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> > * This claim is only partially tested, but I'm running the allocator right > now with the base constraints plus an extension which adds coalescing costs > and it's just passed CINT2006 without error. Not bad given that the > coalescing extension only took a couple of hours to write > Following up on this footnote - The PBQPBuilderWithCoalescing builder is now in the

Hi All, I've just committed some changes to the PBQP allocator which are designed to make it easier to implement custom register allocation constraints. This is a quick summary of those changes, and of the status of the PBQP allocator in general. First a quick bit of background: The PBQP allocator is based on ideas described in [1]. I implemented this algorithm (with the improved heuristic