[PATCH GCC8][18/33]Relate compare iv_use with all candidates

Richard Biener richard.guenther@gmail.com
Wed Apr 26 13:16:00 GMT 2017


On Tue, Apr 18, 2017 at 12:46 PM, Bin Cheng <Bin.Cheng@arm.com> wrote:
> Hi,
> For compare type iv_use, we want to relate it with all candidates in order
> to achieve smaller candidate set.  Generally this doesn't hurt compilation
> time because compare iv_use is already related with most candidates and
> the number of compare iv_uses is also small.
> Is it OK?

Ok.

Richard.

> Thanks,
> bin
> 2017-04-11  Bin Cheng  <bin.cheng@arm.com>
>
>         * tree-ssa-loop-ivopts.c (relate_compare_use_with_all_cands): New.
>         (find_iv_candidates): Call relate_compare_use_with_all_cands.



More information about the Gcc-patches mailing list