1 // Copyright 2018 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef V8_CODEGEN_X64_CONSTANTS_X64_H_ 6 #define V8_CODEGEN_X64_CONSTANTS_X64_H_ 7 8 #include "src/common/globals.h" 9 10 namespace v8 { 11 namespace internal { 12 // Actual value of root register is offset from the root array's start 13 // to take advantage of negative displacement values. 14 // TODO(sigurds): Choose best value. 15 // TODO(ishell): Choose best value for ptr-compr. 16 constexpr int kRootRegisterBias = kSystemPointerSize == kTaggedSize ? 128 : 0; 17 18 constexpr size_t kMaxPCRelativeCodeRangeInMB = 2048; 19 } // namespace internal 20 } // namespace v8 21 22 #endif // V8_CODEGEN_X64_CONSTANTS_X64_H_ 23