ko1	2017-05-26 14:26:57 +0900 (Fri, 26 May 2017)

  New Revision: 58895

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58895

  Log:
    Symbol support for opt_eq_func.
    
    * vm_insnhelper.c (opt_eq_func): optimize for symbol comparison.
      [Bug #13330] [fix GH-1540]

  Modified files:
    trunk/vm_insnhelper.c
Index: vm_insnhelper.c
===================================================================
--- vm_insnhelper.c	(revision 58894)
+++ vm_insnhelper.c	(revision 58895)
@@ -1325,6 +1325,11 @@ opt_eq_func(VALUE recv, VALUE obj, CALL_ https://github.com/ruby/ruby/blob/trunk/vm_insnhelper.c#L1325
 	    return rb_str_equal(recv, obj);
 	}
     }
+    else if (SYMBOL_P(recv) && SYMBOL_P(obj)) {
+	if (EQ_UNREDEFINED_P(SYMBOL)) {
+	    return (recv == obj) ? Qtrue : Qfalse;
+	}
+    }
 
     {
 	vm_search_method(ci, cc, recv);

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