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+Sat Nov 12 00:27:24 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* compile.c (iseq_peephole_optimize): enable tail call
+	  optimization inside a conditional block.
+
 Sat Nov  5 11:53:17 2016  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* io.c (copy_stream_body): use IO to write to copy to duplex IO.