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_IC_ACCESS_COMPILER_H_
6#define V8_IC_ACCESS_COMPILER_H_
7
8#include "src/code-stubs.h"
9#include "src/ic/access-compiler-data.h"
10#include "src/macro-assembler.h"
11#include "src/objects.h"
12
13namespace v8 {
14namespace internal {
15
16class PropertyAccessCompiler BASE_EMBEDDED {
17 public:
18  static Builtins::Name MissBuiltin(Code::Kind kind) {
19    switch (kind) {
20      case Code::LOAD_IC:
21        return Builtins::kLoadIC_Miss;
22      case Code::STORE_IC:
23        return Builtins::kStoreIC_Miss;
24      case Code::KEYED_LOAD_IC:
25        return Builtins::kKeyedLoadIC_Miss;
26      case Code::KEYED_STORE_IC:
27        return Builtins::kKeyedStoreIC_Miss;
28      default:
29        UNREACHABLE();
30    }
31    return Builtins::kLoadIC_Miss;
32  }
33
34  static void TailCallBuiltin(MacroAssembler* masm, Builtins::Name name);
35
36 protected:
37  PropertyAccessCompiler(Isolate* isolate, Code::Kind kind,
38                         CacheHolderFlag cache_holder)
39      : registers_(GetCallingConvention(isolate, kind)),
40        kind_(kind),
41        cache_holder_(cache_holder),
42        isolate_(isolate),
43        masm_(isolate, NULL, 256, CodeObjectRequired::kYes) {
44    // TODO(yangguo): remove this once we can serialize IC stubs.
45    masm_.enable_serializer();
46  }
47
48  Code::Kind kind() const { return kind_; }
49  CacheHolderFlag cache_holder() const { return cache_holder_; }
50  MacroAssembler* masm() { return &masm_; }
51  Isolate* isolate() const { return isolate_; }
52  Heap* heap() const { return isolate()->heap(); }
53  Factory* factory() const { return isolate()->factory(); }
54
55  Register receiver() const { return registers_[0]; }
56  Register name() const { return registers_[1]; }
57  Register slot() const;
58  Register vector() const;
59  Register scratch1() const { return registers_[2]; }
60  Register scratch2() const { return registers_[3]; }
61
62  Register* registers_;
63
64  static void GenerateTailCall(MacroAssembler* masm, Handle<Code> code);
65
66  Handle<Code> GetCodeWithFlags(Code::Flags flags, const char* name);
67  Handle<Code> GetCodeWithFlags(Code::Flags flags, Handle<Name> name);
68
69 private:
70  static Register* GetCallingConvention(Isolate* isolate, Code::Kind kind);
71  static void InitializePlatformSpecific(AccessCompilerData* data);
72
73  Code::Kind kind_;
74  CacheHolderFlag cache_holder_;
75
76  Isolate* isolate_;
77  MacroAssembler masm_;
78  // Ensure that MacroAssembler has a reasonable size.
79  STATIC_ASSERT(sizeof(MacroAssembler) < 128 * kPointerSize);
80};
81}  // namespace internal
82}  // namespace v8
83
84#endif  // V8_IC_ACCESS_COMPILER_H_
85