src/ic/access-compiler.h

   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/macro-assembler.h"
  10 #include "src/objects.h"
  11
  12 namespace v8 {
  13 namespace internal {
  14
  15
  16 class 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(kind)),
  40         kind_(kind),
  41         cache_holder_(cache_holder),
  42         isolate_(isolate),
  43         masm_(isolate, NULL, 256) {
  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   Register scratch3() const { return registers_[4]; }
  62
  63   static Register* GetCallingConvention(Code::Kind);
  64   static Register* load_calling_convention();
  65   static Register* store_calling_convention();
  66   static Register* keyed_store_calling_convention();
  67
  68   Register* registers_;
  69
  70   static void GenerateTailCall(MacroAssembler* masm, Handle<Code> code);
  71
  72   Handle<Code> GetCodeWithFlags(Code::Flags flags, const char* name);
  73   Handle<Code> GetCodeWithFlags(Code::Flags flags, Handle<Name> name);
  74
  75  private:
  76   Code::Kind kind_;
  77   CacheHolderFlag cache_holder_;
  78
  79   Isolate* isolate_;
  80   MacroAssembler masm_;
  81   // Ensure that MacroAssembler has a reasonable size.
  82   STATIC_ASSERT(sizeof(MacroAssembler) < 128 * kPointerSize);
  83 };
  84 }  // namespace internal
  85 }  // namespace v8
  86
  87 #endif  // V8_IC_ACCESS_COMPILER_H_