OLD | NEW |
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 |
(...skipping 42 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
53 // r5 <-> 5 | 53 // r5 <-> 5 |
54 // r6 <-> 6 | 54 // r6 <-> 6 |
55 // r7 <-> 7 | 55 // r7 <-> 7 |
56 // r9 <-> 8 | 56 // r9 <-> 8 |
57 // r10 <-> 9 | 57 // r10 <-> 9 |
58 // ip <-> 10 | 58 // ip <-> 10 |
59 // lr <-> 11 | 59 // lr <-> 11 |
60 | 60 |
61 int RegisterAllocator::ToNumber(Register reg) { | 61 int RegisterAllocator::ToNumber(Register reg) { |
62 ASSERT(reg.is_valid() && !IsReserved(reg)); | 62 ASSERT(reg.is_valid() && !IsReserved(reg)); |
63 static int numbers[] = { | 63 const int kNumbers[] = { |
64 0, // r0 | 64 0, // r0 |
65 1, // r1 | 65 1, // r1 |
66 2, // r2 | 66 2, // r2 |
67 3, // r3 | 67 3, // r3 |
68 4, // r4 | 68 4, // r4 |
69 5, // r5 | 69 5, // r5 |
70 6, // r6 | 70 6, // r6 |
71 7, // r7 | 71 7, // r7 |
72 -1, // cp | 72 -1, // cp |
73 8, // r9 | 73 8, // r9 |
74 9, // r10 | 74 9, // r10 |
75 -1, // fp | 75 -1, // fp |
76 10, // ip | 76 10, // ip |
77 -1, // sp | 77 -1, // sp |
78 11, // lr | 78 11, // lr |
79 -1 // pc | 79 -1 // pc |
80 }; | 80 }; |
81 return numbers[reg.code()]; | 81 return kNumbers[reg.code()]; |
82 } | 82 } |
83 | 83 |
84 | 84 |
85 Register RegisterAllocator::ToRegister(int num) { | 85 Register RegisterAllocator::ToRegister(int num) { |
86 ASSERT(num >= 0 && num < kNumRegisters); | 86 ASSERT(num >= 0 && num < kNumRegisters); |
87 static Register registers[] = | 87 const Register kRegisters[] = |
88 { r0, r1, r2, r3, r4, r5, r6, r7, r9, r10, ip, lr }; | 88 { r0, r1, r2, r3, r4, r5, r6, r7, r9, r10, ip, lr }; |
89 return registers[num]; | 89 return kRegisters[num]; |
90 } | 90 } |
91 | 91 |
92 | 92 |
93 void RegisterAllocator::Initialize() { | 93 void RegisterAllocator::Initialize() { |
94 Reset(); | 94 Reset(); |
95 // The non-reserved r1 and lr registers are live on JS function entry. | 95 // The non-reserved r1 and lr registers are live on JS function entry. |
96 Use(r1); // JS function. | 96 Use(r1); // JS function. |
97 Use(lr); // Return address. | 97 Use(lr); // Return address. |
98 } | 98 } |
99 | 99 |
100 | 100 |
101 } } // namespace v8::internal | 101 } } // namespace v8::internal |
102 | 102 |
103 #endif // V8_ARM_REGISTER_ALLOCATOR_ARM_INL_H_ | 103 #endif // V8_ARM_REGISTER_ALLOCATOR_ARM_INL_H_ |
OLD | NEW |