https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88793
Alexander Monakov <amonakov at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |amonakov at gcc dot gnu.org
--- Comment #1 from Alexander Monakov <amonakov at gcc dot gnu.org> ---
(In reply to Florian Weimer from comment #0)
> However, optimizing for size is a very big hammer and causes substantial
> performance issues on i386 and x86-64 due to string function inlining. As a
> result, the cold attribute is only suitable for code that is basically never
> executed. For other cases, like repeated execution which only happens in an
> unlikely configuration, it is inappropriate.
Can you please clarify exactly what issues? If you mean inline 'rep
stosb/movsb', their overhead is on the order of 30 cycles, and I don't see what
is inappropriate about it.
