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Issue 6713074: Require an isolate parameter for most external reference creation to (Closed) Base URL: https://v8.googlecode.com/svn/branches/bleeding_edge
Patch Set: Further cleanup Created 9 years, 9 months ago
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1 // Copyright 2011 the V8 project authors. All rights reserved. 1 // Copyright 2011 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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2694 __ bind(&slow_allocate_heapnumber); 2694 __ bind(&slow_allocate_heapnumber);
2695 // Allocate a heap number. 2695 // Allocate a heap number.
2696 __ CallRuntime(Runtime::kNumberAlloc, 0); 2696 __ CallRuntime(Runtime::kNumberAlloc, 0);
2697 __ movq(rbx, rax); 2697 __ movq(rbx, rax);
2698 2698
2699 __ bind(&heapnumber_allocated); 2699 __ bind(&heapnumber_allocated);
2700 2700
2701 // Return a random uint32 number in rax. 2701 // Return a random uint32 number in rax.
2702 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs. 2702 // The fresh HeapNumber is in rbx, which is callee-save on both x64 ABIs.
2703 __ PrepareCallCFunction(0); 2703 __ PrepareCallCFunction(0);
2704 __ CallCFunction(ExternalReference::random_uint32_function(), 0); 2704 __ CallCFunction(ExternalReference::random_uint32_function(isolate()), 0);
2705 2705
2706 // Convert 32 random bits in rax to 0.(32 random bits) in a double 2706 // Convert 32 random bits in rax to 0.(32 random bits) in a double
2707 // by computing: 2707 // by computing:
2708 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)). 2708 // ( 1.(20 0s)(32 random bits) x 2^20 ) - (1.0 x 2^20)).
2709 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single. 2709 __ movl(rcx, Immediate(0x49800000)); // 1.0 x 2^20 as single.
2710 __ movd(xmm1, rcx); 2710 __ movd(xmm1, rcx);
2711 __ movd(xmm0, rax); 2711 __ movd(xmm0, rax);
2712 __ cvtss2sd(xmm1, xmm1); 2712 __ cvtss2sd(xmm1, xmm1);
2713 __ xorpd(xmm0, xmm1); 2713 __ xorpd(xmm0, xmm1);
2714 __ subsd(xmm0, xmm1); 2714 __ subsd(xmm0, xmm1);
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3996 __ ret(0); 3996 __ ret(0);
3997 } 3997 }
3998 3998
3999 3999
4000 #undef __ 4000 #undef __
4001 4001
4002 4002
4003 } } // namespace v8::internal 4003 } } // namespace v8::internal
4004 4004
4005 #endif // V8_TARGET_ARCH_X64 4005 #endif // V8_TARGET_ARCH_X64
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