.. _preserve_kernel:

preserve_kernel
-------------

The LegUp HLS compiler optimizes away functions that are not used. 
This parameter prevents a given function from being optimized away. 

Category
+++++++++

HLS Constraints

Value Type
+++++++++++

+--------------------+------------+
| Parameter          | Value Type |
+====================+============+
| preserve_kernel    | String     |
+--------------------+------------+

Valid Values
+++++++++++++

See Examples

Default Value
++++++++++++++

N/A

Dependencies
+++++++++++++

None

Applicable Flows
+++++++++++++++++

All devices and flows

Test Status
++++++++++++

Actively in-use

Examples
+++++++++

``preserve_kernel "add"``

--------------------------------------------------------------------------------