1  /* { dg-do compile } */
       2  /* { dg-require-effective-target arm_fp16_alternative_ok } */
       3  /* { dg-options "-mfp16-format=alternative -pedantic -std=gnu99" } */
       4  
       5  #include <math.h>
       6  
       7  /* NaNs are not representable in the alternative format; we should get a
       8     diagnostic.  */
       9  __fp16 xx = NAN; /* { dg-warning "overflow" } */