IRE_GENERATION_CONDEMNED
boolean_t condemned = irep->ire_generation == IRE_GENERATION_CONDEMNED;
((ire)->ire_generation == IRE_GENERATION_CONDEMNED)
ire->ire_generation = IRE_GENERATION_CONDEMNED;
if (generation == IRE_GENERATION_CONDEMNED)
ASSERT(ire->ire_generation != IRE_GENERATION_CONDEMNED);
ASSERT(ire->ire_generation != IRE_GENERATION_CONDEMNED);
ASSERT(ire == NULL || ire->ire_generation != IRE_GENERATION_CONDEMNED);