1#include <math.h> 2 3#if __riscv_flen >= 64 4 5double copysign(double x, double y) 6{ 7 __asm__ ("fsgnj.d %0, %1, %2" : "=f"(x) : "f"(x), "f"(y)); 8 return x; 9} 10 11#else 12 13#include "../copysign.c" 14 15#endif 16