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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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2751 __ add(r4, r4, Operand(kPointerSize)); 2751 __ add(r4, r4, Operand(kPointerSize));
2752 __ bind(&entry); 2752 __ bind(&entry);
2753 __ cmp(r4, Operand(r2)); 2753 __ cmp(r4, Operand(r2));
2754 __ b(ne, &loop); 2754 __ b(ne, &loop);
2755 2755
2756 // If a valueOf property is not found on the object check that it's 2756 // If a valueOf property is not found on the object check that it's
2757 // prototype is the un-modified String prototype. If not result is false. 2757 // prototype is the un-modified String prototype. If not result is false.
2758 __ ldr(r2, FieldMemOperand(r1, Map::kPrototypeOffset)); 2758 __ ldr(r2, FieldMemOperand(r1, Map::kPrototypeOffset));
2759 __ JumpIfSmi(r2, if_false); 2759 __ JumpIfSmi(r2, if_false);
2760 __ ldr(r2, FieldMemOperand(r2, HeapObject::kMapOffset)); 2760 __ ldr(r2, FieldMemOperand(r2, HeapObject::kMapOffset));
2761 __ ldr(r3, ContextOperand(cp, Context::GLOBAL_INDEX)); 2761 __ ldr(r3, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
2762 __ ldr(r3, FieldMemOperand(r3, GlobalObject::kNativeContextOffset)); 2762 __ ldr(r3, FieldMemOperand(r3, GlobalObject::kNativeContextOffset));
2763 __ ldr(r3, ContextOperand(r3, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX)); 2763 __ ldr(r3, ContextOperand(r3, Context::STRING_FUNCTION_PROTOTYPE_MAP_INDEX));
2764 __ cmp(r2, r3); 2764 __ cmp(r2, r3);
2765 __ b(ne, if_false); 2765 __ b(ne, if_false);
2766 2766
2767 // Set the bit in the map to indicate that it has been checked safe for 2767 // Set the bit in the map to indicate that it has been checked safe for
2768 // default valueOf and set true result. 2768 // default valueOf and set true result.
2769 __ ldrb(r2, FieldMemOperand(r1, Map::kBitField2Offset)); 2769 __ ldrb(r2, FieldMemOperand(r1, Map::kBitField2Offset));
2770 __ orr(r2, r2, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf)); 2770 __ orr(r2, r2, Operand(1 << Map::kStringWrapperSafeForDefaultValueOf));
2771 __ strb(r2, FieldMemOperand(r1, Map::kBitField2Offset)); 2771 __ strb(r2, FieldMemOperand(r1, Map::kBitField2Offset));
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3031 __ CallRuntime(Runtime::kNumberAlloc, 0); 3031 __ CallRuntime(Runtime::kNumberAlloc, 0);
3032 __ mov(r4, Operand(r0)); 3032 __ mov(r4, Operand(r0));
3033 3033
3034 __ bind(&heapnumber_allocated); 3034 __ bind(&heapnumber_allocated);
3035 3035
3036 // Convert 32 random bits in r0 to 0.(32 random bits) in a double 3036 // Convert 32 random bits in r0 to 0.(32 random bits) in a double
3037 // by computing: 3037 // by computing:
3038 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). 3038 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)).
3039 if (CpuFeatures::IsSupported(VFP2)) { 3039 if (CpuFeatures::IsSupported(VFP2)) {
3040 __ PrepareCallCFunction(1, r0); 3040 __ PrepareCallCFunction(1, r0);
3041 __ ldr(r0, ContextOperand(context_register(), Context::GLOBAL_INDEX)); 3041 __ ldr(r0,
3042 ContextOperand(context_register(), Context::GLOBAL_OBJECT_INDEX));
3042 __ ldr(r0, FieldMemOperand(r0, GlobalObject::kNativeContextOffset)); 3043 __ ldr(r0, FieldMemOperand(r0, GlobalObject::kNativeContextOffset));
3043 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1); 3044 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 1);
3044 3045
3045 CpuFeatures::Scope scope(VFP2); 3046 CpuFeatures::Scope scope(VFP2);
3046 // 0x41300000 is the top half of 1.0 x 2^20 as a double. 3047 // 0x41300000 is the top half of 1.0 x 2^20 as a double.
3047 // Create this constant using mov/orr to avoid PC relative load. 3048 // Create this constant using mov/orr to avoid PC relative load.
