This is the mail archive of the gcc@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]

Re: g77 performance on ALPHA

To: Toon Moene <toon@moene.indiv.nluug.nl>
Subject: Re: g77 performance on ALPHA
From: Richard Henderson <rth@cygnus.com>
Date: Sat, 28 Aug 1999 12:44:42 -0700
Cc: martin.kahlert@provi.de, egcs@egcs.cygnus.com
References: <199908281130.NAA00385@keksy.linux.provi.de> <19990828114410.A29542@cygnus.com> <37C837A1.816BDB08@moene.indiv.nluug.nl>

On Sat, Aug 28, 1999 at 09:25:21PM +0200, Toon Moene wrote:
> Huh?  Then there must be something pretty wrong with the alpha port -
> this is the inner loop I get with g77 -O3 -funroll-loops, using
> gcc-2.95.1 on Linux/Intel:

] Loop unrolling: Not basic or general induction var.

Use -fno-rerun-loop-opt.  We're somehow losing iteration
information that the unroller needs.

r~

Follow-Ups:
- Re: g77 performance on ALPHA
  - From: Toon Moene <toon@moene.indiv.nluug.nl>

References:
- g77 performance on ALPHA
  - From: martin.kahlert@provi.de
- Re: g77 performance on ALPHA
  - From: Richard Henderson <rth@cygnus.com>
- Re: g77 performance on ALPHA
  - From: Toon Moene <toon@moene.indiv.nluug.nl>

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