https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115905
Eric Botcazou <ebotcazou at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |ebotcazou at gcc dot gnu.org --- Comment #15 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- The symptom on 64-bit SPARC is that MEM_ALIGN is applied to something that is not a MEM, but a PARALLEL: (parallel:DI [ (expr_list:REG_DEP_TRUE (reg:DI 114 [ <retval> ]) (const_int 0 [0])) ]) This comes from the Early SRA pass which turns: D.8652.D.8175._M_fr_ptr = _11; <retval> = D.8652; into SR.40_20 = _11; MEM[(struct Handle *)&<retval>] = SR.40_20; which is a store to something that is not addressable at the RTL level.