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From: "baiwfg2 at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/110399] pointer substraction causes coredump with
 ftrapv on edge case
Date: Thu, 29 Jun 2023 09:33:37 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110399

--- Comment #3 from Chan Lewis <baiwfg2 at gmail dot com> ---
(In reply to Andrew Pinski from comment #2)
> Dup of bug 13421.
>=20
> *** This bug has been marked as a duplicate of bug 13421 ***

I see. I wonder why gcc consider pointer signed and need to abort in this c=
ase,
whereas clang still works as expected. If we change pointer to unsigned in =
our
codebase, that will be lots of work.=