libc-top-half/musl/arch/aarch64/fp_arch.h

   1 #define fp_barrierf fp_barrierf
   2 static inline float fp_barrierf(float x)
   3 {
   4         __asm__ __volatile__ ("" : "+w"(x));
   5         return x;
   6 }
   7
   8 #define fp_barrier fp_barrier
   9 static inline double fp_barrier(double x)
  10 {
  11         __asm__ __volatile__ ("" : "+w"(x));
  12         return x;
  13 }
  14
  15 #define fp_force_evalf fp_force_evalf
  16 static inline void fp_force_evalf(float x)
  17 {
  18         __asm__ __volatile__ ("" : "+w"(x));
  19 }
  20
  21 #define fp_force_eval fp_force_eval
  22 static inline void fp_force_eval(double x)
  23 {
  24         __asm__ __volatile__ ("" : "+w"(x));
  25 }