Intel® Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 12/12/2022
Public

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REMOVE_DUPLICATE_REGISTERS

Removes a register if it is identical to another register. If two registers generate the same logic, the second one will be deleted and the first one will be made to fan out to the second one's destinations. Also, if the deleted register has different logic option assignments, they will be ignored. This option is useful if you wish to prevent the Compiler from removing duplicate registers that you have used deliberately. You can do this by setting the option to Off. This option is ignored if it is applied to anything other than an individual register or a design entity containing registers.

Old Name

DUPLICATE_REGISTER_EXTRACTION

Type

Boolean

Device Support

  • This setting can be used in projects targeting any Intel FPGA device family.

Notes

This assignment supports Fitter wildcards.

This assignment is included in the Analysis & Synthesis report.

This assignment supports synthesis wildcards.

Syntax


set_global_assignment -name REMOVE_DUPLICATE_REGISTERS <value>
set_global_assignment -name REMOVE_DUPLICATE_REGISTERS -entity <entity name> <value>
set_instance_assignment -name REMOVE_DUPLICATE_REGISTERS -to <to> -entity <entity name> <value>

Default Value

On

Example


set_global_assignment -name remove_duplicate_registers off
set_instance_assignment -name remove_duplicate_registers off -to foo