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From: "roland.illig at gmx dot de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c/104044] New: Useless empty statements (across projects)
Date: Sat, 15 Jan 2022 23:01:59 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104044

            Bug ID: 104044
           Summary: Useless empty statements (across projects)
           Product: gcc
           Version: 12.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: roland.illig at gmx dot de
  Target Milestone: ---

mn10300.c says:
> break;;

nvptx.c says:
> tree r =3D NULL_TREE;;

jit-playback.c says:
> tree x =3D as_tree ();;


These extra semicolons (and all the others in the whole tree) should be
removed, as they don't add any value.  Quite the opposite, they create an
impression that the code were carelessly written.

I'm only concerned about obviously useless semicolons.  In particular, I ha=
ve
no problem with the empty statement in "while (i-- > 0) ;".

Is there a GCC warning for useless empty statements like these?  I saw that
this was already reported as Bug 49053, but maybe your attitude towards this
topic changed in the past 5 years.

I stumbled upon these empty statements as I made the same mistake in my own
code.=