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[cadence]*F,CUVUNF happens when irun 09.20-s024 on `uvm_blocking_put_imp_decl(_reg)


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Cadence expert,

My implementation works in IES/0920_s12, but fails when chaning to IES/0920_s24, the error message is like below, could anyone give some help? and thanks!

ncelab: *F,CUVUNF (ahb_rgm_master_squr.sv, 2|31): Hierarchical name component lookup failed at 'UVM_IMPLEMENTATION.

ahb_rgm_master_squr.sv

line 2: `uvm_blocking_put_imp_decl(_reg)

Thank you so much!

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I have seen similar problems before when uvm is imported in the compilation unit scope and for some reason the name lookup for ius can't find some of the identifiers. One thing to try for a workaround is to explicitly import that symbol in the ahb_rgm_master_squr.sv file. Do something like:

import uvm_pkg::UVM_IMPLEMENTATION;

Or, you can just try importing uvm_pkg::* in that file.

You should also file a ticket with Cadence to get the issue resolved.

john

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This is just a workaround. It looks like there is probably a bug in the symbol lookup code in IUS. I am guessing that you are probably importing uvm_pkg::* inside of the compilation unit scope but your class definition that uses the _decl is in another scope. I recall a similar issue about 6 months ago. I will try to create a testcase to reproduce the issue, but if you can contact the Cadence customer support with a failing testcase, that will speed the process up.

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  • 7 months later...

Same kind of problem happens again when IES/1020_s15 and UVM10p1, more and more lines are needed when the same error happens.

import uvm_pkg::*;

import uvm_pkg::UVM_NONE;

import uvm_pkg::UVM_ERROR;

import uvm_pkg::UVM_LOW;

import uvm_pkg::UVM_FATAL;

Although it works, however it looks very strange. hope Cadence could fixs it.

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