Re: [HACKERS] Fix performance of generic atomics - Mailing list pgsql-hackers

I wrote:
> Ah.  I was not thinking of touching pg_atomic_read_u32/u64_impl,
> although now that you mention it, it's not clear to me why we
> couldn't simplify

> -    return *(&ptr->value);
> +    return ptr->value;

Just to check, I applied that change to pg_atomic_read_u32_impl and
pg_atomic_read_u64_impl, and recompiled.  I get bit-for-bit the
same backend executable.  Maybe it would have an effect on some
other compiler, but I doubt it, except perhaps at -O0.
        regards, tom lane