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: CommonNodeCache(Zone * zone)18 explicit CommonNodeCache(Zone* zone) : zone_(zone) {} 19 FindInt32Constant(int32_t value)20 Node** FindInt32Constant(int32_t value) { 21 return int32_constants_.Find(zone_, value); 22 } 23 FindFloat64Constant(double value)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 FindExternalConstant(ExternalReference reference)29 Node** FindExternalConstant(ExternalReference reference) { 30 return external_constants_.Find(zone_, reference.address()); 31 } 32 FindNumberConstant(double value)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 zone()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_ 52