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Groups > muc.lists.netbsd.tech.toolchain > #3601

Re: netbsd-11 gcc bug

From Mouse <mouse@Rodents-Montreal.ORG>
Newsgroups muc.lists.netbsd.tech.toolchain
Subject Re: netbsd-11 gcc bug
Date 2026-05-23 19:11 -0400
Organization Newsgate at muc.de e.V.
Message-ID <202605232311.TAA18437@Stone.Rodents-Montreal.ORG> (permalink)
References <9186.1779564551@jacaranda.noi.kre.to> <>

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> One of the many stupidities inflicted upon the C language by the
> compiler people who want to be able to use every trick they can to be
> able to generate faster code.

About all it means is that compilers that insist on doing that (ie,
lacking an option to turn off such over-aggressive inferences) are
broken, not suitable for use cases other than generating impressive
benchmark stats.  Compilers exist to be useful, after all, and this is
a significant impairment to its usefulness.

I'd say this should be filed as a bug with the gcc people; if they
can't/won't fix it, NetBSD should roll back to a previous gcc and/or
drop gcc as the system compiler, as then it'd be clearly unsuitable.

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Thread

netbsd-11 gcc bug Manuel Bouyer <bouyer@antioche.eu.org> - 2026-05-23 10:59 +0200
  Re: netbsd-11 gcc bug Manuel Bouyer <bouyer@antioche.eu.org> - 2026-05-23 12:55 +0200
    Re: netbsd-11 gcc bug Manuel Bouyer <bouyer@antioche.eu.org> - 2026-05-23 20:45 +0200
  Re: netbsd-11 gcc bug Valery Ushakov <uwe@stderr.spb.ru> - 2026-05-23 14:22 +0300
    Re: netbsd-11 gcc bug Manuel Bouyer <bouyer@antioche.eu.org> - 2026-05-23 13:28 +0200
  Re: netbsd-11 gcc bug Roland Illig <roland.illig@gmx.de> - 2026-05-23 20:38 +0200
    Re: netbsd-11 gcc bug Manuel Bouyer <bouyer@antioche.eu.org> - 2026-05-23 20:47 +0200
      Re: netbsd-11 gcc bug Robert Elz <kre@munnari.OZ.AU> - 2026-05-24 02:29 +0700
        Re: netbsd-11 gcc bug Mouse <mouse@Rodents-Montreal.ORG> - 2026-05-23 19:11 -0400
          Re: netbsd-11 gcc bug Martin Husemann <martin@duskware.de> - 2026-05-24 10:44 +0200
            Re: netbsd-11 gcc bug Mouse <mouse@Rodents-Montreal.ORG> - 2026-05-24 08:33 -0400
              Re: netbsd-11 gcc bug Jason Thorpe <thorpej@me.com> - 2026-05-24 11:38 -0400
                Re: netbsd-11 gcc bug "Greg A. Woods" <woods@planix.ca> - 2026-05-24 16:53 -0700
              Re: netbsd-11 gcc bug David Holland <dholland-tech@netbsd.org> - 2026-05-25 00:02 +0000
                Re: netbsd-11 gcc bug Mouse <mouse@Rodents-Montreal.ORG> - 2026-05-25 08:23 -0400
                C compiler (over-)optimization (was: netbsd-11 gcc bug) Edgar Fuß <ef@math.uni-bonn.de> - 2026-05-29 19:12 +0200
                Re: C compiler (over-)optimization (was: netbsd-11 gcc bug) Mouse <mouse@Rodents-Montreal.ORG> - 2026-05-29 14:21 -0400
                Re: C compiler (over-)optimization (was: netbsd-11 gcc bug) "Greg A. Woods" <woods@planix.ca> - 2026-05-29 14:27 -0700
                Re: C compiler (over-)optimization Anders Magnusson <ragge@tethuvudet.se> - 2026-05-30 12:30 +0200
                Re: C compiler (over-)optimization (was: netbsd-11 gcc bug) Andrew Cagney <andrew.cagney@gmail.com> - 2026-05-31 13:02 -0400
                Re: C compiler (over-)optimization (was: netbsd-11 gcc bug) Jason Thorpe <thorpej@me.com> - 2026-05-31 14:29 -0500
                Re: netbsd-11 gcc bug "Greg A. Woods" <woods@planix.ca> - 2026-05-28 14:40 -0700
                Re: netbsd-11 gcc bug Mouse <mouse@Rodents-Montreal.ORG> - 2026-05-28 18:36 -0400
                Re: netbsd-11 gcc bug Jason Thorpe <thorpej@me.com> - 2026-05-28 19:04 -0400
                Re: netbsd-11 gcc bug "Greg A. Woods" <woods@planix.ca> - 2026-05-29 14:31 -0700
      Re: netbsd-11 gcc bug Jörg Sonnenberger <joerg@bec.de> - 2026-05-26 13:52 +0200
        Re: netbsd-11 gcc bug Jason Thorpe <thorpej@me.com> - 2026-05-26 10:02 -0400

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