On Fri, Sep 14, 2012 at 8:34 PM, Tulio Magno Quites Machado Filho <tul...@linux.vnet.ibm.com> wrote: > Segher Boessenkool <seg...@kernel.crashing.org> writes:
> I don't understand the problem. There is no problem. Segher is concerned that -mcpu=powerpc64, which is suppose to generate "generic" PPC64 code produces mftb instead of mfspr. However, there is no right answer and it is unclear if it is better for -mcpu=powerpc64 to support the most processors now or only forward compatibility for the future. for the moment, working on all PPC64 systems seems like the better option. we can revisit this in the future when POWER3 is even father in the past. - david
