On Fri, Sep 25, 2020 at 7:44 PM Steven Lariau <steven.lar...@arm.com> wrote: > > Fix cmpexchange usage of weak / strong. > The generated code is the same on x86 and ARM (there is no weak > cmpexchange), but the old usage was inconsistent. > For push and pop update size, weak is used because cmpexchange is inside > a loop. > For pop update root, strong is used even though cmpexchange is inside a > loop, because there may be a lot of operations to do in a loop iteration > (locate the new head).
Is this patch backport material? Thanks. -- David Marchand
