Quartus® Prime Pro Edition Settings File Reference Manual

ID 683296
Date 4/11/2025
Public

Visible to Intel only — GUID: aok1528324471489

Ixiasoft

Document Table of Contents

1.3.8. ALLOW_SHIFT_REGISTER_MERGING_ACROSS_HIERARCHIES

Allows the Compiler to take shift registers from different hierarchies of the design and put them in the same RAM.

Type

Enumeration

Values

  • Always
  • Auto
  • Off

Device Support

  • Arria® 10
  • Cyclone® 10 GX
  • Stratix® 10

Notes

This assignment is included in the Analysis & Synthesis report.

This assignment supports synthesis wildcards.

Syntax

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

Default Value

Auto

Example

		set_global_assignment -name allow_shift_register_merging_across_hierarchies off
		set_instance_assignment -name allow_shift_register_merging_across_hierarchies off -to foo
	

See Also

Auto Shift Register Replacement