# comment => "any comment for constructor",
# reg_req => { in => [ "reg_class|register" ], out => [ "reg_class|register|in_rX" ] },
# cmp_attr => "c source code for comparing node attributes",
+# outs => { "out1", "out2" } # optional, creates pn_op_out1, ... consts
+# ins => { "in1", "in2" } # optional, creates n_op_in1, ... consts
+# mode => "mode_Iu" # optional, predefines the mode
# emit => "emit code with templates",
-# attr => "attitional attribute arguments for constructor"
-# init_attr => "emit attribute initialization template"
+# attr => "attitional attribute arguments for constructor",
+# init_attr => "emit attribute initialization template",
# rd_constructor => "c source code which constructs an ir_node"
+# hash_func => "name of the hash function for this operation",
# latency => "latency of this operation (can be float)"
# attr_type => "name of the attribute struct",
# },