https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109416
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note aarch64 issue is totally different: (insn 13 6 14 2 (set (reg:DI 2 x2 [94]) (const_int 1048575 [0xfffff])) "/app/example.cpp":5:10 65 {*movdi_aarch64} (nil)) (insn 14 13 8 2 (set (reg:DI 3 x3 [+8 ]) (const_int 0 [0])) "/app/example.cpp":5:10 65 {*movdi_aarch64} (nil)) (insn 8 14 11 2 (set (mem/c:TI (reg/f:DI 0 x0 [92]) [1 Data+0 S16 A128]) (reg:TI 2 x2 [94])) "/app/example.cpp":5:10 70 {*movti_aarch64} (nil)) Please file that seperately.