It turns out this did not introduce any regressions. I accidentally used different sources for comparing runs.

This is the last step before trying to apply the misc-const-correctness fixes.

Performing a --enable=all --inconclusive scan on mame_regtest.

With DISABLE_VALUEFLOW=1:

Clang 14 1,901,388,751 -> 1,901,336,996
GCC 12 1,849,957,590 -> 1,849,623,077

With Valueflow enabled:

Clang 14 50,988,014,175 -> 50,979,722,552
GCC 12 54,791,127,461 -> 54,791,108,211

And scanning cli with --enable=all --inconclusive -Ilib -D __GNUC__ and DISABLE_VALUEFLOW=1

Clang 14 3,172,193,354 -> 3,170,450,670
GCC 12 3,216,157,495 -> 3,214,864,491