More tests for instcombine/addsub.opt
More tests for instcombine/addsub.opt

chubbymaggie/alive,chubbymaggie/alive,rutgers-apl/alive-loops,davemenendez/alive,chubbymaggie/alive,chubbymaggie/alive,davemenendez/alive,rutgers-apl/alive-loops,nunoplopes/alive,rutgers-apl/alive-loops,nunoplopes/alive,nunoplopes/alive,rutgers-apl/alive-loops,nunoplopes/alive