{"ast_node_type":"variable","tokens":[{"end":73,"kind":"keyword","start":0,"text":"let"}]}
        let res = (b_nan_mask & a_cast) | (b_nan_mask_inverted & b_cast);
        let b_cast = self.context.new_bitcast(self.location, b, mask_type);
        let b = self.context.new_bitcast(self.location, res, vector_type);