pio2_hi            73 maint/gnulib/lib/acosl.c   pio2_hi = 1.5707963267948966192313216916397514420986L,
pio2_hi           158 maint/gnulib/lib/acosl.c         return x * pio2_hi + x * pio2_lo;
pio2_hi           183 maint/gnulib/lib/acosl.c       return pio2_hi - (x + x * (p / q) - pio2_lo);
pio2_hi           213 maint/gnulib/lib/acosl.c       return (pio2_hi - asinr5625) - (p / q - pio2_lo);
pio2_hi            71 maint/gnulib/lib/asinl.c   pio2_hi = 1.5707963267948966192313216916397514420986L,
pio2_hi           150 maint/gnulib/lib/asinl.c         return x * pio2_hi + x * pio2_lo;
pio2_hi           215 maint/gnulib/lib/asinl.c     t = pio2_hi + pio2_lo - 2 * asinl (sqrtl ((1 - y) / 2));