CPURegister::RegisterType type_;
bool IsValid() const {
- if ((type_ == CPURegister::kRegister) ||
- (type_ == CPURegister::kFPRegister)) {
- bool is_valid = true;
- // Try to create a CPURegister for each element in the list.
- for (int i = 0; i < kRegListSizeInBits; i++) {
- if (((list_ >> i) & 1) != 0) {
- is_valid &= CPURegister::Create(i, size_, type_).IsValid();
- }
- }
- return is_valid;
- } else if (type_ == CPURegister::kNoRegister) {
- // The kNoRegister type is valid only for empty lists.
- // We can't use IsEmpty here because that asserts IsValid().
- return list_ == 0;
- } else {
- return false;
+ const RegList kValidRegisters = 0x8000000ffffffff;
+ const RegList kValidFPRegisters = 0x0000000ffffffff;
+ switch (type_) {
+ case CPURegister::kRegister:
+ return (list_ & kValidRegisters) == list_;
+ case CPURegister::kFPRegister:
+ return (list_ & kValidFPRegisters) == list_;
+ case CPURegister::kNoRegister:
+ return list_ == 0;
+ default:
+ UNREACHABLE();
+ return false;
}
}
};