On Tue, Nov 26, 2019 at 2:30 PM Richard Sandiford <richard.sandif...@arm.com> wrote: > > Andrew Pinski <pins...@gmail.com> writes: > > On Fri, Aug 18, 2017 at 12:17 PM Andrew Pinski <pins...@gmail.com> wrote: > >> > >> Like https://gcc.gnu.org/ml/gcc-patches/2010-09/msg00060.html for > >> PowerPC, we should do something similar for aarch64. This pattern > >> does show up in SPEC CPU 2006 in astar but I did not look into > >> performance improvement of it though. > >> > >> OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions. > > > > Ping? I has been over 2 years now too. > > I think it'd better to do this in match.pd, folding to IFN_TRUNC. > The rule will then automatically check whether the target supports > IFN_TRUNC/btrunc_optab for the required mode.
Yes I agree, it should be done generically. I will look into doing that for stage 1. Thanks, Andrew > > Thanks, > Richard
