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      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_
     52