twiddle            59 modules/core/src/opencl/fft.cl     a3 = twiddle(a1 - a3);
twiddle            77 modules/core/src/opencl/fft.cl     a2 = twiddle(sin_120*(a1 - a2));
twiddle           350 modules/core/src/opencl/fft.cl         b6 = twiddle(a2 - a6);
twiddle           359 modules/core/src/opencl/fft.cl         a3 = twiddle(b1 - a3);
twiddle           362 modules/core/src/opencl/fft.cl         a7 = twiddle(a5 - b7);