https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69373
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- I think the following patch fixes the warning: apinski@xeond:~/src/upstream-gcc/gcc/gcc/cp$ git diff except.c diff --git a/gcc/cp/except.c b/gcc/cp/except.c index a8acbc4b7b2..28d7810e182 100644 --- a/gcc/cp/except.c +++ b/gcc/cp/except.c @@ -949,7 +949,8 @@ can_convert_eh (tree to, tree from) if (! at_least_as_qualified_p (to, from)) return false; - if (VOID_TYPE_P (to)) + if (VOID_TYPE_P (to) + && TREE_CODE (TREE_TYPE (from)) != FUNCTION_TYPE) return true; /* Else fall through. */