gcc/testsuite/gcc.dg/tg-tests.h

/* Test various type-generic builtins by calling "main_tests()".  */

#define FP_NAN 1
#define FP_INFINITE 2
#define FP_NORMAL 3
#define FP_SUBNORMAL 4
#define FP_ZERO 5
#define fpclassify(X) __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, FP_ZERO, (X))

void __attribute__ ((__noinline__))
foo_1 (float f, double d, long double ld,
       int res_unord, int res_isnan, int res_isinf,
       int res_isinf_sign, int res_isfin, int res_isnorm,
       int res_signbit, int classification)
{
  if (__builtin_isunordered (f, 0) != res_unord)
    __builtin_abort ();
  if (__builtin_isunordered (0, f) != res_unord)
    __builtin_abort ();
  if (__builtin_isunordered (d, 0) != res_unord)
    __builtin_abort ();
  if (__builtin_isunordered (0, d) != res_unord)
    __builtin_abort ();
  if (__builtin_isunordered (ld, 0) != res_unord)
    __builtin_abort ();
  if (__builtin_isunordered (0, ld) != res_unord)
    __builtin_abort ();

  if (__builtin_isnan (f) != res_isnan)
    __builtin_abort ();
  if (__builtin_isnan (d) != res_isnan)
    __builtin_abort ();
  if (__builtin_isnan (ld) != res_isnan)
    __builtin_abort ();
  if (__builtin_isnanf (f) != res_isnan)
    __builtin_abort ();
  if (__builtin_isnanl (ld) != res_isnan)
    __builtin_abort ();

  if (__builtin_isinf (f) != res_isinf)
    __builtin_abort ();
  if (__builtin_isinf (d) != res_isinf)
    __builtin_abort ();
  if (__builtin_isinf (ld) != res_isinf)
    __builtin_abort ();
  if (__builtin_isinff (f) != res_isinf)
    __builtin_abort ();
  if (__builtin_isinfl (ld) != res_isinf)
    __builtin_abort ();

  if (__builtin_isinf_sign (f) != res_isinf_sign)
    __builtin_abort ();
  if (__builtin_isinf_sign (d) != res_isinf_sign)
    __builtin_abort ();
  if (__builtin_isinf_sign (ld) != res_isinf_sign)
    __builtin_abort ();

  if (__builtin_isnormal (f) != res_isnorm)
    __builtin_abort ();
  if (__builtin_isnormal (d) != res_isnorm)
    __builtin_abort ();
  if (__builtin_isnormal (ld) != res_isnorm)
    __builtin_abort ();

  if (__builtin_isfinite (f) != res_isfin)
    __builtin_abort ();
  if (__builtin_isfinite (d) != res_isfin)
    __builtin_abort ();
  if (__builtin_isfinite (ld) != res_isfin)
    __builtin_abort ();

  if (__builtin_finitef (f) != res_isfin)
    __builtin_abort ();
  if (__builtin_finite (f) != res_isfin)
    __builtin_abort ();
  if (__builtin_finite (d) != res_isfin)
    __builtin_abort ();
  if (__builtin_finitel (d) != res_isfin)
    __builtin_abort ();
  if (__builtin_finitel (ld) != res_isfin)
    __builtin_abort ();

  /* Sign bit of zeros and nans is not preserved in unsafe math mode.  */
#ifdef UNSAFE
  if (!res_isnan && f != 0 && d != 0 && ld != 0)
#endif
    {
      if ((__builtin_signbit (f) ? 1 : 0) != res_signbit)
	__builtin_abort ();
      if ((__builtin_signbit (d) ? 1 : 0) != res_signbit)
	__builtin_abort ();
      if ((__builtin_signbit (ld) ? 1 : 0) != res_signbit)
	__builtin_abort ();
      if ((__builtin_signbitf (f) ? 1 : 0) != res_signbit)
	__builtin_abort ();
      if ((__builtin_signbitl (ld) ? 1 : 0) != res_signbit)
	__builtin_abort ();
    }

  /* Subnormals can abruptly underflow to zero in unsafe math
     mode, so bypass testing these numbers if necessary.  */
#ifdef UNSAFE
  if (classification != FP_SUBNORMAL)
#endif
    {
      if (fpclassify(f) != classification)
	__builtin_abort ();
      if (fpclassify(d) != classification)
	__builtin_abort ();
      if (fpclassify(ld) != classification)
	__builtin_abort ();
    }
}

void __attribute__ ((__noinline__))
foo (float f, double d, long double ld,
     int res_unord, int res_isnan, int res_isinf,
     int res_isfin, int res_isnorm, int classification)
{
  foo_1 (f, d, ld, res_unord, res_isnan, res_isinf, res_isinf, res_isfin, res_isnorm, 0, classification);
  /* Try all the values negated as well.  All will have the sign bit set,
     except for the nan.  */
  foo_1 (-f, -d, -ld, res_unord, res_isnan, res_isinf, -res_isinf, res_isfin, res_isnorm, 1, classification);
}

int __attribute__ ((__noinline__))
main_tests (void)
{
  volatile float f;
  volatile double d;
  volatile long double ld;
  
  /* Test NaN.  */
  f = __builtin_nanf(""); d = __builtin_nan(""); ld = __builtin_nanl("");
  foo(f, d, ld, /*unord=*/ 1, /*isnan=*/ 1, /*isinf=*/ 0, /*isfin=*/ 0, /*isnorm=*/ 0, FP_NAN);

  /* Test infinity.  */
  f = __builtin_inff(); d = __builtin_inf(); ld = __builtin_infl();
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 1, /*isfin=*/ 0, /*isnorm=*/ 0, FP_INFINITE);

  /* Test zero.  */
  f = 0; d = 0; ld = 0;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 0, FP_ZERO);

  /* Test one.  */
  f = 1; d = 1; ld = 1;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1, FP_NORMAL);

  /* Test minimum values.  */
  f = __FLT_MIN__; d = __DBL_MIN__; ld = __LDBL_MIN__;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1, FP_NORMAL);

  /* Test subnormal values.  */
  f = __FLT_MIN__/2; d = __DBL_MIN__/2; ld = __LDBL_MIN__/2;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 0, FP_SUBNORMAL);

  /* Test maximum values.  */
  f = __FLT_MAX__; d = __DBL_MAX__; ld = __LDBL_MAX__;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1, FP_NORMAL);

  /* Test overflow values.  */
  f = __FLT_MAX__*2; d = __DBL_MAX__*2; ld = __LDBL_MAX__*2;
  foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 1, /*isfin=*/ 0, /*isnorm=*/ 0, FP_INFINITE);

  return 0;
}