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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/113301] [12/13/14 Regression] Missed
 optimization: (1/(x+1))/2 => 0 since gcc-12
Date: Wed, 10 Jan 2024 22:25:17 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113301

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|unassigned at gcc dot gnu.org      |pinskia at gcc dot =
gnu.org
             Status|NEW                         |ASSIGNED
           See Also|                            |https://gcc.gnu.org/bugzill
                   |                            |a/show_bug.cgi?id=3D103257

--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I have a patch which disables the "simplification" of "1/x" for signed until
late which solves this missed optimization. I will post it once it finishes
testing.

Note we already delayed the simplification of `bool * d` to `bool?A:0` until
late for similar reasons, see PR 103257 on that.=