I recently dug up my old autonomous car project based on a Texas Instruments Tiva C EK-TM4C123GXL Launchpad. The process of getting it up and running on a new(er) mac was fairly straightforward. First, I installed Code Composer Studio:

brew install --cask code-composer-studio

TivaWare, the SDK for Tiva C is still available for download at https://www.ti.com/tool/SW-TM4C.

Unfortunately, the installer is Windows-only, but as I could find in an old thread on TI E2E, the file is simply a self-extracting ZIP. The tip from that thread about changing the file extension to .zip did not work for me, but I was able to extract it with unzip in the terminal. (It is also possible to extract it with Keka and, conceivably, many of the other Mac unarchivers as well.)

unzip SW-EK-TM4C123GXL-2.2.0.295.exe -d TivaWare-2.2.0.295

Then, I just moved the extracted folder to /Applications/TI/ and it was recognized by CCS.

Final step was to rename the path used in the CCS project after importing it.