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From: "hjl.tools at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/104721] New: currently_expanding_gimple_stmt isn't
 cleared properly
Date: Mon, 28 Feb 2022 23:17:21 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104721

            Bug ID: 104721
           Summary: currently_expanding_gimple_stmt isn't cleared properly
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com
  Target Milestone: ---

expand_gimple_basic_block has

      currently_expanding_gimple_stmt =3D stmt;
...
         if (new_bb)
            return new_bb; <<< currently_expanding_gimple_stmt isn't cleare=
d.
...
               if (new_bb)
                {
                  if (can_fallthru)
                    bb =3D new_bb;
                  else
                    return new_bb;  <<< currently_expanding_gimple_stmt isn=
't
cleared.
                }

  currently_expanding_gimple_stmt =3D NULL;=