On Sep 1, 2016, at 9:32 AM, Segher Boessenkool <seg...@kernel.crashing.org> wrote: > > On Wed, Aug 31, 2016 at 09:15:32PM -0500, Bill Schmidt wrote: >> This patch (suggested by Michael Meissner) instead prevents the problem >> by disallowing reg+reg addressing for TImode, allowing D-form addressing >> to be used for the separate stores of the GPRs. This is not an ideal >> permanent solution, because it disallows reg+reg addressing not only for >> TImode in GPRs, but also for TImode in VSRs. Our intent is to work on a >> solution to provide a scratch register via secondary reload, but this >> may take some time. Thus I'd like to submit this patch as a short-term >> solution for the bootstrap problem until then. >> >> I plan to do a performance evaluation of this patch for informational >> purposes, but I don't expect much change, and the results won't affect >> our choice to handle this properly in secondary reload. >> >> Bootstrapped and tested on powerpc64le-unknown-linux-gnu with no >> regressions, and the gnattools now build properly so that the ada >> bootstrap succeeds. Is this ok for trunk? > > Yes please. Thanks,
r239938, thanks! Bill > > > Segher >
