[llvm] [MachineFrameInfo] Refactoring with computeMaxcallFrameSize() (NFC) (PR #78001)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> Should I add a TODO in MachineVerifier, or you think this is needed as part of this?

Should be a separate patch 

> The rule would be "if the SP is defined anywhere in the function (or it has an inline-asm with alignstack), adjustsStack should be 'true'?

Yes, something like that 


https://github.com/llvm/llvm-project/pull/78001