[Bug middle-end/59849] New: GCC doesn't warn unused global const variable

[Bug middle-end/59849] New: GCC doesn't warn unused global const variable

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59849

            Bug ID: 59849
           Summary: GCC doesn't warn unused global const variable
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: hjl.tools at gmail dot com

[hjl@gnu-mic-2 gcc]$ cat /tmp/w.c
static const int foo;
static int bar;
[hjl@gnu-mic-2 gcc]$ ./xgcc -B./ -Wall -c /tmp/w.c
/tmp/w.c:2:12: warning: ‘bar’ defined but not used [-Wunused-variable]
 static int bar;
            ^
[hjl@gnu-mic-2 gcc]$ 

GCC should also warn unused foo.
>From gcc-bugs-return-440644-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Thu Jan 16 23:49:52 2014
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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/59849] GCC doesn't warn unused global const variable
Date: Thu, 16 Jan 2014 23:49:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY849

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This was done on purpose as static constants are normally in the header files.

[Bug middle-end/59849] GCC doesn't warn unused global const variable

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59849

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |DUPLICATE

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 28901.

*** This bug has been marked as a duplicate of bug 28901 ***