Siddhesh Poyarekar wrote:
> On Thursday 15 February 2018 07:50 PM, Wilco Dijkstra wrote:
>> So it seems to me using existing cost mechanisms is always preferable, even 
>> if you
>> currently can't differentiate between loads and stores.
> Luis is working on address cost adjustments among other things, so I
> guess the path of least resistance for gcc8 is to have those adjustments
> go in and then figure out how much improvement this patch (or separating
> loads and stores) would get on top of that.  Would that be acceptable?

Yes adjusting costs is not an issue as that's clearly something we need to 
anyway. Having numbers for both approaches would be useful, however I think 
it's still
best to go with the cost approach for GCC8 as that should get most of the gain.


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