Also declare t0, t1 in (UN)DIAGONALIZE when not in SSE3 mode.
Also declare t0, t1 in (UN)DIAGONALIZE when not in SSE3 mode.

eggpi/lyra2,guilherme-pg/lyra2,eggpi/lyra2,eggpi/lyra2,guilherme-pg/lyra2,guilherme-pg/lyra2