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Unmapped point (not-mapped) in (R)

artoo

What does it means when Conformal finds an unmapped point that exists in the revised file (netlist) but not in the golden file (rtl)?

E.g. here is my message:

Unmapped point (not-mapped):
  (R)   1516   DFF  ... hierarchy... /ic_addr_reg_22/U$1

 

I see the always block case statement in the rtl for ic_addr_reg so it exists in rtl, and other similar structures exist which don't cause the same problem.

   always @(posedge ClkIn)
     casez({clk_qual, m_state, ic_update_addr})
       {1'b0, 4'b????,           1'b?} : ic_addr[31:3] <= #1 ic_addr[31:3] ;
       {1'b1, _M_READ_IC_ADDR,   1'b?} : ic_addr[31:3] <= #1 dma_rf_rd_data[31:3] ;
       {1'b1, _M_REREAD_IC_ADDR, 1'b?} : ic_addr[31:3] <= #1 dma_rf_rd_data[31:3] ;
       {1'b1, _M_DMA_WAIT,       1'b1} : ic_addr[31:3] <= #1 ic_addr[31:3] + 29'h1;
       default                         : ic_addr[31:3] <= #1 ic_addr[31:3];
     endcase
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