From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Martin v. Loewis" <martin@loewis.home.cs.tu-berlin.de>
To: michmike@cs.utexas.edu
Cc: gcc@gcc.gnu.org, gcc-help@gcc.gnu.org
Subject: Re: HELP!!!
Date: Tue, 16 May 2000 23:27:00 -0000
Message-id: <200005170620.IAA01425@loewis.home.cs.tu-berlin.de>
References: <Pine.LNX.4.21.0005151113250.8208-100000@tommygoff.cs.utexas.edu>
X-SW-Source: 2000-05/msg00098.html

> I am looking to find out what specific optimizations -O2
> and -O3 do..both low-level and machine-independent ones and the
> online docs are not very clear. I need those for some performance
> testing I need to do. If anyone knows the answers I would be really
> oblidged.

Just have a look at the section "Optimize Options" of the gcc manual.

Regards,
Martin