[PATCH] Templatify RegionInfo

[Tobias Grosser]

On 09/07/2014 06:35, Matt Arsenault wrote:
>
> On Jul 8, 2014, at 4:06 PM, Tobias Grosser <tobias at grosser.es> wrote:
>
>> On 08/07/2014 21:37, Chandler Carruth wrote:
>>> So, I'm really fine with experiments going on in tree here, I just wanted
>>> to know what the plan was (which Matt's email pretty much clarified) and
>>> make sure that there wasn't going to be increased confusion (which a
>>> comment such as Tobias mentions would do).
>>>
>>> I don't think any of what has been discussed merits things being
>>> out-of-tree.
>>
>> OK.
>>
>> Matt, I just tried your patches they look rather mechanical so I have little concerns. However, when testing I saw that they did break the Polly build in several ways. Is this expected? You don't happen to have a patch for Polly available, no?
>>
>> Cheers,
>> Tobias
>
> Here is the patch to fix the polly build. Most of the problems were
> from missing includes that RegionInfo.h used to include, and renaming
> of the pass to RegionInfoPass.

I wonder if this renaming is necessary. Looking at DominanceFrontier
some kind of proxy pattern has been used to make the original functions
available in the DF pass.

> There’s another unfortunate
> reinterpret_cast since Region is no longer simply a subclass of
> RegionNode (if there’s a better solution to this that would be nice)

Does just typedef-ing RegionNode to
RegionNodeBase<RegionTraits<Function>> not work? Alternatively, maybe
some automatically converting constructors (not fully sure how to write
them)?

Cheers,
Tobias