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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 #if V8_TARGET_ARCH_MIPS | 5 #if V8_TARGET_ARCH_MIPS |
6 | 6 |
7 #include "src/code-stubs.h" | 7 #include "src/code-stubs.h" |
8 #include "src/api-arguments.h" | 8 #include "src/api-arguments.h" |
9 #include "src/base/bits.h" | 9 #include "src/base/bits.h" |
10 #include "src/bootstrapper.h" | 10 #include "src/bootstrapper.h" |
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4603 | 4603 |
4604 // Fall back to runtime if the target differs from the new target's | 4604 // Fall back to runtime if the target differs from the new target's |
4605 // initial map constructor. | 4605 // initial map constructor. |
4606 __ lw(a0, FieldMemOperand(a2, Map::kConstructorOrBackPointerOffset)); | 4606 __ lw(a0, FieldMemOperand(a2, Map::kConstructorOrBackPointerOffset)); |
4607 __ Branch(&new_object, ne, a0, Operand(a1)); | 4607 __ Branch(&new_object, ne, a0, Operand(a1)); |
4608 | 4608 |
4609 // Allocate the JSObject on the heap. | 4609 // Allocate the JSObject on the heap. |
4610 Label allocate, done_allocate; | 4610 Label allocate, done_allocate; |
4611 __ lbu(t0, FieldMemOperand(a2, Map::kInstanceSizeOffset)); | 4611 __ lbu(t0, FieldMemOperand(a2, Map::kInstanceSizeOffset)); |
4612 __ Allocate(t0, v0, t1, a0, &allocate, SIZE_IN_WORDS); | 4612 __ Allocate(t0, v0, t1, a0, &allocate, SIZE_IN_WORDS); |
4613 __ Subu(t1, t1, Operand(kHeapObjectTag)); // Untag result end. | |
4614 __ bind(&done_allocate); | 4613 __ bind(&done_allocate); |
4615 | 4614 |
4616 // Initialize the JSObject fields. | 4615 // Initialize the JSObject fields. |
4617 __ sw(a2, FieldMemOperand(v0, JSObject::kMapOffset)); | 4616 __ sw(a2, FieldMemOperand(v0, JSObject::kMapOffset)); |
4618 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); | 4617 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); |
4619 __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); | 4618 __ sw(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); |
4620 __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); | 4619 __ sw(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); |
4621 STATIC_ASSERT(JSObject::kHeaderSize == 3 * kPointerSize); | 4620 STATIC_ASSERT(JSObject::kHeaderSize == 3 * kPointerSize); |
4622 __ Addu(a1, v0, Operand(JSObject::kHeaderSize - kHeapObjectTag)); | 4621 __ Addu(a1, v0, Operand(JSObject::kHeaderSize - kHeapObjectTag)); |
4623 | 4622 |
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4747 __ bind(&no_rest_parameters); | 4746 __ bind(&no_rest_parameters); |
4748 { | 4747 { |
4749 // ----------- S t a t e ------------- | 4748 // ----------- S t a t e ------------- |
4750 // -- cp : context | 4749 // -- cp : context |
4751 // -- ra : return address | 4750 // -- ra : return address |
4752 // ----------------------------------- | 4751 // ----------------------------------- |
4753 | 4752 |
4754 // Allocate an empty rest parameter array. | 4753 // Allocate an empty rest parameter array. |
4755 Label allocate, done_allocate; | 4754 Label allocate, done_allocate; |
4756 __ Allocate(JSArray::kSize, v0, a0, a1, &allocate, NO_ALLOCATION_FLAGS); | 4755 __ Allocate(JSArray::kSize, v0, a0, a1, &allocate, NO_ALLOCATION_FLAGS); |
4757 __ Subu(a0, a0, Operand(kHeapObjectTag)); // Untag result end. | |
4758 __ bind(&done_allocate); | 4756 __ bind(&done_allocate); |
4759 | 4757 |
4760 // Setup the rest parameter array in v0. | 4758 // Setup the rest parameter array in v0. |
4761 __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, a1); | 4759 __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, a1); |
4762 __ sw(a1, FieldMemOperand(v0, JSArray::kMapOffset)); | 4760 __ sw(a1, FieldMemOperand(v0, JSArray::kMapOffset)); |
4763 __ LoadRoot(a1, Heap::kEmptyFixedArrayRootIndex); | 4761 __ LoadRoot(a1, Heap::kEmptyFixedArrayRootIndex); |
4764 __ sw(a1, FieldMemOperand(v0, JSArray::kPropertiesOffset)); | 4762 __ sw(a1, FieldMemOperand(v0, JSArray::kPropertiesOffset)); |
4765 __ sw(a1, FieldMemOperand(v0, JSArray::kElementsOffset)); | 4763 __ sw(a1, FieldMemOperand(v0, JSArray::kElementsOffset)); |
4766 __ Move(a1, Smi::FromInt(0)); | 4764 __ Move(a1, Smi::FromInt(0)); |
4767 __ Ret(USE_DELAY_SLOT); | 4765 __ Ret(USE_DELAY_SLOT); |
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5626 kStackUnwindSpace, kInvalidStackOffset, | 5624 kStackUnwindSpace, kInvalidStackOffset, |
5627 return_value_operand, NULL); | 5625 return_value_operand, NULL); |
5628 } | 5626 } |
5629 | 5627 |
5630 #undef __ | 5628 #undef __ |
5631 | 5629 |
5632 } // namespace internal | 5630 } // namespace internal |
5633 } // namespace v8 | 5631 } // namespace v8 |
5634 | 5632 |
5635 #endif // V8_TARGET_ARCH_MIPS | 5633 #endif // V8_TARGET_ARCH_MIPS |
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