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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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169 | 169 |
170 // Architecture independent aliases. | 170 // Architecture independent aliases. |
171 typedef DRegister FpuRegister; | 171 typedef DRegister FpuRegister; |
172 const FpuRegister FpuTMP = DTMP; | 172 const FpuRegister FpuTMP = DTMP; |
173 const int kNumberOfFpuRegisters = kNumberOfDRegisters; | 173 const int kNumberOfFpuRegisters = kNumberOfDRegisters; |
174 const FpuRegister kNoFpuRegister = kNoDRegister; | 174 const FpuRegister kNoFpuRegister = kNoDRegister; |
175 | 175 |
176 | 176 |
177 // Register aliases. | 177 // Register aliases. |
178 const Register TMP = AT; // Used as scratch register by assembler. | 178 const Register TMP = AT; // Used as scratch register by assembler. |
| 179 const Register TMP2 = kNoRegister; // No second assembler scratch register. |
179 const Register CTX = S6; // Caches current context in generated code. | 180 const Register CTX = S6; // Caches current context in generated code. |
180 const Register PP = S7; // Caches object pool pointer in generated code. | 181 const Register PP = S7; // Caches object pool pointer in generated code. |
181 const Register SPREG = SP; // Stack pointer register. | 182 const Register SPREG = SP; // Stack pointer register. |
182 const Register FPREG = FP; // Frame pointer register. | 183 const Register FPREG = FP; // Frame pointer register. |
183 const Register ICREG = S5; // IC data register. | 184 const Register ICREG = S5; // IC data register. |
184 | 185 |
185 // The code that generates a comparison can be far away from the code that | 186 // The code that generates a comparison can be far away from the code that |
186 // generates the branch that uses the result of that comparison. In this case, | 187 // generates the branch that uses the result of that comparison. In this case, |
187 // CMPRES1 and CMPRES2 are used for the results of the comparison. We need two | 188 // CMPRES1 and CMPRES2 are used for the results of the comparison. We need two |
188 // since TMP is clobbered by a far branch. | 189 // since TMP is clobbered by a far branch. |
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612 #endif // defined(DEBUG) | 613 #endif // defined(DEBUG) |
613 | 614 |
614 private: | 615 private: |
615 DISALLOW_ALLOCATION(); | 616 DISALLOW_ALLOCATION(); |
616 DISALLOW_IMPLICIT_CONSTRUCTORS(Instr); | 617 DISALLOW_IMPLICIT_CONSTRUCTORS(Instr); |
617 }; | 618 }; |
618 | 619 |
619 } // namespace dart | 620 } // namespace dart |
620 | 621 |
621 #endif // VM_CONSTANTS_MIPS_H_ | 622 #endif // VM_CONSTANTS_MIPS_H_ |
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