I believe the closest measurement would be in Table VII on page 8 of the paper: http://www.rsg.ci.i.u-tokyo.ac.jp/members/shioya/pdfs/Mashim...
[1] https://people.eecs.berkeley.edu/~krste/papers/SonicBOOM-CAR...
I'm curious if this will work on Lattice ECP5- I'm not really sure if Synplify supports system verilog to the same degree as the Xilinx tools. ECP5 is interesting because it's a $10 FPGA..
On the developer tooling side, there is https://github.com/google/verible for linting, code formatting and code indexing.
On the actual compilation side with there are https://github.com/alainmarcel/Surelog and https://github.com/alainmarcel/UHDM which are then being coupled with open source tools like Yosys to allow targeting Xilinx 7 Series and Lattice ECP5 FPGA ICs with fully open source flows using fully open source FPGA tools like symbiflow.github.io