3048 __ mov(r1, Operand(0x41000000)); 3049 __ mov(r1, Operand(0x41000000));
3049 __ orr(r1, r1, Operand(0x300000)); 3050 __ orr(r1, r1, Operand(0x300000));
3050 // Move 0x41300000xxxxxxxx (x = random bits) to VFP. 3051 // Move 0x41300000xxxxxxxx (x = random bits) to VFP.
3051 __ vmov(d7, r0, r1); 3052 __ vmov(d7, r0, r1);
3052 // Move 0x4130000000000000 to VFP. 3053 // Move 0x4130000000000000 to VFP.
3053 __ mov(r0, Operand(0, RelocInfo::NONE)); 3054 __ mov(r0, Operand(0, RelocInfo::NONE));
3054 __ vmov(d8, r0, r1); 3055 __ vmov(d8, r0, r1);
3055 // Subtract and store the result in the heap number. 3056 // Subtract and store the result in the heap number.
3056 __ vsub(d7, d7, d8); 3057 __ vsub(d7, d7, d8);
3057 __ sub(r0, r4, Operand(kHeapObjectTag)); 3058 __ sub(r0, r4, Operand(kHeapObjectTag));
3058 __ vstr(d7, r0, HeapNumber::kValueOffset); 3059 __ vstr(d7, r0, HeapNumber::kValueOffset);
3059 __ mov(r0, r4); 3060 __ mov(r0, r4);
3060 } else { 3061 } else {
3061 __ PrepareCallCFunction(2, r0); 3062 __ PrepareCallCFunction(2, r0);
3062 __ ldr(r1, ContextOperand(context_register(), Context::GLOBAL_INDEX)); 3063 __ ldr(r1,
3064 ContextOperand(context_register(), Context::GLOBAL_OBJECT_INDEX));
3063 __ mov(r0, Operand(r4)); 3065 __ mov(r0, Operand(r4));
3064 __ ldr(r1, FieldMemOperand(r1, GlobalObject::kNativeContextOffset)); 3066 __ ldr(r1, FieldMemOperand(r1, GlobalObject::kNativeContextOffset));
3065 __ CallCFunction( 3067 __ CallCFunction(
3066 ExternalReference::fill_heap_number_with_random_function(isolate()), 2); 3068 ExternalReference::fill_heap_number_with_random_function(isolate()), 2);
3067 } 3069 }
3068 3070
3069 context()->Plug(r0); 3071 context()->Plug(r0);
3070 } 3072 }
3071 3073
3072 3074
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3464 __ Abort("Attempt to use undefined cache."); 3466 __ Abort("Attempt to use undefined cache.");
3465 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex); 3467 __ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
3466 context()->Plug(r0); 3468 context()->Plug(r0);
3467 return; 3469 return;
3468 } 3470 }
3469 3471
3470 VisitForAccumulatorValue(args->at(1)); 3472 VisitForAccumulatorValue(args->at(1));
3471 3473
3472 Register key = r0; 3474 Register key = r0;
3473 Register cache = r1; 3475 Register cache = r1;
3474 __ ldr(cache, ContextOperand(cp, Context::GLOBAL_INDEX)); 3476 __ ldr(cache, ContextOperand(cp, Context::GLOBAL_OBJECT_INDEX));
3475 __ ldr(cache, FieldMemOperand(cache, GlobalObject::kNativeContextOffset)); 3477 __ ldr(cache, FieldMemOperand(cache, GlobalObject::kNativeContextOffset));
3476 __ ldr(cache, ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX)); 3478 __ ldr(cache, ContextOperand(cache, Context::JSFUNCTION_RESULT_CACHES_INDEX));
3477 __ ldr(cache, 3479 __ ldr(cache,
3478 FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id))); 3480 FieldMemOperand(cache, FixedArray::OffsetOfElementAt(cache_id)));
3479 3481
3480 3482
3481 Label done, not_found; 3483 Label done, not_found;
3482 // tmp now holds finger offset as a smi. 3484 // tmp now holds finger offset as a smi.
3483 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1); 3485 STATIC_ASSERT(kSmiTag == 0 && kSmiTagSize == 1);
3484 __ ldr(r2, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset)); 3486 __ ldr(r2, FieldMemOperand(cache, JSFunctionResultCache::kFingerOffset));
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4565 *context_length = 0; 4567 *context_length = 0;
4566 return previous_; 4568 return previous_;
4567 } 4569 }
4568 4570
4569 4571
4570 #undef __ 4572 #undef __
4571 4573
4572 } } // namespace v8::internal 4574 } } // namespace v8::internal
4573 4575
4574 #endif // V8_TARGET_ARCH_ARM 4576 #endif // V8_TARGET_ARCH_ARM
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