[PATCH/AARCH64] Have the verbose cost model output output be controllable

[Andrew Pinski]

On Fri, Sep 23, 2016 at 10:46 PM, Andrew Pinski <pinskia@gmail.com> wrote:
> Hi,
>   As reported in PR 61367, the aarch64 back-end is too verbose when it
> is dealing with the cost model.  I tend to agree, no other back-end is
> this verbose.  So I decided to add an option to enable this verbose
> output if requested.
>
> I did NOT document it in invoke.texi because I don't feel like this is
> an option which an user should use.  But I can add it if requested.
>
> OK?  Bootstrapped and tested on aarch64-linux-gnu with no regressions.

Ping?

>
> Thanks,
> Andrew Pinski
>
> ChangeLog:
> * config/aarch64/aarch64.opt (mverbose-cost-dump): New option.
> * config/aarch64/aarch64.c (aarch64_rtx_costs): Use
> flag_aarch64_verbose_cost instead of checking for details dump.
> (aarch64_rtx_costs_wrapper): Likewise.