You can do a google search for these things . . . . but here you go . . .
https://www.cadence.com/rl/Resources/datasheets/encounter_rtlcompiler.pdf
https://www.cadence.com/rl/Resources/datasheets/rtl_physical_ds.pdf
Low Power design is complex. There's a lot of steps involved, but in our evaluation, Cadence tools are most advanced for Low Power solutions . . Here are the steps
1. Identify the user needs (surfing, cell-phone, zigbee etc., GPS, demographic, switched off most of the time)
2. Create the Low Power Architecture (Power Shut-off (w/wo retention), Multi-supply voltage, etc - clock gating etc. are all standard today)
3. Create the Low Power Specification Format (CPF and/or UPF)
4. Validate your CPF and RTL with Conformal-Low Power (CLP)
4. Import the CPF and RTL into Encounter RTL-Compiler
5. Synthesize the netlist
6. Validate the netlist Conformal-Low Power (CLP)
7. Simulate the RTL and the CPF with Incisive Enterprise Simulator (IES)
7. Import your netlist into your P&R tool (we use SoC-Encounter and Magma)
8. Plan your power structure and do place and route
9. Output a physical netlist
10. Validate your netlist with Conformal-Low Power
Good luck!
-- adam