John Naylor <johncnaylorls(at)gmail(dot)com> writes:
> FWIW, I tried to reproduce with the former new tests un-reverted, and
> didn't see stack overflow on the following, so unless I fat-fingered
> that I wonder if there's something more specific on the previously
> failing members:
> ppc64le / gcc 8.5 / Linux kernel 4.18
> S390X / gcc 13.3 / Linux kernel 6.8
Hm, did you use -O0 ?
regards, tom lane