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Re: [gsoc] Generic addressing mode selection


On Thu, Mar 26, 2015 at 11:46 PM, Oleg Endo <oleg.endo@t-online.de> wrote:
> On Thu, 2015-03-26 at 09:43 -0600, Jeff Law wrote:
>> If you're looking at exploiting auto-inc addressing, others and myself
>> have speculated that something built around
>> straight-line-strength-reduction at the RTL level would be ideal for
>> exploiting that capability.
>>
>> That may be more suitable for a GSOC project than tackling the entire
>> space of address mode selections.
>
> As far as I understand the proposal, the goal is not to solve all AMS
> problems, but rather to lay the foundation for doing these kinds of
> optimizations and deal with a few assorted ones (most likely auto-mod
> will be a candidate).  Thus, I think Erik's proposal sounds feasible,
> although I'd expect some of the allocations/priorities in the schedule
> to change during the project. But that's not something unusual to
> happen.

That's right, the project's aim is to handle some specific access
patterns and, in the process, build a framework that makes subsequent
optimizations easier to write, not to tackle AMS in its entirety. I'll
reword the proposal a bit to more accurately reflect this.

Best regards,
Erik


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