Provide instructions for reproducing the issue. Make sure to include all necessary source files. (You can simply drag&drop a .zip file into the issue editor.)
Also, make sure that the issue is actually reproducable in current git master of Yosys.
See https://stackoverflow.com/help/mcve for some information on how to create a Minimal, Complete, and Verifiable example (MCVE).
Please do not waste our time with issues that lack sufficient information to reproduce the issue easily. We will simply close those issues.
Contact https://www.symbioticeda.com/ if you need commercial support for Yosys.
Please describe the behavior you would have expected from the tool.
Please describe how the behavior you see differs from the expected behavior.