TMC-20552: User Selected Duplication Candidate was Rejected


The Compiler may reject duplication candidate registers that you identify with a DUPLICATE_REGISTER assignment for a variety of reasons. The reason is usually related to the register's connectivity, or other assignments that apply to the register.


Address the issue causing the rejection or remove the DUPLICATE_REGISTER assignment.




Tag Description
register-duplication Design rule checks related to duplication of registers in the design, either manually or automatically.
place Design rule checks which pertain to the Compiler's Place stage.

Device Family

  • Intel®Stratix® 10
  • Intel Agilex®
  • Intel Agilex®
  • Intel Agilex®
  • Intel®Arria® 10