[Bug target/102107] protocol register (r12) corrupted before a tail call

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102107

--- Comment #16 from Segher Boessenkool <segher at gcc dot gnu.org> ---
(Hopefully) fixed on trunk, but it needs backports.