gcc/testsuite/gcc.target/arm/fp16-compile-none-2.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-mfp16-format=none" } */
   3
   4 /* mode(HF) attributes are not recognized unless you explicitly enable
   5    half-precision floating point by selecting -mfp16-format=ieee or
   6    -mfp16-format=alternative.  */
   7 float xx __attribute__((mode(HF))) = 0.0;  /* { dg-error "HF" } */