It has been researched: Alessandro Forin's eMIPS research project was on integrating FPGA fabric as an execution unit. Project page: https://www.microsoft.com/

It has been researched: Alessandro Forin's eMIPS research project was on integrating FPGA fabric as an execution unit. Project page: https://www.microsoft.com/en-us/research/project/emips/ https://www.microsoft.com/en-us/research/project/emips/ Research paper: https://www.microsoft.com/en-us/research/wp-content/uploads/2016/02/emips-emipsreport1.pdf https://www.microsoft.com/en-us/research/wp-content/uploads/... Back then Moore's Law was still going full steam so there wasn't much interest but, who knows, maybe that will change in a few years.