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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 // 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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44 TAG_OBJECT = 1 << 0, | 44 TAG_OBJECT = 1 << 0, |
45 // The content of the result register already contains the allocation top in | 45 // The content of the result register already contains the allocation top in |
46 // new space. | 46 // new space. |
47 RESULT_CONTAINS_TOP = 1 << 1, | 47 RESULT_CONTAINS_TOP = 1 << 1, |
48 // Specify that the requested size of the space to allocate is specified in | 48 // Specify that the requested size of the space to allocate is specified in |
49 // words instead of bytes. | 49 // words instead of bytes. |
50 SIZE_IN_WORDS = 1 << 2, | 50 SIZE_IN_WORDS = 1 << 2, |
51 // Align the allocation to a multiple of kDoubleSize | 51 // Align the allocation to a multiple of kDoubleSize |
52 DOUBLE_ALIGNMENT = 1 << 3, | 52 DOUBLE_ALIGNMENT = 1 << 3, |
53 // Directly allocate in old pointer space | 53 // Directly allocate in old pointer space |
54 PRETENURE_OLD_POINTER_SPACE = 1 << 4 | 54 PRETENURE_OLD_POINTER_SPACE = 1 << 4, |
| 55 // Directly allocate in old data space |
| 56 PRETENURE_OLD_DATA_SPACE = 1 << 5 |
55 }; | 57 }; |
56 | 58 |
57 | 59 |
58 // Invalid depth in prototype chain. | 60 // Invalid depth in prototype chain. |
59 const int kInvalidProtoDepth = -1; | 61 const int kInvalidProtoDepth = -1; |
60 | 62 |
61 #if V8_TARGET_ARCH_IA32 | 63 #if V8_TARGET_ARCH_IA32 |
62 #include "assembler.h" | 64 #include "assembler.h" |
63 #include "ia32/assembler-ia32.h" | 65 #include "ia32/assembler-ia32.h" |
64 #include "ia32/assembler-ia32-inl.h" | 66 #include "ia32/assembler-ia32-inl.h" |
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168 Comment(MacroAssembler*, const char*) {} | 170 Comment(MacroAssembler*, const char*) {} |
169 }; | 171 }; |
170 | 172 |
171 #endif // DEBUG | 173 #endif // DEBUG |
172 | 174 |
173 | 175 |
174 class AllocationUtils { | 176 class AllocationUtils { |
175 public: | 177 public: |
176 static ExternalReference GetAllocationTopReference( | 178 static ExternalReference GetAllocationTopReference( |
177 Isolate* isolate, AllocationFlags flags) { | 179 Isolate* isolate, AllocationFlags flags) { |
178 return ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) ? | 180 if ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) { |
179 ExternalReference::old_pointer_space_allocation_top_address(isolate) : | 181 return ExternalReference::old_pointer_space_allocation_top_address( |
180 ExternalReference::new_space_allocation_top_address(isolate); | 182 isolate); |
| 183 } else if ((flags & PRETENURE_OLD_DATA_SPACE) != 0) { |
| 184 return ExternalReference::old_data_space_allocation_top_address(isolate); |
| 185 } |
| 186 return ExternalReference::new_space_allocation_top_address(isolate); |
181 } | 187 } |
182 | 188 |
183 | 189 |
184 static ExternalReference GetAllocationLimitReference( | 190 static ExternalReference GetAllocationLimitReference( |
185 Isolate* isolate, AllocationFlags flags) { | 191 Isolate* isolate, AllocationFlags flags) { |
186 return ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) ? | 192 if ((flags & PRETENURE_OLD_POINTER_SPACE) != 0) { |
187 ExternalReference::old_pointer_space_allocation_limit_address(isolate) : | 193 return ExternalReference::old_pointer_space_allocation_limit_address( |
188 ExternalReference::new_space_allocation_limit_address(isolate); | 194 isolate); |
| 195 } else if ((flags & PRETENURE_OLD_DATA_SPACE) != 0) { |
| 196 return ExternalReference::old_data_space_allocation_limit_address( |
| 197 isolate); |
| 198 } |
| 199 return ExternalReference::new_space_allocation_limit_address(isolate); |
189 } | 200 } |
190 }; | 201 }; |
191 | 202 |
192 | 203 |
193 } } // namespace v8::internal | 204 } } // namespace v8::internal |
194 | 205 |
195 #endif // V8_MACRO_ASSEMBLER_H_ | 206 #endif // V8_MACRO_ASSEMBLER_H_ |
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