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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef V8_IC_STATE_H_ | 5 #ifndef V8_IC_STATE_H_ |
6 #define V8_IC_STATE_H_ | 6 #define V8_IC_STATE_H_ |
7 | 7 |
8 #include "src/macro-assembler.h" | 8 #include "src/macro-assembler.h" |
9 | 9 |
10 namespace v8 { | 10 namespace v8 { |
11 namespace internal { | 11 namespace internal { |
12 | 12 |
13 | 13 |
14 const int kMaxKeyedPolymorphism = 4; | 14 const int kMaxKeyedPolymorphism = 4; |
15 | 15 |
16 | 16 |
17 class ICUtility : public AllStatic { | 17 class ICUtility : public AllStatic { |
18 public: | 18 public: |
19 // Clear the inline cache to initial state. | 19 // Clear the inline cache to initial state. |
20 static void Clear(Isolate* isolate, Address address, Address constant_pool); | 20 static void Clear(Isolate* isolate, Address address, Address constant_pool); |
21 }; | 21 }; |
22 | 22 |
23 | 23 |
24 class CallICState final BASE_EMBEDDED { | 24 class CallICState final BASE_EMBEDDED { |
25 public: | 25 public: |
26 explicit CallICState(ExtraICState extra_ic_state) | 26 explicit CallICState(ExtraICState extra_ic_state) |
27 : bit_field_(extra_ic_state) {} | 27 : bit_field_(extra_ic_state) {} |
28 CallICState(int argc, ConvertReceiverMode convert_mode, | 28 CallICState(int argc, ConvertReceiverMode convert_mode, |
29 TailCallMode tail_call_mode) | 29 TailCallMode tail_call_mode, bool is_argc_in_reg = false) |
30 : bit_field_(ArgcBits::encode(argc) | | 30 : bit_field_(ArgcBits::encode(argc) | |
31 ConvertModeBits::encode(convert_mode) | | 31 ConvertModeBits::encode(convert_mode) | |
32 TailCallModeBits::encode(tail_call_mode)) {} | 32 TailCallModeBits::encode(tail_call_mode) | |
| 33 ArgcInRegBits::encode(is_argc_in_reg)) {} |
33 | 34 |
34 ExtraICState GetExtraICState() const { return bit_field_; } | 35 ExtraICState GetExtraICState() const { return bit_field_; } |
35 | 36 |
36 static void GenerateAheadOfTime(Isolate*, | 37 static void GenerateAheadOfTime(Isolate*, |
37 void (*Generate)(Isolate*, | 38 void (*Generate)(Isolate*, |
38 const CallICState&)); | 39 const CallICState&)); |
39 | 40 |
40 int argc() const { return ArgcBits::decode(bit_field_); } | 41 int argc() const { return ArgcBits::decode(bit_field_); } |
41 ConvertReceiverMode convert_mode() const { | 42 ConvertReceiverMode convert_mode() const { |
42 return ConvertModeBits::decode(bit_field_); | 43 return ConvertModeBits::decode(bit_field_); |
43 } | 44 } |
44 TailCallMode tail_call_mode() const { | 45 TailCallMode tail_call_mode() const { |
45 return TailCallModeBits::decode(bit_field_); | 46 return TailCallModeBits::decode(bit_field_); |
46 } | 47 } |
| 48 bool argc_in_register() { return ArgcInRegBits::decode(bit_field_); } |
47 | 49 |
48 private: | 50 private: |
49 typedef BitField<int, 0, Code::kArgumentsBits> ArgcBits; | 51 typedef BitField<int, 0, Code::kArgumentsBits> ArgcBits; |
50 typedef BitField<ConvertReceiverMode, ArgcBits::kNext, 2> ConvertModeBits; | 52 typedef BitField<ConvertReceiverMode, ArgcBits::kNext, 2> ConvertModeBits; |
51 typedef BitField<TailCallMode, ConvertModeBits::kNext, 1> TailCallModeBits; | 53 typedef BitField<TailCallMode, ConvertModeBits::kNext, 1> TailCallModeBits; |
| 54 typedef BitField<bool, TailCallModeBits::kNext, 1> ArgcInRegBits; |
52 | 55 |
53 int const bit_field_; | 56 int const bit_field_; |
54 }; | 57 }; |
55 | 58 |
56 | 59 |
57 std::ostream& operator<<(std::ostream& os, const CallICState& s); | 60 std::ostream& operator<<(std::ostream& os, const CallICState& s); |
58 | 61 |
59 | 62 |
60 class BinaryOpICState final BASE_EMBEDDED { | 63 class BinaryOpICState final BASE_EMBEDDED { |
61 public: | 64 public: |
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249 << LanguageModeState::kShift; | 252 << LanguageModeState::kShift; |
250 | 253 |
251 private: | 254 private: |
252 const ExtraICState state_; | 255 const ExtraICState state_; |
253 }; | 256 }; |
254 | 257 |
255 } // namespace internal | 258 } // namespace internal |
256 } // namespace v8 | 259 } // namespace v8 |
257 | 260 |
258 #endif // V8_IC_STATE_H_ | 261 #endif // V8_IC_STATE_H_ |
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