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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 | 5 // modification, are permitted provided that the following conditions |
| 6 // are met: | 6 // are 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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| 139 #undef REGISTER_BIT | 139 #undef REGISTER_BIT |
| 140 | 140 |
| 141 static Register from_code(int code) { | 141 static Register from_code(int code) { |
| 142 DCHECK(code >= 0); | 142 DCHECK(code >= 0); |
| 143 DCHECK(code < kNumRegisters); | 143 DCHECK(code < kNumRegisters); |
| 144 Register r = {code}; | 144 Register r = {code}; |
| 145 return r; | 145 return r; |
| 146 } | 146 } |
| 147 | 147 |
| 148 const char* ToString(); | 148 const char* ToString(); |
| 149 bool IsAllocatable() const; | 149 bool IsAllocatable(RegisterConfiguration::CompilerSelector compiler = |
| 150 RegisterConfiguration::CRANKSHAFT) const; |
| 150 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } | 151 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } |
| 151 bool is(Register reg) const { return reg_code == reg.reg_code; } | 152 bool is(Register reg) const { return reg_code == reg.reg_code; } |
| 152 int code() const { | 153 int code() const { |
| 153 DCHECK(is_valid()); | 154 DCHECK(is_valid()); |
| 154 return reg_code; | 155 return reg_code; |
| 155 } | 156 } |
| 156 int bit() const { | 157 int bit() const { |
| 157 DCHECK(is_valid()); | 158 DCHECK(is_valid()); |
| 158 return 1 << reg_code; | 159 return 1 << reg_code; |
| 159 } | 160 } |
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| 194 DOUBLE_REGISTERS(REGISTER_CODE) | 195 DOUBLE_REGISTERS(REGISTER_CODE) |
| 195 #undef REGISTER_CODE | 196 #undef REGISTER_CODE |
| 196 kAfterLast, | 197 kAfterLast, |
| 197 kCode_no_reg = -1 | 198 kCode_no_reg = -1 |
| 198 }; | 199 }; |
| 199 | 200 |
| 200 static const int kNumRegisters = Code::kAfterLast; | 201 static const int kNumRegisters = Code::kAfterLast; |
| 201 static const int kMaxNumRegisters = kNumRegisters; | 202 static const int kMaxNumRegisters = kNumRegisters; |
| 202 | 203 |
| 203 const char* ToString(); | 204 const char* ToString(); |
| 204 bool IsAllocatable() const; | 205 bool IsAllocatable(RegisterConfiguration::CompilerSelector compiler = |
| 206 RegisterConfiguration::CRANKSHAFT) const; |
| 205 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } | 207 bool is_valid() const { return 0 <= reg_code && reg_code < kNumRegisters; } |
| 206 bool is(DoubleRegister reg) const { return reg_code == reg.reg_code; } | 208 bool is(DoubleRegister reg) const { return reg_code == reg.reg_code; } |
| 207 | 209 |
| 208 int code() const { | 210 int code() const { |
| 209 DCHECK(is_valid()); | 211 DCHECK(is_valid()); |
| 210 return reg_code; | 212 return reg_code; |
| 211 } | 213 } |
| 212 | 214 |
| 213 int bit() const { | 215 int bit() const { |
| 214 DCHECK(is_valid()); | 216 DCHECK(is_valid()); |
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| 1458 | 1460 |
| 1459 class EnsureSpace BASE_EMBEDDED { | 1461 class EnsureSpace BASE_EMBEDDED { |
| 1460 public: | 1462 public: |
| 1461 explicit EnsureSpace(Assembler* assembler) { assembler->CheckBuffer(); } | 1463 explicit EnsureSpace(Assembler* assembler) { assembler->CheckBuffer(); } |
| 1462 }; | 1464 }; |
| 1463 | 1465 |
| 1464 } // namespace internal | 1466 } // namespace internal |
| 1465 } // namespace v8 | 1467 } // namespace v8 |
| 1466 | 1468 |
| 1467 #endif // V8_S390_ASSEMBLER_S390_H_ | 1469 #endif // V8_S390_ASSEMBLER_S390_H_ |
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