From: Eric Wong <normalperson@...>
Date: 2014-01-29T19:24:38+00:00
Subject: [ruby-core:60226] Re: [ruby-trunk - Bug #9262] global_method_cache should be configurable or grow automatically

Eric Wong <normalperson@yhbt.net> wrote:
> So perhaps we should just add a call info-aware
> version of rb_funcall-like functions so we can just use inline cache
> everywhere.

I should add: a cheap way to do this might be to just use a do/while
macro wrapping rb_funcall with a   static __thread rb_call_info_t
variable in its scope.

__thread works on gcc and clang, and maybe other compilers, too,
but other compilers may be stuck with the slow version (or non-MT-safe).
(I prefer we use __thread in case we get rid of GVL)