------- Comment #5 from suckfish at ihug dot co dot nz 2008-10-11 23:02 ------- It looks like nonzero_bits1 in rtlanal.c is going into an exponential recursion.
AFAICS, that function doesn't deal properly with vector arithmetic anyway? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37807
