https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68110
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
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Target| |x86_64*-* i686-*-*
Component|c |target
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Looks like the unused sub is not being removed.
Normally when someone uses __builtin_sub_overflow, the sub will not be unused.
