[llvm-commits] [PATCH] Add SeSeRegionInfo transform pass

[Andreas Simbuerger]

Hi,

this patch adds a small transform pass that converts a refined region
into a simple region by adding the required edges at the region entry /
exit.

Basically it should update the RegionInfo analysis correctly, but
sometimes it fails to do so.
This requires some work on the RegionInfo::splitBlock methods.
I'll try to figure it out and send a patch for that at a later time.

Test cases will follow in a separate patch.

Cheers,
Andreas
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