Re: inline build_string performance

[Andreas Schwab <schwab@linux-m68k.org>]

Paul Eggert <eggert@cs.ucla.edu> 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.

-- 
Andreas Schwab, schwab@linux-m68k.org
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