https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78141
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Blocks| |24639 Keywords| |diagnostic CC| |msebor at gcc dot gnu.org Resolution|--- |FIXED --- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> --- GCC 11 reports the uninitialized reads either way, at all optimization levels (including -O0). It looks like r239785 was the first revision when GCC started warning at -O0 although that revision just changed the xtensa target so I'm not sure if that's relevant. Similarly, bisection indicates r177670 started warning with optimization, and that revision is again unrelated to this. Either way, GCC now warns so this can be resolved as fixed. Referenced Bugs: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=24639 [Bug 24639] [meta-bug] bug to track all Wuninitialized issues