[llvm-dev] [RFC] Machine Function Splitter - Split out cold blocks from machine functions using profile data

[aditya kumar via llvm-dev]

> Just chiming in about the outliner stuff. (In general, I think it's
desirable to have multiple options for how early/late a pass runs.)

I'm wondering if MachineOutliner can be augmented to add
MachineFunctionSplitter functionalities as well. If the analysis part of
MachineOutliner can allow single basic block outlining with some cost
models.

Aditya Kumar
Compiler Engineer
https://bitsimplify.com
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