https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98087
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- We often (but not always) treat it as regression because compilation of random garbage code (that happens to include the newly added builtin) didn't ICE before and now ICEs. A different case is when one needs newly added command line switches to trigger the ICE, in that case it is usually not considered a regression. Anyway, no matter if it is or isn't marked a regression, we should be fixing bugs in newly added features...
