On Mon, Jul 04, 2011 at 05:09:28PM -0700, H.J. Lu wrote: > On Mon, Jul 4, 2011 at 4:54 PM, Alan Modra <amo...@gmail.com> wrote: > > I didn't set out to do anything special with hard regs one way or the > > other, just extended what was already done for paradoxical subregs to > > sign and zero extended subregs. > > Does your change depend on processing zero/sign-extended > hard registers?
At the time I wrote the patch I was more interested in pseudos. I expect that powerpc64 won't be greatly affected if hard regs were excluded from this fwprop optimization, but you need to discuss your patch with maintainers of this code. My opinion as a one-time contributor to fwprop doesn't count for much. -- Alan Modra Australia Development Lab, IBM
