[llvm-dev] Usage of splitting heuristic among LLVM register allocators

[Rohit Aggarwal via llvm-dev]

Hi All,

As per understanding, only the Greedy register allocator has the splitting
heuristic which is  implemented using splitkit.cpp. The splitting logic is
only present in splitkit.cpp file of llvm codebase.
Whereas one of the Basic register allocator's comments state that it also
performs splitting but I am not able to find any use of api from
splitkit.cpp for splitting.

Please clarify in which register allocator splitting heuristic is being
used.

Thanks,
Rohit Aggarwal

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