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From: "Paul Edwards" <mutazilah@gmail.com>
To: <gcc@gcc.gnu.org>
Subject: Re: s390 port
Date: Fri, 1 Oct 2021 07:39:34 +1000
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>> Simply switching off optimization made the negative
>> indexes go away, allowing more than 2 GiB to be
>> addressed in standard z/Arch, with "-m31".

> Prove it on real hardware, not hercules. Hercules doesnt count.

Real mainframe hardware is not easily accessible.
Hercules is the most convenient way people have
of accessing a mainframe. Do you have any reason
to suggest that Hercules doesn't emulate real
hardware in this respect?

BFN. Paul.