https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108374
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |jakub at gcc dot gnu.org
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
The warning is simply badly designed like most of the middle-end warnings.
As has been discussed, we should have some switch to decide what to do when we
have such provable UB, and the possibilities should be turn it into
__builtin_unreachable (), turn it into __builtin_trap () or for users who don't
mind seeing lots of false positives keep the warning. Though perhaps now that
we have -funreachable-traps the option could be just 2 possibilities,
unreachable vs. (useless) warnings, with the default of the former.
