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Re: Loop optimizer misses simple optimisation?
- To: Kamil Iskra <kiskra at ernie dot icslab dot agh dot edu dot pl>
- Subject: Re: Loop optimizer misses simple optimisation?
- From: Richard Henderson <rth at cygnus dot com>
- Date: Tue, 28 Apr 1998 16:03:04 -0700
- Cc: egcs at cygnus dot com
- References: <Pine.GSO.3.95.980428154521.25424H-100000@ernie>
- Reply-To: Richard Henderson <rth at cygnus dot com>
On Tue, Apr 28, 1998 at 03:53:55PM +0200, Kamil Iskra wrote:
> In a debate on comp.sys.amiga.programmer, a debate that I would sum up as
> "Does GCC really optimize so well as some people claim?" I came across a
> relatively simple source where GCC indeed does perform rather poorly:
I havn't checked, but that is the kind of thing I was trying to address
with some loop optimizations back in January. You might try
http://www.cygnus.com/ml/egcs/1998-Jan/0796.html
and see if it improves things.
r~