Altera Quartus II Settings File - Manual (Page 277)

ALLOW_REGISTER_MERGING
Controls whether the Compiler is allowed to remove registers that are identical to other registers in the
design. When register duplication is allowed, in cases where two registers generate the same logic, one
may be deleted and the remaining one will be made to also fan-out to the deleted register's destinations.
This option is useful if you wish to prevent the Compiler from removing duplicate registers that you have
used deliberately.
Type
Boolean
Device Support
This setting can be used in projects targeting any Altera device family.
Notes
This assignment is included in the Fitter report.
This assignment is included in the Analysis & Synthesis report.
Syntax
set_global_assignment -name ALLOW_REGISTER_MERGING <value>
Default Value
On
Example
set_global_assignment -name allow_register_merging off
MNL-Q21005
2015.05.04
ALLOW_REGISTER_MERGING 277
Quartus Settings File Reference Manual Altera Corporation
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