476     BF(t3, t5, t5, t1);\
477     BF(a2.re, a0.re, a0.re, t5);\
489     BF(t3, t5, t5, t1);\
490     BF(a2.re, a0.re, r0, t5);\
499     CMUL(t5, t6, a3.re, a3.im, wre,  wim);\
506     t5 = a3.re;\
515     FFTDouble t1, t2, t3, t4, t5, t6;\
551     FFTDouble t1, t2, t3, t4, t5, t6, t7, t8;  local
557     BF(t7, t5, z[2].im, z[3].im);
560     BF(z[2].im, z[0].im, t2, t5);
565     FFTDouble t1, t2, t3, t4, t5, t6;  in fft8()  local
571     BF(t5, z[7].re, z[6].re, -z[7].re);  in fft8()
581     FFTDouble t1, t2, t3, t4, t5, t6;  in fft16()  local