https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99781
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |rsandifo at gcc dot gnu.org, | |vmakarov at gcc dot gnu.org --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Seems in *.ira dump the v1 (33) register is only used in OImode, so reg->biggest_mode being E_OImode makes sense. But for some reason LRA has added (expr_list:REG_DEAD (reg:VNx8BF 33 v1) and the code is unhappy to see partial_subreg_p called for unordered modes.