Intel® Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 4/03/2023
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents

ALLOW_REGISTER_DUPLICATION

Controls whether the Compiler is allowed to duplicate registers to improve design performance. When register duplication is allowed, the Compiler may perform optimizations that create a second copy of a register and move a portion of its fan-out to this new node, in order to improve routability and/or reduce the total routing wire required to route a net with many fan-outs.\r\n\r\nIf register duplication is disabled, optimizations that retime registers will also be disabled.\r\n\r\nThis setting affects Analysis & Synthesis and the Fitter.

Type

Boolean

Device Support

  • Intel® Arria® 10
  • Intel® Cyclone® 10 GX

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_DUPLICATION <value>

Default Value

On

Example

set_global_assignment -name allow_register_duplication on