https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86684
--- Comment #10 from Segher Boessenkool <segher at gcc dot gnu.org> --- Also happens on native builds: ~/build/tot/gcc/f951 -quiet -Wall -W -O2 bounds_check_19.f90 -mabi=elfv2 -mlittle -mno-fprnd Error: unrecognizable insn: (insn 79 78 80 6 (set (reg:DI 175) (unspec:DI [ (reg:SF 176) ] UNSPEC_FCTID)) "bounds_check_19.f90":22 -1 (nil)) during RTL pass: vregs