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| 1 // Copyright 2010 the V8 project authors. All rights reserved. | |
| 2 // Redistribution and use in source and binary forms, with or without | |
| 3 // modification, are permitted provided that the following conditions are | |
| 4 // met: | |
| 5 // | |
| 6 // * Redistributions of source code must retain the above copyright | |
| 7 // notice, this list of conditions and the following disclaimer. | |
| 8 // * Redistributions in binary form must reproduce the above | |
| 9 // copyright notice, this list of conditions and the following | |
| 10 // disclaimer in the documentation and/or other materials provided | |
| 11 // with the distribution. | |
| 12 // * Neither the name of Google Inc. nor the names of its | |
| 13 // contributors may be used to endorse or promote products derived | |
| 14 // from this software without specific prior written permission. | |
| 15 // | |
| 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 27 | |
| 28 #ifndef V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_ | |
| 29 #define V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_ | |
| 30 | |
| 31 #include "v8.h" | |
| 32 #include "mips/assembler-mips.h" | |
| 33 | |
| 34 namespace v8 { | |
| 35 namespace internal { | |
| 36 | |
| 37 // ------------------------------------------------------------------------- | |
| 38 // RegisterAllocator implementation. | |
| 39 | |
| 40 bool RegisterAllocator::IsReserved(Register reg) { | |
| 41 // The code for this test relies on the order of register codes. | |
| 42 return reg.is(cp) || reg.is(s8_fp) || reg.is(sp); | |
| 43 } | |
| 44 | |
| 45 | |
| 46 int RegisterAllocator::ToNumber(Register reg) { | |
| 47 ASSERT(reg.is_valid() && !IsReserved(reg)); | |
| 48 const int kNumbers[] = { | |
| 49 0, // zero_reg | |
| 50 1, // at | |
| 51 2, // v0 | |
| 52 3, // v1 | |
| 53 4, // a0 | |
| 54 5, // a1 | |
| 55 6, // a2 | |
| 56 7, // a3 | |
| 57 8, // t0 | |
| 58 9, // t1 | |
| 59 10, // t2 | |
| 60 11, // t3 | |
| 61 12, // t4 | |
| 62 13, // t5 | |
| 63 14, // t | |
| 64 15, // t7 | |
| 65 16, // t8 | |
| 66 17, // t9 | |
| 67 18, // s0 | |
| 68 19, // s1 | |
| 69 20, // s2 | |
| 70 21, // s3 | |
| 71 22, // s4 | |
| 72 23, // s5 | |
| 73 24, // s6 | |
| 74 25, // s7 | |
| 75 26, // k0 | |
| 76 27, // k1 | |
| 77 28, // gp | |
| 78 29, // sp | |
| 79 30, // s8_fp | |
| 80 31, // ra | |
| 81 }; | |
| 82 return kNumbers[reg.code()]; | |
| 83 } | |
| 84 | |
| 85 | |
| 86 Register RegisterAllocator::ToRegister(int num) { | |
| 87 ASSERT(num >= 0 && num < kNumRegisters); | |
| 88 const Register kRegisters[] = { | |
| 89 zero_reg, | |
| 90 at, | |
| 91 v0, | |
| 92 v1, | |
| 93 a0, | |
| 94 a1, | |
| 95 a2, | |
| 96 a3, | |
| 97 t0, | |
| 98 t1, | |
| 99 t2, | |
| 100 t3, | |
| 101 t4, | |
| 102 t5, | |
| 103 t6, | |
| 104 t7, | |
| 105 s0, | |
| 106 s1, | |
| 107 s2, | |
| 108 s3, | |
| 109 s4, | |
| 110 s5, | |
| 111 s6, | |
| 112 s7, | |
| 113 t8, | |
| 114 t9, | |
| 115 k0, | |
| 116 k1, | |
| 117 gp, | |
| 118 sp, | |
| 119 s8_fp, | |
| 120 ra | |
| 121 }; | |
| 122 return kRegisters[num]; | |
| 123 } | |
| 124 | |
| 125 | |
| 126 void RegisterAllocator::Initialize() { | |
| 127 Reset(); | |
| 128 } | |
| 129 | |
| 130 | |
| 131 } } // namespace v8::internal | |
| 132 | |
| 133 #endif // V8_IA32_REGISTER_ALLOCATOR_MIPS_INL_H_ | |
| 134 | |
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