{HEAD ~ Existing exception pipeline flushing mechanisms} may be utilized, by adding a mispredicted branch identifier, reducing {TAIL ~ the complexity and hardware cost} of flushing the lower pipelines 
utilized by reducing
{ HEAD ~ Existing exception pipeline flushing mechanisms } may be utilized , by adding a mispredicted branch identifier , reducing { TAIL ~ the complexity and hardware cost } of flushing the lower pipelines
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH REL OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH