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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef VM_CONSTANTS_MIPS_H_ | 5 #ifndef VM_CONSTANTS_MIPS_H_ |
6 #define VM_CONSTANTS_MIPS_H_ | 6 #define VM_CONSTANTS_MIPS_H_ |
7 | 7 |
8 #include "platform/assert.h" | 8 #include "platform/assert.h" |
9 | 9 |
10 namespace dart { | 10 namespace dart { |
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171 // Architecture independent aliases. | 171 // Architecture independent aliases. |
172 typedef DRegister FpuRegister; | 172 typedef DRegister FpuRegister; |
173 const FpuRegister FpuTMP = DTMP; | 173 const FpuRegister FpuTMP = DTMP; |
174 const int kNumberOfFpuRegisters = kNumberOfDRegisters; | 174 const int kNumberOfFpuRegisters = kNumberOfDRegisters; |
175 const FpuRegister kNoFpuRegister = kNoDRegister; | 175 const FpuRegister kNoFpuRegister = kNoDRegister; |
176 | 176 |
177 | 177 |
178 // Register aliases. | 178 // Register aliases. |
179 const Register TMP = AT; // Used as scratch register by assembler. | 179 const Register TMP = AT; // Used as scratch register by assembler. |
180 const Register TMP2 = kNoRegister; // No second assembler scratch register. | 180 const Register TMP2 = kNoRegister; // No second assembler scratch register. |
181 const Register CTX = S6; // Caches current context in generated code. | 181 const Register CTX = S6; // Location of current context at method entry. |
182 const Register PP = S7; // Caches object pool pointer in generated code. | 182 const Register PP = S7; // Caches object pool pointer in generated code. |
183 const Register SPREG = SP; // Stack pointer register. | 183 const Register SPREG = SP; // Stack pointer register. |
184 const Register FPREG = FP; // Frame pointer register. | 184 const Register FPREG = FP; // Frame pointer register. |
185 const Register ICREG = S5; // IC data register. | 185 const Register ICREG = S5; // IC data register. |
186 const Register ARGS_DESC_REG = S4; | 186 const Register ARGS_DESC_REG = S4; |
187 | 187 |
188 // The code that generates a comparison can be far away from the code that | 188 // The code that generates a comparison can be far away from the code that |
189 // generates the branch that uses the result of that comparison. In this case, | 189 // generates the branch that uses the result of that comparison. In this case, |
190 // CMPRES1 and CMPRES2 are used for the results of the comparison. We need two | 190 // CMPRES1 and CMPRES2 are used for the results of the comparison. We need two |
191 // since TMP is clobbered by a far branch. | 191 // since TMP is clobbered by a far branch. |
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639 #endif // defined(DEBUG) | 639 #endif // defined(DEBUG) |
640 | 640 |
641 private: | 641 private: |
642 DISALLOW_ALLOCATION(); | 642 DISALLOW_ALLOCATION(); |
643 DISALLOW_IMPLICIT_CONSTRUCTORS(Instr); | 643 DISALLOW_IMPLICIT_CONSTRUCTORS(Instr); |
644 }; | 644 }; |
645 | 645 |
646 } // namespace dart | 646 } // namespace dart |
647 | 647 |
648 #endif // VM_CONSTANTS_MIPS_H_ | 648 #endif // VM_CONSTANTS_MIPS_H_ |
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