https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81291
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org Known to work| |8.0 Summary|[6/7/8 Regression] wrong |[6/7 Regression] wrong code |code with -O2 |with -O2 |-fno-rerun-cse-after-loop |-fno-rerun-cse-after-loop |-fno-tree-ter -fno-tree-vrp |-fno-tree-ter -fno-tree-vrp |-funroll-loops due to |-funroll-loops due to |improper carry |improper carry Known to fail|8.0 | --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Indeed, fixed by r254874 on the trunk.