https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88652
Andrey Belevantsev <abel at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |abel at gcc dot gnu.org --- Comment #2 from Andrey Belevantsev <abel at gcc dot gnu.org> --- (In reply to Martin Liška from comment #1) > Any progress on this please? Maybe a stupid question, but how do I debug this If I read that source line correctly, we're just assuming that for a HARD_REG_SET set and a (regno, mode) pair we can always have enough space in the set for regno, regno + 1, ..., regno + hard_regno_nregs (regno, mode) - 1. Is that not true anymore?