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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_MIPS64 | 5 #if V8_TARGET_ARCH_MIPS64 |
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/bootstrapper.h" | 9 #include "src/bootstrapper.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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4519 | 4519 |
4520 // Fall back to runtime if the target differs from the new target's | 4520 // Fall back to runtime if the target differs from the new target's |
4521 // initial map constructor. | 4521 // initial map constructor. |
4522 __ ld(a0, FieldMemOperand(a2, Map::kConstructorOrBackPointerOffset)); | 4522 __ ld(a0, FieldMemOperand(a2, Map::kConstructorOrBackPointerOffset)); |
4523 __ Branch(&new_object, ne, a0, Operand(a1)); | 4523 __ Branch(&new_object, ne, a0, Operand(a1)); |
4524 | 4524 |
4525 // Allocate the JSObject on the heap. | 4525 // Allocate the JSObject on the heap. |
4526 Label allocate, done_allocate; | 4526 Label allocate, done_allocate; |
4527 __ lbu(a4, FieldMemOperand(a2, Map::kInstanceSizeOffset)); | 4527 __ lbu(a4, FieldMemOperand(a2, Map::kInstanceSizeOffset)); |
4528 __ Allocate(a4, v0, a5, a0, &allocate, SIZE_IN_WORDS); | 4528 __ Allocate(a4, v0, a5, a0, &allocate, SIZE_IN_WORDS); |
| 4529 __ Dsubu(a5, a5, Operand(kHeapObjectTag)); // Untag result end |
4529 __ bind(&done_allocate); | 4530 __ bind(&done_allocate); |
4530 | 4531 |
4531 // Initialize the JSObject fields. | 4532 // Initialize the JSObject fields. |
4532 __ sd(a2, FieldMemOperand(v0, JSObject::kMapOffset)); | 4533 __ sd(a2, FieldMemOperand(v0, JSObject::kMapOffset)); |
4533 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); | 4534 __ LoadRoot(a3, Heap::kEmptyFixedArrayRootIndex); |
4534 __ sd(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); | 4535 __ sd(a3, FieldMemOperand(v0, JSObject::kPropertiesOffset)); |
4535 __ sd(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); | 4536 __ sd(a3, FieldMemOperand(v0, JSObject::kElementsOffset)); |
4536 STATIC_ASSERT(JSObject::kHeaderSize == 3 * kPointerSize); | 4537 STATIC_ASSERT(JSObject::kHeaderSize == 3 * kPointerSize); |
4537 __ Daddu(a1, v0, Operand(JSObject::kHeaderSize - kHeapObjectTag)); | 4538 __ Daddu(a1, v0, Operand(JSObject::kHeaderSize - kHeapObjectTag)); |
4538 | 4539 |
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4664 __ bind(&no_rest_parameters); | 4665 __ bind(&no_rest_parameters); |
4665 { | 4666 { |
4666 // ----------- S t a t e ------------- | 4667 // ----------- S t a t e ------------- |
4667 // -- cp : context | 4668 // -- cp : context |
4668 // -- ra : return address | 4669 // -- ra : return address |
4669 // ----------------------------------- | 4670 // ----------------------------------- |
4670 | 4671 |
4671 // Allocate an empty rest parameter array. | 4672 // Allocate an empty rest parameter array. |
4672 Label allocate, done_allocate; | 4673 Label allocate, done_allocate; |
4673 __ Allocate(JSArray::kSize, v0, a0, a1, &allocate, NO_ALLOCATION_FLAGS); | 4674 __ Allocate(JSArray::kSize, v0, a0, a1, &allocate, NO_ALLOCATION_FLAGS); |
| 4675 __ Dsubu(a0, a0, Operand(kHeapObjectTag)); // Untag result end. |
4674 __ bind(&done_allocate); | 4676 __ bind(&done_allocate); |
4675 | 4677 |
4676 // Setup the rest parameter array in v0. | 4678 // Setup the rest parameter array in v0. |
4677 __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, a1); | 4679 __ LoadNativeContextSlot(Context::JS_ARRAY_FAST_ELEMENTS_MAP_INDEX, a1); |
4678 __ sd(a1, FieldMemOperand(v0, JSArray::kMapOffset)); | 4680 __ sd(a1, FieldMemOperand(v0, JSArray::kMapOffset)); |
4679 __ LoadRoot(a1, Heap::kEmptyFixedArrayRootIndex); | 4681 __ LoadRoot(a1, Heap::kEmptyFixedArrayRootIndex); |
4680 __ sd(a1, FieldMemOperand(v0, JSArray::kPropertiesOffset)); | 4682 __ sd(a1, FieldMemOperand(v0, JSArray::kPropertiesOffset)); |
4681 __ sd(a1, FieldMemOperand(v0, JSArray::kElementsOffset)); | 4683 __ sd(a1, FieldMemOperand(v0, JSArray::kElementsOffset)); |
4682 __ Move(a1, Smi::FromInt(0)); | 4684 __ Move(a1, Smi::FromInt(0)); |
4683 __ Ret(USE_DELAY_SLOT); | 4685 __ Ret(USE_DELAY_SLOT); |
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5580 kStackUnwindSpace, kInvalidStackOffset, | 5582 kStackUnwindSpace, kInvalidStackOffset, |
5581 return_value_operand, NULL); | 5583 return_value_operand, NULL); |
5582 } | 5584 } |
5583 | 5585 |
5584 #undef __ | 5586 #undef __ |
5585 | 5587 |
5586 } // namespace internal | 5588 } // namespace internal |
5587 } // namespace v8 | 5589 } // namespace v8 |
5588 | 5590 |
5589 #endif // V8_TARGET_ARCH_MIPS64 | 5591 #endif // V8_TARGET_ARCH_MIPS64 |
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