nobu	2018-07-12 14:01:04 +0900 (Thu, 12 Jul 2018)

  New Revision: 63959

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63959

  Log:
    Improve branch misses
    
    Improve branch misses on frozen object predicate checks negatively
    affecting performance of most setters as most objects are not frozen.
    
    [Fix GH-1913]
    
    From: Lourens Naud?\195?\169 <lourens@b...>

  Modified files:
    trunk/include/ruby/intern.h
Index: include/ruby/intern.h
===================================================================
--- include/ruby/intern.h	(revision 63958)
+++ include/ruby/intern.h	(revision 63959)
@@ -254,7 +254,7 @@ void rb_check_frozen(VALUE); https://github.com/ruby/ruby/blob/trunk/include/ruby/intern.h#L254
 void rb_check_trusted(VALUE);
 #define rb_check_frozen_internal(obj) do { \
 	VALUE frozen_obj = (obj); \
-	if (RB_OBJ_FROZEN(frozen_obj)) { \
+	if (RB_UNLIKELY(RB_OBJ_FROZEN(frozen_obj))) { \
 	    rb_error_frozen_object(frozen_obj); \
 	} \
     } while (0)

--
ML: ruby-changes@q...
Info: http://www.atdot.net/~ko1/quickml/