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xmvlog warning: *W,DUPATR duplicate attribute name (trans)

galenxiao

When I use xrun to do simulation, many warnings are reported as below:

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file: /proj/example/rtl/axi2local.v
(* covered_fsm, channel, is="IntCurState", os="IntNextState", trans="IDLE->IDLE", trans="IDLE->WAIT", trans="WAIT->WAIT", trans="WAIT->RSP", trans="RSP->IDLE", trans="RSP->RSP" *)
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xmvlog: *W,DUPATR (/proj/example/rtl/axi2local.v,12669|87): duplicate attribute name (trans).

-------------------------------------------------------------------------------

It seems that xrun think it's not correct to use multiple "trans" attibute. But I think this is allowed in Verilog-2001 standard. I've seen this kind of code many times. Am I right?

Thanks a lot!

  • From the IEEE1800-2017 SystemVerilog standard (which supersedes the Verilog-2001 standard), clause 5.12 states:

    "If the same attribute name is defined more than once for the same language element, the last attribute value shall be used, and a tool can issue a warning that a duplicate attribute specification has occurred."

    So the tool is correctly giving you a warning here. If you don't care for the warning, add "-nowarn DUPATR" to your compilation command.

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