https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108359
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |aldyh at gcc dot gnu.org, | |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- r13-1162 causes the multiplication by 5 be done in short int rather than unsigned short int type. And that makes threadfull1 do a different decision apparently.