This is the mail archive of the gcc-help@gcc.gnu.org mailing list for the GCC project.

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]
Other format:	[Raw text]

Re: GCSE

From: Nathan Sidwell <nathan at codesourcery dot com>
To: jfj <jfj at freemail dot gr>
Cc: gcc-help at gcc dot gnu dot org
Date: Mon, 21 Feb 2005 13:43:23 +0000
Subject: Re: GCSE
Organization: Codesourcery LLC
References: <421987BF.1050209@freemail.gr>

jfj wrote:

Hi.

I have a program that uses computed gotos.
Should I use -fno-gcse?

The situation is that there is one very important function with computed
gotos and about 300 others without!
Isn't there a way to disable fgcse for that one function and allow it for
the rest of the code?

With fno-gcse the program is about 0.3% faster, so I can't tell for sure
what's the right thing to do here.


break the file into two parts, one that can be -fgcse'd and one that
can be -fno-gcse'd

nathan

--
Nathan Sidwell    ::   http://www.codesourcery.com   ::     CodeSourcery LLC
nathan@codesourcery.com    ::     http://www.planetfall.pwp.blueyonder.co.uk

Follow-Ups:
- Re: GCSE
  - From: jfj

References:
- GCSE
  - From: jfj

Index Nav:	[Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav:	[Date Prev] [Date Next]	[Thread Prev] [Thread Next]