[Bug target/92692] Saving off the callee saved register between ldxr/stxr (caused by shrink wrapping improvements)

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92692

--- Comment #24 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Kyrylo Tkachov
<ktkac...@gcc.gnu.org>:

https://gcc.gnu.org/g:ea376dd471a3b006bc48945c1d9a29408ab17a04

commit r9-8434-gea376dd471a3b006bc48945c1d9a29408ab17a04
Author: Kyrylo Tkachov <kyrylo.tkac...@arm.com>
Date:   Wed Apr 1 12:09:09 2020 +0100

    [AArch64] Fix shrinkwrapping interactions with atomics (PR92692)

    2020-04-01  Kyrylo Tkachov  <kyrylo.tkac...@arm.com>

            Backport from mainline
            2020-01-17  Wilco Dijkstra  <wdijk...@arm.com>

            PR target/92692
            * config/aarch64/atomics.md (aarch64_compare_and_swap<mode>)
            Use epilogue_completed rather than reload_completed.