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Issue 12440041: Generalizing remaining Allocate functions in the macro assemblers used in pretenuring. (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Created 7 years, 9 months ago
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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 // Redistribution and use in source and binary forms, with or without 2 // Redistribution and use in source and binary forms, with or without
3 // modification, are permitted provided that the following conditions are 3 // modification, are permitted provided that the following conditions are
4 // met: 4 // met:
5 // 5 //
6 // * Redistributions of source code must retain the above copyright 6 // * Redistributions of source code must retain the above copyright
7 // notice, this list of conditions and the following disclaimer. 7 // notice, this list of conditions and the following disclaimer.
8 // * Redistributions in binary form must reproduce the above 8 // * Redistributions in binary form must reproduce the above
9 // copyright notice, this list of conditions and the following 9 // copyright notice, this list of conditions and the following
10 // disclaimer in the documentation and/or other materials provided 10 // disclaimer in the documentation and/or other materials provided
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2645 __ lea(r8, Operand(rbx, times_pointer_size, kParameterMapHeaderSize)); 2645 __ lea(r8, Operand(rbx, times_pointer_size, kParameterMapHeaderSize));
2646 __ bind(&no_parameter_map); 2646 __ bind(&no_parameter_map);
2647 2647
2648 // 2. Backing store. 2648 // 2. Backing store.
2649 __ lea(r8, Operand(r8, rcx, times_pointer_size, FixedArray::kHeaderSize)); 2649 __ lea(r8, Operand(r8, rcx, times_pointer_size, FixedArray::kHeaderSize));
2650 2650
2651 // 3. Arguments object. 2651 // 3. Arguments object.
2652 __ addq(r8, Immediate(Heap::kArgumentsObjectSize)); 2652 __ addq(r8, Immediate(Heap::kArgumentsObjectSize));
2653 2653
2654 // Do the allocation of all three objects in one go. 2654 // Do the allocation of all three objects in one go.
2655 __ AllocateInNewSpace(r8, rax, rdx, rdi, &runtime, TAG_OBJECT); 2655 __ Allocate(r8, rax, rdx, rdi, &runtime, TAG_OBJECT);
2656 2656
2657 // rax = address of new object(s) (tagged) 2657 // rax = address of new object(s) (tagged)
2658 // rcx = argument count (untagged) 2658 // rcx = argument count (untagged)
2659 // Get the arguments boilerplate from the current native context into rdi. 2659 // Get the arguments boilerplate from the current native context into rdi.
2660 Label has_mapped_parameters, copy; 2660 Label has_mapped_parameters, copy;
2661 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); 2661 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
2662 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset)); 2662 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset));
2663 __ testq(rbx, rbx); 2663 __ testq(rbx, rbx);
2664 __ j(not_zero, &has_mapped_parameters, Label::kNear); 2664 __ j(not_zero, &has_mapped_parameters, Label::kNear);
2665 2665
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2863 // the arguments object and the elements array. 2863 // the arguments object and the elements array.
2864 Label add_arguments_object; 2864 Label add_arguments_object;
2865 __ bind(&try_allocate); 2865 __ bind(&try_allocate);
2866 __ testq(rcx, rcx); 2866 __ testq(rcx, rcx);
2867 __ j(zero, &add_arguments_object, Label::kNear); 2867 __ j(zero, &add_arguments_object, Label::kNear);
2868 __ lea(rcx, Operand(rcx, times_pointer_size, FixedArray::kHeaderSize)); 2868 __ lea(rcx, Operand(rcx, times_pointer_size, FixedArray::kHeaderSize));
2869 __ bind(&add_arguments_object); 2869 __ bind(&add_arguments_object);
2870 __ addq(rcx, Immediate(Heap::kArgumentsObjectSizeStrict)); 2870 __ addq(rcx, Immediate(Heap::kArgumentsObjectSizeStrict));
2871 2871
2872 // Do the allocation of both objects in one go. 2872 // Do the allocation of both objects in one go.
2873 __ AllocateInNewSpace(rcx, rax, rdx, rbx, &runtime, TAG_OBJECT); 2873 __ Allocate(rcx, rax, rdx, rbx, &runtime, TAG_OBJECT);
2874 2874
2875 // Get the arguments boilerplate from the current native context. 2875 // Get the arguments boilerplate from the current native context.
