On Wed, Nov 3, 2021 at 1:34 AM Thomas Munro wrote:
> Andres mentioned in passing that he'd defined
> PG_HAVE_8BYTE_SINGLE_COPY_ATOMICITY only on Itanium, PPC and x86 but
> not ARM.
>
> I took a look at https://developer.arm.com/documentation/ddi0487/gb/
> under "B2.2.1 Requirements for single-copy
urn this on for __aarch64__. It goes back to the
original ARMv8-A so should cover all 64 bit ARM systems.
From 1721c7b15b132c2aa16b18cf0b3eea054247833d Mon Sep 17 00:00:00 2001
From: Thomas Munro
Date: Wed, 3 Nov 2021 10:23:33 +1300
Subject: [PATCH] AArch64 has single-copy 64 bit atomicity.
Th
