* compile.c (iseq_compile_each): do not add debug information

  without --debug or --debug=frozen-string-literal option
  because String#dup slows down with debug information.
  [Feature #11725]

* NEWS: apply about it.

* test/ruby/test_rubyoptions.rb: catch up this fix with refactoring.




git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53009 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 8 insertions, 3 deletions

diff --git a/compile.c b/compile.c
index d3a9b37b3a..a8935db0af 100644
--- a/compile.c
+++ b/compile.c
@@ -5340,9 +5340,14 @@ iseq_compile_each(rb_iseq_t *iseq, LINK_ANCHOR *ret, NODE * node, int poped)
 	    }
 	    else {
 		VALUE str = rb_str_dup(node->nd_lit);
-		VALUE debug_info = rb_ary_new_from_args(2, iseq->body->location.path, INT2FIX(line));
-		rb_ivar_set(str, id_debug_created_info, rb_obj_freeze(debug_info));
-		ADD_INSN1(ret, line, putobject, rb_obj_freeze(str));
+		if (ISEQ_COMPILE_DATA(iseq)->option->debug_frozen_string_literal || RTEST(ruby_debug)) {
+		    VALUE debug_info = rb_ary_new_from_args(2, iseq->body->location.path, INT2FIX(line));
+		    rb_ivar_set(str, id_debug_created_info, rb_obj_freeze(debug_info));
+		    ADD_INSN1(ret, line, putobject, rb_obj_freeze(str));
+		}
+		else {
+		    ADD_INSN1(ret, line, putobject, rb_fstring(str));
+		}
 		iseq_add_mark_object_compile_time(iseq, str);
 	    }
 	}