+ // No need to clear Queries here, since LiveIntervalUnion::Query doesn't
+ // have anything important to clear and LiveRegMatrix's runOnFunction()
+ // does a std::unique_ptr::reset anyways.
+ }
+}
+
+template<typename Callable>
+bool foreachUnit(const TargetRegisterInfo *TRI, LiveInterval &VRegInterval,
+ unsigned PhysReg, Callable Func) {
+ if (VRegInterval.hasSubRanges()) {
+ for (MCRegUnitMaskIterator Units(PhysReg, TRI); Units.isValid(); ++Units) {
+ unsigned Unit = (*Units).first;
+ LaneBitmask Mask = (*Units).second;
+ for (LiveInterval::SubRange &S : VRegInterval.subranges()) {
+ if (S.LaneMask & Mask) {
+ if (Func(Unit, S))
+ return true;
+ break;
+ }
+ }
+ }
+ } else {
+ for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units) {
+ if (Func(*Units, VRegInterval))
+ return true;
+ }