[LLVMdev] RFC: Should we have (something like) -extra-vectorizer-passes in -O2?

[Zinovy Nis]

Seems that adding -extra-vectorizer-passes doesn't help to vectorizer
in my case. LoopRotation re-run does nothing.

2014-10-15 2:54 GMT+04:00 Chandler Carruth <chandlerc at google.com>:
>
> On Tue, Oct 14, 2014 at 3:50 PM, Hal Finkel <hfinkel at anl.gov> wrote:
>>
>> > I have and will continue to push
>> > back on trying to add it until we at least get a sane framework for
>> > our *existing* pass pipelines though.
>>
>> And this makes me even more convinced that we might not all be on the same
>> page ;) -- I really would like you to clarify exactly what this means, and
>> what it has to do with registration of cleanup passes; or to put it another
>> way, why cleanup-pass registration is not part of bringing further sanity to
>> the configuration.
>
>
> I'm starting off assuming a fixed (IE, known up-front) transformation pass
> pipeline. That's all.
>
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