it might have been obvious to you that the problem you initially stated (partitioning for min register usage) was in fact a scheduling problem but it sure wasn't for me until I worked that through!
I believe if your program is in SSA, then you can just assign registers first come first serve and it ends up optimal. Could be wrong.
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yes, but i don't have a *schedule*. that's the problem.
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i know i can schedule first come first serve, and that works, but i'll get a dramatically inflated number because the code isn't scheduled yet.
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See https://github.com/Cretonne/cretonne/blob/master/docs/regalloc.rst … for details—this is how Cretonne does it.
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