You need to report on Compensation Form Data, along with Performance form content and Form Status.
Using the bridge column "Rating Source Document ID" you have additional options for creating reports combining Performance information, Form Status and Compensation information
PM form Rating Source Document ID is available as a bridge column to join Compensation sub domain schemas with the relevant PM sub domain schemas.
Using this join you can pull additional information from the PM and Form Status sub-domain schema and report that along with Comp data.
For Example, you could pull data from Completed Comp forms and include new salary, objective, competency and overall ratings from Performance.
Cross Domain Reporting
Rating Source , KBA , LOD-SF-CMP , Compensation Management , LOD-SF-ANA , Analytics & Reporting (Ad Hoc, ORD) , How To