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);