Why is the number of DSP block 9-bit elements shown as "N/A until Partition Merge" even after the design is fully compiled?

Description

In the Quartus® II software version 10.0, the Flow Summary report shows the line DSP block 9-bit elements as N/A until Partition Merge even after the design is fully compiled, when you target Stratix® V devices. DSP block usage is not displayed because Stratix V devices do not have DSP 9-bit elements.

You can check the DSP block usage in the line DSP Blocks of the Flow Summary report.

This problem is scheduled to be fixed in a future version of the Quartus II software.