[Bug middle-end/126418] [17 regression] PR113894 introduces new UB in optimized code
"pinskia at gcc dot gnu.org via Gcc-bugs" <[email protected]>
| Newsgroups | gmane.comp.gcc.bugs |
|---|---|
| Message-ID | <[email protected]/bugzilla/> |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126418 --- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> --- Just a FYI, I can't figure out a testcase where: cmp + (-cmp ^ x) Would wrong code even with maybe introduced the undefined behavior. That is because if the edge that is defined by -x would have cause undefined behavior to begin with. It is definitely good to fix though.