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

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

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

--- Comment #21 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-10 branch has been updated by Segher Boessenkool
<seg...@gcc.gnu.org>:

https://gcc.gnu.org/g:14b7e8ace8236bd341a182dc3ef044fe98de5525

commit r10-10144-g14b7e8ace8236bd341a182dc3ef044fe98de5525
Author: Segher Boessenkool <seg...@kernel.crashing.org>
Date:   Wed Sep 8 13:10:30 2021 +0000

    rs6000: Fix ELFv2 r12 use in epilogue

    We cannot use r12 here, it is already in use as the GEP (for sibling
    calls).

    2021-09-08  Segher Boessenkool  <seg...@kernel.crashing.org>
            PR target/102107
            * config/rs6000/rs6000-logue.c (rs6000_emit_epilogue): For ELFv2
use
            r11 instead of r12 for restoring CR.

    (cherry picked from commit 86e6268cff328e27ee6f90e2afc35b6f437a25cd)