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

[Kyrill Tkachov]

On 06/11/15 11:37, Kyrill Tkachov wrote:
> Ping.
> https://gcc.gnu.org/ml/gcc-patches/2015-10/msg03170.html

My apologies, I meant to ping another patch.
Please disregard that.

Kyrill

>
> 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
>>>
>>
>