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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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219 // remembered set. | 219 // remembered set. |
220 sub(offset, offset, Operand(Page::kPageSize / kPointerSize)); | 220 sub(offset, offset, Operand(Page::kPageSize / kPointerSize)); |
221 // Load the array length into 'scratch' and multiply by four to get the | 221 // Load the array length into 'scratch' and multiply by four to get the |
222 // size in bytes of the elements. | 222 // size in bytes of the elements. |
223 ldr(scratch, MemOperand(object, Page::kObjectStartOffset | 223 ldr(scratch, MemOperand(object, Page::kObjectStartOffset |
224 + FixedArray::kLengthOffset)); | 224 + FixedArray::kLengthOffset)); |
225 mov(scratch, Operand(scratch, LSL, kObjectAlignmentBits)); | 225 mov(scratch, Operand(scratch, LSL, kObjectAlignmentBits)); |
226 // Add the page header (including remembered set), array header, and array | 226 // Add the page header (including remembered set), array header, and array |
227 // body size to the page address. | 227 // body size to the page address. |
228 add(object, object, Operand(Page::kObjectStartOffset | 228 add(object, object, Operand(Page::kObjectStartOffset |
229 + Array::kHeaderSize)); | 229 + FixedArray::kHeaderSize)); |
230 add(object, object, Operand(scratch)); | 230 add(object, object, Operand(scratch)); |
231 | 231 |
232 bind(&fast); | 232 bind(&fast); |
233 // Get address of the rset word. | 233 // Get address of the rset word. |
234 // object: start of the remembered set (page start for the fast case) | 234 // object: start of the remembered set (page start for the fast case) |
235 // offset: bit offset of store position in the remembered set | 235 // offset: bit offset of store position in the remembered set |
236 bic(scratch, offset, Operand(kBitsPerInt - 1)); // clear the bit offset | 236 bic(scratch, offset, Operand(kBitsPerInt - 1)); // clear the bit offset |
237 add(object, object, Operand(scratch, LSR, kRSetWordShift)); | 237 add(object, object, Operand(scratch, LSR, kRSetWordShift)); |
238 // Get bit offset in the rset word. | 238 // Get bit offset in the rset word. |
239 // object: address of remembered set word | 239 // object: address of remembered set word |
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1005 #endif | 1005 #endif |
1006 mov(r0, Operand(p0)); | 1006 mov(r0, Operand(p0)); |
1007 push(r0); | 1007 push(r0); |
1008 mov(r0, Operand(Smi::FromInt(p1 - p0))); | 1008 mov(r0, Operand(Smi::FromInt(p1 - p0))); |
1009 push(r0); | 1009 push(r0); |
1010 CallRuntime(Runtime::kAbort, 2); | 1010 CallRuntime(Runtime::kAbort, 2); |
1011 // will not return here | 1011 // will not return here |
1012 } | 1012 } |
1013 | 1013 |
1014 } } // namespace v8::internal | 1014 } } // namespace v8::internal |
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