Hi, While working on upgrading the gcc-sh-elf Debian package from gcc 11 to gcc 12, I think I've found a regression. I'm able to reproduce it with an upstream bare-metal build. I've had a hard time figuring out how to bisect it. A naive run with git bisect start git bisect new . git bisect old releases/gcc-11.2.0 fails with The merge base 250f234988b6231669a720c52101d3686d645072 is new. The property has changed between 250f234988b6231669a720c52101d3686d645072 and [7ca388565af176bd4efd4f8db1e5e9e11e98ef45]. error: bisect run failed: 'git bisect--helper --bisect-state (null)' exited with error code -3 I'm not enough of a Git or GCC wizard to get further. Does anyone have any advice so I can make an informative bug report?