https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71201
acsawdey at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |acsawdey at gcc dot gnu.org --- Comment #1 from acsawdey at gcc dot gnu.org --- The symptom I observed was that a large number of xxlor were generated moving stuff back and forth between register sets. I didn't quite figure out where the problem was but the generated code also failed when run on the power9 simulator.