2876 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); 2876 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
2877 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset)); 2877 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset));
2878 const int offset = 2878 const int offset =
2879 Context::SlotOffset(Context::STRICT_MODE_ARGUMENTS_BOILERPLATE_INDEX); 2879 Context::SlotOffset(Context::STRICT_MODE_ARGUMENTS_BOILERPLATE_INDEX);
2880 __ movq(rdi, Operand(rdi, offset)); 2880 __ movq(rdi, Operand(rdi, offset));
2881 2881
2882 // Copy the JS object part. 2882 // Copy the JS object part.
2883 for (int i = 0; i < JSObject::kHeaderSize; i += kPointerSize) { 2883 for (int i = 0; i < JSObject::kHeaderSize; i += kPointerSize) {
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3396 __ JumpIfNotSmi(r8, &slowcase); 3396 __ JumpIfNotSmi(r8, &slowcase);
3397 __ SmiToInteger32(rbx, r8); 3397 __ SmiToInteger32(rbx, r8);
3398 __ cmpl(rbx, Immediate(kMaxInlineLength)); 3398 __ cmpl(rbx, Immediate(kMaxInlineLength));
3399 __ j(above, &slowcase); 3399 __ j(above, &slowcase);
3400 // Smi-tagging is equivalent to multiplying by 2. 3400 // Smi-tagging is equivalent to multiplying by 2.
3401 STATIC_ASSERT(kSmiTag == 0); 3401 STATIC_ASSERT(kSmiTag == 0);
3402 STATIC_ASSERT(kSmiTagSize == 1); 3402 STATIC_ASSERT(kSmiTagSize == 1);
3403 // Allocate RegExpResult followed by FixedArray with size in rbx. 3403 // Allocate RegExpResult followed by FixedArray with size in rbx.
3404 // JSArray: [Map][empty properties][Elements][Length-smi][index][input] 3404 // JSArray: [Map][empty properties][Elements][Length-smi][index][input]
3405 // Elements: [Map][Length][..elements..] 3405 // Elements: [Map][Length][..elements..]
3406 __ AllocateInNewSpace(JSRegExpResult::kSize + FixedArray::kHeaderSize, 3406 __ Allocate(JSRegExpResult::kSize + FixedArray::kHeaderSize,
3407 times_pointer_size, 3407 times_pointer_size,
3408 rbx, // In: Number of elements. 3408 rbx, // In: Number of elements.
3409 rax, // Out: Start of allocation (tagged). 3409 rax, // Out: Start of allocation (tagged).
3410 rcx, // Out: End of allocation. 3410 rcx, // Out: End of allocation.
3411 rdx, // Scratch register 3411 rdx, // Scratch register
3412 &slowcase, 3412 &slowcase,
3413 TAG_OBJECT); 3413 TAG_OBJECT);
3414 // rax: Start of allocated area, object-tagged. 3414 // rax: Start of allocated area, object-tagged.
3415 // rbx: Number of array elements as int32. 3415 // rbx: Number of array elements as int32.
3416 // r8: Number of array elements as smi. 3416 // r8: Number of array elements as smi.
3417 3417
3418 // Set JSArray map to global.regexp_result_map(). 3418 // Set JSArray map to global.regexp_result_map().
3419 __ movq(rdx, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX)); 3419 __ movq(rdx, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX));
3420 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset)); 3420 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset));
3421 __ movq(rdx, ContextOperand(rdx, Context::REGEXP_RESULT_MAP_INDEX)); 3421 __ movq(rdx, ContextOperand(rdx, Context::REGEXP_RESULT_MAP_INDEX));
3422 __ movq(FieldOperand(rax, HeapObject::kMapOffset), rdx); 3422 __ movq(FieldOperand(rax, HeapObject::kMapOffset), rdx);
3423 3423
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6871 #endif 6871 #endif
6872 6872
6873 __ Ret(); 6873 __ Ret();
6874 } 6874 }
6875 6875
6876 #undef __ 6876 #undef __
6877 6877
6878 } } // namespace v8::internal 6878 } } // namespace v8::internal
6879 6879
6880 #endif // V8_TARGET_ARCH_X64 6880 #endif // V8_TARGET_ARCH_X64
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