Subject: Re: bug#18767: 24.4; incorrect byte-compile on arithmatic comparisons

From: Stefan Monnier <[email-masked]>
Date: Mon, 20 Oct 2014 17:42:56 -0400

Version:24.5

> byte-compile of arithmatic comparison operators on more than two
> arguments is incorrect.

Indeed, I was not very awake when I committed that code.  I just
reverted the change so the byte-compiler simply doesn't optimize this case.
To do any better, I think we'll have to do something like:

loop over all args, doing "byte-compile-form" + "dup", and then apply
the comparisons backward, combining them with "and".

        Stefan