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Issue 10832365: Rename Context::global to Context::global_object, (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Addressed Michael's comments. Created 8 years, 4 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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2660 2660
2661 // Reload map as register rbx was used as temporary above. 2661 // Reload map as register rbx was used as temporary above.
2662 __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset)); 2662 __ movq(rbx, FieldOperand(rax, HeapObject::kMapOffset));
2663 2663
2664 // If a valueOf property is not found on the object check that it's 2664 // If a valueOf property is not found on the object check that it's
2665 // prototype is the un-modified String prototype. If not result is false. 2665 // prototype is the un-modified String prototype. If not result is false.
2666 __ movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset)); 2666 __ movq(rcx, FieldOperand(rbx, Map::kPrototypeOffset));
2667 __ testq(rcx, Immediate(kSmiTagMask)); 2667 __ testq(rcx, Immediate(kSmiTagMask));
2668 __ j(zero, if_false); 2668 __ j(zero, if_false);
2669 __ movq(rcx, FieldOperand(rcx, HeapObject::kMapOffset)); 2669 __ movq(rcx, FieldOperand(rcx, HeapObject::kMapOffset));
2670 __ movq(rdx, Operand(rsi, Context::SlotOffset(Context::GLOBAL_INDEX))); 2670 __ movq(rdx, Operand(rsi, Context::SlotOffset(Context::GLOBAL_OBJECT_INDEX)));
2671 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset)); 2671 __ movq(rdx, FieldOperand(rdx, GlobalObject::kNativeContextOffset));
2672 __ cmpq(rcx, 2672 __ cmpq(rcx,
2673 ContextOperand(rdx, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX)); 2673 ContextOperand(rdx, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
2674 __ j(not_equal, if_false); 2674 __ j(not_equal, if_false);
2675 // Set the bit in the map to indicate that it has been checked safe for 2675 // Set the bit in the map to indicate that it has been checked safe for
2676 // default valueOf and set true result. 2676 // default valueOf and set true result.
2677 __ or_(FieldOperand(rbx, Map::kBitField2Offset), 2677 __ or_(FieldOperand(rbx, Map::kBitField2Offset),
2678 Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf)); 2678 Immediate(1 << Map::kStringWrapperSafeForDefaultValueOf));
2679 __ jmp(if_true); 2679 __ jmp(if_true);
2680 2680
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2938 // Allocate a heap number. 2938 // Allocate a heap number.
2939 __ CallRuntime(Runtime::kNumberAlloc, 0); 2939 __ CallRuntime(Runtime::kNumberAlloc, 0);
2940 __ movq(rbx, rax); 2940 __ movq(rbx, rax);
2941 2941
2942 __ bind(&heapnumber_allocated); 2942 __ bind(&heapnumber_allocated);
2943 2943
2944 // Return a random uint32 number in rax. 2944 // Return a random uint32 number in rax.
2945 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs. 2945 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs.
2946 __ PrepareCallCFunction(1); 2946 __ PrepareCallCFunction(1);
2947 #ifdef _WIN64 2947 #ifdef _WIN64
2948 __ movq(rcx, ContextOperand(context_register(), Context::GLOBAL_INDEX)); 2948 __ movq(rcx,
2949 ContextOperand(context_register(), Context::GLOBAL_OBJECT_INDEX));
2949 __ movq(rcx, FieldOperand(rcx, GlobalObject::kNativeContextOffset)); 2950 __ movq(rcx, FieldOperand(rcx, GlobalObject::kNativeContextOffset));
2950 2951
2951 #else 2952 #else
2952 __ movq(rdi, ContextOperand(context_register(), Context::GLOBAL_INDEX)); 2953 __ movq(rdi,
2954 ContextOperand(context_register(), Context::GLOBAL_OBJECT_INDEX));
2953 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset)); 2955 __ movq(rdi, FieldOperand(rdi, GlobalObject::kNativeContextOffset));
2954 #endif 2956 #endif
2955 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1); 2957 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1);
2956 2958
2957 // Convert 32 random bits in rax to 0.(32 random bits) in a double 2959 // Convert 32 random bits in rax to 0.(32 random bits) in a double
2958 // by computing: 2960 // by computing:
2959 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). 2961 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)).
2960 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single. 2962 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single.
2961 __ movd(xmm1, rcx); 2963 __ movd(xmm1, rcx);
2962 __ movd(xmm0, rax); 2964 __ movd(xmm0, rax);
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3373 __ LoadRoot(rax, Heap::kUndefinedValueRootIndex); 3375 __ LoadRoot(rax, Heap::kUndefinedValueRootIndex);
3374 context()->Plug(rax); 3376 context()->Plug(rax);
3375 return; 3377 return;
3376 } 3378 }
3377 3379
3378 VisitForAccumulatorValue(args->at(1)); 3380 VisitForAccumulatorValue(args->at(1));
3379 3381
3380 Register key = rax; 3382 Register key = rax;
3381 Register cache = rbx; 3383 Register cache = rbx;
3382 Register tmp = rcx; 3384 Register tmp = rcx;
3383 __ movq(cache, ContextOperand(rsi, Context::GLOBAL_INDEX)); 3385 __ movq(cache, ContextOperand(rsi, Context::GLOBAL_OBJECT_INDEX));
3384 __ movq(cache, 3386 __ movq(cache,
3385 FieldOperand(cache, GlobalObject::kNativeContextOffset)); 3387 FieldOperand(cache, GlobalObject::kNativeContextOffset));
3386 __ movq(cache, 3388 __ movq(cache,
3387 ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX)); 3389 ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
3388 __ movq(cache, 3390 __ movq(cache,
3389 FieldOperand(cache, FixedArray::OffsetOfElementAt(cache_id))); 3391 FieldOperand(cache, FixedArray::OffsetOfElementAt(cache_id)));
3390 3392
3391 Label done, not_found; 3393 Label done, not_found;
3392 // tmp now holds finger offset as a smi. 3394 // tmp now holds finger offset as a smi.
3393 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1); 3395 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1);
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4540 *context_length = 0; 4542 *context_length = 0;
4541 return previous_; 4543 return previous_;
4542 } 4544 }
4543 4545
4544 4546
4545 #undef __ 4547 #undef __
4546 4548
4547 } } // namespace v8::internal 4549 } } // namespace v8::internal
4548 4550
4549 #endif // V8_TARGET_ARCH_X64 4551 #endif // V8_TARGET_ARCH_X64
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