public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug fortran/31461] warn about entities in USE, ONLY statement not later used
       [not found] <bug-31461-4@http.gcc.gnu.org/bugzilla/>
@ 2011-08-17 13:36 ` burnus at gcc dot gnu.org
  2011-08-17 16:33 ` burnus at gcc dot gnu.org
  2011-08-17 17:00 ` burnus at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu.org @ 2011-08-17 13:36 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31461

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #1 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-08-17 13:27:05 UTC ---
That's simpler than I though. Draft patch:

--- a/gcc/fortran/trans-decl.c
+++ b/gcc/fortran/trans-decl.c
@@ -4453,6 +4453,9 @@ generate_local_decl (gfc_symbol * sym)
                    || sym->attr.in_namelist))
        gfc_warning ("Unused variable '%s' declared at %L", sym->name,
                     &sym->declared_at);
+      else if (warn_unused_variable && sym->attr.use_only)
+       gfc_warning ("Unused module variable '%s' which has been explicitly "
+                    "imported at %L", sym->name, &sym->declared_at);

       /* For variable length CHARACTER parameters, the PARM_DECL already
         references the length variable, so force gfc_get_symbol_decl


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug fortran/31461] warn about entities in USE, ONLY statement not later used
       [not found] <bug-31461-4@http.gcc.gnu.org/bugzilla/>
  2011-08-17 13:36 ` [Bug fortran/31461] warn about entities in USE, ONLY statement not later used burnus at gcc dot gnu.org
@ 2011-08-17 16:33 ` burnus at gcc dot gnu.org
  2011-08-17 17:00 ` burnus at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu.org @ 2011-08-17 16:33 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31461

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-08-17 16:31:20 UTC ---
Author: burnus
Date: Wed Aug 17 16:31:10 2011
New Revision: 177833

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177833
Log:
2011-08-17  Tobias Burnus  <burnus@net-b.de>

        PR fortran/31461
        * trans-decl.c (generate_local_decl): Warn about
        unused explicitly imported module variables/parameters.

2011-08-17  Tobias Burnus  <burnus@net-b.de>

        PR fortran/31461
        * gfortran.dg/warn_unused_var_2.f90: New.
        * gfortran.dg/warn_unused_var_3.f90: New.


Added:
    trunk/gcc/testsuite/gfortran.dg/warn_unused_var_2.f90
    trunk/gcc/testsuite/gfortran.dg/warn_unused_var_3.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-decl.c
    trunk/gcc/testsuite/ChangeLog


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug fortran/31461] warn about entities in USE, ONLY statement not later used
       [not found] <bug-31461-4@http.gcc.gnu.org/bugzilla/>
  2011-08-17 13:36 ` [Bug fortran/31461] warn about entities in USE, ONLY statement not later used burnus at gcc dot gnu.org
  2011-08-17 16:33 ` burnus at gcc dot gnu.org
@ 2011-08-17 17:00 ` burnus at gcc dot gnu.org
  2 siblings, 0 replies; 4+ messages in thread
From: burnus at gcc dot gnu.org @ 2011-08-17 17:00 UTC (permalink / raw)
  To: gcc-bugs

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31461

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED

--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> 2011-08-17 16:32:30 UTC ---
FIXED on the trunk (GCC 4.7).

Thanks for the suggestion - and sorry for taking 4 years to implement it.


^ permalink raw reply	[flat|nested] 4+ messages in thread

* [Bug fortran/31461] warn about entities in USE, ONLY statement not later used
  2007-04-03 16:04 [Bug fortran/31461] New: " vivekrao4 at yahoo dot com
@ 2007-04-18  6:08 ` fxcoudert at gcc dot gnu dot org
  0 siblings, 0 replies; 4+ messages in thread
From: fxcoudert at gcc dot gnu dot org @ 2007-04-18  6:08 UTC (permalink / raw)
  To: gcc-bugs



-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2007-04-18 07:08:30
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31461


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2011-08-17 16:33 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
     [not found] <bug-31461-4@http.gcc.gnu.org/bugzilla/>
2011-08-17 13:36 ` [Bug fortran/31461] warn about entities in USE, ONLY statement not later used burnus at gcc dot gnu.org
2011-08-17 16:33 ` burnus at gcc dot gnu.org
2011-08-17 17:00 ` burnus at gcc dot gnu.org
2007-04-03 16:04 [Bug fortran/31461] New: " vivekrao4 at yahoo dot com
2007-04-18  6:08 ` [Bug fortran/31461] " fxcoudert at gcc dot gnu dot org

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).