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/* Test intermediate rounding of double to float and then to __fp16, using

   an example of a number that would round differently if it went directly

   from double to __fp16.  */

/* { dg-do run } */

/* { dg-options "-mfp16-format=alternative" } */

#include <stdlib.h>

/* The original double value.  */

#define ORIG 0x1.0020008p0

/* The expected (double)((__fp16)((float)ORIG)) value.  */

#define ROUNDED 0x1.0000000p0

typedef union u {

  __fp16 f;

  unsigned short h;

} ufh;

ufh s = { ORIG };

ufh r = { ROUNDED };

double d = ORIG;

int

main (void)

{

  ufh x;

  /* Test that the rounding is correct for static initializers.  */

  if (s.h != r.h)

    abort ();

  /* Test that the rounding is correct for a casted constant expression

     not in a static initializer.  */

  x.f = (__fp16)ORIG;

  if (x.h != r.h)

    abort ();

  /* Test that the rounding is correct for a runtime conversion.  */

  x.f = (__fp16)d;

  if (x.h != r.h)

    abort ();

  return 0;

}