[Bug ipa/97445] Some fonctions marked static inline in Linux kernel are not inlined

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97445

--- Comment #51 from Martin Liška <marxin at gcc dot gnu.org> ---
> Martin, how does the if chain conversion behave on the example?

I don't see how can if-to-switch conversion pass help us here. It's designed to
identify compact intervals. In this case we see:

  <bb 12> :
  _16 = _2 & 576460752303423488;
  if (_16 == 0)
    goto <bb 13>; [INV]
  else
    goto <bb 72>; [INV]

  <bb 13> :
  _18 = _2 & 288230376151711744;
  if (_18 == 0)
    goto <bb 14>; [INV]
  else
    goto <bb 72>; [INV]
...

So it's a series of masking. Do you see Honza how to convert it?