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Re: i386 inline-asm string functions - some questions
Ulrich Drepper <drepper@redhat.com> writes:
> Zack Weinberg wrote:
>> I once tried to get Uli to take them out again, with
>> hard numbers to back me up, but he ignored me.
>
> I have absolutely no problem taking out the inlines once gcc is able to
> perform the same optimizations. Problem is that nobody spent the time
> so far to complete the task in gcc.
This is true - I believe Joseph Myers put a list of yet-to-be-done
optimizations on the GCC projects page ...
> As far as I know each function we still have has an advantage over
> the gcc code.
... however, that advantage is only theoretical. Experiments such as
Peter Zaitsev's just now, and mine several years ago, demonstrate that
the bits/string.h and bits/string2.h inlines make code worse, not better.
Therefore they should be removed.
zw