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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/104356] [12 Regression] divide by zero trap
 is being removed now when it should not be in some cases
Date: Wed, 02 Feb 2022 23:08:27 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104356

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

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

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
So let's guard the optimization on !flag_non_call_exceptions or so?
The libgcc2.c
          if (d0 =3D=3D 0)
            d0 =3D 1 / d0;        /* Divide intentionally by zero.  */
cases IMHO just should hide it from the optimizers.=