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Side by Side Diff: src/ia32/register-allocator-ia32-inl.h

Issue 149799: Avoid more static variables in inline functions. (Closed) Base URL: http://v8.googlecode.com/svn/branches/bleeding_edge/
Patch Set: Created 11 years, 5 months ago
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1 // Copyright 2009 the V8 project authors. All rights reserved. 1 // Copyright 2009 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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42 } 42 }
43 43
44 44
45 // The register allocator uses small integers to represent the 45 // The register allocator uses small integers to represent the
46 // non-reserved assembler registers. The mapping is: 46 // non-reserved assembler registers. The mapping is:
47 47
48 // eax <-> 0, ebx <-> 1, ecx <-> 2, edx <-> 3, edi <-> 4. 48 // eax <-> 0, ebx <-> 1, ecx <-> 2, edx <-> 3, edi <-> 4.
49 49
50 int RegisterAllocator::ToNumber(Register reg) { 50 int RegisterAllocator::ToNumber(Register reg) {
51 ASSERT(reg.is_valid() && !IsReserved(reg)); 51 ASSERT(reg.is_valid() && !IsReserved(reg));
52 static int numbers[] = { 52 const int kNumbers[] = {
53 0, // eax 53 0, // eax
54 2, // ecx 54 2, // ecx
55 3, // edx 55 3, // edx
56 1, // ebx 56 1, // ebx
57 -1, // esp 57 -1, // esp
58 -1, // ebp 58 -1, // ebp
59 -1, // esi 59 -1, // esi
60 4 // edi 60 4 // edi
61 }; 61 };
62 return numbers[reg.code()]; 62 return kNumbers[reg.code()];
63 } 63 }
64 64
65 65
66 Register RegisterAllocator::ToRegister(int num) { 66 Register RegisterAllocator::ToRegister(int num) {
67 ASSERT(num >= 0 && num < kNumRegisters); 67 ASSERT(num >= 0 && num < kNumRegisters);
68 const Register registers[] = { eax, ebx, ecx, edx, edi }; 68 const Register kRegisters[] = { eax, ebx, ecx, edx, edi };
69 return registers[num]; 69 return kRegisters[num];
70 } 70 }
71 71
72 72
73 void RegisterAllocator::Initialize() { 73 void RegisterAllocator::Initialize() {
74 Reset(); 74 Reset();
75 // The non-reserved edi register is live on JS function entry. 75 // The non-reserved edi register is live on JS function entry.
76 Use(edi); // JS function. 76 Use(edi); // JS function.
77 } 77 }
78 78
79 79
80 } } // namespace v8::internal 80 } } // namespace v8::internal
81 81
82 #endif // V8_IA32_REGISTER_ALLOCATOR_IA32_INL_H_ 82 #endif // V8_IA32_REGISTER_ALLOCATOR_IA32_INL_H_
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