25 static inline float
26 eval_P (float z)  in eval_P()
31 static inline float
32 eval_Q (float z)  in eval_Q()
39 static inline float
40 reduce (float x, int32_t *in)  in reduce()
43   float r = x;  in reduce()
44   float q = fmaf (InvPio2, r, Shift);  in reduce()
45   float n = q - Shift;  in reduce()
56    XI is a reinterpreted float and must be >= 2.0f (the sign bit is ignored).
85 /* Top 12 bits of the float representation with the sign bit cleared.  */
87 top12 (float x)  in top12()
95 float
96 tanf (float x)  in tanf()
104      slow large numbers reduction. The reduction step determines r float  in tanf()
107   float r;  in tanf()
120       float x2 = x * x;  in tanf()
121       float y = eval_P (x2);  in tanf()
140       float ar = (float) dar;  in tanf()
163   float z = alt ? -r : r;  in tanf()
166   float z2 = r * r;  in tanf()
167   float offset = alt ? 1.0f / z : z;  in tanf()
168   float scale = alt ? z : z * z2;  in tanf()
171   float p = alt ? eval_Q (z2) : eval_P (z2);  in tanf()