[Bug target/94145] Longcalls mis-optimize loading the function address

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94145

--- Comment #12 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Alan Modra <amo...@gcc.gnu.org>:

https://gcc.gnu.org/g:0c3519218fb11bdde5356aec9fcac133b4988698

commit r9-8556-g0c3519218fb11bdde5356aec9fcac133b4988698
Author: Alan Modra <amo...@gmail.com>
Date:   Wed Mar 11 21:22:37 2020 +1030

    [RS6000] PR94145, make PLT loads volatile

            PR target/94145
            * config/rs6000/rs6000.c (rs6000_longcall_ref): Use unspec_volatile
            for PLT16_LO.
            * config/rs6000/rs6000.md (UNSPEC_PLT16_LO): Remove.
            (UNSPECV_PLT16_LO): Define.
            (pltseq_plt16_lo_): Use unspec_volatile.

    (cherry picked from commit 19e5389debb03c3623f6a2ce8a8f6f4aa2118901)
    minus the PLT_PCREL parts