Andres Freund <andres(at)anarazel(dot)de> writes:
> On 2021-02-23 13:09:18 -0500, Tom Lane wrote:
>> Oddly, I see no such warning with Fedora's current compiler,
>> gcc version 10.2.1 20201125 (Red Hat 10.2.1-9) (GCC)
>> Are you using any special compiler switches?
> A few. At first I didn't see any relevant ones - but I think it's just
> that you need to use -O3 instead of -O2.
Ah-hah, -O3 plus remembering to disable assertions makes it
happen here too. Will fix.
regards, tom lane