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Side by Side Diff: src/register-allocator.h

Issue 1207006: Rename NumberInfo to TypeInfo.... (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: changed project files Created 10 years, 9 months ago
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1 // Copyright 2008 the V8 project authors. All rights reserved. 1 // Copyright 2008 the V8 project authors. All rights reserved.
2 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 27
28 #ifndef V8_REGISTER_ALLOCATOR_H_ 28 #ifndef V8_REGISTER_ALLOCATOR_H_
29 #define V8_REGISTER_ALLOCATOR_H_ 29 #define V8_REGISTER_ALLOCATOR_H_
30 30
31 #include "macro-assembler.h" 31 #include "macro-assembler.h"
32 #include "number-info-inl.h" 32 #include "type-info-inl.h"
33 33
34 #if V8_TARGET_ARCH_IA32 34 #if V8_TARGET_ARCH_IA32
35 #include "ia32/register-allocator-ia32.h" 35 #include "ia32/register-allocator-ia32.h"
36 #elif V8_TARGET_ARCH_X64 36 #elif V8_TARGET_ARCH_X64
37 #include "x64/register-allocator-x64.h" 37 #include "x64/register-allocator-x64.h"
38 #elif V8_TARGET_ARCH_ARM 38 #elif V8_TARGET_ARCH_ARM
39 #include "arm/register-allocator-arm.h" 39 #include "arm/register-allocator-arm.h"
40 #elif V8_TARGET_ARCH_MIPS 40 #elif V8_TARGET_ARCH_MIPS
41 #include "mips/register-allocator-mips.h" 41 #include "mips/register-allocator-mips.h"
42 #else 42 #else
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58 enum Type { 58 enum Type {
59 INVALID, 59 INVALID,
60 REGISTER, 60 REGISTER,
61 CONSTANT 61 CONSTANT
62 }; 62 };
63 63
64 // Construct an invalid result. 64 // Construct an invalid result.
65 Result() { invalidate(); } 65 Result() { invalidate(); }
66 66
67 // Construct a register Result. 67 // Construct a register Result.
68 explicit Result(Register reg, NumberInfo info = NumberInfo::Unknown()); 68 explicit Result(Register reg, TypeInfo info = TypeInfo::Unknown());
69 69
70 // Construct a Result whose value is a compile-time constant. 70 // Construct a Result whose value is a compile-time constant.
71 explicit Result(Handle<Object> value) { 71 explicit Result(Handle<Object> value) {
72 NumberInfo info = NumberInfo::TypeFromValue(value); 72 TypeInfo info = TypeInfo::TypeFromValue(value);
73 value_ = TypeField::encode(CONSTANT) 73 value_ = TypeField::encode(CONSTANT)
74 | NumberInfoField::encode(info.ToInt()) 74 | TypeInfoField::encode(info.ToInt())
75 | IsUntaggedInt32Field::encode(false) 75 | IsUntaggedInt32Field::encode(false)
76 | DataField::encode(ConstantList()->length()); 76 | DataField::encode(ConstantList()->length());
77 ConstantList()->Add(value); 77 ConstantList()->Add(value);
78 } 78 }
79 79
80 // The copy constructor and assignment operators could each create a new 80 // The copy constructor and assignment operators could each create a new
81 // register reference. 81 // register reference.
82 inline Result(const Result& other); 82 inline Result(const Result& other);
83 83
84 inline Result& operator=(const Result& other); 84 inline Result& operator=(const Result& other);
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96 static void ClearConstantList() { 96 static void ClearConstantList() {
97 ConstantList()->Clear(); 97 ConstantList()->Clear();
98 } 98 }
99 99
100 inline void Unuse(); 100 inline void Unuse();
101 101
102 Type type() const { return TypeField::decode(value_); } 102 Type type() const { return TypeField::decode(value_); }
103 103
104 void invalidate() { value_ = TypeField::encode(INVALID); } 104 void invalidate() { value_ = TypeField::encode(INVALID); }
105 105
106 inline NumberInfo number_info() const; 106 inline TypeInfo type_info() const;
107 inline void set_number_info(NumberInfo info); 107 inline void set_type_info(TypeInfo info);
108 inline bool is_number() const; 108 inline bool is_number() const;
109 inline bool is_smi() const; 109 inline bool is_smi() const;
110 inline bool is_integer32() const; 110 inline bool is_integer32() const;
111 inline bool is_double() const; 111 inline bool is_double() const;
112 112
113 bool is_valid() const { return type() != INVALID; } 113 bool is_valid() const { return type() != INVALID; }
114 bool is_register() const { return type() == REGISTER; } 114 bool is_register() const { return type() == REGISTER; }
115 bool is_constant() const { return type() == CONSTANT; } 115 bool is_constant() const { return type() == CONSTANT; }
116 116
117 // An untagged int32 Result contains a signed int32 in a register 117 // An untagged int32 Result contains a signed int32 in a register
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148 // Move this result to a specified register. The register is spilled from 148 // Move this result to a specified register. The register is spilled from
149 // the frame, and the register is singly-referenced (by this result) 149 // the frame, and the register is singly-referenced (by this result)
150 // outside the frame. 150 // outside the frame.
151 void ToRegister(Register reg); 151 void ToRegister(Register reg);
152 152
153 private: 153 private:
154 uint32_t value_; 154 uint32_t value_;
155 155
156 // Declare BitFields with template parameters <type, start, size>. 156 // Declare BitFields with template parameters <type, start, size>.
157 class TypeField: public BitField<Type, 0, 2> {}; 157 class TypeField: public BitField<Type, 0, 2> {};
158 class NumberInfoField : public BitField<int, 2, 6> {}; 158 class TypeInfoField : public BitField<int, 2, 6> {};
159 class IsUntaggedInt32Field : public BitField<bool, 8, 1> {}; 159 class IsUntaggedInt32Field : public BitField<bool, 8, 1> {};
160 class DataField: public BitField<uint32_t, 9, 32 - 9> {}; 160 class DataField: public BitField<uint32_t, 9, 32 - 9> {};
161 161
162 inline void CopyTo(Result* destination) const; 162 inline void CopyTo(Result* destination) const;
163 163
164 friend class CodeGeneratorScope; 164 friend class CodeGeneratorScope;
165 }; 165 };
166 166
167 167
168 // ------------------------------------------------------------------------- 168 // -------------------------------------------------------------------------
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307 } 307 }
308 308
309 private: 309 private:
310 CodeGenerator* cgen_; 310 CodeGenerator* cgen_;
311 RegisterFile registers_; 311 RegisterFile registers_;
312 }; 312 };
313 313
314 } } // namespace v8::internal 314 } } // namespace v8::internal
315 315
316 #endif // V8_REGISTER_ALLOCATOR_H_ 316 #endif // V8_REGISTER_ALLOCATOR_H_
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