BN_lshift1
if (!BN_lshift1(dv, dv))
if (!BN_lshift1(T, B))
if (!BN_lshift1(tmp, X))
|| !BN_lshift1(g, in_b)
|| !BN_lshift1(r, in_a))
if (!BN_lshift1(r, a))
if (!BN_lshift1(r, a))
if (!BN_lshift1(r, r))
if (!(BN_lshift1(r1x2, r1)
|| !BN_lshift1(tmp, q)
int BN_lshift1(BIGNUM *r, const BIGNUM *a);
|| !TEST_true(BN_lshift1(ret, a))
|| !TEST_true(BN_lshift1(other_p, other_p)))
&& TEST_true(BN_lshift1(n, n))
&& TEST_true(BN_lshift1(n, n))