void RegScavenger::setUsed(unsigned Reg) {
RegsAvailable.reset(Reg);
- for (const uint16_t *SubRegs = TRI->getSubRegisters(Reg);
- unsigned SubReg = *SubRegs; ++SubRegs)
- RegsAvailable.reset(SubReg);
+ for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ RegsAvailable.reset(*SubRegs);
}
bool RegScavenger::isAliasUsed(unsigned Reg) const {
void RegScavenger::addRegWithSubRegs(BitVector &BV, unsigned Reg) {
BV.set(Reg);
- for (const uint16_t *R = TRI->getSubRegisters(Reg); *R; R++)
- BV.set(*R);
+ for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ BV.set(*SubRegs);
}
void RegScavenger::forward() {
// Ideally we would like a way to model this, but leaving the
// insert_subreg around causes both correctness and performance issues.
bool SubUsed = false;
- for (const uint16_t *SubRegs = TRI->getSubRegisters(Reg);
- unsigned SubReg = *SubRegs; ++SubRegs)
- if (isUsed(SubReg)) {
+ for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+ if (isUsed(*SubRegs)) {
SubUsed = true;
break;
}