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From: "andrew.cooper3 at citrix dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/102967] New: -Waddress with nested structures: Incorrect "the
 comparison will always evaluate as 'true'"
Date: Wed, 27 Oct 2021 18:14:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102967

            Bug ID: 102967
           Summary: -Waddress with nested structures: Incorrect "the
                    comparison will always evaluate as 'true'"
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: andrew.cooper3 at citrix dot com
  Target Milestone: ---

Hello,

I have been compiling Xen with gcc/master, and found what appears to be a
regression from GCC 11.

https://godbolt.org/z/qa61fs1hK is a simplified repro.

The address comparison seems to be incorrectly applied to only of the two
possible options.  The expression as a whole is most certainly not
unconditionally true.=