[Bug c/25183] [4.0/4.1/4.2 Regression] internal compiler error triggered by overflow in constant expression

[rguenth at gcc dot gnu dot org]

------- Comment #7 from rguenth at gcc dot gnu dot org  2006-01-02 14:29 -------
One possible fix would be to make

error.h:8: warning: ISO C restricts enumerator values to range of 'int'

an error instead of a warning in case of -pedantic (or always).  Testing a
patch
to deal with TREE_OVERFLOW in add_case_node instead.  Which raises the question
of the desired semantics of the testcase.  With one "fix" I get

error:
        pushl   %ebp
        movl    %esp, %ebp
        movl    $0, %eax
        leave
        ret

i.e. different code with -pendantic, with another fix
to simply clear the overflow flag the same code as without -pedantic is
emitted.

I'll bootstrap/test the 2nd variant.


-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |rguenth at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2005-11-30 16:17:10         |2006-01-02 14:29:19
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25183