Re: [eigen] Performance colwise matrix mult vs. raw loop

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On 2018-01-17 23:26, Gael Guennebaud wrote:
> On Tue, Jan 16, 2018 at 9:40 PM, Norbert Wenzel <
> norbert.wenzel.lists@xxxxxxxxx> wrote:
>> I understand you cannot determine any aliasing issues at compile time.
>> But I fail to see why there is no way to determine the size of the
>> temporary. Do you mean this cannot be done in Eigen as it is now or this
>> can generally not be determined at compile time?
> This is very difficult because aliasing might appear in very different
> ways, e.g.: [...]

Thanks for taking time to explain this to me. This was very enlightening.


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