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 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 8 | #include "src/compiler/node-cache.h" |
| 9 | |
| 10 | namespace v8 { |
| 11 | namespace internal { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 12 | |
| 13 | // Forward declarations. |
| 14 | class ExternalReference; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 15 | class HeapObject; |
| 16 | template <typename> |
| 17 | class Handle; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 18 | |
| 19 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 20 | namespace compiler { |
| 21 | |
| 22 | // Bundles various caches for common nodes. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 23 | class CommonNodeCache final { |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 24 | public: |
| 25 | explicit CommonNodeCache(Zone* zone) : zone_(zone) {} |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 26 | ~CommonNodeCache() {} |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 27 | |
| 28 | Node** FindInt32Constant(int32_t value) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 29 | return int32_constants_.Find(zone(), value); |
| 30 | } |
| 31 | |
| 32 | Node** FindInt64Constant(int64_t value) { |
| 33 | return int64_constants_.Find(zone(), value); |
| 34 | } |
| 35 | |
| 36 | Node** FindFloat32Constant(float value) { |
| 37 | // We canonicalize float constants at the bit representation level. |
| 38 | return float32_constants_.Find(zone(), bit_cast<int32_t>(value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 39 | } |
| 40 | |
| 41 | Node** FindFloat64Constant(double value) { |
| 42 | // We canonicalize double constants at the bit representation level. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 43 | return float64_constants_.Find(zone(), bit_cast<int64_t>(value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 44 | } |
| 45 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 46 | Node** FindExternalConstant(ExternalReference value); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 47 | |
| 48 | Node** FindNumberConstant(double value) { |
| 49 | // We canonicalize double constants at the bit representation level. |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 50 | return number_constants_.Find(zone(), bit_cast<int64_t>(value)); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 51 | } |
| 52 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 53 | Node** FindHeapConstant(Handle<HeapObject> value); |
| 54 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 55 | // Return all nodes from the cache. |
| 56 | void GetCachedNodes(ZoneVector<Node*>* nodes); |
| 57 | |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 58 | Zone* zone() const { return zone_; } |
| 59 | |
| 60 | private: |
| 61 | Int32NodeCache int32_constants_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 62 | Int64NodeCache int64_constants_; |
| 63 | Int32NodeCache float32_constants_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 64 | Int64NodeCache float64_constants_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 65 | IntPtrNodeCache external_constants_; |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 66 | Int64NodeCache number_constants_; |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame^] | 67 | IntPtrNodeCache heap_constants_; |
| 68 | Zone* const zone_; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 69 | |
| 70 | DISALLOW_COPY_AND_ASSIGN(CommonNodeCache); |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 71 | }; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 72 | |
| 73 | } // namespace compiler |
| 74 | } // namespace internal |
| 75 | } // namespace v8 |
Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 76 | |
| 77 | #endif // V8_COMPILER_COMMON_NODE_CACHE_H_ |