[Bug c/25547] New: 3 * dead data in compiler source code

[Bug c/25547] New: 3 * dead data in compiler source code

[dcb314 at hotmail dot com]

I just tried to compile the gcc-4.2 snapshot 20051217 with the Intel C
compiler. It said

1.

../../src/gcc-4.2-20051217/gcc/builtins.c(1155): remark #593: variable
"apply_args_reg_offset" was
set but never used

The source code is

static int apply_args_reg_offset[FIRST_PSEUDO_REGISTER];

I have read the source code, and I agree with the compiler.
The data is only ever written to. Suggest delete dead data.

2.

../../src/gcc-4.2-20051217/gcc/gcse.c(290): remark #593: variable
"debug_stderr" was set but never
used

The source code is

static FILE *debug_stderr;

I have read the source code, and I agree with the compiler.
The data is only ever written to. Suggest delete dead data.

3.

../../src/gcc-4.2-20051217/gcc/ggc-common.c(68): remark #593: variable
"ggc_stats" was set but never used

The source code is

static ggc_statistics *ggc_stats;

I have read the source code, and I agree with the compiler.
The data is only ever written to. Suggest delete dead data.


-- 
           Summary: 3 * dead data in compiler source code
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: minor
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: dcb314 at hotmail dot com
  GCC host triplet: x86_64-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547

[Bug middle-end/25547] 3 * dead data in compiler source code

[pinskia at gcc dot gnu dot org]

------- Comment #1 from pinskia at gcc dot gnu dot org  2005-12-23 15:19 -------
Confirmed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
          Component|c                           |middle-end
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-12-23 15:19:41
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547

[Bug middle-end/25547] 3 * dead data in compiler source code

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2006-01-29 21:20 -------
I am going to fix these issues tomorrow.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547

[Bug middle-end/25547] 3 * dead data in compiler source code

[pinskia at gcc dot gnu dot org]

------- Comment #3 from pinskia at gcc dot gnu dot org  2006-02-06 14:33 -------
Most of them will be fixed by:
http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00447.html

I still have to decide if we want to remove ggc_stats or not.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547

[Bug middle-end/25547] 3 * dead data in compiler source code

[manu at gcc dot gnu dot org]

------- Comment #4 from manu at gcc dot gnu dot org  2008-01-08 17:30 -------
(In reply to comment #3)
> Most of them will be fixed by:
> http://gcc.gnu.org/ml/gcc-patches/2006-02/msg00447.html
> 
> I still have to decide if we want to remove ggc_stats or not.
> 

As far as I can see this patch was never reviewed or committed.


-- 

manu at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |manu at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547

[Bug middle-end/25547] 3 * dead data in compiler source code

[manu at gcc dot gnu dot org]

------- Comment #5 from manu at gcc dot gnu dot org  2010-05-06 10:46 -------
This should be fixed by the new -Wunused-but-set flags.


-- 

manu at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25547