| // Copyright (c) 2018, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #ifndef RUNTIME_VM_CONSTANTS_H_ |
| #define RUNTIME_VM_CONSTANTS_H_ |
| |
| namespace dart { |
| |
| // Alignment strategies for how to align values. |
| enum AlignmentStrategy { |
| // Align to the size of the value. |
| kAlignedToValueSize, |
| // Align to the size of the value, but align 8 byte-sized values to 4 bytes. |
| // Both double and int64. |
| kAlignedToValueSizeBut8AlignedTo4, |
| // Align to the architecture size. |
| kAlignedToWordSize, |
| // Align to the architecture size, but align 8 byte-sized values to 8 bytes. |
| // Both double and int64. |
| kAlignedToWordSizeBut8AlignedTo8, |
| }; |
| |
| // Minimum size strategies for how to store values. |
| enum ExtensionStrategy { |
| // Values can have arbitrary small size with the upper bits undefined. |
| kNotExtended, |
| // Values smaller than 4 bytes are passed around zero- or signextended to |
| // 4 bytes. |
| kExtendedTo4 |
| }; |
| |
| } // namespace dart |
| |
| #if defined(TARGET_ARCH_IA32) |
| #include "vm/constants_ia32.h" |
| #elif defined(TARGET_ARCH_X64) |
| #include "vm/constants_x64.h" |
| #elif defined(TARGET_ARCH_ARM) |
| #include "vm/constants_arm.h" |
| #elif defined(TARGET_ARCH_ARM64) |
| #include "vm/constants_arm64.h" |
| #else |
| #error Unknown architecture. |
| #endif |
| |
| namespace dart { |
| |
| class RegisterNames { |
| public: |
| static const char* RegisterName(Register reg) { |
| ASSERT((0 <= reg) && (reg < kNumberOfCpuRegisters)); |
| return cpu_reg_names[reg]; |
| } |
| static const char* FpuRegisterName(FpuRegister reg) { |
| ASSERT((0 <= reg) && (reg < kNumberOfFpuRegisters)); |
| return fpu_reg_names[reg]; |
| } |
| #if defined(TARGET_ARCH_ARM) |
| static const char* FpuSRegisterName(SRegister reg) { |
| ASSERT((0 <= reg) && (reg < kNumberOfSRegisters)); |
| return fpu_s_reg_names[reg]; |
| } |
| static const char* FpuDRegisterName(DRegister reg) { |
| ASSERT((0 <= reg) && (reg < kNumberOfDRegisters)); |
| return fpu_d_reg_names[reg]; |
| } |
| #endif // defined(TARGET_ARCH_ARM) |
| }; |
| |
| static constexpr bool IsArgumentRegister(Register reg) { |
| return ((1 << reg) & CallingConventions::kArgumentRegisters) != 0; |
| } |
| |
| static constexpr bool IsFpuArgumentRegister(FpuRegister reg) { |
| return ((1 << reg) & CallingConventions::kFpuArgumentRegisters) != 0; |
| } |
| |
| static constexpr bool IsCalleeSavedRegister(Register reg) { |
| return ((1 << reg) & CallingConventions::kCalleeSaveCpuRegisters) != 0; |
| } |
| |
| } // namespace dart |
| |
| #endif // RUNTIME_VM_CONSTANTS_H_ |