///
SUnit *NewSUnit(MachineInstr *MI) {
#ifndef NDEBUG
- const SUnit *Addr = &SUnits[0];
+ const SUnit *Addr = SUnits.empty() ? 0 : &SUnits[0];
#endif
SUnits.push_back(SUnit(MI, (unsigned)SUnits.size()));
- assert(Addr == &SUnits[0] && "SUnits std::vector reallocated on the fly!");
+ assert((Addr == 0 || Addr == &SUnits[0]) &&
+ "SUnits std::vector reallocated on the fly!");
SUnits.back().OrigNode = &SUnits.back();
return &SUnits.back();
}