[Bug target/120908] *tls_(local|global)_dynamic_64_ has an implicit RDI clobber

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120908

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-15 branch has been updated by H.J. Lu <h...@gcc.gnu.org>:

https://gcc.gnu.org/g:3f6e48cdb1969dc718d702d045cc4d349f53f239

commit r15-9966-g3f6e48cdb1969dc718d702d045cc4d349f53f239
Author: H.J. Lu <hjl.to...@gmail.com>
Date:   Tue Jul 1 17:17:06 2025 +0800

    x86-64: Add RDI clobber to tls_global_dynamic_64 patterns

    *tls_global_dynamic_64_<mode> uses RDI as the __tls_get_addr argument.
    Add RDI clobber to tls_global_dynamic_64 patterns to show it.

            PR target/120908
            * config/i386/i386.cc (legitimize_tls_address): Pass RDI to
            gen_tls_global_dynamic_64.
            * config/i386/i386.md (*tls_global_dynamic_64_<mode>): Add RDI
            clobber and use it to generate LEA.
            (@tls_global_dynamic_64_<mode>): Add a clobber.

    Signed-off-by: H.J. Lu <hjl.to...@gmail.com>
    (cherry picked from commit 7710d513a552f1fa1b7485ec6b318bafaa6d4cd7)