Path: utzoo!attcan!uunet!husc6!think!barmar
From: barmar@think.COM (Barry Margolin)
Newsgroups: comp.arch
Subject: Re: "interprocedural analysis useless for code optmization"
Message-ID: <29285@think.UUCP>
Date: 14 Oct 88 13:51:19 GMT
References: <9988@cup.portal.com>
Sender: news@think.UUCP
Reply-To: barmar@kulla.think.com.UUCP (Barry Margolin)
Organization: Thinking Machines Corporation, Cambridge, MA
Lines: 18

In article <9988@cup.portal.com> bcase@cup.portal.com writes:
>maybe C programs provide more opportunities.  Any data out there?

I don't have any data, but I do suspect that C provides more
opportunities than Pascal.  The difference is that in Pascal, aliases
can only occur due to VAR parameters.  In C, however, the address of
ANY variable (except register variables) may be taken, so there is
more possibility of aliasing.

I think PL/I provides even more possibilities, because of nested
procedures.


Barry Margolin
Thinking Machines Corp.

barmar@think.com
{uunet,harvard}!think!barmar