github.com/afumu/libc@v0.0.6/musl/src/math/arm/fmaf.c (about)

     1  #include <math.h>
     2  
     3  #if __ARM_FEATURE_FMA && __ARM_FP&4 && !__SOFTFP__ && !BROKEN_VFP_ASM
     4  
     5  float fmaf(float x, float y, float z)
     6  {
     7  	__asm__ ("vfma.f32 %0, %1, %2" : "+t"(z) : "t"(x), "t"(y));
     8  	return z;
     9  }
    10  
    11  #else
    12  
    13  #include "../fmaf.c"
    14  
    15  #endif