------- Comment #9 from ebotcazou at gcc dot gnu dot org  2006-06-24 14:54 
-------
> The problem appears to be caused by the change of semantics of const_binop in
> this patch:
> 
> 2005-11-16  Eric Botcazou  <[EMAIL PROTECTED]>
> 
>         * fold-const.c (const_binop): Don't constant fold the operation
>         if the result has overflowed and flag_trapping_math.
>         * simplify-rtx.c (simplify_const_binary_operation): Likewise.

This patch doesn't change the semantics of const_binop, it only plugs a hole.
It looks like const_binop is not prepared for itself returning NULL_TREE...


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|ebotcazou at gcc dot gnu dot|
                   |org                         |
         AssignedTo|unassigned at gcc dot gnu   |ebotcazou at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2006-06-24 13:50:09         |2006-06-24 14:54:58
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28151

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