[llvm-dev] Live range priority in Greedy RA

[jingu kang via llvm-dev]

Hi Dangeti,

As far as I know, 'calculateSpillWeightAndHint' considers loop
induction variable and the spill weight affects evict and spill. If it
is not enough for you, I guess you can add some heuristic code on the
function.

Thanks,
JinGu Kang
2018년 10월 30일 (화) 오전 11:51, Dangeti Tharun kumar via llvm-dev
<llvm-dev at lists.llvm.org>님이 작성:
>
> Hi,
>
> In the Greedy RA, I see that the enqueue method adds higher priority to the live intervals based on their sizes.
>
> Isn't it makes sense to give priority to live intervals that start and end in a loop? Please let me know if the code is already achieving it in some way.
> Also consider correcting me, if this approach is wrong.
>
> --
> Regards,
> DTharun
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