_CACHE_H_ |