On Tue, May 22, 2012 at 8:04 PM, Jiangning Liu <jiangning....@arm.com> wrote: > Richard, > > But MODES_TIEABLE_P is a macro hook and isn't exposed to TREE level, so I > would have to modify xxx-protos.h for all back-ends.
As far as I can tell it is exposed already to the middle-end via that hook in that you should be able to use MODES_TIEABLE_P from tree-ssa-loop-ivopts.c without modifying anything else. It looks like the arm and i386 are have both broken xxx-protos.h. Both rs6000 and mips will work without touching their xxx-protos.h. I think it is better if you just fix the targets which have a broken xxx-protos.h. Thanks, Andrew Pinski > > An alternative way is I define a new function hook. This way I needn't to > change all back-ends, but support several back-ends required first. > > Which solution is usually preferred? > > Thanks, > -Jiangning > >> >> Richard. >> >> > Thanks, >> > -Jiangning >> > >> >> >> >> Richard. >> >> >> >> >> >> > Zdenek >> > >> > >> > >> > > > > >
