Thanks for your reply. So, we don't do any "use" check (for globals variables) beyond a module scope. If so, it answers my question. <br><br><div class="gmail_quote">On Fri, Jan 4, 2013 at 6:53 PM, Justin Holewinski <span dir="ltr"><<a href="mailto:justin.holewinski@gmail.com" target="_blank">justin.holewinski@gmail.com</a>></span> wrote:<br>
<blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><div dir="ltr">Since a, b, and c are globals, how does the optimize *know* they are not used elsewhere (e.g. another module)?</div>
</blockquote></div><br>