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From: Simon Tournier <zimon.toutoune@gmail.com>
To: "Ludovic Courtès" <ludo@gnu.org>
Cc: Ricardo Wurmus <rekado@elephly.net>,
	Josselin Poiret <dev@jpoiret.xyz>,
	Mathieu Othacehe <othacehe@gnu.org>,
	Tobias Geerinckx-Rice <me@tobias.gr>,
	70398@debbugs.gnu.org, Christopher Baines <guix@cbaines.net>
Subject: [bug#70398] [PATCH 5/5] packages: Reduce code bloat due to list allocation in input fields.
Date: Mon, 15 Apr 2024 19:56:08 +0200	[thread overview]
Message-ID: <87zftuik7b.fsf@gmail.com> (raw)
In-Reply-To: <e66ee292ea3368424d1ec904a45c804f5fa81879.1713194148.git.ludo@gnu.org> ("Ludovic Courtès"'s message of "Mon, 15 Apr 2024 17:37:07 +0200")

Hi Ludo,

On lun., 15 avril 2024 at 17:37, Ludovic Courtès <ludo@gnu.org> wrote:

> +    ((_ (list args ...))
> +     ;; As of 3.0.9, (list ...) is open-coded, which can lead to a long list
> +     ;; of instructions.  To reduce code bloat in package modules where input
> +     ;; fields may create such lists, move list allocation to the callee.
> +     (add-input-labels args ...))

I am not sure to understand: « (list ...) is open-coded, which can lead
to a long list of instructions. ».  Well, irrelevant for .go size but
why not something like:

    ((_ (list args . rest))
      (apply add-inputs-labels (append args rest)))

It would not change for .go size but it would change for run-time if
it’s a long list, no?

Cheers,
simon




  reply	other threads:[~2024-04-15 18:08 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-15 15:27 [bug#70398] [PATCH 0/5] Reduce the size of gnu/packages/*.go files Ludovic Courtès
2024-04-15 15:37 ` [bug#70398] [PATCH 1/5] records: Do not inline throws for ABI mismatches Ludovic Courtès
2024-04-15 15:37 ` [bug#70398] [PATCH 2/5] packages: Reduce bloat induced by ‘sanitize-inputs’ Ludovic Courtès
2024-04-15 15:37 ` [bug#70398] [PATCH 3/5] records: Do not inline the constructor Ludovic Courtès
2024-04-15 15:37 ` [bug#70398] [PATCH 4/5] packages: ‘define-public’ replacement calls ‘module-export!’ directly Ludovic Courtès
2024-04-15 15:37 ` [bug#70398] [PATCH 5/5] packages: Reduce code bloat due to list allocation in input fields Ludovic Courtès
2024-04-15 17:56   ` Simon Tournier [this message]
2024-04-15 20:31     ` Ludovic Courtès
2024-04-22  0:15       ` Simon Tournier
2024-04-15 16:10 ` [bug#70398] [PATCH 0/5] Reduce the size of gnu/packages/*.go files Ludovic Courtès
2024-04-15 18:49   ` Simon Tournier
2024-04-15 16:24 ` Ludovic Courtès
2024-04-15 18:06 ` Simon Tournier
2024-05-04 17:17   ` bug#70398: " Ludovic Courtès

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