[Bug target/120681] PowerPC GCC turns off pc-relative addressing on power10 when -mcmodel=large is used

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120681

--- Comment #4 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Michael Meissner <[email protected]>:

https://gcc.gnu.org/g:40691e7dd66bcf01fe476e6fd946225fd6f97540

commit r17-3141-g40691e7dd66bcf01fe476e6fd946225fd6f97540
Author: Michael Meissner <[email protected]>
Date:   Fri Aug 7 15:17:03 2026 -0400

    PR target/120681 - allow -mcmodel=large with PC relative addressing

    When I implemented the pc-relative support for power10 in GCC, I
    disabled using pc-relative support for -mcmodel=large.  At the time, I
    didn't want to dig into the issues.  It is now time to allow
    -mcmodel=large to generate pc-relative code.

    This patch allows -mcmodel=large to use prefixed addressing on power10,
    power11, and possibly other future PowerPC processors in addition to
    the current -mcmodel=medium support.

    2026-08-07  Michael Meissner  <[email protected]>

    gcc/

            PR target/120681
            * config/rs6000/linux64.h (PCREL_SUPPORTED_BY_OS): Allow large
            code model as well as medium code model.
            * config/rs6000/rs6000.cc (rs6000_option_override_internal):
            Likewise.
            (rs6000_elf_declare_function_name): Don't create the
            local/non-local labels for large code model if we are using
            PC-relative addressing.

    gcc/testsuite/

            PR target/120681
            * gcc.target/powerpc/pr120681.c: New test.