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From: "janus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/54224] [4.8 Regression] Bogus -Wunused-function warning with static function
Date: Sat, 15 Sep 2012 18:26:00 -0000	[thread overview]
Message-ID: <bug-54224-4-HYvaPxgmp9@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-54224-4@http.gcc.gnu.org/bugzilla/>

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54224

--- Comment #10 from janus at gcc dot gnu.org 2012-09-15 18:26:27 UTC ---
(In reply to comment #8)
> > Here is a patch which should set TREE_USED for all procedure calls:
> 
> Does it still allow to optimize unused PRIVATE module procedures away?

I think so. conv_function_val is only called by gfc_conv_procedure_call. If the
procedure is really not used, then gfc_conv_procedure_call will not be called,
and thus also TREE_USED will not be set.

Moreover, the patchlet in comment 7 seems to be free of testsuite regressions.


  parent reply	other threads:[~2012-09-15 18:26 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-10 15:44 [Bug middle-end/54224] New: " burnus at gcc dot gnu.org
2012-08-11  9:03 ` [Bug middle-end/54224] " burnus at gcc dot gnu.org
2012-08-15 12:39 ` burnus at gcc dot gnu.org
2012-08-15 13:04 ` burnus at gcc dot gnu.org
2012-08-15 18:30 ` [Bug middle-end/54224] [4.8 Regression] " janus at gcc dot gnu.org
2012-08-16  9:57 ` burnus at gcc dot gnu.org
2012-08-16 11:07 ` rguenth at gcc dot gnu.org
2012-08-21  8:49 ` burnus at gcc dot gnu.org
2012-09-15 17:42 ` [Bug fortran/54224] " janus at gcc dot gnu.org
2012-09-15 17:48 ` burnus at gcc dot gnu.org
2012-09-15 18:26 ` janus at gcc dot gnu.org [this message]
2012-09-19 14:25 ` rguenth at gcc dot gnu.org
2012-10-19 17:15 ` janus at gcc dot gnu.org
2012-10-19 17:23 ` janus at gcc dot gnu.org
2012-10-19 17:49 ` janus at gcc dot gnu.org
2012-10-19 17:54 ` [Bug fortran/54224] Warn for unused (private) module variables and internal procedures janus at gcc dot gnu.org
2012-10-20 21:18 ` janus at gcc dot gnu.org
2013-03-22 14:45 ` jakub at gcc dot gnu.org
2013-05-31 10:59 ` jakub at gcc dot gnu.org
2013-08-19 21:18 ` janus at gcc dot gnu.org
2013-08-19 21:22 ` [Bug fortran/54224] Warn for unused " janus at gcc dot gnu.org
2013-10-16  9:51 ` jakub at gcc dot gnu.org
2015-06-22 14:26 ` rguenth at gcc dot gnu.org
2015-09-13 13:45 ` dominiq at lps dot ens.fr
2015-09-13 15:04 ` manu at gcc dot gnu.org
2015-09-13 15:24 ` dominiq at lps dot ens.fr
2015-09-13 15:52 ` manu at gcc dot gnu.org

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