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| 1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 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_OBJECTS_H_ | 5 #ifndef V8_OBJECTS_H_ |
| 6 #define V8_OBJECTS_H_ | 6 #define V8_OBJECTS_H_ |
| 7 | 7 |
| 8 #include <iosfwd> | 8 #include <iosfwd> |
| 9 | 9 |
| 10 #include "src/allocation.h" | 10 #include "src/allocation.h" |
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| 7405 | 7405 |
| 7406 STATIC_ASSERT(SharedFunctionInfo::kCompilerHintsCount <= | 7406 STATIC_ASSERT(SharedFunctionInfo::kCompilerHintsCount <= |
| 7407 SharedFunctionInfo::kCompilerHintsSize * kBitsPerByte); | 7407 SharedFunctionInfo::kCompilerHintsSize * kBitsPerByte); |
| 7408 | 7408 |
| 7409 public: | 7409 public: |
| 7410 // Constants for optimizing codegen for strict mode function and | 7410 // Constants for optimizing codegen for strict mode function and |
| 7411 // native tests. | 7411 // native tests. |
| 7412 // Allows to use byte-width instructions. | 7412 // Allows to use byte-width instructions. |
| 7413 static const int kStrictModeBitWithinByte = | 7413 static const int kStrictModeBitWithinByte = |
| 7414 (kStrictModeFunction + kCompilerHintsSmiTagSize) % kBitsPerByte; | 7414 (kStrictModeFunction + kCompilerHintsSmiTagSize) % kBitsPerByte; |
| 7415 static const int kStrongModeBitWithinByte = |
| 7416 (kStrongModeFunction + kCompilerHintsSmiTagSize) % kBitsPerByte; |
| 7415 | 7417 |
| 7416 static const int kNativeBitWithinByte = | 7418 static const int kNativeBitWithinByte = |
| 7417 (kNative + kCompilerHintsSmiTagSize) % kBitsPerByte; | 7419 (kNative + kCompilerHintsSmiTagSize) % kBitsPerByte; |
| 7418 | 7420 |
| 7419 #if defined(V8_TARGET_LITTLE_ENDIAN) | 7421 #if defined(V8_TARGET_LITTLE_ENDIAN) |
| 7420 static const int kStrictModeByteOffset = kCompilerHintsOffset + | 7422 static const int kStrictModeByteOffset = kCompilerHintsOffset + |
| 7421 (kStrictModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte; | 7423 (kStrictModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte; |
| 7424 static const int kStrongModeByteOffset = |
| 7425 kCompilerHintsOffset + |
| 7426 (kStrongModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte; |
| 7422 static const int kNativeByteOffset = kCompilerHintsOffset + | 7427 static const int kNativeByteOffset = kCompilerHintsOffset + |
| 7423 (kNative + kCompilerHintsSmiTagSize) / kBitsPerByte; | 7428 (kNative + kCompilerHintsSmiTagSize) / kBitsPerByte; |
| 7424 #elif defined(V8_TARGET_BIG_ENDIAN) | 7429 #elif defined(V8_TARGET_BIG_ENDIAN) |
| 7425 static const int kStrictModeByteOffset = kCompilerHintsOffset + | 7430 static const int kStrictModeByteOffset = kCompilerHintsOffset + |
| 7426 (kCompilerHintsSize - 1) - | 7431 (kCompilerHintsSize - 1) - |
| 7427 ((kStrictModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte); | 7432 ((kStrictModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte); |
| 7433 static const int kStrongModeByteOffset = |
| 7434 kCompilerHintsOffset + (kCompilerHintsSize - 1) - |
| 7435 ((kStrongModeFunction + kCompilerHintsSmiTagSize) / kBitsPerByte); |
| 7428 static const int kNativeByteOffset = kCompilerHintsOffset + | 7436 static const int kNativeByteOffset = kCompilerHintsOffset + |
| 7429 (kCompilerHintsSize - 1) - | 7437 (kCompilerHintsSize - 1) - |
| 7430 ((kNative + kCompilerHintsSmiTagSize) / kBitsPerByte); | 7438 ((kNative + kCompilerHintsSmiTagSize) / kBitsPerByte); |
| 7431 #else | 7439 #else |
| 7432 #error Unknown byte ordering | 7440 #error Unknown byte ordering |
| 7433 #endif | 7441 #endif |
| 7434 | 7442 |
| 7435 private: | 7443 private: |
| 7436 DISALLOW_IMPLICIT_CONSTRUCTORS(SharedFunctionInfo); | 7444 DISALLOW_IMPLICIT_CONSTRUCTORS(SharedFunctionInfo); |
| 7437 }; | 7445 }; |
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| 11106 } else { | 11114 } else { |
| 11107 value &= ~(1 << bit_position); | 11115 value &= ~(1 << bit_position); |
| 11108 } | 11116 } |
| 11109 return value; | 11117 return value; |
| 11110 } | 11118 } |
| 11111 }; | 11119 }; |
| 11112 | 11120 |
| 11113 } } // namespace v8::internal | 11121 } } // namespace v8::internal |
| 11114 | 11122 |
| 11115 #endif // V8_OBJECTS_H_ | 11123 #endif // V8_OBJECTS_H_ |
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