The following prints “not reached”: 
$_ = <<'}';

if ($some_condition) {
        return $X;
} else {
        return $Y;
}

die "not reached";

[download]

In reply to Re: Can't happen bug follow-up -- Can an if/else be bypassed? by Neutron Jack
in thread Can't happen bug follow-up -- Can an if/else be bypassed? by Your Mother

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