[Bug c/12560] New: [tree-ssa] Error revocery problem with enum

[Bug c/12560] New: [tree-ssa] Error revocery problem with enum

[falk at debian dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

           Summary: [tree-ssa] Error revocery problem with enum
           Product: gcc
           Version: tree-ssa
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery
          Severity: normal
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: falk at debian dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: alphaev68-unknown-linux-gnu
  GCC host triplet: alphaev68-unknown-linux-gnu
GCC target triplet: alphaev68-unknown-linux-gnu

falk@juist:/tmp% cat min.c

foo()
enum { a = b };

falk@juist:/tmp% gcc --version
gcc (GCC) 3.5-tree-ssa 20031009 (merged 20031005)
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

falk@juist:/tmp% gcc -c min.c
min.c: In function `foo':

min.c:2: error: `b' undeclared (first use in this function)
min.c:2: error: (Each undeclared identifier is reported only once
min.c:2: error: for each function it appears in.)
min.c:2: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

[Bug c/12560] [3.4 Regression] Error revocery problem with enum

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2003-10-09 23:11:13
               date|                            |
            Summary|[tree-ssa] Error revocery   |[3.4 Regression] Error
                   |problem with enum           |revocery problem with enum
   Target Milestone|---                         |3.4
            Version|tree-ssa                    |3.4


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-10-09 23:11 -------
It also happens on the mainline (20031009). Also it is a regression from 3.3.1.

undeclared_variable (id=0x40100f40) at /home/gates/pinskia/src/gnu/gcc/src/gcc/c-decl.c:1967
1967      scope->shadowed = tree_cons (id, IDENTIFIER_SYMBOL_VALUE (id),
(gdb) bt
#0  undeclared_variable (id=0x40100f40) at /home/gates/pinskia/src/gnu/gcc/src/gcc/c-
decl.c:1967
#1  0x080783dc in build_external_ref (id=0x40100f40, fun=0) at /home/gates/pinskia/src/gnu/
gcc/src/gcc/c-typeck.c:1603
#2  0x0804c613 in yyparse () at c-parse.y:596
#3  0x080525db in c_parse_file () at c-parse.y:3033
#4  0x080a3c6b in c_common_parse_file (set_yydebug=2) at /home/gates/pinskia/src/gnu/gcc/
src/gcc/c-opts.c:1226
#5  0x083029b4 in toplev_main (argc=2, argv=0xbffec754) at /home/gates/pinskia/src/gnu/gcc/
src/gcc/toplev.c:1792
#6  0x080c453e in main (argc=2, argv=0x2) at /home/gates/pinskia/src/gnu/gcc/src/gcc/
main.c:35

[Bug c/12560] [3.4 Regression] Error revocery problem with enum

[pinskia at gcc dot gnu dot org]

PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560


pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|2003-10-09 23:11:13         |2003-10-26 23:03:16
               date|                            |


------- Additional Comments From pinskia at gcc dot gnu dot org  2003-10-26 23:03 -------
>From Phil's regression hunter: Search converges between 2003-03-17-trunk (#247) and 2003-03
-18-trunk (#248).

[Bug c/12560] [3.4 Regression] Error revocery problem with enum

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2003-12-08 23:28 -------
The regression was introduced by Zack's patch

http://gcc.gnu.org/ml/gcc-patches/2003-03/msg01594.html
http://gcc.gnu.org/ml/gcc-cvs/2003-03/msg00901.html

Zack, could you please have a look?


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |zack at codesourcery dot com


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4 Regression] Error revocery problem with enum

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2003-12-08 23:42 -------
Will address this as part of the c-decl.c overhaul I'm doing now.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4 Regression] Error recovery problem with enum

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |minor


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4/3.5 Regression] Error recovery problem with enum

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-25 02:52 -------
The problem is that this point current_function_decl is not NULL but 
current_function_scope is NULL.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4/3.5 Regression] Error recovery problem with enum

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-01-25 23:14 -------
I have also seen this when you leave out the closing crucly brace for a function.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |3.3


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4/3.5 Regression] Error recovery problem with enum

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-03-09 10:29 -------
As this is just an ICE after a valid error message, we can postpone this until
3.4.1.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.0                       |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4/3.5 Regression] Error recovery problem with enum

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2004-03-16 20:57 -------
Fixed by the c-decl.c rewrite:
http://gcc.gnu.org/ml/gcc-patches/2004-03/msg01280.html

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4 Regression] Error recovery problem with enum

[zack at gcc dot gnu dot org]

------- Additional Comments From zack at gcc dot gnu dot org  2004-03-23 23:52 -------
fixed in 3.5

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|3.3                         |3.3 3.5.0
            Summary|[3.4/3.5 Regression] Error  |[3.4 Regression] Error
                   |recovery problem with enum  |recovery problem with enum


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4 Regression] Error recovery problem with enum

[falk at debian dot org]

------- Additional Comments From falk at debian dot org  2004-05-05 18:48 -------
As Zack says, it's fixed.


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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560

[Bug c/12560] [3.4 Regression] Error recovery problem with enum

[pinskia at gcc dot gnu dot org]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|3.4.1                       |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12560