Hi, Vlad Why does rs6000_emit_move need special support for SDmode with LRA and not with reload? In other words, why is this a specific fix for rs6000 instead of a general improvement for reload?
SDmode has some bizarre restrictions on PPC, but one of the historical advantages of GCC was reload's ability to support strange addressing modes of processors. Why fix this in a target-specific way and then possibly replicated this in other architectures instead of fixing it more generally? Thanks, David On Thu, Aug 7, 2014 at 5:11 PM, Vladimir Makarov <vmaka...@redhat.com> wrote: > Hi, Mike. > > Here is the patch which solves LRA SDmode problem which we discussed on > IRC on Friday. > > The patch was successfully tested and bootstrapped on ppc64 with -mlra > switched on. > > David, is it ok to commit it to the trunk? > > 2014-08-07 Vladimir Makarov <vmaka...@redhat.com> > > * config/rs6000/rs6000.c (rs6000_emit_move): Use SDmode to > load/store from/to non-floating class pseudo. >
