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/* Copyright (C) 2004  Free Software Foundation.

   Verify that GCC can determine which built-in functions produce a

   nonnegative result.

   Written by Kaveh Ghazi, 2004-03-10.  */

/* { dg-do link } */

/* { dg-options "-ffast-math" } */

#define PROTOTYPE_RTYPE(FN,RTYPE) extern RTYPE FN(double); \

  extern RTYPE FN##f(float); \

  extern RTYPE FN##l(long double);

#define PROTOTYPE(FN) extern double FN(double); extern float FN##f(float); \

  extern long double FN##l(long double);

#define PROTOTYPE2(FN) extern double FN(double, double); \

  extern float FN##f(float, float); \

  extern long double FN##l(long double, long double);

#define CPROTOTYPE1(FN) extern double FN(_Complex double); \

  extern float FN##f(_Complex float); \

  extern long double FN##l(_Complex long double);

#define CPROTOTYPE1(FN) extern double FN(_Complex double); \

  extern float FN##f(_Complex float); \

  extern long double FN##l(_Complex long double);

#define IPROTOTYPE(FN) extern int FN(int); extern int FN##l(long); \

  extern int FN##ll(long long);

#define PROTOTYPE2TYPE2(FN,A2TYPE) extern double FN(double, A2TYPE); \

  extern float FN##f(float, A2TYPE); \

  extern long double FN##l(long double, A2TYPE);

#define PROTOTYPE2_A2FPTR(FN) extern double FN(double, double *); \

  extern float FN##f(float, float *); \

  extern long double FN##l(long double, long double *);

extern int signbit (double);

extern int signbitf (float);

extern int signbitl (long double);

void test(double d1, double d2, float f1, float f2,

          long double ld1, long double ld2)

{

  /* These are always nonnegative.  */

#define TEST1(FN) \

 extern void link_failure_##FN (void); PROTOTYPE(FN) \

 if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \

   link_failure_##FN()

#define TEST2(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2(FN) \

 if (signbit(FN(d1,d2)) || signbitf(FN##f(f1,f2)) || signbitl(FN##l(ld1,ld2))) \

   link_failure_##FN()

#define CTEST1(FN) \

 extern void link_failure_##FN (void); CPROTOTYPE1(FN) \

 if (signbit(FN(d1)) || signbitf(FN##f(f1)) || signbitl(FN##l(ld1))) \

   link_failure_##FN()

#define ITEST1(FN) \

 extern void link_failure_##FN (void); IPROTOTYPE(FN) \

 if (signbit(FN(d1)) || signbitf(FN##l(f1)) || signbitl(FN##ll(ld1))) \

   link_failure_##FN()

  TEST1 (acos);

  TEST1 (acosh);

  CTEST1 (cabs);

  TEST1 (cosh);

  TEST1 (erfc);

  TEST1 (exp);

  TEST1 (exp10);

  TEST1 (exp2);

  TEST1 (fabs);

  TEST2 (fdim);

  TEST2 (hypot);

  TEST1 (pow10);

  TEST1 (sqrt);

  ITEST1 (ffs);

  ITEST1 (__builtin_parity);

  ITEST1 (__builtin_popcount);

  /* These are nonnegative if the first argument is.  */

#define ARG1TEST1(FN) \

 extern void link_failure_##FN (void); PROTOTYPE(FN) \

 if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \

     || signbitl(FN##l(fabsl(ld1)))) \

   link_failure_##FN()

  /* Same, but allow specifying the return type.  */

#define ARG1TEST1_RTYPE(FN,RTYPE) \

 extern void link_failure_##FN (void); PROTOTYPE_RTYPE(FN,RTYPE) \

 if (signbit(FN(fabs(d1))) || signbitf(FN##f(fabsf(f1))) \

     || signbitl(FN##l(fabsl(ld1)))) \

   link_failure_##FN()

  /* These are nonnegative if the first argument is.  */

#define ARG1TEST2(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2(FN) \

 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \

     || signbitl(FN##l(fabsl(ld1),ld2))) \

   link_failure_##FN()

  /* These are nonnegative if the second argument is.  */

#define ARG2TEST2(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2(FN) \

 if (signbit(FN(d1,fabs(d2))) || signbitf(FN##f(f1,fabsf(f2))) \

     || signbitl(FN##l(ld1,fabsl(ld2)))) \

   link_failure_##FN()

  /* These are nonnegative if the first OR second argument is.  */

#define ARG2TESTor(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2(FN) \

 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \

     || signbitl(FN##l(fabsl(ld1),ld2)) || signbit(FN(d1,fabs(d2))) \

     || signbitf(FN##f(f1,fabsf(f2))) || signbitl(FN##l(ld1,fabsl(ld2)))) \

   link_failure_##FN()

  /* These are nonnegative if the first AND second argument is.  */

#define ARG2TESTand(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2(FN) \

 if (signbit(FN(fabs(d1),fabs(d2))) || signbitf(FN##f(fabsf(f1),fabsf(f2))) \

     || signbitl(FN##l(fabsl(ld1),fabsl(ld2)))) \

   link_failure_##FN()

  /* These are nonnegative if the first argument is, 2nd arg is int.  */

#define ARG2TEST1_A2INT(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2TYPE2(FN, int) \

 if (signbit(FN(fabs(d1),d2)) || signbitf(FN##f(fabsf(f1),f2)) \

     || signbitl(FN##l(fabsl(ld1),ld2))) \

   link_failure_##FN()

  /* These are nonnegative if the first argument is, specify 2nd arg.  */

#define ARG2TEST1_A2FPTR(FN) \

 extern void link_failure_##FN (void); PROTOTYPE2_A2FPTR(FN) \

 if (signbit(FN(fabs(d1),&d2)) || signbitf(FN##f(fabsf(f1),&f2)) \

     || signbitl(FN##l(fabsl(ld1),&ld2))) \

   link_failure_##FN()

  ARG1TEST1 (asinh);

  ARG1TEST1 (atan);

  ARG1TEST1 (atanh);

  ARG1TEST1 (cbrt);

  ARG1TEST1 (ceil);

  ARG1TEST1 (erf);

  ARG1TEST1 (expm1);

  ARG1TEST1 (floor);

  ARG1TEST2 (fmod);

  ARG2TEST1_A2INT (ldexp);

  ARG1TEST1_RTYPE (__builtin_llceil, long long);

  ARG1TEST1_RTYPE (__builtin_llfloor, long long);

  ARG1TEST1_RTYPE (llrint, long long);

  ARG1TEST1_RTYPE (llround, long long);

  ARG1TEST1_RTYPE (__builtin_lceil, long);

  ARG1TEST1_RTYPE (__builtin_lfloor, long);

  ARG1TEST1_RTYPE (lrint, long);

  ARG1TEST1_RTYPE (lround, long);

  /* The modf* functions aren't ever "const" or "pure" even with

     -ffast-math so they won't be eliminated and yield a link failure.  */

  /* ARG2TEST1_A2FPTR (modf);*/

  ARG1TEST1 (nearbyint);

  ARG1TEST2 (pow);

  ARG1TEST1 (rint);

  ARG1TEST1 (round);

  ARG1TEST1_RTYPE (signbit, int);

  ARG1TEST1 (sinh);

  ARG1TEST1 (tanh);

  ARG1TEST1 (trunc);

  ARG2TESTor (fmax);

  ARG2TESTand (fmin);

  ARG2TEST2 (copysign);

}

int main (void)

{

  return 0;

}