From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jeffrey A Law <law@cygnus.com>
To: Jim Wilson <wilson@cygnus.com>
Cc: Kamil Iskra <kamil@dwd.interkom.pl>, egcs@cygnus.com
Subject: Re: Loop optimizer misses simple optimisation? 
Date: Sun, 03 May 1998 20:10:00 -0000
Message-id: <23546.894251423@hurl.cygnus.com>
References: <199805032232.PAA08246@rtl.cygnus.com>
X-SW-Source: 1998-05/msg00064.html

  In message < 199805032232.PAA08246@rtl.cygnus.com >you write:
  > 	However, a div or mod operation can not generally be moved out of
  > 	a loop unless you know it won't trap (divide by zero).
  > 
  > If an instruction might trap, then it will be moved out of a loop if we
  > can prove that it will be executed at least once.
Ah, yes, you're right.  I forgot about that tidbit.

jeff