[PATCH GCC8][19/33]Rewrite nonlinear iv_use by re-associating invariant and induction parts separately

[Richard Biener]

On Tue, Apr 18, 2017 at 12:47 PM, Bin Cheng <Bin.Cheng@arm.com> wrote:
> Hi,
> This patch rewrites nonlinear iv_use by re-associating invariant part and
> induction part separately so that invariant expressions are exposed to
> later lim pass.
> Is it OK?

Ok.

Thanks,
Richard.

> Thanks,
> bin
> 2017-04-11  Bin Cheng  <bin.cheng@arm.com>
>
>         * tree-ssa-loop-ivopts.c (rewrite_use_nonlinear_expr): Re-associate
>         nonlinear iv_use computation in loop invariant sensitive way.