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From: dc@gcm.UUCP
Newsgroups: comp.unix.questions
Subject: Wierd Compilers
Message-ID: <367@white.gcm>
Date: Sun, 1-Nov-87 19:14:28 EST
Article-I.D.: white.367
Posted: Sun Nov  1 19:14:28 1987
Date-Received: Tue, 3-Nov-87 03:19:40 EST
Organization: Greenwich Capital Markets, Greenwich, CT
Lines: 19
Keywords: Sun


/* Program 1 */
main()
{
	int 	i = 500000;

	while(--i);
}

/* Program 2 */
main()
{
	int 	i = 500000;

	while(i--);
}

Does anyone have a guess why program one runs in half the time of program two?
BTW this is a SUN 3.