https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116398
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Looking at df-scan.cc (df_recompute_luids), it uses INSN_P to determine what should have luid assigned and so includes DEBUG_INSNs. So DF_INSN_LUID difference can't be used for code generation, we'd need to walk from PREV_INSN (i3) back not counting DEBUG_INSN until we reach i2 or the count to punt on. Richi/Richard/Segher, thoughts on this?
