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RE: criteria.html open issues
- To: <dewar at gnat dot com>,<amylaar at redhat dot com>,<zackw at Stanford dot EDU>
- Subject: RE: criteria.html open issues
- From: <bobbymcn2002 at yahoo dot com>
- Date: Fri, 15 Jun 2001 11:01:18 -0500
- Cc: <acahalan at cs dot uml dot edu>,<gcc at gcc dot gnu dot org>
I am not going to use it any more. I keep running into problems building GCC
and BINUTILS.
Finally, after a week of "playing around", I am just using configure and let
the computer handle the rest. Even if it means getting debugging info in
there.
-----Original Message-----
From: dewar@gnat.com [mailto:dewar@gnat.com]
Sent: Friday, June 15, 2001 10:09 AM
To: amylaar@redhat.com; bobbymcn2002@yahoo.com; zackw@Stanford.EDU
Cc: acahalan@cs.uml.edu; dewar@gnat.com; gcc@gcc.gnu.org
Subject: RE: criteria.html open issues
>>What do you think about -O3?
We always advise our users (of GNAT) against using -O3 because
in practice we find it usually pessimizes performance (presumably
because of excessive icache misses). Of course in Ada it is
standard practice to specifically mark in the source (with
pragma Inline) things that should be inlined, so it is not
particularly helpful to have the compiler second guessing
the users specification.
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