https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79058
--- Comment #24 from Dominik Vogt <vogt at linux dot vnet.ibm.com> --- While you're at it ... does it have the same or a similar cause as the Avr bug? https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78883 (A HImode quantity got allocated to r31+r32 (r31 is the last hardreg), in presence of a paradoxical subreg of memory.)