Re: [PATCH][ARM] Fix checking RTL error in cortex_a9_sched_adjust_cost

[Kyrill Tkachov <kyrylo dot tkachov at arm dot com>]

Ping.
https://gcc.gnu.org/ml/gcc-patches/2015-10/msg03170.html

Thanks,
Kyrill
On 30/10/15 15:47, Kyrill Tkachov wrote:
> On 30/10/15 14:37, Ramana Radhakrishnan wrote:
> > On 29/10/15 16:02, Kyrill Tkachov wrote:
> > > Hi all,
> > >
> > > An arm-none-eabi build with RTL checking and --with-cpu=cortex-a9 fails because
> > > cortex_a9_sched_adjust_cost tries to access the SET_DEST of a PARALLEL.
> > > The correct thing to do is to call single_set on dep, which will return a simple SET
> > > that we can take the SET_DEST of or NULL if there's more than one SET.
> > >
> > > This patch does that.
> > > The arm-none-eabi build passes.
> > > Bootstrapped and tested on arm-none-linux-gnueabihf.
> > >
> > > Ok for trunk?
> > >
> > > Thanks,
> > > Kyrill
> > >
> > > 2015-10-29  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
> > >
> > >      * config/arm/arm.c (cortex_a9_sched_adjust_cost): Use reg_set_p to
> > >      check for dependencies.
> > Ok - but I think we also need a patch to improve the comment for reg_set_p, probably because it started life as internal function but now has wider visibility.
>
> Thanks,
>
> Here's a patch for the reg_set_p comment.
> Committing as obvious.
>
> Kyrill
>
> > Thanks,
> > Ramana