[ruby-cvs:78752] 254477248c (master): Skip optimized method check for most method IDs

John Hawthorn	2019-12-13 08:47:59 +0900 (Fri, 13 Dec 2019)

  New Revision: 254477248c

  https://github.com/ruby/ruby/commit/254477248c

  Log:
    Skip optimized method check for most method IDs
    
    Previously every time a method was defined on a module, we would
    recursively walk all subclasses to see if the module was included in a
    class which the VM optimizes for (such as Integer#+).
    
    For most method definitions we can tell immediately that this won't be
    the case based on the method's name. To do this we just keep a hash with
    method IDs of optimized methods and if our new method isn't in that list
    we don't need to check subclasses at all.

  Modified files:
    internal.h
    vm.c
    vm_method.c