[llvm-dev] Signed Div SCEVs

Sanjoy Das via llvm-dev llvm-dev at lists.llvm.org
Sat Mar 23 11:30:22 PDT 2019


The short answer is that introducing new operations to SCEV has a high
cost, and we have not seen use cases that justify paying that cost.

Have you run into situations where an sdiv operation would help?

-- Sanjoy

On Thu, Mar 21, 2019 at 6:01 AM Dangeti Tharun kumar via llvm-dev
<llvm-dev at lists.llvm.org> wrote:
>
> Hi,
>
> I am working with SCEVs, I see the unsigned division of SCEVs, it is not immediately clear to me why the signed division of SCEV expressions is not supported by SE?
>
> I would appreciate if some could clarify or point me to some links.
>
> --
> Regards,
> DTharun
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