- /// isUsed - Test if a register is currently being used. When called by the
- /// isAliasUsed function, we only check isReserved if this is the original
- /// register, not an alias register.
- ///
- bool isUsed(unsigned Reg, bool CheckReserved = true) const {
- return !RegsAvailable.test(Reg) || (CheckReserved && isReserved(Reg));
- }
-
- /// isAliasUsed - Is Reg or an alias currently in use?
- bool isAliasUsed(unsigned Reg) const;
-
- /// setUsed / setUnused - Mark the state of one or a number of registers.