This is the mail archive of the
mailing list for the GCC project.
Re: [tree0ssa] Dead const/pure function removal take II
On Tue, 2003-11-11 at 13:42, Jan Hubicka wrote:
> > 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.
> We was thinking that pure/const call may do nonlocal GOTO and aborted on
> attempt to remove it.
> Perhaps it should say Pure/const calls never alter CFG?
Oh! enver = never? Now I get it. Yes, 'pure/const calls never alter
the CFG' is a bit more clear.