| // Copyright 2018 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef V8_COMMON_PTR_COMPR_H_ |
| #define V8_COMMON_PTR_COMPR_H_ |
| |
| #include "src/common/globals.h" |
| |
| #if V8_TARGET_ARCH_64_BIT |
| |
| namespace v8 { |
| namespace internal { |
| |
| // See v8:7703 for details about how pointer compression works. |
| constexpr size_t kPtrComprHeapReservationSize = size_t{4} * GB; |
| constexpr size_t kPtrComprIsolateRootBias = kPtrComprHeapReservationSize / 2; |
| constexpr size_t kPtrComprIsolateRootAlignment = size_t{4} * GB; |
| |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_TARGET_ARCH_64_BIT |
| |
| #endif // V8_COMMON_PTR_COMPR_H_ |
