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Re:Decades-Old Computer Science Conjecture Solved in Two Pages by pradn on Friday July 26, 2019 @12:30PM (#20536001)
I believe graph-coloring is no longer used for state-of-the-art register allocators, such as the one in LLVM.

Apparently, for ISA with a small number of registers, graph-coloring is not as relevant because spillover is more important.

https://lists.llvm.org/pipermail/llvm-dev/2017-December/1199...

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