mame	2018-09-20 16:36:10 +0900 (Thu, 20 Sep 2018)

  New Revision: 64792

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64792

  Log:
    * compile.c (compile_case): emit opt_case_dispatch only on optimized mode

  Modified files:
    trunk/compile.c
Index: compile.c
===================================================================
--- compile.c	(revision 64791)
+++ compile.c	(revision 64792)
@@ -5095,7 +5095,7 @@ compile_case(rb_iseq_t *iseq, LINK_ANCHO https://github.com/ruby/ruby/blob/trunk/compile.c#L5095
 	ADD_INSNL(cond_seq, nd_line(orig_node), jump, endlabel);
     }
 
-    if (only_special_literals) {
+    if (only_special_literals && ISEQ_COMPILE_DATA(iseq)->option->specialized_instruction) {
 	iseq_add_mark_object_compile_time(iseq, literals);
 
 	ADD_INSN(ret, nd_line(orig_node), dup);

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