1 // Copyright 2014 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.
5 #ifndef V8_COMPILER_REGISTER_CONFIGURATION_H_
6 #define V8_COMPILER_REGISTER_CONFIGURATION_H_
14 // An architecture independent representation of the sets of registers available
15 // for instruction creation.
16 class RegisterConfiguration {
18 // Architecture independent maxes.
19 static const int kMaxGeneralRegisters = 32;
20 static const int kMaxDoubleRegisters = 32;
22 static const RegisterConfiguration* ArchDefault();
24 RegisterConfiguration(int num_general_registers, int num_double_registers,
25 int num_aliased_double_registers,
26 const char* const* general_register_name,
27 const char* const* double_register_name);
29 int num_general_registers() const { return num_general_registers_; }
30 int num_double_registers() const { return num_double_registers_; }
31 int num_aliased_double_registers() const {
32 return num_aliased_double_registers_;
35 const char* general_register_name(int offset) const {
36 DCHECK(offset >= 0 && offset < kMaxGeneralRegisters);
37 return general_register_names_[offset];
39 const char* double_register_name(int offset) const {
40 DCHECK(offset >= 0 && offset < kMaxDoubleRegisters);
41 return double_register_names_[offset];
45 const int num_general_registers_;
46 const int num_double_registers_;
47 const int num_aliased_double_registers_;
48 const char* const* general_register_names_;
49 const char* const* double_register_names_;
52 } // namespace compiler
53 } // namespace internal
56 #endif // V8_COMPILER_REGISTER_CONFIGURATION_H_