ICX cannot find sinf16 even though mathimf is included

[jboline]

I'm trying to write a simple program, but for some reason the compiler cannot find sinf16.  My really simple test program is

#include <mathimf.h>

int main()
{
    _Float16 a;
    a = sinf16(1);
}

Using oneapi 2024.1.0 I try to build it with ICX but get an error that sinf16 is undeclared in spite of the fact it is defined in mathimf

What am I missing here?

[jboline · Accepted solution]

Ok, turns out this function is only valid for avx512fp16 architectures

[Viet_H_Intel]

Yes, will get "illegal instruction" if executed on non-support hardware. 

$ icx t4.c -D__AVX512FP16__ &&./a.out
Illegal instruction (core dumped)
$ cat t4.c
#include <mathimf.h>
#include<stdio.h>

int main()
{
_Float16 a;
a = sinf16(1);
printf ("a is %f\n",(float)a);
return 0;
}