[llvm] r295378 - [LSR] Prevent formula with SCEVAddRecExpr type of Reg from Sibling loops

[Wei Mi via llvm-commits]

On Fri, Feb 24, 2017 at 9:44 AM, Rafael Avila de Espindola <
rafael.espindola at gmail.com> wrote:

> Wei Mi via llvm-commits <llvm-commits at lists.llvm.org> writes:
> > Filed a bug here: https://bugs.llvm.org/show_bug.cgi?id=32043
> > I will take a deeper look into it.
>
> I uploaded an somewhat reduced testcase there. Do you have an idea of
> when you would be able to debug it? If not, could you revert it for now?
>
> Thanks,
> Rafael
>

It is unhelpful to revert it because rL294814 just hided the problem and
rL295378 exposed the problem again.
rL295378 is a bug fix to rL294814 fixing another problem also causing
unstopped compilation. If rL295378 is reverted, rL294814 has to be reverted
together and the bug will be still exposed.

Thanks for your reduced testcase. I will start debugging it today.

Thanks,
Wei.
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