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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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2656 __ lea(r8, Operand(rbx, times_pointer_size, kParameterMapHeaderSize)); 2656 __ lea(r8, Operand(rbx, times_pointer_size, kParameterMapHeaderSize));
2657 __ bind(&no_parameter_map); 2657 __ bind(&no_parameter_map);
2658 2658
2659 // 2. Backing store. 2659 // 2. Backing store.
2660 __ lea(r8, Operand(r8, rcx, times_pointer_size, FixedArray::kHeaderSize)); 2660 __ lea(r8, Operand(r8, rcx, times_pointer_size, FixedArray::kHeaderSize));
2661 2661
2662 // 3. Arguments object. 2662 // 3. Arguments object.
2663 __ addq(r8, Immediate(Heap::kArgumentsObjectSize)); 2663 __ addq(r8, Immediate(Heap::kArgumentsObjectSize));
2664 2664
2665 // Do the allocation of all three objects in one go. 2665 // Do the allocation of all three objects in one go.
2666 __ AllocateInNewSpace(r8, rax, rdx, rdi, &runtime, TAG_OBJECT); 2666 __ Allocate(r8, rax, rdx, rdi, &runtime, TAG_OBJECT);
2667 2667
2668 // rax = address of new object(s) (tagged) 2668 // rax = address of new object(s) (tagged)
2669 // rcx = argument count (untagged) 2669 // rcx = argument count (untagged)
2670 // Get the arguments boilerplate from the current native context into rdi. 2670 // Get the arguments boilerplate from the current native context into rdi.
2671 Label has_mapped_parameters, copy; 2671 Label has_mapped_parameters, copy;
2672 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); 2672 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
2673 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset)); 2673 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset));
2674 __ testq(rbx, rbx); 2674 __ testq(rbx, rbx);
2675 __ j(not_zero, &has_mapped_parameters, Label::kNear); 2675 __ j(not_zero, &has_mapped_parameters, Label::kNear);
2676 2676
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2874 // the arguments object and the elements array. 2874 // the arguments object and the elements array.
2875 Label add_arguments_object; 2875 Label add_arguments_object;
2876 __ bind(&try_allocate); 2876 __ bind(&try_allocate);
2877 __ testq(rcx, rcx); 2877 __ testq(rcx, rcx);
2878 __ j(zero, &add_arguments_object, Label::kNear); 2878 __ j(zero, &add_arguments_object, Label::kNear);
2879 __ lea(rcx, Operand(rcx, times_pointer_size, FixedArray::kHeaderSize)); 2879 __ lea(rcx, Operand(rcx, times_pointer_size, FixedArray::kHeaderSize));
2880 __ bind(&add_arguments_object); 2880 __ bind(&add_arguments_object);
2881 __ addq(rcx, Immediate(Heap::kArgumentsObjectSizeStrict)); 2881 __ addq(rcx, Immediate(Heap::kArgumentsObjectSizeStrict));
2882 2882
2883 // Do the allocation of both objects in one go. 2883 // Do the allocation of both objects in one go.
2884 __ AllocateInNewSpace(rcx, rax, rdx, rbx, &runtime, TAG_OBJECT); 2884 __ Allocate(rcx, rax, rdx, rbx, &runtime, TAG_OBJECT);
2885 2885
2886 // Get the arguments boilerplate from the current native context. 2886 // Get the arguments boilerplate from the current native context.
2887 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX))); 2887 __ movq(rdi, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
2888 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset)); 2888 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset));
2889 const int offset = 2889 const int offset =
2890 Context::SlotOffset(Context::STRICT_MODE_ARGUMENTS_BOILERPLATE_INDEX); 2890 Context::SlotOffset(Context::STRICT_MODE_ARGUMENTS_BOILERPLATE_INDEX);
2891 __ movq(rdi, Operand(rdi, offset)); 2891 __ movq(rdi, Operand(rdi, offset));
2892 2892
2893 // Copy the JS object part. 2893 // Copy the JS object part.
2894 for (int i = 0; i < JSObject::kHeaderSize; i += kPointerSize) { 2894 for (int i = 0; i < JSObject::kHeaderSize; i += kPointerSize) {
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3407 __ JumpIfNotSmi(r8, &slowcase); 3407 __ JumpIfNotSmi(r8, &slowcase);
3408 __ SmiToInteger32(rbx, r8); 3408 __ SmiToInteger32(rbx, r8);
3409 __ cmpl(rbx, Immediate(kMaxInlineLength)); 3409 __ cmpl(rbx, Immediate(kMaxInlineLength));
3410 __ j(above, &slowcase); 3410 __ j(above, &slowcase);
3411 // Smi-tagging is equivalent to multiplying by 2. 3411 // Smi-tagging is equivalent to multiplying by 2.
3412 STATIC_ASSERT(kSmiTag == 0); 3412 STATIC_ASSERT(kSmiTag == 0);
3413 STATIC_ASSERT(kSmiTagSize == 1); 3413 STATIC_ASSERT(kSmiTagSize == 1);
3414 // Allocate RegExpResult followed by FixedArray with size in rbx. 3414 // Allocate RegExpResult followed by FixedArray with size in rbx.
3415 // JSArray: [Map][empty properties][Elements][Length-smi][index][input] 3415 // JSArray: [Map][empty properties][Elements][Length-smi][index][input]
3416 // Elements: [Map][Length][..elements..] 3416 // Elements: [Map][Length][..elements..]
3417 __ AllocateInNewSpace(JSRegExpResult::kSize + FixedArray::kHeaderSize, 3417 __ Allocate(JSRegExpResult::kSize + FixedArray::kHeaderSize,
3418 times_pointer_size, 3418 times_pointer_size,
3419 rbx, // In: Number of elements. 3419 rbx, // In: Number of elements.
3420 rax, // Out: Start of allocation (tagged). 3420 rax, // Out: Start of allocation (tagged).
3421 rcx, // Out: End of allocation. 3421 rcx, // Out: End of allocation.
3422 rdx, // Scratch register 3422 rdx, // Scratch register
3423 &slowcase, 3423 &slowcase,
3424 TAG_OBJECT); 3424 TAG_OBJECT);
3425 // rax: Start of allocated area, object-tagged. 3425 // rax: Start of allocated area, object-tagged.
3426 // rbx: Number of array elements as int32. 3426 // rbx: Number of array elements as int32.
3427 // r8: Number of array elements as smi. 3427 // r8: Number of array elements as smi.
3428 3428
3429 // Set JSArray map to global.regexp_result_map(). 3429 // Set JSArray map to global.regexp_result_map().
3430 __ movq(rdx, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX)); 3430 __ movq(rdx, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX));
3431 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset)); 3431 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset));
3432 __ movq(rdx, ContextOperand(rdx, Context::REGEXP_RESULT_MAP_INDEX)); 3432 __ movq(rdx, ContextOperand(rdx, Context::REGEXP_RESULT_MAP_INDEX));
3433 __ movq(FieldOperand(rax, HeapObject::kMapOffset), rdx); 3433 __ movq(FieldOperand(rax, HeapObject::kMapOffset), rdx);
3434 3434
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6882 #endif 6882 #endif
6883 6883
6884 __ Ret(); 6884 __ Ret();
6885 } 6885 }
6886 6886
6887 #undef __ 6887 #undef __
6888 6888
6889 } } // namespace v8::internal 6889 } } // namespace v8::internal
6890 6890
6891 #endif // V8_TARGET_ARCH_X64 6891 #endif // V8_TARGET_ARCH_X64
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