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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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_ARM64 | 5 #if V8_TARGET_ARCH_ARM64 |
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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4666 __ LoadRoot(x1, Heap::kEmptyFixedArrayRootIndex); | 4666 __ LoadRoot(x1, Heap::kEmptyFixedArrayRootIndex); |
4667 __ Str(x1, FieldMemOperand(x0, JSArray::kPropertiesOffset)); | 4667 __ Str(x1, FieldMemOperand(x0, JSArray::kPropertiesOffset)); |
4668 __ Str(x3, FieldMemOperand(x0, JSArray::kElementsOffset)); | 4668 __ Str(x3, FieldMemOperand(x0, JSArray::kElementsOffset)); |
4669 __ Str(x6, FieldMemOperand(x0, JSArray::kLengthOffset)); | 4669 __ Str(x6, FieldMemOperand(x0, JSArray::kLengthOffset)); |
4670 STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize); | 4670 STATIC_ASSERT(JSArray::kSize == 4 * kPointerSize); |
4671 __ Ret(); | 4671 __ Ret(); |
4672 | 4672 |
4673 // Fall back to %AllocateInNewSpace (if not too big). | 4673 // Fall back to %AllocateInNewSpace (if not too big). |
4674 Label too_big_for_new_space; | 4674 Label too_big_for_new_space; |
4675 __ Bind(&allocate); | 4675 __ Bind(&allocate); |
4676 __ Cmp(x6, Operand(Page::kMaxRegularHeapObjectSize)); | 4676 __ Cmp(x6, Operand(kMaxRegularHeapObjectSize)); |
4677 __ B(gt, &too_big_for_new_space); | 4677 __ B(gt, &too_big_for_new_space); |
4678 { | 4678 { |
4679 FrameScope scope(masm, StackFrame::INTERNAL); | 4679 FrameScope scope(masm, StackFrame::INTERNAL); |
4680 __ SmiTag(x0); | 4680 __ SmiTag(x0); |
4681 __ SmiTag(x6); | 4681 __ SmiTag(x6); |
4682 __ Push(x0, x2, x6); | 4682 __ Push(x0, x2, x6); |
4683 __ CallRuntime(Runtime::kAllocateInNewSpace); | 4683 __ CallRuntime(Runtime::kAllocateInNewSpace); |
4684 __ Mov(x3, x0); | 4684 __ Mov(x3, x0); |
4685 __ Pop(x2, x0); | 4685 __ Pop(x2, x0); |
4686 __ SmiUntag(x0); | 4686 __ SmiUntag(x0); |
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5086 __ LoadRoot(x1, Heap::kEmptyFixedArrayRootIndex); | 5086 __ LoadRoot(x1, Heap::kEmptyFixedArrayRootIndex); |
5087 __ Str(x1, FieldMemOperand(x0, JSStrictArgumentsObject::kPropertiesOffset)); | 5087 __ Str(x1, FieldMemOperand(x0, JSStrictArgumentsObject::kPropertiesOffset)); |
5088 __ Str(x3, FieldMemOperand(x0, JSStrictArgumentsObject::kElementsOffset)); | 5088 __ Str(x3, FieldMemOperand(x0, JSStrictArgumentsObject::kElementsOffset)); |
5089 __ Str(x6, FieldMemOperand(x0, JSStrictArgumentsObject::kLengthOffset)); | 5089 __ Str(x6, FieldMemOperand(x0, JSStrictArgumentsObject::kLengthOffset)); |
5090 STATIC_ASSERT(JSStrictArgumentsObject::kSize == 4 * kPointerSize); | 5090 STATIC_ASSERT(JSStrictArgumentsObject::kSize == 4 * kPointerSize); |
5091 __ Ret(); | 5091 __ Ret(); |
5092 | 5092 |
5093 // Fall back to %AllocateInNewSpace (if not too big). | 5093 // Fall back to %AllocateInNewSpace (if not too big). |
5094 Label too_big_for_new_space; | 5094 Label too_big_for_new_space; |
5095 __ Bind(&allocate); | 5095 __ Bind(&allocate); |
5096 __ Cmp(x6, Operand(Page::kMaxRegularHeapObjectSize)); | 5096 __ Cmp(x6, Operand(kMaxRegularHeapObjectSize)); |
5097 __ B(gt, &too_big_for_new_space); | 5097 __ B(gt, &too_big_for_new_space); |
5098 { | 5098 { |
5099 FrameScope scope(masm, StackFrame::INTERNAL); | 5099 FrameScope scope(masm, StackFrame::INTERNAL); |
5100 __ SmiTag(x0); | 5100 __ SmiTag(x0); |
5101 __ SmiTag(x6); | 5101 __ SmiTag(x6); |
5102 __ Push(x0, x2, x6); | 5102 __ Push(x0, x2, x6); |
5103 __ CallRuntime(Runtime::kAllocateInNewSpace); | 5103 __ CallRuntime(Runtime::kAllocateInNewSpace); |
5104 __ Mov(x3, x0); | 5104 __ Mov(x3, x0); |
5105 __ Pop(x2, x0); | 5105 __ Pop(x2, x0); |
5106 __ SmiUntag(x0); | 5106 __ SmiUntag(x0); |
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5575 kStackUnwindSpace, NULL, spill_offset, | 5575 kStackUnwindSpace, NULL, spill_offset, |
5576 return_value_operand, NULL); | 5576 return_value_operand, NULL); |
5577 } | 5577 } |
5578 | 5578 |
5579 #undef __ | 5579 #undef __ |
5580 | 5580 |
5581 } // namespace internal | 5581 } // namespace internal |
5582 } // namespace v8 | 5582 } // namespace v8 |
5583 | 5583 |
5584 #endif // V8_TARGET_ARCH_ARM64 | 5584 #endif // V8_TARGET_ARCH_ARM64 |
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