pio2_2
w = fn * pio2_2;
r -= fn * pio2_2;
pio2_2 = 6.077100506303965976596e-11, /* 2^-34 * 1.0B4611A600000 */
t -= pio2_2;
w1 = fn1 * pio2_2;
w0 = fn0 * pio2_2;
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w2 = fn2 * pio2_2;
pio2_2 = 6.077100506303965976596e-11, /* second 33 bits of pi/2 */
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w2 = fn2 * pio2_2;
pio2_2 = 6.077100506303965976596e-11,
w1 = fn1 * pio2_2;
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w0 = fn0 * pio2_2;
pio2_2 = 6.077100506303965976596e-11,
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w2 = fn2 * pio2_2;
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w2 = fn2 * pio2_2;
pio2_2 = 6.077100506303965976596e-11,
w1 = fn1 * pio2_2;
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w0 = fn0 * pio2_2;
pio2_2 = 6.077100506303965976596e-11, /* second 33 bits of pi/2 */
w0 = fn0 * pio2_2;
w1 = fn1 * pio2_2;
w2 = fn2 * pio2_2;