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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/x87/codegen-x87.h" | 5 #include "src/x87/codegen-x87.h" |
6 | 6 |
7 #if V8_TARGET_ARCH_X87 | 7 #if V8_TARGET_ARCH_X87 |
8 | 8 |
9 #include "src/codegen.h" | 9 #include "src/codegen.h" |
10 #include "src/heap/heap.h" | 10 #include "src/heap/heap.h" |
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268 __ j(equal, &only_change_map); | 268 __ j(equal, &only_change_map); |
269 | 269 |
270 __ push(eax); | 270 __ push(eax); |
271 __ push(ebx); | 271 __ push(ebx); |
272 | 272 |
273 __ mov(edi, FieldOperand(edi, FixedArray::kLengthOffset)); | 273 __ mov(edi, FieldOperand(edi, FixedArray::kLengthOffset)); |
274 | 274 |
275 // Allocate new FixedDoubleArray. | 275 // Allocate new FixedDoubleArray. |
276 // edx: receiver | 276 // edx: receiver |
277 // edi: length of source FixedArray (smi-tagged) | 277 // edi: length of source FixedArray (smi-tagged) |
278 AllocationFlags flags = | |
279 static_cast<AllocationFlags>(TAG_OBJECT | DOUBLE_ALIGNMENT); | |
280 __ Allocate(FixedDoubleArray::kHeaderSize, times_8, edi, | 278 __ Allocate(FixedDoubleArray::kHeaderSize, times_8, edi, |
281 REGISTER_VALUE_IS_SMI, eax, ebx, no_reg, &gc_required, flags); | 279 REGISTER_VALUE_IS_SMI, eax, ebx, no_reg, &gc_required, |
| 280 DOUBLE_ALIGNMENT); |
282 | 281 |
283 // eax: destination FixedDoubleArray | 282 // eax: destination FixedDoubleArray |
284 // edi: number of elements | 283 // edi: number of elements |
285 // edx: receiver | 284 // edx: receiver |
286 __ mov(FieldOperand(eax, HeapObject::kMapOffset), | 285 __ mov(FieldOperand(eax, HeapObject::kMapOffset), |
287 Immediate(masm->isolate()->factory()->fixed_double_array_map())); | 286 Immediate(masm->isolate()->factory()->fixed_double_array_map())); |
288 __ mov(FieldOperand(eax, FixedDoubleArray::kLengthOffset), edi); | 287 __ mov(FieldOperand(eax, FixedDoubleArray::kLengthOffset), edi); |
289 __ mov(esi, FieldOperand(edx, JSObject::kElementsOffset)); | 288 __ mov(esi, FieldOperand(edx, JSObject::kElementsOffset)); |
290 // Replace receiver's backing store with newly created FixedDoubleArray. | 289 // Replace receiver's backing store with newly created FixedDoubleArray. |
291 __ mov(FieldOperand(edx, JSObject::kElementsOffset), eax); | 290 __ mov(FieldOperand(edx, JSObject::kElementsOffset), eax); |
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384 __ push(esi); | 383 __ push(esi); |
385 __ push(eax); | 384 __ push(eax); |
386 __ push(edx); | 385 __ push(edx); |
387 __ push(ebx); | 386 __ push(ebx); |
388 | 387 |
389 __ mov(ebx, FieldOperand(edi, FixedDoubleArray::kLengthOffset)); | 388 __ mov(ebx, FieldOperand(edi, FixedDoubleArray::kLengthOffset)); |
390 | 389 |
391 // Allocate new FixedArray. | 390 // Allocate new FixedArray. |
392 // ebx: length of source FixedDoubleArray (smi-tagged) | 391 // ebx: length of source FixedDoubleArray (smi-tagged) |
393 __ lea(edi, Operand(ebx, times_2, FixedArray::kHeaderSize)); | 392 __ lea(edi, Operand(ebx, times_2, FixedArray::kHeaderSize)); |
394 __ Allocate(edi, eax, esi, no_reg, &gc_required, TAG_OBJECT); | 393 __ Allocate(edi, eax, esi, no_reg, &gc_required, NO_ALLOCATION_FLAGS); |
395 | 394 |
396 // eax: destination FixedArray | 395 // eax: destination FixedArray |
397 // ebx: number of elements | 396 // ebx: number of elements |
398 __ mov(FieldOperand(eax, HeapObject::kMapOffset), | 397 __ mov(FieldOperand(eax, HeapObject::kMapOffset), |
399 Immediate(masm->isolate()->factory()->fixed_array_map())); | 398 Immediate(masm->isolate()->factory()->fixed_array_map())); |
400 __ mov(FieldOperand(eax, FixedArray::kLengthOffset), ebx); | 399 __ mov(FieldOperand(eax, FixedArray::kLengthOffset), ebx); |
401 __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset)); | 400 __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset)); |
402 | 401 |
403 // Allocating heap numbers in the loop below can fail and cause a jump to | 402 // Allocating heap numbers in the loop below can fail and cause a jump to |
404 // gc_required. We can't leave a partly initialized FixedArray behind, | 403 // gc_required. We can't leave a partly initialized FixedArray behind, |
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645 CodePatcher patcher(isolate, sequence, young_length); | 644 CodePatcher patcher(isolate, sequence, young_length); |
646 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); | 645 patcher.masm()->call(stub->instruction_start(), RelocInfo::NONE32); |
647 } | 646 } |
648 } | 647 } |
649 | 648 |
650 | 649 |
651 } // namespace internal | 650 } // namespace internal |
652 } // namespace v8 | 651 } // namespace v8 |
653 | 652 |
654 #endif // V8_TARGET_ARCH_X87 | 653 #endif // V8_TARGET_ARCH_X87 |
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