void LiveRegMatrix::releaseMemory() {
for (unsigned i = 0, e = Matrix.size(); i != e; ++i) {
Matrix[i].clear();
- Queries[i].clear();
+ // 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.
}
}
if (VirtReg.empty())
return false;
CoalescerPair CP(VirtReg.reg, PhysReg, *TRI);
- for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units)
- if (VirtReg.overlaps(LIS->getRegUnit(*Units), CP, *LIS->getSlotIndexes()))
+ for (MCRegUnitIterator Units(PhysReg, TRI); Units.isValid(); ++Units) {
+ const LiveRange &UnitRange = LIS->getRegUnit(*Units);
+ if (VirtReg.overlaps(UnitRange, CP, *LIS->getSlotIndexes()))
return true;
+ }
return false;
}