[Bug c/27719] New: ICE on invalid function definition

[Bug c/27719] New: ICE on invalid function definition

[reichelt at gcc dot gnu dot org]

The following invalid code snippet triggers an ICE in the C frontend
since at least GCC 2.95.3:

==================
void foo()[] {}
==================

bug.c:1: error: declaration of 'foo' as array of voids
bug.c:1: internal compiler error: tree check: expected function_decl, have
var_decl in start_function, at c-decl.c:5933
Please submit a full bug report, [etc.]


-- 
           Summary: ICE on invalid function definition
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27719

[Bug c/27719] ICE on invalid function definition

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27719

[Bug c/27719] ICE on invalid function definition

[aldot at gcc dot gnu dot org]

------- Comment #1 from aldot at gcc dot gnu dot org  2007-01-15 19:52 -------
Does not seem to ICE for me on i386 with each of

$ gcc-2.95 --version
2.95.4
$ gcc-3.4 --version
gcc-3.4 (GCC) 3.4.6 (Debian 3.4.6-4)
$ gcc-4.1 --version
gcc-4.1 (GCC) 4.1.2 20061028 (prerelease) (Debian 4.1.1-19)
$ gcc-4.2.orig-HEAD --version
gcc-4.2.orig-HEAD (GCC) 4.2.0 20070102 (prerelease)

$ gcc-4.2.orig-HEAD -c -o /dev/null bug.c
bug.c:1: error: declaration of 'foo' as array of voids
bug.c:1: confused by earlier errors, bailing out


-- 

aldot at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27719

[Bug c/27719] ICE on invalid function definition

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-01-15 19:58 -------
> $ gcc-4.2.orig-HEAD -c -o /dev/null bug.c
> bug.c:1: error: declaration of 'foo' as array of voids
> bug.c:1: confused by earlier errors, bailing out

That is an ICE, just hidden by release checking.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27719

[Bug c/27719] ICE on invalid function definition

[jsm28 at gcc dot gnu dot org]

------- Comment #3 from jsm28 at gcc dot gnu dot org  2009-02-21 13:16 -------
Another ICE with possibly the same cause (ICEs in the same place):

int (*g(int y))[z]
{
return 0;
}

t.c:1: error: 'z' undeclared here (not in a function)
t.c:2: internal compiler error: tree check: expected function_decl, have
var_decl in start_function, at c-decl.c:6135


-- 

jsm28 at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|2006-09-03 21:39:54         |2009-02-21 13:16:57
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27719