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