145   unsigned int hx;  in expm1()  local
147   hx = __HI (x);  in expm1()
148   xsb = hx & 0x80000000; /* sign bit of x */  in expm1()
149   hx &= 0x7fffffff;      /* high word of |x| */  in expm1()
152   if (hx >= 0x4043687A)  in expm1()
155     if (hx >= 0x40862E42)  in expm1()
158       if (hx >= 0x7ff00000)  in expm1()
162         if (((hx & 0xfffff) | low) != 0)  in expm1()
191   if (hx > 0x3fd62e42)  in expm1()
194     if (hx < 0x3FF0A2B2)  in expm1()
220   else if (hx < 0x3c900000)  in expm1()