------- Comment #8 from jv244 at cam dot ac dot uk 2010-05-22 14:09 ------- (In reply to comment #7) > 4.5.1, using '-O2 -funswitch-loops' obviously '-O2 -funswitch-loops -fbounds-check' -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43866