[tree0ssa] Dead const/pure function removal take II

[Diego Novillo]

On Tue, 2003-11-11 at 12:31, Jan Hubicka wrote:

> 	* gimplify.c (gimplify_call_expr):  Unset side effects for
> 	pure functions too.
> 	* tree-cfg.c (update-call_expr_flags): New function.
> 	(remove_useless_stmts_and_vars_1): Use it.
> 	(is_ctrl_altering_stmt):  Pure/const calls enver alter.
>
I can't parse this last entry.


Diego.