GNU bug report logs - #17147
Performance regression by 3000000% for evaluating "and" form

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Package: guile;

Reported by: David Kastrup <dak <at> gnu.org>

Date: Mon, 31 Mar 2014 09:59:02 UTC

Severity: wishlist

Done: Mark H Weaver <mhw <at> netris.org>

Bug is archived. No further changes may be made.

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Message #45 received at 17147-done <at> debbugs.gnu.org (full text, mbox):

From: Mark H Weaver <mhw <at> netris.org>
To: David Kastrup <dak <at> gnu.org>
Cc: 17147-done <at> debbugs.gnu.org
Subject: Re: bug#17147: [PATCH] Add versions of and/or avoiding O(n^2)
 argument matching
Date: Wed, 04 Jun 2014 21:09:23 -0400

David Kastrup <dak <at> gnu.org> writes:

> Fixes <http://bugs.gnu.org/17147>
>
> * module/ice-9/boot-9.scm (and, or): Add syntax rules that only do one
>   pattern matching operation per and/or rather than per argument.

Thanks, but I ended up simply changing the macros to dotted tail
patterns.  It's commit 1ea8954814d124b995f2296bc6aec92adb566bc1.

I'm closing this bug now.

      Mark
This bug report was last modified 11 years and 43 days ago.

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