[PATCH] [RFC, PGO+LTO] Missed function specialization + partial devirtualization

[luoxhu]

On 2019/6/19 20:18, Martin Liška wrote:
> On 6/19/19 10:56 AM, Martin Liška wrote:
>> Thank you very much for the numbers. Today, I'm going to prepare the generalization of single-value counter to track N values.
> 
> Ok, here's a patch candidate that does tracking of most common N values. For your test-case I can see:
> 
> pr69678.gcda:    01a90000:  18:COUNTERS indirect_call 9 counts
> pr69678.gcda:                   0: 350000000 1868707024 175000000 969338501 175000000 0 0 0
> pr69678.gcda:                   8: 0
> 
> So for now, you'll need to generalize get_most_common_single_value to return
> N most common values.
> 
> Eventually we'll need to renamed the counter as it won't be tracking just a single value
> any longer. I can take care of it.
> 
> Can you please verify that the patch candidate works for you?
Thanks, the profile data seems good, I will try it.  I need rebase my patch
to trunk first, as there are many conflicts with your previous patch.


> Thanks,
> Martin
>