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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions are | 5 // modification, are permitted provided that the following conditions are |
6 // met: | 6 // met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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118 | 118 |
119 static const int kNumRegisters = Code::kAfterLast; | 119 static const int kNumRegisters = Code::kAfterLast; |
120 | 120 |
121 static Register from_code(int code) { | 121 static Register from_code(int code) { |
122 DCHECK(code >= 0); | 122 DCHECK(code >= 0); |
123 DCHECK(code < kNumRegisters); | 123 DCHECK(code < kNumRegisters); |
124 Register r = { code }; | 124 Register r = { code }; |
125 return r; | 125 return r; |
126 } | 126 } |
127 | 127 |
128 const char* ToString(); | |
129 bool IsAllocatable(RegisterConfiguration::CompilerSelector compiler = | |
130 RegisterConfiguration::CRANKSHAFT) const; | |
131 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } | 128 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } |
132 bool is(Register reg) const { return reg_code == reg.reg_code; } | 129 bool is(Register reg) const { return reg_code == reg.reg_code; } |
133 int code() const { | 130 int code() const { |
134 DCHECK(is_valid()); | 131 DCHECK(is_valid()); |
135 return reg_code; | 132 return reg_code; |
136 } | 133 } |
137 int bit() const { | 134 int bit() const { |
138 DCHECK(is_valid()); | 135 DCHECK(is_valid()); |
139 return 1 << reg_code; | 136 return 1 << reg_code; |
140 } | 137 } |
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169 }; | 166 }; |
170 | 167 |
171 static const int kMaxNumRegisters = Code::kAfterLast; | 168 static const int kMaxNumRegisters = Code::kAfterLast; |
172 | 169 |
173 inline static int NumRegisters(); | 170 inline static int NumRegisters(); |
174 | 171 |
175 // TODO(plind): Warning, inconsistent numbering here. kNumFPURegisters refers | 172 // TODO(plind): Warning, inconsistent numbering here. kNumFPURegisters refers |
176 // to number of 32-bit FPU regs, but kNumAllocatableRegisters refers to | 173 // to number of 32-bit FPU regs, but kNumAllocatableRegisters refers to |
177 // number of Double regs (64-bit regs, or FPU-reg-pairs). | 174 // number of Double regs (64-bit regs, or FPU-reg-pairs). |
178 | 175 |
179 const char* ToString(); | |
180 bool IsAllocatable(RegisterConfiguration::CompilerSelector compiler = | |
181 RegisterConfiguration::CRANKSHAFT) const; | |
182 bool is_valid() const { return 0 <= reg_code && reg_code < kMaxNumRegisters; } | 176 bool is_valid() const { return 0 <= reg_code && reg_code < kMaxNumRegisters; } |
183 bool is(FPURegister reg) const { return reg_code == reg.reg_code; } | 177 bool is(FPURegister reg) const { return reg_code == reg.reg_code; } |
184 FPURegister low() const { | 178 FPURegister low() const { |
185 // TODO(plind): Create DCHECK for FR=0 mode. This usage suspect for FR=1. | 179 // TODO(plind): Create DCHECK for FR=0 mode. This usage suspect for FR=1. |
186 // Find low reg of a Double-reg pair, which is the reg itself. | 180 // Find low reg of a Double-reg pair, which is the reg itself. |
187 DCHECK(reg_code % 2 == 0); // Specified Double reg must be even. | 181 DCHECK(reg_code % 2 == 0); // Specified Double reg must be even. |
188 FPURegister reg; | 182 FPURegister reg; |
189 reg.reg_code = reg_code; | 183 reg.reg_code = reg_code; |
190 DCHECK(reg.is_valid()); | 184 DCHECK(reg.is_valid()); |
191 return reg; | 185 return reg; |
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1523 public: | 1517 public: |
1524 explicit EnsureSpace(Assembler* assembler) { | 1518 explicit EnsureSpace(Assembler* assembler) { |
1525 assembler->CheckBuffer(); | 1519 assembler->CheckBuffer(); |
1526 } | 1520 } |
1527 }; | 1521 }; |
1528 | 1522 |
1529 } // namespace internal | 1523 } // namespace internal |
1530 } // namespace v8 | 1524 } // namespace v8 |
1531 | 1525 |
1532 #endif // V8_ARM_ASSEMBLER_MIPS_H_ | 1526 #endif // V8_ARM_ASSEMBLER_MIPS_H_ |
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