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Re: bignum branch

From: Paul Eggert
Subject: Re: bignum branch
Date: Tue, 17 Jul 2018 11:55:48 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Eli Zaretskii wrote:
It's mostly a performance concern on 32-bit platforms.
Only on those built --with-wide-int, right?  Because otherwise, a
32-bit 'long' is just fine with GMP.

It could also be a problem with integer types other than EMACS_INT, which would affect 32-bit platforms even if --with-wide-int is not used. As I recall, Tom's patch works around the problems only when converting Emacs integers, so there could be a correctness issue there as well as an efficiency issue, since the problem would remain unfixed for the other integer types.

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