https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66782
--- Comment #11 from Vladimir Makarov <vmakarov at gcc dot gnu.org> --- (In reply to Michael Matz from comment #9) > I don't see any code in inherit_reload_reg or its caller inherit_in_ebb > that would look at CALL_INSN_FUNCTION_USAGE on any intervening insns, > between the inheritance setup and any of the next usage insns. Mike, thanks for the analysis. Inheritance code has a simplified live analysis which is needed only when there is inheritance beyond BB. The full live analysis is done by code in lra-lives.c which is executed right after inheritance but before the assignment code in lra-assigns.c.
