Paolo Bonzini <bonz...@gnu.org> writes: > On 07/05/2011 01:54 AM, Alan Modra wrote: >> > Before that, fwprop never tries to work on hard registers. >> >> I question this claim. It seems to me that fwprop did look at >> paradoxical subregs of hard regs before my change. > > That wasn't part of the design anyway. The main purpose of fwprop's > paradoxical subreg propagation is to get rid of back-to-back > SI-to-QI-to-SI conversions, and working with pseudos is enough.
OK, in that case H.J., please go ahead. > The patch is okay as far as I'm concerned, but I'm not a maintainer of > fwprop. You probably should be :-) Richard
