// aliasing registers. Use these iterator classes to traverse the lists.
/// MCSubRegIterator enumerates all sub-registers of Reg.
+/// If IncludeSelf is set, Reg itself is included in the list.
class MCSubRegIterator : public MCRegisterInfo::DiffListIterator {
public:
- MCSubRegIterator(unsigned Reg, const MCRegisterInfo *MCRI) {
+ MCSubRegIterator(unsigned Reg, const MCRegisterInfo *MCRI,
+ bool IncludeSelf = false) {
init(Reg, MCRI->DiffLists + MCRI->get(Reg).SubRegs);
- ++*this;
+ // Initially, the iterator points to Reg itself.
+ if (!IncludeSelf)
+ ++*this;
}
};
/// MCSuperRegIterator enumerates all super-registers of Reg.
+/// If IncludeSelf is set, Reg itself is included in the list.
class MCSuperRegIterator : public MCRegisterInfo::DiffListIterator {
public:
- MCSuperRegIterator(unsigned Reg, const MCRegisterInfo *MCRI) {
+ MCSuperRegIterator(unsigned Reg, const MCRegisterInfo *MCRI,
+ bool IncludeSelf = false) {
init(Reg, MCRI->DiffLists + MCRI->get(Reg).SuperRegs);
- ++*this;
+ // Initially, the iterator points to Reg itself.
+ if (!IncludeSelf)
+ ++*this;
}
};
class MCRegAliasIterator : public MCRegisterInfo::DiffListIterator {
public:
MCRegAliasIterator(unsigned Reg, const MCRegisterInfo *MCRI,
- bool IncludeSelf) {
+ bool IncludeSelf = false) {
init(Reg, MCRI->DiffLists + MCRI->get(Reg).Overlaps);
// Initially, the iterator points to Reg itself.
if (!IncludeSelf)