https://gcc.gnu.org/bugzilla/show_bug.cgi?id=72827
--- Comment #17 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > Is this kind of frame pointer adjustment a common occurrence with Ada code > gen, or do you think this is related to POWER code gen somehow? I've never > seen this sort of thing before. No, that's really weird, but the indices of the 4 instructions show that they have been generated as a group after the initial RTL expansion. Can you find you which RTL pass generates them and attach the associated couple of dump files?