sysdeps/x86_64/fpu/math_private.h

   1 #ifndef _MATH_PRIVATE_H
   2
   3 #define math_opt_barrier(x) \
   4 ({ __typeof(x) __x;                                     \
   5    if (sizeof (x) <= sizeof (double))                   \
   6      __asm ("" : "=x" (__x) : "0" (x));                 \
   7    else                                                 \
   8      __asm ("" : "=t" (__x) : "0" (x));                 \
   9    __x; })
  10 #define math_force_eval(x) \
  11 do                                                      \
  12   {                                                     \
  13     if (sizeof (x) <= sizeof (double))                  \
  14       __asm __volatile ("" : : "x" (x));                \
  15     else                                                \
  16       __asm __volatile ("" : : "f" (x));                \
  17   }                                                     \
  18 while (0)
  19
  20 #include <math/math_private.h>
  21 #endif