[LLVMdev] SelectionDAG viewers, filter-view-dags question

[Ryan Taylor]

Is this option currently mandatory? If so, why? If not, I'm not sure what's
been added that I need to do differently.

-view-isel-dags opened just fine in dotty in 3.4 and now this does nothing
without the filter-view-dags 'option' and now has a different priority
program list or something.

I'm just curious why this option should be mandatory?

Thanks.
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