[LLVMdev] allocation_order_begin takes non-const reference for MachineFunction

[Anton Vayvod]

Hi!

Could someone tell me the reason why allocation_order_begin method of
TargetRegisterClass class takes a non-const reference to MachineFunction? I
can't imagine why this method will change function and didn't find any
override within llvm source which uses non-const methods of the MF
parameter.

Just run into compiler error because I passed a const reference to the
method.

Best regards,

Tony.
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