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| 1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef V8_ARM64_CONSTANTS_ARM64_H_ | 5 #ifndef V8_ARM64_CONSTANTS_ARM64_H_ |
| 6 #define V8_ARM64_CONSTANTS_ARM64_H_ | 6 #define V8_ARM64_CONSTANTS_ARM64_H_ |
| 7 | 7 |
| 8 | 8 |
| 9 // Assert that this is an LP64 system. | 9 // Assert that this is an LP64 system. |
| 10 STATIC_ASSERT(sizeof(int) == sizeof(int32_t)); // NOLINT(runtime/sizeof) | 10 STATIC_ASSERT(sizeof(int) == sizeof(int32_t)); // NOLINT(runtime/sizeof) |
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| 32 const unsigned kNumberOfFPRegisters = 32; | 32 const unsigned kNumberOfFPRegisters = 32; |
| 33 // Callee saved registers are x19-x30(lr). | 33 // Callee saved registers are x19-x30(lr). |
| 34 const int kNumberOfCalleeSavedRegisters = 11; | 34 const int kNumberOfCalleeSavedRegisters = 11; |
| 35 const int kFirstCalleeSavedRegisterIndex = 19; | 35 const int kFirstCalleeSavedRegisterIndex = 19; |
| 36 // Callee saved FP registers are d8-d15. | 36 // Callee saved FP registers are d8-d15. |
| 37 const int kNumberOfCalleeSavedFPRegisters = 8; | 37 const int kNumberOfCalleeSavedFPRegisters = 8; |
| 38 const int kFirstCalleeSavedFPRegisterIndex = 8; | 38 const int kFirstCalleeSavedFPRegisterIndex = 8; |
| 39 // Callee saved registers with no specific purpose in JS are x19-x25. | 39 // Callee saved registers with no specific purpose in JS are x19-x25. |
| 40 const unsigned kJSCalleeSavedRegList = 0x03f80000; | 40 const unsigned kJSCalleeSavedRegList = 0x03f80000; |
| 41 // TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits. | 41 // TODO(all): k<Y>RegSize should probably be k<Y>RegSizeInBits. |
| 42 const unsigned kWRegSizeInBits = 32; | 42 const int kWRegSizeInBits = 32; |
| 43 const unsigned kWRegSizeInBitsLog2 = 5; | 43 const int kWRegSizeInBitsLog2 = 5; |
| 44 const unsigned kWRegSize = kWRegSizeInBits >> 3; | 44 const int kWRegSize = kWRegSizeInBits >> 3; |
| 45 const unsigned kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3; | 45 const int kWRegSizeLog2 = kWRegSizeInBitsLog2 - 3; |
| 46 const unsigned kXRegSizeInBits = 64; | 46 const int kXRegSizeInBits = 64; |
| 47 const unsigned kXRegSizeInBitsLog2 = 6; | 47 const int kXRegSizeInBitsLog2 = 6; |
| 48 const unsigned kXRegSize = kXRegSizeInBits >> 3; | 48 const int kXRegSize = kXRegSizeInBits >> 3; |
| 49 const unsigned kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3; | 49 const int kXRegSizeLog2 = kXRegSizeInBitsLog2 - 3; |
| 50 const unsigned kSRegSizeInBits = 32; | 50 const int kSRegSizeInBits = 32; |
| 51 const unsigned kSRegSizeInBitsLog2 = 5; | 51 const int kSRegSizeInBitsLog2 = 5; |
| 52 const unsigned kSRegSize = kSRegSizeInBits >> 3; | 52 const int kSRegSize = kSRegSizeInBits >> 3; |
| 53 const unsigned kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3; | 53 const int kSRegSizeLog2 = kSRegSizeInBitsLog2 - 3; |
| 54 const unsigned kDRegSizeInBits = 64; | 54 const int kDRegSizeInBits = 64; |
| 55 const unsigned kDRegSizeInBitsLog2 = 6; | 55 const int kDRegSizeInBitsLog2 = 6; |
| 56 const unsigned kDRegSize = kDRegSizeInBits >> 3; | 56 const int kDRegSize = kDRegSizeInBits >> 3; |
| 57 const unsigned kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3; | 57 const int kDRegSizeLog2 = kDRegSizeInBitsLog2 - 3; |
| 58 const int64_t kWRegMask = 0x00000000ffffffffL; | 58 const int64_t kWRegMask = 0x00000000ffffffffL; |
| 59 const int64_t kXRegMask = 0xffffffffffffffffL; | 59 const int64_t kXRegMask = 0xffffffffffffffffL; |
| 60 const int64_t kSRegMask = 0x00000000ffffffffL; | 60 const int64_t kSRegMask = 0x00000000ffffffffL; |
| 61 const int64_t kDRegMask = 0xffffffffffffffffL; | 61 const int64_t kDRegMask = 0xffffffffffffffffL; |
| 62 // TODO(all) check if the expression below works on all compilers or if it | 62 // TODO(all) check if the expression below works on all compilers or if it |
| 63 // triggers an overflow error. | 63 // triggers an overflow error. |
| 64 const int64_t kDSignBit = 63; | 64 const int64_t kDSignBit = 63; |
| 65 const int64_t kDSignMask = 0x1L << kDSignBit; | 65 const int64_t kDSignMask = 0x1L << kDSignBit; |
| 66 const int64_t kSSignBit = 31; | 66 const int64_t kSSignBit = 31; |
| 67 const int64_t kSSignMask = 0x1L << kSSignBit; | 67 const int64_t kSSignMask = 0x1L << kSSignBit; |
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| 1241 }; | 1241 }; |
| 1242 | 1242 |
| 1243 enum UnallocatedOp { | 1243 enum UnallocatedOp { |
| 1244 UnallocatedFixed = 0x00000000, | 1244 UnallocatedFixed = 0x00000000, |
| 1245 UnallocatedFMask = 0x00000000 | 1245 UnallocatedFMask = 0x00000000 |
| 1246 }; | 1246 }; |
| 1247 | 1247 |
| 1248 } } // namespace v8::internal | 1248 } } // namespace v8::internal |
| 1249 | 1249 |
| 1250 #endif // V8_ARM64_CONSTANTS_ARM64_H_ | 1250 #endif // V8_ARM64_CONSTANTS_ARM64_H_ |
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