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Re: inline build_string performance

From: Andreas Schwab
Subject: Re: inline build_string performance
Date: Tue, 26 Jun 2012 17:17:31 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.1 (gnu/linux)

Paul Eggert <address@hidden> writes:

> Trunk bzr 108742 changed build_string from a standard
> extern function to a static inline function:
> static inline Lisp_Object
> build_string (const char *str)
> {
>   return make_string (str, strlen (str));
> }
> This is not an unalloyed win, since it bloats the
> size of the Emacs executable, as callers to build_string
> often now have two function calls (strlen + make_string),
> not one (just build_string).

On the plus side the argument of build_string is often a constant which
causes the strlen call to be optimized out completely.


Andreas Schwab, address@hidden
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