* sysdep/ia64/locks.h: Include ia64intrin.h.

        (compare_and_swap): Use __sync_bool_compare_and_swap.
        (compare_and_swap_release): Expose ar.ccv assignment.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@64737 138bc75d-0d04-0410-961f-82ee72b054a4