[llvm-dev] OptBisect implementation for new pass manager

[Philip Pfaffe via llvm-dev]

Well, I think we don't have a clear idea about new-PM codegen should work
in general. Is this really something that concerns us right now?

Philip

On Wed, Sep 26, 2018 at 7:54 PM Friedman, Eli <efriedma at codeaurora.org>
wrote:

> On 9/26/2018 10:47 AM, Philip Pfaffe via llvm-dev wrote:
> > Hi Fedor,
> >
> > can you make an example where a pass actually needs to opt-out?
> > Because IMO, bisect should quite literally to DebugCounter-style skip
> > every step in every ::run method's loop. Passes should not even be
> > concerned with this.
>
> This isn't so much an issue for the optimization pipeline, but code
> generation involves some passes which are mandatory (e.g. isel).
>
> -Eli
>
> --
> Employee of Qualcomm Innovation Center, Inc.
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux
> Foundation Collaborative Project
>
>
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