root/src/system/libroot/posix/musl/math/arm64/llrintf.c
#include <math.h>

long long llrintf(float x)
{
        long long n;
        __asm__ (
                "frintx %s1, %s1\n"
                "fcvtzs %x0, %s1\n" : "=r"(n), "+w"(x));
        return n;
}