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From: "amonakov at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/110307] ICE in move_insn, at
 haifa-sched.cc:5473 when building Ruby on alpha with -fPIC -O2 (or
 -fpeephole2 -fschedule-insns2)
Date: Sat, 11 Nov 2023 09:01:24 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110307

Alexander Monakov <amonakov at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |uros at gcc dot gnu.org

--- Comment #15 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
It did not bring enlightenment. It looks like INT_MIN REG_EH_REGION annotat=
ing
a call that *does not* perform a non-local goto was a late addition, breaki=
ng
the assumption "EH_REGION notes may appear only on insns that may throw
exceptions", and now a few places in the compiler look as if they may forge=
t to
preserve the special INT_MIN REG_EH_REGION note.

Uros, would you mind reading the discussion in this bug? Do you have
suggestions how to proceed here?=