https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81012
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- See Also| |https://gcc.gnu.org/bugzill | |a/show_bug.cgi?id=87718 Resolution|--- |FIXED Target Milestone|--- |9.0 Status|NEW |RESOLVED Known to fail| |5.4.0, 8.2.0 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Fixed for GCC 9+ most likely by r9-4310 (aka PR 87718). The reason why I say most likely the above revision is because if we change the return to: return a+1; The spill is no longer there.