| CAUSE: | You turned on one or more options under Fitter optimizations, and attempted to back-annotate the current design. However, the Quartus II software cannot perform these netlist optimizations on a back-annotated design. |
| ACTION: | Click Yes to back-annotate the design, or click No to cancel the operation. If you want to use one of these netlist optimizations on a design and then back-annotate a design, Altera recommends that you generate a Verilog Quartus Mapping File (.vqm) that indicates the duplicated LUTs that the Quartus II software generated and/or resynthesized while fitting the design. |
See also:
Back-Annotating Assignments for a Project
Optimizing Netlists During Synthesis & Fitting
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