fusl/src/math/arm/fabsf.c

#include <math.h>

#if __ARM_PCS_VFP

float fabsf(float x) {
  __asm__("vabs.f32 %0, %1" : "=t"(x) : "t"(x));
  return x;
}

#else

#include "../fabsf.c"

#endif