+ // Remove kills from LocalDefsSet, these registers had short live ranges.
+ for (unsigned i = 0, e = TIB->getNumOperands(); i != e; ++i) {
+ MachineOperand &MO = TIB->getOperand(i);
+ if (!MO.isReg() || !MO.isUse() || !MO.isKill())
+ continue;
+ unsigned Reg = MO.getReg();
+ if (!Reg || !LocalDefsSet.count(Reg))
+ continue;
+ for (const unsigned *OR = TRI->getOverlaps(Reg); *OR; ++OR)
+ LocalDefsSet.erase(*OR);
+ }
+