[PATCH] D146057: [CodeGen] Speedup stack slot sharing during stack coloring (interval overlapping test).

[Matthias Braun via Phabricator via llvm-commits]

MatzeB added a comment.

Hmm the main RAGreedy allocator is using the `LiveRegMatrix` and within that the `LiveIntervalUnion` classes to keep things performant. Maybe we can use those here too? In principle they should have even better runtime behavior than merging here...


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https://reviews.llvm.org/D146057