> On 18 Feb 2025, at 2:27 PM, Kyrylo Tkachov <ktkac...@nvidia.com> wrote:
> 
> 
> 
>> On 18 Feb 2025, at 09:48, Kyrylo Tkachov <ktkac...@nvidia.com> wrote:
>> 
>> 
>> 
>>> On 18 Feb 2025, at 09:41, Richard Sandiford <richard.sandif...@arm.com> 
>>> wrote:
>>> 
>>> Kyrylo Tkachov <ktkac...@nvidia.com> writes:
>>>> Hi Soumya
>>>> 
>>>>> On 18 Feb 2025, at 09:12, Soumya AR <soum...@nvidia.com> wrote:
>>>>> 
>>>>> generic_armv8_a.h defines generic_armv8_a_prefetch_tune but still uses
>>>>> generic_prefetch_tune in generic_armv8_a_tunings.
>>>>> 
>>>>> This patch updates the pointer to generic_armv8_a_prefetch_tune.
>>>>> 
>>>>> This patch was bootstrapped and regtested on aarch64-linux-gnu, no 
>>>>> regression.
>>>>> 
>>>>> Ok for GCC 15 now?
>>>> 
>>>> Yes, this looks like a simple oversight.
>>>> Ok to push to master.
>>> 
>>> I suppose the alternative would be to remove generic_armv8_a_prefetch_tune,
>>> since it's (deliberately) identical to generic_prefetch_tune.
>> 
>> Looks like we have one prefetch_tune structure for each of the generic 
>> tunings (generic, generic_armv8_a, generic_armv9_a).
>> For the sake of symmetry it feels a bit better to have them independently 
>> tunable.
>> But as the effects are the same, it may be better to remove it in the 
>> interest of less code.
>> 
> 
> I see Soumya has already pushed her patch. I’m okay with either approach tbh, 
> but if Richard prefers we can remove generic_armv8_a_prefetch_tune in a 
> separate commit.

Yeah, missed Richard’s mail.

Let me know which is preferable, thanks.

Best,
Soumya

> Thanks,
> Kyrill
> 
> 
>> Thanks,
>> Kyrill
>> 
>>> 
>>>> Thanks,
>>>> Kyrill
>>>> 
>>>>> 
>>>>> Signed-off-by: Soumya AR <soum...@nvidia.com>
>>>>> 
>>>>> gcc/ChangeLog:
>>>>> 
>>>>> * config/aarch64/tuning_models/generic_armv8_a.h: Updated prefetch
>>>>> struct pointer.
>>>>> 
>>>>> ---
>>>>> gcc/config/aarch64/tuning_models/generic_armv8_a.h | 2 +-
>>>>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>>>> 
>>>>> diff --git a/gcc/config/aarch64/tuning_models/generic_armv8_a.h 
>>>>> b/gcc/config/aarch64/tuning_models/generic_armv8_a.h
>>>>> index 35de3f03296..01080cade46 100644
>>>>> --- a/gcc/config/aarch64/tuning_models/generic_armv8_a.h
>>>>> +++ b/gcc/config/aarch64/tuning_models/generic_armv8_a.h
>>>>> @@ -184,7 +184,7 @@ static const struct tune_params 
>>>>> generic_armv8_a_tunings =
>>>>> (AARCH64_EXTRA_TUNE_BASE
>>>>> | AARCH64_EXTRA_TUNE_CSE_SVE_VL_CONSTANTS
>>>>> | AARCH64_EXTRA_TUNE_MATCHED_VECTOR_THROUGHPUT), /* tune_flags. */
>>>>> - &generic_prefetch_tune,
>>>>> + &generic_armv8_a_prefetch_tune,
>>>>> AARCH64_LDP_STP_POLICY_ALWAYS, /* ldp_policy_model. */
>>>>> AARCH64_LDP_STP_POLICY_ALWAYS /* stp_policy_model. */
>>>>> };
>>>>> -- 
>>>>> 2.34.1


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