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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/base/bits.h" | 7 #include "src/base/bits.h" |
8 #include "src/bootstrapper.h" | 8 #include "src/bootstrapper.h" |
9 #include "src/code-stubs.h" | 9 #include "src/code-stubs.h" |
10 #include "src/codegen.h" | 10 #include "src/codegen.h" |
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1692 | 1692 |
1693 // v0 = address of new object(s) (tagged) | 1693 // v0 = address of new object(s) (tagged) |
1694 // a2 = argument count (smi-tagged) | 1694 // a2 = argument count (smi-tagged) |
1695 // Get the arguments boilerplate from the current native context into t0. | 1695 // Get the arguments boilerplate from the current native context into t0. |
1696 const int kNormalOffset = | 1696 const int kNormalOffset = |
1697 Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX); | 1697 Context::SlotOffset(Context::SLOPPY_ARGUMENTS_MAP_INDEX); |
1698 const int kAliasedOffset = | 1698 const int kAliasedOffset = |
1699 Context::SlotOffset(Context::FAST_ALIASED_ARGUMENTS_MAP_INDEX); | 1699 Context::SlotOffset(Context::FAST_ALIASED_ARGUMENTS_MAP_INDEX); |
1700 | 1700 |
1701 __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 1701 __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
1702 __ lw(t0, FieldMemOperand(t0, GlobalObject::kNativeContextOffset)); | 1702 __ lw(t0, FieldMemOperand(t0, JSGlobalObject::kNativeContextOffset)); |
1703 Label skip2_ne, skip2_eq; | 1703 Label skip2_ne, skip2_eq; |
1704 __ Branch(&skip2_ne, ne, t2, Operand(zero_reg)); | 1704 __ Branch(&skip2_ne, ne, t2, Operand(zero_reg)); |
1705 __ lw(t0, MemOperand(t0, kNormalOffset)); | 1705 __ lw(t0, MemOperand(t0, kNormalOffset)); |
1706 __ bind(&skip2_ne); | 1706 __ bind(&skip2_ne); |
1707 | 1707 |
1708 __ Branch(&skip2_eq, eq, t2, Operand(zero_reg)); | 1708 __ Branch(&skip2_eq, eq, t2, Operand(zero_reg)); |
1709 __ lw(t0, MemOperand(t0, kAliasedOffset)); | 1709 __ lw(t0, MemOperand(t0, kAliasedOffset)); |
1710 __ bind(&skip2_eq); | 1710 __ bind(&skip2_eq); |
1711 | 1711 |
1712 // v0 = address of new object (tagged) | 1712 // v0 = address of new object (tagged) |
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1896 __ Addu(t5, t5, Operand(FixedArray::kHeaderSize / kPointerSize)); | 1896 __ Addu(t5, t5, Operand(FixedArray::kHeaderSize / kPointerSize)); |
1897 __ bind(&add_arguments_object); | 1897 __ bind(&add_arguments_object); |
1898 __ Addu(t5, t5, Operand(Heap::kStrictArgumentsObjectSize / kPointerSize)); | 1898 __ Addu(t5, t5, Operand(Heap::kStrictArgumentsObjectSize / kPointerSize)); |
1899 | 1899 |
1900 // Do the allocation of both objects in one go. | 1900 // Do the allocation of both objects in one go. |
1901 __ Allocate(t5, v0, t0, t1, &runtime, | 1901 __ Allocate(t5, v0, t0, t1, &runtime, |
1902 static_cast<AllocationFlags>(TAG_OBJECT | SIZE_IN_WORDS)); | 1902 static_cast<AllocationFlags>(TAG_OBJECT | SIZE_IN_WORDS)); |
1903 | 1903 |
1904 // Get the arguments boilerplate from the current native context. | 1904 // Get the arguments boilerplate from the current native context. |
1905 __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); | 1905 __ lw(t0, MemOperand(cp, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); |
1906 __ lw(t0, FieldMemOperand(t0, GlobalObject::kNativeContextOffset)); | 1906 __ lw(t0, FieldMemOperand(t0, JSGlobalObject::kNativeContextOffset)); |
1907 __ lw(t0, MemOperand( | 1907 __ lw(t0, MemOperand( |
1908 t0, Context::SlotOffset(Context::STRICT_ARGUMENTS_MAP_INDEX))); | 1908 t0, Context::SlotOffset(Context::STRICT_ARGUMENTS_MAP_INDEX))); |
1909 | 1909 |
1910 __ sw(t0, FieldMemOperand(v0, JSObject::kMapOffset)); | 1910 __ sw(t0, FieldMemOperand(v0, JSObject::kMapOffset)); |
1911 __ LoadRoot(t1, Heap::kEmptyFixedArrayRootIndex); | 1911 __ LoadRoot(t1, Heap::kEmptyFixedArrayRootIndex); |
1912 __ sw(t1, FieldMemOperand(v0, JSObject::kPropertiesOffset)); | 1912 __ sw(t1, FieldMemOperand(v0, JSObject::kPropertiesOffset)); |
1913 __ sw(t1, FieldMemOperand(v0, JSObject::kElementsOffset)); | 1913 __ sw(t1, FieldMemOperand(v0, JSObject::kElementsOffset)); |
1914 | 1914 |
1915 // Get the length (smi tagged) and set that as an in-object property too. | 1915 // Get the length (smi tagged) and set that as an in-object property too. |
1916 STATIC_ASSERT(Heap::kArgumentsLengthIndex == 0); | 1916 STATIC_ASSERT(Heap::kArgumentsLengthIndex == 0); |
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5759 MemOperand(fp, 6 * kPointerSize), NULL); | 5759 MemOperand(fp, 6 * kPointerSize), NULL); |
5760 } | 5760 } |
5761 | 5761 |
5762 | 5762 |
5763 #undef __ | 5763 #undef __ |
5764 | 5764 |
5765 } // namespace internal | 5765 } // namespace internal |
5766 } // namespace v8 | 5766 } // namespace v8 |
5767 | 5767 |
5768 #endif // V8_TARGET_ARCH_MIPS | 5768 #endif // V8_TARGET_ARCH_MIPS |
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