[Bug debug/14328] New: gcc3.2.2 generates incorrect debugging enum values

[Bug debug/14328] New: gcc3.2.2 generates incorrect debugging enum values

[tjruwase at stanfordalumni dot org]

gcc3.2.2 generates negative values [-128 ... -1] as debugging symbols for enum
entries which have values in the range [128 ... 255]. Therefore attempts to 
view such entries under gdb returns bogus values. The following source file and 
gdb session demonstrate this problem. gcc-2.9.6 doesnt exhibit this behavour.


/* enum_err.c */
#include <stdio.h>
#include <stdlib.h>

typedef enum {
  ENTRY_126 = 126,ENTRY_127,ENTRY_128,ENTRY_129
} entries_t;

int 
main(int argc, char **argv)
{
  entries_t x,y;

  x = ENTRY_127;
  y = ENTRY_128;
  printf("hello world %d %d \n",((entries_t)x==ENTRY_127),(y==ENTRY_128));
  printf("more %x %x \n",ENTRY_127,ENTRY_128);
  return 0;
}

$ gcc -o enum_err enum_err.c -g -Wall
$ gdb enum_err


GNU gdb Red Hat Linux (5.2-2)
Copyright 2002 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...
(gdb) ptype entries_t
type = enum {ENTRY_126 = 126, ENTRY_127, ENTRY_128 = -128, ENTRY_129}
(gdb) p/d ENTRY_127
$1 = 127
(gdb) p/d ENTRY_128
$2 = -128
(gdb) p/d ENTRY_129
$3 = -127
(gdb)

-- 
           Summary: gcc3.2.2 generates incorrect debugging enum values
           Product: gcc
           Version: 3.2.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: debug
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: tjruwase at stanfordalumni dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3/3.4/3.5 Regression] gcc3.2.2 generates incorrect debugging enum values

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-02-28 01:17 -------
Confirmed in 3.0.4 (with -gdwarf-2), 3.3.1, 3.5.0, the problem is that drawf-2 is misrepesenting the 
enum for some reason.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |wrong-debug
   Last reconfirmed|0000-00-00 00:00:00         |2004-02-28 01:17:02
               date|                            |
            Summary|gcc3.2.2 generates incorrect|[3.3/3.4/3.5 Regression]
                   |debugging enum values       |gcc3.2.2 generates incorrect
                   |                            |debugging enum values
   Target Milestone|---                         |3.3.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3/3.4/3.5 Regression] gcc3.2.2 generates incorrect debugging enum values

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-01 04:07 -------
Subject: Bug 14328

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	mmitchel@gcc.gnu.org	2004-03-01 04:07:37

Modified files:
	gcc            : ChangeLog dwarf2out.c 

Log message:
	PR debug/14328
	* dwarf2out.c (gen_enumeration_type_die): Output all enumeration
	constants as signed values.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.2979&r2=2.2980
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&r1=1.497&r2=1.498



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3/3.4/3.5 Regression] gcc3.2.2 generates incorrect debugging enum values

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-01 04:08 -------
Subject: Bug 14328

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	mmitchel@gcc.gnu.org	2004-03-01 04:08:06

Modified files:
	gcc            : ChangeLog dwarf2out.c 

Log message:
	PR debug/14328
	* dwarf2out.c (gen_enumeration_type_die): Output all enumeration
	constants as signed values.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.268&r2=2.2326.2.269
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.478.2.5&r2=1.478.2.6



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3 Regression] gcc3.2.2 generates incorrect debugging enum values

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-01 04:11 -------
Fixed in GCC 3.4 and GCC 3.5.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[3.3/3.4/3.5 Regression]    |[3.3 Regression] gcc3.2.2
                   |gcc3.2.2 generates incorrect|generates incorrect
                   |debugging enum values       |debugging enum values


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3 Regression] gcc3.2.2 generates incorrect debugging enum values

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-03-02 13:47 -------
Subject: Bug 14328

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	gdr@gcc.gnu.org	2004-03-02 13:47:28

Modified files:
	gcc            : ChangeLog dwarf2out.c reload1.c 

Log message:
	Backport from 3.4.0:
	2004-02-29  Mark Mitchell  <mark@codesourcery.com>
	PR debug/14328
	* dwarf2out.c (gen_enumeration_type_die): Output all
	enumeration
	constants as signed values.
	
	2004-01-16  J"orn Rennecke <joern.rennecke@superh.com>
	PR optimization/11864
	* reload1.c (reload_cse_simplify_operands): Don't remove
	implicit extension from LOAD_EXTEND_OP.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.914&r2=1.16114.2.915
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/dwarf2out.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.390.2.10&r2=1.390.2.11
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/reload1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.366.2.7&r2=1.366.2.8



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328

[Bug debug/14328] [3.3 Regression] gcc3.2.2 generates incorrect debugging enum values

[gdr at gcc dot gnu dot org]

------- Additional Comments From gdr at gcc dot gnu dot org  2004-03-02 13:51 -------
Applied patch

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14328