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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/110891] [14 Regression] Dead Code Elimination
 Regression since r14-2674-gd0de3bf9175
Date: Thu, 03 Aug 2023 16:13:28 +0000
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X-Bugzilla-Component: tree-optimization
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X-Bugzilla-Keywords: missed-optimization
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D110891

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-08-03
             Status|UNCONFIRMED                 |NEW

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
The first major IR difference between GCC 13 and trunk happens in DOM2 wher=
e 13
would thread some jumps:
_10  : [irange] int [0, 5] NONZERO 0x5
  Threaded jump 6 --> 7 to 10
  Threaded jump 5 --> 7 to 10

While the trunk does not.=