__kernel_tandf
float __kernel_tandf(double,int);
return __kernel_tandf(x,1);
return __kernel_tandf(x + (hx>0 ? -t1pio2 : t1pio2), -1);
return __kernel_tandf(x + (hx>0 ? -t2pio2 : t2pio2), 1);
return __kernel_tandf(x + (hx>0 ? -t3pio2 : t3pio2), -1);
return __kernel_tandf(x + (hx>0 ? -t4pio2 : t4pio2), 1);
return __kernel_tandf(y,1-((n&1)<<1));
t = __kernel_tandf(M_PI * x, 1);
t = -__kernel_tandf(M_PI * (0.5 - x), -1);