[PATCH] D57125: [HotColdSplit] Introduce a cost model to control splitting behavior

[Tim Northover via Phabricator via llvm-commits]

t.p.northover accepted this revision.
t.p.northover added a comment.
This revision is now accepted and ready to land.

I think this looks pretty reasonable. The penalties are a bit speculative (fairly inevitably since the instructions haven't been created yet), but look sane. If they turn out to be problematic in future we could add some hooks to customize them.


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https://reviews.llvm.org/D57125