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1 // Copyright 2014 the V8 project authors. All rights reserved. | 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 | 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_COMPILER_SIMPLIFIED_OPERATOR_H_ | 5 #ifndef V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
6 #define V8_COMPILER_SIMPLIFIED_OPERATOR_H_ | 6 #define V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
7 | 7 |
| 8 #include <iosfwd> |
| 9 |
8 #include "src/compiler/machine-type.h" | 10 #include "src/compiler/machine-type.h" |
9 #include "src/handles.h" | 11 #include "src/handles.h" |
10 | 12 |
11 namespace v8 { | 13 namespace v8 { |
12 namespace internal { | 14 namespace internal { |
13 | 15 |
14 // Forward declarations. | 16 // Forward declarations. |
15 template <class> | 17 template <class> |
16 class TypeImpl; | 18 class TypeImpl; |
17 struct ZoneTypeConfig; | 19 struct ZoneTypeConfig; |
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37 BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged. | 39 BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged. |
38 int offset; // offset of the field, without tag. | 40 int offset; // offset of the field, without tag. |
39 Handle<Name> name; // debugging only. | 41 Handle<Name> name; // debugging only. |
40 Type* type; // type of the field. | 42 Type* type; // type of the field. |
41 MachineType machine_type; // machine type of the field. | 43 MachineType machine_type; // machine type of the field. |
42 | 44 |
43 int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; } | 45 int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; } |
44 }; | 46 }; |
45 | 47 |
46 | 48 |
| 49 enum BoundsCheckMode { kNoBoundsCheck, kTypedArrayBoundsCheck }; |
| 50 |
| 51 std::ostream& operator<<(std::ostream&, BoundsCheckMode); |
| 52 |
| 53 |
47 // An access descriptor for loads/stores of indexed structures like characters | 54 // An access descriptor for loads/stores of indexed structures like characters |
48 // in strings or off-heap backing stores. Accesses from either tagged or | 55 // in strings or off-heap backing stores. Accesses from either tagged or |
49 // untagged base pointers are supported; untagging is done automatically during | 56 // untagged base pointers are supported; untagging is done automatically during |
50 // lowering. | 57 // lowering. |
51 struct ElementAccess { | 58 struct ElementAccess { |
| 59 BoundsCheckMode bounds_check; // specifies the bounds checking mode. |
52 BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged. | 60 BaseTaggedness base_is_tagged; // specifies if the base pointer is tagged. |
53 int header_size; // size of the header, without tag. | 61 int header_size; // size of the header, without tag. |
54 Type* type; // type of the element. | 62 Type* type; // type of the element. |
55 MachineType machine_type; // machine type of the element. | 63 MachineType machine_type; // machine type of the element. |
56 | 64 |
57 int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; } | 65 int tag() const { return base_is_tagged == kTaggedBase ? kHeapObjectTag : 0; } |
58 }; | 66 }; |
59 | 67 |
60 bool operator==(ElementAccess const& lhs, ElementAccess const& rhs); | 68 bool operator==(ElementAccess const& lhs, ElementAccess const& rhs); |
61 bool operator!=(ElementAccess const& lhs, ElementAccess const& rhs); | 69 bool operator!=(ElementAccess const& lhs, ElementAccess const& rhs); |
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143 Zone* const zone_; | 151 Zone* const zone_; |
144 | 152 |
145 DISALLOW_COPY_AND_ASSIGN(SimplifiedOperatorBuilder); | 153 DISALLOW_COPY_AND_ASSIGN(SimplifiedOperatorBuilder); |
146 }; | 154 }; |
147 | 155 |
148 } // namespace compiler | 156 } // namespace compiler |
149 } // namespace internal | 157 } // namespace internal |
150 } // namespace v8 | 158 } // namespace v8 |
151 | 159 |
152 #endif // V8_COMPILER_SIMPLIFIED_OPERATOR_H_ | 160 #endif // V8_COMPILER_SIMPLIFIED_OPERATOR_H_ |
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