[gcc-7-arm] Backport -moutline-atomics flag

[Pop, Sebastian]

Hi Richard,

On 11/11/20, 8:45 AM, "Richard Biener" <richard.guenther@gmail.com> wrote:
> Any update here?  Are those patches in production at Amazon?
> I now see refs/vendors/AWS/heads/Arm64/gcc-7-branch

The patches in the branch 
https://gcc.gnu.org/git/?p=gcc.git;a=shortlog;h=refs/vendors/AWS/heads/Arm64/gcc-7-branch
up to https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=7c216ba945cb92bd79fbe01b35e16bd1e3cd854d
are part of gcc-7 in Amazon Linux 2.
The patches after that commit are staged to be integrated in AL2 by end of the year.

Sebastian