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From: Eli Zaretskii <eliz@gnu.org>
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Subject: Re: [Emacs-diffs] master 29c360e: Ensure redisplay after "C-x C-e"
Date: Mon, 09 Nov 2015 05:32:52 +0200
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Cc: bruce.connor.am@gmail.com, emacs-devel@gnu.org
To: Stefan Monnier <monnier@iro.umontreal.ca>
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> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: bruce.connor.am@gmail.com,  emacs-devel@gnu.org
> Date: Sun, 08 Nov 2015 17:25:24 -0500
> 
> >> The performance impact is a bit of an issue
> > You mean, the 5% slow-down?
> 
> Yes.  I think it's acceptable only because I know it can be optimized
> away by moving it into the CONSTANT_P branch.

I hope someone will implement CONSTANT_P, then.