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, Segher
