Computer Chess Club Archives

Search

Messages

Subject: Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt.

Author: Eugene Nalimov

Date: 11:27:03 08/05/03

Go up one level in this thread

On August 05, 2003 at 13:35:18, Frank Phillips wrote:

>...
>
>Eugene has previously stated that gcc is philosophically slow because of the
>developers intention to not concentrate on specific cpu architecture – I think.

No, I did bot stated that. I stated that

(1) Some ancient decisions were made in gcc design when VAX and mc68k were
primary gcc targets; the worst one is poor memory disambiguation. Now that
decisions hurt optimizations a lot, especially on CPUs with large number of
registers, but fixing those decisions require *highly coordinated* rewrite of
lot of code for lot of targets.

(2) Some optimizations that would benefit *all* target CPUs are rejected on the
strictly ideological principles.

Thanks,
Eugene

>Frank

• Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt. Dieter Buerssner 13:59:09 08/06/03
• Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt. Anthony Cozzie 14:17:55 08/05/03
• Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt. Frank Phillips 11:32:56 08/05/03
  • Re: ot. is the gcc 3.3 compiler just as fast as microsoft's now?? nt. Bo Persson 00:54:28 08/06/03

This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.