The current most advance fabs are place in Taiwan ( along the coastline which is nearer to China ) if those fabs are destroyed, there will no longer be newer CPU generation for a decades due to the recipe to make these chips are lost in war. Companies which relies on the advance of semicon will halt but will eventually recover as other players ( Intel, SMIC, Samsung or the parts of what’s left of TSMC ) catches up with progress made in the fabs in Taiwan.