[Bug ipa/103585] fatigue2 requires inlining of peridida to work well

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103585

--- Comment #8 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Also IRA fails with
! Disqualifying parameter number 0 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 3 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 4 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 5 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 6 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 7 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 8 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 9 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 10 - Would result into a too big set of
replacements.
! Disqualifying parameter number 11 - Would result into a too big set of
replacements.
! Disqualifying parameter number 12 - Would result into a too big set of
replacements.
! Disqualifying parameter number 13 - Would result into a too big set of
replacements.
! Disqualifying parameter number 15 - Would result into a too big set of
replacements.
! Disqualifying parameter number 18 - Would create a possibly illegal
dereference in a caller.
! Disqualifying parameter number 19 - Would create a possibly illegal
dereference in a caller.

I think it is overparanoid about values passed by reference.