Register Duplication and Register Retiming Node Naming Scheme

New registers created during optimization by the Quartus^® Prime Standard Editionsoftware, version 7.1 and later, are named using the following conventions:

• All forms of register duplication, except during Physical Synthesis, use the following convention to name a new register: <original_register_name>~_Duplicate_<id>, where <id> is an integer.
• Register duplication during Physical Synthesis uses the following convention to name a new register: <original_register_name>_NEW_REG<id>, where <id> is an integer.
• All forms of register retiming, except during Physical Synthesis, use the following convention to name a new register: <original_register_name>~<id>, where <id> is an integer.
• Register retiming during Physical Synthesis uses the following convention to name a new register: <original_register_name>_NEW_REG<id>, where <id> is an integer.

The Fitter packs registers with other blocks. If duplication is not required, the register name does not change. If duplication is required, the Quartus^® Prime Standard Editionsoftware uses the following naming convention:

• <original_register_name>~_Duplicate_<id>, where <id> is an integer.