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bug#31750: simplify and tune Emacs stack-related allocation


From: Noam Postavsky
Subject: bug#31750: simplify and tune Emacs stack-related allocation
Date: Sat, 09 Jun 2018 23:30:30 -0400
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)

Paul Eggert <address@hidden> writes:

> Subject: [PATCH 01/10] New mint_ptr representation for C pointers
>
> * src/lisp.h (make_mint_ptr, mint_ptrp, xmint_pointer): New functions.

> Use mint pointers instead of merely save pointers.

I think it would be helpful to add a brief summary of the tradeoffs
between save pointers and mint pointers to the commit message.


> +/* A mint_ptr object OBJ represents a pointer P.  OBJ is preferably a
> +   Lisp integer I such that XINTPTR (i) == P, as this is more efficient.
                   ^                    ^
                   I guess one of these is in the wrong case.





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