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From: "msebor at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/101494] [11 Regression] -Wmaybe-uninitialized
 false alarm with memrchr of size 0
Date: Wed, 21 Jul 2021 18:09:02 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101494

Martin Sebor <msebor at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
            Summary|-Wmaybe-uninitialized false |[11 Regression]
                   |alarm with memrchr of size  |-Wmaybe-uninitialized false
                   |0                           |alarm with memrchr of size
                   |                            |0
           Assignee|unassigned at gcc dot gnu.org      |msebor at gcc dot g=
nu.org
      Known to fail|                            |11.1.0

--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
It is a regression but only because GCC 10 doesn't check accesses to alloca=
ted
storage to see if it's initialized.=