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Issue 12855004: MIPS: Generalizing remaining Allocate functions in the macro assemblers used in pretenuring. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 9 months ago
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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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199 __ Branch(&only_change_map, eq, at, Operand(t0)); 199 __ Branch(&only_change_map, eq, at, Operand(t0));
200 200
201 __ push(ra); 201 __ push(ra);
202 __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset)); 202 __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset));
203 // t0: source FixedArray 203 // t0: source FixedArray
204 // t1: number of elements (smi-tagged) 204 // t1: number of elements (smi-tagged)
205 205
206 // Allocate new FixedDoubleArray. 206 // Allocate new FixedDoubleArray.
207 __ sll(scratch, t1, 2); 207 __ sll(scratch, t1, 2);
208 __ Addu(scratch, scratch, FixedDoubleArray::kHeaderSize); 208 __ Addu(scratch, scratch, FixedDoubleArray::kHeaderSize);
209 __ AllocateInNewSpace(scratch, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS); 209 __ Allocate(scratch, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS);
210 // t2: destination FixedDoubleArray, not tagged as heap object 210 // t2: destination FixedDoubleArray, not tagged as heap object
211
211 // Set destination FixedDoubleArray's length and map. 212 // Set destination FixedDoubleArray's length and map.
212 __ LoadRoot(t5, Heap::kFixedDoubleArrayMapRootIndex); 213 __ LoadRoot(t5, Heap::kFixedDoubleArrayMapRootIndex);
213 __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset)); 214 __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset));
214 __ sw(t5, MemOperand(t2, HeapObject::kMapOffset)); 215 __ sw(t5, MemOperand(t2, HeapObject::kMapOffset));
215 // Update receiver's map. 216 // Update receiver's map.
216 217
217 __ sw(a3, FieldMemOperand(a2, HeapObject::kMapOffset)); 218 __ sw(a3, FieldMemOperand(a2, HeapObject::kMapOffset));
218 __ RecordWriteField(a2, 219 __ RecordWriteField(a2,
219 HeapObject::kMapOffset, 220 HeapObject::kMapOffset,
220 a3, 221 a3,
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344 345
345 __ MultiPush(a0.bit() | a1.bit() | a2.bit() | a3.bit() | ra.bit()); 346 __ MultiPush(a0.bit() | a1.bit() | a2.bit() | a3.bit() | ra.bit());
346 347
347 __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset)); 348 __ lw(t1, FieldMemOperand(t0, FixedArray::kLengthOffset));
348 // t0: source FixedArray 349 // t0: source FixedArray
349 // t1: number of elements (smi-tagged) 350 // t1: number of elements (smi-tagged)
350 351
351 // Allocate new FixedArray. 352 // Allocate new FixedArray.
352 __ sll(a0, t1, 1); 353 __ sll(a0, t1, 1);
353 __ Addu(a0, a0, FixedDoubleArray::kHeaderSize); 354 __ Addu(a0, a0, FixedDoubleArray::kHeaderSize);
354 __ AllocateInNewSpace(a0, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS); 355 __ Allocate(a0, t2, t3, t5, &gc_required, NO_ALLOCATION_FLAGS);
355 // t2: destination FixedArray, not tagged as heap object 356 // t2: destination FixedArray, not tagged as heap object
356 // Set destination FixedDoubleArray's length and map. 357 // Set destination FixedDoubleArray's length and map.
357 __ LoadRoot(t5, Heap::kFixedArrayMapRootIndex); 358 __ LoadRoot(t5, Heap::kFixedArrayMapRootIndex);
358 __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset)); 359 __ sw(t1, MemOperand(t2, FixedDoubleArray::kLengthOffset));
359 __ sw(t5, MemOperand(t2, HeapObject::kMapOffset)); 360 __ sw(t5, MemOperand(t2, HeapObject::kMapOffset));
360 361
361 // Prepare for conversion loop. 362 // Prepare for conversion loop.
362 __ Addu(t0, t0, Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag + 4)); 363 __ Addu(t0, t0, Operand(FixedDoubleArray::kHeaderSize - kHeapObjectTag + 4));
363 __ Addu(a3, t2, Operand(FixedArray::kHeaderSize)); 364 __ Addu(a3, t2, Operand(FixedArray::kHeaderSize));
364 __ Addu(t2, t2, Operand(kHeapObjectTag)); 365 __ Addu(t2, t2, Operand(kHeapObjectTag));
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720 patcher.masm()->dd(reinterpret_cast<uint32_t>(stub->instruction_start())); 721 patcher.masm()->dd(reinterpret_cast<uint32_t>(stub->instruction_start()));
721 } 722 }
722 } 723 }
723 724
724 725
725 #undef __ 726 #undef __
726 727
727 } } // namespace v8::internal 728 } } // namespace v8::internal
728 729
729 #endif // V8_TARGET_ARCH_MIPS 730 #endif // V8_TARGET_ARCH_MIPS
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