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1 // Copyright 2006-2009 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2009 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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168 // Allocation support | 168 // Allocation support |
169 | 169 |
170 // Allocate an object in new space. If the new space is exhausted control | 170 // Allocate an object in new space. If the new space is exhausted control |
171 // continues at the gc_required label. The allocated object is returned in | 171 // continues at the gc_required label. The allocated object is returned in |
172 // result and end of the new object is returned in result_end. The register | 172 // result and end of the new object is returned in result_end. The register |
173 // scratch can be passed as no_reg in which case an additional object | 173 // scratch can be passed as no_reg in which case an additional object |
174 // reference will be added to the reloc info. The returned pointers in result | 174 // reference will be added to the reloc info. The returned pointers in result |
175 // and result_end have not yet been tagged as heap objects. If | 175 // and result_end have not yet been tagged as heap objects. If |
176 // result_contains_top_on_entry is true the contnt of result is known to be | 176 // result_contains_top_on_entry is true the contnt of result is known to be |
177 // the allocation top on entry (could be result_end from a previous call to | 177 // the allocation top on entry (could be result_end from a previous call to |
178 // AllocateObjectInNewSpace). If result_contains_top_on_entry is true scratch | 178 // AllocateInNewSpace). If result_contains_top_on_entry is true scratch |
179 // should be no_reg as it is never used. | 179 // should be no_reg as it is never used. |
180 void AllocateObjectInNewSpace(int object_size, | 180 void AllocateInNewSpace(int object_size, |
181 Register result, | 181 Register result, |
182 Register result_end, | 182 Register result_end, |
183 Register scratch, | 183 Register scratch, |
184 Label* gc_required, | 184 Label* gc_required, |
185 AllocationFlags flags); | 185 AllocationFlags flags); |
186 | 186 |
187 void AllocateObjectInNewSpace(int header_size, | 187 void AllocateInNewSpace(int header_size, |
188 ScaleFactor element_size, | 188 ScaleFactor element_size, |
189 Register element_count, | 189 Register element_count, |
190 Register result, | 190 Register result, |
191 Register result_end, | 191 Register result_end, |
192 Register scratch, | 192 Register scratch, |
193 Label* gc_required, | 193 Label* gc_required, |
194 AllocationFlags flags); | 194 AllocationFlags flags); |
195 | 195 |
196 void AllocateObjectInNewSpace(Register object_size, | 196 void AllocateInNewSpace(Register object_size, |
197 Register result, | 197 Register result, |
198 Register result_end, | 198 Register result_end, |
199 Register scratch, | 199 Register scratch, |
200 Label* gc_required, | 200 Label* gc_required, |
201 AllocationFlags flags); | 201 AllocationFlags flags); |
202 | 202 |
203 // Undo allocation in new space. The object passed and objects allocated after | 203 // Undo allocation in new space. The object passed and objects allocated after |
204 // it will no longer be allocated. Make sure that no pointers are left to the | 204 // it will no longer be allocated. Make sure that no pointers are left to the |
205 // object(s) no longer allocated as they would be invalid when allocation is | 205 // object(s) no longer allocated as they would be invalid when allocation is |
206 // un-done. | 206 // un-done. |
207 void UndoAllocationInNewSpace(Register object); | 207 void UndoAllocationInNewSpace(Register object); |
208 | 208 |
209 // --------------------------------------------------------------------------- | 209 // --------------------------------------------------------------------------- |
210 // Support functions. | 210 // Support functions. |
211 | 211 |
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394 } \ | 394 } \ |
395 masm-> | 395 masm-> |
396 #else | 396 #else |
397 #define ACCESS_MASM(masm) masm-> | 397 #define ACCESS_MASM(masm) masm-> |
398 #endif | 398 #endif |
399 | 399 |
400 | 400 |
401 } } // namespace v8::internal | 401 } } // namespace v8::internal |
402 | 402 |
403 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ | 403 #endif // V8_IA32_MACRO_ASSEMBLER_IA32_H_ |
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