[Bug target/105162] [AArch64] outline-atomics drops dmb ish barrier on __sync builtins

[spop at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105162

Sebastian Pop <spop at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #52750|0                           |1
        is obsolete|                            |

--- Comment #3 from Sebastian Pop <spop at gcc dot gnu.org> ---
Created attachment 52755
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52755&action=edit
patch

LSE atomics do not need a barrier.

Updated the patch to only generate the barriers after outline-atomics calls.