Intel® Hyperflex™ Architecture High-Performance Design Handbook

ID 683353
Date 10/04/2021
Public
Document Table of Contents

5.2.8. Extend to locatable node

You may see a path info entry of “Extend to locatable node” in a critical chain. This is a convenience feature to allow you to correlate nodes in the critical chain to design names in your RTL.

Not every line in a critical chain report corresponds to a design entry name in an RTL file. For example, individual routing wires have no correlation with names in your RTL. Typically that is not a problem, because another name on a nearby or adjacent line corresponds with, and is locatable to, a name in an RTL file. Sometimes a line in a critical chain report may not have an adjacent or nearby line that you can locate in an RTL file. This condition occurs most frequently with join points. When this condition occurs, the critical chain segment extends as necessary until the critical chain reaches a line that you can locate in an HDL file.

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