[LLVMdev] Heads up: Pass Manager changes will be starting shortly

Sean Silva silvas at purdue.edu
Sun Sep 15 17:08:46 PDT 2013

On Sat, Sep 14, 2013 at 7:05 PM, Chandler Carruth <chandlerc at google.com>wrote:

> On Sat, Sep 14, 2013 at 3:57 PM, Reed Kotler <rkotler at mips.com> wrote:
>> Hi Chandler,
>> What changes are you planning to make?
>> Are you going to submit a proposal and RFC?
> There have been several RFCs...
> What's your specific question?
> I'm planning to essentially try to build a new pass management layer that
> doesn't suffer from the problems the existing one does. I could describe
> every interface I plan in prose and email it out, but I'm not sure that's
> really the most effective way to do it. My plan has been to work on
> implementing the new system in-tree, and let folks code review it and pick
> it apart as usual. When folks are happy with it, and it works, then we can
> look at switching over.

I think it would be nice just to centralize the results of all discussions
thus far in a google doc or whatever.

I don't recall ever seeing in one place a listing of the primary issues
that the rewrite is meant to address. I've definitely seen various
discussions here and there from time to time, but nothing that a person
could look at and get a big picture view of what's happening and why.

-- Sean Silva
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